Rear axle running-in table

Abstract

The invention provides a rear axle running-in table, and relates to the field of rear axle running-in. The two fixing parts are installed above the two sides of the table body, encoders are arranged at the outer ends of the fixing parts, contact wheels are installed at the inner ends of the fixing parts, three pulling plates are inserted into the contact wheels in a penetrating mode, the outer ends of the pulling plates are of round-rod-shaped structures, and the outer ends of the pulling plates are welded and fixed to the fixing head parts. When the fixing part fixes the rear axle through the contact wheel, the trigger part firstly makes contact with the end of the rear axle to be stressed, the trigger part drives the transverse rod to move together, the transverse rod drives the moving block and the control groove to move together, and the outer end of the pulling plate slides and moves in the control groove. The fixing head part is driven to generate force for clamping and fixing the end of the rear axle, the rear axle is limited to move outwards, the positioning and fixing effect is improved, vibration generated in the running-in period is reduced, and the problem that in the running-in process, the rear axle still generates large vibration is solved.

Description

Technical Field

[0001] The invention relates to the technical field of rear axle running-in, in particular to a rear axle running-in table. Background Art

[0002] The rear axle of a vehicle refers to the connecting frame at the rear of the car or the device between the body and the wheels. It is composed of two half-bridges, which can implement half-bridge differential movement. It is also used to support the wheels and connect the rear wheels. The rear axle running-in station is mainly used to perform running-in tests on the rear axle assembly of the vehicle to simulate actual working conditions and comprehensively evaluate the performance and durability of the rear axle assembly. Through the running-in test, it can be detected whether the rear axle has a series of problems such as abnormal noise, oil leakage and heat during use, thereby ensuring the quality and safety of the rear axle. The rear axle running-in station is widely used in the automobile manufacturing and maintenance industries, especially for those automobile manufacturers and repairers who need to strictly control the quality and performance of the rear axle. The rear axle running-in table is one of the indispensable equipment. It can simulate real working conditions, conduct efficient running-in tests on the rear axle, and effectively shorten the running-in period. Through precise control systems and sensors, the operating status of the rear axle can be monitored in real time to ensure that the running-in quality meets the standard requirements. However, the common rear axle running-in tables on the market are prone to slight collisions and impact forces when the rear axle is placed, which affects the stability. After the rear axle is placed and fixed, it is necessary to adjust the position with effort to fix the rear axle in the center. When fixing, it is usually fixed by direct contact with the end face, and the fixing strength is effective. However, the rear axle will still produce large vibrations during the running-in process. Summary of the invention

[0003] The disclosed embodiment relates to a rear axle running-in station, in which during the process of controlling the placement of the rear axle, the front and rear sides of the rear axle are placed inside a contact block so that the contact block is initially subjected to force. After the contact block is subjected to force, it moves downward to press the buffer block and the buffer plate downward. With the help of the elasticity of the buffer block and the buffer plate, the downward pressure is eliminated, so that the rear axle falls slowly, avoiding large collisions and impacts, and improving the stability of the falling of the rear axle.

[0004] In a first aspect of the present disclosure, a rear axle running-in table is provided, which specifically includes: a table body; two rotating disks are installed on the top of the table body, an oil pump is provided at the bottom of the rotating disk, and an angle displacement sensor is provided on the top of the rotating disk; a force-bearing component; the force-bearing component is fixed to the top center position of the table body by bolts, and two support members are installed on the top of the force-bearing component, and a buffer block made of rubber material is bonded and fixed on the top of the support member, and the top of the buffer block is in contact with the contact block, and two buffer plates are welded and fixed on the bottom of the contact block, and the bottom of the buffer plate made of elastic metal is an arc structure, and the bottom end of the buffer plate with a long groove inside is inclined; a fixing component; the two fixing components are installed On the upper part of both sides of the platform body, an encoder is provided at the outer end of the fixed component, a contact wheel is installed at the inner end of the fixed component, three pull plates are inserted through the interior of the contact wheel, the outer end of the pull plate is a round rod structure, the outer end of the pull plate is welded and fixed to the fixed head component, and an anti-slip groove is provided on the inner side of the L-shaped fixed head component; a flip arm structure; the bottom end of the flip arm structure is connected to the support rod through a rotating shaft, and the support rod is welded and fixed to the side of the platform body, the flip arm structure is installed with a lower pressure block structure that can move up and down freely through the pressure head structure and auxiliary parts, and a positioning block is fixed at each end of the bottom of the lower pressure block structure, and the bottom end of the positioning block is an inclined structure and fits with the inclined surface of the rear axle.

