CN215429226U

CN215429226U - Multi-cylinder cone crusher main shaft

Info

Publication number: CN215429226U
Application number: CN202120845097.1U
Authority: CN
Inventors: 雷华良; 何志敏
Original assignee: Nanchang Mineral Systems Co Ltd
Current assignee: Nanchang Mineral Systems Group Co Ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-01-07
Anticipated expiration: 2031-04-23

Abstract

The utility model discloses a main shaft of a multi-cylinder cone crusher, wherein an oil duct is arranged inside the main shaft, an upper conical surface is arranged at the upper part of the main shaft, a lower conical surface is arranged at the lower part of the main shaft, a plurality of positioning holes and mounting holes are uniformly distributed on the upper end surface, a plurality of threaded holes are arranged on the lower end surface, and a small oil duct is arranged inside the lower end of the main shaft to communicate the lower end surface of the main shaft with the lower conical surface. The main shaft is used for a multi-cylinder cone crusher, and a rotating part rotates around the main shaft to realize crushing operation during crushing operation. The main shaft has the advantages of simple structure, low requirement on manufacturing process and convenient use. The utility model can facilitate the positioning, mounting and dismounting of the spherical tile frame, and when in use, lubricating oil can be distributed to each kinematic pair inside the crusher through the oil duct to lubricate and dissipate the heat of the kinematic pairs inside the crusher.

Description

Multi-cylinder cone crusher main shaft

Technical Field

The utility model belongs to the field of mining equipment, and particularly relates to a main shaft of a multi-cylinder cone crusher.

Background

The crushing principle of the multi-cylinder hydraulic cone crusher is as follows: the working parts of the multi-cylinder hydraulic cone crusher consist of two truncated cones, namely a moving cone and a fixed cone. The during operation motor passes through belt pulley, transmission shaft, pinion, gear wheel and drives eccentric cover rotatory, and eccentric cover drive moves the awl and makes the pendulum motion soon along the internal surface, is close to the place of deciding the awl, and the material receives the extrusion and the bending of awl and is broken, and the place of deviating from the deciding the awl, broken material falls from the awl end owing to the action of gravity, and whole breakage is gone on in proper order with the process of unloading in succession along the internal surface. The release oil cylinder part consists of six release oil cylinders 3, three energy accumulators and connecting pipelines. The release oil cylinder mainly plays a role in iron passing protection and cavity cleaning and is used for absorbing and buffering the jumping impact phenomenon of the adjusting ring caused by a small number of hard materials during normal crushing.

The main shaft of the multi-cylinder hydraulic cone crusher is assembled and fixed on the frame, so that the main shaft and the frame are required to be matched with each other in a large interference range, and the stability of the main shaft during production and operation of the crusher can be ensured. Due to the large interference, the assembly of the main shaft and the frame of the multi-cylinder hydraulic cone crusher usually adopts a press-fitting process, namely the main shaft is pressed into a frame hole by an oil press. Or a cold-loading process is adopted, namely the main shaft is put into a liquid nitrogen refrigerator for freezing, and the main shaft is assembled in the hole of the frame after being cooled to a set temperature. And a cold and hot assembly process is also adopted, namely the spindle is frozen by using dry ice, but the dry ice is not enough to cool the spindle to an assembly size, so that the position of the mounting hole of the rack is heated, and the frozen spindle is assembled into the mounting hole of the rack after the spindle is heated to the required temperature. The upper end of the main shaft is provided with a spherical support group for supporting the whole movable cone assembly, and the main shaft and the spherical support group are in interference connection.

More kinematic pairs are arranged inside the crusher, and good lubrication and heat dissipation are required to be guaranteed.

