Anti-oiling device for crosshead of compressor

Abstract

The utility model discloses a compressor crosshead anti-oiling device which comprises two inner supporting frames fixedly connected to an inner cavity of a compressor middle shell, annular grooves are formed in the inner walls of the inner supporting frames, a fixing cover is fixedly connected to an inner cavity of each annular groove, an oil sealing sleeve is clamped to an inner cavity of each fixing cover, and the oil sealing sleeves are fixedly connected to the inner walls of the inner supporting frames. A compressor shell is fixedly connected to the right side of the compressor middle body shell, a crosshead is arranged in an inner cavity of the compressor shell, a sealing assembly is arranged in an inner cavity of the oil sealing sleeve, and the sealing assembly comprises an arc-shaped rubber sleeve fixedly connected to the right side of the inner wall of the oil sealing sleeve. The fixing cover, the sealing cover plate and the screw are used in cooperation, the oil sealing sleeve is stably fixed to the inner cavity of the inner supporting frame, meanwhile, the oil sealing sleeve and the sealing assembly are used in cooperation, the surface of the piston rod is wrapped, oil stains are blocked, and the service life of the piston rod is prolonged. Therefore, the purposes of high wrapping sealing performance and effective prevention of oil stains from entering the air pressure cavity can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to compressor protection technical field, especially, relate to a compressor crosshead prevent oil device. BACKGROUND

[0002] The compressor is a kind of mechanical equipment that gas is compressed, its pressure is increased, volume is reduced, it is by consuming external mechanical energy or other forms of energy, work is done to gas, to change the state of gas, to meet the application needs of different industries, life etc.

[0003] In the operation process of compressor, oil stain control related important crosshead part, oil stain enters the inner cavity or air pressure cavity part of compressor body shell, it can lead to compressed air with oil gas or oil stain, to subsequent air pressure equipment damage, for this, need to provide a kind of compressor crosshead prevent oil device, by its stable structure and efficient sealing performance, effectively solve the problem of crosshead part oil stain up, improve the operation stability and reliability of compressor, reduce the equipment failure and maintenance cost caused by oil stain pollution, prolong the service life of equipment. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of compressor crosshead prevent oil device, by its stable structure and efficient sealing performance, effectively solve the problem of crosshead part oil stain up, improve the operation stability and reliability of compressor, reduce the equipment failure and maintenance cost caused by oil stain pollution, prolong the service life of equipment, to solve the above technical problems.

[0005] The utility model solves the technical scheme of the above technical problems as follows: a kind of compressor crosshead prevent oil device, including the two inner bracing frames of fixed connection in the inner cavity of compressor body shell: the inner wall of the inner bracing frame is provided with annular groove, the inner cavity of the annular groove is fixedly connected with fixed cover, the inner cavity of the fixed cover is clamped with oil seal sleeve, the right side of the compressor body shell is fixedly connected with compressor shell, the inner cavity of the compressor shell is provided with crosshead, the inner cavity of the oil seal sleeve is provided with sealing assembly, the sealing assembly includes the arc rubber sleeve of fixed connection in the right side of oil seal sleeve inner wall, the inner cavity of the oil seal sleeve is fixedly connected with multiple wedge-shaped rubber sleeves, the both sides of the surface of the oil seal sleeve are provided with positioning arc groove, the surface of the oil seal sleeve is provided with two springs, the spring is clamped in the inner cavity of positioning arc groove, the inner cavity of the compressor body shell is provided with piston rod.

[0006] Preferably, the piston rod is slidably connected in the inner cavity of the two inner bracing frames, the surface of the piston rod is tightly combined with the surface of the arc rubber sleeve and wedge-shaped rubber sleeve.

[0007] Preferably, the cross head is slidably connected in the inner cavity of the compressor housing, and the right end of the piston rod is rotatably connected with the cross head.

[0008] Preferably, a keel is embedded in the inner part of the oil seal sleeve.

[0009] Preferably, the right side of the fixed cover is covered with a sealing cover plate, a plurality of screws are annularly distributed on the right side of the sealing cover plate, and the left ends of the screws penetrate into the left side of the sealing cover plate and are threadedly connected with the fixed cover.

