An integrated eddy current brake support

Abstract

The utility model discloses an integrated electric eddy current retarder support, and the retarder support is installed at the output end of the main reducer, comprising integrally formed bridge housing rear cover, retarder mounting bracket and through shaft assembly end, and the bridge housing rear cover is connected with the bridge housing body, the retarder is installed on the retarder mounting bracket, the through shaft is inserted into the through shaft assembly end from the bridge housing rear cover and is assembled with the through shaft assembly end through the bearing, the bridge housing rear cover is internally provided with oil inlet, lubricating oil channel and oil outlet, and the lubricating oil enters the lubricating oil channel through the oil inlet and then flows into the bearing of the through shaft assembly end through the oil outlet to lubricate the bearing. By changing the mounting position of the retarder support, the impact deformation problem of the pull rod caused by improper mounting position can be avoided, and the retarder support is integrated to improve the installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crane steering drive axle technology, specifically to an integrated eddy current retarder bracket. Background Technology

[0002] With the development of all-terrain cranes, eddy current retarders are increasingly widely used to bear part of the braking load during vehicle braking, reduce brake temperature, and decrease the risk of skidding, brake failure, and tire blowout. Currently, most crane drive axle retarders are located on the main axle surface of non-continuous axles. This structure commonly suffers from tie rod impact deformation issues in the aftermarket, resulting in lower axle passability.

[0003] The main reason for this problem is that the retarder and its bracket are located at the input end of the main deceleration side. Due to their large size, the steering tie rod needs to be arranged with a safety clearance between itself and the retarder and its bracket, while also ensuring clearance for the upward movement of the lower thrust rod. It is mostly arranged on the bottom side of the retarder. The tie rod is assembled from bottom to top, so the tie rod has a small ground clearance. When the crane is used for engineering hoisting, it often enters construction sites with rugged road conditions. The tie rod collides with ground protrusions, causing the tie rod to deform and affecting the overall vehicle driving safety. In addition, the original retarder bracket was a split type, which was complicated to assemble and resulted in low installation efficiency. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides an integrated eddy current retarder bracket. The technical problem to be solved by this utility model is achieved through the following technical solution:

[0005] An integrated eddy current retarder bracket is disclosed, which is installed at the output end of a main reducer. The bracket includes an integrally formed axle housing rear cover, a retarder mounting bracket, and a through-shaft assembly end. The axle housing rear cover is connected to the axle housing body. The retarder is mounted on the retarder mounting bracket. The through-shaft extends from the axle housing rear cover into the through-shaft assembly end and is assembled with the through-shaft assembly end via a bearing. The axle housing rear cover has an oil inlet, a lubrication channel, and an oil outlet. Lubricating oil enters the lubrication channel through the oil inlet and then flows into the bearing at the through-shaft assembly end through the oil outlet to lubricate the bearing.

[0006] Furthermore, a reverse oil baffle is provided at the front end of the oil inlet, and a reverse oil inlet hole is formed between the reverse oil baffle and the oil inlet, and the reverse oil inlet hole is connected to the oil inlet.

[0007] Furthermore, the retarder mounting bracket includes four retarder support columns, each with mounting holes, through which the connector fixes the retarder to the retarder support columns.

[0008] Furthermore, each of the four retarder support columns has a reinforcing rib on one end face near the rear cover of the axle housing.

[0009] Furthermore, the inner cavity of the through shaft assembly end is threaded with a slotted locking nut, and one end of the outer circumferential curved surface of the through shaft assembly end has a flat boss, an L-shaped locking piece is fixed on the flat boss, and the other end of the L-shaped locking piece is engaged in the slot of the slotted locking nut.

[0010] Furthermore, the circumferential edge of the axle housing rear cover is provided with several connecting holes and several positioning holes. The connecting bolts connect the axle housing rear cover and the axle housing body through the mounting holes, and the positioning pins position the axle housing rear cover and the axle housing body through the positioning holes.

[0011] Preferably, the bearing is a double-row tapered roller bearing.

