Vehicle steering gear head detection device

Abstract

The utility model discloses a vehicle steering gear head detection device comprising a mounting rack, the bottom of the mounting rack is provided with an L-shaped plate, one side of the L-shaped plate is fixedly connected with two first positioning rods, the two first positioning rods are sleeved with a same hanging plate, the bottom of the hanging plate is fixedly connected with a first connecting sleeve rod, and the first connecting sleeve rod is fixedly connected with a second connecting sleeve rod. Two U-shaped plates are fixedly connected to the bottom of the mounting frame, sliding grooves are formed in the two sides of each U-shaped plate, pulleys are arranged in the sliding grooves, fixing shafts penetrate through the pulleys, the pulleys are rotationally connected with the fixing shafts, the two fixing shafts located at the same end are fixedly connected with the same moving plate, and plug pins are fixedly connected to the sides, close to each other, of the two moving plates. Insertion grooves are formed in the two sides of the hanging plate and matched with the plug pins. According to the utility model, the first connecting sleeve rod and the second connecting sleeve rod are convenient to disassemble and assemble, so that the first connecting sleeve rod and the second connecting sleeve rod matched with the steering gear head are convenient to replace, the operation is simple, and the flexibility and compatibility of the detection device are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of steering gear head testing technology, and in particular to a vehicle steering gear head testing device. Background Technology

[0002] A steering gear is a machine that helps the driver exert force when turning the steering wheel, reducing the effort required for steering and making driving easier and more convenient. After the steering gear head is manufactured, testing equipment is generally used to test the torque.

[0003] A search revealed Chinese patent CN221706936U, which discloses a performance testing device for automotive steering gear heads. The device includes a workbench with a frame fixedly mounted on its top. A testing mechanism is located outside the frame. The testing mechanism includes a cylinder fixedly mounted on the top of the frame, a forward / reverse motor fixedly mounted inside the device housing, a guide rail fixedly connected to the inner side of the frame, a sliding plate slidably connected to the inner side of the guide rail, and a second connecting rod rotatably mounted on the top of the sliding plate. Both the first and second connecting rods have splined grooves matching the automotive steering gear head. A torque sensor is fixedly mounted on the outer surface of the second connecting rod. This automotive steering gear head performance testing device, through its testing mechanism, achieves convenient testing and can obtain the limit torque value of the automotive steering gear head with good accuracy and low error, making it more practical.

[0004] The aforementioned automotive steering gear head performance testing device has the following shortcomings: the first connecting sleeve is fixed on the output shaft of the forward and reverse motor, and the second connecting sleeve is installed on the top of the sliding plate. It is inconvenient to disassemble and assemble the first and second connecting sleeves. Different models of steering gear heads require corresponding first and second connecting sleeves. If they cannot be replaced, only one model of steering gear head can be tested for torque, which is not ideal in terms of flexibility and practicality. Therefore, it is necessary to design an automotive steering gear head testing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vehicle steering gear head detection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vehicle steering gear head detection device includes a mounting bracket. An L-shaped plate is provided at the bottom of the mounting bracket. Two first positioning rods are fixedly connected to one side of the L-shaped plate. The two first positioning rods are fitted with the same hanging plate. A first connecting rod is fixedly connected to the bottom of the hanging plate. Two U-shaped plates are fixedly connected to the bottom of the mounting bracket. Sliding grooves are formed on both sides of each U-shaped plate. A pulley is provided within each sliding groove. A fixed shaft passes through each pulley and is rotatably connected to the fixed shaft. Two fixed shafts at the same end are fixedly connected to the same movable plate. The two movable plates move closer together... Each side is fixedly connected with a pin. Slots are provided on both sides of the hanging plate, and these slots are adapted to the pins. A second connecting rod is provided at the bottom of the first connecting rod. Both the first and second connecting rods have spline grooves. A fixing plate is provided at the bottom of the second connecting rod, and a fixing groove is provided on the fixing plate. A magnet is placed in the fixing groove, and the magnet is fixedly connected to the fixing plate. A metal fixing rod is fixedly connected to the bottom of the second connecting rod. Two limiting rods are provided on both sides of the L-shaped plate, and these limiting rods are fixedly connected to the moving plate. Due to the use of a lowering first connecting rod... The technical means of restricting the position of the first connecting sleeve rod during the rod-raising process, and the use of magnets and metal fixing rods to restrict the position of the second connecting sleeve rod, allows the pin to be inserted into the slot during the lowering of the first connecting sleeve rod, thus restricting the position of the mounting plate and fixing the first connecting sleeve rod. Raising the first connecting sleeve rod allows the pin to be removed from the slot, releasing the restriction and allowing the first connecting sleeve rod to be removed for replacement. The magnet holding the metal fixing rod ensures the stability of the second connecting sleeve rod, which is subjected to downward pressure, preventing positional shift. This effectively solves the problem mentioned in the background art that existing devices are inconvenient for disassembling and assembling the first and second connecting sleeve rods, and that different models of steering gear heads require corresponding first and second connecting sleeve rods. If replacement is not possible, torque testing can only be performed on one model of steering gear head, resulting in unsatisfactory flexibility and practicality. This invention achieves easy disassembly and assembly of the first and second connecting sleeve rods for replacement with those compatible with the steering gear head, simplifying operation and effectively improving the flexibility and compatibility of the testing device.

