Hydraulic buffering depth limiting wheel

Abstract

The utility model discloses a hydraulic buffering depth limiting wheel which solves the problems that in the prior art, turnover of a depth limiting wheel completely depends on self weight, a connecting piece is prone to being damaged, and the operation depth cannot be adjusted in real time. The depth limiting device comprises a depth limiting adjusting assembly, a depth limiting clamping plate is installed on the depth limiting adjusting assembly, a turnover control assembly is connected to the depth limiting clamping plate, a depth limiting wheel set matched with the depth limiting adjusting assembly is connected to the turnover control assembly, and a turnover buffering assembly matched with the depth limiting wheel set is further connected to the turnover control assembly. The working depth can be adjusted through the depth limiting adjusting assembly, the overturning control assembly controls overturning of the depth limiting wheel, the overturning buffering assembly can buffer the overturned depth limiting wheel, stability is good, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a hydraulic buffer depth-limiting wheel for adjusting the operating depth of a plow. Background Art

[0002] A plow is a land cultivation tool, and its main function is to turn over and break up the soil. A plow with birch as its main working part is called a birch plow. For a long time, the main tool used for land cultivation is the birch plow. The birch plow has the earliest history, the largest number, and the most widely used in the world; it also uses more energy for cultivation every year than any other working machinery. In field operations, in theory, the plowing depth of the plow can be adjusted by the traction line according to the principle of mechanical balance. Changing the traction line can change the plow's entry angle into the soil, thereby changing the plowing depth. However, in actual operations, the balance of forces is often very unstable due to uneven surface or uneven soil quality, so depth limiting wheels are often used to control the plowing depth. The plowing depth can be changed by raising or lowering the position of the depth limiting wheel to change the vertical distance from the lower edge of the wheel to the supporting surface of the plow bottom. When the plow is working normally, the hydraulic lifter handle should be in a floating position. If force adjustment is used, the plowing depth is controlled by the tractor hydraulic lifter handle. The existing depth limiting wheel can be turned over, but when the depth limiting wheel turns over with the plow, it relies on its own weight to turn over backward, impacting the connecting components, which is easy to cause damage to the connecting parts. In addition, the tillage depth adjustment of the existing depth limiting wheel mostly relies on the fixed adjustment of the pin shaft, and cannot be adjusted in real time, which has certain limitations.

[0003] In the prior art, a Chinese utility model patent with publication number CN 214125878 U and publication date 2021.09.07 discloses a plow depth limiting wheel buffer device, which includes a depth limiting wheel assembly hinged on the plow beam and a position limiting buffer mechanism, and a depth regulating mechanism is provided on the depth limiting wheel assembly, and the depth regulating mechanism corresponds to the position limiting buffer mechanism. Although the patent discloses a position limiting buffer mechanism, the flipping in the patent still relies on self-weight flipping, which has certain limitations. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a hydraulic buffer depth limiting wheel, which solves the problem that the depth limiting wheel in the prior art flips over completely relying on its own weight, which easily damages the connecting parts, and cannot adjust the working depth in real time.

[0005] The technical solution of the utility model is achieved as follows: a hydraulic buffer depth-limiting wheel for adjusting the operating depth of a plow comprises a depth-limiting adjustment component, a depth-limiting clamping plate is installed on the depth-limiting adjustment component, a flipping control component is connected to the depth-limiting clamping plate, a depth-limiting wheel group cooperating with the depth-limiting adjustment component is connected to the flipping control component, and a flipping buffer component cooperating with the depth-limiting wheel group is also connected to the flipping control component.

[0006] Furthermore, the depth limit adjustment assembly includes a depth limit bracket and a hydraulic motor, both of which are connected to the depth limit clamp, a screw is connected to the hydraulic motor, the other end of the screw is rotatably connected to the depth limit bracket, and a limit position assembly is connected to the screw.

[0007] Furthermore, the limiting assembly includes an internal threaded sleeve, which is threadedly connected to the lead screw, and a limited depth slider is connected to the internal threaded sleeve.

[0008] Furthermore, the flip control assembly includes a telescopic member and a connecting kit, one end of the telescopic member is connected to the depth limiting splint, the other end of the telescopic member is rotatably connected to the connecting kit, the connecting kit is rotatably connected to the depth limiting splint, and the connecting kit is connected to a flip axis.

[0009] Furthermore, the connection kit includes a sleeve, the outer wall of which is connected to a connecting ear plate that cooperates with the flip buffer assembly, the sleeve is connected to a connecting block that is connected to the telescopic member, and the connecting block is rotatably connected to the depth limiting clamp.

[0010] Furthermore, the telescopic member is a hydraulic telescopic cylinder, and the hydraulic telescopic cylinder is provided with a flow valve for detecting the extension length.