[0012] The beneficial effects of this utility model are:

[0013] 1. By installing the retarder bracket and retarder at the output end of the main reducer, the tie rod can be installed in a suitable position, avoiding impact deformation caused by improper installation. In addition, integrating the retarder bracket into one piece simplifies the assembly process and improves installation efficiency. Furthermore, to avoid poor bearing lubrication when assembling the through shaft with the through shaft assembly end due to the retarder bracket and retarder being installed at the output end of the main reducer, a lubrication oil passage structure is designed on the rear cover of the axle housing, ensuring good bearing lubrication when the vehicle is moving forward or backward.

[0014] 2. In addition, by setting an L-shaped locking piece at the assembly end of the through shaft, the radial rotation of the retarder bracket is prevented from causing changes in bearing clearance and further reducing bearing life.

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figures 1-3 This is a schematic diagram of the structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the lubrication channels in the rear cover of the axle housing.

[0018] Figures 5-6 This is a schematic diagram of the structure of this utility model after assembly with the through shaft and the bridge housing body.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1-Axle housing rear cover; 2-Retarder mounting bracket; 3-Through shaft assembly end; 4-Axle housing body; 5-Through shaft; 6-Bearing; 7-Reverse oil baffle; 8-Reverse oil inlet hole; 9-Slotted locking nut; 10-L-shaped locking plate; 1-1-Oil inlet; 1-2-Lubricating oil passage; 1-3-Oil outlet; 1-4-Connecting hole; 1-5-Positioning hole; 2-1-Damper support column; 2-2-Mounting hole; 2-3-Reinforcing rib; 3-1-Flat boss. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to specific embodiments, but the implementation of the present invention is not limited thereto.

[0022] Please see Figures 1-4 This utility model provides an integrated eddy current retarder bracket, which is installed at the output end of the main reducer. Specifically, it includes an integrally formed axle housing rear cover 1, a retarder mounting bracket 2, and a through shaft assembly end 3. The axle housing rear cover 1 is connected to the axle housing body 4. The retarder is installed on the retarder mounting bracket 2. The through shaft 5 extends from the axle housing rear cover 1 into the through shaft assembly end 3 and is assembled with the through shaft assembly end 3 through a bearing 6. The axle housing rear cover 1 is provided with an oil inlet 1-1, a lubrication oil passage 1-2, and an oil outlet 1-3. Lubricating oil enters the lubrication oil passage 1-2 through the oil inlet 1-1 and then flows into the bearing 6 of the through shaft assembly end 3 through the oil outlet 1-3 to lubricate the bearing 6.

[0023] In addition, the oil inlet 1-1, the lubricating oil passage 1-2 and the oil outlet 1-3 are all inclined. After installation, the oil inlet 1-1 is at its highest point above the ground, which facilitates the smooth entry of lubricating oil into the bearing.

[0024] By installing the retarder bracket and retarder at the output end of the main reducer, the tie rod can be installed in a suitable position, avoiding impact deformation caused by improper installation. In addition, integrating the retarder bracket into one piece simplifies the assembly process and improves installation efficiency. Furthermore, to avoid poor bearing lubrication when the through shaft is assembled at the through shaft assembly end due to the retarder bracket and retarder being installed at the output end of the main reducer, a lubrication oil passage structure is designed on the rear cover of the axle housing. When the vehicle moves forward, the driven bevel gear in the axle rotates clockwise, throwing lubricating oil into the lubrication oil passage through the oil inlet, and then flowing into the bearing at the through shaft assembly end through the oil outlet to lubricate the bearing, ensuring good bearing lubrication. At the same time, the lubricating oil can reduce the bearing operating temperature and improve bearing life.

[0025] Preferably, the bearing 6 is a double-row tapered roller bearing, which has a stronger load-bearing capacity than the traditional deep groove ball bearing structure and can effectively bear the weight and torque of the retarder itself.

[0026] Furthermore, a reverse oil baffle 7 is provided at the front end of the oil inlet 1-1, and a reverse oil inlet hole 8 is formed between the reverse oil baffle 7 and the oil inlet 1-1, and the reverse oil inlet hole 8 is connected to the oil inlet 1-1.

[0027] The reverse oil baffle 7 is an inclined surface, and its lower end ( Figure 3 (As shown in the orientation) is closer to the oil inlet 1-1 than the upper end. When the vehicle reverses, the driven bevel gear in the axle rotates counterclockwise. The lubricating oil enters through the reverse oil inlet and splashes onto the inner wall of the upper end of the axle housing rear cover 1. When it drips, it is blocked by the reverse oil baffle 7. The lubricating oil falls into the oil passage cavity and then flows into the bearing at the through shaft assembly end through the oil outlet to lubricate the bearing.

