Tractor driving position vibration detection device

Abstract

The utility model discloses a vibration detection device for a tractor driving position. The vibration detection device comprises a test box, a bottom supporting structure, a counterweight supporting structure and a steering wheel conduction structure. According to the vibration detection device for the tractor driving position, the accelerometer, the gyroscope and the vibration acquisition sensor are used for performing real-time data acquisition in measurement of vibration parameters of the whole body of a tractor driver, and the controller uploads the data to a remote control center through the wireless communication module after the test is completed; the whole-body vibration combined weighted acceleration of the driver can be conveniently calculated; the bottom supporting structure, the balance weight supporting structure and the steering wheel conduction structure are used for carrying out multidirectional positioning and vibration conduction on the test box, a tester does not need to sit in a cab, and therefore unmanned testing is achieved; compared with a traditional measurement mode, the testing device is small in structure, automatic measurement of whole-body vibration parameters of the tractor driver under various road conditions and environments is facilitated, and the measurement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a testing device, and more particularly to a vibration detection device for the driver's seat of a tractor. Background Technology

[0002] Currently, the detection of whole-body vibration in tractor drivers relies solely on traditional measurement methods, which suffer from problems such as low intelligence of measurement equipment, long measurement times, difficulty in tracing historical test data, and significant factors affecting measurement accuracy. This invention aims to develop an automatic measurement system for whole-body vibration parameters of tractor drivers, ensuring data security and traceability in the agricultural tractor testing and evaluation process, and contributing to the intelligent, information-based, scientific, and standardized development of agricultural machinery testing and evaluation. Utility Model Content

[0003] Purpose of the utility model: To provide a vibration detection device for the driver's seat of a tractor, which can improve the accuracy of measuring the vibration parameters of the tractor driver's whole body during unmanned testing.

[0004] Technical Solution: The tractor driver's seat vibration detection device provided by this utility model includes a test box, a bottom support structure, a counterweight support structure, and a steering wheel transmission structure. The bottom support structure is installed on the front side of the lower side of the test box and is used to support the bottom of the driver's cab. The counterweight support structure is adjustable and installed on the test box for placement on the driver's seat and support on the back of the driver's seat. The steering wheel transmission structure is installed in the middle of the front side of the upper side of the test box and is used to fasten and support the steering wheel. A controller, a memory, an accelerometer, a gyroscope, a vibration acquisition sensor, and a wireless communication module are installed inside the test box. The memory, accelerometer, gyroscope, vibration acquisition sensor, and wireless communication module are all electrically connected to the controller. A display screen and control buttons electrically connected to the controller are installed on the upper side of the test box.

[0005] Furthermore, the bottom support structure includes two bottom support branches; each bottom support branch includes a bottom support rod and a bottom support tube; the upper end of the bottom support rod is mounted on the test box via a positioning plate, and the lower end is telescopically and adjustablely inserted into the bottom support tube; a bottom support plate is rotatably mounted on the lower end of the bottom support tube.

[0006] Furthermore, the counterweight support structure includes a bottom counterweight seat, an adjustable counterweight seat, a fixed positioning strip, and a movable positioning block; the bottom counterweight seat is longitudinally slidably installed at the bottom of the test chamber; a fixed positioning strip is longitudinally provided at the bottom of the test chamber; a clearance groove for avoiding the fixed positioning strip is longitudinally provided on the bottom counterweight seat; an adjustment groove is provided on the lower side of the bottom counterweight seat; a counterweight adjustment bolt with its end extending into the clearance groove is threaded onto the adjustment groove; a movable positioning block is rotatably installed on the counterweight adjustment bolt; multiple snap-fit ​​protrusions are spaced laterally arranged on the opposite sides of the fixed positioning strip and the movable positioning block; the upper snap-fit ​​protrusions engage with the lower snap-fit ​​protrusions; the adjustable counterweight seat is hingedly installed on the bottom counterweight seat for support on the chair back.

