Traction device for agricultural machinery

Abstract

A traction device for agricultural machinery, the traction device comprising a connecting unit (1) and a front arm (2), wherein the front arm is mounted on the front end surface of the connecting unit in an articulated manner; a fixing groove is provided in the upper portion of the outer side wall of the connecting unit; an adjustment electric motor (11) is embedded in the rear end surface of the interior of the fixing groove; an adjustment lead screw (12) is mounted at an output end of the adjustment electric motor, and the other end of the adjustment lead screw is rotationally connected to the front end surface of the interior of the fixing groove by means of a bearing; an adjustment slider (13) is in threaded connection with the outer side wall of the adjustment lead screw, an inclined plate (14) is mounted on the upper end surface of the adjustment slider, and a telescopic rod (15) is mounted at the bottom of the inclined plate; a placement groove is provided in the upper portion of the outer side wall of the front arm; a placement slider (16) is mounted in the placement groove in a sliding fit manner; and the upper end surface of the placement slider is rotationally connected to the telescopic rod by means of a pin shaft. The traction device can easily control the front arm to turn over, such that the ease of use of the device is improved, and adjustment can be easily performed on the basis of actual production requirements.

Description

Traction device for agricultural machinery Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a traction device for agricultural machinery. Background Art

[0002] Traction devices are commonly used to connect the main and auxiliary machinery, ensuring stability. Currently, using traction devices to pull and power agricultural machinery is a common method of operation. The agricultural machinery is connected to the traction machine's hitch frame via a traction frame, and the power input shaft is connected to the traction machine's power output shaft to provide power to the agricultural machinery.

[0003] A Chinese patent discloses a traction device for agricultural machinery (authorization announcement number CN 215529843 U). This patented technology can solve the current problem that the connection between the traction frame of agricultural machinery and the agricultural machinery is mostly rigid. If the working surface is uneven during operation, the traction frame connected between the traction machinery and the agricultural machinery will receive a relatively large impact and easily be damaged. It will also affect the power input shaft and power output shaft of the interconnected agricultural machinery. In addition, when turning, the traction machinery and the agricultural machinery turn synchronously as a whole, resulting in a large turning radius and inconvenience in operation.

[0004] The existing traction device cannot adjust the tilt angle of agricultural machinery, which seriously affects the farming effect and progress of farmers. In addition, when the connection of the traction device breaks, the entire mechanism needs to be replaced, which increases the cost of use, causes waste of resources, and is inconvenient for people to use.

[0005] Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a traction device for agricultural machinery, comprising a connecting frame and a forearm, wherein the front end surface of the connecting frame is hingedly mounted on the forearm, the upper part of the outer wall of the connecting frame is provided with a fixing groove, the rear end surface of the fixing groove is embedded with an adjusting motor, an adjusting screw is installed at the output end of the adjusting motor, the other end of the adjusting screw is rotatably connected to the front end surface in the fixing groove through a bearing, an adjusting slider is screwed on the outer wall of the adjusting screw, an inclined plate is installed on the upper end surface of the adjusting slider, a telescopic rod is installed at the bottom of the inclined plate, a placement groove is provided on the upper part of the outer wall of the forearm, a placement slider is installed in the placement groove by a sliding fit, the upper end surface of the placement slider and the telescopic rod are rotatably connected by a pin shaft, when the adjusting motor is started, it drives the adjusting screw to rotate forward, the adjusting screw drives the adjusting slider to move toward the rear end, thereby driving the forearm to flip upward, the adjusting motor drives the adjusting screw to reverse, the adjusting cylinder drives the adjusting slider to move forward, thereby driving the forearm to flip downward through the telescopic rod, thereby realizing the rotation of the forearm, improving the convenience of use of the device, and facilitating adjustment according to actual production needs.

[0007] Preferably: a card slot is provided on the front end face of the connecting frame, a card head is installed in the card slot by card connection, a front frame is installed on the front end face of the card head, and a forearm is installed on the front end face of the front frame by hinge connection. When the hinge between the forearm and the front frame breaks, the forearm can be replaced by disassembling the front frame due to the card head card connection method, so there is no need to replace a new connecting frame, thereby reducing the cost of work and maintenance.

[0008] Preferably: a plurality of slots are provided in the card slot along its circumferential direction, insertion rods are arranged in the slots, and an annular frame is installed on the front end face of the insertion rod. The insertion rod passes through the card head to limit and fix it, thereby preventing the connection between the front frame and the connecting frame from loosening and falling off, improving the stability of the device installation, and avoiding safety accidents during agricultural operations. When disassembling, the multiple insertion rods can be taken out by simply pulling the annular frame.

[0009] Preferably: a spherical groove is opened in the middle of the slot, and a locking ball is installed on the outer side wall of the insertion rod. The locking ball is arranged in the spherical groove. The locking ball structure further enhances the limiting effect of the insertion rod on the clamping head, thereby improving the overall stability of the device.

