A kind of axle integral main reduction pre-tightening force selection pad device

Abstract

The utility model discloses a kind of overall type main reduction pre-tightening force pad selection equipment of axle, including base and main cone, further including the detection component for the main cone rotating torque gasket detection being set in base and the mounting assembly for the main cone being set in base for installation, the detection component includes the mounting bracket being set in base, the side of the mounting bracket away from base is equipped with driving motor, the output end of the driving motor is connected with detection gear, the detection gear is engaged with gear ring arrangement.The overall type main reduction pre-tightening force pad selection equipment of axle of the utility model, by the setting of detection component, change the rotating torque of main cone assembly rotation, continuously monitor rotating torque in the process of external expansion until torque reaches the median value in process specified qualified range, record the displacement difference of external expansion amount and initial position at this time, this displacement difference is considered as gasket thickness under the condition of qualified rotating torque.

Description

Technical Field

[0001] This utility model relates to the field of axle main reduction gear selection pad technology, specifically an integrated axle main reduction pre-tightening force selection pad device. Background Technology

[0002] When selecting torque shims for the integral main reducer assembly (the integral main reducer assembly has a one-piece cast structure for the reducer housing, while the split main reducer assembly has a split cast structure for the reducer housing connected by bolts; this structure is very mature in the industry and the naming is common), the torque shims are mainly selected by moving the bearings up and down. That is, the downward displacement distance of the upper bearing and the upward displacement distance of the lower bearing are measured respectively, and the shim thickness is calculated by subtracting the two measured values ​​from the standard bearing clearance distance value.

[0003] However, since this method of selecting shims is based on the difference between the actual distance and the theoretical distance, it requires relatively ideal consistency in component quality and does not consider other influencing factors. In actual production, it will be affected by a variety of factors, which increases the risk of the torque generated by the theoretical result being unqualified. At the same time, there is a certain lag in the accuracy detection of shim selection during the production process. If the selection is incorrect, it will require a large cost for rework and repair.

[0004] Therefore, there is an urgent need for an integrated main reduction preload selection pad device for vehicle axles to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integral main reducer preload selection pad device for axles, comprising a base and a main cone, a connecting shaft fixedly connected to one end of the main cone, two cone bearings provided on the side wall of the connecting shaft, a driven cylindrical gear provided between the two cone bearings, a process spacer provided between the two cone bearings and the driven cylindrical gear, a threaded connector fixedly connected to the end of the connecting shaft away from the main cone, and further comprising a detection component disposed on the base for detecting the rotational torque pad of the main cone and an installation component disposed on the base for installing the main cone;

[0006] The detection component includes a mounting bracket disposed on the base, a drive motor disposed on the side of the mounting bracket away from the base, a detection gear connected to the output end of the drive motor, and a gear ring meshing with the detection gear.

[0007] The mounting assembly includes a lower bearing support slide and an upper bearing support slide disposed on the base. The lower bearing support slide is slidably connected to the base via two symmetrically arranged first guide rails. The upper bearing support slide is fixedly connected to the base and disposed near the mounting frame. The mounting frame is fixed to the upper bearing support slide. The lower bearing support slide and the upper bearing support slide are respectively bolted to a lower bearing fixing frame and an upper bearing fixing frame. Two tapered bearings are respectively disposed on the lower bearing fixing frame and the upper bearing fixing frame. The upper bearing fixing frame is provided with a moving component for moving the lower bearing fixing frame. The base is provided with a measuring component for measuring the moving distance of the lower bearing fixing frame.

[0008] The movable component includes a needle roller bearing disposed on the side of the upper bearing fixing frame near the lower bearing fixing frame. A fixing ring is connected to the side wall of the needle roller bearing. The outer side wall of the fixing ring is connected to the inner side wall of the gear ring. A threaded ring is connected to the side of the fixing ring away from the gear ring through a square plate. The threaded ring is threadedly connected to the inner wall of the lower bearing fixing frame.

[0009] The base is provided with a rotating assembly for driving the main cone to rotate. The rotating assembly includes two symmetrically arranged second guide rails fixedly connected to the base. The two second guide rails are slidably connected to a sliding seat. A rotating motor is provided on the side of the sliding seat away from the base. A circular plate is connected to the output end of the rotating motor. A threaded tube is fixedly connected to the side of the circular plate away from the rotating motor. A clamping ring is connected to the threaded tube through a pressing assembly. Multiple strip plates are fixedly connected to the inner wall of the clamping ring. Multiple strip holes are opened on the outer wall of the threaded tube. Each strip plate is slidably connected to the strip hole.