[0005] Furthermore, a rear axle is installed at the top of the platform, a motor is provided at the bottom of the side of the platform, the motor is connected to the rotating rod through a transmission belt, a torque sensor is installed outside the rotating rod, and a hydraulic station is installed on the side of the platform.

[0006] Furthermore, a handwheel is installed at the top of the force-bearing component through a threaded hole, and a guide component is provided at the front end of the platform body. The guide component is inserted into the support member at the front end, and the outer side of the support member at the front end is connected to the handwheel through a rotating shaft; the bottom of the support member at the rear end is welded and fixed to the top of the force-bearing component, and the top of the support member is in sliding contact with the bottom of the buffer plate, and a slide groove is respectively opened on both sides of each support member; a sliding component is slidably inserted into the interior of the slide groove, and the top of the sliding component is welded and fixed to the contact block, and the rear axle is embedded in the interior of the contact block.

[0007] Furthermore, three guide plate components are welded and fixed to the side of the contact wheel, a sliding rod with a T-shaped shaft structure is welded and fixed to the inner end of the fixed head component, a spring is mounted on the outside of the sliding rod, and the sliding rod is inserted into the interior of the guide plate component and can be pulled freely; three cross bars are inserted through the interior of the contact wheel, the inner ends of the three cross bars are connected to the trigger component of the circular structure, the outer ends of the cross bars are welded and fixed to the moving block of the U-shaped structure, a control groove is opened inside the moving block, and the outer end of the pull plate is inserted into the control groove and slides inside.

[0008] Furthermore, the rear end of the flip arm structure is connected to the oil cylinder through a rotating shaft, the bottom of the oil cylinder is connected to the support rod, and the front end of the flip arm structure is equipped with a pressure head structure through a rotating shaft; the bottom of the pressure head structure is welded and fixed to the auxiliary part, and an L-shaped control block is welded and fixed on both sides of the top of the auxiliary part; two baffle rod structures are welded and fixed to the outer ends of the control block and the pressure head structure, the inner side of the baffle rod structure is in contact with the lower pressure block structure, a guide rod is fixed to the top of the lower pressure block structure, a spring is mounted on the outside of the guide rod, the guide rod passes through the control block, and the top of the spring is in contact with the bottom of the control block.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] In the process of controlling the placement of the rear axle, the front and rear sides of the rear axle are placed inside the contact block so that the contact block is initially subjected to force. After the contact block is subjected to force, it moves downward to press the buffer block and the buffer plate downward. With the help of the elasticity of the buffer block and the buffer plate, the downward pressure is eliminated, so that the rear axle falls slowly, avoiding large collisions and impacts, and improving the stability of the rear axle's fall.

[0011] When pressing down to fix the rear axle, the oil cylinder extends, controlling the flip arm structure to flip, causing the pressure head structure to move downward, allowing the bottom of the positioning block to contact the inclined position of the side of the rear axle, and then continue to press down to compress the spring. Since the contact surface between the positioning block and the rear axle is an inclined structure, the rear axle can be controlled to automatically be pressed down and fixed in the center, thereby improving the positioning and fixing effect and eliminating the need for laborious centering adjustments later.