[0008] As a further embodiment of this utility model, the mounting frame is provided with an electric telescopic rod inside, the electric telescopic rod is fixedly connected to the mounting frame, and the output end of the electric telescopic rod is fixedly connected to the top of the L-shaped plate.

[0009] As a further embodiment of this utility model, two second positioning rods are fixedly connected to the bottom of the second connecting sleeve rod, and two positioning grooves are opened on the fixed plate, with the second positioning rods matching the positioning grooves.

[0010] As a further embodiment of this utility model, a torque sensor is provided at the bottom of the fixed disk, and the detection end of the torque sensor is fixedly connected to the fixed disk.

[0011] As a further embodiment of this utility model, an operating table is fixedly connected to the bottom housing of the torque sensor.

[0012] As a further embodiment of this utility model, a PLC control device is provided on the operating table, and the PLC control device is electrically connected to a torque sensor and an electric telescopic rod via wires.

[0013] As a further embodiment of this utility model, an L-shaped frame is fixedly connected to the top of the operating table, a rotating shaft is threaded through the L-shaped frame, the rotating shaft is rotatably connected to the L-shaped frame, the bottom of the rotating shaft is fixedly connected to the top of the L-shaped plate, a forward and reverse motor is fixedly connected to the top of the L-shaped frame, and the output end of the forward and reverse motor is connected to the rotating shaft through a coupling.

[0014] The beneficial effects of this utility model are as follows:

[0015] By employing techniques that restrict the position of the first connecting sleeve during its descent and to use a magnet and metal fixing rod to restrict the position of the second connecting sleeve, the lowering of the first connecting sleeve allows the pin to be inserted into the slot, thus restricting the position of the mounting plate and securing the first connecting sleeve. Raising the first connecting sleeve removes the pin from the slot, releasing the restriction and allowing the first connecting sleeve to be removed for replacement. The magnet holding the metal fixing rod ensures the stability of the second connecting sleeve, which is subjected to downward pressure, preventing positional shift. This effectively solves the problems mentioned in the background art, such as the inconvenience of disassembling and assembling the first and second connecting sleeves in existing devices, the need for corresponding first and second connecting sleeves for different steering gear heads, and the limitation that torque testing can only be performed on one type of steering gear head if interchangeability is not possible, resulting in unsatisfactory flexibility and practicality. This invention achieves easy disassembly and assembly of the first and second connecting sleeves for replacement with those compatible with the steering gear head, simplifying operation and effectively improving the flexibility and compatibility of the testing device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a vehicle steering gear head detection device proposed in this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of a vehicle steering gear head detection device proposed in this utility model;

[0018] Figure 3 This is a partial cross-sectional structural diagram of a vehicle steering gear head detection device proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the first connecting sleeve of a vehicle steering gear head detection device proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the L-shaped plate of the vehicle steering gear head detection device proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the unfolded structure of the mounting plate of a vehicle steering gear head detection device proposed in this utility model.