[0010] Preferably: an annular plate is arranged at the outer end of the connecting frame, a notch is opened on the upper part of the outer wall of the annular plate, a plurality of connecting rods are installed on the inner wall of the annular plate along its circumferential direction, and a soft pad is installed on the inner end of the connecting rod, and the soft pad is tightly attached to the outer wall of the connecting frame. The soft pad provides shock absorption protection for the connecting frame, avoiding damage to the connecting frame due to vibration during operation, and extending the service life of the connecting frame.

[0011] Preferably, the outer side wall of the annular plate is provided with a plurality of reinforcing ribs from front to back, and a plurality of reinforcing rib structures are adopted, thereby enhancing the stability of the annular plate.

[0012] Technical effects and advantages of this utility model:

[0013] 1. The utility model adopts an adjusting screw structure, which is convenient for controlling the flipping of the forearm, improves the convenience of using the device, and facilitates adjustment according to actual production needs.

[0014] 2. The present invention adopts a card frame structure with a card connection. When the hinge between the forearm and the front frame is broken, the forearm can be replaced by disassembling the front frame, thereby eliminating the need to replace a new connecting frame and reducing maintenance costs.

[0015] 3. The utility model adopts an inserting column and a clamping ball structure. The inserting rod passes through the clamping head to limit and fix it. The clamping ball further enhances the limiting effect of the inserting rod on the clamping head, thereby improving the overall stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a front view of a traction device for agricultural machinery provided in an embodiment of the present application;

[0017] FIG2 is a right side view of the structure of a traction device for agricultural machinery provided in an embodiment of the present application;

[0018] FIG3 is a cross-sectional right side view of a traction device for agricultural machinery provided in an embodiment of the present application;

[0019] FIG4 is a cross-sectional front view of a traction device for agricultural machinery provided in an embodiment of the present application;

[0020] FIG5 is an enlarged view of the area A in FIG3 of a traction device for agricultural machinery provided in an embodiment of the present application;

[0021] In the figure: 1. Connecting frame; 2. Forearm; 11. Adjusting motor; 12. Adjusting screw; 13. Adjusting slider; 14. Inclined plate; 15. Telescopic rod; 16. Placement slider; 17. Clamp; 18. Front frame; 19. Insert rod; 21. Ring frame; 22. Clamping ball; 23. Ring plate; 24. Cushion; 25. Reinforcement rib. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0023] Please refer to Figures 1 to 5. In this embodiment, a traction device for agricultural machinery is provided, which includes a connecting frame 1 and a forearm 2. The front end surface of the connecting frame 1 is hingedly mounted with the forearm 2. A fixing groove is provided on the upper portion of the outer wall of the connecting frame 1. An adjustment motor 11 is embedded in the rear end surface of the fixing groove. An adjustment screw 12 is mounted on the output end of the adjustment motor 11. The other end of the adjustment screw 12 is rotatably connected to the front end surface of the fixing groove through a bearing. An adjustment slider 13 is screwed to the outer wall of the adjustment screw 12. An inclined plate 14 is mounted on the upper end surface of the adjustment slider 13. A telescopic rod 15 is mounted on the bottom of the inclined plate 14. The upper portion of the outer wall of the forearm 2 is provided with a fixing groove. An adjustment motor 11 is embedded in the rear end surface of the fixing groove. An adjustment screw 12 is mounted on the output end of the adjustment motor 11. The other end of the adjustment screw 12 is rotatably connected to the front end surface of the fixing groove through a bearing. A placement slot is provided, in which a placement slider 16 is installed in a sliding fit manner. The upper end surface of the placement slider 16 is rotationally connected to the telescopic rod 15 through a pin shaft. During operation, the adjusting motor 11 is started, driving the adjusting screw 12 to rotate forward, and the adjusting screw 12 drives the adjusting slider 13 to move toward the rear side, thereby driving the forearm 2 to flip upward, and the adjusting motor 11 drives the adjusting screw 12 to reverse, and the adjusting cylinder drives the adjusting slider 13 to move forward, thereby driving the forearm 2 to flip downward through the telescopic rod 15, thereby realizing the rotation of the forearm 2, improving the convenience of using the device and facilitating adjustment according to actual production needs.

[0024] A card slot is provided on the front end face of the connecting frame 1, in which a card head 17 is installed by card connection, a front frame 18 is installed on the front end face of the card head 17, and a forearm 2 is installed on the front end face of the front frame 18 by hinge connection. During operation, if the hinge between the forearm 2 and the front frame 18 breaks, the forearm 2 can be replaced by disassembling the front frame 18 due to the card connection method of the card head 17, so there is no need to replace a new connecting frame 1, thereby reducing the cost of work and maintenance.

[0025] The card slot is provided with a plurality of slots along its circumferential direction, in which insertion rods 19 are arranged, and an annular frame 21 is installed on the front end face of the insertion rod 19. When working, the insertion rod 19 passes through the clamping head 17 to limit and fix it, avoiding loosening and falling off at the connection between the front frame 18 and the connecting frame 1, thereby improving the stability of the device installation and avoiding safety accidents during agricultural operations. When disassembling, the plurality of insertion rods 19 can be taken out by simply pulling the annular frame 21.