[0010] The extrusion assembly includes multiple fixing strips fixedly connected to the side wall of the circular plate. Each fixing strip is fixedly connected to a fixing pin on the side near the threaded tube. The side wall of the clamping ring is provided with multiple fixing grooves. Each fixing pin is slidably connected to the fixing groove. Multiple springs are fixedly connected to the side of the circular plate near the threaded tube. Each spring is located in a strip-shaped hole. The end of each spring away from the circular plate is connected to the clamping ring.

[0011] The measuring component includes an L-shaped plate fixedly connected to the base. The L-shaped plate is equipped with a distance sensor, and the detection end of the distance sensor is arranged opposite to the lower bearing support slide.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model discloses an integrated main reducer preload shim selection device for vehicle axles. Through the setting of detection components, and with the coordinated action of installation, movement, rotation, and measurement components, the main cone assembly is simply assembled and its loading posture is simulated. Then, by expanding the upper and lower cone bearings externally, the bearing clearance is changed, thereby changing the rotational torque of the main cone assembly. During the expansion process, the rotational torque is continuously monitored until the torque reaches the median value of the qualified range specified by the process. The displacement difference between the expansion amount at this time and the initial position is recorded. This displacement difference is considered to be the shim thickness under the qualified rotational torque state. The entire shim detection and selection process uses rotational torque as a direct evaluation standard, thereby reducing the risk of deviation from the actual results of purely theoretical size calculation schemes. At the same time, placing shim selection before assembly reduces the probability of reassembly and re-adjustment after assembly due to shim selection during assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0016] Figure 3 This is an exploded view of the overall structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall structure of the main cone of this utility model;

[0018] Figure 5 This is a schematic diagram of the installation component structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the mobile component of this utility model.

[0020] Figure 7 This is a schematic diagram of the rotating component structure of this utility model.

[0021] In the diagram: 101, base; 102, main cone; 103, connecting shaft; 104, tapered bearing; 105, driven cylindrical gear; 106, process spacer; 107, threaded connector; 201, mounting bracket; 202, drive motor; 203, detection gear; 204, gear ring; 301, lower bearing support slide; 302, upper bearing support slide; 303, first guide rail; 304, lower bearing fixing bracket; 305, upper bearing fixing bracket. Frame; 401, needle roller bearing; 402, retaining ring; 403, square plate; 404, threaded ring; 501, second guide rail; 502, sliding seat; 503, rotating motor; 504, round plate; 505, threaded tube; 506, clamping ring; 507, strip plate; 508, strip hole; 601, fixing strip; 602, fixing pin; 603, fixing groove; 604, spring; 701, L-shaped plate; 702, distance sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figures 1-7 The diagram shows an integrated main axle preload shim selection device, including a base 101 and a main cone 102. One end of the main cone 102 is fixedly connected to a connecting shaft 103. The side wall of the connecting shaft 103 is provided with two cone bearings 104. A driven cylindrical gear 105 is provided between the two cone bearings 104. A process spacer 106 is provided between the two cone bearings 104 and the driven cylindrical gear 105. A threaded connector 107 is fixedly connected to the end of the connecting shaft 103 away from the main cone 102. The device also includes a detection component set on the base 101 for detecting the rotational torque shim of the main cone 102 and an installation component set on the base 101 for installing the main cone 102.

[0025] The detection assembly includes a mounting bracket 201 disposed on the base 101. A drive motor 202 is provided on the side of the mounting bracket 201 away from the base 101. The output end of the drive motor 202 is connected to a detection gear 203. A gear ring 204 is meshed with the detection gear 203.

