A hydraulic cylinder sleeve capable of increasing service life

Abstract

The utility model discloses a hydraulic cylinder sleeve that is convenient for improving service life, comprising a hydraulic cylinder, a hydraulic cylinder sleeve installed inside the hydraulic cylinder, an upper oil circuit oil drain hole opened on the left side of the inner wall of the hydraulic cylinder, an upper oil circuit opened on the right side of the inner wall of the hydraulic cylinder, an exhaust hole opened on the right side below the inner wall of the hydraulic cylinder, and a lower oil circuit channel opened on the left side below the inner wall of the hydraulic cylinder. The hydraulic cylinder sleeve that is convenient for improving service life is designed to be cast and formed by ductile iron. Ductile iron is carbon in the form of spherical graphite, which has excellent casting, cutting and wear resistance. The upper oil circuit oil drain hole on the upper part of the hydraulic cylinder sleeve and the lower oil circuit channel on the lower part of the hydraulic cylinder sleeve are designed, and the upper oil circuit is increased with an oil drain hole, so that the main shaft will not exceed the stroke during the rising and falling process; the purpose of self-lubrication of the hydraulic cylinder sleeve is achieved in structure, and the self-vibration effect is played, avoiding the occurrence of cylinder sticking phenomenon.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder sleeves, in particular to a hydraulic cylinder sleeve which is convenient for prolonging the service life. Background Art

[0002] Single-cylinder hydraulic cone crusher is an efficient and reliable crushing equipment, widely used in metallurgy, construction, highway, chemical industry, building materials and other industrial fields. Single-cylinder hydraulic cone crusher adopts hydraulic cylinder to meet its special working requirements and use conditions, to ensure the normal operation of the equipment and production safety; in actual application, it is necessary to reasonably select and use the hydraulic cylinder, and strengthen its maintenance and maintenance to ensure the performance and life of the equipment.

[0003] China Authorization Announcement No. CN208381292U discloses a novel wear-resistant hydraulic cylinder sleeve, comprising a hydraulic cylinder sleeve main body, an inlet is arranged at the top of the hydraulic cylinder sleeve main body, a ridge is arranged around the top of the inlet, an inner wall surface of the hydraulic cylinder sleeve main body is provided with an inner wall pattern, a first concave ring is arranged at the middle top of the hydraulic cylinder sleeve main body, a convex ring is arranged at the top of the first concave ring, a second concave ring is arranged at the bottom of the convex ring, and a fixing seat is arranged at the top inside the ridge; the setting of the first groove reduces the wear of the cylinder sleeve installation tool on the cylinder sleeve top, the installation tool can be put into the first groove and fixed by the engagement of the groove, which simplifies the installation steps and protects the top of the cylinder sleeve at the same time, reduces the wear of the inlet at the top of the cylinder sleeve, increases the service life of the cylinder sleeve, increases the work efficiency, reduces the damage to the cylinder sleeve surface, and increases the service life, which not only reduces the work difficulty but also reduces the economic loss.

[0004] In the existing single-cylinder hydraulic cone crusher, the hydraulic cylinder liner is made of steel. Although steel has high and uniform hardness and wear resistance, due to the high production cost and high requirements for heat treatment process of the steel liner, it cannot play the role of self-vibration when making the hydraulic cylinder liner of the single-cylinder cone crusher, so it is very easy to cause damage to the hydraulic cylinder liner. Especially for cone crushing with relatively large vibration destructiveness, the damage of the steel hydraulic cylinder liner is very high. For this reason, we propose a hydraulic cylinder liner that is easy to increase the service life. Utility Model Content

[0005] The utility model aims to provide a hydraulic cylinder sleeve which is convenient for improving the service life, so as to solve the problem that in the existing single-cylinder hydraulic cone crusher mentioned in the above background technology, the hydraulic cylinder sleeve is made of steel. Although the steel has high and uniform hardness and wear resistance, due to the high production cost of the steel sleeve and high requirements for the heat treatment process, the hydraulic cylinder sleeve of the single-cylinder cone crusher cannot play a self-vibration-absorbing role, which easily causes damage to the hydraulic cylinder sleeve, especially for cone crushing with relatively large vibration destructiveness, the damage of the steel hydraulic cylinder sleeve is very high.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic cylinder sleeve that is convenient for improving service life, comprising a hydraulic cylinder, a hydraulic cylinder sleeve installed inside the hydraulic cylinder, an upper oil circuit oil drain hole is opened on the left side of the inner wall of the hydraulic cylinder, an upper oil circuit is opened on the right side of the inner wall of the hydraulic cylinder, an exhaust hole is opened on the right side below the inner wall of the hydraulic cylinder, and a lower oil circuit channel is opened on the left side below the inner wall of the hydraulic cylinder.