[0007] Furthermore, the adjustable counterweight seat is hinged to the bottom counterweight seat on its lower side; a swing adjustment groove is vertically provided on the adjustable counterweight seat; a swing adjustment seat is slidably and adjustablely installed in the swing adjustment groove; and a hinge rod with its end hinged to the bottom counterweight seat is hinged to the swing adjustment seat.

[0008] Furthermore, the steering wheel transmission structure includes a positioning buckle, an upper telescopic rod, an upper telescopic tube, and a universal joint; the lower end of the upper telescopic rod is mounted on the test box via the universal joint, and the upper end is telescopically adjustable and mounted on the lower end of the upper telescopic tube; the positioning buckle is mounted on the upper end of the upper telescopic tube and is used to lock and position the steering wheel.

[0009] Furthermore, the positioning buckle includes a mounting plate, a fixed half-ring, and a movable half-ring; the mounting plate is fixed to the upper end of the upper telescopic tube; the lower end of the fixed half-ring is fixed to the mounting plate; the lower end of the movable half-ring is hinged to the mounting plate and is used to cooperate with the fixed half-ring to clamp the steering wheel; a pull plate is provided on the upper end of both the fixed half-ring and the movable half-ring; a pull bolt is threaded through the two pull plates; a pull nut is threaded onto the end of the pull bolt, and the pull nut is used to cooperate with the bolt head of the pull bolt to pull the two pull plates.

[0010] Compared with existing technologies, the advantages of this invention are as follows: It utilizes accelerometers, gyroscopes, and vibration acquisition sensors to collect real-time data on the vibration parameters of a tractor driver's entire body, storing the data in a memory. After testing, the controller uploads the data from the memory to a remote control center via a wireless communication module for calculating the driver's combined weighted acceleration. The bottom support structure, counterweight support structure, and steering wheel transmission structure are used to position the test box in multiple directions and transmit vibrations, eliminating the need for a tester to sit in the cab, thus achieving unmanned testing. Compared to traditional measurement methods, the testing device has a smaller structure, facilitating automatic measurement of the tractor driver's entire body vibration parameters under various road conditions and environments, thereby improving measurement efficiency. Attached Figure Description

[0011] Figure 1 This is an assembly drawing of the present utility model;

[0012] Figure 2 This is an enlarged view of the positioning buckle of this utility model;

[0013] Figure 3 This is a schematic diagram of the installation of the bottom counterweight base of this utility model;

[0014] Figure 4 This is a top view of the test box of this utility model;

[0015] Figure 5 This is a schematic diagram of the circuit structure of this utility model;

[0016] In the diagram: 1. Test box; 2. Display screen; 3. Control buttons; 4. Universal joint; 6. Upper telescopic rod; 7. Top threaded hole; 8. Upper telescopic tube; 9. Top positioning bolt; 10. Mounting plate; 11. Fixed half ring; 12. Movable half ring; 13. Semi-annular rubber pad; 15. Tie plate; 16. Tie bolt; 17. Tie nut; 18. T-shaped rail; 19. Bottom counterweight seat; 20. T-shaped slot; 21. Adjustment slot; 22. Counterweight adjustment bolt; 23. Fixed positioning strip; 24. Movable positioning block; 25. Adjustable counterweight seat; 26. Swing adjustment seat; 27. Swing adjustment bolt; 28. Hinge rod; 29. ​​Positioning plate; 30. Bottom support rod; 31. Bottom threaded hole; 32. Bottom support tube; 33. Bottom positioning bolt; 34. Bottom support plate. Detailed Implementation

[0017] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Example 1:

