Hydraulic cylinder with dustproof seal

Abstract

The utility model provides a hydraulic cylinder with a dustproof seal, which relates to the technical field of hydraulic cylinders, and comprises a hydraulic cylinder body, the inner side of the hydraulic cylinder body is connected with a hydraulic rod, the upper side of the hydraulic cylinder body is provided with a hydraulic dustproof seal assembly, and the upper side of a placement frame is welded with a cleaning tank. Sealing washers are arranged at the upper end and the lower end of the inner side of the cleaning tank, a lower clamping piece is installed on the upper side of a supporting screw rod, a clamping groove in the upper side of the lower clamping piece is connected with a middle-layer clamping hoop, an upper clamping piece is installed on the upper side of the middle-layer clamping hoop, and limiting bolts are installed on the left side and the right side of the upper clamping piece. According to the hydraulic dustproof sealing assembly, when the hydraulic dustproof sealing assembly needs to be used, the lower clamping piece and the upper clamping piece clamp the middle-layer clamp, in this way, the stability of the cleaning sponge in the reciprocating motion of the hydraulic rod can be guaranteed, supporting is provided for the cleaning sponge, and the outer ring of the cleaning sponge is made of rubber materials and can be better arranged on the middle-layer clamp in a sleeving mode.

Description

TECHNICAL FIELD

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

[0002] Hydraulic cylinder is a kind of hydraulic energy conversion mechanical energy, do linear reciprocating motion or swing motion hydraulic actuator, it simple structure, work reliably, in the hydraulic system of various machines, such as engineering machinery, mining machinery, metallurgical equipment etc., its basic structure includes cylinder, cylinder cover, piston, piston rod etc.

[0003] Through the search, the announcement number "CN220302455U" text mentioned "the utility model discloses a dustproof hydraulic cylinder, including the bottom plate, the top end middle part of the bottom plate is equipped with the positioning slot, the four corners position of the bottom plate top is equipped with the installation groove, the installation groove is communicated with the positioning slot through the through slot, the inside installation of the installation groove is equipped with the clamping mechanism", it when using, the utility model is provided with the cooperation of sleeve, telescopic cylinder and cover plate, hydraulic cylinder body drives telescopic cylinder to move, in the moving process, sliding block slidingly connects in the inside of sliding slot, prevents dust from reaching the surface of hydraulic cylinder body, simultaneously, the cooperation of sealing ring and sealing groove improves the sealing property of the connecting place of cover plate and telescopic cylinder, blocks dust from reaching the surface of hydraulic cylinder body telescopic end, can realize dustproof function, in the use process, it is convenient to block dust, sand and other impurities into cylinder body, so that hydraulic cylinder can adapt to harsh use environment, prolongs the service life of hydraulic cylinder, and it is more flexible to use.

[0004] However, since hydraulic cylinder is susceptible to dust and other contaminants in the process of using, thereby causing hydraulic oil pollution, this not only can affect the performance of hydraulic cylinder, but also can cause internal component wear and damage, and the conventional dustproof of hydraulic cylinder is mostly equipped with a telescopic tube outside the hydraulic cylinder, and the cleaning effect of this kind of mode is poor, and long-time use is also susceptible to dust invasion.

[0005] Therefore, we provide a kind of hydraulic cylinder with dustproof seal to solve the above problems. UTILITY MODEL CONTENTS

[0006] In order to make up for the above shortcomings, the utility model provides a kind of hydraulic cylinder with dustproof seal.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] The utility model provides a hydraulic cylinder with dustproof seal, including hydraulic cylinder body, the inside connection of hydraulic cylinder body has hydraulic rod, the upside of hydraulic cylinder body is provided with hydraulic dustproof seal assembly, hydraulic dustproof seal assembly includes the connecting groove of welding in hydraulic cylinder body top, the center of connecting groove is installed and wipes oil piece, the inside clamping groove connection of connecting groove has the placement frame, the upside of placement frame is welded with cleaning tank, the outside of cleaning tank is provided with observation window, the downside of observation window is provided with oil change port, the inside of cleaning tank is provided with sealing washer up and down both ends, the left and right sides of cleaning tank are provided with support screw rod, the upside of support screw rod is installed with lower clamping piece, the upside clamping groove connection of lower clamping piece has middle layer clamping hoop, the upside of middle layer clamping hoop is installed with upper clamping piece, the left and right sides of upper clamping piece are installed with limit bolt.