[0007] Preferably, the hydraulic cylinder sleeve is cast by ductile iron.

[0008] Preferably, the upper oil circuit oil drain hole and the upper oil circuit are on the same horizontal line.

[0009] Preferably, the hydraulic cylinder is further provided with:

[0010] A water cavity is opened inside the inner wall of the hydraulic cylinder, a temperature sensor is installed inside the water cavity, Peltiers are installed on both sides of the water cavity, and a heat conduction block is installed on one side of the water cavity close to the hydraulic cylinder sleeve.

[0011] Preferably, the heat conductive block is fixedly connected to the hydraulic cylinder, and the hydraulic cylinder sleeve is tightly fitted to the heat conductive block.

[0012] Preferably, two Peltiers are provided, and the Peltiers penetrate the inner wall of the water cavity.

[0013] Compared with the prior art, the utility model provides a hydraulic cylinder sleeve which is convenient for prolonging the service life, and has the following beneficial effects: the hydraulic cylinder sleeve which is convenient for prolonging the service life is designed by casting ductile iron. Ductile iron is carbon in the form of spherical graphite, which has excellent casting, cutting and wear resistance. The upper oil circuit drain hole on the upper part of the hydraulic cylinder sleeve and the lower oil circuit channel on the lower part of the hydraulic cylinder sleeve are designed, and the upper oil circuit increases the oil drain hole, so that the main shaft will not exceed the stroke during the rising and falling process; the discharge port of the single-cylinder hydraulic crusher will not change due to air, which meets the requirements of industrial and mining use, and the structure realizes the purpose of self-lubrication of the hydraulic cylinder sleeve, and plays the role of self-vibration, thereby avoiding the occurrence of cylinder sticking phenomenon and ensuring the normal operation of the single-cylinder hydraulic cone crusher; and the processing cost is low and it is easy to replace. At the same time, the setting of the heat conduction block, the water chamber and the Peltier can make the hydraulic cylinder sleeve work within a certain temperature range, thereby prolonging the service life of the hydraulic cylinder sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0016] In the figure: 1. Hydraulic cylinder; 2. Upper oil circuit oil drain hole; 3. Temperature sensor; 4. Hydraulic cylinder sleeve; 5. Lower oil circuit channel; 6. Upper oil circuit; 7. Heat transfer block; 8. Water cavity; 9. Exhaust hole; 10. Peltier. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 , a hydraulic cylinder sleeve that is convenient for improving service life, comprising a hydraulic cylinder 1, wherein a hydraulic cylinder sleeve 4 is installed inside the hydraulic cylinder 1; the hydraulic cylinder sleeve 4 is cast and formed by ductile iron, an upper oil drain hole 2 is opened on the left side of the inner wall of the hydraulic cylinder 1, and an upper oil passage 6 is opened on the right side of the inner wall of the hydraulic cylinder 1; the upper oil drain hole 2 and the upper oil passage 6 are on the same horizontal line, an exhaust hole 9 is opened on the right side below the inner wall of the hydraulic cylinder 1, and a lower oil passage 5 is opened on the left side below the inner wall of the hydraulic cylinder 1; the hydraulic cylinder sleeve 4 is cast and formed by ductile iron, and ductile iron is carbon in the form of spherical graphite, which has excellent casting, cutting and wear resistance, the upper oil drain hole 2 on the upper part of the hydraulic cylinder sleeve 4, the lower oil passage 5 on the lower part of the hydraulic cylinder sleeve 4, the upper oil passage 6 adds an oil drain hole, and the spindle will not exceed the stroke during the rising and falling process; single-cylinder hydraulic crusher The crusher discharge port will not change due to air, which meets the requirements of industrial and mining use. The structure realizes the purpose of self-lubrication of the hydraulic cylinder sleeve 4, and plays the role of self-vibration, avoiding the occurrence of cylinder sticking phenomenon, and ensuring the normal operation of the single-cylinder hydraulic cone crusher; and the processing cost is low and easy to replace; the water chamber 8 is opened inside the inner wall of the hydraulic cylinder 1, and a temperature sensor 3 is installed inside the water chamber 8, and Peltiers 10 are installed on both sides of the water chamber 8; two Peltiers 10 are provided, and the Peltiers 10 pass through the inner wall of the water chamber 8, and a heat conducting block 7 is installed on the side of the water chamber 8 close to the hydraulic cylinder sleeve 4; the heat conducting block 7 is fixedly connected to the hydraulic cylinder 1, and the hydraulic cylinder sleeve 4 is tightly fitted with the heat conducting block 7; at the same time, the setting of the heat conducting block 7, the water chamber 8 and the Peltier 10 can make the hydraulic cylinder sleeve 4 work within a certain temperature range, thereby extending the service life of the hydraulic cylinder sleeve 4.

