Automatic cleaning robot in hydraulic cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinder cleaning, and particularly discloses an automatic cleaning robot in a hydraulic cylinder. Round holes are formed in the middles of the front wall and the rear wall of a supporting shell respectively, and rectangular holes are formed in the middles of the top face and the bottom face respectively; the walking assembly comprises supporting rings rotationally arranged in the round holes in a sleeved mode, longitudinal beams fixed between the supporting rings, rolling wheels rotationally installed in the longitudinal beams and a walking driving mechanism. The rolling wheels are all tightly attached to the wall of the piston rod. The cleaning assembly comprises a two-way pushing part fixed to the rectangular hole, a cylinder wall cleaning part and a rod wall cleaning part, the cylinder wall cleaning part and the rod wall cleaning part are arranged on the upper side and the lower side of the two-way pushing part, the outer portion of the cylinder wall cleaning part is of an arc-surface protruding structure with the diameter equal to the inner diameter of the hydraulic cylinder, and the middle of the interior of the rod wall cleaning part is of an arc-surface groove structure with the diameter equal to the outer diameter of a piston rod; a rotary driving assembly for driving the supporting shell to rotate relative to the supporting ring is arranged in an inner cavity of the supporting shell. Therefore, the inner wall of the hydraulic oil cylinder and the wall of the piston rod can be cleaned efficiently and flexibly.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder cleaning, in particular to an automatic cleaning robot inside a hydraulic cylinder. Background Technique

[0002] A hydraulic cylinder is an actuator in a hydraulic transmission system. Due to reasons such as oil pollution, aging, harsh working environment, insufficient or inappropriate lubrication, dirt will be generated on the cylinder wall and piston rod wall of the cylinder. This will lead to an increase in the friction force between the piston rod and the cylinder wall, an increase in the energy loss during the operation of the hydraulic cylinder, an exacerbation of the wear of the piston rod, and further affect the working effect and service life of the sealing parts. It will also hinder the flow of hydraulic oil and the movement of the piston, which will cause the response speed of the hydraulic system to slow down, affecting the working efficiency and accuracy of the equipment.

[0003] In the prior art, when cleaning the inner wall of the hydraulic cylinder and the piston rod wall, the method of disassembling and cleaning the hydraulic cylinder is generally adopted, that is, the piston rod is removed from the hydraulic cylinder, and then the two are cleaned separately. This method is not only complicated and difficult to operate, but also has low efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatic cleaning robot inside a hydraulic cylinder, which is used to solve the problem that it is not convenient to clean the inner wall of the hydraulic cylinder and the piston rod wall efficiently and flexibly in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An automatic cleaning robot inside a hydraulic cylinder, circular holes are respectively arranged in the middle of the front and rear walls of the support shell, and rectangular holes are respectively arranged in the middle of the top and bottom surfaces of the support shell; the walking assembly includes a support ring rotatably sleeved in the circular holes, a plurality of longitudinal beams fixed to the support ring at the front and rear ends respectively, rollers rotatably installed in the inner grooves of the longitudinal beams, and a walking driving mechanism for driving the rollers to rotate. The support ring is sleeved outside the piston rod and the rollers are all closely attached to the piston rod wall; the cleaning assembly includes a two-way pushing member fixed at the rectangular hole, a cylinder wall cleaning member fixed on the outer pushing rod of the two-way pushing member, and a rod wall cleaning member fixed on the inner pushing rod of the two-way pushing member. The outer part of the cylinder wall cleaning member is an arc convex structure with a diameter equal to the inner diameter of the hydraulic cylinder, and the middle part inside the rod wall cleaning member is an arc groove structure with a diameter equal to the outer diameter of the piston rod; a rotation driving assembly for driving the support shell to rotate relative to the support ring is arranged in the inner cavity of the support shell.

[0006] Preferably, the cylinder wall cleaning member includes a support block one with the bottom surface fixed to the top pushing rod of the two-way pushing member and the top surface being an arc convex surface structure, and a brush layer one is attached to the top surface of the support block one.