[0011] Furthermore, the rollover buffer assembly includes two symmetrically arranged buffer blocks, a spring is connected between the two buffer blocks, the two buffer blocks are hinged on the connecting ear plate, and cooperate with the depth limiting wheel set.

[0012] Furthermore, the buffer block is connected to a limiting column.

[0013] Furthermore, the depth limiting wheel group includes a depth limiting leg, the upper part of the depth limiting leg is transmission connected to the flip control assembly, the depth limiting leg is connected to a stopper that cooperates with the depth limiting slider, and the lower part of the depth limiting leg is connected to the depth limiting wheel.

[0014] Furthermore, the depth limiting leg includes a connecting plate and an L-shaped plate, one end of the connecting plate is connected to the flip shaft, and the other end of the connecting plate is connected to the L-shaped plate.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model adopts a depth limiting adjustment component to adjust the working depth, a flip control component to control the flipping of the depth limiting wheel, and a flip buffer component to buffer the flipped depth limiting wheel, so the utility model has good stability and long service life.

[0017] 2. The depth limit adjustment component controls the depth limit slider that cooperates with the depth limit wheel group through the cooperation of the hydraulic motor and the screw, thereby adjusting the working depth.

[0018] 3. The backward flipping function of the flip control assembly is realized by a hydraulic cylinder, which has higher reliability than the conventional backward flipping structure relying on its own weight.

[0019] 4. In the rollover buffer assembly, a spring is arranged between the two buffer blocks. When the depth limiting wheel flips, it contacts the buffer block. The spring can buffer the buffer block and the depth limiting wheel, thereby protecting the depth limiting wheel connection assembly and realizing the rollover buffer function of the depth limiting wheel during the flipping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0022] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0023] Figure 3 This is the depth limiting state diagram A of the present utility model.

[0024] Figure 4 This is the flip state diagram B of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the depth limit adjustment component.

[0026] Figure 6 This is a usage status diagram of the depth limit adjustment component.

[0027] Figure 7 This is a diagram showing the coordination between the flip buffer assembly and the depth limiting wheel assembly.

[0028] In the figure: 1. hydraulic cylinder, 2. depth limiting slider, 2-1. internal threaded sleeve, 3. stopper, 4. depth limiting bracket, 5. depth limiting leg, 5-1. connecting plate, 6. lead screw, 7. hydraulic motor, 8. buffer block, 8-1. limiting column, 9. spring, 10. telescopic part, 11. connecting kit, 12. connecting ear plate, 13. flip axis. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1 and Figure 2 As shown, in Example 1, a hydraulic buffer depth-limiting wheel for adjusting the working depth of a plow comprises a depth-limiting adjustment component, a depth-limiting clamping plate 13 is installed on the depth-limiting adjustment component, the depth-limiting clamping plate 13 is two symmetrically arranged connecting plates, the two connecting plates are connected by connecting bolts, and the two connecting plates are detachably connected to the main shaft of the reversing plow, the depth-limiting clamping plate 13 is connected to a reversing control component, the reversing control component is connected to a depth-limiting wheel group matched with the depth-limiting adjustment component, and the reversing control component is also connected to a reversing buffer component matched with the depth-limiting wheel group. The depth-limiting adjustment component can be used to adjust the working depth, the reversing control component controls the reversing of the depth-limiting wheel, and the reversing buffer component can buffer the reversing depth-limiting wheel, with good stability and long service life.

[0031] like Figure 3 and Figure 4 As shown, in Example 2, a hydraulic buffer depth-limiting wheel for adjusting the working depth of a plow is different from the technical solution of Example 1 in that the depth-limiting adjustment component includes a depth-limiting bracket 4 and a hydraulic motor 7, both of which are connected to a depth-limiting clamping plate 13, a lead screw 6 is connected to the hydraulic motor 7, the other end of the lead screw 6 is rotatably connected to the depth-limiting bracket 4, and a limited position component is connected to the lead screw 6. The limited position component includes an internal threaded sleeve 2-1, the internal threaded sleeve 2-1 is threadedly connected to the lead screw 6, and a limited depth slider 2 is connected to the internal threaded sleeve 2-1. The hydraulic motor 7 drives the lead screw 6 to rotate forward and reversely to control the forward and backward movement of the internal threaded sleeve 2-1, thereby driving the depth-limiting slider 2 to move left and right along the depth-limiting clamping plate 13, thereby controlling the angle between the depth-limiting slider 2 and the depth-limiting wheel group, and further adjusting the depth-limiting depth. The depth-limiting adjustment component controls the depth-limiting slider 2 that cooperates with the depth-limiting wheel group through the cooperation of the hydraulic motor 7 and the lead screw 6, thereby adjusting the working depth.

[0032] The other structures are the same as those in Example 1.