[0019] Working principle: When using the hydraulic cylinder sleeve that is easy to increase the service life, first of all, the hydraulic cylinder sleeve 4 is designed to be cast by ductile iron. Ductile iron is carbon in the form of spherical graphite. It has excellent casting, cutting and wear resistance, thereby increasing the service life of the hydraulic cylinder sleeve 4. The upper oil circuit drain hole 2 on the upper part of the hydraulic cylinder sleeve 4 and the lower oil circuit channel 5 on the lower part of the hydraulic cylinder sleeve 4 are designed. The upper oil circuit 6 adds an oil drain hole, and the main shaft will not exceed the stroke during the rising and falling process; the discharge port of the single-cylinder hydraulic crusher will not change due to air, which meets the requirements of industrial and mining use; the hydraulic cylinder sleeve 4 is self-lubricating in structure The purpose of sliding is to play the role of self-vibration, avoiding the occurrence of cylinder sticking. Then the temperature sensor 3 monitors the water temperature inside the water chamber 8 in real time, and controls the two Peltiers 10 to work through the controller. One of the two Peltiers 10 is responsible for heating and the other is responsible for cooling, heating or cooling the water inside the water chamber 8, so that the water inside the water chamber 8 is kept within a certain temperature range. Secondly, the hydraulic cylinder liner 4 exchanges heat with the water inside the monitoring water chamber 8 through the heat conduction block 7, thereby keeping the hydraulic cylinder liner 4 within a certain temperature range, which can extend the service life of the hydraulic cylinder liner 4. This is the working principle of the hydraulic cylinder liner that is easy to increase the service life.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder sleeve that is convenient for increasing service life, characterized in that: include: A hydraulic cylinder (1), wherein a hydraulic cylinder sleeve (4) is installed inside the hydraulic cylinder (1), an upper oil drain hole (2) is opened on the left side of the inner wall of the hydraulic cylinder (1), an upper oil circuit (6) is opened on the right side of the inner wall of the hydraulic cylinder (1), an exhaust hole (9) is opened on the right side below the inner wall of the hydraulic cylinder (1), and a lower oil circuit channel (5) is opened on the left side below the inner wall of the hydraulic cylinder (1).

2. A hydraulic cylinder sleeve for improving service life according to claim 1, characterized in that: The hydraulic cylinder sleeve (4) is cast by using ductile iron.

3. A hydraulic cylinder sleeve for improving service life according to claim 1, characterized in that: The upper oil circuit oil drain hole (2) and the upper oil circuit (6) are located on the same horizontal line.

4. A hydraulic cylinder sleeve for improving service life according to claim 1, characterized in that: The hydraulic cylinder (1) is also provided with: A water chamber (8) is provided inside the inner wall of the hydraulic cylinder (1), a temperature sensor (3) is installed inside the water chamber (8), Peltiers (10) are installed on both sides of the water chamber (8), and a heat conduction block (7) is installed on the side of the water chamber (8) close to the hydraulic cylinder sleeve (4).

5. A hydraulic cylinder sleeve for improving service life according to claim 4, characterized in that: The heat conducting block (7) is fixedly connected to the hydraulic cylinder (1), and the hydraulic cylinder sleeve (4) is tightly fitted to the heat conducting block (7).

6. A hydraulic cylinder sleeve for improving service life according to claim 4, characterized in that: Two Peltiers (10) are provided, and the Peltiers (10) penetrate the inner wall of the water chamber (8).

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