Dustproof structure of hydraulic oil cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinder dust prevention, and discloses a hydraulic oil cylinder dust prevention structure which comprises a hydraulic oil cylinder body, a piston rod is connected into the hydraulic oil cylinder body in a sliding mode, and a disassembly assembly is installed on the side face of the hydraulic oil cylinder body. The disassembling assembly comprises a fixing block, the side face of the fixing block is fixedly connected with the side face of the hydraulic oil cylinder body, a clamping groove is formed in the side face of the fixing block, a connecting block is slidably connected into the fixing block, the side face of the connecting block is fixedly connected with a clamping block, and a spring is fixedly connected into the fixing block. One end of the spring is fixedly connected with a gasket, and a dust removal assembly is arranged in the connecting block. According to the dustproof hydraulic cylinder, the connecting block is matched with the fixing block, the clamping block and the clamping groove are used for achieving convenient installation and disassembly of the dustproof assembly, maintenance and replacement are convenient, operation is easy, working efficiency is improved, dustproof work of the hydraulic cylinder is guaranteed, and stable operation of the hydraulic cylinder is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic oil cylinder dustproof technical field especially relates to a hydraulic oil cylinder dustproof structure. BACKGROUND

[0002] The dustproof structure of hydraulic oil cylinder is key and multiple. Under various working conditions, it can effectively block the invasion of impurities such as dust and sand into the inside of the oil cylinder, with the extension and retraction of the piston rod, drill into the cylinder barrel, wear the sealing element, cause hydraulic oil leakage, not only reduce the equipment working efficiency, increase the operation and maintenance cost, but also may pollute the working environment, at the same time, can protect the sealing element, piston, cylinder barrel and other key components, greatly reduce the damage such as scratch and jam caused by impurity invasion, prolong the service life of the components, reduce the cost and downtime loss caused by frequent replacement.

[0003] At present, the hydraulic oil cylinder is generally dustproof through the dustproof ring, the dustproof ring is installed on the outside of the piston rod extension end, the dustproof ring is provided with a lip-shaped structure, in operation, the lip-shaped part is closely attached to the piston rod, dust, sand and other impurities are blocked outside the hydraulic cylinder, whenever the piston rod retracts, the dust adhered to the surface of the piston rod is scraped off, preventing it from entering the cylinder, at the same time, the dustproof ring also cooperates with the sealing element, on the basis of blocking dust, isolating the outside humid air and small water droplets, reducing the risk of salt-containing moisture invasion.

[0004] Although the above-mentioned dustproof ring realizes dustproof treatment of the hydraulic cylinder, due to the harsh working environment of the hydraulic cylinder, when the hydraulic cylinder works for a long time, the dustproof ring will be worn due to the influence of dust and other impurities, causing gaps between the dustproof ring and the hydraulic rod, so that fine dust and particles can enter the cylinder body through the dustproof ring, thereby affecting the work of the hydraulic oil cylinder and reducing the service life of the hydraulic oil cylinder, therefore, a hydraulic oil cylinder dustproof structure is proposed to solve the above-mentioned problems. Utility model content

[0005] In order to make up for the above shortcomings, the utility model provides a hydraulic oil cylinder dustproof structure, which aims at improving the problem that the existing hydraulic oil cylinder is easy to cause the dustproof ring to wear and affect the work of the hydraulic oil cylinder in harsh environment for a long time.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A kind of hydraulic oil cylinder dustproof structure, including hydraulic oil cylinder body, the inside of the hydraulic oil cylinder body is slidably connected with piston rod, and the side surface of the hydraulic oil cylinder body is provided with dismounting assembly;The side surface of the fixed block is fixedly connected with the side surface of the hydraulic oil cylinder body, the side surface of the fixed block is equipped with clamping groove, the inside of the fixed block is slidably connected with connecting block, the side surface of the connecting block is fixedly connected with clamping block, and the inside of the connecting block is provided with dust removal assembly;

[0008] As a further description of the above technical solutions:

[0009] The dust removal assembly comprises a sealing layer, the outer periphery of the sealing layer is fixedly connected with the inner part of the connecting block, and a scraper is fixedly connected to the inner part of the connecting block.

[0010] As a further description of the above technical solutions:

[0011] The dust removal assembly comprises a water absorption layer, and the water absorption layer is specifically made of sponge material.

[0012] As a further description of the above technical solutions:

[0013] The dust removal assembly comprises an oil absorption layer, and the oil absorption layer is specifically made of degreasing cotton material.

[0014] As a further description of the above technical solutions:

[0015] The inner part of the fixed block is fixedly connected with a spring, and one end of the spring is fixedly connected with a gasket.

[0016] As a further description of the above technical solutions:

[0017] The inner part of the hydraulic oil cylinder body is fixedly connected with a threaded rod, and the outer periphery of the threaded rod is threadedly connected with a nut.