[0033] like Figure 5 and Figure 6As shown, embodiment 3 is a hydraulic buffer depth-limiting wheel for adjusting the working depth of a plow. The difference from the technical solution of embodiment 1 is that the flip control assembly includes a telescopic member 1 and a connecting kit. One end of the telescopic member 1 is connected to the depth-limiting clamp 13, and the other end of the telescopic member 1 is rotatably connected to the connecting kit. The connecting kit is rotatably connected to the depth-limiting clamp 13, and the connecting kit is connected to a flip shaft 10. The connecting kit 11 includes a sleeve, and a connecting ear plate 12 that cooperates with the flip buffer assembly is connected to the outer wall of the sleeve. The connecting ear plates 12 are two symmetrically arranged connecting plates, and the connecting ear plates 12 and the sleeve are an integrally formed structure. A connecting block connected to the telescopic member 1 is connected to the sleeve, and the connecting block is rotatably connected to the depth-limiting clamp 13. The telescopic member 1 is a hydraulic telescopic cylinder, and a flow valve for detecting the extension length is provided on the hydraulic telescopic cylinder. The flow valve converts the extension or retraction length of the oil cylinder through the accumulated flow value, and converts this to the operating depth through the existing flow valve monitoring software to display it in real time, so as to monitor the operating depth of the flip plow in real time and realize intelligent human-computer interaction. The rearward flipping function of the flip control assembly is realized by a hydraulic cylinder, which has higher reliability than the conventional structure that flips backward by its own weight. A detection device that can monitor the extension length of the hydraulic cylinder in real time is added to the hydraulic telescopic cylinder to monitor the operating depth of the flip plough in real time and realize intelligent human-machine interaction.

[0034] The other structures are the same as those in Example 2.

[0035] like Figure 7 As shown, Example 4 is a hydraulic buffer depth-limiting wheel for adjusting the working depth of a plow. The difference from the technical solution of Example 1 is that the flip buffer assembly includes two symmetrically arranged buffer blocks 8, a spring 9 is connected between the two buffer blocks 8, and the two buffer blocks 8 are hinged on the connecting ear plate 12 and matched with the depth-limiting wheel group. The buffer block 8 is provided with an arc groove that matches the shaft sleeve, and the connection points of the buffer block 8, the spring 9 and the connecting ear plate 12 are located on both sides of the arc groove. The upper part of the buffer block 8 is provided with an arc structure plate, which is used to contact with the depth-limiting wheel group to achieve buffering of the depth-limiting wheel group. The buffer block 8 is connected with a limiting column 9, and the limiting column 9 is connected to the buffer block 8, which can limit the position of the buffer block 8 and further limit the length of the buffer block 8 touching the depth-limiting wheel group. In the flipping buffer assembly, a spring 9 is arranged between the two buffer blocks 8. When the depth limiting wheel flips, it contacts the buffer block 8. The spring 9 can buffer the buffer block 8 and the depth limiting wheel, thereby protecting the depth limiting wheel connecting assembly and realizing the flipping buffer function of the depth limiting wheel during the flipping process.

[0036] In this embodiment, the depth limiting wheel assembly includes a depth limiting leg 5, the upper part of the depth limiting leg 5 is transmission-connected with the flip control assembly, the depth limiting leg 5 is connected with a stopper 3 that cooperates with the depth limiting slider 2, and the lower part of the depth limiting leg 5 is connected with the depth limiting wheel. The depth limiting leg 5 includes a connecting plate and an L-shaped plate, one end of the connecting plate is connected to the flip shaft 10, and the other end of the connecting plate is connected to the L-shaped plate. The connecting plate is fixedly connected to the connecting shaft by bolts, and then the L-shaped plate connected to the depth limiting wheel is fixedly connected to the flip shaft 10. The connecting plate is two symmetrically arranged rhombus plates, one of the side plates of the L-shaped plate is fixed between the two rhombus plates, and the stopper 3 is fixedly connected to the other side plate of the L-shaped plate.

[0037] The other structures are the same as those in Example 3.

[0038] The specific hydraulic backward turning process is as follows: the hydraulic cylinder 1 is shortened, the depth limiting wheel is changed from state A to state B, at this time, the depth limiting slider 2 and the stopper 3 in the depth limiting wheel are changed from the parallel relationship between the state A to the intersection relationship between the two in state B, so that during the turning process of the turning plow, the tire can turn from one side of the turning plow to the other side from the back, and the backward turning function of the depth limiting wheel is realized in sequence.