[0022] In the diagram: 1. Mounting bracket; 2. Electric telescopic rod; 3. L-shaped plate; 4. First positioning rod; 5. Hanging plate; 6. First connecting sleeve rod; 7. U-shaped plate; 8. Slide groove; 9. Pulley; 10. Fixed shaft; 11. Moving plate; 12. Pin; 13. Slot; 14. Second connecting sleeve rod; 15. Metal fixing rod; 16. Second positioning rod; 17. Fixed plate; 18. Fixed groove; 19. Positioning groove; 20. Magnet; 21. Torque sensor; 22. Operating table; 23. PLC control device; 24. L-shaped frame; 25. Rotating shaft; 26. Forward and reverse motor; 27. Limit rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-6A vehicle steering gear head detection device includes a mounting bracket 1. An L-shaped plate 3 is provided at the bottom of the mounting bracket 1. Two first positioning rods 4 are fixedly connected to one side of the L-shaped plate 3. The two first positioning rods 4 are fitted with the same hanging plate 5. A first connecting sleeve rod 6 is fixedly connected to the bottom of the hanging plate 5. Two U-shaped plates 7 are fixedly connected to the bottom of the mounting bracket 1. Slide grooves 8 are provided on both sides of each U-shaped plate 7. A pulley 9 is provided in each slide groove 8. A fixed shaft 10 passes through the pulley 9 and is rotatably connected to the fixed shaft 10. The two fixed shafts 10 at the same end are fixedly connected to the same moving plate 11. The two moving plates 11 are close to each other. Each side is fixedly connected with a pin 12. Slots 13 are provided on both sides of the hanging plate 5, and the slots 13 are adapted to the pins 12. A second connecting sleeve 14 is provided at the bottom of the first connecting sleeve 6. Both the first connecting sleeve 6 and the second connecting sleeve 14 have spline grooves. A fixing plate 17 is provided at the bottom of the second connecting sleeve 14. A fixing groove 18 is provided on the fixing plate 17, and a magnet 20 is provided inside the fixing groove 18. The magnet 20 is fixedly connected to the fixing plate 17. A metal fixing rod 15 is fixedly connected to the bottom of the second connecting sleeve 14. Two limiting rods 27 are provided on both sides of the L-shaped plate 3, and the limiting rods 27 are fixedly connected to the moving plate 11. Because of the technical means employed—limiting the position of the first connecting sleeve rod during its descent and using a magnet and metal fixing rod to limit the position of the second connecting sleeve rod—the lowering of the first connecting sleeve rod allows the pin to be inserted into the slot, thus limiting the position of the hanging plate and securing the first connecting sleeve rod. Raising the first connecting sleeve rod removes the pin from the slot, releasing the restriction and allowing the first connecting sleeve rod to be removed and replaced. The magnet holding the metal fixing rod ensures the stability of the second connecting sleeve rod, which is subjected to downward pressure. The position of the connecting sleeve rod will not shift, effectively solving the problem mentioned in the background technology that the existing device is inconvenient to disassemble and assemble the first and second connecting sleeve rods, and different models of steering gear heads require corresponding first and second connecting sleeve rods. If they cannot be replaced, torque testing can only be performed on one model of steering gear head, resulting in unsatisfactory flexibility and practicality. Therefore, the device achieves the technical effect of easy disassembly and assembly of the first and second connecting sleeve rods to replace them with those that are compatible with the steering gear head. The operation is simple, and the device's flexibility and compatibility are effectively improved.

[0025] In this embodiment, an electric telescopic rod 2 is provided inside the mounting frame 1. The electric telescopic rod 2 is fixedly connected to the mounting frame 1, and the output end of the electric telescopic rod 2 is fixedly connected to the top of the L-shaped plate 3.

