Protective structure for large hydraulic oil cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a protective structure for a large hydraulic oil cylinder, a cover plate is hinged to the surface of a box body, and a groove is formed in the right side of the box body. The two double-end studs rotate to drive the four clamping plates to slide along the sliding grooves machined in the second shell, so that when a thick or thin large hydraulic oil cylinder needs to be protected, an operator does not need to replace the large hydraulic oil cylinder to other machines matched with the large hydraulic oil cylinder for protection, the working limitation is reduced, and the working efficiency is improved. The handle moves leftwards to drive the transverse rod to slide along the sliding groove machined in the sleeve, and meanwhile the spring is compressed, so that timely cleaning can be achieved, the hydraulic oil cylinder is not prone to damage, the probability that an operator overhauls the large hydraulic oil cylinder is reduced, and the service life of the large hydraulic oil cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a protective structure for a large hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder is an actuator in the hydraulic transmission system. It is an energy conversion device that converts hydraulic energy into mechanical energy. The hydraulic motor realizes continuous rotary motion, while the hydraulic cylinder realizes reciprocating motion. The structural types of hydraulic cylinders are piston cylinders, plunger cylinders, and swing cylinders. The piston cylinder and plunger cylinder realize reciprocating linear motion, output speed and thrust, and the swing cylinder realizes reciprocating swing, output angular velocity (speed) and torque. In addition to being used individually, hydraulic cylinders can also be combined in two or more or in combination with other mechanisms.

[0003] For example, a hydraulic cylinder protection device with the authorization announcement number "CN214146102U" is provided with a base on the bottom plate, and a cover plate is provided on the base to cover the hydraulic cylinder, which can increase the lateral structural strength of the hydraulic cylinder and reduce the possibility of hydraulic cylinder explosion. The front and rear sides of the bottom plate are connected with U-shaped connecting plates, and a protective rod is provided between the U-shaped connecting plates on both sides. On the one hand, it can cooperate with the bottom plate to increase the supporting strength of the hydraulic cylinder and reduce the possibility of compression deformation of the hydraulic cylinder. On the other hand, it can increase the lateral protection effect to prevent heavy objects from directly hitting the surface of the cylinder body and causing deformation of the cylinder body. However, the hydraulic cylinder The protective device protects the hydraulic cylinder through a cover plate and a protective rod. Since the shapes and sizes of the cover plate and the protective rod are fixed, when a thicker or thinner hydraulic cylinder needs to be protected, the operator needs to switch to other compatible machines for protection, which increases the working limitations. At the same time, the protective device of the hydraulic cylinder, when the piston rod of the hydraulic cylinder is retracted into the hydraulic cylinder after work, due to some impurities attached to the surface of the piston rod during work, if it is not cleaned in time, it is easy to cause damage to the hydraulic cylinder, so the operator needs to inspect and repair the hydraulic cylinder, thereby reducing the service life of the hydraulic cylinder. Utility Model Content

[0004] The purpose of the utility model is to solve the problem of protecting the hydraulic cylinder by a cover plate and a protective rod. Since the shapes and sizes of the cover plate and the protective rod are fixed, when a thicker or thinner hydraulic cylinder needs to be protected, the operator needs to switch to other machines that are compatible with it for protection, thereby increasing the working limitations. At the same time, the protection device of the hydraulic cylinder, when the piston rod of the hydraulic cylinder is retracted into the inside of the hydraulic cylinder after work, some impurities are attached to the surface of the piston rod during the working process. If it is not cleaned in time, it is easy to cause damage to the hydraulic cylinder, thereby requiring the operator to inspect and repair the hydraulic cylinder, thereby reducing the service life of the hydraulic cylinder. A protective structure for a large hydraulic cylinder is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A protective structure for a large hydraulic cylinder is designed, including a base plate and a box body, the raised surface of the base plate is symmetrically provided with cleaning mechanisms, a plurality of auxiliary fixing mechanisms are provided inside the box body, the surface of the box body is fixedly connected to the surface of the base plate, a cover plate is hinged on the surface of the box body, and a groove is processed on the right side of the box body.

[0007] Preferably, the cleaning mechanism includes a first shell, the surface of the first shell is fixedly connected to the raised surface of the bottom plate, the first shell is slidably connected to a handle in a sliding groove processed thereon, the handle surface is fixedly connected to a cross bar, the cross bar is slidably connected to the sliding groove processed thereon, the cross bar is fixedly connected to the inner wall of the sleeve via a spring, the surface of the sleeve is fixedly connected to the inner wall of the first shell, and the cross bar is slidably connected to the first shell via a through hole.

[0008] Preferably, a scraper is installed at the end of the cross bar, and the first shell is connected to the bolt through threads.