[0007] Preferably, a first storage cavity is provided in the middle of the first support block. A first filter screen extending in the horizontal direction is provided at a position close to the bottom in the inner cavity of the first storage cavity. An absorber is provided at the bottom of the inner cavity of the first storage cavity. A number of first through holes are provided at a position corresponding to the first storage cavity in the middle of the first brush layer. A first partition is provided at the outer edge of the first brush layer.

[0008] Preferably, the rod wall cleaning member includes a second support block with the top surface fixed to the bottom push rod of the two-way pushing member and the middle of the bottom surface being an arc concave structure. A second brush layer is attached to the position of the bottom surface of the second support block where the arc concave structure is located.

[0009] Preferably, a second storage cavity is provided in the middle of the second support block. A second filter screen extending in the horizontal direction is provided at a position close to the top in the inner cavity of the second storage cavity. An absorber is provided at the top of the inner cavity of the second storage cavity. A number of second through holes are provided at a position corresponding to the second storage cavity in the middle of the second brush layer. A second partition is provided at the outer edge of the second brush layer.

[0010] Preferably, a gear ring is fixedly sleeved on the outside of the rear end of the support ring at the front end of the walking assembly. A rotary motor is fixed at a position close to a corner in the inner cavity of the support shell. A first gear meshing with the gear ring is fixedly sleeved on the power output shaft of the rotary motor.

[0011] Preferably, a walking motor is fixed at a position on the outer wall of the longitudinal beam close to the roller. A third gear is fixedly sleeved on the central shaft of the roller. A second gear meshing with the third gear is fixedly sleeved on the power output shaft of the walking motor.

[0012] Preferably, side plates extending vertically are respectively fixed on both sides of the rectangular hole. Both sides of the two-way pushing member are respectively fixed to the inner side walls of the side plates.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] An automatic cleaning robot for a hydraulic cylinder according to the present utility model realizes automatic cleaning operations on the inner wall of the hydraulic cylinder and the rod wall. The operation process is simple and flexible, and a large amount of disassembly and assembly work on the hydraulic cylinder is not required during the cleaning process, improving the cleaning efficiency and saving labor. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the whole of the present utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the support shell of the present utility model;

[0017] Figure 3 It is a rear view structural schematic diagram of the walking assembly of the present utility model;

[0018] Figure 4 This is the front view structural schematic diagram of the cleaning component of the present utility model;

[0019] Figure 5 This is the top view structural schematic diagram of the cleaning component of the present utility model;

[0020] Figure 6 This is the bottom view structural schematic diagram of the cleaning component of the present utility model;

[0021] Figure 7 This is the sectional view structural schematic diagram of the cleaning component of the present utility model.

[0022] In the figure: 1 - support housing; 1.1 - round hole; 1.2 - rectangular hole; 1.3 - side plate; 1.4 - rotation drive assembly; 1.4.1 - rotation motor; 1.4.2 - gear one;

[0023] 2 - traveling assembly; 2.1 - support ring; 2.2 - longitudinal beam; 2.3 - roller; 2.4 - traveling motor; 2.5 - gear two; 2.6 - gear three; 2.7 - gear ring;

[0024] 3 - cleaning component; 3.1 - bidirectional pusher; 3.2 - cylinder wall cleaning member; 3.2.1 - support block one; 3.2.1.1 - storage cavity one; 3.2.2 - brush layer one; 3.2.2.1 - through hole one; 3.2.2.2 - partition one; 3.2.3 - filter screen one; 3.2.4 - absorber one; 3.3 - rod wall cleaning member; 3.3.1 - support block two; 3.3.1.1 - storage cavity two; 3.3.2 - brush layer two; 3.3.2.1 - through hole two; 3.3.2.2 - partition two; 3.3.3 - filter screen two; 3.3.4 - absorber two. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1-7 , the present utility model provides a technical solution: an automatic cleaning robot inside a hydraulic cylinder. Round holes 1.1 are respectively provided in the middle parts of the front and rear walls of the support housing 1, and rectangular holes 1.2 are respectively provided in the middle parts of the top and bottom surfaces of the support housing 1; Side plates 1.3 extending vertically are respectively fixed on both sides of the rectangular hole 1.2, and a rotation motor 1.4.1 is fixed at a position near a corner in the inner cavity of the support housing 1, and a gear one 1.4.2 is fixedly sleeved on the power output shaft of the rotation motor 1.4.1.