[0026] In this embodiment, two second positioning rods 16 are fixedly connected to the bottom of the second connecting sleeve rod 14, and two positioning grooves 19 are opened on the fixed plate 17. The second positioning rods 16 are adapted to the positioning grooves 19. The position between the second connecting sleeve rod 14 and the fixed plate 17 is positioned by the cooperation of the second positioning rods 16 and the positioning grooves 19. When the second connecting sleeve rod 14 rotates, it will drive the second positioning rods 16 to rotate, and the second positioning rods 16 will drive the fixed plate 17 to rotate, so that torque detection can be performed.

[0027] In this embodiment, a torque sensor 21 is provided at the bottom of the fixed disk 17, and the detection end of the torque sensor 21 is fixedly connected to the fixed disk 17.

[0028] In this embodiment, the bottom housing of the torque sensor 21 is fixedly connected to the operating table 22.

[0029] In this embodiment, a PLC control device 23 is provided on the operating console 22. The PLC control device 23 is electrically connected to the torque sensor 21 and the electric telescopic rod 2 via wires. The data detected by the torque sensor 21 will be displayed on the display screen of the PLC control device 23.

[0030] In this embodiment, an L-shaped frame 24 is fixedly connected to the top of the operating table 22, a rotating shaft 25 is threaded through the L-shaped frame 24, the rotating shaft 25 is rotatably connected to the L-shaped frame 24, the bottom of the rotating shaft 25 is fixedly connected to the top of the L-shaped plate 3, a forward and reverse motor 26 is fixedly connected to the top of the L-shaped frame 24, and the output end of the forward and reverse motor 26 and the rotating shaft 25 are connected by a coupling.

[0031] Working principle: During assembly, the first connecting sleeve 6 and the second connecting sleeve 14, which are compatible with the steering gear head, are removed. The metal fixing rod 15 at the bottom of the second connecting sleeve 14 is inserted into the fixing groove 18, and the second positioning rod 16 is inserted into the positioning groove 19 to position the second connecting sleeve 14. The metal fixing rod 15 is attracted by the magnet 20, which ensures the stability of the position between the second connecting sleeve 14 and the fixing plate 17 when the second connecting sleeve 14 is rotated. The steering gear head is inserted into the spline groove on the second connecting sleeve 14, and the hanging plate 5 on the first connecting sleeve 6 is placed on the two first positioning rods 4 for positioning. When using an external power supply, the electric telescopic rod 2 is activated, causing the output end of the electric telescopic rod 2 to extend. The output end will cause the L-shaped plate 3 to descend, which in turn will cause the first positioning rod 4 to descend, which in turn will cause the hanging plate 5 to descend, which in turn will cause the first connecting sleeve rod 6 to descend closer to the steering gear head. During the descent of the L-shaped plate 3, the limiting rod 27 will also descend, which in turn will cause the moving plate 11 to descend. The moving plate 11 and the hanging plate 5 will descend synchronously. The descent of the moving plate 11 will cause the fixed shaft 10 to move, which in turn will cause the pulley 9 to move along the slide groove 8, allowing the pulley 9 to move a certain distance towards the L-shaped plate 3. The pulley 9 will then cause the fixed shaft 10 to move, which in turn will cause the moving plate 11 to move, which in turn will cause the pin 12 to move closer to the hanging plate 5 until... Inserting pin 12 into slot 13 restricts the position between mounting plate 5 and L-shaped plate 3, thus assembling the first connecting sleeve 6. Continuing to lower L-shaped plate 3 until the first connecting sleeve 6 is fitted onto the steering gear head, the steering gear head is now positioned within the spline groove of the first connecting sleeve 6. The external controller activates the forward / reverse motor 26, whose output drives the coupling to rotate. The coupling then drives the rotating shaft 25, which in turn drives the mounting bracket 1. The mounting bracket 1 then drives the electric telescopic rod 2 and the U-shaped plate 7, thereby causing the first connecting sleeve 6 to rotate. The first connecting sleeve 6 then drives the steering gear head to rotate, which in turn drives the second connecting sleeve 14 to rotate. The second connecting sleeve rod 14 will drive the second positioning rod 16 to rotate, and the second positioning rod 16 will drive the fixed plate 17 to rotate, so that torque can be detected. The detection data will be displayed on the screen of the PLC control device 23. After the detection is completed, the output end of the electric telescopic rod 2 is retracted, so that the first connecting sleeve rod 6 can be raised away from the steering head and removed. The output end of the electric telescopic rod 2 is fully retracted, so that the two pins 12 can be removed from the slot 13, so that the restriction on the hanging plate 5 can be released, and the hanging plate 5 can be removed from the first positioning rod 4, so that the first connecting sleeve rod 6 can be replaced. The second connecting sleeve rod 14 is raised, so that the second connecting sleeve rod 14 can be removed and replaced.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vehicle steering gear head detection device, comprising a mounting bracket (1), characterized in that, The mounting bracket (1) has an L-shaped plate (3) at its bottom. Two first positioning rods (4) are fixedly connected to one side of the L-shaped plate (3). The two first positioning rods (4) are fitted with the same hanging plate (5). The bottom of the hanging plate (5) is fixedly connected with a first connecting sleeve rod (6). The bottom of the mounting bracket (1) has two U-shaped plates (7). Both sides of the U-shaped plates (7) have grooves (8). A pulley (9) is installed in the groove (8). A fixed shaft (10) passes through the pulley (9). The pulley (9) is rotatably connected to the fixed shaft (10). The two fixed shafts (10) at the same end are fixedly connected to the same moving plate (11). The two moving plates (11) are fixedly connected with pins (12) on their sides that are close to each other. The hanging plate (5) has slots (13) on both sides, which are adapted to the pins (12). The bottom of the first connecting sleeve (6) is provided with a second connecting sleeve (14). The first connecting sleeve (6) and the second connecting sleeve (14) are provided with spline grooves. The bottom of the second connecting sleeve (14) is provided with a fixing plate (17). The fixing plate (17) is provided with a fixing groove (18). A magnet (20) is provided in the fixing groove (18). The magnet (20) is fixedly connected to the fixing plate (17). The bottom of the second connecting sleeve (14) is fixedly connected with a metal fixing rod (15). The two sides of the L-shaped plate (3) are provided with two limiting rods (27). The limiting rods (27) are fixedly connected to the moving plate (11).

