A tractor saddle test platform

Abstract

The utility model relates to the technical field of saddle test, especially disclose a tractor saddle test platform, including base, be provided with lifting mechanism on the base, be provided with platform support on the lifting mechanism, and platform support is provided with linear guide rail, be provided with mounting plate on linear guide rail, one end of base is provided with gantry, and gantry and base slide fit, be provided with connecting mechanism on the gantry, and be provided with positioning mechanism on platform support, the utility model satisfies the installation test need of different model tractor saddle through the lifting of platform support, through the movement of mounting plate driven by drive mechanism, and the connection of convenient realization loading and unloading and with connecting shaft, through the chamfer bevel of connecting seat and the roller axle of rotation installation, realize the leveling and orientation of tractor saddle, avoid the collision, realize the positioning of mounting plate through positioning mechanism, through the actuator to gantry exert force, the reliability of testing that tractor saddle is connected with connecting seat.

Description

Technical Field

[0001] This utility model relates to the field of saddle testing technology, and in particular to a tractor saddle testing platform. Background Technology

[0002] The tractor saddle is a connecting component of a cargo tractor used to tow and support a semi-trailer. It is the core connecting device between the cargo tractor and the semi-trailer. It is connected to the towing pin through a locking mechanism and undertakes the functions of transmitting traction force, supporting the front load of the semi-trailer, and realizing steering. The tractor saddle not only plays the role of towing the semi-trailer and bearing the load of the semi-trailer, but also must be able to withstand the motion conditions of the tractor starting, accelerating, decelerating, steering, and braking, as well as the impact when attaching the semi-trailer. Therefore, the strength of the tractor saddle and the reliability of the connection will directly affect the driving safety of the semi-trailer.

[0003] Application No. CN201510600463.6 discloses a tractor saddle impact force testing system, including a saddle fixture connected to a trailer via a main pin shaft. The system further includes a guide rail mounted on the tractor, a slider fixed to a surface of the saddle fixture near the tractor, a groove formed within the guide rail, and the slider slidably connected to the groove. The testing system also includes a force measuring element disposed on the front and / or rear side of the slider to measure the longitudinal force acting on the saddle fixture.

[0004] This patent measures the impact force of the trailer's main pin shaft on the saddle using a force measuring element. The testing system has a simple structure. However, this technical solution needs to be tested in the actual environment where the tractor and trailer are connected. It is not convenient to test the tractor saddle in the production process, resulting in poor practicality and difficulty in promotion.

[0005] Therefore, it is necessary to propose an improved tractor saddle test platform to overcome the shortcomings of the existing technology. Utility Model Content

[0006] The purpose of this invention is to solve the problems in the prior art and provide a tractor saddle testing platform.

[0007] The technical solution of this utility model is: A tractor saddle testing platform includes a base, a lifting mechanism on the base, a platform support on the lifting mechanism, symmetrically distributed linear guide rails on both sides of the top surface of the platform support, a mounting plate between two linear guide rails, a drive mechanism on the platform support, the drive mechanism being connected to the mounting plate, a gantry frame at one end of the base, the gantry frame slidingly engaging with the base, a connecting mechanism on the gantry frame, and a positioning mechanism on the platform support below the connecting mechanism.

[0008] Preferably, the lifting mechanism includes a dual-axis geared motor and a worm gear jack. Two worm gear jacks are arranged on both sides of the dual-axis geared motor. The worm gear jacks and the dual-axis geared motor are connected by a drive shaft. The output end of the worm gear jack is connected to the platform support. Two symmetrical guide sleeves are provided on the base. A guide shaft is slidably arranged inside the guide sleeve and connected to the platform support.

[0009] Preferably, the connecting mechanism includes a connecting seat, which is mounted on the gantry frame. The bottom surface of the front end of the connecting seat is provided with a chamfered bevel, and a connecting shaft is provided in the middle of the bottom surface of the connecting seat.

[0010] Preferably, a roller is provided on the bottom surface of the connecting seat, and the roller is positioned between the chamfered bevel and the connecting shaft, and the roller is rotatably connected to the connecting seat.

[0011] Preferably, the positioning mechanism includes a positioning plate, which is mounted on a platform support. A positioning cylinder is mounted on the bottom surface of the positioning plate, and a positioning sleeve adapted to the positioning cylinder is mounted on the top surface of the positioning plate. A positioning shaft is mounted on the extended end of the positioning cylinder, and the positioning shaft penetrates and slides within the positioning sleeve.

[0012] Preferably, the mounting plate is provided with positioning holes that are compatible with the positioning shaft.

