Screw device for adjusting traction point of hydraulic turnover plow

Abstract

The utility model discloses a screw rod device for adjusting a traction point of a hydraulic turnover plow, which is used for connecting an I-shaped beam and a plow body and comprises a left-handed screw rod and a right-handed screw rod which are connected through a sleeve, and further comprises a locking and fixing structure used for preventing the sleeve from freely rotating. According to the screw adjusting device, the locking fixing structure is arranged, so that the problems that the sleeve freely rotates and the screw is loosened due to vibration and impact force in the operation process of an existing screw adjusting device are effectively solved, the stability of the position of a traction point is ensured, and the linearity and depth uniformity of cultivation are improved.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic reversible plow technology, specifically, it relates to a screw device for adjusting the traction point of a hydraulic reversible plow. Background Technology

[0002] In agricultural production, the hydraulic reversible plow is a commonly used tillage machine, and its performance directly affects the quality and efficiency of tillage. During operation, the position of the traction point needs to be adjusted according to different soil conditions, tillage requirements, and tractor performance to ensure that the plow body can work stably and efficiently, guaranteeing the straightness and uniformity of tillage depth.

[0003] Currently, most hydraulic reversible plows on the market use screw adjustment mechanisms for adjusting the traction point. However, existing screw adjustment devices have some significant shortcomings. Firstly, the adjustment accuracy is low. The center distance between the pin holes at both ends of the existing screw is relatively small, and the screw pitch is relatively large, resulting in a large adjustment amount per turn when adjusting the traction point position, making precise fine-tuning difficult. In actual operation, even a small deviation in the traction point position can have a significant impact on tillage results, such as uneven furrows and inconsistent tillage depth, thus reducing the quality of cultivated land.

[0004] On the other hand, existing screw adjustment devices lack effective anti-loosening measures. During the operation of a hydraulic reversible plow, significant vibrations and impacts are generated, which can easily cause the screw to loosen and retract at the threaded connection, thus shifting the position of the traction point. Once the position of the traction point changes, the stress state of the plow body will change, thereby affecting the stability and straightness of tillage, increasing the labor intensity of operators and operating costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a screw device for adjusting the traction point of a hydraulic reversible plow.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A screw device for adjusting the traction point of a hydraulic reversible plow, used to connect an I-beam and a plow body, includes a left-hand screw and a right-hand screw, which are connected by a sleeve. It also includes a locking and fixing structure to prevent the sleeve from rotating freely.

[0008] Furthermore, one end of the left-hand lead screw is provided with a first pin hole for connection with the I-beam, and the other end is provided with an external left-hand thread; one end of the right-hand lead screw is provided with a second pin hole for connection with the plow body, and the other end is provided with an external right-hand thread.

[0009] Furthermore, the inner walls at both ends of the sleeve are respectively provided with inner left-hand threads and inner right-hand threads that mate with the outer left-hand thread and the outer right-hand thread.

[0010] Furthermore, a gasket is provided between the first and second pin holes and the contact surface of the pin nut, and the gasket is made of stainless steel or rubber.

[0011] Furthermore, the sleeve is provided with fastening holes, through which fasteners pass and abut against the left-hand lead screw and the right-hand lead screw in a direction perpendicular to the sleeve axis.

[0012] Furthermore, a detachable rotating handle is provided on the outer wall of the sleeve.

[0013] Furthermore, the locking and fixing structure includes a locking member and a locking pin, and the locking member is provided with a locking hole.

[0014] Furthermore, the locking member includes a connecting part and a fixing part. The connecting part includes a first connecting part and a second connecting part. The included angle between the first connecting part and the second connecting part is a set angle. The first connecting part is disposed on the pin of the left-hand lead screw or the right-hand lead screw. The second connecting part is connected to the fixing part. The fixing part is disposed on the sleeve. The fixing part is provided with a locking hole.

[0015] Furthermore, the set angle is an obtuse angle.

[0016] After adopting the above technical solution, the screw device for adjusting the traction point of a hydraulic reversible plow provided by this utility model has the following beneficial effects compared with the prior art.