[0018] As a further description of the above technical solutions:

[0019] The side surface of the hydraulic oil cylinder body is provided with an oil inlet cavity, and the side surface of the hydraulic oil cylinder body is provided with an oil outlet cavity.

[0020] As a further description of the above technical solutions:

[0021] The outer periphery of the piston rod is slidably connected with a sealing ring and a wear-resistant ring, the inner part of the hydraulic oil cylinder body is slidably connected with a piston sealing ring, and the side surface of the piston sealing ring is fixedly connected with a piston.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1. In the utility model, the dustproof assembly is conveniently installed and dismounted by the cooperation of the connecting block and the fixed block, the realization of the dustproof assembly by the clamping groove of the clamping block, convenient maintenance and replacement, simple operation, improved work efficiency, protection of the dustproof work of the hydraulic oil cylinder, and stable operation.

[0024] 2. In the utility model, the sealing layer, the scraper, the water absorption layer and the oil absorption layer play different roles when the piston rod is extended and retracted, block impurities, scrape dust, absorb moisture and adsorb oil stains, ensure normal work and prolong the service life of the hydraulic oil cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A kind of hydraulic oil cylinder dustproof structure's stereoscopic schematic view is proposed for the utility model;

[0026] Figure 2 A kind of hydraulic oil cylinder dustproof structure's fixed block structure schematic view is proposed for the utility model;

[0027] Figure 3 A kind of hydraulic oil cylinder dustproof structure's connecting block section structure schematic view is proposed for the utility model;

[0028] Figure 4 A kind of hydraulic oil cylinder dustproof structure's hydraulic oil cylinder body section structure schematic view is proposed for the utility model.

[0029] Legend:

[0030] 1, hydraulic oil cylinder body;2, connecting block;3, fixed block;4, oil inlet cavity;5, oil outlet cavity;6, threaded rod;7, nut;8, piston rod;9, gasket;10, spring;11, clamping block;12, clamping groove;13, sealing layer;14, scraper;15, water absorption layer;16, oil absorption layer;17, sealing ring;18, wear ring;19, piston;20, piston sealing ring. Specific embodiments

[0031] The technical scheme in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0032] Reference Figure 1 and Figure 2The utility model provides a kind of embodiment: a hydraulic cylinder dustproof structure, including hydraulic cylinder body 1, the inside sliding connection of hydraulic cylinder body 1 has piston rod 8, and the side surface of hydraulic cylinder body 1 is equipped with dismounting assembly;Dismounting assembly includes fixed block 3, and the side surface of fixed block 3 is fixedly connected with the side surface of hydraulic cylinder body 1, and the side surface of fixed block 3 is equipped with clamping groove 12, and the inside sliding connection of fixed block 3 has connecting block 2, and the side surface of connecting block 2 is fixedly connected with clamping block 11, by moving connecting block 2 to the inside of fixed block 3, so that clamping block 11 and clamping groove 12 will contact, at this time, by rotating connecting block 2, so that clamping block 11 and clamping groove 12 are mutually clamped, and the inside of fixed block 3 is fixedly connected with spring 10, and one end of spring 10 is fixedly connected with gasket 9, when connecting block 2 moves to the inside of fixed block 3, gasket 9 will be moved, so that gasket 9 will extrude spring 10, so that spring 10 is stressed to contract, when clamping block 11 and clamping groove 12 are mutually clamped, under the tension of spring 10 reset, gasket 9 will make clamping block 11 and clamping groove 12 be more stably connected, and the inside of connecting block 2 is provided with dust removal assembly, for cleaning when piston rod 8 telescopes, prevent dust and sundries from affecting the normal work of hydraulic cylinder.

[0033] Embodiment one:

[0034] Refer to Figure 3 Dust removal assembly includes sealing layer 13, and the periphery of sealing layer 13 is fixedly connected with the inside of connecting block 2, and sealing layer 13 is specifically made of rubber material, can be kept out dust and sundries, and the inside of connecting block 2 is fixedly connected with scraper 14, and dust and sundries on the surface of piston rod 8 can be scraped off under the action of scraper 14.

[0035] Embodiment two:

[0036] Refer to Figure 3 Different from the above embodiment, the utility model also provides one embodiment: dust removal assembly includes water absorption layer 15, and water absorption layer 15 is specifically made of sponge material, can absorb moisture on the surface of piston rod 8, so as to prevent moisture from entering cylinder body through piston rod 8.

[0037] Embodiment three:

[0038] Refer to Figure 3 Different from the above embodiment, the utility model also provides one embodiment: dust removal assembly includes oil absorption layer 16, and oil absorption layer 16 is specifically made of degreasing cotton material, and degreasing cotton is a common oil absorption material, which has abundant fiber structure.There are a large number of micro gaps between these fibers, when hydraulic oil contacts degreasing cotton, hydraulic oil will be absorbed in these gaps by capillary action, so as to absorb oil stains on the surface of piston rod 8 contaminated by external dust and sundries.