[0026] A spherical groove is provided in the middle of the slot, and a locking ball 22 is installed on the outer wall of the insertion rod 19. The locking ball 22 is arranged in the spherical groove. When working, the locking ball 22 structure is adopted to avoid the poor limiting effect of a single insertion rod 19 on the clamping head 17, further enhancing the limiting effect of the insertion rod 19 on the clamping head 17, thereby improving the overall stability of the device.

[0027] An annular plate 23 is arranged at the outer end of the connecting frame 1, and a notch is opened on the upper part of the outer wall of the annular plate 23. A plurality of connecting rods are installed on the inner wall of the annular plate 23 along its circumferential direction. A soft pad 24 is installed on the inner end of the connecting rod. The soft pad 24 is tightly attached to the outer wall of the connecting frame 1. When working, the soft pad 24 provides shock absorption protection for the connecting frame 1, avoiding damage to the connecting frame 1 due to vibration during work, thereby extending the service life of the connecting frame 1.

[0028] The outer side wall of the annular plate 23 is provided with a plurality of reinforcing ribs 25 from front to back. During operation, the plurality of reinforcing ribs 25 are used to improve the anti-seismic and anti-compression performance of the annular plate 23 and ensure the firmness of the annular plate 23 after use.

[0029] During specific operation, the adjusting motor 11 is started, driving the adjusting screw 12 to rotate forward, and the adjusting screw 12 drives the adjusting slider 13 to move to the rear side end, thereby driving the forearm 2 to flip upward, and the adjusting motor 11 drives the adjusting screw 12 to reverse, and the adjusting cylinder drives the adjusting slider 13 to move forward, thereby driving the forearm 2 to flip downward through the telescopic rod 15, thereby realizing the rotation of the forearm 2, improving the convenience of use of the device, and facilitating adjustment according to actual production needs. When the hinge between the forearm 2 and the front frame 18 is broken, due to the connection method of the clamping head 17, the forearm 2 can be replaced by disassembling the front frame 18, thereby eliminating the need to replace a new connecting frame 1, reducing the cost of work and maintenance, and the insertion rod 19 passes through the clamping head 17 to limit and fix it, preventing the front frame 18 from loosening and falling off at the connection between the connecting frame 1, improving the stability of the device installation, and avoiding safety accidents during agricultural operations. When disassembling, multiple insertion rods 19 can be taken out by simply pulling the annular frame 21.

[0030] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A traction device for agricultural machinery, comprising a connecting frame (1) and a forearm (2), characterized in that: The front end surface of the connecting frame (1) is hingedly mounted with a forearm (2); a fixing groove is provided on the upper part of the outer wall of the connecting frame (1); an adjusting motor (11) is embedded in the rear end surface of the fixing groove; an adjusting screw (12) is mounted on the output end of the adjusting motor (11); the other end of the adjusting screw (12) is rotatably connected to the front end surface of the fixing groove via a bearing; an adjusting slider (13) is screwed to the outer wall of the adjusting screw (12); an inclined plate (14) is mounted on the upper end surface of the adjusting slider (13); a telescopic rod (15) is mounted on the bottom of the inclined plate (14); a placement groove is provided on the upper part of the outer wall of the forearm (2); a placement slider (16) is mounted in the placement groove via a sliding fit; the upper end surface of the placement slider (16) is rotatably connected to the telescopic rod (15) via a pin shaft.

2. A traction device for agricultural machinery according to claim 1, characterized in that The front end face of the connecting frame (1) is provided with a card slot, a card head (17) is installed in the card slot by card connection, a front frame (18) is installed on the front end face of the card head (17), and a forearm (2) is installed on the front end face of the front frame (18) by hinge connection.

3. A traction device for agricultural machinery according to claim 2, characterized in that: A plurality of slots are provided in the card slot along its circumferential direction, an insert rod (19) is arranged in the slot, and an annular frame (21) is installed on the front end surface of the insert rod (19).

4. The traction device for agricultural machinery according to claim 3, characterized in that: A spherical groove is provided in the middle of the slot, and a clamping ball (22) is installed on the outer side wall of the insertion rod (19), and the clamping ball (22) is arranged in the spherical groove.

5. The traction device for agricultural machinery according to claim 1, characterized in that: An annular plate (23) is arranged at the outer end of the connecting frame (1), a notch is provided at the upper portion of the outer wall of the annular plate (23), a plurality of connecting rods are installed along the circumferential direction of the inner wall of the annular plate (23), a soft pad (24) is installed at the inner end of the connecting rod, and the soft pad (24) is tightly attached to the outer wall of the connecting frame (1).

6. The traction device for agricultural machinery according to claim 5, characterized in that: The outer side wall of the annular plate (23) is provided with a plurality of reinforcing ribs (25) from front to back.

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