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Wheel rim driving device

A wheel-side drive and wheel-hub technology, which is applied to power units, wheel-fixing devices, measuring devices, etc., can solve problems such as unreliability, easy torque slippage, complex structure, etc., and achieves simple structure, good stress condition, and reduced slippage. effect of risk

Pending Publication Date: 2019-11-12
CRRC QISHUYAN INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wheel hubs of this technical solution are respectively connected to the rims on both sides by bolts, so it overcomes the defect that the torque transmission mainly depends on the friction force of the joint surface and is easy to slip. The transmission of friction force generated by clamping is not reliable enough

Method used

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  • Wheel rim driving device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The wheel edge driving device of the present embodiment is as figure 2 As shown, the wheel frame 4 is fixed on the car body, and the traction motor 2 installed on its outside determines the axis of rotation. The inner output end of the motor 2 is connected to the torque tube 6 supported in the wheel frame 4 through a gear device 3. Therefore, the high-speed torque output by the traction motor 2 can be transmitted to the torque tube 6 after the gear device 3 reduces the speed and increases the torque. The flange edge of the outer end of the torque tube 6 is fixedly connected with the inner end of the wheel hub 9 outside the motor housing through the inner and outer bearings 7 and 10, and the outer end of the motor 2 is connected with the wheel frame 4 through the braking device 1, and It is connected with the outer end of the hub 9 to form an outer sealing device. The braking device 1 is composed of a brake caliper and a brake disc, wherein the brake caliper is connecte...

Embodiment 2

[0041] The wheel edge driving device of the present embodiment is as image 3 As shown, the basic structure is the same as that of Embodiment 1, except that an inner retaining wall 5-2 with perforations extends near the outer end of the inner rim 5 toward the axis of rotation, and the inner end of the hub 9 has a flange flange 9-2 ’, the outer end surface of the flange flange 9-2’ fits with the inner end surface of the inner retaining wall 5-2, and a fastening structure is formed by passing through bolts and nuts. Near the inner end of the outer rim 12 extends toward the axis of rotation a perforated inner retaining ring 12-2 that abuts against the outer end surface of the hub 9 and has a threaded hole, and the bolt passes through the perforation of the inner retaining ring 12-2 and the perforation of the outer sealing device at the same time , screwed into the threaded holes on the periphery of the outer end surface of the hub 9 to form a pressing and fastening structure, and...

Embodiment 3

[0047] The wheel edge driving device of the present embodiment is as Figure 4 As shown, the basic structure is the same as that of Embodiment 1, and the outer end of the inner rim 5 has a wedge-shaped closing 5-1, and the inner end of the hub 9 has a radially extended edge 9-3 on one side to form a matching wedge-shaped closing 5-1. Wedge-shaped seam 9-1, the inner end of its outer rim 12 has a wedge-shaped closing 12-1, and the outer end of the wheel hub 9 is equipped with a beveled wedge ring 11', which has a wedge shape with the inner end of the outer rim 12. The wedge-shaped inclined surface matched with the mouth 12-1; the significant difference is that the outer end of the beveled wedge ring 11' has a reduced-diameter stop 11-2 that presses the outer end of the hub 9, and the inner end of the bevel extends out to be inserted into the hub 9 and the radially spaced wedge plugs 11-1 of the outer rim 12. The wedge-shaped notch 9-1 at the inner end of the hub 9 and the wedg...

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Abstract

The invention relates to a wheel rim driving device, and belongs to the technical field of engineering machinery transmission. The device includes a motor which is mounted on the outer side of a wheelframe to determine a spin axis, the inner output end of the motor is connected with a torque tube supported on the wheel frame through a gear device, the torque tube is fixedly connected with the inner end of a wheel hub sleeving outside the motor, and the outer end of the motor is connected with the wheel frame through a braking device and connected with the outer end of the wheel hub to form anouter sealing device, wherein the two ends of the wheel hub are fixedly connected with the outer end of an inner rim and the inner end of an outer rim in a sleeving mode correspondingly. Compared with the prior art, according to the wheel rim driving device, the wheel hub and the inner and outer rims are independently fastened and connected, the slip risk of the intermediate friction surface torsion is significantly lowered, stress when bolts are clamped, fastened and connected is only half the original, the stress condition is better, in addition, a hub adapter is reduced, and the structureis simpler.

Description

technical field [0001] The invention relates to a wheel side driving device, in particular to a wheel side driving device of an off-highway dump truck, relates to a brake, a motor and a connection method with the vehicle, and belongs to the technical field of construction machinery transmission. Background technique [0002] The non-highway dump wheel side drive device is installed inside the tire of the vehicle, and drives the vehicle forward by reducing speed and increasing torque. For example, on a mechanical dump truck, the wheel drive is at the end of the transmission chain, and its typical transmission route is that the power from the engine passes through the gearbox, and then passes through the final drive to the wheel drive. On the electric wheel dump truck, the typical transmission route is that the power from the engine is converted into electric energy through the generator, and then controlled by frequency conversion to provide driving force to the motor to driv...

Claims

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Application Information

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IPC IPC(8): B60K7/00B60B30/06
CPCB60B30/06B60K7/0007
Inventor 张再利汪星徐莎段振中王伟康
Owner CRRC QISHUYAN INSTITUTE CO LTD
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