Unilateral wheel depth limiting assembly of hydraulic turnover plow and depth limiting seat of hydraulic turnover plow

Abstract

The utility model relates to a hydraulic turnover plow, in particular to a unilateral wheel depth limiting assembly of a hydraulic turnover plow and a depth limiting seat of the hydraulic turnover plow, the depth limiting seat comprises a depth limiting pipe and a depth limiting shaft, a mounting hole and a bearing mounting position are arranged in the depth limiting pipe, and a joint bearing is arranged at the bearing mounting position. The depth limiting shaft penetrates through the mounting hole and is connected with each joint bearing, so that the problem of friction between the depth limiting pipe and the depth limiting shaft and the problem of impact on the depth limiting pipe when the hydraulic turnover plow is turned over are solved; according to the unilateral wheel depth limiting assembly of the hydraulic turnover plow, a depth limiting seat of the hydraulic turnover plow is applied, and friction loss between a depth limiting shaft and a depth limiting pipe is effectively avoided; in addition, the utility model further discloses a double-clamping depth limiting assembly of the hydraulic turnover plow, wherein the depth limiting seat of the hydraulic turnover plow is applied to the double-clamping depth limiting assembly.

Description

Technical Field

[0001] The utility model relates to a hydraulic reversible plough, in particular to a single-side wheel depth limiting assembly of the hydraulic reversible plough and a depth limiting seat of the hydraulic reversible plough. Background Art

[0002] During the tillage process of the flip plow, the depth limiting assembly plays the role of limiting the tillage depth and adjusting the tillage depth. When the flip plow is flipped left and right, the depth limiting assembly can be flipped to achieve the function of limiting the tillage depth and adjusting the depth of the left and right plow bodies after flipping. However, during the working time of the flip plow, the depth limiting assembly will be affected by the reaction force of the ground and the gravity during flipping, which will cause wear and impact on the depth limiting shaft and depth limiting tube in the depth limiting assembly.

[0003] Chinese patent application number 201821313040.1 discloses a depth-limiting walking wheel for a hydraulic reversible plow. This approach avoids direct friction between the depth-limiting shaft and the inner wall of the depth-limiting tube by adding a wear-resistant sleeve with an oil groove between the depth-limiting shaft and the inner wall of the depth-limiting tube of the depth-limiting assembly. The interference fit of the depth-limiting tube and the wear-resistant sleeve prevents rotation and friction. Instead, lubricating oil is injected into the depth-limiting tube through a refueling cup, which is then introduced into the oil groove on the inner wall of the wear-resistant sleeve to reduce friction between the depth-limiting shaft and the wear-resistant sleeve, thereby increasing the service life of the depth-limiting assembly. However, this technical solution, due to the friction between the wear-resistant sleeve and the depth-limiting shaft, while injecting lubricating oil into the depth-limiting tube through a refueling cup reduces friction between the depth-limiting shaft and the wear-resistant sleeve, inevitably results in wear. Furthermore, after a long period of operation, insufficient lubricating oil may occur, or lubricating oil may be forgotten, resulting in dry wear between the depth-limiting shaft and the wear-resistant sleeve, significantly reducing the service life of the depth-limiting assembly.

[0004] Chinese patent application number 201821313981.5 discloses a novel depth-limiting travel mechanism for a reversible plow. The depth-limiting shaft and depth-limiting legs are connected via a depth-limiting adapter. This reduces the weight of the reversible plow and reduces the impact on the plow. However, this method makes the reversible plow's connection structure more complex, resulting in a higher probability of failure and maintenance difficulty.

[0005] To address this issue, a single-side wheel depth limiting assembly for a hydraulic reversible plough is provided, and a depth limiting seat structure for the hydraulic reversible plough is also provided. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a single-side wheel depth limiting assembly of a hydraulic reversible plough and a depth limiting seat of the hydraulic reversible plough, thereby reducing the impact and wear on the depth limiting assembly when the reversible plough is working.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a single-side wheel depth-limiting assembly for a hydraulically operated reversible plow, comprising a depth-limiting splint, a depth-limiting tube, and a depth-limiting shaft. The depth-limiting splint is provided with a depth-limiting tube, the depth-limiting tube having a mounting hole disposed therein. The depth-limiting tube has at least two bearing mounting positions disposed therein along the mounting hole, the bearing mounting positions communicating with the mounting hole and provided with mounting bearings. The depth-limiting shaft passes through the mounting hole and is connected to the mounting bearings. The depth-limiting shaft has a depth-limiting leg connector disposed outside the mounting hole. The depth-limiting splint is further provided with a reversible plow connection position. The depth-limiting shaft is disposed within the depth-limiting tube and connected to the at least two mounting bearings. The mounting bearings effectively prevent friction between the depth-limiting shaft and the depth-limiting tube, thereby reducing maintenance, transportation, and related labor costs.

