Steering gear dust cover testing device

Abstract

The utility model discloses a steering gear dust cover testing device, which belongs to the technical field of quality detection and comprises a supporting table, a protective shell is fixed at the top of the supporting table, a servo motor is fixed on the back of the protective shell, and an output shaft of the servo motor penetrates into an inner cavity of the protective shell and is fixedly provided with a fixed rotating plate. A connecting piece is mounted at the end, away from the servo motor, of the fixed rotating plate through a lantern ring, a mounting column is movably arranged in an inner cavity of the protective shell, and a mounting pipe capable of moving up and down penetrates through the center of the supporting table. Therefore, the amplitude that the servo motor drives the mounting column to move up and down in a reciprocating manner is adjusted, dust covers can be conveniently mounted on equipment according to dust covers of different models, and the problems that the dust covers of different models are damaged due to low compatibility of the equipment during testing, the real durability of the dust covers cannot be tested, and the accuracy of a test result is affected are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of quality detection, in particular to a steering gear dust cover testing device. Background Art

[0002] The function of the dust cover test is to appropriately transform the steering torque and steering angle from the steering wheel, and then output it to the steering rod mechanism to make the car steer. Therefore, the dust cover test is essentially a reduction transmission device. There are many types of dust cover tests, such as rack and pinion type, recirculating ball type, worm crank pin type, power dust cover test, etc.

[0003] The dust cover test needs to be used with a dust cover to prevent dust from adhering to the surface. The dust cover is usually made of rubber and processed. The dust cover used in the dust cover test is designed as a retractable structure according to the dust cover test characteristics. After the dust cover is processed, the performance needs to be measured to verify the durability. The traditional test device uses a reciprocating motion device to quickly test the dust cover. Since the dust cover needs to be matched with the dust cover test, there are many types of dust covers. The reciprocating motion state of the traditional dust cover test device is a fixed structure, which cannot be adjusted according to the size of the dust cover, resulting in low device compatibility. Utility Model Content

[0004] The purpose of the utility model is to provide a steering gear dust cover testing device, which connects the connecting piece and the collar by tightening bolts, and can also adjust the actual working length of the connecting piece, thereby adjusting the range of up and down movement of the mounting column driven by the servo motor, and adjusting the reciprocating movement distance according to different models of dust covers to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steering gear dust cover testing device, comprising a support platform, a protective shell is fixed on the top of the support platform, a servo motor is fixed on the back of the protective shell, the output shaft of the servo motor passes through the inner cavity of the protective shell and is fixed with a fixed rotating plate, the end of the fixed rotating plate away from the servo motor is installed with a connecting piece through a collar, the inner cavity of the protective shell is movably provided with a mounting column, a mounting tube that can move up and down is passed through the center of the support platform, a clamping seat for clamping and fixing the two ends of the dust cover is fixed on the outer side of the mounting tube and the mounting column, one end of the connecting piece is movably connected to the mounting column through a bearing, the outer side of the collar is threadedly connected with a fastening bolt, one end of the fastening bolt passes through the inner cavity of the collar and locks the connecting piece.

[0006] Preferably, a fixing tube is fixed to the bottom of the support platform, the mounting tube is located in the inner cavity of the fixing tube, an adjusting bolt is threadedly connected to the outer side of the fixing tube, and one end of the adjusting bolt passes through the inner cavity of the fixing tube and fits against the outer wall of the mounting tube.

[0007] Preferably, a limiting tube is fixed on the top of the inner cavity of the protective shell, the mounting column is located in the inner cavity of the limiting tube, and a guide groove for the connecting piece to move up and down is provided on the outer side of the limiting tube.

[0008] Preferably, the clamping seat includes a fixed seat fixed to the outside of the mounting column and the mounting tube, and a movable seat is sleeved on the outside of the mounting tube and the mounting column. Tensioning bolts are fixed around one side of the movable seat, and the end of the tensioning bolt away from the movable seat passes through the fixed seat and is threadedly connected to a limiting nut.

[0009] Preferably, a support column is inserted into the inner cavity of the mounting tube, through grooves are opened on both sides of the mounting tube, a fixing column passing through the through groove is fixed to the outer side of the support column, two groups of support springs are fixed to the outer side of the mounting tube, and one end of the support spring is sleeved on the outer side of the fixing column.

[0010] Preferably, a connecting column is fixed to a side of the collar away from the limiting tube, and an end of the connecting column away from the collar is rotatably connected to the fixed rotating plate via a bearing.

[0011] Preferably, a door is hingedly connected to the front of the protective shell via a hinge, and a controller electrically connected to the servo motor is provided on the door.

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

[0013] 1. The utility model adjusts the position of the collar on the connecting piece by tightening the bolt, thereby adjusting the amplitude of the up and down reciprocating motion of the mounting column driven by the servo motor, so as to facilitate the installation of the dust cover on the equipment according to different types of dust covers, and avoids the damage of different types of dust covers due to low equipment compatibility during testing, and the real durability of the dust cover cannot be measured, which affects the accuracy of the test results.