[0039] Refer to Figure 1And Figure 4 The inside of the hydraulic cylinder body 1 is fixedly connected with a threaded rod 6, the outer periphery of the threaded rod 6 is threadedly connected with a nut 7, so that the hydraulic cylinder is conveniently installed, the side of the hydraulic cylinder body 1 is provided with an oil inlet cavity 4, the side of the hydraulic cylinder body 1 is provided with an oil outlet cavity 5, hydraulic oil can be injected through the oil inlet cavity 4 and discharged through the oil outlet cavity 5, the outer periphery of the piston rod 8 is slidingly connected with a sealing ring 17 and a wear-resistant ring 18, the inside of the hydraulic cylinder can be sealed under the action of the sealing ring 17 to prevent air from entering, the wear-resistant ring 18 can reduce the friction between the piston rod 8 and the cylinder body, and the service life of the hydraulic cylinder is improved, the inside of the hydraulic cylinder body 1 is slidingly connected with a piston sealing ring 20, the side of the piston sealing ring 20 is fixedly connected with a piston 19, and the hydraulic system relies on hydraulic oil to transmit power; when hydraulic oil is pumped to one side of the cylinder, the piston 19 is driven to move, and the piston sealing ring 20 prevents hydraulic oil from leaking from the gap between the piston 19 and the cylinder barrel.

[0040] Working principle: first, by moving the connecting block 2 to the inside of the fixed block 3, the gasket 9 is moved, the spring 10 is contracted under stress, at this time the connecting block 2 is rotated, so that the clamping block 11 and the clamping groove 12 are clamped with each other, and the clamping block 11 and the clamping groove 12 are clamped more stably under the tension of the spring 10 reset, so that the dustproof assembly in the connecting block 2 is used for dustproof treatment of the hydraulic cylinder, when the dustproof assembly needs to be maintained and replaced, the clamping block 11 and the clamping groove 12 are separated by extruding and rotating the connecting block 2, so that the dustproof assembly can be quickly maintained and replaced, the operation is convenient, and the working efficiency is improved; secondly, when the piston rod 8 is extended and retracted, the shell blocks dust and particles and other impurities from entering the hydraulic cylinder body under the action of the sealing layer 13, and the dust and particles on the piston rod 8 are scraped off under the action of the scraper 14, the water on the piston rod 8 is absorbed by the shell under the action of the water absorption layer 15, and the oil stains on the surface of the piston rod 8 are adsorbed under the action of the oil absorption layer 16, so that the hydraulic cylinder can work normally and the service life is improved.

[0041] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A dustproof structure of a hydraulic cylinder, comprising a hydraulic cylinder body (1), characterized in that: The inside of the hydraulic oil cylinder body (1) is slidably connected with a piston rod (8), and the side of the hydraulic oil cylinder body (1) is provided with a dismounting assembly; The dismounting assembly comprises a fixed block (3), the side of the fixed block (3) is fixedly connected with the side of the hydraulic oil cylinder body (1), the side of the fixed block (3) is provided with a clamping groove (12), the inside of the fixed block (3) is slidably connected with a connecting block (2), the side of the connecting block (2) is fixedly connected with a clamping block (11), and the inside of the connecting block (2) is provided with a dust removal assembly.

2. The dustproof structure of a hydraulic oil cylinder according to claim 1, characterized in that: The dust removal assembly comprises a sealing layer (13), the outer periphery of the sealing layer (13) is fixedly connected with the inside of the connecting block (2), and the inside of the connecting block (2) is fixedly connected with a scraper (14).

3. The dustproof structure of a hydraulic oil cylinder according to claim 1, characterized in that: The dust removal assembly comprises a water absorption layer (15), and the water absorption layer (15) is made of sponge material.

4. The dustproof structure of a hydraulic oil cylinder according to claim 1, characterized in that: The dust removal assembly comprises an oil absorption layer (16), and the oil absorption layer (16) is made of defatted cotton material.

5. The dustproof structure of a hydraulic oil cylinder according to claim 1, characterized in that: The inside of the fixed block (3) is fixedly connected with a spring (10), one end of the spring (10) is fixedly connected with a gasket (9).

6. The dustproof structure of a hydraulic oil cylinder according to claim 1, characterized in that: The inside of the hydraulic oil cylinder body (1) is fixedly connected with a threaded rod (6), and the outer periphery of the threaded rod (6) is threadedly connected with a nut (7).

7. The dustproof structure of a hydraulic oil cylinder according to claim 1, characterized in that: The side of the hydraulic oil cylinder body (1) is provided with an oil inlet cavity (4), and the side of the hydraulic oil cylinder body (1) is provided with an oil outlet cavity (5).

8. The dustproof structure of a hydraulic oil cylinder according to claim 1, characterized in that: The outer periphery of the piston rod (8) is slidably connected with a sealing ring (17) and a wear-resistant ring (18), the inside of the hydraulic oil cylinder body (1) is slidably connected with a piston sealing ring (20), and the side of the piston sealing ring (20) is fixedly connected with a piston (19).

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