Anti-rotation mechanism for driving rod of hydraulic loading device

Abstract

The utility model discloses an anti-rotation mechanism for a driving rod of a hydraulic loading device, relates to the field of automobile steering systems, and aims to solve the problems that a test piece rotates along with the driving rod and the angle is inconvenient to adjust due to the rotation of the driving rod in the working process of the hydraulic loading device in the prior art. A rotating mechanism is arranged on the right side of the first supporting seat, a rotating disc is connected into the rotating mechanism, a fixing hole is formed in the rotating disc, a fixing mechanism is arranged on the rotating disc, a V-shaped transmission mechanism is arranged on a driving rod on the right side of the rotating mechanism, a force measuring sensor is arranged at the end of the driving rod, and the other side of the force measuring sensor is connected with an output shaft of a hydraulic cylinder. According to the utility model, the rotary knob on the fixing mechanism enables the fixing block and the rotary disc to generate friction so as to lock the rotary disc, the V-shaped transmission mechanism is used for fixing, so that the problem of following rotation is solved, the angle adjustment is realized through the rotating mechanism, and the adjusted or tested data can be directly displayed on the display so as to be convenient to observe.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile steering systems, in particular to an anti-rotation mechanism for a driving rod of a hydraulic loading device. Background Art

[0002] With the development of the automobile industry, customers have higher and higher requirements for products. The ball rod is a key component connecting the steering gear and the chassis arm in the automobile steering system. Good performance, high stability and durability are the goals pursued by steering gear companies. It is very necessary to conduct bench tests simulating the actual vehicle loading status during the product design stage. Large-load and high-frequency durability tests on ball rod assemblies can simulate the operating status of the actual vehicle under complex road conditions such as bumps and collisions.

[0003] The driving rod of the currently commonly used hydraulic loading device will rotate under high load and high frequency conditions. This will cause the test piece under specific conditions to rotate during the test, resulting in interference. Slight rotation will affect the test results, and in severe cases, it will cause breakage, and tests at different angles cannot be performed. Therefore, it is necessary to improve the existing device. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a hydraulic loading device drive rod anti-rotation mechanism, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the utility model discloses a hydraulic loading device driving rod anti-rotation mechanism, which adopts a technical solution comprising a bottom plate and a ball head pull rod. The bottom plate is provided with a first support seat, the first support seat is fixedly connected to a cone sleeve base, a rotating mechanism is provided on the right side of the first support seat, the rotating mechanism comprises a shell, the shell can be split into two pieces, a first hole is provided in the middle of the shell, a second hole is provided below the first hole, a guide hole is provided above the shell, a threaded hole is provided between the two guide holes, a first bearing is fixedly connected in the first hole, the inner diameter of the first bearing is connected to a guide block, a driving rod is slidably connected inside the guide block, the outer diameter of the first bearing is connected to the inner diameter of the second bearing, the outer diameter of the second bearing is connected to a turntable, a fixing hole is provided on the turntable, a fixing mechanism is provided on the turntable, a V-shaped transmission mechanism is provided on the driving rod on the right side of the rotating mechanism, the V-shaped transmission mechanism comprises a V-shaped block and a fixed shaft, the V-shaped block is fixed to the driving rod, the fixed shaft is slidably connected to the fixing hole, a force sensor is provided at the end of the driving rod, the other side of the force sensor is connected to the output shaft of the hydraulic cylinder, the hydraulic cylinder is fixed to the bottom plate through the second support seat, and the other end of the driving rod is connected to the tooling through a flange.

[0006] As a preferred technical solution of the utility model, an auxiliary roller is rotatably connected in the second hole, and the auxiliary roller is tangent to the turntable and is used to support and assist the rotation of the turntable.

[0007] As a preferred technical solution of the utility model, a slide groove is provided in the guide block, the slide groove is arranged in a ring array to the inside of the guide block, a slider is provided on the driving rod, the slider is arranged in a ring array to the driving rod, the driving rod slides to the inside of the guide block through the slider and the slide groove, and the sliding of the driving rod is not affected during rotation adjustment.

[0008] As a preferred technical solution of the utility model, an angle sensor is arranged in the shell, a display screen is arranged on the surface of the shell, a controller is arranged inside the display screen, a microprocessor is arranged in the controller, the angle sensor, the display screen and the force sensor are electrically connected to the microprocessor, and the microprocessor processes the electrical signals of the angle sensor and the force sensor, and displays the data through the display screen.

[0009] As a preferred technical solution of the utility model, the fixing mechanism includes a fixing block, which is located above the turntable, and guide shafts are provided on the left and right sides above the fixing block. A screw is rotatably connected between the two guide shafts, and the guide shaft is slidably connected to the inside of the guide hole. The screw is threadedly connected to the threaded hole for fixing and locking the turntable.