[0014] 2. The utility model supports the support column through the support spring, thereby ensuring that the dust cover under test will not be turned outward due to squeezing during the up and down movement of the installation column, resulting in changes in its own structure and affecting the integrity of the dust cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the protective shell of the utility model;

[0018] Figure 4 It is a schematic diagram of the split three-dimensional structure of the fixed rotating plate and the connecting piece of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the clamping seat of the utility model;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the installation pipe of the utility model.

[0021] Numbers in the figure: 1. Support platform; 2. Protective shell; 3. Servo motor; 4. Fixed rotating plate; 5. Ring; 6. Connector; 7. Mounting column; 8. Mounting tube; 9. Clamping seat; 91. Fixed seat; 92. Movable seat; 93. Tension bolt; 94. Limit nut; 10. Fastening bolt; 11. Fixed tube; 12. Adjusting bolt; 13. Limiting tube; 14. Guide groove; 15. Support column; 16. Fixed column; 17. Support spring; 18. Connecting column; 19. Box door. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figures 1 to 6 A steering gear dust cover testing device shown in the figure comprises a support platform 1, a protective shell 2 is fixed on the top of the support platform 1, a servo motor 3 is fixed on the back of the protective shell 2, the output shaft of the servo motor 3 passes through the inner cavity of the protective shell 2 and is fixed with a fixed rotating plate 4, the end of the fixed rotating plate 4 away from the servo motor 3 is installed with a connecting piece 6 through a collar 5, the inner cavity of the protective shell 2 is movably provided with a mounting column 7, a mounting tube 8 that can move up and down passes through the center of the support platform 1, and a clamping seat 9 for clamping and fixing the two ends of the dust cover is fixed on the outer side of the mounting tube 8 and the mounting column 7, one end of the connecting piece 6 is movably connected to the mounting column 7 through a bearing, and a fastening bolt 10 is threadedly connected to the outer side of the collar 5, and one end of the fastening bolt 10 passes through the inner cavity of the collar 5 and locks the connecting piece 6;

[0024] By tightening the bolt 10, the position of the collar 5 on the connector 6 is adjusted, thereby adjusting the amplitude of the up and down reciprocating motion of the mounting column 7 driven by the servo motor 3, so as to facilitate the installation of the dust cover on the equipment according to different types of dust covers, and avoid damage to different types of dust covers due to low equipment compatibility during testing, making it impossible to measure the true durability of the dust cover, and affecting the accuracy of the test results.

[0025] A fixing tube 11 is fixed to the bottom of the support platform 1, and the mounting tube 8 is located in the inner cavity of the fixing tube 11. An adjusting bolt 12 is threadedly connected to the outer side of the fixing tube 11. One end of the adjusting bolt 12 penetrates into the inner cavity of the fixing tube 11 and fits against the outer wall of the mounting tube 8. The mounting tube 8 can be fixed in the fixing tube 11 by the adjusting bolt 12, which not only fixes the mounting tube 8, but also adjusts the height of the mounting tube 8, facilitates the adjustment of the distance between the upper and lower sets of clamping seats 9, and can be flexibly adjusted according to the length of the dust cover.

[0026] A limiting tube 13 is fixed to the top of the inner cavity of the protective shell 2, and the mounting column 7 is located in the inner cavity of the limiting tube 13. A guide groove 14 is provided on the outer side of the limiting tube 13 for the connecting member 6 to move up and down. The setting of the limiting tube 13 ensures the stability of the mounting column 7 and prevents the mounting column 7 from shaking in the protective shell 2 and affecting the accuracy of the test.

[0027] The clamping seat 9 includes a fixed seat 91 fixed to the outside of the mounting column 7 and the mounting tube 8, and a movable seat 92 is sleeved on the outside of the mounting tube 8 and the mounting column 7. Tension bolts 93 are fixed on all sides of one side of the movable seat 92. The end of the tension bolt 93 away from the movable seat 92 passes through the fixed seat 91 and is threadedly connected to a limiting nut 94. By limiting the structure of the clamping seat 9, it is convenient to use the movable seat 92 and the fixed seat 91 to clamp the two ends of the dust cover, thereby preventing the dust cover from being unable to move with the mounting column 7 and the mounting tube 8 during the telescopic test.

[0028] A support column 15 is inserted into the inner cavity of the mounting tube 8, and through grooves are opened on both sides of the mounting tube 8. A fixing column 16 that passes through the through groove is fixed to the outer side of the support column 15, and two groups of support springs 17 are fixed to the outer side of the mounting tube 8. One end of the support spring 17 is sleeved on the outer side of the fixing column 16. The support column 15 can be supported by the support spring 17, so that the support column 15 passes through the inside of the dust cover to be tested, and supports the dust cover from the inside of the dust cover to prevent the dust cover from folding outwards when being compressed due to lack of corresponding supporting structure, thereby affecting the stability of the structure.

