Rear suspension buffering middle pull rod of tractor
By designing the rear suspension buffered mid-tie rod of the tractor, the spring absorbs vibration and adjusts the length of the mid-tie rod, the stability and service life problems caused by hard connection of the traditional mid-tie rod are solved, and the connection stability and efficiency of the tractor and agricultural machinery are improved, reducing the stability and efficiency of the connection between the tractor and the agricultural machinery. The cost.
Patent Information
- Application Number
- CN202421228117.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The pull rods of the rear suspension of traditional tractors are easily damaged in uneven terrain and vibration of agricultural machinery due to hard connection, which affects the connection stability and service life of the tractor and agricultural machinery.
A tractor rear suspension buffer mid-tie rod is designed, adopting an adjustment tube, axial rod, spring and ball head structure, absorbing vibration energy through the spring, reducing the impact on the tractor hydraulic system, and adjusting the mid-tie rod length through the rotating handle to adapt to different Agricultural machinery and equipment.
It improves the connection stability and working efficiency between the tractor and the agricultural machinery, extends the service life of parts, and reduces production costs.
Smart Images
Figure CN222246735U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tractor tools, in particular to a buffer middle pull rod for rear suspension of a tractor. Background Art
[0002] In the process of modern agricultural mechanization, tractors are one of the important agricultural implements, and their performance and efficiency directly affect the benefits of agricultural production. Especially during the busy farming season, tractors need to work for a long time and at a high intensity, so their stability and reliability are particularly important. As a key component connecting the tractor and agricultural implements, the center tie rod is not only related to the traction effect of the tractor on the agricultural implements, but also directly affects the stability and safety of the agricultural implements during operation.
[0003] The traditional way of connecting the center tie rod of the rear suspension of a tractor is mainly hard connection, that is, the tractor and the agricultural implement are directly connected together through a rigid tie rod. However, in the actual working process, due to factors such as uneven terrain and vibration of agricultural implements, the hard-connected center tie rod is often subjected to greater impact and vibration, which not only easily leads to damage to the center tie rod, but also affects the connection stability between the tractor and the agricultural implement, thereby affecting the working efficiency and service life of the agricultural implement. Summary of the invention
[0004] The utility model aims to solve the above problems and shortcomings and provide a tractor rear suspension buffer center tie rod, which can effectively reduce the impact or vibration between the tractor and the towed agricultural machinery. It not only improves the safety of the tractor and the towed agricultural machinery in actual production, but also prolongs the service life of each component of the tractor and the center tie rod, and reduces the production cost.
[0005] To achieve the above purpose, the technical solution adopted is:
[0006] The utility model provides a buffer middle tie rod for rear suspension of a tractor, comprising:
[0007] An adjusting tube, one end of which is connected to a first ball head, and a strip-shaped hole is formed on the adjusting tube;
[0008] A shaft rod, the shaft rod is slidably sleeved in the adjusting tube, and a blind hole is opened on the shaft rod; a bayonet is used to pass through the strip hole and inserted in the blind hole to limit the sliding stroke of the shaft rod; a second ball head is connected to one end of the shaft rod;
[0009] and a spring, which is sleeved on the adjusting tube and the axial rod;
[0010] The first ball head and the second ball head are connected to the agricultural implement and the tractor respectively.
[0011] According to the utility model of the tractor rear suspension buffer center tie rod, further, one end of the adjustment tube is provided with a reverse threaded hole, the first ball head is provided with a reverse thread matching the reverse threaded hole, and the first ball head is threadedly connected to the adjustment tube.
[0012] According to the utility model of the tractor rear suspension buffer middle tie rod, further, a fixed pressure ring is arranged on the outer side of one end of the adjusting tube, and the spring contacts the fixed pressure ring.
[0013] According to the utility model of the tractor rear suspension buffer center tie rod, further, one end of the axial rod is provided with a positive thread hole, the second ball head is provided with a positive thread matching the positive thread hole, and the second ball head is threadedly connected to the axial rod.
[0014] According to the utility model of the tractor rear suspension buffer center tie rod, further, the second ball head is threaded with a clamping nut, the second ball head positive thread section outside the axial rod is sleeved with a movable pressure ring, and the clamping nut is rotated to lock and fix the movable pressure ring and the spring.