[0017] (1) By setting a locking and fixing structure, this utility model effectively solves the problem of the sleeve rotating freely and the screw loosening due to vibration and impact during operation of the existing screw adjustment device, ensuring the stability of the traction point position and improving the straightness and depth uniformity of tillage.

[0018] (2) The inner walls of both ends of the sleeve of this utility model are respectively provided with inner left-hand thread and inner right-hand thread that cooperate with the outer left-hand thread and the outer right-hand thread, which provides a structural basis for adjusting the length of the screw, making it easy to adjust the position of the traction point according to the needs of different operations. When rotating the sleeve, the extension length of the left-hand screw and the right-hand screw can be adjusted to improve the adjustment efficiency. The thread fit is highly accurate and can achieve precise fine adjustment of the position of the traction point.

[0019] (3) A washer is provided between the contact surface of the first pin hole and the second pin hole and the nut of the hinge pin shaft. The addition of the washer reduces the friction between the contact surface of the pin hole and the nut, thereby improving the reliability of the connection and the service life of the device.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is an installation diagram of a screw device for adjusting the traction point of a hydraulic reversible plow according to this utility model;

[0023] Figure 2 This is a schematic diagram of the screw device for adjusting the traction point of a hydraulic reversible plow according to this utility model;

[0024] In the diagram: 1. I-beam;

[0025] 2. Plow body;

[0026] 3. Left-hand lead screw;

[0027] 4. Right-hand lead screw;

[0028] 5. Sleeve;

[0029] 6. First connecting part;

[0030] 7. Second connecting part;

[0031] 8. Fixing part;

[0032] 9. Locking pin;

[0033] 10. Fastening hole.

[0034] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] like Figures 1 to 2 As shown, this utility model provides a screw device for adjusting the traction point of a hydraulic reversible plow, used to connect the I-beam 1 and the plow body 2. It mainly includes a left-hand screw 3 and a right-hand screw 4, which are connected by a sleeve 5. It also includes a locking and fixing structure to prevent the sleeve 5 from rotating freely. By setting the locking and fixing structure, the problem of the sleeve 5 rotating freely and the screw loosening due to vibration and impact during operation of the existing screw adjustment device is effectively solved, ensuring the stability of the traction point position and improving the straightness and depth uniformity of tillage.

[0040] Furthermore, one end of the left-hand lead screw 3 is provided with a first pin hole for connection with the I-beam 1, and the other end is provided with an external left-hand thread. One end of the right-hand lead screw 4 is provided with a second pin hole for connection with the plow body 2, and the other end is provided with an external right-hand thread. The inner walls of both ends of the sleeve 5 are respectively provided with internal left-hand threads and internal right-hand threads that mate with the external left-hand threads and external right-hand threads. The diameters of the first pin hole and the second pin hole are larger than the diameter of the pin shaft, which reduces the single-turn adjustment amount and improves accuracy. This provides a structural basis for adjusting the screw length, making it easy to adjust the position of the traction point according to different operational needs. When the sleeve 5 is rotated, the extension lengths of the left-hand lead screw 3 and the right-hand lead screw 4 can be adjusted, improving adjustment efficiency. The thread fit has high precision, enabling precise fine-tuning of the traction point position.

[0041] Furthermore, a washer is provided between the contact surfaces of the first and second pin holes and the nut of the hinge pin shaft. The washer is made of stainless steel or rubber. The addition of the washer to the contact surfaces of the pin shaft nut and the pin hole reduces the friction between the contact surfaces of the pin hole and the nut, thereby improving the reliability of the connection and the service life of the device.

[0042] Furthermore, the sleeve 5 is provided with a fastening hole 10. The fastener passes through the fastening hole 10 in a direction perpendicular to the axis of the sleeve 5 and abuts against the left-hand screw 3 and the right-hand screw 4. The cooperation between the fastening hole 10 and the fastener further strengthens the connection between the left-hand screw 3, the right-hand screw 4 and the sleeve 5 after the screw is adjusted to the appropriate position, preventing the threaded connection from loosening due to long-term vibration, enhancing the structural stability of the entire device, and ensuring that the traction point position remains fixed after adjustment. Preferably, the contact surface between the fastening hole 10 and the fastener is provided with a gasket to improve the service life of the device.