[0026] It should be noted here that: by setting up the detection components, with the cooperation of the installation components, moving components, rotating components and measuring components, the main cone assembly is simply assembled and the loading posture is simulated. Then, the bearing clearance is changed by expanding the upper and lower cone bearings 104, thereby changing the rotational torque of the main cone assembly. During the expansion process, the rotational torque is continuously monitored until the torque reaches the median value of the qualified range specified by the process. The displacement difference between the expansion amount at this time and the initial position is recorded. This displacement difference is considered to be the shim thickness under the qualified rotational torque state. Moreover, the rotational torque is used as the direct evaluation standard in the entire shim detection and selection process, thereby reducing the risk of deviation from the actual results of the purely theoretical size calculation scheme. At the same time, placing the shim selection before assembly reduces the probability of re-disassembly and re-adjustment after assembly due to shim selection during the assembly process.

[0027] Please see Figure 2 , Figure 3 and Figure 5 The mounting components shown in the figure include a lower bearing support slide 301 and an upper bearing support slide 302 disposed on the base 101. The lower bearing support slide 301 is slidably connected to the base 101 via two symmetrically arranged first guide rails 303. The upper bearing support slide 302 is fixedly connected to the base 101 and disposed close to the mounting frame 201. The mounting frame 201 is fixed to the upper bearing support slide 302. The lower bearing support slide 301 and the upper bearing support slide 302 are respectively bolted to a lower bearing fixing frame 304 and an upper bearing fixing frame 305. Two tapered bearings 104 are respectively disposed on the lower bearing fixing frame 304 and the upper bearing fixing frame 305. The upper bearing fixing frame 305 is provided with a moving component for moving the lower bearing fixing frame 304. The base 101 is provided with a measuring component for measuring the moving distance of the lower bearing fixing frame 304.

[0028] It should be noted here that the installation components are configured to facilitate the installation of the main cone assembly.

[0029] Please see Figure 3 and Figure 6 The movable component shown in the figure includes a needle roller bearing 401 disposed on the side of the upper bearing bracket 305 near the lower bearing bracket 304. A retaining ring 402 is connected to the side wall of the needle roller bearing 401. The outer side wall of the retaining ring 402 is connected to the inner side wall of the gear ring 204. A threaded ring 404 is connected to the side of the retaining ring 402 away from the gear ring 204 through a square plate 403. The threaded ring 404 is threadedly connected to the inner wall of the lower bearing bracket 304.

[0030] It should be noted here that the movable component is designed to facilitate the slow movement of the lower bearing fixing bracket 304 along the first guide rail 303 towards the end away from the main cone 102.

[0031] Please see Figure 2 , Figure 3 and Figure 6 The base 101 shown in the figure is provided with a rotating assembly for driving the main cone 102 to rotate. The rotating assembly includes two symmetrically arranged second guide rails 501 fixedly connected to the base 101. The two second guide rails 501 are slidably connected to a sliding seat 502. A rotating motor 503 is provided on the side of the sliding seat 502 away from the base 101. A circular plate 504 is connected to the output end of the rotating motor 503. A threaded tube 505 is fixedly connected to the side of the circular plate 504 away from the rotating motor 503. A pressing ring 506 is connected to the threaded tube 505 through a pressing assembly. Multiple strip plates 507 are fixedly connected to the inner wall of the pressing ring 506. Multiple strip holes 508 are opened on the outer wall of the threaded tube 505. Each strip plate 507 is slidably connected to the strip hole 508.

[0032] It should be noted here that the rotating component is used to drive the main cone assembly components to rotate, thereby monitoring the rotational torque of the main cone 102.

[0033] It is worth noting that the rotational torque of the main cone 102 can be directly measured using a torque sensor.

[0034] Please see Figure 7 The extrusion assembly shown in the figure includes multiple fixing strips 601 fixedly connected to the side wall of the circular plate 504. Each fixing strip 601 is fixedly connected to a fixing pin 602 on the side near the threaded tube 505. The side wall of the clamping ring 506 is provided with multiple fixing grooves 603. Each fixing pin 602 is slidably connected to the fixing groove 603. Multiple springs 604 are fixedly connected to the side of the circular plate 504 near the threaded tube 505. Each spring 604 is located in the strip hole 508. The end of each spring 604 away from the circular plate 504 is connected to the clamping ring 506.

[0035] It should be noted here that: by setting the extrusion component, after the threaded tube 505 and the threaded connector 107 are threaded together, the elastic force of the spring 604 will push the clamping ring 506 against the inner ring of the tapered bearing 104 of the upper bearing fixing bracket 305.