[0015] According to the utility model of the tractor rear suspension buffer center tie rod, further, the first ball head and the second ball head are both plugged with pins.
[0016] According to the utility model of the tractor rear suspension buffer center tie rod, further, a handle is arranged on the outer side of the adjustment tube.
[0017] According to the utility model of the tractor rear suspension buffer center tie rod, further, the adjustment tube, the fixed pressure ring and the handle are an integrally formed structure.
[0018] The beneficial effects achieved by adopting the above technical solution are:
[0019] The utility model has a simple structure and strong practicality. The spring in the utility model can effectively absorb and consume vibration energy; when encountering a bumpy road section, the spring can alleviate the wear of the agricultural implement on the first and second ball head threads, and reduce the impact on the tractor hydraulic system; the length of the middle pull rod can be adjusted by rotating the handle to facilitate the connection between the tractor and different types of agricultural implements. The utility model has an ingenious structural design, which not only greatly improves the connection stability between the tractor and the agricultural implement, but also improves its working efficiency and service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. The drawings are only used to show some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.
[0021] Figure 1It is a structural schematic diagram of a tractor rear suspension buffer middle pull rod according to an embodiment of the utility model;
[0022] Figure 2 This is a schematic diagram of the connection structure of the adjusting tube and the axial rod of an embodiment of the utility model;
[0023] Figure 3 It is a schematic diagram of the structure of the regulating tube of an embodiment of the utility model;
[0024] Figure 4 This is a schematic structural diagram of an axial rod of an embodiment of the utility model;
[0025] Figure 5 It is a structural schematic diagram of a first ball head in an embodiment of the utility model;
[0026] Figure 6 It is a structural schematic diagram of the second ball head of an embodiment of the utility model.
[0027] The meanings of the numbers in the figure are:
[0028] 110. Adjusting tube, 111. Reverse threaded hole, 112. Bar hole, 113. Fixed pressure ring, 114. Handle;
[0029] 120. Axis rod, 121. Blind hole, 122. Normal threaded hole;
[0030] 130. Spring;
[0031] 140. Lock pin;
[0032] 150. first ball head, 151. reverse thread;
[0033] 160. Second ball head, 161. Normal thread, 162. Pin shaft;
[0034] 170.Tighten the nut;
[0035] 180. Movable pressure ring. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings of the specific embodiments of the utility model to clearly and completely describe the exemplary scheme of the utility model. Unless otherwise defined, the technical terms or scientific terms used in the utility model should be the common meanings understood by people with ordinary skills in the relevant field.
[0037] like Figure 1 and Figure 2As shown, the tractor rear suspension buffer middle pull rod of this embodiment includes an adjustment tube 110, an axle rod 120 and a spring 130. The right end of the adjustment tube 110 is connected with a first ball head 150, and a strip hole 112 is provided on the adjustment tube 110. The axle rod 120 is slidably sleeved in the adjustment tube 110, and a second ball head 160 is connected to the left end of the axle rod 120. A blind hole 121 is provided on the axle rod 120. When the axle rod 120 slides to the position where the blind hole 121 is located at the strip hole 112, a bayonet 140 is used to pass through the strip hole 112 and be inserted in the blind hole 121, thereby limiting the sliding stroke of the axle rod 120 so that it can only slide within the length range of the strip hole 112. The spring 130 is sleeved on the adjustment tube 110 and the axle rod 120. When the adjustment tube 110 and the axle rod 120 slide relative to each other, the spring 130 is telescopically deformed together with them.
[0038] Furthermore, the connection between the bayonet 140 and the blind hole 121 is an interference fit, that is, the bayonet 140 passes through the bar hole 112 and is fixedly inserted in the blind hole 121 to prevent the bayonet 140 from falling off from the blind hole 121, thereby preventing the axial rod 120 from falling off from the adjusting tube 110.
[0039] like Figure 2 and Figure 6 As shown, a reverse threaded hole 111 is opened at the right end of the adjusting tube 110 , and a reverse thread 151 matching the reverse threaded hole 111 is arranged on the first ball head 150 , and the first ball head 150 is threadedly connected to the adjusting tube 110 .