[0010] As a preferred technical solution of the utility model, a knob is provided at the top of the screw rod, and anti-slip grooves are provided on the side of the knob to facilitate operation.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model uses the knob on the fixing mechanism to cause friction between the fixing block and the turntable, so that the turntable does not rotate. When testing, since the turntable is locked, the drive rod does not rotate under the fixation of the V-type transmission mechanism, which solves the problem of the test piece rotating. The angle is adjusted by the rotating mechanism, and the test data can be directly displayed on the display through the linkage of the display screen, the angle sensor and the force sensor. When adjusting the angle, the angle adjustment amount can also be displayed on the display screen, so that the data can be observed clearly and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the rotating mechanism structure of the utility model Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the housing structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the rotating mechanism structure of the utility model Figure 2 ;

[0016] Figure 5 This is an enlarged view of structure B of the utility model;

[0017] Figure 6 This is an enlarged view of the structure C of the utility model;

[0018] Figure 7 This is a side view of the rotating mechanism of the utility model;

[0019] Figure 8 This is the AA cross-sectional view of the structure of the utility model;

[0020] Fig. 9 This is a partial exploded view of the guide block of the utility model structure;

[0021] Fig.10 It is an exploded diagram of the rotating mechanism of the utility model structure.

[0022] In the figure: 1. first support seat; 2. taper sleeve base; 3. ball head pull rod; 4. tooling; 5. flange; 6. rotating mechanism; 601. shell; 602. first hole; 603. second hole; 604. guide hole; 7. driving rod; 701. slider; 8. V-type transmission mechanism; 801. V-block; 802. fixed shaft; 9. force sensor; 10. second support seat; 11. hydraulic cylinder; 12. bottom plate; 13. turntable; 14. fixed hole; 15. second bearing; 16. auxiliary roller; 17. first bearing; 18. guide block; 181. slide groove; 19. display screen; 20. angle sensor; 21. fixing mechanism; 22. fixing block; 23. guide shaft; 24. screw; 25. knob. DETAILED DESCRIPTION

[0023] 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. Example

[0024] like Figures 1 to 10As shown, the utility model discloses a hydraulic loading device drive rod anti-rotation mechanism, the technical solution adopted is, including a base plate 12 and a ball head pull rod 3, the base plate 12 is provided with a first support seat 1, the first support seat 1 is fixedly connected to a cone sleeve base 2, the cone sleeve base 2 has a rotating mechanism 6 on the right, the rotating mechanism 6 includes a shell 601, the shell 601 can be split into two pieces, the shell 601 is fixed to the base plate 12, a first hole 602 is provided in the middle of the shell 601, second holes 603 are provided on both sides below the first hole 602, a guide hole 604 is provided on the top of the shell 601, and the guide hole 604 has two pieces as shown in FIG. Figure 6 As shown, a threaded hole is provided between the two guide holes 604, a first bearing 17 is fixedly connected in the first hole 602, the inner diameter of the first bearing 17 is fixed to the guide block 18, a slide groove 181 is provided in the guide block 18, and the slide groove 181 is arranged in a circular array in the guide block 18, a second bearing 15 is provided inside the housing 601, the inner diameter of the second bearing 15 is fixed to the outer diameter of the first bearing 17, the outer diameter of the second bearing 15 is fixed to the turntable 13, a fixing hole 14 is provided on the turntable 13, and the turntable There is an auxiliary roller 16 below the turntable 13, and the auxiliary roller 16 is rotatably connected to the inside of the second hole 603. There is a fixing mechanism 21 above the turntable 13, and the fixing mechanism 21 includes a fixing block 22. The fixing block 22 is located above the turntable 13, and a guide shaft 23 is mirrored on the fixing block 22. A screw rod 24 is rotatably connected between the two guide shafts 23. The guide shaft 23 is slidably connected to the inside of the guide hole 604. The screw rod 24 is threadedly connected to the threaded hole, and a knob 25 is provided at the end of the screw rod 24. Figure 8 As shown, the knob 25 has anti-slip grooves on its side.

[0025] As a preferred technical solution of the utility model, the guide block 18 is internally slidably connected to the drive rod 7, and a slider 701 is provided on the drive rod 7. The sliders 701 are arranged in a circular array on the drive rod 7. The number of the sliders 701 is consistent with the number of the slide grooves 181. The drive rod 7 is slidably connected to the inside of the guide block 18 through the slider 701 and the slide groove 181.

[0026] As an optimal technical solution of the utility model, a V-shaped transmission mechanism 8 is provided on the driving rod 7 on the right side of the rotating mechanism 6, and the V-shaped transmission mechanism 8 includes a V-block 801 and a fixed shaft 802. The V-block 801 is clamped and fixed on the driving rod 7, and the fixed shaft 802 is L-shaped. One end of the fixed shaft 802 is fixed to the V-block 801, and the other end of the fixed shaft 802 is slidably connected to the inside of the fixing hole 14. A force sensor 9 is provided at the right end of the driving rod 7, and the force sensor 9 is connected to the output shaft of the hydraulic cylinder 11. The hydraulic cylinder 11 is fixed to the base plate 12 through a second support seat 10, and the other end of the driving rod 7 is connected to the tooling 4 through a flange 5.

