China Professional hydraulic rotary gearbox for portable water drilling rig bevel gearbox

Warranty: 1 year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Retail, Construction works , Energy & Mining, Construction Machinery, Excavators, Cranes
Customized support: OEM, ODM, OBM
Gearing Arrangement: Planetary
Output Torque: 4188 Nm
Input Speed: 210 r/min
Output Speed: 46 r/min
Name: reducer
Application: slewing drive for excavator, crane
Rated output torque: 3941Nm
Ratio: 5.57:1
Hydraulic motor: user supplied
Gears Style: planetary gears
Customization: Acceptable
Mounting: customer require
Brake: hydraulic braking system
Certification: ISO
Packaging Details: Wooden box
Port: HangZhou

Product Overview hydraulic rotary gearbox for portable water drilling rigDaixin planetary reducer gearbox is designed with large torque, high start and transmission efficiency, low-speed stability, compact radial size, low noise, High Quality Flange-mounted Cycloidal Pin Wheel Reducer with Motor etc. The main devices we are making are walking reducers, lifting reducers and swing reducers. They are widely used for vehicle cranes, crawler cranes, truck mounted cranes, marine cranes, aerial work trucks, excavators, etc. Main Features 1) Compact size2) Low noise3) High transmission efficiency4) Good working condition under lower speed5) Customized hydraulic motors and brakes for different request6) One Year Warranty from reception7) Free components for replacement within warranty period8) Professional and tailored solution for different requirements9) Free technical support at any time10) Customer training is available. Product Paramenters

Product Name Speed reducer
ModelDH4B6Y
Rated output torque3941 Nm
Max. output torque4188 Nm
Reduction ratio5.57:1
Braking typeHydraulic wet braking system
Product packaging Packing and shipping1. Packed by wooden box, fumigation-free for export and import standard.2. Shipped by sea or air with customer require Company Profile ZheJiang CZPT Intelligent Technology Co., Ltd is a scientific and technological enterprise engaged in the research, development and production of planetary gear transmission products, like walking reducers, swing reducers, lifting reducers, hydraulic planetary winches, High power gearbox parallel cajas reductoras de velocidad helical gear motor etc. The company has always put quality management as the top priority of the company’s development. The planetary gear transmission productions are manufactured not only meet the international ISO 4301 and ISO9001 standards, but also meet the US SAE J706 and the European Union CE standards. Daixin Intelligent Technology relies on quality, reputation and service to develop, cultivate and consolidate the national and global markets. Currently, the cooperative customers include: the famous construction machinery manufacturers CZPT and Zoomlion, the largest wrecker manufacturer ZheJiang Yuehai Company, and the largest high-altitude vehicle manufacturer HangZhou Handler Company. Products are also exported to Russia, Canada, India, Malaysia and other countries. Successful Project North American military wreckers Myanmar military vehicles European military wreckers Military truck cranes Civil heavy road wreckers Civil heavy road wreckers FAQ 1.How to choose the gearbox which meets our requirement?A)Look through our shop, find a proper item, send me an inquiry, I quote details for you.B)In case no suitable item in our shop, send me an inquiry with your requirements, Hybrid Dc Encoder Motor Nema 23 With Gearbox Planetary Reducer we can customize for you.2.How to get a good quotation?To offer a precise price, please send me purchasing quantity. Different quantity, different packing size and weight, then different exporting cost.3.What is payment term?A)For regular design: 30% deposit, the balance before loading. B)For customized design: 50% deposit, the balance before loading. The longer cooperation, the better payment term.4.How to ship?Different methods are acceptable: EXW, FOB, CFR, CIF, DDU. We follow your convenience.5.How about after-sale service?A)Within warranty, all spare parts are delivered for free. B)Exceed warranty, all spare parts are offered with the lowest production cost.Warranty period is 1 year, from the time you receive the gearbox, not include production and shipping time. We will register for you, Horizontal Hard Tooth Surface Nmrv Series 25 Reducer Motor Worm Gearbox Speed Reducer and servicing the whole lifetime of gearbox, so no worry for usage.

