Tractor damping traction mechanism
By introducing a first connecting piece, a second connecting piece, and a shock-absorbing spring into the tractor traction mechanism, the problem of lack of shock absorption in traditional tractor traction mechanisms is solved, achieving effective buffering and shock absorption and convenient equipment connection.
Patent Information
- Application Number
- CN202423189421.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Traditional tractor traction mechanisms lack shock absorption, resulting in significant vibrations when driving on uneven roads, affecting driving comfort and operational safety, and accelerating the wear of mechanical parts.
The design includes a first connector, a second connector, and a shock-absorbing spring. Vertical rotation is achieved through a pin hinge, and the shock-absorbing spring buffers the relative movement of the connector, providing a cushioning and shock absorption effect.
It effectively reduces component wear, improves driving comfort, facilitates connection with different agricultural machinery, and reduces vibration caused by uneven road surfaces.
Smart Images
Figure CN223626315U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of traction mechanism, especially tractor damping traction mechanism. BACKGROUND
[0002] As an important power machinery, tractor is widely used in farmland operation, transportation and other agricultural production activities. Tractor usually uses traction mechanism to pull agricultural machinery equipment in operation. In the design of traditional traction mechanism, one end is hinged with the rear axle of tractor through a pin shaft to realize vertical rotation; the other end is hinged with the traction rod of agricultural machinery equipment through another pin shaft to support horizontal rotation. Although this connection mode is simple and direct, it lacks effective damping function, resulting in obvious vibration problem in driving process. Especially when driving on uneven road, the traction mechanism is easy to collide with the rear axle of tractor. This not only affects driving comfort and operation safety, but also accelerates the wear of mechanical parts, increases failure rate and maintenance cost. SUMMARY
[0003] In view of the problem that the above-mentioned traditional traction mechanism lacks damping function, the purpose of the utility model is to provide a tractor damping traction mechanism.
[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:
[0005] A tractor damping traction mechanism, wherein, including first connecting piece 1, second connecting piece 2 and damping spring 3, first connecting piece 1 and second connecting piece 2 are hinged through pin shaft 4, first connecting piece 1 is used to connect tractor, and second connecting piece 2 is used to connect traction rod;The front end of damping spring 3 abuts against first connecting piece 1, the rear end of damping spring 3 abuts against second connecting piece 2, and damping spring 3 is used to buffer the relative motion of first connecting piece 1 and second connecting piece 2.
[0006] Further, the first connecting piece 1 includes first bottom plate 11, first vertical plate 12, second vertical plate 13, third vertical plate 14 and fourth vertical plate 15, the rear side of first vertical plate 12 is connected with the left end of the front side of first bottom plate 11, and the rear side of second vertical plate 13 is connected with the right end of the front side of first bottom plate 11;First vertical plate 12 and second vertical plate 13 are both provided with screw hole 16 for connecting tractor;The front side of third vertical plate 14 and the front side of fourth vertical plate 15 are both connected with the rear side of first bottom plate 11, and third vertical plate 14 and fourth vertical plate 15 are symmetrically arranged left and right;Third vertical plate 14 and fourth vertical plate 15 are both provided with pin hole for the pin shaft 4 to pass through.
[0007] Further, the first connecting piece 1 further comprises a first limiting plate 17 and a first limiting column 18, the top side of the first limiting plate 17 is connected with the bottom side of the first bottom plate 11, the front end of the first limiting column 18 is connected with the rear side of the first limiting plate 17, and the front end of the shock spring 3 is abutted against the rear side of the first limiting plate 17 and is sleeved on the first limiting column 18.
[0008] Further, the second connecting piece 2 comprises a second bottom plate 21, a fifth vertical plate 22, a sixth vertical plate 23, a first horizontal plate 24 and a second horizontal plate 25, the rear side of the fifth vertical plate 22 is connected with the left side of the second bottom plate 21, the rear side of the sixth vertical plate 23 is connected with the right side of the second bottom plate 21, and the fifth vertical plate 22 and the sixth vertical plate 23 are symmetrically arranged; the front side of the first horizontal plate 24 is connected with the top side of the second bottom plate 21, and the front side of the second horizontal plate 25 is connected with the bottom side of the second bottom plate 21; the fifth vertical plate 22 and the sixth vertical plate 23 are both provided with pin holes for the pin shaft 4 to pass through; the first horizontal plate 24 and the second horizontal plate 25 are both provided with pin holes for connecting a traction rod.