At present, the upper end of a multi-cylinder cone main shaft of the multi-cylinder cone crusher is of a vertical structure, a conical surface is not arranged, a threaded hole is not arranged on the lower end surface of the main shaft, threads are arranged at an oil port opening, and the following defects exist: 1. a positioning pin is not arranged between the spherical tile rack and the main shaft, and the main shaft is not provided with a positioning conical surface, so that the installation and the disassembly of the spherical tile rack are not facilitated; 2. the lower end of the main shaft is poor in thread sealing, and damage and repair are difficult after threads are formed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a main shaft of a multi-cylinder cone crusher, which can ensure that a kinematic pair in the crusher can be well lubricated and radiated, and is convenient for dismounting the main shaft and matching installation between a spherical tile frame and the main shaft.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a multi-cylinder cone crusher main shaft, the inside of main shaft is equipped with the oil duct, and main shaft upper portion has the upper cone face, and the lower part is equipped with down the conical surface, and a plurality of locating holes of upper end equipartition and mounting hole, lower terminal surface are equipped with a plurality of screw holes, and terminal surface and lower cone intercommunication under the main shaft is equipped with little oil duct in main shaft lower extreme inside.

Further, the oil ducts comprise a transverse oil duct and a vertical oil duct, the transverse oil duct and the vertical oil duct are arranged in a crossed mode, the vertical oil duct is communicated with the upper end face and the lower end face of the main shaft from the center of the main shaft, and the oil ducts are transversely arranged between the upper conical surface and the lower conical surface and communicated with the outer wall of the main shaft. A plurality of threaded holes are uniformly distributed on the lower end face of the main shaft around the oil duct and are used for being connected with an oil inlet flange of the crusher, lubricating oil provided by the hydraulic station enters the oil duct of the main shaft through the oil inlet flange, the lubricating oil is distributed to each kinematic pair inside the crusher through the oil duct, and the internal kinematic pairs of the crusher are lubricated and cooled.

Furthermore, the small oil duct extends upwards from the lower end face of the main shaft to the middle part of the lower conical surface of the main shaft and then transversely extends to the outer surface of the main shaft, and internal threads are arranged in the small oil duct on the lower end face of the main shaft. When the main shaft needs to be replaced, the joint is installed on the inner thread, the external oil pump is connected, and the high-pressure oil is used for assisting in detaching the main shaft.

Further, the number of the threaded holes is 6 or 8, and the threaded holes are annularly provided with oil passages.

Further, the taper angle α of the upper tapered surface is 1 to 3 °, preferably 1.8 to 2.0 °, and preferably α is 1 ° 54' 34 ". The upper conical surface is used for being matched with a spherical tile rack of the crusher, so that the spherical tile rack can be conveniently mounted and dismounted. The upper end face of the main shaft is provided with a positioning hole and a mounting hole, the positioning hole is used for mounting a positioning pin, the spherical tile rack is convenient to position, and the mounting hole is used for connecting the spherical tile rack.

Further, the diameter of the oil passage is 80-120mm, preferably 100 mm.

Compared with the prior art, the utility model has the following beneficial effects: 1. the inside of main shaft is equipped with the oil duct, can make the lubricating oil that the hydraulic pressure station provided get into the main shaft oil duct through the oil feed flange, distributes lubricating oil to inside each motion pair of breaker through the oil duct, lubricates and dispels the heat to the inside motion pair of breaker. 2. The upper part of the main shaft is provided with an upper conical surface, so that the spherical tile rack can be conveniently mounted and dismounted. 3. A plurality of locating holes and mounting holes are evenly distributed on the upper end face, so that the spherical tile rack can be conveniently and accurately located when the spherical tile surface is mounted. 4. A plurality of threaded holes are uniformly distributed on the lower end face of the main shaft around the oil duct, the threaded holes are used for being connected with an oil inlet flange of the crusher, an oil pipe does not need to be directly connected to the oil duct, the sealing effect is good, and the replacement and repair are simple and convenient.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a perspective view of the present invention

FIG. 3 is a top view of the present invention;

FIG. 4 is a bottom view of the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 1;

FIG. 6 is a sectional view taken along line B-B of FIG. 1;

in the figure, the structure comprises an upper conical surface 1, an oil duct 2, a lower conical surface 3, a mounting hole 4, a positioning hole 5, a small oil duct 6, an internal thread 7 and a threaded hole 8.