Spiral Gears for Right-Angle Right-Hand Drives

Spiral gears are used in mechanical systems to transmit torque. The bevel gear is a particular type of spiral gear. It is made up of two gears that mesh with one another. Both gears are connected by a bearing. The two gears must be in mesh alignment so that the negative thrust will push them together. If axial play occurs in the bearing, the mesh will have no backlash. Moreover, the design of the spiral gear is based on geometrical tooth forms.
Gear

Equations for spiral gear

The theory of divergence requires that the pitch cone radii of the pinion and gear be skewed in different directions. This is done by increasing the slope of the convex surface of the gear’s tooth and decreasing the slope of the concave surface of the pinion’s tooth. The pinion is a ring-shaped wheel with a central bore and a plurality of transverse axes that are offset from the axis of the spiral teeth.
Spiral bevel gears have a helical tooth flank. The spiral is consistent with the cutter curve. The spiral angle b is equal to the pitch cone’s genatrix element. The mean spiral angle bm is the angle between the genatrix element and the tooth flank. The equations in Table 2 are specific for the Spread Blade and Single Side gears from Gleason.
The tooth flank equation of a logarithmic spiral bevel gear is derived using the formation mechanism of the tooth flanks. The tangential contact force and the normal pressure angle of the logarithmic spiral bevel gear were found to be about twenty degrees and 35 degrees respectively. These two types of motion equations were used to solve the problems that arise in determining the transmission stationary. While the theory of logarithmic spiral bevel gear meshing is still in its infancy, it does provide a good starting point for understanding how it works.
This geometry has many different solutions. However, the main two are defined by the root angle of the gear and pinion and the diameter of the spiral gear. The latter is a difficult one to constrain. A 3D sketch of a bevel gear tooth is used as a reference. The radii of the tooth space profile are defined by end point constraints placed on the bottom corners of the tooth space. Then, the radii of the gear tooth are determined by the angle.
The cone distance Am of a spiral gear is also known as the tooth geometry. The cone distance should correlate with the various sections of the cutter path. The cone distance range Am must be able to correlate with the pressure angle of the flanks. The base radii of a bevel gear need not be defined, but this geometry should be considered if the bevel gear does not have a hypoid offset. When developing the tooth geometry of a spiral bevel gear, the first step is to convert the terminology to pinion instead of gear.
The normal system is more convenient for manufacturing helical gears. In addition, the helical gears must be the same helix angle. The opposite hand helical gears must mesh with each other. Likewise, the profile-shifted screw gears need more complex meshing. This gear pair can be manufactured in a similar way to a spur gear. Further, the calculations for the meshing of helical gears are presented in Table 7-1.
Gear