[0040] Furthermore, a clamping nut 170 is threadedly connected to the first ball head 150 , and the clamping nut 170 is rotated to make it in close contact with the right end of the adjustment tube 110 to prevent the first ball head 150 and the adjustment tube 110 from being separated due to vibration.
[0041] like Figure 1-Figure 3 As shown, a fixed pressing ring 113 is provided on the outer side of the right end of the regulating tube 110 , and the spring 130 contacts the fixed pressing ring 113 .
[0042] like Figure 1 , Figure 4 and Figure 5 As shown, a positive thread hole 122 is opened at the left end of the shaft rod 120 , and a positive thread 122 matching the positive thread hole 122 is provided on the second ball head 160 , and the second ball head 160 is threadedly connected to the shaft rod 120 .
[0043] A clamping nut 170 is threadedly connected to the second ball head 160 , and a movable pressure ring 180 is sleeved on the threaded section of the second ball head 160 outside the shaft 120 . The clamping nut 170 is rotated to lock the movable pressure ring 180 and the spring 130 , thereby fixing the spring 130 between the movable pressure ring 180 and the fixed pressure ring 113 .
[0044] When the middle pull rod does not need to work, the clamping nut 170 can be rotated away from the shaft rod 120 to adjust the spring 130 to a relaxed state to prevent the spring 130 from being overly fatigued and losing its elasticity. When the middle pull rod needs to work, the clamping nut 170 can be rotated close to the shaft rod 120 to adjust the spring 130 to a tight state so that the spring 130 has sufficient elastic force.
[0045] like Figure 5 and Figure 6 As shown, the first ball head 150 and the second ball head 160 are both plugged with a pin shaft 162 , and the middle tie rod is connected to the agricultural implement and the tractor respectively through the pin shaft 162 of the first ball head 150 and the second ball head 160 .
[0046] like Figure 3 As shown, a handle 114 is provided on the outside of the adjustment tube 110 .
[0047] Furthermore, since the adjusting tube 110 is provided with a reverse threaded hole 111, and the axial rod 120 is provided with a positive threaded hole 122, when the handle 114 is turned forward, the first ball head 150 and the second ball head 160 will be screwed in the opposite direction along the axial direction of the middle rod, and the first ball head 150 and the second ball head 160 will be close to each other, and the overall length of the middle rod will be reduced; when the handle 114 is turned backward, the first ball head 150 and the second ball head 160 will be screwed in the positive direction along the axial direction of the middle rod, and the first ball head 150 and the second ball head 160 will be away from each other, and the overall length of the middle rod will be increased. By turning the handle 114, the length of the rod in this embodiment can be adjusted.
[0048] like Figure 2 and Figure 3 As shown, the adjustment tube 110, the fixed pressure ring 113 and the handle 114 are an integrally formed structure, thereby ensuring the firmness of the connection between the three.
[0049] When the tractor and the agricultural implement connected by the pull rod of the utility model pass through a bumpy road section, the falling force generated by the agricultural implement will squeeze the adjustment tube 110. At this time, the axial rod 120 slides in the adjustment tube 110, and the spring 130 is compressed and deformed and generates elastic force in the opposite direction, thereby achieving the effect of buffering and shock absorption.
[0050] Furthermore, the range of compression deformation of the spring 130 is the length of the strip hole 112 on the adjusting tube 110. The length of the strip hole 112 is changed to adjust the deformable range of the spring 130, so that the pull rod of the utility model is suitable for different agricultural activities.
[0051] How this application works is:
[0052] Assembly of the middle tie rod:
[0053] First, the shaft rod 120 is sleeved in the adjusting tube 110, and the bayonet pin 140 is inserted into the counterbore 113 through the strip hole 140, so as to realize the sliding connection between the shaft rod 120 and the adjusting tube 110;
[0054] Secondly, the spring 130 is sleeved onto the shaft rod 120 and the adjusting tube 110 , and the spring 130 is kept in contact with the fixed pressure ring 113 of the adjusting tube 110 ;
[0055] Next, the clamping nut 170 and the movable pressure ring 180 are sequentially installed on the second ball head 160, and the second ball head 160 is screwed into the positive threaded hole 122 of the shaft 120. Then, the clamping nut 170 is rotated to lock the movable pressure ring 180 and the spring 130, so that the spring 130 is fixed between the movable pressure ring 180 and the fixed pressure ring 113;
[0056] Finally, the first ball head 150 is screwed into the reverse threaded hole 111 of the adjusting tube 110 , and the assembly of the center tie rod is completed.