[0008] As a preferred solution, the depth limit tube is provided with an oil filling hole, which is connected to each bearing mounting position and is provided with an oil filling cup. Lubricating oil can be added to each mounting bearing through the oil filling hole, which is beneficial to the maintenance of the depth limit assembly.

[0009] As a preferred solution, the mounting bearings are spherical plain bearings. Bearing mounting locations are provided at opposite ends of the depth-limiting tube, each housing a spherical plain bearing. An oil injection port is provided between the two bearing mounting locations. Using two radial spherical plain bearings not only solves the problems of existing depth-limiting assemblies but also reduces equipment costs.

[0010] As a preferred solution, the mounting bearing is a radial spherical plain bearing, which is preferably a radial spherical plain bearing, but can also be other types of spherical plain bearings, such as tapered roller bearings, deep groove ball bearings, needle roller and thrust ball bearings, and composite bearings.

[0011] As a preferred solution, bearing mounting grooves are provided at opposite ends of the depth-limiting tube. The bearing mounting grooves are circular grooves with an inner diameter larger than the diameter of the mounting hole. The bearing mounting grooves serve as bearing mounting locations, and a sealing mechanism is provided within the bearing mounting grooves. The sealing mechanism cooperates with the inner end surface of the bearing mounting groove and the outer end surface of the depth-limiting shaft to seal the mounting bearing within the bearing mounting groove. After the radial spherical plain bearing or other type of mounting bearing is installed in the bearing mounting groove, the sealing mechanism is used to seal the radial spherical plain bearing, thereby ensuring normal operation of the radial spherical plain bearing and preventing lubricating oil from leaking.

[0012] As a preferred solution, the packaging mechanism includes a sealing gasket, which is annular and sleeved on the depth-limiting shaft, and the outer end surface of the sealing gasket contacts the inner end surface of the bearing mounting groove.

[0013] As a preferred solution, an annular groove is provided on the outer end face of the sealing gasket, and a sealing ring is sleeved on the outside of the sealing gasket. The sealing ring is in the annular groove and contacts the inner end face of the bearing mounting groove.

[0014] As a preferred solution, the depth-limiting leg connector is provided with a depth-limiting leg, the depth-limiting splint is provided with a depth-limiting stopper, and a depth-limiting elastic member is provided between the depth-limiting leg and the depth-limiting stopper. The depth-limiting splint is provided with a connecting chain connected to the depth-limiting leg. The depth-limiting elastic member elastically supports the depth-limiting leg and the depth-limiting splint.

[0015] Based on the same inventive concept, the present invention also provides a depth control seat for a hydraulic reversible plow, comprising a depth control tube and a depth control shaft. The depth control tube is provided with a mounting hole, and at least two bearing mounting positions are provided along the mounting hole. Each bearing mounting position is provided with a mounting bearing. The depth control tube is provided with an oil filling hole, which communicates with each bearing mounting position and is provided with an oil filling cup. The depth control shaft passes through the mounting hole and is connected to the mounting bearing. The depth control shaft and the depth control tube are connected by a spherical bearing. The depth control tube is provided with an oil filling hole for replenishing lubricating oil to the spherical bearing, thereby solving the friction loss problem of the depth control shaft in the hydraulic reversible plow depth control assembly.

[0016] As a preferred solution, the mounting bearing is a spherical bearing, and bearing mounting grooves are provided at both ends of the depth limiting tube. The bearing mounting groove is a circular groove with an inner diameter larger than the diameter of the mounting hole. The bearing mounting groove is a bearing mounting position and the bearing mounting groove is provided with a spherical bearing. An annular sealing gasket is provided in the bearing mounting groove. The sealing gasket is sleeved on the depth limiting shaft and encapsulates the mounting bearing in the bearing mounting groove; the outer end face of the sealing gasket is also provided with an annular groove, and a sealing ring is sleeved on the outside of the sealing gasket at the annular groove, and the sealing ring and the sealing gasket are in conflict with the inner end face of the bearing mounting groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the depth limiting assembly of the hydraulic tilting plow, the depth limiting tube and the depth limiting shaft are connected by at least two mounting bearings, which effectively solves the friction loss problem of the depth limiting shaft. The mounting bearings can be radial spherical bearings or other forms of spherical bearings, or can be bearings in the form of tapered roller bearings, deep groove ball bearings, needle roller and thrust ball bearings, composite bearings, etc.; 2. The depth limiting tube is provided with an oil filling hole and an oil filling cup, and lubricating oil can be added to each mounting bearing through the oil filling hole to realize the maintenance of each mounting bearing and extend the service life of the depth limiting tilting plow; 3. In the depth limiting assembly of the hydraulic tilting plow, what is lost is the mounting bearing itself, and the depth limiting assembly can also be repaired by replacing the mounting bearing, avoiding the need to replace the depth limiting shaft and related components after the depth limiting assembly fails, reducing maintenance costs, transportation costs and labor costs, and shortening the maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of Example 2;