[0009] As a further description of the above technical solutions:

[0010] The clamping groove connection is between the wiping oil piece and the connecting groove, the inner surface of the wiping oil piece and the outer surface of the hydraulic rod are mutually attached, and the wiping oil piece is made of polypropylene fiber material.

[0011] As a further description of the above technical solutions:

[0012] The welding is between the observation window and the cleaning tank, and the observation window is made of tempered glass material.

[0013] As a further description of the above technical solutions:

[0014] The welding is between the oil change port and the cleaning tank, and the oil change port is level with the lower side of the cleaning tank.

[0015] As a further description of the above technical solutions:

[0016] The adhesive connection is between the sealing washer and the cleaning tank, the inner wall of the sealing washer is tightly attached to the outer wall of the hydraulic rod, the sealing washer is symmetrically arranged in two groups, and the cleaning tank and the hydraulic rod form a closed structure through the sealing washer.

[0017] As a further description of the above technical solutions:

[0018] The threaded connection is between the support screw rod and the limit bolt, the lower clamping piece, the middle layer clamping hoop and the upper clamping piece form a limiting structure through the support screw rod cooperating with the limit bolt, and the diameters of the lower clamping piece, the middle layer clamping hoop and the upper clamping piece are the same.

[0019] As a further description of the above technical solutions:

[0020] The inside of the middle layer clamping hoop is wrapped with a cleaning sponge, the outer ring of the cleaning sponge is made of rubber material, and the cleaning sponge is made of polyester sponge material.

[0021] Compared with the prior art, the utility model has the advantages of:

[0022] 1、The utility model discloses a hydraulic dustproof sealing assembly, and staff can observe the oil condition in the cleaning tank through the observation window at any time, find the impurity or moisture in the oil in time, ensure that the hydraulic system is normal in operation, and the staff can suck the oil in the cleaning tank out through opening the oil replacement port, thereby replacing the oil, and the oil replacement port is located at the lower side, so that it is more convenient to suck the oil at the bottom end, and the residual oil amount in the oil replacement process is reduced, and the sealing washer can effectively prevent the oil in the cleaning tank from overflowing and prevent the invasion of external pollutants, so that better dustproof sealing effect is achieved.

[0023] 2、The utility model discloses a hydraulic dustproof sealing assembly, when needing to use, the lower clamping sheet and the upper clamping sheet hold the middle layer clamp, so that the stability of the cleaning sponge in the reciprocating operation of the hydraulic rod is guaranteed, and the cleaning sponge is supported, and the outer circle rubber material of the cleaning sponge can be better on the middle layer clamp, and the cleaning sponge wipes the hydraulic rod and reduces the dust. DRAWINGS

[0024] Figure 1 It is the overall appearance structure schematic diagram of the utility model;

[0025] Figure 2 It is the overall structure schematic diagram of the utility model's hydraulic dustproof sealing assembly;

[0026] Figure 3 It is the cooperation structure schematic diagram of the utility model's connecting groove and polishing disc;

[0027] Figure 4 It is the overall split structure schematic diagram of the utility model's hydraulic dustproof sealing assembly;

[0028] Figure 5 It is the cooperation structure schematic diagram of the utility model's cleaning tank to limit bolt;

[0029] Figure 6 It is the internal structure schematic diagram of the utility model's cleaning tank.

[0030] Marked number in the drawing: 1, hydraulic cylinder body;2, hydraulic rod;3, hydraulic dustproof sealing assembly;301, connecting groove;302, oil wiping piece;303, placing frame;304, cleaning tank;305, observation window;306, oil replacement port;307, sealing washer;308, support screw;309, lower clamping sheet;310, middle layer clamp;311, cleaning sponge;312, upper clamping sheet;313, limit bolt. DETAILED DESCRIPTION

[0031] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of the utility model protection.