[0028] It should be noted that the tilt of the reverse oil baffle is set according to the specific conditions of the vehicle, and this embodiment of the utility model will not be described in detail here.

[0029] Furthermore, the retarder mounting bracket 2 includes four retarder support columns 2-1, each with mounting holes 2-2. Connecting bolts are used to fix the retarder to the retarder support columns 2-1 through the mounting holes 2-2, ensuring stable installation of the retarder.

[0030] Furthermore, each of the four retarder support columns 2-1 is provided with a reinforcing rib 2-3 on one end face near the rear cover 1 of the bridge housing. The reinforcing ribs effectively support the retarder support columns, ensuring their support rigidity and connection strength.

[0031] Furthermore, the inner cavity of the through shaft assembly end 3 is threadedly connected to a slotted locking nut 9 for fixing an oil seal and adjusting bearing clearance. The slotted locking nut 9 has threads on its outer circumference and several grooves on its end circumferentially. The through shaft assembly end 3 is connected to the threaded portion of the slotted locking nut 9, and the grooved portion of the slotted locking nut 9 protrudes from the end of the through shaft assembly end 3. One end of the outer curved surface of the through shaft assembly end 3 has a flat boss 3-1. An L-shaped locking piece 10 is fixed to the flat boss 3-1 by bolts. The other end of the L-shaped locking piece 10 is engaged in the groove of the slotted locking nut 9 to prevent the retarder bracket from rotating radially, which would cause changes in bearing clearance and further reduce bearing life.

[0032] Furthermore, the circumferential edge of the rear cover 1 of the axle housing is evenly provided with a plurality of connecting holes 1-4 and a plurality of positioning holes 1-5. The connecting bolts connect the rear cover 1 of the axle housing and the axle housing body 4 through the connecting holes 1-4, and the positioning pins position the rear cover 1 of the axle housing and the axle housing body 4 through the positioning holes 1-5, thereby completing the connection between the rear cover 1 of the axle housing and the axle housing body 4.

[0033] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An integrated eddy current retarder bracket, characterized in that, The retarder bracket is installed at the output end of the main reducer and includes an integrally formed axle housing rear cover, a retarder mounting bracket, and a through shaft assembly end. The axle housing rear cover is connected to the axle housing body. The retarder is installed on the retarder mounting bracket. The through shaft extends from the axle housing rear cover into the through shaft assembly end and is assembled with the through shaft assembly end through a bearing. The axle housing rear cover is provided with an oil inlet, a lubricating oil passage, and an oil outlet. Lubricating oil enters the lubricating oil passage through the oil inlet and then flows into the bearing at the through shaft assembly end through the oil outlet to lubricate the bearing.

2. The integrated eddy current retarder bracket according to claim 1, characterized in that, A reverse oil baffle is provided at the front end of the oil inlet, and a reverse oil inlet hole is formed between the reverse oil baffle and the oil inlet, and the reverse oil inlet hole is connected to the oil inlet.

3. The integrated eddy current retarder bracket according to claim 1, characterized in that, The retarder mounting bracket includes four retarder support columns, each with mounting holes. The connectors fix the retarder to the retarder support columns through the mounting holes.

4. The integrated eddy current retarder bracket according to claim 3, characterized in that, Each of the four retarder support columns has a reinforcing rib on one end face near the rear cover of the axle housing.

5. The integrated eddy current retarder bracket according to claim 1, characterized in that, The inner cavity of the through shaft assembly end is threaded with a slotted locking nut. One end of the outer circumferential curved surface of the through shaft assembly end has a flat boss. An L-shaped locking piece is fixed on the flat boss. The other end of the L-shaped locking piece is engaged in the slot of the slotted locking nut.

6. The integrated eddy current retarder bracket according to claim 1, characterized in that, The rear cover of the axle housing is provided with several connecting holes and several positioning holes along its circumferential edge. Connecting bolts connect the rear cover of the axle housing and the axle housing body through the mounting holes, and positioning pins position the rear cover of the axle housing and the axle housing body through the positioning holes.

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