[0012] When the fixing component fixes the rear axle through the contact wheel, the trigger component first contacts the end of the rear axle and is subjected to force, so that the trigger component drives the cross bar to move together, and the cross bar drives the moving block and the control groove to move together, so that the outer end of the pull plate slides and moves inside the control groove. Since the control groove is inclined, it can control the pull plate and the fixed head component to move inward, drive the fixed head component to generate a force to clamp and fix the end of the rear axle, limit the outward movement of the rear axle, improve the positioning and fixing effect, and reduce the vibration generated during the running-in period. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0014] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0015] In the attached picture:

[0016] Figure 1 A three-dimensional structural schematic diagram of the present application is shown;

[0017] Figure 2The exploded three-dimensional structure diagram of the present application is shown;

[0018] Figure 3 A schematic diagram of the exploded bottom-up structure of the present application is shown;

[0019] Figure 4 The schematic diagram of the exploded three-dimensional structure of the platform of the present application is shown;

[0020] Figure 5 A schematic diagram of the exploded three-dimensional structure of the force-bearing component of the present application is shown;

[0021] Figure 6 A schematic diagram of the exploded three-dimensional structure of the fixing component of the present application is shown;

[0022] Figure 7 A schematic diagram of the bottom-up structure of the fixed component of the present application is shown;

[0023] Figure 8 A schematic diagram of the exploded three-dimensional structure of the flip arm structure of the present application is shown.

[0024] Reference numerals list

[0025] 1. Platform; 101. Rotating plate; 102. Angle displacement sensor; 103. Motor; 104. Torque sensor; 105. Hydraulic station;

[0026] 2. Force-bearing component; 201. Hand wheel; 202. Guide component; 203. Support member; 204. Slide; 205. Buffer block; 206. Sliding component; 207. Contact block; 208. Buffer plate;

[0027] 3. Fixed component; 301. Contact wheel; 302. Guide plate component; 303. Pull plate; 304. Fixed head component; 305. Sliding rod; 306. Trigger component; 307. Moving block; 308. Control slot;

[0028] 4. Flip arm structure; 401. Oil cylinder; 402. Pressure head structure; 403. Auxiliary parts; 404. Control block; 405. Stop rod structure; 406. Guide rod; 407. Lower pressure block structure; 408. Positioning block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 8 :

[0031] The present invention proposes a rear axle running-in platform, comprising: a platform body 1; two rotating disks 101 are installed on the top of the platform body 1, the bottom of the rotating disk 101 is provided with an oil pump, and an angle displacement sensor 102 is provided on the top of the rotating disk 101; a force-bearing component 2; the force-bearing component 2 is fixed to the top center position of the platform body 1 by bolts, and two supporting members 203 are installed on the top of the force-bearing component 2, and a buffer block 205 made of rubber material is bonded and fixed on the top of the supporting member 203, and the top of the buffer block 205 contacts with a contact block 207, and the contact block 207 is There are two buffer plates 208 welded and fixed at the bottom. The bottom of the buffer plate 208 made of elastic metal material is an arc-shaped structure. The bottom end of the buffer plate 208 with a long groove inside is tilted, so that after the rear axle is placed inside the contact block 207, the contact block 207 presses down the buffer plate 208 and the buffer block 205. With the help of the elasticity of the two, the rear axle falls slowly to avoid the impact force after the rear axle is placed; fixed component 3; two fixed components 3 are installed on both sides of the platform 1, and the outer end of the fixed component 3 is provided with an encoder, and the inner end of the fixed component 3 is provided with a A contact wheel 301 is provided, and three pull plates 303 are inserted into the interior of the contact wheel 301. The outer end of the pull plate 303 is a round rod structure, and the outer end of the pull plate 303 is welded and fixed to the fixed head component 304. The inner side of the L-shaped fixed head component 304 is provided with an anti-skid groove, so that after the trigger component 306 contacts the rear axle, the pull plate 303 and the fixed head component 304 are controlled to move inwards for clamping, thereby improving the clamping and fixing effect of the rear axle and avoiding large shaking of the rear axle during running-in; the flip arm structure 4; the flip arm structure 4 The bottom end is connected to the support rod through a rotating shaft, and the support rod is welded and fixed to the side of the platform body 1. The flip arm structure 4 is equipped with a lower pressure block structure 407 that can move freely up and down through the pressure head structure 402 and the auxiliary part 403. A positioning block 408 is fixed to each of the two ends of the bottom of the lower pressure block structure 407. The bottom end of the positioning block 408 is an inclined structure and fits with the inclined surface of the rear axle. Since the fitting surface is an inclined structure, it can generate a force to control the center positioning of the rear axle, and there is no need to adjust the position of the rear axle later, thereby improving the positioning efficiency.

