Lossless dismantling device for lower copper bush of movable cone of multi-cylinder hydraulic cone crusher

Abstract

The utility model relates to a lossless dismantling device for a lower copper bush of a movable cone of a multi-cylinder hydraulic cone crusher, which aims to solve the technical problem that the lower copper bush of the movable cone of the crusher is damaged when being dismantled, and adopts the technical scheme that the lossless dismantling device comprises a wooden frame, a supporting plate, a pull rod, an adjusting nut, a tension nut and a tension plate, the two ends of the tension plate in the length direction make contact with the two sides of the movable cone lower copper sleeve in the width direction, the wooden frames are symmetrically placed on the two sides of the top face of the movable cone body, the supporting plates are erected on the wooden frames, the lower ends of the pull rods are in threaded connection with the tension nuts, and the upper ends of the pull rods penetrate through the middles of the supporting plates. And the adjusting nut is sleeved on a pull rod above the supporting plate. The movable cone lower copper bush is pulled out of the mounting hole through the pull rod and the tension plate, dry ice is injected into the cavity of the movable cone lower copper bush, interference fit between the movable cone lower copper bush and the movable cone body is eliminated according to the principle of thermal expansion and cold contraction, and the movable cone lower copper bush is dismounted in a lossless mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of crusher maintenance equipment, and in particular relates to a non-destructive removal device for a copper sleeve under a moving cone of a multi-cylinder hydraulic cone crusher. Background Art

[0002] The multi-cylinder hydraulic cone crusher is a device for crushing ore. The device uses a motor as the power source. The motor drives the eccentric sleeve to rotate through a pulley, a V-belt, a horizontal shaft, a small gear and a large gear. The movable cone rotates and swings under the force of the eccentric sleeve, so that the surface of the movable cone lining is sometimes close to and sometimes away from the surface of the fixed cone lining. The material is constantly impacted, squeezed and bent in the annular crushing chamber composed of the fixed cone and the movable cone, and is crushed. After multiple extrusions, impacts and bends, the material is crushed to the required particle size and discharged from the lower part of the crusher. When the multi-cylinder hydraulic cone crusher encounters unbreakable foreign matter passing through the crushing chamber, the release cylinder system realizes the insurance function, automatically enlarges the discharge port, and discharges the foreign matter from the crushing chamber.

[0003] When the multi-cylinder hydraulic cone crusher is idling, the movable cone is prone to swing due to its own heavy weight. The copper sleeve on the movable cone will collide with the spherical tile frame. Idling for too long will damage the copper sleeve on the movable cone. When the copper sleeve on the movable cone is damaged and replaced, the outer diameter of the upper copper sleeve and the lower copper sleeve of the movable cone are the same. To remove the upper copper sleeve of the movable cone, the lower copper sleeve of the movable cone must be removed first. However, the lower copper sleeve of the movable cone is an interference fit with the movable cone, and the assembly dimensions of the lower copper sleeve require high precision. Destructive removal or hard extraction will cause damage to the lower copper sleeve, resulting in waste of spare parts. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a non-destructive removal device for the copper sleeve under the movable cone of a multi-cylinder hydraulic cone crusher.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A non-destructive removal device for the copper sleeve under the moving cone of a multi-cylinder hydraulic cone crusher, comprising a plurality of wooden frames, a support plate, a pull rod, an adjusting nut, a tension nut and a tension plate, wherein the tension nut is fixedly arranged in the middle of the top surface of the tension plate, the cross-sectional lengths of the tension plate and the copper sleeve under the moving cone are perpendicular to each other, and the two ends of the tension plate in the length direction are in contact with the two sides of the copper sleeve under the moving cone in the width direction, the plurality of wooden frames are symmetrically placed on both sides of the top surface of the moving cone, the support plate is erected on the wooden frames, the lower end of the pull rod is connected to the tension nut by a thread, the upper end of the pull rod passes through the middle of the support plate, and the adjusting nut is threadedly sleeved on the pull rod above the support plate.

[0007] Furthermore, the width w1 of the tension plate is smaller than the inner width w2 of the copper sleeve under the moving cone.

[0008] Furthermore, the length L1 of the tension plate is equal to the outer width w3 of the copper sleeve under the moving cone.

[0009] Furthermore, the height of the wooden frame is greater than the matching height of the copper sleeve under the moving cone and the moving cone.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model pulls out the copper sleeve under the moving cone from the installation hole through the pull rod and the tension plate, and injects dry ice into the cavity of the copper sleeve under the moving cone. The principle of thermal expansion and contraction is adopted to eliminate the interference fit between the copper sleeve under the moving cone and the moving cone, so as to realize non-destructive removal of the copper sleeve under the moving cone and avoid the waste of spare parts caused by removal.