[0021] like Figure 1-5 As shown, the tractor driver's seat vibration detection device provided by this utility model includes: a test box 1, a bottom support structure, a counterweight support structure, and a steering wheel transmission structure; the bottom support structure is installed on the front side of the lower side of the test box 1, and is used to support the bottom of the driver's cab; the counterweight support structure is installed on the test box 1 in a front-to-back adjustable manner, and is used to place on the driver's seat and support the back of the driver's seat; the steering wheel transmission structure is installed in the middle of the front side of the upper side of the test box, and is used to fasten and support the steering wheel; a controller, a memory, an accelerometer, a gyroscope, a vibration acquisition sensor, and a wireless communication module are provided inside the test box 1; the memory, accelerometer, gyroscope, vibration acquisition sensor, and wireless communication module are all electrically connected to the controller; a display screen 2 and control buttons 3, which are electrically connected to the controller, are installed on the upper side of the test box 1.

[0022] Real-time data acquisition of the tractor driver's whole-body vibration parameters is performed using accelerometers, gyroscopes, and vibration acquisition sensors. The data is stored in a memory. After the test, the controller uploads the data in the memory to a remote control center via a wireless communication module to calculate the driver's whole-body vibration combined weighted acceleration. The test box 1 is positioned in multiple directions and the vibration is transmitted using a bottom support structure, a counterweight support structure, and a steering wheel transmission structure, eliminating the need for test personnel to sit in the cab, thus achieving unmanned testing. Compared with traditional measurement methods, the test device has a smaller structure, which facilitates the automatic measurement of the tractor driver's whole-body vibration parameters under various road conditions and environments, improving measurement efficiency.

[0023] Furthermore, the bottom support structure includes two bottom support branches; each bottom support branch includes a bottom support rod 30 and a bottom support tube 32; a positioning plate 29 is fixed to the upper end of the bottom support rod 30; the positioning plates 29 of the two bottom support branches are installed at the two top corners of the front side of the lower side of the test box 1 by fixing bolts; multiple bottom threaded holes 31 are provided at intervals on the bottom support rod 30; the lower end of the bottom support rod 30 is inserted into the upper end of the bottom support tube 32; a bottom positioning bolt 33 with its end screwed into one of the bottom threaded holes 31 is threaded onto the upper opening of the bottom support tube 32; a bottom support plate 34 supported on the cockpit floor is rotatably installed on the lower end of the bottom support tube 32.

[0024] By adjusting the length of the bottom support rod 30 extending from the bottom support tube 32, the bottom support plate 34 is positioned on the bottom plate of the cockpit, making the test box 1 horizontal. At the same time, it can simulate the driver's legs, support the test box 1, and transmit the vibration of the bottom of the cockpit to the test box 1, thereby improving the accuracy of the test.

[0025] Furthermore, the counterweight support structure includes a bottom counterweight base 19, an adjustable counterweight base 25, a fixed positioning bar 23, a movable positioning block 24, and a hinge rod 28; a T-shaped track 18 and a fixed positioning bar 23 are longitudinally arranged on the rear side of the lower side of the test chamber 1; a T-shaped groove 20 for sliding cooperation with the T-shaped track 18 and an avoidance groove for avoiding the fixed positioning bar 23 are longitudinally arranged on the upper side of the bottom counterweight base 19; a... Adjustable slot 21; a counterweight adjusting bolt 22 with its end extending into the clearance slot is threaded onto the bottom of the adjustable slot 21; a movable positioning block 24 is longitudinally arranged on the end of the counterweight adjusting bolt 22; multiple buckling protrusions are arranged laterally at intervals on the opposite sides of the fixed positioning strip 23 and the movable positioning block 24; the upper buckling protrusions engage with the lower buckling protrusions; the adjustable counterweight seat 25 is hingedly installed on the bottom counterweight seat 19 for supporting the chair back.

[0026] The position of the bottom counterweight seat 19 on the test chamber 1 can be adjusted by utilizing the cooperation between the T-shaped rail 18, T-shaped slot 20, fixed positioning strip 23, movable positioning block 24 and counterweight adjustment bolt 22. This allows the position of the bottom counterweight seat 19 to be adjusted and locked according to the length and inclination of the seat cushion. While transmitting vibrations from the seat cushion to the test chamber 1, the bottom counterweight seat 19 can also provide a certain amount of self-weight to simulate the driver's weight, thereby improving the accuracy of the test.