[0010] The utility model discloses the beneficial effects are:

[0011] 1, the utility model discloses the cooperation of fixed cover, sealing cover plate and screw is used, and the oil seal sleeve is stably fixed in the inner cavity of the inner support frame, and the surface of the piston rod is wrapped and oil stain is blocked through the cooperation of the oil seal sleeve and the sealing assembly, can reach the purpose that the wrapping sealing property is strong and oil stain is effectively prevented from entering the air pressure cavity.

[0012] 2, the utility model discloses the setting of keel plays the support and plasticity to the oil seal sleeve, thereby improve the overall structural stability of oil seal sleeve, improve the wrapping effect of oil seal sleeve to the surface of piston rod.

[0013] 3, the utility model discloses the cooperation of sealing cover plate and screw plays the limiting blocking effect to the oil seal sleeve, makes the oil seal sleeve can be stably installed in the inner cavity of the inner support frame, thereby improve the stability of oil seal sleeve in the sliding process of piston rod. DRAWINGS

[0014] Among them:

[0015] Figure 1 It is the front view cross section schematic diagram of one embodiment of the utility model;

[0016] Figure 2 It is one embodiment of the utility model Figure 2 The local enlarged view of point A;

[0017] Figure 3 It is the three-dimensional schematic diagram of fixed cover and sealing assembly of one embodiment of the utility model;

[0018] Figure 4 It is the three-dimensional explosion drawing of fixed cover, oil seal sleeve and sealing assembly of one embodiment of the utility model.

[0019] In the drawings, the component list represented by each sign is as follows:

[0020] 1, compressor middle body shell, 2, inner support frame, 3, annular groove, 4, fixed cover, 5, oil seal sleeve, 6, compressor shell, 7, cross head, 8, sealing assembly, 81, arc rubber sleeve, 82, wedge rubber sleeve, 83, positioning arc groove, 84, spring, 9, piston rod, 10, keel, 11, sealing cover plate, 12, screw. DETAILED DESCRIPTION

[0021] Hereinafter, an embodiment of the compressor cross head oil-proof device of the utility model will be described with reference to the drawings.

[0022] Figures 1-4 The compressor cross head oil-proof device of one embodiment of the utility model is shown, comprising two inner support frames 2 fixedly connected in the inner cavity of the compressor middle body shell 1: the inner wall of the inner support frame 2 is provided with an annular groove 3, the inner cavity of the annular groove 3 is fixedly connected with a fixed cover 4, the right side of the fixed cover 4 is covered with a sealing cover plate 11, a plurality of screws 12 are annularly distributed on the right side of the sealing cover plate 11, the left end of the screw 12 penetrates to the left side of the sealing cover plate 11 and is threadedly connected with the fixed cover 4, through the cooperation of the sealing cover plate 11 and the screw 12, a limiting and blocking effect is achieved on the oil seal sleeve 5, so that the oil seal sleeve 5 can be stably installed in the inner cavity of the inner support frame 2, thereby improving the stability of the oil seal sleeve 5 during the sliding process of the piston rod 9, the inner cavity of the fixed cover 4 is clamped with the oil seal sleeve 5, the inside of the oil seal sleeve 5 is embedded with a keel 10, through the setting of the keel 10, a supporting and plasticizing effect is achieved on the oil seal sleeve 5, thereby improving the overall structural stability of the oil seal sleeve 5, improving the wrapping effect of the oil seal sleeve 5 on the surface of the piston rod 9, the right side of the compressor middle body shell 1 is fixedly connected with a compressor shell 6, the inner cavity of the compressor shell 6 is provided with a cross head 7, the cross head 7 is slidingly connected in the inner cavity of the compressor shell 6, the right end of the piston rod 9 is rotationally connected with the cross head 7, the inner cavity of the oil seal sleeve 5 is provided with a sealing assembly 8, the sealing assembly 8 comprises an arc rubber sleeve 81 fixedly connected to the right side of the inner wall of the oil seal sleeve 5, a plurality of wedge rubber sleeves 82 are fixedly connected in the inner cavity of the oil seal sleeve 5, positioning arc grooves 83 are formed on both sides of the surface of the oil seal sleeve 5, two springs 84 are sleeved on the surface of the oil seal sleeve 5, the spring 84 is clamped in the inner cavity of the positioning arc groove 83, the inner cavity of the compressor middle body shell 1 is provided with a piston rod 9, the piston rod 9 is slidingly connected in the inner cavities of the two inner support frames 2, the surface of the piston rod 9 is tightly combined with the surfaces of the arc rubber sleeve 81 and the wedge rubber sleeve 82.