[0057] After the middle tie rod is assembled, it is connected to the agricultural implement and the tractor through the first ball head 150 and the second ball head 160 respectively, and then used for agricultural production activities. When the tractor encounters a bumpy road section, the downward force generated by the agricultural implement will squeeze the adjustment tube 110. At this time, the spring 130 will be compressed and shrink and generate elastic force in the opposite direction, thereby reducing the impact damage to the thread of the first ball head 150 (second ball head 160), reducing the impact damage to the tractor hydraulic system, and extending the service life of each component.
[0058] The technical solution of the utility model is described above in combination with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
[0059] In the description of the present invention, it should be understood that the expressions “first” and “second” are used to describe the various elements of the present invention and do not represent any limitation on order, quantity or importance, but are only used to distinguish one component from another.
[0060] It should be noted that when one element is “connected”, “coupled” or “connected” to another element, it may mean that they are directly connected, coupled or connected, but it should be understood that there may be intermediate elements between the two; that is, the positional relationships of direct connection and indirect connection are covered.
[0061] It should be noted that the use of "a" or "an" and similar words does not necessarily indicate a quantitative limitation. "Include" or "comprising" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.
[0062] It should be noted that terms such as "up", "down", "left" and "right" indicating orientation or positional relationship are only used to indicate relative positional relationship. This is for the convenience of describing the present utility model, and does not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0063] The preferred embodiments for implementing the present invention have been described in detail above, but it should be understood that the role of these embodiments is only to exemplify, and is not intended to limit the scope, applicability or configuration of the present invention in any way. The protection scope of the present invention is defined by the attached claims and their equivalents. A person of ordinary skill in the art can make many changes to the above embodiments under the guidance of the present invention, and these changes all fall within the protection scope of the present invention.
Claims
1. A tractor rear suspension buffer middle tie rod, characterized in that: include: An adjusting tube, one end of which is connected to a first ball head, and a strip-shaped hole is formed on the adjusting tube; A shaft rod, the shaft rod is slidably sleeved in the adjusting tube, and a blind hole is opened on the shaft rod; a bayonet is used to pass through the strip hole and inserted in the blind hole to limit the sliding stroke of the shaft rod; a second ball head is connected to one end of the shaft rod; and a spring, which is sleeved on the adjusting tube and the axial rod; The first ball head and the second ball head are connected to the agricultural implement and the tractor respectively.
2. A tractor rear suspension buffer middle tie rod according to claim 1, characterized in that: A reverse threaded hole is formed at one end of the adjusting tube, a reverse thread matching the reverse threaded hole is formed on the first ball head, and the first ball head is threadedly connected to the adjusting tube.
3. A tractor rear suspension buffer middle tie rod according to claim 2, characterized in that: A fixed pressure ring is arranged on the outer side of one end of the regulating tube, and the spring contacts the fixed pressure ring.
4. The tractor rear suspension buffer middle tie rod according to claim 1, characterized in that: A positive thread hole is formed at one end of the axial rod, a positive thread matching the positive thread hole is formed on the second ball head, and the second ball head is threadedly connected to the axial rod.
5. A tractor rear suspension buffer middle tie rod according to claim 4, characterized in that: A clamping nut is threadedly connected to the second ball head, and a movable pressure ring is sleeved on the second ball head normal thread section outside the axial rod. The clamping nut is rotated to lock and fix the movable pressure ring and the spring.
6. The tractor rear suspension buffer middle tie rod according to claim 1, characterized in that: The first ball head and the second ball head are both plugged with pins.
7. The tractor rear suspension buffer middle tie rod according to claim 3, characterized in that: A handle is arranged on the outer side of the adjusting tube.
8. The tractor rear suspension buffer middle tie rod according to claim 7, characterized in that: The adjusting tube, the fixing pressure ring and the handle are an integrally formed structure.