[0013] Preferably, the base is provided with a slide rail, and the gantry is provided with a slider, which slides in conjunction with the slide rail.

[0014] Preferably, an actuator is mounted on the base, and the output end of the actuator is connected to the gantry.

[0015] Preferably, the mounting plate is provided with several mounting holes.

[0016] Preferably, the base has support legs at all four corners.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This utility model, through the lifting and lowering of the platform bracket relative to the base and several positioning holes on the mounting plate, meets the installation and testing needs of different models of tractor saddles. It is highly versatile and widely applicable. The drive mechanism moves the mounting plate, facilitating the loading and unloading of the tractor saddle and its connection with the connecting shaft. The chamfered bevel on the connecting seat and the rotating roller shaft achieve leveling and guidance of the tractor saddle, avoiding collisions. The positioning mechanism positions the mounting plate, and the actuator applies force to the gantry to test the reliability of the connection between the tractor saddle and the connecting seat. The overall structure is simple, easy to operate, highly versatile, and easy to promote and apply in the tractor saddle manufacturing industry. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0019] The components are as follows: 1. Base; 2. Platform support; 3. Linear guide rail; 4. Mounting plate; 5. Gantry frame; 6. Dual-axis geared motor; 7. Worm gear jack; 8. Drive shaft; 9. Guide sleeve; 10. Guide shaft; 11. Connecting seat; 12. Chamfered bevel; 13. Connecting shaft; 14. Roller shaft; 15. Positioning plate; 16. Positioning cylinder; 17. Positioning sleeve; 18. Positioning shaft; 19. Positioning hole; 20. Slide rail; 21. Slider; 22. Actuator; 23. Mounting hole; 24. Support leg; 25. Drive mechanism. Detailed Implementation

[0020] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0021] like Figures 1-4 As shown, a tractor saddle test platform includes a base 1, a platform support 2, and a gantry 5. A lifting mechanism is installed on the base 1, and the platform support 2 is connected to the lifting mechanism. The lifting mechanism drives the platform support 2 to rise and fall relative to the base 1. An mounting plate 4 is connected to the platform support 2 for mounting the tractor saddle. The mounting plate 4 can move relative to the platform support 2. The gantry 5 is installed at one end of the base 1 and spans over the platform support 2. A connecting mechanism is installed on the gantry 5. The mounting plate 4 drives the tractor saddle to move towards the gantry 5, connecting the tractor saddle with the connecting mechanism. A positioning mechanism is installed on the platform support 2. After the mounting plate 4 moves the tractor saddle into position, the positioning mechanism positions the mounting plate 4. The gantry 5 can slide relative to the base 1. The reliability of the connection between the tractor saddle and the connecting mechanism is tested by the movement of the gantry 5.

[0022] like Figure 2 and Figure 3As shown, the lifting mechanism includes a dual-axis geared motor 6 and a worm gear jack 7. The dual-axis geared motor 6 is mounted on the base 1. There are two worm gear jacks 7, which are respectively mounted on both sides of the dual-axis geared motor 6. The worm gear jacks 7 and the dual-axis geared motor 6 are connected by a drive shaft 8. The output end of the worm gear jack 7 is connected to the platform support 2. The dual-axis geared motor 6 drives the two worm gear jacks 7 simultaneously to achieve the up and down lifting of the platform support 2 and adjust the distance between the platform support 2 and the base 1. Four guide sleeves 9 are installed on the base 1, which are symmetrically distributed in pairs. A guide shaft 10 is installed inside the guide sleeve 9. The guide shaft 10 can slide relative to the guide sleeve 9. The upper end of the guide shaft 10 is connected to the platform support 2. The sliding of the guide shaft 10 inside the guide sleeve 9 guides and limits the lifting of the platform support 2, ensuring the smooth lifting of the platform support 2.

[0023] like Figures 1-3 As shown, symmetrically distributed linear guide rails 3 are installed on both sides of the top surface of the platform support 2. The linear guide rails 3 are distributed along the length direction of the platform support 2. The mounting plate 4 is connected between two linear guide rails 3 and can move along the linear guide rails 3. The movement of the mounting plate 4 is achieved by a drive mechanism 25 installed on the platform support 2. The drive mechanism 25 is connected to the mounting plate 4. The drive mechanism 25 can be, but is not limited to, a motor screw, a magnetic coupling rodless cylinder, a hydraulic cylinder, etc. In this embodiment, the drive mechanism 25 is a motor screw as an example. The motor and the screw are both installed on the platform support 2. The motor is connected to the screw, and the screw is threaded to the mounting plate 4. The motor drives the screw to rotate, and the screw is threaded to the mounting plate 4, which drives the mounting plate 4 to move along the linear guide rails 3. Several mounting holes 23 are machined on the mounting plate 4 to realize the installation connection of saddles of different models of tractor vehicles. It has strong versatility and wide applicability.