[0009] Preferably, the auxiliary fixing mechanism includes a second shell, which is rotatably connected to the handlebar via a bearing, and the handlebar surface is fixedly connected to two first bevel gears, which are respectively meshed with two second bevel gears, and the surfaces of the two second bevel gears are fixedly connected to studs, which are rotatably connected to the second shell via a bearing, and the two studs are rotatably connected to a fixed plate via a bearing, and the surfaces of the two studs are threadedly connected to two clamps, and the four clamps are slidably connected to a slide groove processed on the second shell.

[0010] Preferably, the handle is rotatably connected to the box body via a bearing, and the second shell surface is fixedly connected to the inner wall of the box body.

[0011] The utility model proposes a protective structure for a large hydraulic cylinder, which has the beneficial effect that: through the cooperation of the splint and the auxiliary fixing mechanism, the rotation of the handle drives the two first bevel gears to rotate, thereby driving the two second bevel gears to rotate, the rotation of the two second bevel gears drives the two studs to rotate, and the rotation of the two studs drives the four splints to slide along the slide grooves processed on the second outer shell, so that when a thicker or thinner large hydraulic cylinder needs to be protected, there is no need for the operator to switch to other compatible machines for protection, thereby reducing work limitations.

[0012] Through the cooperation of the scraper and the cleaning mechanism, the handle moves to the left to drive the cross bar to slide along the slide groove processed on the sleeve, and at the same time compresses the spring to achieve timely cleaning, which is not easy to cause damage to the hydraulic cylinder, thereby reducing the probability of operators overhauling large hydraulic cylinders, thereby increasing the service life of large hydraulic cylinders. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A top sectional view of

[0015] Figure 3 for Figure 2 A top sectional view of the auxiliary fixing mechanism;

[0016] Figure 4 for Figure 2 A front cross-sectional view of a part of the auxiliary fixing mechanism;

[0017] Figure 5 for Figure 1 Partial right view;

[0018] Figure 6 for Figure 1 Left side sectional view of the cleaning mechanism.

[0019] In the figure: 1, bottom plate, 2, box body, 3, cleaning mechanism, 301, first shell, 302, handle, 303, cross bar, 304, spring, 305, sleeve cover, 4, scraper, 5, groove, 6, cover, 7, auxiliary fixing mechanism, 701, second shell, 702, handle, 703, splint, 704, first bevel gear, 705, second bevel gear, 706, fixing plate, 707, stud. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Refer to the attached Figure 1-6 In the present embodiment, a protective structure for a large hydraulic cylinder includes a base plate 1 and a box body 2. A cleaning mechanism 3 is symmetrically provided on the raised surface of the base plate 1. A plurality of auxiliary fixing mechanisms 7 are provided inside the box body 2. The surface of the box body 2 is fixedly connected to the surface of the base plate 1. A cover plate 6 is hinged on the surface of the box body 1. A groove 5 is processed on the right side of the box body 1. A scraper 4 is installed on the end of the cross bar 303. The movement of the cross bar 303 drives the scraper 4 to move. The first shell 301 is connected to the bolt 306 by threads. The turning handle 702 is rotatably connected to the box body 2 by a bearing. The surface of the second shell 701 is fixedly connected to the inner wall of the box body 2.

[0022] Refer to the attached Figure 6

[0023] The cleaning mechanism 3 includes a first shell 301, the surface of the first shell 301 is fixedly connected to the raised surface of the bottom plate 1, the sliding groove processed on the first shell 301 is slidably connected to the handle 302, the surface of the handle 302 is fixedly connected to the cross bar 303, the cross bar 303 is slidably connected to the sliding groove processed on the sleeve 305, the cross bar 303 is fixedly connected to the inner wall of the sleeve 305 through a spring 304, the elastic coefficient of the spring 304 is selected according to actual needs to meet the working needs, the surface of the sleeve 305 is fixedly connected to the inner wall of the first shell 301, the cross bar 303 is slidably connected to the first shell 301 through a through hole, the handle 302 is pulled, the handle 302 moves to the left, driving the cross bar 303 to slide along the sliding groove processed on the sleeve 305, and compressing the spring 304 at the same time.

[0024] Refer to the attached Figure 3-4

[0025] The auxiliary fixing mechanism 7 includes a second shell 701, which is rotatably connected to the turning handle 702 through a bearing. Two first bevel gears 704 are fixedly connected to the surface of the turning handle 702. The two first bevel gears 704 are respectively meshed with the two second bevel gears 705. Studs 707 are fixedly connected to the surfaces of the two second bevel gears 705. The studs 707 are rotatably connected to the second shell 701 through a bearing. The two studs 707 are rotatably connected to the fixing plate 706 through a bearing. The surfaces of the two studs 707 are both threadedly connected to the two clamping plates 703. The four clamping plates 703 are all slidably connected to the sliding grooves processed on the second shell 701. When the turning handle 702 is rotated, the rotation of the turning handle 702 drives the two first bevel gears 704 to rotate, thereby driving the two second bevel gears 705 to rotate. The rotation of the two second bevel gears 705 drives the two studs 707 to rotate. The rotation of the two studs 707 drives the four clamping plates 703 to slide along the sliding grooves processed on the second shell 701.