[0032] In the present disclosure, Figure 4 As shown, a rear axle is installed on the top of the platform 1, and a motor 103 is provided at the bottom of the side of the platform 1. The motor 103 is connected to the rotating rod through a transmission belt. A torque sensor 104 is installed on the outside of the rotating rod to monitor the torque in real time. A hydraulic station 105 is installed on the side of the platform 1 to provide hydraulic power for the equipment.

[0033] In the present disclosure, Figure 2 and Figure 5As shown, a hand wheel 201 is installed at the top of the force-bearing component 2 through a threaded hole. After the hand wheel 201 rotates, the support member 203 at the front end is controlled to move, which is convenient for adjusting the position. A guide component 202 is provided at the front end of the platform body 1. The guide component 202 is inserted into the support member 203 at the front end to control the guided sliding displacement of the support member 203 at the front end. The outer side of the support member 203 at the front end is connected to the hand wheel 201 through a rotating shaft; the bottom of the support member 203 at the rear end is welded and fixed to the top of the force-bearing component 2, and the top of the support member 203 is in sliding contact with the bottom of the buffer plate 208. A slide groove 204 is respectively opened on both sides of each support member 203 to guide the displacement of the sliding component 206 and drive the contact block 207 to guide the movement together; a sliding component 206 is slidably inserted into the interior of the slide groove 204, and the top of the sliding component 206 is welded and fixed to the contact block 207, and the rear axle is embedded in the interior of the contact block 207 to control the positioning and installation of the rear axle.

[0034] In the present disclosure, Figure 6 and Figure 7 As shown, three guide plate components 302 are welded and fixed on the side of the contact wheel 301 to control the guiding displacement of the sliding rod 305. The sliding rod 305 with a T-shaped shaft structure is welded and fixed on the inner end of the fixed head component 304. A spring is sleeved on the outside of the sliding rod 305. After the trigger component 306 is separated from the contact with the rear axle, the spring pushes the sliding rod 305 and the fixed head component 304 to reset. The sliding rod 305 is inserted into the inside of the guide plate component 302 and can be pulled freely. Three cross bars are inserted through the inside of the contact wheel 301. The inner ends of the three cross bars are connected to the trigger structure of the annular structure. Component 306 is connected, so that after the rear axle is fixed, the trigger component 306 is displaced by force, pushing the cross bar to move outward, and the outer end of the cross bar is welded and fixed to the moving block 307 of the U-shaped structure. A control groove 308 is opened inside the moving block 307, and the outer end of the pull plate 303 is inserted into the control groove 308 to slide. After the moving block 307 moves horizontally, the outer end of the pull plate 303 slides inside the control groove 308, controlling the fixing head component 304 to clamp and fix the rear axle, thereby improving the fixing effect of the rear axle and avoiding large vibrations during the running-in of the rear axle.