[0023] Working principle: the utility model for use, the user through the embedding of oil seal cover 5 in the inner chamber of fixed cover 4, make the oil seal cover 5 set in the surface of piston rod 9, then the user will sealing cover plate 11 clamping in the right side of keel 10, and the screw 12 is from the right side of sealing cover plate 11 to the left side into, make the screw 12 and fixed cover 4 keep screw connection, and then to sealing cover plate 11 and oil seal cover 5 are pressed and fixed, then the user stretches spring 84, spring 84 set in the surface of oil seal cover 5, make spring 84 clamping in the inner chamber of positioning arc groove 83, the surface of oil seal cover 5 is fixed tightly, in the process of using, crosshead 7 reciprocating sliding in the inner chamber of compressor housing 6, and drive piston rod 9 reciprocating motion in the inner chamber of inner support frame 2, in the process of piston rod 9 left and right sliding its surface lubricating oil oil stain is blocked by arc rubber sleeve 81 and multiple wedge rubber sleeve 82, effectively prevent oil stain into the inner chamber of compressor middle shell 1, simultaneously under the tightening clamping of spring 84, the inner wall of arc rubber sleeve 81 and wedge rubber sleeve 82 tightly adhere to the surface of piston rod 9, ensure that arc rubber sleeve 81 and wedge rubber sleeve 82 to the surface of piston rod 9 oil stain played effective blocking effect.

[0024] In conclusion: the compressor crosshead prevents oil device, through the cooperation of fixed cover 4, sealing cover plate 11 and screw 12, oil seal cover 5 is stably fixed in the inner chamber of inner support frame 2, simultaneously through the cooperation of oil seal cover 5 and sealing assembly 8, the surface of piston rod 9 is wrapped, the oil stain is blocked, can reach the purpose of strong wrapping sealing property and effectively prevent oil stain into air pressure cavity.

Claims

1. A compressor crosshead anti-oiling device, characterized by, The utility model provides a compressor, including two inner braces (2) fixedly connected with the inner chamber of body shell (1) in the compressor, the inner wall of inner brace (2) is provided with annular recess (3), the inner chamber of annular recess (3) is fixedly connected with fixed cover (4), oil seal sleeve (5) is clamped in the inner chamber of fixed cover (4), the right side of compressor body shell (1) is fixedly connected with compressor shell (6), the inner chamber of compressor shell (6) is provided with cross head (7), the inner chamber of oil seal sleeve (5) is provided with sealing assembly (8), sealing assembly (8) includes the arc rubber sleeve (81) of fixed connection in the inner wall right side of oil seal sleeve (5), the inner chamber of oil seal sleeve (5) is fixedly connected with multiple wedge rubber sleeve (82), both sides of the surface of oil seal sleeve (5) are provided with positioning arc groove (83), the surface of oil seal sleeve (5) is provided with two springs (84), spring (84) is clamped in the inner chamber of positioning arc groove (83), the inner chamber of compressor body shell (1) is provided with piston rod (9).

2. A compressor crosshead anti-oiling device according to claim 1, characterized in that, The piston rod (9) is slidably connected in the inner chamber of two inner braces (2), the surface of piston rod (9) is closely attached to the surface of arc rubber sleeve (81) and wedge rubber sleeve (82).

3. A compressor crosshead anti-oiling device according to claim 2, wherein, The cross head (7) is slidably connected in the inner chamber of compressor shell (6), the right end of piston rod (9) is rotatably connected with cross head (7).

4. A compressor crosshead anti-oiling device according to claim 3, wherein, The inside of oil seal sleeve (5) is embedded with keel (10).

5. A compressor crosshead anti-oiling device according to claim 4, wherein, The right side of fixed cover (4) is covered with sealing cover plate (11), a plurality of screws (12) are annularly distributed on the right side of sealing cover plate (11), the left end of screw (12) penetrates to the left side of sealing cover plate (11) and is screw-connected with fixed cover (4).

Images