[0036] Working principle: When testing the torque shim, the test components (main cone 102, cone bearing 104, and driven cylindrical gear 105) need to be assembled first. During the assembly process, firstly, the drive motor 202 is in the reset state, the threaded ring 404 is loosened from the lower bearing fixing bracket 304, and then the lower bearing support slide 301 is manually pushed to move backward along the two first guide rails 303 on the base 101, thus reserving operating space for the installation of the test components. After the distance between 01 and the upper bearing support slide 302 is adjusted, the connecting shaft 103 at one end of the main cone 102 can be inserted into the lower bearing support slide 301 and the upper bearing support slide 302. The two cone bearings 104 on the side wall of the connecting shaft 103 are respectively inserted into the lower bearing fixing frame 304 and the upper bearing fixing frame 305. During the installation of the connecting shaft 103, the driven cylindrical gear 105 is installed to the side wall of the connecting shaft 103 using the installation gap, and is isolated from the two cone bearings 104 by the process spacer 106.

[0037] After the components to be tested are loaded in sequence, the lower bearing support slide 301 is manually pushed to bring it close to the threaded ring 404. When the lower bearing fixing bracket 304 on the lower bearing support slide 301 abuts against the threaded ring 404, the drive motor 202 is started to drive the detection gear 203 to rotate. Then, under the meshing transmission action of the detection gear 203 and the gear ring 204, the fixing ring 402 is driven to rotate. During the rotation of the fixing ring 402, the threaded ring 404 is driven to rotate by the connection action of multiple square plates 403. Then, under the threaded meshing transmission action of the threaded ring 404 and the lower bearing fixing bracket 304 and the guiding action of the two first guide rails 303, the threaded ring 404 and the lower bearing fixing bracket 304 are locked and screwed in. During the continuous threaded meshing process of the threaded ring 404 and the lower bearing fixing bracket 304, the driven cylindrical gear 105 will be driven into the middle hollow position between the fixing ring 402 and the multiple square plates 403.

[0038] After the test components are installed, manually push the rotary motor 503 on the sliding seat 502 to move the threaded connector 107 near the connecting shaft 103. When the threaded tube 505 at the output end of the rotary motor 503 abuts against the threaded connector 107, start the rotary motor 503, causing the threaded tube 505 to rotate slowly. Then, under the threaded engagement of the threaded tube 505 and the threaded connector 107, the threaded tube 505 and the threaded connector 107 are tightened together. After the threaded tube 505 is tightened into the threaded connector 107, the elastic force of the spring 604 will push the retaining ring 506 against the inner ring of the tapered bearing 104 of the upper bearing fixing bracket 305. Then, the motor 503 rotates at a constant speed and monitors the torque of the main cone 102 in real time. At the same time, the drive motor 202 rotates slowly, driving the threaded ring 404 to rotate. Then, under the action of threaded meshing transmission and the guiding action of the two first guide rails 303, the lower bearing fixing bracket 304 moves along the first guide rail. 303 slowly moves away from the end of the main cone 102 until the torque of the main cone 102 reaches the specified torque, and the drive motor 202 stops rotating. At this time, the sliding distance of the lower bearing support slide 301 is measured using the measuring component, and this distance is the torque shim thickness. Therefore, by simply assembling the main cone 102 assembly and simulating the loading posture, the bearing clearance is changed by expanding the upper and lower cone bearings 104, thereby changing the torque of the main cone 102 assembly. During the expansion process, the torque is continuously monitored until the torque reaches the midpoint of the qualified range specified by the process. The difference between the expansion amount and the initial position is recorded. This displacement difference is considered to be the shim thickness under the qualified torque state. The entire shim inspection and selection process uses the torque as the direct evaluation standard, thereby reducing the risk of deviation from the actual result of the purely theoretical size calculation scheme. At the same time, placing the shim selection before assembly reduces the probability of reassembly and re-adjustment after assembly caused by shim selection during assembly.

[0039] Example 2

[0040] Please see Figure 5 This embodiment further illustrates Example 1. The measuring component shown in the figure includes an L-shaped plate 701 fixedly connected to the base 101. The L-shaped plate 701 is provided with a distance sensor 702. The detection end of the distance sensor 702 is arranged opposite to the lower bearing support slide 301.