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 is a three-dimensional schematic diagram of Example 2;

[0022] Figure 4 Schematic diagram of the structure of the double-card depth limit seat assembly in Example 3;

[0023] Figure 5 Schematic diagram of the structure of the depth limiting tube in Example 3;

[0024] Figure 6 Schematic diagram of the structure of the depth-limiting shaft in Example 3;

[0025] Figure 7 This is a schematic structural diagram of Example 3;

[0026] In the figure: 1. depth limit splint, 2. depth limit tube, 3. depth limit shaft, 4. joint bearing, 5. depth limit leg connector, 6. oil filling hole, 7. sealing gasket, 8. depth limit leg. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figures 1-4A depth limiting seat of a hydraulic flip plow includes a depth limiting tube 2 and a depth limiting shaft 3. A mounting hole is provided in the depth limiting tube 2. The mounting hole is a circular hole that passes through the two opposite ends of the depth limiting tube 2. At least two bearing mounting positions are provided along the mounting hole in the depth limiting tube 2. The bearing mounting positions are provided with mounting bearings 4. An oil filling hole 6 is provided on the depth limiting tube 2. The oil filling hole 6 is communicated with the mounting hole and communicates with each bearing mounting position through the mounting hole. The oil filling hole 6 is provided with an oil filling cup. The depth limiting shaft 3 passes through the mounting hole and is connected to the mounting bearing 4. A shaft cover is provided on the depth limiting shaft 3, and the other end is suitable for connecting with the depth limiting leg 8.

[0030] The depth limit seat of this embodiment can be used in most hydraulic reversible plows to avoid friction between the depth limit tube 2 and the depth limit shaft 3. Lubricating oil is added to each mounting bearing 4 through the oil filling hole 6, so that maintenance of each mounting bearing 4 can be achieved.

[0031] The mounting bearing 4 can be a tapered roller bearing, a deep groove ball bearing, a needle roller and thrust ball bearing, a composite bearing, etc. The mounting bearing 4 is preferably a spherical plain bearing, and most preferably a radial spherical plain bearing.

[0032] As a further embodiment, bearing mounting grooves are provided at both ends of the depth control tube 2. The bearing mounting grooves are circular grooves with an inner diameter larger than the diameter of the mounting hole, and serve as bearing mounting locations. A mounting bearing is disposed within the bearing mounting grooves, and an annular sealing gasket 7 is also disposed within the bearing mounting grooves. Sealing gasket 7 is sleeved onto the depth control shaft 3, with the inner ring of sealing gasket 7 in close contact with the outer end surface of the depth control shaft 3, and the outer ring of sealing gasket 7 in close contact with the inner end surface of the bearing mounting grooves. Sealing gasket 7 seals the mounting bearing within the bearing mounting grooves, isolating the mounting bearing from the outside world and preventing the outflow of lubricating oil from the mounting bearing.

[0033] As a further embodiment, the outer end surface of the sealing gasket 7 is further provided with an annular groove, and a sealing ring is sleeved on the outside of the sealing gasket 7 in the annular groove. The sealing ring and the sealing gasket 7 are in contact with the inner end surface of the bearing mounting groove.