[0009] Further, the second connecting piece 2 further comprises a second limiting plate 26 and a second limiting column 27, the top side of the second limiting plate 26 is connected with the bottom side of the second horizontal plate 25, and the rear end of the second limiting column 27 is connected with the front side of the second limiting plate 26; the rear end of the shock spring 3 is abutbed against the front side of the second limiting plate 26 and is sleeved on the second limiting column 27.
[0010] Further, the fifth vertical plate 22 and the sixth vertical plate 23 are both arranged between the first vertical plate 12 and the second vertical plate 13.
[0011] Further, the rear side of the third vertical plate 14 and the rear side of the fourth vertical plate 15 are both in arc shape.
[0012] Further, the front side of the fifth vertical plate 22 and the front side of the sixth vertical plate 23 are both in arc shape.
[0013] Further, the first vertical plate 12, the second vertical plate 13, the third vertical plate 14 and the fourth vertical plate 15 are all perpendicular to the first bottom plate 11.
[0014] The utility model discloses a kind of connecting pieces, which comprises first connecting piece 1 and second connecting piece 2, and first connecting piece 1 and second connecting piece 2 are connected by pin shaft 4.
[0015] (1) The utility model discloses a first connecting piece, second connecting piece and shock absorber spring, first connecting piece and second connecting piece are hinged through pin shaft, so that both can rotate in vertical direction relative, first connecting piece is fixedly connected with tractor rear axle, second connecting piece is hinged with agricultural equipment's towbar, so that both can rotate in horizontal direction relative, the front end of shock absorber spring is against first connecting piece, the rear end of shock absorber spring is against second connecting piece, shock absorber spring can buffer the relative movement of first connecting piece and second connecting piece, and then can play the role of buffering and shock absorption, so not only reduce the wear and tear between parts, and also improve the comfort of driver, when tractor towing trailer drives on uneven road, tractor and trailer will produce greater relative movement, in this case, shock absorber spring can play the effective buffering and shock absorption effect.
[0016] (2) Considering that tractor may need to replace different agricultural equipment during operation, in order to improve the convenience of actual operation, the traction mechanism is usually kept connected with the rear end of tractor. However, the one end of the traditional traction mechanism is naturally hanging before connecting the agricultural equipment, which means that the end needs to be lifted to the horizontal position before being connected with the towbar during installation. In contrast, the front end of the shock absorber spring of the utility model is against the first connecting piece, and the rear end is against the second connecting piece, which ensures that the first connecting piece and the second connecting piece can maintain a horizontal state in normal state, thereby facilitating the connection with the towbar. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 It is the overall structure schematic diagram of a tractor shock absorption traction mechanism of the utility model.
[0018] Fig. 2 It is a side view of a tractor shock absorption traction mechanism of the utility model.
[0019] Fig. 3 It is an explosion view of a tractor shock absorption traction mechanism of the utility model.
[0020] In the drawings: 1, first connecting piece, 11, first bottom plate, 12, first vertical plate, 13, second vertical plate, 14, third vertical plate, 15, fourth vertical plate, 16, screw hole, 17, first limiting plate, 18, first limiting column, 2, second connecting piece, 21, second bottom plate, 22, fifth vertical plate, 23, sixth vertical plate, 24, first horizontal plate, 25, second horizontal plate, 26, second limiting plate, 27, second limiting column, 3, shock absorber spring, 4, pin shaft. DETAILED DESCRIPTION
[0021] The utility model will be further described below in combination with the drawings and specific embodiments, but not as the limitation of the utility model.