2. The vehicle steering gear head detection device according to claim 1, characterized in that, The mounting frame (1) is equipped with an electric telescopic rod (2), which is fixedly connected to the mounting frame (1). The output end of the electric telescopic rod (2) is fixedly connected to the top of the L-shaped plate (3).

3. The vehicle steering gear head detection device according to claim 1, characterized in that, The bottom of the second connecting sleeve (14) is fixedly connected to two second positioning rods (16), and two positioning grooves (19) are opened on the fixed plate (17). The second positioning rods (16) are adapted to the positioning grooves (19).

4. The vehicle steering gear head detection device according to claim 3, characterized in that, A torque sensor (21) is provided at the bottom of the fixed disk (17), and the detection end of the torque sensor (21) is fixedly connected to the fixed disk (17).

5. The vehicle steering gear head detection device according to claim 4, characterized in that, The bottom housing of the torque sensor (21) is fixedly connected to an operating table (22).

6. The vehicle steering gear head detection device according to claim 5, characterized in that, The operating console (22) is equipped with a PLC control device (23), which is electrically connected to the torque sensor (21) and the electric telescopic rod (2) via wires.

7. The vehicle steering gear head detection device according to claim 6, characterized in that, An L-shaped frame (24) is fixedly connected to the top of the operating table (22). A rotating shaft (25) is threaded through the L-shaped frame (24). The rotating shaft (25) is rotatably connected to the L-shaped frame (24). The bottom of the rotating shaft (25) is fixedly connected to the top of the L-shaped plate (3). A forward and reverse motor (26) is fixedly connected to the top of the L-shaped frame (24). The output end of the forward and reverse motor (26) and the rotating shaft (25) are connected by a coupling.

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