[0027] As a preferred technical solution of the utility model, an angle sensor 20 is arranged inside the shell 601, a display screen 19 is arranged on the surface of the shell 601, a controller is arranged inside the display screen 19, a microprocessor is arranged inside the controller, and the angle sensor 20 and the force sensor 9 are electrically connected to the microprocessor.

[0028] The working principle of the utility model is as follows: one end of the ball head pull rod 3 is fixed to the cone sleeve base 2, and the other end of the ball head pull rod 3 is fixed to the drive rod 7 through the tooling 4 and the flange 5, and the knob 25 on the fixing mechanism 21 is rotated to make the fixing block 22 and the turntable 13 rub against each other, so that the turntable 13 will not rotate, and the hydraulic cylinder 11 is started to perform a hydraulic loading test. Since the turntable 13 is locked, the drive rod 7 will not rotate under the fixation of the V-type transmission mechanism 8, and the test data will be displayed on the display screen 19. When the angle needs to be changed for testing, the hydraulic cylinder 11 is closed, the fixing mechanism 21 is loosened, and the fixed shaft 802 is held by hand for rotation. During rotation, the angle sensor 20 inside the housing 601 will display the rotation angle through the display screen 19. When it is rotated to a suitable angle, it is locked again through the fixing mechanism 21, and the hydraulic cylinder 11 is started for testing.

[0029] The circuits and mechanical connections involved in the utility model are common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which are common knowledge.

[0030] Components not described in detail herein are prior art.

[0031] 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 hydraulic loading device driving rod anti-rotation mechanism, comprising a base plate (12) and a ball head pull rod (3), characterized in that: The base plate (12) has a first support seat (1), the first support seat (1) is fixedly connected to a cone sleeve base (2), a rotating mechanism (6) is provided on the right side of the first support seat (1), the rotating mechanism (6) comprises a shell (601), a first hole (602) is provided in the middle of the shell (601), a second hole (603) is provided below the first hole (602), a guide hole (604) is provided above the shell (601), a threaded hole is provided between the two guide holes (604), a first bearing (17) is fixedly connected inside the first hole (602), the inner diameter of the first bearing (17) is connected to a guide block (18), the guide block (18) is slidably connected to a driving rod (7), the outer diameter of the first bearing (17) is connected to the inner diameter of the second bearing (15), the second bearing (15) is connected to the guide block (18), and the outer diameter of the first bearing (17) is connected to the inner diameter of the second bearing (15). 5) an outer diameter connected to a turntable (13), a fixing hole (14) is provided on the turntable (13), a fixing mechanism (21) is provided on the turntable (13), a V-shaped transmission mechanism (8) is provided on the drive rod (7) on the right side of the rotating mechanism (6), the V-shaped transmission mechanism (8) comprises a V-shaped block (801) and a fixed shaft (802), the V-shaped block (801) is fixed to the drive rod (7), the fixed shaft (802) is slidably connected to the fixing hole (14), a force sensor (9) is provided at the end of the drive rod (7), the other side of the force sensor (9) is connected to the output shaft of the hydraulic cylinder (11), the hydraulic cylinder (11) is fixed to the bottom plate (12) via a second support seat (10), and the other end of the drive rod (7) is connected to the tooling (4) via a flange (5).

2. The anti-rotation mechanism of the driving rod of the hydraulic loading device according to claim 1, characterized in that: An auxiliary roller (16) is rotatably connected in the second hole (603), and the auxiliary roller (16) is tangent to the rotating disk (13).

3. The anti-rotation mechanism of the driving rod of the hydraulic loading device according to claim 1, characterized in that: A slide groove (181) is provided in the guide block (18), and the slide grooves (181) are arranged in a circular array to the inside of the guide block (18). A slider (701) is provided on the drive rod (7), and the slider (701) is arranged in a circular array to the drive rod (7). The drive rod (7) slides into the inside of the guide block (18) through the slider (701) and the slide groove (181).

4. The anti-rotation mechanism of the driving rod of the hydraulic loading device according to claim 1, characterized in that: An angle sensor (20) is contained in the housing (601), a display screen (19) is disposed on the surface of the housing (601), a controller is disposed inside the display screen (19), a microprocessor is disposed inside the controller, and the angle sensor (20), the display screen (19) and the force sensor (9) are electrically connected to the microprocessor.

5. The anti-rotation mechanism of the driving rod of the hydraulic loading device according to claim 1, characterized in that: The fixing mechanism (21) comprises a fixing block (22), the fixing block (22) being located above the rotating disk (13), guide shafts (23) being provided on the left and right sides above the fixing block (22), a screw rod (24) being rotatably connected between the two guide shafts (23), the guide shaft (23) being slidably connected to the inside of the guide hole (604), and the screw rod (24) being threadedly connected to the threaded hole.

6. The anti-rotation mechanism of the driving rod of the hydraulic loading device according to claim 5, characterized in that: A knob (25) is provided at the top end of the screw rod (24), and anti-slip grooves are provided on the side of the knob (25).

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