[0027] Furthermore, the lower edge of the adjustable counterweight 25 is hinged to the rear edge of the bottom counterweight 19; a swing adjustment groove is vertically provided on the front side of the adjustable counterweight 25; multiple swing adjustment threaded holes are spaced apart on the bottom of the swing adjustment groove; a swing adjustment seat 26 is slidably installed in the swing adjustment groove; a swing adjustment bolt 27 with its end screwed into one of the swing adjustment threaded holes is threaded onto the swing adjustment seat 26; one end of the hinge rod 28 is hinged to the rear side of the upper side of the bottom counterweight 19, and the other end is hinged to the swing adjustment seat 26.

[0028] The adjustable counterweight 25 is oscillated by utilizing the cooperation between the adjustable counterweight 25, the hinge rod 28, the swing adjustment seat 26, the swing adjustment bolt 27, and the swing adjustment groove. This allows the adjustable counterweight 25 to be supported on the seat back, transmit vibrations from the seat back, and improve the accuracy of the test.

[0029] Furthermore, the steering wheel transmission structure includes a positioning buckle, an upper telescopic rod 6, an upper telescopic tube 8, and a universal joint 4; the lower end of the upper telescopic rod 6 is installed in the middle of the front side of the upper side of the test box 1 through the universal joint 4, and the upper end is inserted into the lower end of the upper telescopic tube 8; multiple top threaded holes 7 are provided at intervals on the upper telescopic rod 6; a top positioning bolt 9 is threaded at the lower opening of the upper telescopic tube 8, with its end screwed into one of the top threaded holes 7; the positioning buckle is installed on the upper end of the upper telescopic tube 8 for locking and positioning on the steering wheel.

[0030] By adjusting the length of the upper telescopic rod 6 extending beyond the upper telescopic tube 8, the positioning buckle can be locked onto the steering wheel, thereby transmitting vibrations at the steering wheel and improving the accuracy of the test.

[0031] Furthermore, the positioning buckle includes a mounting plate 10, a fixed half-ring 11, and a movable half-ring 12; the mounting plate 10 is fixed to the upper end of the upper telescopic tube 8; the lower end of the fixed half-ring 11 is fixed to the mounting plate 10; the lower end of the movable half-ring 12 is hinged to the mounting plate 10 and is used to cooperate with the fixed half-ring 11 to clamp the steering wheel; a pull plate 15 is provided on the upper end of both the fixed half-ring 11 and the movable half-ring 12; a pull bolt 16 passes through the two pull plates 15; a pull nut 17 is threaded onto the end of the pull bolt 16, and the pull nut 17 is used to cooperate with the bolt head of the pull bolt 16 to pull the two pull plates 15; a semi-annular rubber pad 13 is provided on the inner circumference of both the fixed half-ring 11 and the movable half-ring 12.

[0032] By using the bolt heads of the tie nut 17 and the tie bolt 16 to pull the two tie plates 15, the fixed half ring 11 and the movable half ring 12 cooperate to support the steering wheel and achieve positioning buckle.

[0033] In the tractor driver's seat vibration detection device provided by this utility model, the controller adopts an existing single-chip microcomputer control module; the memory adopts an existing memory; the display screen 2 adopts an existing display screen; the wireless communication module adopts an existing wireless communication module; the gyroscope adopts an existing gyroscope; and the accelerometer adopts an existing accelerometer.