Detailed Description

Referring to fig. 1-3, a main shaft of a multi-cylinder cone crusher is provided with an oil duct 2 inside, an upper conical surface 1 is arranged at the upper part of the main shaft, a lower conical surface 3 is arranged at the lower part of the main shaft, a plurality of positioning holes 5 and mounting holes 4 are uniformly distributed on the upper end surface, a plurality of threaded holes 8 are arranged on the lower end surface, and a small oil duct 6 is arranged inside the lower end of the main shaft to communicate the lower end surface of the main shaft with the lower conical surface 3.

The oil ducts 2 comprise transverse oil ducts 2 and vertical oil ducts 2, the transverse oil ducts 2 and the vertical oil ducts 2 are arranged in a crossed mode, the vertical oil ducts 2 are communicated with the upper end face and the lower end face of a main shaft from the center of the main shaft, the oil ducts 2 are transversely arranged between an upper conical surface 1 and a lower conical surface 3 and communicated with the outer wall of the main shaft, the diameter of each oil duct 2 is 80-120mm, the optimal diameter is 100mm, the number of threaded holes 8 is 6 or 8, and the threaded holes 8 are formed by surrounding the oil ducts 2. A plurality of threaded holes 8 are uniformly distributed on the lower end face of the main shaft around the oil duct 2, the threaded holes 8 are used for being connected with an oil inlet flange of the crusher, lubricating oil provided by the hydraulic station enters the main shaft oil duct 2 through the oil inlet flange, the lubricating oil is distributed to each kinematic pair in the crusher through the oil duct 2, and the internal kinematic pairs of the crusher are lubricated and cooled.

The small oil duct 6 extends upwards from the lower end face of the main shaft to the middle part of the lower conical surface 3 of the main shaft and then transversely extends to the outer surface of the main shaft, and internal threads 7 are arranged in the small oil duct 6 on the lower end face of the main shaft. When the main shaft needs to be replaced, the joint is arranged on the internal thread 7, the external oil pump is connected, and the high-pressure oil is used for assisting in disassembling the main shaft.

The taper angle α of the upper taper 1 is 1 to 3 °, preferably 1.8 to 2.0 °, and preferably α is 1 ° 54' 34 ″. The upper conical surface 1 is used for being matched with a spherical tile rack of the crusher, so that the spherical tile rack can be conveniently mounted and dismounted. The upper end face of the main shaft is provided with a positioning hole 5 and a mounting hole 4, the positioning hole 5 is used for mounting a positioning pin, the spherical tile frame is convenient to position, and the mounting hole 4 is used for connecting the spherical tile frame.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-cylinder cone crusher main shaft is characterized in that: the oil duct is arranged in the main shaft, the upper portion of the main shaft is provided with an upper conical surface, the lower portion of the main shaft is provided with a lower conical surface, the upper end face is evenly provided with a plurality of positioning holes and mounting holes, the lower end face is provided with a plurality of threaded holes, and the small oil duct is arranged in the lower end of the main shaft and used for communicating the lower end face of the main shaft with the lower conical surface.

2. A multi-cylinder cone crusher spindle according to claim 1, characterized in that: the oil duct comprises a transverse oil duct and a vertical oil duct, the transverse oil duct and the vertical oil duct are arranged in a crossed mode, the vertical oil duct is communicated with the upper end face and the lower end face of the main shaft from the center of the main shaft, and the oil duct is transversely arranged between the upper conical surface and the lower conical surface and communicated with the outer wall of the main shaft.

3. A multi-cylinder cone crusher spindle according to claim 1, characterized in that: the small oil duct extends upwards from the lower end face of the main shaft to the middle part of the lower conical surface of the main shaft and then transversely extends to the outer surface of the main shaft, and internal threads are arranged in the small oil duct on the lower end face of the main shaft.

4. A multi-cylinder cone crusher spindle according to claim 1, characterized in that: the screw hole is 6 or 8, and screw hole ring oil duct arranges.

5. A multi-cylinder cone crusher spindle according to claim 1, characterized in that: the taper angle alpha of the upper conical surface is 1-3 degrees.

6. A multi-cylinder cone crusher spindle according to claim 1 or 2, characterized in that: the diameter of the oil passage is 80-120 mm.