[0035] In the present disclosure, Figure 3 and Figure 8As shown, the rear end of the flip arm structure 4 is connected to the cylinder 401 through a rotating shaft, and is pushed by the cylinder 401 to flip. The bottom of the cylinder 401 is connected to the support rod. The front end of the flip arm structure 4 is installed with a pressure head structure 402 through a rotating shaft, which automatically flips to generate downward pressure and firmly presses down and fixes the rear axle; the bottom of the pressure head structure 402 is welded and fixed to the auxiliary part 403, and an L-shaped control block 404 is welded and fixed on both sides of the top of the auxiliary part 403 to control the guiding displacement of the guide rod 406; two baffle rod structures 405 are welded and fixed to the outer ends of the control block 404 and the pressure head structure 402, and the inner side of the baffle rod structure 405 contacts with the lower pressure block structure 407 to prevent the lower pressure block structure 407 from tilting or displacing outward, and a guide rod 406 is fixed to the top of the lower pressure block structure 407, and a spring is sheathed on the outside of the guide rod 406. The guide rod 406 passes through the control block 404, and the top of the spring contacts with the bottom of the control block 404.

[0036] The working principle of this embodiment is as follows: the rear axle assembly is manually hoisted above the rear axle running-in table and pre-installed to the specified position. After the rear axle is placed, the bottom of the front and rear ends of the rear axle are positioned and contacted with the contact block 207, and the contact block 207 is forced to move downward. The bottom of the contact block 207 presses down the buffer plate 208 and the buffer block 205, and eliminates the collision force by virtue of the elasticity of the two. Then the oil cylinder 401 is controlled to operate, and the oil cylinder 401 controls the flip arm structure 4 to flip, so that the pressure head structure 402 is forced to press downward, so that the bottom inner side of the lower pressure block structure 407 contacts the inclined surface position of the rear axle, and the downward pressure force is used to generate a centering positioning force for the rear axle, and there is no need to adjust the position of the rear axle laboriously later, so that the left and right ends of the rear axle are aligned with the contact wheel 301, and then the fixing component 3 is controlled to operate, so that the contact wheel 301 moves laterally to fix the rear axle, so that the trigger component 306 first contacts the outer end of the rear axle, so that the trigger component 306 drives the cross bar and the moving block 307 The control slot 308 is tilted to control the pull plate 303 and the fixed head component 304 to clamp the end of the rear axle inwards, thereby reducing the vibration caused by the later running-in. Then, the barcode information of the rear axle assembly is scanned with a barcode scanner to read the rear axle information. Then, the equipment is started. The equipment automatically corrects the rear axle assembly, and then automatically injects gear oil or running-in oil, and automatically performs forward and reverse loading running-in of the rear axle assembly. The running-in is divided into four stages: low speed, medium speed, high speed and reverse. The operating speed, time, process program, etc. can be set by software, and the noise and vibration of the rear axle are detected synchronously under forward and reverse conditions. In addition, the equipment needs to detect and determine the speed ratio of the rear axle assembly and the starting torque of the rear axle assembly, so as to conveniently complete the running-in of the rear axle. After the running-in is completed, the motor 103 stops rotating, the gear oil / running-in oil is extracted, the fixed structure is automatically loosened, and the equipment is manually hoisted offline.

Claims

1. Rear axle running-in station, characterized in that: include: A platform (1); two rotating disks (101) are installed on the top of the platform (1), the bottom of the rotating disks (101) is provided with an oil pump, and an angle displacement sensor (102) is provided on the top of the rotating disks (101); a force-bearing component (2); the force-bearing component (2) is fixed to the top center position of the platform (1) by bolts, and two support members (203) are installed on the top of the force-bearing component (2), and a buffer block (205) made of rubber material is bonded and fixed on the top of the support member (203), and the top of the buffer block (205) is in contact with a contact block (207), and two buffer plates (208) are welded and fixed on the bottom of the contact block (207), and the bottom of the buffer plate (208) made of elastic metal material is an arc-shaped structure, and the bottom end of the buffer plate (208) with a long groove inside is inclined; a fixing component (3); the two fixing components (3) are installed on both sides of the platform (1) At the top, an encoder is provided at the outer end of the fixed component (3), a contact wheel (301) is installed at the inner end of the fixed component (3), three pull plates (303) are inserted through the interior of the contact wheel (301), the outer end of the pull plate (303) is a round rod structure, the outer end of the pull plate (303) is welded and fixed to the fixed head component (304), and the inner side of the L-shaped fixed head component (304) is provided with an anti-slip groove; a flip arm structure (4); the bottom end of the flip arm structure (4) is connected to the support rod through a rotating shaft, and the support rod is welded and fixed to the side of the platform (1), and the flip arm structure (4) is installed with a lower pressure block structure (407) that can move freely up and down through a pressure head structure (402) and an auxiliary part (403), and a positioning block (408) is fixed at both ends of the bottom of the lower pressure block structure (407), and the bottom end of the positioning block (408) is an inclined structure and fits with the inclined surface of the rear axle.