[0027] The walking assembly 2 includes a support ring 2.1 rotatably sleeved in the round hole 1.1, a plurality of longitudinal beams 2.2 fixed to the support ring 2.1 at the front and rear ends respectively, rollers 2.3 rotatably installed in the inner grooves of the longitudinal beams 2.2, and a walking drive mechanism for driving the rollers 2.3 to rotate. The support ring 2.1 is sleeved outside the piston rod and the rollers 2.3 are all in close contact with the piston rod wall. Among them, a gear ring 2.7 is fixedly sleeved outside the rear end of the support ring 2.1 at the front end of the walking assembly 2. The gear ring 2.7 meshes with the first gear 1.4.2. That is, the rotary motor 1.4.1 drives the first gear 1.4.2 to rotate. Due to the meshing relationship between the first gear 1.4.2 and the gear ring 2.7, the entire support housing 1 can rotate relative to the walking assembly 2. A walking motor 2.4 is fixed at a position on the outer wall of the longitudinal beam 2.2 close to the roller 2.3. A third gear 2.6 is fixedly sleeved on the central shaft of the roller 2.3. A second gear 2.5 meshing with the third gear 2.6 is fixedly sleeved on the power output shaft of the walking motor 2.4. That is, the walking motor 2.4 drives the roller 2.3 to reciprocate along the piston rod wall through the second gear 2.5 and the third gear 2.6.

[0028] The cleaning component 3 includes a two-way pusher 3.1 fixed within the rectangular hole 1.2 and fixed to the inner side walls of the side plates 1.3 on both sides, a cylinder wall cleaning member 3.2 fixed to the outer push rod of the two-way pusher 3.1, and a rod wall cleaning member 3.3 fixed to the inner push rod of the two-way pusher 3.1. The outer part of the cylinder wall cleaning member 3.2 is an arc convex structure with a diameter equal to the inner diameter of the hydraulic cylinder, and the middle part of the rod wall cleaning member 3.3 is an arc concave structure with a diameter equal to the outer diameter of the piston rod. Among them, the cylinder wall cleaning member 3.2 includes a first support block 3.2.1 with a bottom surface fixed to the top push rod of the two-way pusher 3.1 and a top surface being an arc convex structure. A first brush layer 3.2.2 is attached to the top surface of the first support block 3.2.1. A storage cavity 3.2.1.1 is provided in the middle of the first support block 3.2.1. A first filter screen 3.2.3 extending in the horizontal direction is provided at a position close to the bottom of the inner cavity of the storage cavity 3.2.1.1. An absorber 3.2.4 is provided at the bottom of the inner cavity of the storage cavity 3.2.1.1. A number of through holes 3.2.2.1 are provided at a position corresponding to the storage cavity 3.2.1.1 in the middle of the first brush layer 3.2.2. A first partition 3.2.2.2 is provided at the outer edge of the first brush layer 3.2.2. The rod wall cleaning member 3.3 includes a second support block 3.3.1 with a top surface fixed to the bottom push rod of the two-way pusher 3.1 and a middle part of the bottom surface being an arc concave structure. A second brush layer 3.3.2 is attached to the position of the bottom surface of the second support block 3.3.1 where the arc concave structure is located. A storage cavity 3.3.1.1 is provided in the middle of the second support block 3.3.1. A second filter screen 3.3.3 extending in the horizontal direction is provided at a position close to the top of the inner cavity of the storage cavity 3.3.1.1. An absorber 3.3.4 is provided at the top of the inner cavity of the storage cavity 3.3.1.1. A number of through holes 3.3.2.1 are provided at a position corresponding to the storage cavity 3.3.1.1 in the middle of the second brush layer 3.3.2. A second partition 3.3.2.2 is provided at the outer edge of the second brush layer 3.3.2.