[0034] Example 2

[0035] See also Figure 1-Figure 3, a single-sided wheel depth limiting assembly of a hydraulic flip plow, as an application example of the depth limiting seat structure of Example 1, includes a depth limiting splint 1, a depth limiting tube 2 and a depth limiting shaft 3. A flip plow connecting position is provided on the depth limiting splint 1, and the flip plow connecting position is connected to the beam of the flip plow. A connecting plate is provided on the outer wall of the depth limiting tube 2, and the connecting plate extends into the depth limiting splint 1 and is connected to the depth limiting splint 1 by bolts. The interior of the depth limiting tube 2 is provided with a mounting hole, which is a circular hole suitable for the installation and connection of the depth limiting shaft 3. The mounting hole passes through the two opposite end faces of the depth limiting tube 2. At least two bearing mounting positions are provided inside the depth limiting tube 2 along the length direction of the mounting hole. The bearing mounting positions are communicated with the mounting holes. The bearing mounting positions are provided with mounting bearings 4. The mounting bearings 4 are preferably radial spherical bearings, but can also be other forms of spherical bearings, or bearings in the form of tapered roller bearings, deep groove ball bearings, needle roller and thrust ball bearings, composite bearings, etc. The depth limiting shaft 3 is arranged through the mounting hole and connected to the mounting bearing 4. One end of the depth limiting shaft 3 extends out of the mounting hole and is provided with a shaft cover to prevent the depth limiting shaft 3 from detaching from the depth limiting tube 2. The other end of the depth limiting shaft 3 also extends out of the mounting hole. A depth limiting leg connecting piece 5 is provided on the outside of the mounting hole on the depth limiting shaft 3. The depth limiting leg connecting piece 5 is a component for installing and connecting the depth limiting legs 8, and the depth limiting leg connecting piece 5 connects the depth limiting legs 8.

[0036] An oil filling hole 6 is provided on the depth limiting tube 2. The oil filling hole 6 is communicated with the mounting hole and is communicated with the bearing mounting position through the mounting hole. Oil can be injected into the mounting bearing 4 at each bearing mounting position through the oil filling hole 6. An oil filling cup is provided at the oil filling hole 6 for easy oil injection.

[0037] The depth limit assembly of this embodiment avoids friction between the depth limit shaft 3 and the depth limit tube 2 by adding a mounting bearing 4 between the depth limit shaft 3 and the depth limit tube 2. In addition, an oiling cup is provided on the depth limit tube 2, which is conducive to adding lubricating oil to each mounting bearing 4 for maintenance, thereby greatly improving the service life of the depth limit assembly.

[0038] See also Figure 1 and Figure 2 As a preferred embodiment, the depth control tube 2 is provided with two bearing mounting locations, one at each end of the depth control tube 2. An oil injection hole 6 is provided between the two bearing mounting locations on the depth control tube 2, and radial spherical plain bearings are installed within the bearing mounting locations. The depth control shaft 3 passes through the mounting holes of the depth control tube 2 and is connected to the two radial spherical plain bearings. This effectively prevents friction between the depth control shaft 3 and the depth control tube 2 and can also withstand the impact of the hydraulic reversing plow.

[0039] Specifically, the bearing mounting position is a bearing mounting groove. Bearing mounting grooves are provided at two opposite ends of the depth limiting tube 2. The bearing mounting grooves are circular grooves and communicate with the mounting hole. The diameter of the bearing mounting grooves is larger than the aperture of the mounting hole.

[0040] A radial spherical plain bearing is mounted within the bearing mounting groove. A sealing mechanism is also provided within the bearing mounting groove. The sealing mechanism cooperates with the inner end surface of the bearing mounting groove and the outer end surface of the depth-limiting shaft 3 to seal the radial spherical plain bearing within the bearing mounting groove. The sealing mechanism serves to isolate the radial spherical plain bearing from the outside world, ensuring proper installation and use. It also serves to prevent lubricating oil from leaking out and to allow lubricating oil to be added to each radial spherical plain bearing through the oil filling hole 6 and the mounting hole.

[0041] In some embodiments, the packaging mechanism is a sealing gasket 7, which is an annular gasket. The sealing gasket 7 is sleeved on the depth limiting shaft 3, the inner ring of the sealing gasket 7 is in contact with the depth limiting shaft 3, and the outer ring of the sealing gasket 7 is in contact with the inner end face of the bearing mounting groove. The installed bearing is located between the connecting hole and the sealing gasket 7 in the bearing mounting groove, and the sealing gasket 7 seals the installed bearing in the bearing mounting groove.

[0042] In a further embodiment, in order to further ensure the sealing effect of the packaging mechanism, an annular groove is provided on the outer end surface of the sealing gasket 7. The annular groove is a groove opened on the outer end surface of the sealing gasket 7 and extending along the circumference of the sealing gasket 7 to form a closed loop. A sealing ring is provided on the outer sleeve of the sealing gasket 7, and the sealing ring is sleeved in the annular groove. The outer end surfaces of the sealing ring and the sealing gasket 7 both conflict with the inner end surface of the bearing mounting groove.