[0026] Working principle:

[0027] When using protective structures to protect large hydraulic cylinders:

[0028] Preparation process:

[0029] First, open the cover 6, and then place the large hydraulic cylinder that needs to be protected between multiple clamps 703. The operator turns the left handle 702 clockwise. The rotation of the handle 702 drives the two first bevel gears 704 to rotate, thereby driving the two second bevel gears 705 to rotate. The rotation of the two second bevel gears 705 drives the two studs 707 to rotate. The rotation of the two studs 707 drives the four clamps 703 to slide relative to each other along the slide grooves processed on the second shell 701. Similarly, turn the right handle 702 counterclockwise, and the four clamps 703 on the right side slide relative to each other. When the surfaces of the eight clamps 703 are tightly fitted with the surface of the large hydraulic cylinder, the operator stops turning the two handles 702, and then covers the cover to fix the large hydraulic cylinder that needs to be protected in the box body 2. The large hydraulic cylinder that needs to be protected is protected by the box body 2 and the cover 6. The clamps 703 can fix large hydraulic cylinders of different models, thereby reducing work limitations.

[0030] Large hydraulic cylinder cleaning process:

[0031] When the large hydraulic cylinder is working, the piston rod passes through the groove 5, and the operator manually pulls the two handles 302 in opposite directions. The two handles 302 move to drive the cross bar 303 to slide along the slide groove processed on the sleeve 305, and at the same time compress the spring 304. The two cross bars 303 gradually move away from each other, driving the two scrapers 4 to gradually move away from each other, and then the piston rod passes between the two scrapers 4. After the piston rod passes through, the operator slowly releases the handle and uses the elasticity of the spring 304 to make the two cross bars 303 drive the two scrapers 4 to move relative to each other. When the scraper 4 (the scraper 4 can be installed on the end of the cross bar 303 according to the diameter of the piston rod) surface fits with the surface of the piston rod, the operator manually rotates the two bolts 306 counterclockwise to make the surfaces of the two bolts 306 press against the surface of the cross bar 303. When the piston rod is retracted after work, the scraper 4 can scrape off the dust attached to the surface of the piston rod to prevent impurities from entering the large hydraulic cylinder, reducing the probability of operators overhauling the large hydraulic cylinder, thereby increasing the service life of the large hydraulic cylinder.

[0032] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A protective structure for a large hydraulic cylinder, comprising a base plate (1) and a box body (2), characterized in that: The raised surface of the bottom plate (1) is symmetrically provided with a cleaning mechanism (3), a plurality of auxiliary fixing mechanisms (7) are provided inside the box body (2), the surface of the box body (2) is fixedly connected to the surface of the bottom plate (1), a cover plate (6) is hingedly connected to the surface of the box body (2), and a groove (5) is processed on the right side of the box body (2).

2. A protective structure for a large hydraulic cylinder according to claim 1, characterized in that: The cleaning mechanism (3) comprises a first shell (301), the surface of the first shell (301) is fixedly connected to the raised surface of the bottom plate (1), a handle (302) is slidably connected to a sliding groove processed on the first shell (301), a cross bar (303) is fixedly connected to the surface of the handle (302), the cross bar (303) is slidably connected to a sliding groove processed on a sleeve (305), the cross bar (303) is fixedly connected to the inner wall of the sleeve (305) via a spring (304), the surface of the sleeve (305) is fixedly connected to the inner wall of the first shell (301), and the cross bar (303) is slidably connected to the first shell (301) via a through hole.

3. A protective structure for a large hydraulic cylinder according to claim 2, characterized in that: A scraper (4) is installed at the end of the cross bar (303), and the first housing (301) is connected to the bolt (306) through threads.

4. The protective structure for a large hydraulic cylinder according to claim 1, characterized in that: The auxiliary fixing mechanism (7) comprises a second shell (701), the second shell (701) is rotatably connected to the handlebar (702) via a bearing, two first bevel gears (704) are fixedly connected to the surface of the handlebar (702), the two first bevel gears (704) are respectively meshed with two second bevel gears (705), the surfaces of the two second bevel gears (705) are fixedly connected with studs (707), the studs (707) are rotatably connected to the second shell (701) via a bearing, the two studs (707) are rotatably connected to a fixing plate (706) via a bearing, the surfaces of the two studs (707) are threadedly connected to two clamping plates (703), and the four clamping plates (703) are slidably connected to the slide grooves processed on the second shell (701).

5. A protective structure for a large hydraulic cylinder according to claim 4, characterized in that: The turning handle (702) is rotatably connected to the box body (2) via a bearing, and the surface of the second outer shell (701) is fixedly connected to the inner wall of the box body (2).

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