[0024] like Figures 1-3 As shown, the connecting mechanism includes a connecting seat 11, which is mounted on the gantry 5. The bottom surface of the front end of the connecting seat 11 is machined with a chamfered bevel 12. A connecting shaft 13 is fixedly installed in the middle of the bottom surface of the connecting seat 11. A roller 14 is installed on the bottom surface of the connecting seat 11, between the chamfered bevel 12 and the connecting shaft 13. The roller 14 is rotatably connected to the connecting seat 11. After installation, the circumferential surface of the roller 14 slightly exceeds the bottom surface plane of the connecting seat 11. The mounting plate 4 drives the tractor saddle to move towards the gantry 5. During the movement, the tractor saddle first contacts the chamfered bevel 12. Under the action of the chamfered bevel 12, the tractor saddle is horizontally adjusted to facilitate the connection with the connecting shaft 13. As the mounting plate 4 continues to move, the roller 14 rotates under the action of friction between the tractor saddle and the connecting seat 11, reducing the friction between the tractor saddle and the connecting seat 11 and ensuring smooth movement. When the mounting plate 4 is in place, the tractor saddle is connected to the connecting shaft 13.

[0025] like Figure 1 As shown, the positioning mechanism is installed on the platform support 2 and located below the connecting seat 11. The positioning mechanism includes a positioning plate 15, which is fixedly connected to the platform support 2. Two positioning cylinders 16 are mounted on the bottom surface of the positioning plate 15, symmetrically distributed. A positioning sleeve 17 is mounted on the top surface of the positioning plate 15, and the positioning sleeve 17 is adapted to the positioning cylinder 16. The protruding end of the positioning cylinder 16 extends through the positioning plate 15 into the positioning sleeve 17. The protruding end of the positioning cylinder 16 is connected to a positioning shaft 18, which is located inside the positioning sleeve 17. The positioning sleeve 17 is slidably fitted. When the positioning cylinder 16 retracts, the top surface of the positioning shaft 18 does not extend beyond the positioning sleeve 17, thus avoiding interference with the movement of the mounting plate 4. When the mounting plate 4 moves into place and the tractor saddle is connected to the connecting shaft 13, the positioning cylinder 16 drives the positioning shaft 18 to extend. The mounting plate 4 has a positioning hole 19 corresponding to the positioning shaft 18. The positioning shaft 18 is inserted into the positioning hole 19 to achieve the positioning of the mounting plate 4. Furthermore, the impact generated by the force on the mounting plate 4 is transmitted to the positioning sleeve 17 through the positioning shaft 18, which will not cause impact damage to the positioning cylinder 16, thereby improving the safety of use and reducing the cost of use.

[0026] like Figure 1 and Figure 4 As shown, slide rails 20 are installed on both sides of the end where the gantry 5 is installed on the base 1. A slider 21 is machined on the bottom of the gantry 5. The slider 21 is inserted into the slide rail 20 and slides with the slide rail 20. The slide rail 20 and slider 21 have a T-shaped or dovetail structure, which is simple in structure and has high stability. An actuator 22 is installed on the base 1. Specifically, the fixed end of the actuator 22 is connected to the base 1, and the output end of the actuator 22 is connected to the gantry 5. The actuator 22 generates a thrust on the gantry 5, causing the gantry 5 to move relative to the base 1, thereby generating a force on the connection between the connecting shaft 13 and the tractor saddle to test the reliability of the connection. The actuator 22 is a pneumatic cylinder or a hydraulic cylinder.

[0027] like Figure 1 As shown, support legs 24 are installed at the four corners of the bottom of the base 1. The support legs 24 are used to raise and stably support the base 1, which facilitates the installation and removal of the tractor saddle and ensures stability during testing.