[0043] The depth limiting leg connector 5 is a prior art structure suitable for installing and connecting the depth limiting leg 8, which can be Figure 1 The welded structure of the connecting bolt group including the connecting splint shown in the figure may also be other components that can achieve the same connection function, which will not be described in detail in this utility model. Figure 1 As shown, the depth limiting leg 8 is connected to the depth limiting shaft 3 through the depth limiting leg connecting member 5, and the tire assembly is installed on the depth limiting leg 8.

[0044] The depth limiting splint 1 is also the depth limiting splint 1 structure of the hydraulic reversible plow in the prior art, and the present invention does not describe its structure in detail. Figure 1 As shown, a depth-limiting stopper is provided on the depth-limiting splint 1. The depth-limiting stopper can be a stopper block, a stopper plate or other supporting structure. A depth-limiting elastic member is provided between the depth-limiting stopper and the depth-limiting leg 8. The depth-limiting elastic member can be a depth-limiting spring, a depth-limiting elastic top support member or a depth-limiting elastic top support member. Figure 1 The depth-limiting elastic reset plate shown in .

[0045] The depth limiting elastic member is on the depth limiting splint 1 and elastically supports the depth limiting leg 8 .

[0046] Furthermore, a connecting chain is provided on the depth limiting splint 1 , and the connecting chain is connected to the depth limiting leg 8 . The connecting chain can limit the adjustment range of the depth limiting leg 8 relative to the depth limiting splint 1 .

[0047] Example 3

[0048] In addition to the single-side wheel depth limiting assembly of a hydraulic reversible plow described in Example 2, the depth limiting seat structure of Example 1 can also be applied to the double-card depth limiting assembly of a hydraulic reversible plow, see Figure 4-Figure 7 A double-card depth limiting assembly for a hydraulic reversible plow comprises a double-card depth limiting seat assembly and a double-card depth limiting wheel assembly.

[0049] The double-card depth limit seat assembly includes a depth limit splint 1, a depth limit tube 2 and a depth limit shaft 3. A connecting part is provided on the outside of the depth limit tube 2, and the depth limit splint 1 is connected to the connecting part by bolts. A mounting hole is provided on the inside of the depth limit tube 2, and at least two bearing mounting positions are provided along the mounting hole inside the depth limit tube 2. The bearing mounting position is communicated with the mounting hole and the bearing mounting position is provided with a mounting bearing 4. The depth limit shaft 3 passes through the mounting hole and is connected to the mounting bearing 4. One end of the depth limit shaft 3 extends out of the mounting hole and is provided with a shaft cover. The other end of the depth limit shaft also extends out of the mounting hole and is provided with a connecting hole suitable for connecting to the double-card depth limit wheel assembly. The double-card depth limit wheel assembly is connected to the depth limit shaft by a bolt group and / or a fixing pin passing through the connecting hole and assembled into a complete double-card depth limit assembly structure.

[0050] As in Examples 1 and 2, the mounting bearing can be a tapered roller bearing, a deep groove ball bearing, a needle roller and thrust ball bearing, a composite bearing, etc. The mounting bearing 4 is preferably a spherical plain bearing, and preferably a radial spherical plain bearing.

[0051] An oil filling hole 6 is also provided on the depth limiting tube 2. The oil filling hole 6 is communicated with the mounting hole and is communicated with each bearing mounting position through the mounting hole. Oil can be injected into the mounting bearing 4 at each bearing mounting position through the oil filling hole 6. An oil filling cup is provided at the oil filling hole 6 for easy oil injection.

[0052] See also Figure 5 There are preferably two bearing mounting positions and they are distributed at the two ends of the depth limiting tube 2. The bearing mounting position is in the form of a bearing mounting groove with an inner diameter larger than the inner diameter of the mounting hole, and a mounting bearing is installed in the bearing mounting groove; the oil filling hole is located between the two bearing mounting grooves to facilitate the addition of lubricating oil to the two bearing mounting grooves.

[0053] As a preferred embodiment, a packaging mechanism as described in Example 2 is provided in each bearing installation groove, and the packaging mechanism cooperates with the depth limiting tube 2 and the depth limiting shaft 3 to package the bearing installed in the bearing installation groove.