2. The rear axle running-in station according to claim 1, characterized in that: A rear axle is installed at the top of the platform (1), a motor (103) is provided at the bottom of the side of the platform (1), the motor (103) is connected to a rotating rod via a transmission belt, a torque sensor (104) is installed outside the rotating rod, and a hydraulic station (105) is installed on the side of the platform (1).

3. The rear axle running-in station according to claim 2, characterized in that: A hand wheel (201) is installed at the top end of the force bearing component (2) through a threaded hole, and a guide component (202) is provided at the front end of the platform body (1). The guide component (202) is inserted into the interior of a support member (203) at the front end, and the outer side of the support member (203) at the front end is connected to the hand wheel (201) through a rotating shaft.

4. The rear axle running-in station according to claim 3, characterized in that: The bottom of the support member (203) at the rear end is welded and fixed to the top of the force-bearing component (2), the top of the support member (203) is in sliding contact with the bottom of the buffer plate (208), and a sliding groove (204) is respectively opened on both sides of each support member (203).

5. The rear axle running-in station according to claim 4, characterized in that: A sliding component (206) is slidably inserted into the interior of the sliding groove (204), the top end of the sliding component (206) is welded and fixed to a contact block (207), and a rear axle is embedded in the interior of the contact block (207).

6. The rear axle running-in station according to claim 5, characterized in that: Three guide plate components (302) are welded and fixed to the side of the contact wheel (301), a sliding rod (305) with a T-shaped shaft structure is welded and fixed to the inner end of the fixed head component (304), a spring is sleeved on the outside of the sliding rod (305), and the sliding rod (305) is inserted into the inside of the guide plate component (302) and can be freely pulled out.

7. The rear axle running-in station according to claim 6, characterized in that: Three cross bars are inserted through the interior of the contact wheel (301), the inner ends of the three cross bars are connected to the trigger component (306) of the annular structure, the outer ends of the cross bars are welded and fixed to the moving block (307) of the U-shaped structure, a control groove (308) is opened through the interior of the moving block (307), and the outer end of the pull plate (303) is inserted into the control groove (308) to slide inside.

8. The rear axle running-in station according to claim 7, characterized in that: The rear end of the flip arm structure (4) is connected to the oil cylinder (401) via a rotating shaft, the bottom of the oil cylinder (401) is connected to the support rod, and the front end of the flip arm structure (4) is installed with a pressure head structure (402) via a rotating shaft.

9. The rear axle running-in station according to claim 8, characterized in that: The bottom of the pressure head structure (402) is welded and fixed to the auxiliary component (403), and an L-shaped control block (404) is welded and fixed to both sides of the top of the auxiliary component (403).

10. The rear axle running-in station according to claim 9, characterized in that: Two baffle rod structures (405) are welded and fixed to the outer ends of the control block (404) and the pressure head structure (402), the inner side of the baffle rod structure (405) is in contact with the lower pressure block structure (407), the top end of the lower pressure block structure (407) is fixed with a guide rod (406), the outside of the guide rod (406) is sleeved with a spring, the guide rod (406) passes through the control block (404), and the top end of the spring is in contact with the bottom of the control block (404).

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