[0022] Please refer toFigs. 1 to 3 As shown in the figure, a tractor damping traction mechanism is shown, which comprises: a first connecting piece 1, a second connecting piece 2 and a damping spring 3, the first connecting piece 1 and the second connecting piece 2 are hinged by a pin shaft 4, and the two opposite directions can rotate in the vertical direction, the first connecting piece 1 is used to connect the tractor, and the second connecting piece 2 is used to connect the drawbar; the front end of the damping spring 3 abuts against the first connecting piece 1, the rear end of the damping spring 3 abuts against the second connecting piece 2, the damping spring 3 is used to buffer the relative movement of the first connecting piece 1 and the second connecting piece 2, thereby when the tractor and the towed agricultural equipment move relative in the vertical direction, the damping effect can be achieved; the damping spring 3 is located below the pin shaft 4.
[0023] Further, in a preferred embodiment, the first connecting piece 1 comprises a first bottom plate 11, a first vertical plate 12, a second vertical plate 13, a third vertical plate 14 and a fourth vertical plate 15, the rear side of the first vertical plate 12 is connected with the left end of the front side of the first bottom plate 11, and the rear side of the second vertical plate 13 is connected with the right end of the front side of the first bottom plate 11; both the first vertical plate 12 and the second vertical plate 13 are provided with screw holes 16 for connecting the tractor; the front side of the third vertical plate 14 and the front side of the fourth vertical plate 15 are both connected with the rear side of the first bottom plate 11, and the third vertical plate 14 and the fourth vertical plate 15 are symmetrically arranged left and right; both the third vertical plate 14 and the fourth vertical plate 15 are provided with pin holes for the pin shaft 4 to pass through.
[0024] Further, in a preferred embodiment, two screw holes 16 are arranged on the first vertical plate 12, the two screw holes 16 are arranged in up and down direction, and are connected with the rear axle of the rear end of the tractor through two bolts; another two screw holes 16 are arranged on the second vertical plate 13, and are connected with the rear axle of the rear end of the tractor through another two bolts.
[0025] Further, in a preferred embodiment, the first connecting piece 1 further comprises a first limiting plate 17 and a first limiting column 18, the top side of the first limiting plate 17 is connected with the bottom side of the first bottom plate 11; the front end of the first limiting column 18 is connected with the rear side of the first limiting plate 17; the front end of the damping spring 3 abuts against the rear side of the first limiting plate 17, and is sleeved on the first limiting column 18.
[0026] Further, in a preferred embodiment, the front end of the first limiting column 18 is connected with the middle position of the rear side of the first limiting plate 17; the first limiting column 18 is cylindrical, and the damping spring 3 is interference fit with the first limiting column 18 to prevent the damping spring 3 from moving when subjected to external force. Preferably, the original length of the damping spring 3 is 20 cm, and the height of the first limiting column 18 is 6.5 cm to 7 cm.
[0027] Further, in a preferred embodiment, the second connecting piece 2 comprises a second bottom plate 21, a fifth vertical plate 22, a sixth vertical plate 23, a first horizontal plate 24 and a second horizontal plate 25, the rear side of the fifth vertical plate 22 is connected with the left side of the second bottom plate 21 by a round corner, the rear side of the sixth vertical plate 23 is connected with the right side of the second bottom plate 21 by a round corner, and the fifth vertical plate 22 and the sixth vertical plate 23 are arranged symmetrically; the front side of the first horizontal plate 24 is connected with the top side of the second bottom plate 21 by a round corner, and the front side of the second horizontal plate 25 is connected with the bottom side of the second bottom plate 21 by a round corner; the fifth vertical plate 22 and the sixth vertical plate 23 are both provided with pin holes for the pin shaft 4 to pass through; the first horizontal plate 24 and the second horizontal plate 25 are both provided with pin holes for connecting the traction rod, the front end of the traction rod is provided with a pin hole, the front end of the traction rod is arranged between the first horizontal plate 24 and the second horizontal plate 25, and the traction rod is hinged with the second connecting piece 2 by the pin shaft passing through the pin hole of the first horizontal plate 24, the pin hole of the traction rod and the pin hole of the second horizontal plate 25 at the same time, thereby realizing the rotation of the traction rod relative to the connecting piece 2 in the horizontal direction.
[0028] Further, in a preferred embodiment, the second connecting piece 2 further comprises a second limiting plate 26 and a second limiting column 27, the top side of the second limiting plate 26 is connected with the bottom side of the second horizontal plate 25; the rear end of the second limiting column 27 is connected with the front side of the second limiting plate 26; the rear end of the shock absorbing spring 3 abuts against the front side of the second limiting plate 26 and is sleeved on the second limiting column 27.