[0029] A connecting column 18 is fixed on the side of the collar 5 away from the limiting tube 13. The end of the connecting column 18 away from the collar 5 is rotatably connected to the fixed rotating plate 4 through a bearing. The collar 5 and the fixed rotating plate 4 can be movably connected through the connecting column 18 to ensure that the fixed rotating plate 4 drives the connecting part 6 to move the mounting column 7 up and down under the drive of the servo motor 3.

[0030] The front of the protective shell 2 is hinged with a box door 19 through a hinge. The box door 19 is provided with a controller electrically connected to the servo motor 3. Through the setting of the box door 19, the dust cover to be tested can be conveniently placed inside the protective shell 2, and then the servo motor 3 can be controlled by the controller.

[0031] During specific use, press the support column 15 to shrink the support column 15 into the mounting tube 8, then place the dust cover to be tested between the mounting column 7 and the mounting tube 8, and use the clamping seat 9 to fix the end of the dust cover, adjust the position of the ring 5 on the connecting piece 6 according to the size of the dust cover, and then use the fastening bolt 10 to lock the ring 5 and the connecting piece 6, use the controller to drive the servo motor 3, the servo motor 3 drives the fixed rotating plate 4 to rotate, and then the fixed rotating plate 4 drives the ring 5 to rotate synchronously through the connecting column 18, and then the ring 5 drives the connecting piece 6 to move up and down under the restriction of the limit tube 13, so as to stretch and compress the dust cover, and test the durability of the dust cover, the support column 15 is inserted into the interior of the dust cover under the support of the support spring 17, and supports the dust cover from the inside when it is compressed to prevent the dust cover from folding outward and being damaged.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steering gear dust cover testing device, comprising a support platform (1), characterized in that: A protective shell (2) is fixed on the top of the support platform (1), a servo motor (3) is fixed on the back of the protective shell (2), the output shaft of the servo motor (3) passes through the inner cavity of the protective shell (2) and is fixed with a fixed rotating plate (4), the end of the fixed rotating plate (4) away from the servo motor (3) is installed with a connecting piece (6) through a collar (5), the inner cavity of the protective shell (2) is movably provided with a mounting column (7), a mounting tube (8) that can move up and down is passed through the center of the support platform (1), the outer side of the mounting tube (8) and the mounting column (7) is fixed with a clamping seat (9) for clamping and fixing the two ends of the dust cover, one end of the connecting piece (6) is movably connected to the mounting column (7) through a bearing, the outer side of the collar (5) is threadedly connected with a fastening bolt (10), one end of the fastening bolt (10) passes through the inner cavity of the collar (5) and locks the connecting piece (6).

2. A steering gear dust cover testing device according to claim 1, characterized in that: A fixing tube (11) is fixed at the bottom of the support platform (1), the mounting tube (8) is located in the inner cavity of the fixing tube (11), an adjusting bolt (12) is threadedly connected to the outer side of the fixing tube (11), and one end of the adjusting bolt (12) passes through the inner cavity of the fixing tube (11) and fits against the outer wall of the mounting tube (8).

3. A steering gear dust cover testing device according to claim 1, characterized in that: A limiting tube (13) is fixed at the top of the inner cavity of the protective shell (2), the mounting column (7) is located in the inner cavity of the limiting tube (13), and a guide groove (14) for the connecting member (6) to move up and down is provided on the outer side of the limiting tube (13).

4. A steering gear dust cover testing device according to claim 1, characterized in that: The clamping seat (9) comprises a fixed seat (91) fixed to the outside of the mounting column (7) and the mounting tube (8); the outside of the mounting tube (8) and the mounting column (7) are provided with a movable seat (92); the movable seat (92) has tightening bolts (93) fixed around one side thereof; the end of the tightening bolt (93) away from the movable seat (92) passes through the fixed seat (91) and is threadedly connected to a limiting nut (94).

5. A steering gear dust cover testing device according to claim 1, characterized in that: A support column (15) is inserted into the inner cavity of the mounting tube (8), through grooves are provided on both sides of the mounting tube (8), a fixing column (16) penetrating the through groove is fixed to the outer side of the support column (15), and two groups of support springs (17) are fixed to the outer side of the mounting tube (8), and one end of the support spring (17) is sleeved on the outer side of the fixing column (16).

6. A steering gear dust cover testing device according to claim 1, characterized in that: A connecting column (18) is fixed to the side of the collar (5) away from the limiting tube (13), and one end of the connecting column (18) away from the collar (5) is rotatably connected to the fixed rotating plate (4) via a bearing.

7. A steering gear dust cover testing device according to claim 1, characterized in that: The front of the protective shell (2) is hinged with a box door (19) via a hinge, and the box door (19) is provided with a controller electrically connected to the servo motor (3).

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