[0032] Please refer to Figures 1-6 The utility model provides a technical scheme: a hydraulic cylinder with dustproof seal, including hydraulic cylinder body 1, the inside connection of hydraulic cylinder body 1 has hydraulic rod 2, the upside of hydraulic cylinder body 1 is provided with hydraulic dustproof seal assembly 3, hydraulic dustproof seal assembly 3 includes the connecting groove 301 welded in the top of hydraulic cylinder body 1, the center of connecting groove 301 is installed with oil wiping sheet 302, the inside snap groove of connecting groove 301 is connected with the installation frame 303, the upside of installation frame 303 is welded with cleaning tank 304, the outside of cleaning tank 304 is provided with observation window 305, the downside of observation window 305 is provided with oil change port 306, the inside of cleaning tank 304 both ends is provided with sealing washer 307, the left and right sides of cleaning tank 304 are provided with support screw 308, the upside of support screw 308 is installed with lower clamping piece 309, the upside snap groove of lower clamping piece 309 is connected with middle layer clamp 310, the upside of middle layer clamp 310 is installed with upper clamping piece 312, the left and right sides of upper clamping piece 312 are installed with limit bolt 313.

[0033] Further, the snap groove connection between the oil wiping sheet 302 and the connecting groove 301, the inner surface of the oil wiping sheet 302 and the outer surface of the hydraulic rod 2 are mutually attached, the oil wiping sheet 302 is polypropylene fiber material, when needing to use, along with the reciprocating operation of the hydraulic rod 2, the oil wiping sheet 302 will wipe the surface of the hydraulic rod 2, most of the oil on the surface of the hydraulic rod 2 is adsorbed, so that the dustproof effect is achieved.

[0034] Further, the welding between the observation window 305 and the cleaning tank 304, the observation window 305 is tempered glass material, when needing to use, the staff can observe the oil condition in the cleaning tank 304 through the observation window 305 at any time, timely find the impurities or moisture in the oil, ensure the normal operation of the hydraulic system.

[0035] Further, the welding between the oil change port 306 and the cleaning tank 304, the oil change port 306 and the lower side bottom position of the cleaning tank 304 are flat, when needing to use, the staff can suck out the oil in the cleaning tank 304 by opening the oil change port 306, so that the oil replacement is carried out, and the oil change port 306 is located at the lower side position, so that it is more convenient to suck the oil at the bottom end, and the residual oil amount in the oil change process is reduced.

[0036] Further, the sealing gasket 307 is adhesively connected between the cleaning tank 304, the inner wall of the sealing gasket 307 is tightly attached to the outer wall of the hydraulic rod 2, the sealing gasket 307 is symmetrically arranged in two groups from top to bottom, the cleaning tank 304 and the hydraulic rod 2 form a closed structure through the sealing gasket 307, when it is needed to be used, the sealing gasket 307 can effectively prevent the oil in the cleaning tank 304 from overflowing and prevent the invasion of external pollutants, so that better sealing and dustproof effect is achieved.

[0037] Further, the support screw 308 is threadedly connected with the limiting bolt 313, the lower clamping piece 309, the middle layer clamp 310 and the upper clamping piece 312 form a limiting structure through the limiting bolt 313 cooperating with the support screw 308, the lower clamping piece 309 and the upper clamping piece 312 are the same in diameter, when it is needed to be used, the middle layer clamp 310 is clamped through the lower clamping piece 309 and the upper clamping piece 312, so that the stability of the cleaning sponge 311 during the reciprocating operation of the hydraulic rod 2 is ensured and the cleaning sponge 311 is supported.

[0038] Further, the inside of the middle layer clamp 310 is wrapped with the cleaning sponge 311, the outer ring of the cleaning sponge 311 is made of rubber material, the cleaning sponge 311 is made of polyester sponge material, when it is needed to be used, the outer ring of the cleaning sponge 311 made of rubber material can be better sleeved on the middle layer clamp 310, and the cleaning sponge 311 wipes the hydraulic rod 2 to reduce the dust brought in.