[0029] In summary, when it is necessary to clean the inner wall of the hydraulic cylinder and the piston rod wall, first, the two-way pusher 3.1 pushes the first support block 3.2.1 and the second support block 3.3.1, so that the first brush layer 3.2.2 abuts against the inner wall of the hydraulic cylinder, and at the same time the second brush layer 3.3.2 abuts against the piston rod wall; then the traveling motor 2.4 drives the roller 2.3 to roll through the second gear 2.5 and the third gear 2.6, so that the traveling assembly 2 together with the support housing 1 and the cleaning assembly 3 reciprocates along the axial direction of the hydraulic cylinder. The first brush layer 3.2.2 and the second brush layer 3.3.2 respectively clean the inner wall of the hydraulic cylinder and the piston rod wall, and the dirt removed enters the first storage cavity 3.2.1.1 through the first through hole 3.2.2.1 or enters the second storage cavity 3.3.1.1 through the second through hole 3.2.2.1; the part of the dirt in the first storage cavity 3.2.1.1 after being filtered by the first filter screen 3.2.3 is absorbed by the first absorber 3.2.4; the part of the dirt in the second storage cavity 3.3.1.1 after being filtered by the second filter screen 3.3.3 is absorbed by the second absorber 3.3.4.

[0030] Then, the two-way pusher 3.1 retracts the first support block 3.2.1 and the support block 3.3.1, and then the rotating motor 1.4.1 drives the first gear 1.4.2 to rotate, so that the support housing 1 drives the cleaning assembly 3 to rotate a certain angle relative to the traveling assembly 2, and then performs the reciprocating cleaning operation on the inner wall of the hydraulic cylinder and the piston rod wall according to the above process. By analogy, after multiple rotations and reciprocating movements of the cleaning assembly 3, the cleaning operation of the inner wall of the hydraulic cylinder and the piston rod wall is completed.

[0031] Finally, the dirt in the first absorber 3.2.4 and the second absorber 3.3.4 is removed regularly.

[0032] There is a rubber layer outside the first partition 3.2.2.2 and the second partition 3.3.2.2 to seal the cleaning range of the brush layer, so that the removed dirt can enter the corresponding storage cavity from the corresponding through hole in time, and avoid the dirt from mixing into the oil in the hydraulic cylinder.

[0033] Among them, when the support housing 1 and the cleaning assembly 3 rotate relative to the traveling assembly 2, the second support block 3.3.1 may be directly opposite to the longitudinal beam 2.2. At this time, the longitudinal beam 2.2 will hinder the action of the second support block 3.3.1 from abutting against the piston rod wall inward. Therefore, in this cleaning method, multiple strip-shaped blind areas will be formed on the piston rod wall and the inner wall of the hydraulic cylinder, and these blind areas cannot be automatically cleaned; so at this time, it is necessary to manually rotate the whole robot by a certain angle so that the cleaning assembly 3 can cover the strip-shaped blind areas in the previous process when automatic cleaning is performed again.

[0034] In addition, it is necessary to adjust the inner cavity size of the support housing 1 so that the rotary motor 1.4.1 and the first gear 1.4.2 located at the corner positions of the inner cavity of the support housing 1 do not hinder the radial telescopic movement of the second support block 3.3.1, and at the same time do not hinder the relative circumferential movement of the traveling motor 2.4 and the second gear 2.5.

[0035] When using a cleaning robot to clean the inner wall of the hydraulic cylinder and the piston rod wall, it only needs to remove the end cover and perform the operations of disassembling, assembling, and debugging the cleaning robot. There is no longer a need to completely remove the piston rod from the hydraulic cylinder and then clean them separately, which simplifies the operation steps, improves the cleaning efficiency, and saves manpower.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning robot in a hydraulic cylinder, characterized in that: include: A support shell (1), wherein circular holes (1.1) are respectively provided in the middle of the front and rear walls of the support shell (1), and rectangular holes (1.2) are respectively provided in the middle of the top and bottom surfaces of the support shell (1); A walking assembly (2), the walking assembly (2) comprising a support ring (2.1) rotatably mounted in the circular hole (1.1), a plurality of longitudinal beams (2.2) whose front and rear ends are respectively fixed to the support ring (2.1), rollers (2.3) rotatably mounted in grooves inside the longitudinal beams (2.2), and a walking drive mechanism for driving the rollers (2.3) to rotate, the support ring (2.1) being mounted outside the piston rod and the rollers (2.3) being closely attached to the wall of the piston rod; A cleaning component (3), the cleaning component (3) comprising a bidirectional push member (3.1) fixed at the rectangular hole (1.2), a cylinder wall cleaning member (3.2) fixed on an outer push rod of the bidirectional push member (3.1), and a rod wall cleaning member (3.3) fixed on an inner push rod of the bidirectional push member (3.1), the cylinder wall cleaning member (3.2) having an outer cambered convex structure with a diameter equal to the inner diameter of the hydraulic cylinder, and the rod wall cleaning member (3.3) having an inner cambered concave structure with a diameter equal to the outer diameter of the piston rod; The inner cavity of the support shell (1) is provided with a rotation drive component (1.4) for driving the support shell (1) to rotate relative to the support ring (2.1).