Design of spiral bevel gears

A proposed design of spiral bevel gears utilizes a function-to-form mapping method to determine the tooth surface geometry. This solid model is then tested with a surface deviation method to determine whether it is accurate. Compared to other right-angle gear types, spiral bevel gears are more efficient and compact. CZPT Gear Company gears comply with AGMA standards. A higher quality spiral bevel gear set achieves 99% efficiency.
A geometric meshing pair based on geometric elements is proposed and analyzed for spiral bevel gears. This approach can provide high contact strength and is insensitive to shaft angle misalignment. Geometric elements of spiral bevel gears are modeled and discussed. Contact patterns are investigated, as well as the effect of misalignment on the load capacity. In addition, a prototype of the design is fabricated and rolling tests are conducted to verify its accuracy.
The three basic elements of a spiral bevel gear are the pinion-gear pair, the input and output shafts, and the auxiliary flank. The input and output shafts are in torsion, the pinion-gear pair is in torsional rigidity, and the system elasticity is small. These factors make spiral bevel gears ideal for meshing impact. To improve meshing impact, a mathematical model is developed using the tool parameters and initial machine settings.
In recent years, several advances in manufacturing technology have been made to produce high-performance spiral bevel gears. Researchers such as Ding et al. optimized the machine settings and cutter blade profiles to eliminate tooth edge contact, and the result was an accurate and large spiral bevel gear. In fact, this process is still used today for the manufacturing of spiral bevel gears. If you are interested in this technology, you should read on!
The design of spiral bevel gears is complex and intricate, requiring the skills of expert machinists. Spiral bevel gears are the state of the art for transferring power from one system to another. Although spiral bevel gears were once difficult to manufacture, they are now common and widely used in many applications. In fact, spiral bevel gears are the gold standard for right-angle power transfer.While conventional bevel gear machinery can be used to manufacture spiral bevel gears, it is very complex to produce double bevel gears. The double spiral bevel gearset is not machinable with traditional bevel gear machinery. Consequently, novel manufacturing methods have been developed. An additive manufacturing method was used to create a prototype for a double spiral bevel gearset, and the manufacture of a multi-axis CNC machine center will follow.
Spiral bevel gears are critical components of helicopters and aerospace power plants. Their durability, endurance, and meshing performance are crucial for safety. Many researchers have turned to spiral bevel gears to address these issues. One challenge is to reduce noise, improve the transmission efficiency, and increase their endurance. For this reason, spiral bevel gears can be smaller in diameter than straight bevel gears. If you are interested in spiral bevel gears, check out this article.
Gear

Limitations to geometrically obtained tooth forms

The geometrically obtained tooth forms of a spiral gear can be calculated from a nonlinear programming problem. The tooth approach Z is the linear displacement error along the contact normal. It can be calculated using the formula given in Eq. (23) with a few additional parameters. However, the result is not accurate for small loads because the signal-to-noise ratio of the strain signal is small.
Geometrically obtained tooth forms can lead to line and point contact tooth forms. However, they have their limits when the tooth bodies invade the geometrically obtained tooth form. This is called interference of tooth profiles. While this limit can be overcome by several other methods, the geometrically obtained tooth forms are limited by the mesh and strength of the teeth. They can only be used when the meshing of the gear is adequate and the relative motion is sufficient.
During the tooth profile measurement, the relative position between the gear and the LTS will constantly change. The sensor mounting surface should be parallel to the rotational axis. The actual orientation of the sensor may differ from this ideal. This may be due to geometrical tolerances of the gear shaft support and the platform. However, this effect is minimal and is not a serious problem. So, it is possible to obtain the geometrically obtained tooth forms of spiral gear without undergoing expensive experimental procedures.
The measurement process of geometrically obtained tooth forms of a spiral gear is based on an ideal involute profile generated from the optical measurements of one end of the gear. This profile is assumed to be almost perfect based on the general orientation of the LTS and the rotation axis. There are small deviations in the pitch and yaw angles. Lower and upper bounds are determined as – 10 and -10 degrees respectively.
The tooth forms of a spiral gear are derived from replacement spur toothing. However, the tooth shape of a spiral gear is still subject to various limitations. In addition to the tooth shape, the pitch diameter also affects the angular backlash. The values of these two parameters vary for each gear in a mesh. They are related by the transmission ratio. Once this is understood, it is possible to create a gear with a corresponding tooth shape.
As the length and transverse base pitch of a spiral gear are the same, the helix angle of each profile is equal. This is crucial for engagement. An imperfect base pitch results in an uneven load sharing between the gear teeth, which leads to higher than nominal loads in some teeth. This leads to amplitude modulated vibrations and noise. In addition, the boundary point of the root fillet and involute could be reduced or eliminate contact before the tip diameter.

China Professional hydraulic rotary gearbox for portable water drilling rig     bevel gearboxChina Professional hydraulic rotary gearbox for portable water drilling rig     bevel gearbox