[0039] The specific process of hydraulic adjustment of the working depth is as follows: the depth limiting slider 2 moves to the right on the depth limiting bracket 4, the contact point between the depth limiting slider 2 and the stopper 3 moves to the right, the angle a between the depth limiting bracket 4 and the depth limiting leg 5 becomes smaller, and the depth limiting working depth increases. On the contrary, it decreases. The depth limiting slider 2 is assembled on the depth limiting bracket 4 through the screw 6, and the screw 6 is connected to the hydraulic motor 7. When the hydraulic motor 7 is S1 oil inlet and S2 oil outlet, the screw 6 rotates clockwise, the depth limiting slider 2 moves to the right, the angle a between the depth limiting bracket 4 and the depth limiting leg 5 becomes smaller, and the working depth increases; when the hydraulic motor 7 is S2 oil inlet and S1 oil outlet, the screw 6 rotates counterclockwise, the depth limiting slider 2 moves to the left on the depth limiting bracket 4, the angle a between the depth limiting bracket 4 and the depth limiting leg 5 becomes larger, and the working depth decreases.

[0040] The specific flipping buffering process is as follows: after the flipping plow is lifted, the depth limiting leg 5 descends due to its own weight. When the depth limiting leg 5 contacts the buffer block 9, the buffer block 9 rotates downward around the fulcrum S3 under the pressure of the depth limiting leg 5's own weight. During the rotation process, the distance L between the spring fulcrum Q1 and the spring fulcrum Q1 becomes smaller, and the force on the spring 9 becomes shorter. When the self-weight of the depth limiting leg 5 is equal to the elastic force generated by the spring 9, the depth limiting leg 5 stops descending, thereby realizing the descent buffering of the depth limiting leg 5 during the flipping process.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic buffer depth limiting wheel, characterized in that: The invention comprises a depth limiting adjustment component, a depth limiting clamping plate (13) is installed on the depth limiting adjustment component, a turnover control component is connected to the depth limiting clamping plate (13), a depth limiting wheel group cooperating with the depth limiting adjustment component is connected to the turnover control component, and a turnover buffer component cooperating with the depth limiting wheel group is also connected to the turnover control component.

2. The hydraulic buffer depth-limiting wheel according to claim 1, characterized in that: The depth limiting adjustment assembly comprises a depth limiting bracket (4) and a hydraulic motor (7), the depth limiting bracket (4) and the hydraulic motor (7) are both connected to a depth limiting clamp (13), a lead screw (6) is connected to the hydraulic motor (7), the other end of the lead screw (6) is rotatably connected to the depth limiting bracket (4), and a limit position assembly is connected to the lead screw (6).

3. The hydraulic buffer depth-limiting wheel according to claim 2, characterized in that: The limiter assembly comprises an internal thread sleeve (2-1), the internal thread sleeve (2-1) being threadedly connected to the lead screw (6), and the internal thread sleeve (2-1) being connected to a limited depth slider (2).

4. The hydraulic buffer depth limiting wheel according to claim 2 or 3, characterized in that: The flip control assembly comprises a telescopic member (1) and a connecting kit, wherein one end of the telescopic member (1) is connected to the depth limiting clamp (13), and the other end of the telescopic member (1) is rotatably connected to the connecting kit (11), the connecting kit (11) is rotatably connected to the depth limiting clamp (13), and the connecting kit is connected to a flip shaft (10).

5. The hydraulic buffer depth-limiting wheel according to claim 4, characterized in that: The connection kit (11) comprises a shaft sleeve, the outer wall of which is connected to a connection ear plate (12) that cooperates with the flip buffer assembly, the shaft sleeve is connected to a connection block that is connected to the telescopic member (1), and the connection block is rotatably connected to the depth limiting clamp (13).

6. The hydraulic buffer depth-limiting wheel according to claim 5, characterized in that: The telescopic member (1) is a hydraulic telescopic cylinder, and a flow valve for detecting the extension length is provided on the hydraulic telescopic cylinder.

7. The hydraulic buffer depth-limiting wheel according to claim 5 or 6, characterized in that: The rollover buffer assembly comprises two symmetrically arranged buffer blocks (8), a spring (9) is connected between the two buffer blocks (8), and the two buffer blocks (8) are hinged on the connecting ear plate (12) and cooperate with the depth limiting wheel set.

8. The hydraulic buffer depth-limiting wheel according to claim 7, characterized in that: The buffer block (8) is connected to a limiting column (8-1).

9. The hydraulic buffer depth-limiting wheel according to claim 2 or 3 or 5 or 6 or 8, characterized in that: The depth limiting wheel assembly comprises a depth limiting leg (5), the upper portion of the depth limiting leg (5) is drivingly connected to the flip control assembly, a stopper (3) cooperating with the depth limiting slider (2) is connected to the depth limiting leg (5), and the lower portion of the depth limiting leg (5) is connected to the depth limiting wheel.

10. The hydraulic buffer depth-limiting wheel according to claim 9, characterized in that: The depth limiting leg (5) comprises a connecting plate and an L-shaped plate, one end of the connecting plate is connected to the turning shaft (10), and the other end of the connecting plate is connected to the L-shaped plate.

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