[0029] Further, in a preferred embodiment, the rear end of the second limiting column 27 is connected with the middle position of the front side of the second limiting plate 26; the second limiting column 27 is cylindrical, and the shock absorbing spring 3 is interference fit with the second limiting column 27 to prevent the shock absorbing spring 3 from moving when subjected to external force. Preferably, the original length of the shock absorbing spring 3 is 20 cm, and the height of the second limiting column 27 is 6.5 cm to 7 cm.
[0030] Further, in a preferred embodiment, the third vertical plate 14 and the fourth vertical plate 15 are arranged between the fifth vertical plate 22 and the sixth vertical plate 23; the left side of the third vertical plate 14 is attached to the right side of the fifth vertical plate 22, and the right side of the fourth vertical plate 15 is attached to the left side of the sixth vertical plate 23, and the third vertical plate 14 and the fourth vertical plate 15 play a role of limiting the horizontal movement of each other with the fifth vertical plate 22 and the sixth vertical plate 23. The pin shaft 4 passes through the pin holes on the fifth vertical plate 22, the third vertical plate 14, the fourth vertical plate 15 and the sixth vertical plate 23 at the same time, thereby hinging the first connecting piece 1 with the second connecting piece 2, and realizing the rotation of the traction rod relative to the connecting piece 1 in the vertical direction.
[0031] Further, in a preferred embodiment, the rear side of the third upright plate 14 and the rear side of the fourth upright plate 15 are both arc-shaped. When the first connecting member 1 and the second connecting member 2 rotate relative to each other, the arc-shaped side can provide a smoother contact surface, thereby reducing stress concentration caused by sharp edges or corner points. The arc-shaped side allows the rear side of the third upright plate 14 and the rear side of the fourth upright plate 15 to not interfere with the front side of the second bottom plate 21, thereby increasing the flexibility and range of motion of the mechanism.
[0032] Further, in a preferred embodiment, the front side of the fifth upright plate 22 and the front side of the sixth upright plate 23 are both arc-shaped. When the first connecting member 1 and the second connecting member 2 rotate relative to each other, the arc-shaped side can provide a smoother contact surface, thereby reducing stress concentration caused by sharp edges or corner points. The arc-shaped side allows the front side of the fifth upright plate 22 and the front side of the sixth upright plate 23 to not interfere with the front side of the first bottom plate 11, thereby increasing the flexibility and range of motion of the mechanism.
[0033] Further, in a preferred embodiment, the first upright plate 12, the second upright plate 13, the third upright plate 14, and the fourth upright plate 15 are all perpendicular to the first bottom plate 11.
[0034] Further, in a preferred embodiment, the second limiting plate 26 is perpendicular to the second cross plate 25; the second limiting plate 26 is located in front of the pin hole on the second cross plate 25; the fifth upright plate 22 is parallel to the sixth upright plate 23; the first cross plate 24 is parallel to the second cross plate 25; the plane in which the fifth upright plate 22 lies and the plane in which the sixth upright plate 23 lies are both perpendicular to the plane in which the second bottom plate 21 lies; the plane in which the first cross plate 24 lies and the plane in which the second cross plate 25 lie are both perpendicular to the plane in which the second bottom plate 21 lies.
[0035] Working principle:
[0036] The first connecting member 1 is connected to the rear end of the tractor through the screw holes 16 on the first upright plate 12 and the second upright plate 13. The second connecting member 2 is connected to the drawbar through the pin holes on the first cross plate 24 and the second cross plate 25. When the drawbar moves downward relative to the tractor, the drawbar will cause the second connecting member 2 to rotate downward about the pin shaft 4, thereby compressing the shock-absorbing spring 3. At this time, the shock-absorbing spring 3 absorbs vibration and impact energy through its elastic properties, thereby playing a buffering and shock-absorbing role. Moreover, it avoids the collision between the traction mechanism and the rear axle of the tractor, reduces the wear between components, and improves the efficiency of use. When the tractor is towing a trailer on uneven road surfaces, the tractor and the trailer will produce relatively large movements. In this case, the shock-absorbing spring 3 can effectively play a buffering and shock-absorbing role.