2. The automatic cleaning robot in a hydraulic cylinder according to claim 1, characterized in that: The cylinder wall cleaning member (3.2) comprises a support block (3.2.1) whose bottom surface is fixed to the top push rod of the bidirectional push member (3.1) and whose top surface is an arc-shaped convex structure; a brush layer (3.2.2) is attached to the top surface of the support block (3.2.1).

3. The automatic cleaning robot in a hydraulic cylinder according to claim 2, characterized in that: A storage cavity (3.2.1.1) is provided in the middle of the support block (3.2.1), a filter screen (3.2.3) extending in the horizontal direction is provided near the bottom of the inner cavity of the storage cavity (3.2.1.1), an absorber (3.2.4) is provided at the bottom of the inner cavity of the storage cavity (3.2.1.1), a plurality of through holes (3.2.2.1) are provided in the middle of the brush layer (3.2.2) at positions corresponding to the storage cavity (3.2.1.1), and a partition (3.2.2.2) is provided at the outer edge of the brush layer (3.2.2).

4. The automatic cleaning robot in a hydraulic cylinder according to claim 1, characterized in that: The rod wall cleaning member (3.3) comprises a second support block (3.3.1) whose top surface is fixed to the bottom push rod of the bidirectional push member (3.1) and whose middle part of the bottom surface is an arc-shaped concave structure; a second brush layer (3.3.2) is attached to the bottom surface of the second support block (3.3.1) at the position of the arc-shaped concave structure.

5. The automatic cleaning robot in a hydraulic cylinder according to claim 4, characterized in that: A storage chamber 2 (3.3.1.1) is provided in the middle of the support block 2 (3.3.1), a filter screen 2 (3.3.3) extending in the horizontal direction is provided near the top of the inner cavity of the storage chamber 2 (3.3.1.1), an absorber 2 (3.3.4) is provided at the top of the inner cavity of the storage chamber 2 (3.3.1.1), a plurality of through holes 2 (3.3.2.1) are provided in the middle of the brush layer 2 (3.3.2) at a position corresponding to the storage chamber 2 (3.3.1.1), and a partition 2 (3.3.2.2) is provided at the outer edge of the brush layer 2 (3.3.2).

6. The automatic cleaning robot in a hydraulic cylinder according to claim 1, characterized in that: The support ring (2.1) at the front end of the walking component (2) is externally and fixedly sleeved with a gear ring (2.7) on the rear end thereof; a rotating motor (1.4.1) is fixedly sleeved near a corner of the inner cavity of the support housing (1); and a gear 1 (1.4.2) meshing with the gear ring (2.7) is fixedly sleeved on the power output shaft of the rotating motor (1.4.1).

7. The automatic cleaning robot in a hydraulic cylinder according to claim 1, characterized in that: A travel motor (2.4) is fixed on the outer wall of the longitudinal beam (2.2) near the roller (2.3), a gear three (2.6) is fixedly mounted on the central axis of the roller (2.3), and a gear two (2.5) meshing with the gear three (2.6) is fixedly mounted on the power output shaft of the travel motor (2.4).

8. The automatic cleaning robot in a hydraulic cylinder according to claim 1, characterized in that: Side plates (1.3) extending in the vertical direction are fixed to both sides of the rectangular hole (1.2), and both sides of the bidirectional push piece (3.1) are fixed to the inner side walls of the side plates (1.3).

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