[0041] It should be noted here that the measuring component is used to measure the sliding distance of the lower bearing support slide 301, and this distance is the thickness of the torque shim.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A type of integrated main axle reduction preload selection pad device, comprising: The base (101) and the main cone (102) are provided. A connecting shaft (103) is fixedly connected to one end of the main cone (102). Two cone bearings (104) are provided on the side wall of the connecting shaft (103). A driven cylindrical gear (105) is provided between the two cone bearings (104). A process spacer (106) is provided between the two cone bearings (104) and the driven cylindrical gear (105). A threaded connector (107) is fixedly connected to the end of the connecting shaft (103) away from the main cone (102). The feature is that it further includes: A detection assembly installed on the base (101) for detecting the rotational torque shim of the main cone (102); Mounting assembly provided on base (101) for mounting main cone (102); The detection component includes a mounting bracket (201) disposed on the base (101). A drive motor (202) is provided on the side of the mounting bracket (201) away from the base (101). A detection gear (203) is connected to the output end of the drive motor (202). A gear ring (204) is meshed with the detection gear (203).

2. The axle integral main reducer preload selection pad device according to claim 1, characterized in that: The mounting assembly includes a lower bearing support slide (301) and an upper bearing support slide (302) disposed on the base (101). The lower bearing support slide (301) is slidably connected to the base (101) via two symmetrically arranged first guide rails (303). The upper bearing support slide (302) is fixedly connected to the base (101) and disposed near the mounting frame (201). The mounting frame (201) is fixed to the upper bearing support slide (302). (301) and the upper bearing support slide (302) are respectively connected by bolts to the lower bearing fixing frame (304) and the upper bearing fixing frame (305). The two tapered bearings (104) are respectively installed on the lower bearing fixing frame (304) and the upper bearing fixing frame (305). The upper bearing fixing frame (305) is provided with a moving component for moving the lower bearing fixing frame (304). The base (101) is provided with a measuring component for measuring the moving distance of the lower bearing fixing frame (304).

3. The axle integral main reducer preload selection pad device according to claim 2, characterized in that: The movable component includes a needle roller bearing (401) disposed on the side of the upper bearing bracket (305) near the lower bearing bracket (304). A retaining ring (402) is connected to the side wall of the needle roller bearing (401). The outer side wall of the retaining ring (402) is connected to the inner side wall of the gear ring (204). A threaded ring (404) is connected to the side of the retaining ring (402) away from the gear ring (204) through a square plate (403). The threaded ring (404) is threadedly connected to the inner wall of the lower bearing bracket (304).

4. The axle integral main reducer preload selection pad device according to claim 3, characterized in that: The base (101) is provided with a rotating assembly for driving the main cone (102) to rotate. The rotating assembly includes two symmetrically arranged second guide rails (501) fixedly connected to the base (101). The two second guide rails (501) are slidably connected to a sliding seat (502). A rotating motor (503) is provided on the side of the sliding seat (502) away from the base (101). A circular plate (504) is connected to the output end of the rotating motor (503). A threaded tube (505) is fixedly connected on the side of the circular plate (504) away from the rotating motor (503). A pressing ring (506) is connected to the threaded tube (505) through a pressing assembly. A plurality of strip plates (507) are fixedly connected to the inner wall of the pressing ring (506). A plurality of strip holes (508) are opened on the outer wall of the threaded tube (505). Each strip plate (507) is slidably connected to the strip hole (508).

5. The axle integral main reducer preload selection pad device according to claim 4, characterized in that: The extrusion assembly includes multiple fixing strips (601) fixedly connected to the side wall of the circular plate (504). Each fixing strip (601) is fixedly connected to a fixing pin (602) on the side near the threaded tube (505). The side wall of the clamping ring (506) is provided with multiple fixing grooves (603). Each fixing pin (602) is slidably connected to the fixing groove (603). A multiple springs (604) are fixedly connected to the side of the circular plate (504) near the threaded tube (505). Each spring (604) is located in the strip hole (508). The end of each spring (604) away from the circular plate (504) is connected to the clamping ring (506).

6. The axle integral main reducer preload selection pad device according to claim 5, characterized in that: The measuring component includes an L-shaped plate (701) fixedly connected to the base (101), the L-shaped plate (701) is provided with a distance sensor (702), and the detection end of the distance sensor (702) is arranged opposite to the lower bearing support slide (301).

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