[0012] 2. The utility model pulls out the copper sleeve under the moving cone by the cooperation of the pull rod, the adjusting nut and the tension plate, without dismantling the equipment, thus avoiding damage to the copper sleeve under the moving cone;

[0013] 3. The utility model has a simple structure, is easy to operate, has a low cost and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a schematic diagram of the top view of the structure of the tension plate of the utility model when it is installed;

[0016] Figure 3 This is a side view structural diagram of the utility model after the tension plate is installed;

[0017] Figure 4 It is a structural schematic diagram of an annular tension plate and a tension nut;

[0018] In the figure: 1. moving cone; 2. wooden frame; 3. support plate; 4. pull rod; 5. adjusting nut; 6. copper sleeve under the moving cone; 7. tension nut; 8. tension plate. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Example 1

[0021] like Figure 1-4As shown, a non-destructive removal device for the copper sleeve under the moving cone of a multi-cylinder hydraulic cone crusher comprises a plurality of wooden frames 2, a support plate 3, a pull rod 4, an adjusting nut 5, a tension nut 7 and a tension plate 8, wherein the tension nut 7 is fixedly arranged in the middle of the top surface of the tension plate 8, the cross-sectional lengths of the tension plate 8 and the copper sleeve 6 under the moving cone are perpendicular to each other, the width w1 of the tension plate 8 is smaller than the inner width w2 of the copper sleeve 6 under the moving cone, and the length L1 of the tension plate 8 is equal to the outer width w3 of the copper sleeve 6 under the moving cone, the plurality of wooden frames 2 are symmetrically placed on both sides of the top surface of the moving cone 1, and the height of the wooden frames 2 is greater than the matching height of the copper sleeve 6 under the moving cone and the moving cone 1, the support plate 3 is erected on the wooden frames 2, the lower end of the pull rod 4 is threadedly connected to the tension nut 7, the upper end of the pull rod 4 passes through the middle of the support plate 3, and the adjusting nut 5 is threadedly sleeved on the pull rod 4 above the support plate 3.

[0022] The working process of this utility model:

[0023] When the utility model is used, the lower end of the pull rod 4 is threadedly connected with the tension nut 7, and the upper end of the pull rod 4 is held by hand, and the tension plate 8 is extended into the copper sleeve 6 under the moving cone along the length direction. When it is extended to the bottom, the tension plate 8 is installed 90 degrees, so that the two ends of the tension plate 8 are clamped on the bottom surfaces of the two sides of the copper sleeve 6 under the moving cone;

[0024] Pour dry ice into the copper sleeve 6 under the moving cone, place wooden frames 2 on both sides of the top surface of the moving cone 1, and put the two ends of the support plate 3 on the wooden frames 2. The upper end of the pull rod 4 passes through the through hole in the middle of the support plate 3, and the adjusting nut 5 is set on the pull rod 4 through a threaded connection. After the dry ice is cooled in the copper sleeve 6 under the moving cone for 10 minutes, the adjusting nut 5 is rotated with a wrench to make the pull rod 4 rise, and the tension plate 8 is driven to rise through the tension nut 7, and the copper sleeve 6 under the moving cone is driven to be slowly lifted upward. Due to the cooling effect of the dry ice, the copper sleeve 6 under the moving cone shrinks, eliminating the interference fit between it and the moving cone, reducing the friction between the copper sleeve 6 under the moving cone and the moving cone 1, making it easier to remove the copper sleeve 6 under the moving cone. When the rising height of the pull rod 4 is greater than the interference fit depth between the copper sleeve 6 under the moving cone and the moving cone 1, the copper sleeve 6 under the moving cone is pulled out;

[0025] Unscrew the adjusting nut 5, remove the supporting plate 3, remove the wooden frame 2, unscrew the pull rod 4, take out the dry ice in the copper sleeve 6 under the moving cone, which can be used for the installation of the upper / lower copper sleeves of the moving cone to prevent the waste of dry ice. Rotate the tension plate 8 90° through the pull rod 4 and take it out, then remove the copper sleeve 6 under the moving cone to complete the operation.

Claims

1. A non-destructive removal device for the copper sleeve under the moving cone of a multi-cylinder hydraulic cone crusher, characterized in that: It comprises a plurality of wooden frames (2), a support plate (3), a pull rod (4), an adjusting nut (5), a tension nut (7) and a tension plate (8), wherein the tension nut (7) is fixedly arranged in the middle of the top surface of the tension plate (8), the cross-sectional lengths of the tension plate (8) and the copper sleeve (6) under the moving cone are perpendicular to each other, and the two ends of the tension plate (8) in the length direction are in contact with the two sides of the copper sleeve (6) under the moving cone in the width direction, the plurality of wooden frames (2) are symmetrically placed on both sides of the top surface of the moving cone (1), the support plate (3) is mounted on the wooden frames (2), the lower end of the pull rod (4) is connected to the tension nut (7) by threading, the upper end of the pull rod (4) passes through the middle of the support plate (3), and the adjusting nut (5) is threadedly sleeved on the pull rod (4) above the support plate (3).

2. The non-destructive removal device for the copper sleeve under the moving cone of a multi-cylinder hydraulic cone crusher according to claim 1 is characterized in that: The width w1 of the tension plate (8) is smaller than the inner width w2 of the lower copper sleeve (6) of the moving cone.

3. The non-destructive removal device for the copper sleeve under the movable cone of a multi-cylinder hydraulic cone crusher according to claim 2 is characterized in that: The length L1 of the tension plate (8) is equal to the outer width w3 of the copper sleeve (6) below the moving cone.

4. The non-destructive removal device for the copper sleeve under the moving cone of a multi-cylinder hydraulic cone crusher according to claim 3 is characterized in that: The height of the wooden frame (2) is greater than the matching height of the copper sleeve (6) under the moving cone and the moving cone body (1).

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