[0037] In the description of the utility model, it is necessary to explain, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the application when it is usually placed, only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as limiting the application.
[0038] The above is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and those skilled in the art should be able to realize that any equivalent replacement and obvious change obtained by applying the content of the utility model specification and drawings should be included in the protection scope of the utility model.
Claims
1. A tractor shock absorbing draft mechanism characterized by: The utility model provides a connecting device for tractor and drawbar, including first connecting piece (1), second connecting piece (2) and shock spring (3), first connecting piece (1) with second connecting piece (2) are hinged through pin shaft (4), first connecting piece (1) is used to connect tractor, and second connecting piece (2) is used to connect drawbar;The front end of shock spring (3) is against first connecting piece (1), and the rear end of shock spring (3) is against second connecting piece (2), and shock spring (3) is used to buffer the relative movement of first connecting piece (1) and second connecting piece (2).
2. The tractor damping draft mechanism of claim 1, wherein: The first connecting piece (1) includes first bottom plate (11), first vertical plate (12), second vertical plate (13), third vertical plate (14) and fourth vertical plate (15), the rear side of first vertical plate (12) is connected with the left end of the front side of first bottom plate (11), and the rear side of second vertical plate (13) is connected with the right end of the front side of first bottom plate (11); the first vertical plate (12) and the second vertical plate (13) are provided with screw holes (16) for connecting the tractor; the front side of third vertical plate (14) and the front side of fourth vertical plate (15) are connected with the rear side of first bottom plate (11), and third vertical plate (14) and fourth vertical plate (15) are symmetrically arranged; the third vertical plate (14) and the fourth vertical plate (15) are provided with pin holes for the pin shaft (4) to pass through.
3. The tractor damping draft mechanism of claim 2, wherein: The first connecting piece (1) further includes first limiting plate (17) and first limiting column (18), the top side of first limiting plate (17) is connected with the bottom side of first bottom plate (11); the front end of first limiting column (18) is connected with the rear side of first limiting plate (17); the front end of shock spring (3) is against the rear side of first limiting plate (17), and is sleeved on first limiting column (18).
4. A tractor damping draft mechanism according to claim 2 or 3, characterised in that: The second connecting piece (2) includes second bottom plate (21), fifth vertical plate (22), sixth vertical plate (23), first horizontal plate (24) and second horizontal plate (25), the rear side of fifth vertical plate (22) is connected with the left side of second bottom plate (21), the rear side of sixth vertical plate (23) is connected with the right side of second bottom plate (21), and the fifth vertical plate (22) and the sixth vertical plate (23) are symmetrically arranged; the front side of first horizontal plate (24) is connected with the top side of second bottom plate (21), and the front side of second horizontal plate (25) is connected with the bottom side of second bottom plate (21); the fifth vertical plate (22) and the sixth vertical plate (23) are provided with pin holes for the pin shaft (4) to pass through; the first horizontal plate (24) and the second horizontal plate (25) are provided with pin holes for connecting the drawbar.
5. The tractor damping draft mechanism of claim 4, wherein: The second connecting piece (2) further includes second limiting plate (26) and second limiting column (27), the top side of second limiting plate (26) is connected with the bottom side of second horizontal plate (25); the rear end of second limiting column (27) is connected with the front side of second limiting plate (26); the rear end of shock spring (3) is against the front side of second limiting plate (26), and is sleeved on second limiting column (27).
6. The tractor damping draft mechanism of claim 5, wherein: The fifth vertical plate (22) and the sixth vertical plate (23) are arranged between the first vertical plate (12) and the second vertical plate (13).
7. The tractor damping draft mechanism of claim 6, wherein: The rear side edges of the third vertical plate (14) and the fourth vertical plate (15) are in arc shape.
8. The tractor damping draft mechanism of claim 7, wherein: The front side edges of the fifth vertical plate (22) and the sixth vertical plate (23) are in arc shape.
9. The tractor damping draft mechanism of claim 2, wherein: The first vertical plate (12), the second vertical plate (13), the third vertical plate (14) and the fourth vertical plate (15) are perpendicular to the first bottom plate (11).