[0043] Furthermore, the outer wall of the sleeve 5 is provided with a detachable rotating handle. The detachable rotating handle provides the operator with a convenient point of force application, making it easy to rotate the sleeve 5 to adjust the position of the traction point, which enhances the strength of operation and improves the adjustment efficiency. Moreover, the handle is detachable and can be removed when adjustment is not needed, avoiding space occupation or interference, and adapting to different working scenarios.

[0044] Furthermore, the locking and fixing structure includes a locking element and a locking pin 9. The locking element is provided with a locking hole. The cooperation between the locking element and the locking pin 9 constitutes a reliable locking structure. By inserting the locking pin 9 into the locking hole, the locking element is fixed, thereby restricting the rotation of the sleeve 5, further enhancing the anti-loosening effect, ensuring that the sleeve 5 will not rotate freely in complex operating environments, maintaining the stability of the traction point position, and ensuring the quality of tillage.

[0045] Furthermore, the locking component includes a connecting part and a fixing part 8. The connecting part includes a first connecting part 6 and a second connecting part 7. The included angle between the first connecting part 6 and the second connecting part 7 is a set angle. The first connecting part 6 is set on the pin of the left-hand lead screw 3 or the right-hand lead screw 4. The second connecting part 7 is connected to the fixing part 8. The fixing part 8 is set on the sleeve 5. The fixing part 8 is provided with a locking hole. When the screws at both ends are adjusted to a suitable position, the sleeve is fixed in place by the locking component and the locking pin, so that shaking will affect the operation.

[0046] Furthermore, the angle is set to an obtuse angle, preferably between 120° and 150°, which makes the connection structure of the locking part more reasonable, and can form a larger support surface and a stable force-bearing structure between the pin and the sleeve 5, enhance the deformation resistance of the locking part, better withstand external forces during operation, ensure the long-term effective operation of the locking and fixing device, and prevent the sleeve 5 from loosening.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A screw device for adjusting the traction point of a hydraulic reversible plow, used to connect an I-beam and a plow body, comprising a left-hand screw and a right-hand screw, wherein the left-hand screw and the right-hand screw are connected by a sleeve, characterized in that: It also includes a locking and fixing structure to prevent the sleeve from rotating freely.

2. The screw device for adjusting the traction point of a hydraulic reversible plow according to claim 1, characterized in that: One end of the left-hand lead screw is provided with a first pin hole for connection with the I-beam, and the other end is provided with an external left-hand thread. One end of the right-hand lead screw is provided with a second pin hole for connection with the plow body, and the other end is provided with an external right-hand thread.

3. The screw device for adjusting the traction point of a hydraulic reversible plow according to claim 2, characterized in that: The inner walls at both ends of the sleeve are respectively provided with inner left-hand threads and inner right-hand threads that mate with outer left-hand threads and outer right-hand threads.

4. The screw device for adjusting the traction point of a hydraulic reversible plow according to claim 2, characterized in that: A gasket is provided between the first and second pin holes and the contact surface of the pin nut. The gasket is made of stainless steel or rubber.

5. The screw device for adjusting the traction point of a hydraulic reversible plow according to claim 1, characterized in that: The sleeve is provided with fastening holes, and fasteners are inserted through the fastening holes in a direction perpendicular to the sleeve axis and abut against the left-hand lead screw and the right-hand lead screw.

6. The screw device for adjusting the traction point of a hydraulic reversible plow according to claim 5, characterized in that: The sleeve has a detachable rotating handle on its outer wall.

7. The screw device for adjusting the traction point of a hydraulic reversible plow according to claim 1, characterized in that: The locking and fixing structure includes a locking member and a locking pin, and the locking member is provided with a locking hole.

8. The screw device for adjusting the traction point of a hydraulic reversible plow according to claim 7, characterized in that: The locking component includes a connecting part and a fixing part. The connecting part includes a first connecting part and a second connecting part. The included angle between the first connecting part and the second connecting part is a set angle. The first connecting part is disposed on the pin of a left-hand lead screw or a right-hand lead screw. The second connecting part is connected to the fixing part. The fixing part is disposed on a sleeve and has a locking hole.

9. The screw device for adjusting the traction point of a hydraulic reversible plow according to claim 8, characterized in that... The set angle is an obtuse angle.

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