[0039] Working principle: when it is needed to be used, the cleaning oil is first poured into the cleaning tank 304 on the mounting frame 303 through the oil changing port 306, after preparation, the cleaning sponge 311 is sleeved on the inside of the middle layer clamp 310 and is clamped through the lower clamping piece 309 and the upper clamping piece 312, and then is fixed on the support screw 308 through the limiting bolt 313, after preparation, it is brought to the position where it is needed to be used, the hydraulic rod 2 is reciprocated by the hydraulic cylinder body 1, at this time, the hydraulic rod 2 passes through the cleaning tank 304, the oil is restrained in the cleaning tank 304 by the sealing gasket 307, and the floating dust outside is wiped by the cleaning sponge 311, in the process of retraction, the surface of the hydraulic rod 2 will inevitably adhere to a certain oil, and the oil wiping sheet 302 in the middle of the connecting groove 301 adsorbs part of the oil, with use, the oil in the cleaning tank 304 will be consumed and contaminated, the inside of the cleaning tank 304 can be observed by the worker through the observation window 305, so that the use process of the hydraulic cylinder with dustproof sealing is completed.

[0040] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder with a dustproof seal, comprising a hydraulic cylinder body (1), characterized in that: A hydraulic rod (2) is connected to the inner side of the hydraulic cylinder body (1). A hydraulic dustproof sealing assembly (3) is provided on the upper side of the hydraulic cylinder body (1). The hydraulic dustproof sealing assembly (3) includes a connecting groove (301) welded to the top of the hydraulic cylinder body (1). An oil wiping plate (302) is installed at the center of the connecting groove (301). A mounting bracket (303) is connected to the inner side of the connecting groove (301). A cleaning tank (304) is welded to the upper side of the mounting bracket (303). An observation window (305) is provided on the outer side of the cleaning tank (304). An oil change port (306) is provided on the lower side of the observation window (305). Sealing gaskets (307) are provided at both the upper and lower ends of the inner side of the cleaning tank (304). Support screws (308) are provided on both the left and right sides of the cleaning tank (304). A lower clamp (309) is installed on the upper side of the support screw (308). A middle clamp (310) is connected to the upper groove of the lower clamp (309). An upper clamp (312) is installed on the upper side of the middle clamp (310). Limit bolts (313) are installed on both the left and right sides of the upper clamp (312).

2. A hydraulic cylinder with a dustproof seal according to claim 1, characterized in that, The wiping pad (302) and the connecting groove (301) are connected by a slot. The inner surface of the wiping pad (302) is in contact with the outer surface of the hydraulic rod (2). The wiping pad (302) is made of polypropylene fiber.

3. A hydraulic cylinder with a dustproof seal according to claim 1, characterized in that, The observation window (305) is welded to the cleaning tank (304), and the observation window (305) is made of tempered glass.

4. A hydraulic cylinder with a dustproof seal according to claim 1, characterized in that, The oil change port (306) and the cleaning tank (304) are welded together, and the oil change port (306) and the bottom of the cleaning tank (304) are flush.

5. A hydraulic cylinder with a dustproof seal according to claim 1, characterized in that, The sealing gasket (307) and the cleaning tank (304) are bonded together. The inner wall of the sealing gasket (307) is tightly fitted to the outer wall of the hydraulic rod (2). The sealing gaskets (307) are arranged in two symmetrical sets, and the cleaning tank (304) and the hydraulic rod (2) form a sealed structure through the sealing gaskets (307).

6. A hydraulic cylinder with a dustproof seal according to claim 1, characterized in that, The support screw (308) and the limiting bolt (313) are connected by threads. The lower clamp (309), the middle clamp (310) and the upper clamp (312) are connected by the limiting bolt (313) and the support screw (308) to form a limiting structure. The lower clamp (309) has the same diameter as the middle clamp (310) and the upper clamp (312).

7. A hydraulic cylinder with a dustproof seal according to claim 1, characterized in that, The inner side of the middle clamp (310) is wrapped with a cleaning sponge (311), the outer ring of the cleaning sponge (311) is made of rubber, and the cleaning sponge (311) is made of polyester sponge.

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