[0028] The working principle of this utility model is as follows: The drive mechanism 25 moves the mounting plate 4 to its initial position away from the gantry 5, fixing the tractor saddle to the mounting holes 23 on the mounting plate 4. Different mounting holes 23 can meet the installation requirements of different models of tractor saddles. After the tractor saddle is installed in place, the dual-shaft reduction motor 6 is started according to the model and size of the tractor saddle. The dual-shaft reduction motor 6 drives the worm gear lifts 7 on both sides through the drive shaft 8 to adjust the distance between the platform support 2 and the base 1, that is, to adjust the distance between the tractor saddle and the connecting seat 11. After the adjustment is completed, the drive mechanism 25 moves the mounting plate 4 quickly along the linear guide rail 3. During the movement, the front end of the tractor saddle first contacts the chamfered slope 12. Under the action of the chamfered slope 12, the front end of the tractor saddle moves along the chamfered slope 12 towards the bottom surface of the connecting seat 11 and is leveled, avoiding the tractor saddle from colliding with the connecting seat. The collision interference of 11, as the tractor saddle moves towards the bottom surface of the connecting seat 11, the roller 14 rotates, reducing the friction between the tractor saddle and the connecting seat 11, and improving the smoothness of the movement of the tractor saddle relative to the connecting seat 11. The drive mechanism 25 drives the mounting plate 4 and the tractor saddle to move into place, and the tractor saddle completes the connection and locking on the connecting shaft 13. The positioning cylinder 16 drives the positioning shaft 18 to extend, and the positioning shaft 18 is inserted into the positioning hole 19 on the mounting plate 4 to achieve the positioning of the mounting plate 4. The actuator 22 is activated, and the actuator 22 applies a thrust to the gantry 5, which tends to disconnect the connecting shaft 13 from the tractor saddle. The reliability of the connection of the tractor saddle is tested by applying force. At this time, the force borne by the mounting plate 4 is borne by the connecting shaft 13 and the connecting sleeve, and will not impact the positioning cylinder 16.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A tractor saddle testing platform, characterized in that, The system includes a base (1), a lifting mechanism on the base (1), a platform support (2) on the lifting mechanism, symmetrically distributed linear guide rails (3) on both sides of the top surface of the platform support (2), an installation plate (4) between the two linear guide rails (3), a drive mechanism (25) on the platform support (2), the drive mechanism (25) being connected to the installation plate (4), a gantry frame (5) at one end of the base (1), the gantry frame (5) being slidably fitted with the base (1), a connecting mechanism on the gantry frame (5), and a positioning mechanism on the platform support (2) and below the connecting mechanism.

2. The tractor saddle test platform according to claim 1, characterized in that: The lifting mechanism includes a dual-axis geared motor (6) and a worm gear jack (7). Two worm gear jacks (7) are arranged on both sides of the dual-axis geared motor (6). The worm gear jack (7) and the dual-axis geared motor (6) are connected by a drive shaft (8). The output end of the worm gear jack (7) is connected to the platform support (2). Two symmetrical guide sleeves (9) are provided on the base (1). A guide shaft (10) is slidably arranged inside the guide sleeve (9). The guide shaft (10) is connected to the platform support (2).

3. The tractor saddle test platform according to claim 1, characterized in that: The connecting mechanism includes a connecting seat (11), which is mounted on the gantry (5). The bottom surface of the front end of the connecting seat (11) is provided with a chamfered bevel (12), and a connecting shaft (13) is provided in the middle of the bottom surface of the connecting seat (11).

4. The tractor saddle test platform according to claim 3, characterized in that: A roller (14) is provided on the bottom surface of the connecting seat (11). The roller (14) is located between the chamfered inclined surface (12) and the connecting shaft (13). The roller (14) and the connecting seat (11) are rotatably connected.

5. The tractor saddle test platform according to claim 1, characterized in that: The positioning mechanism includes a positioning plate (15), which is mounted on the platform support (2). A positioning cylinder (16) is mounted on the bottom surface of the positioning plate (15), and a positioning sleeve (17) adapted to the positioning cylinder (16) is mounted on the top surface of the positioning plate (15). A positioning shaft (18) is mounted on the extended end of the positioning cylinder (16), and the positioning shaft (18) penetrates and slides inside the positioning sleeve (17).

6. The tractor saddle test platform according to claim 5, characterized in that: The mounting plate (4) is provided with positioning holes (19) that are compatible with the positioning shaft (18).

7. The tractor saddle test platform according to claim 1, characterized in that: The base (1) is provided with a slide rail (20), and the gantry (5) is provided with a slider (21), which slides in cooperation with the slide rail (20).

8. The tractor saddle test platform according to claim 1, characterized in that: An actuator (22) is provided on the base (1), and the output end of the actuator (22) is connected to the gantry (5).

9. The tractor saddle test platform according to claim 1, characterized in that: The mounting plate (4) is provided with a number of mounting holes (23).

10. The tractor saddle test platform according to claim 1, characterized in that: The base is provided with support legs (24) at each of the four corners of its bottom.

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