[0034] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A vibration detection device for a tractor driver's seat, characterized in that: It includes a test box (1), a bottom support structure, a counterweight support structure, and a steering wheel transmission structure; the bottom support structure is installed on the front side of the lower side of the test box (1) and is used to support the bottom of the cockpit. The counterweight support structure is adjustable and installed on the test box (1) for placement on the driver's seat and support on the back of the driver's seat; the steering wheel transmission structure is installed in the middle of the front side of the upper side of the test box for locking and supporting on the steering wheel; the test box (1) is equipped with a controller, memory, accelerometer, gyroscope, vibration acquisition sensor and wireless communication module; the memory, accelerometer, gyroscope, vibration acquisition sensor and wireless communication module are all electrically connected to the controller; the upper side of the test box (1) is equipped with a display screen (2) and control buttons (3) that are electrically connected to the controller.

2. The tractor driver's seat vibration detection device according to claim 1, characterized in that: The bottom support structure includes two bottom support branches; each bottom support branch includes a bottom support rod (30) and a bottom support tube (32); the upper end of the bottom support rod (30) is mounted on the test box (1) via a positioning plate (29), and the lower end is telescopically and adjustablely inserted into the bottom support tube (32); a bottom support plate (34) is rotatably mounted on the lower end of the bottom support tube (32).

3. The tractor driver's seat vibration detection device according to claim 1, characterized in that: The counterweight support structure includes a bottom counterweight base (19), an adjustable counterweight base (25), a fixed positioning bar (23), and a movable positioning block (24); the bottom counterweight base (19) is longitudinally slidably installed at the bottom of the test chamber (1); a fixed positioning bar (23) is longitudinally provided at the bottom of the test chamber (1); a clearance slot for avoiding the fixed positioning bar (23) is longitudinally provided on the bottom counterweight base (19); an adjustment slot is provided on the lower side of the bottom counterweight base (19). (21); a counterweight adjusting bolt (22) with its end extending into the clearance slot is screwed into the adjusting slot (21); a movable positioning block (24) is rotatably installed on the counterweight adjusting bolt (22); multiple buckle protrusions are arranged horizontally at intervals on the opposite sides of the fixed positioning strip (23) and the movable positioning block (24); the buckle protrusions on the upper side mesh with the buckle protrusions on the lower side; the adjustable counterweight seat (25) is hingedly installed on the bottom counterweight seat (19).

4. The tractor driver's seat vibration detection device according to claim 3, characterized in that: The adjustable counterweight seat (25) is hinged on the bottom counterweight seat (19) at the lower side; a swing adjustment groove is vertically provided on the adjustable counterweight seat (25); a swing adjustment seat (26) is slidably and adjustablely installed in the swing adjustment groove; a hinge rod (28) with its end hinged to the bottom counterweight seat (19) is hinged on the swing adjustment seat (26).

5. The tractor driver's seat vibration detection device according to claim 1, characterized in that: The steering wheel transmission structure includes a positioning buckle, an upper telescopic rod (6), an upper telescopic tube (8), and a universal joint (4); the lower end of the upper telescopic rod (6) is mounted on the test box (1) through the universal joint (4), and the upper end is telescopically adjustable and mounted on the lower end of the upper telescopic tube (8); the positioning buckle is mounted on the upper end of the upper telescopic tube (8) and is used to lock and position the steering wheel.

6. The tractor driver's seat vibration detection device according to claim 5, characterized in that: The positioning buckle includes a mounting plate (10), a fixed half ring (11), and a movable half ring (12); the mounting plate (10) is fixed to the upper end of the upper telescopic tube (8); the lower end of the fixed half ring (11) is fixed to the mounting plate (10); the lower end of the movable half ring (12) is hinged to the mounting plate (10) and is used to cooperate with the fixed half ring (11) to clamp the steering wheel; a pull plate (15) is provided on the upper end of both the fixed half ring (11) and the movable half ring (12); a pull bolt (16) is passed through the two pull plates (15); a pull nut (17) is threaded on the end of the pull bolt (16) and is used to cooperate with the bolt head of the pull bolt (16) to pull the two pull plates (15).

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