[0054] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0055] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A single-side wheel depth limiting assembly for a hydraulic reversible plow, characterized by: The invention comprises a depth limiting splint (1), a depth limiting tube (2) and a depth limiting shaft (3), wherein the depth limiting splint (1) is provided with the depth limiting tube (2), the interior of the depth limiting tube (2) is provided with a mounting hole, the interior of the depth limiting tube (2) is provided with at least two bearing mounting positions along the mounting hole, the bearing mounting positions are communicated with the mounting hole and the bearing mounting positions are provided with mounting bearings (4), the depth limiting shaft (3) passes through the mounting hole and is connected to the mounting bearings (4), a depth limiting leg (8) connecting piece (5) is provided on the depth limiting shaft (3) outside the mounting hole, and a flip plow connecting position is also provided on the depth limiting splint (1).

2. The single-side wheel depth limiting assembly of a hydraulic reversible plow according to claim 1, characterized in that: An oil filling hole (6) is provided on the depth limiting tube (2), the oil filling hole (6) is communicated with each bearing mounting position, and an oil filling cup is provided in the oil filling hole (6).

3. The single-side wheel depth limiting assembly of a hydraulic reversible plow according to claim 2, characterized in that: The mounting bearing (4) is a spherical bearing. Bearing mounting positions are provided at two opposite ends of the depth limiting tube (2). The bearing mounting positions are provided with spherical bearings. The oil injection hole (6) is provided between the two bearing mounting positions.

4. The single-side wheel depth limiting assembly of a hydraulic reversible plow according to claim 3, characterized in that: The installed bearing (4) is a radial spherical plain bearing.

5. The single-side wheel depth limiting assembly of a hydraulic reversible plow according to claim 4, characterized in that: Bearing mounting grooves are provided at two opposite ends of the depth limiting tube (2). The bearing mounting grooves are circular grooves with an inner diameter larger than the diameter of the mounting hole. The bearing mounting grooves are bearing mounting positions. A packaging mechanism is provided in the bearing mounting grooves. The packaging mechanism cooperates with the inner end surface of the bearing mounting groove and the outer end surface of the depth limiting shaft (3) and packages the mounted bearing into the bearing mounting grooves.

6. The single-side wheel depth limiting assembly of a hydraulic reversible plow according to claim 5, characterized in that: The packaging mechanism comprises a sealing gasket (7), which is annular and sleeved on the depth-limiting shaft (3), and an outer end surface of the sealing gasket (7) contacts an inner end surface of the bearing mounting groove.

7. The single-side wheel depth limiting assembly of a hydraulic reversible plow according to claim 6, characterized in that: The outer end surface of the sealing gasket (7) is provided with an annular groove, and the outer sleeve of the sealing gasket (7) is provided with a sealing ring, which is in the annular groove and contacts the inner end surface of the bearing mounting groove.

8. The single-side wheel depth limiting assembly of a hydraulic reversible plow according to claim 7, characterized in that: The depth-limiting leg (8) connecting member (5) is provided with a depth-limiting leg (8), a depth-limiting stopper is provided on the depth-limiting splint (1), and a depth-limiting elastic member is provided between the depth-limiting leg (8) and the depth-limiting stopper; a connecting chain is provided on the depth-limiting splint (1), and the connecting chain is connected to the depth-limiting leg (8).

9. A depth limiter for a hydraulic reversible plow, characterized by: The invention comprises a depth limiting tube (2) and a depth limiting shaft (3), wherein a mounting hole is provided in the depth limiting tube (2), at least two bearing mounting positions are provided along the mounting hole in the depth limiting tube (2), and the bearing mounting positions are provided with mounting bearings (4), an oil filling hole (6) is provided on the depth limiting tube (2), the oil filling hole (6) is communicated with each bearing mounting position and an oil filling cup is provided in the oil filling hole (6), and the depth limiting shaft (3) passes through the mounting hole and is connected to the mounting bearing (4).

10. The depth-limiting seat of a hydraulic reversible plow according to claim 9, characterized in that: The mounting bearing (4) is a joint bearing. Bearing mounting grooves are provided at both ends of the depth limiting tube (2). The bearing mounting grooves are circular grooves whose inner diameter is larger than the diameter of the mounting hole. The bearing mounting grooves are bearing mounting positions and the bearing mounting grooves are provided with joint bearings. An annular sealing gasket (7) is provided in the bearing mounting groove. The sealing gasket (7) is sleeved on the depth limiting shaft (3) and seals the mounting bearing (4) in the bearing mounting groove. The outer end surface of the sealing gasket (7) is further provided with an annular groove. The outer portion of the sealing gasket (7) is sleeved with a sealing ring at the annular groove. The sealing ring and the sealing gasket (7) are in contact with the inner end surface of the bearing mounting groove.

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