CN214514969U

CN214514969U - Fixing device for rotor bearing of hammer crusher

Info

Publication number: CN214514969U
Application number: CN202021072818.1U
Authority: CN
Inventors: 房士奎; 李方
Original assignee: Shandong Jinbaoshan Mining Machinery Co ltd
Current assignee: Shandong Jinbaoshan Mining Machinery Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-10-29
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a fixing device of a rotor bearing of a hammer crusher, which comprises a first fastening device, a second fastening device and a third fastening device, wherein the third fastening device is arranged on the ground, the first fastening device is arranged on one side of the third fastening device, the second fastening device is arranged on the other side of the third fastening device, the second fastening device is arranged below the first fastening device, the third fastening device comprises a main shaft, the end part of the main shaft is provided with a main belt wheel, the connection mode of an expansion sleeve and the main shaft is adopted by changing the matching mode of an inner spacer sleeve, an outer spacer sleeve and a labyrinth, the serial position of the self-aligning roller bearing on the main shaft is greatly reduced, the service life of the self-aligning roller bearing is prolonged, the maintenance times are reduced, the service life of the rotor is prolonged, in addition, the mode of successive disassembly from outside to inside is adopted, the self-aligning roller bearing is easily and quickly disassembled, the production efficiency is greatly improved, and a good foundation is laid for energy conservation and consumption reduction.

Description

Fixing device for rotor bearing of hammer crusher

Technical Field

The utility model belongs to the technical field of hammer crusher rotor, concretely relates to hammer crusher rotor bearing's fixing device.

Background

The positioning of rotor bearings in the current market generally takes two forms: firstly, the self-aligning roller bearing is assembled on a main shaft shoulder through interference fit, then the bearing seat and the bearing cover are positioned with the self-aligning roller bearing, and then the inner end cover and the outer end cover are fixed on the bearing seat and the bearing cover through bolt connection. This positioning method has the following disadvantages: the self-aligning roller bearing is positioned by the shaft shoulder in the running process of the rotor, although the self-aligning roller bearing is easy to disassemble, the self-aligning roller bearing is easy to move backwards, the self-aligning roller bearing is seriously abraded, the service life of the self-aligning roller bearing is greatly reduced, and the maintenance frequency is increased. In addition, the inner end cover and the outer end cover are connected through the bolts, so that the inner end cover and the outer end cover are easy to fall off and loosen after a long time, and the self-aligning roller bearing is moved. Second, replace the skeleton seal circle through inside and outside maze, sealed effect is poor, and the labyrinth lid is dismantling the in-process, because interior labyrinth lid card is in the bearing frame, and the uneven damage that arouses of very easy atress, in addition, the space between maze and the self-aligning roller bearing is little and do not fix a position, and rotor running time has been long, can lead to the maze to warp, and it is very difficult to dismantle. Therefore, the rotor bearing positioning device which is simple in positioning and convenient to disassemble is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hammer crusher rotor bearing's fixing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the fixing device of the rotor bearing of the hammer crusher comprises a first fastening device, a second fastening device and a third fastening device, wherein the third fastening device is arranged on the ground, the first fastening device is arranged on one side of the third fastening device, the second fastening device is arranged on the other side of the third fastening device, and the second fastening device is arranged below the first fastening device.

Preferably, the third fastening device comprises a main shaft, a main belt wheel is arranged at the end of the main shaft, a tensioning sleeve is arranged in the main belt wheel, an outer spacer sleeve is arranged on the surface of the main shaft, and the outer spacer sleeve is fixedly connected with the main belt wheel.

Preferably, the second fastening device comprises a self-aligning roller bearing, the self-aligning roller bearing is arranged below the main shaft, an outer labyrinth is arranged on one side of the self-aligning roller bearing, the outer labyrinth is connected with the inner partition sleeve in a clamping mode, the outer labyrinth is fixedly connected with the main shaft, and an inner labyrinth is arranged in the outer labyrinth.

Preferably, the bottom of aligning roller bearing is provided with the bearing frame, interior maze and bearing frame joint, aligning roller bearing's opposite side is provided with the second outer end cover, second outer end cover and bearing frame joint, be provided with outer skeleton sealing washer on the second outer end cover, outer skeleton sealing washer and outer spacer fixed connection.

Preferably, the first fastening device includes a bearing upper cover, the bearing upper cover is disposed on a surface of the main shaft, a first outer end cover is disposed on the surface of the bearing upper cover, a bolt is disposed between the first outer end cover and the bearing upper cover, and both the first outer end cover and the bearing upper cover are in threaded connection with the bolt.

Compared with the prior art, the beneficial effects of the utility model are that: through changing the cooperation mode of inside and outside spacer and maze, adopt the connected mode of tight cover and main shaft that rises, greatly reduced self-aligning roller bearing at the epaxial cluster position of main shaft, increased self-aligning roller bearing's life-span, reduced the maintenance number of times, improved the life of rotor, take outside-in addition to dismantle the mode one by one, pull down self-aligning roller bearing fast very easily, improved production efficiency greatly, laid good basis for energy saving and consumption reduction.

Drawings

Fig. 1 is a front view of a rotor mechanism of the present invention;

FIG. 2 is a detail view of the bearing attachment;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a side view of the rotor;

in the figure: 1. a first fastening device; 101. a bolt; 102. a first outer end cap; 103. an upper bearing cover; 2. a second fastening device; 201. an inner spacer sleeve; 202. an outer labyrinth; 203. an inner labyrinth; 204. a bearing seat; 205. a self-aligning roller bearing; 206. a second outer end cap; 207. an outer skeleton seal ring; 3. a third fastening means; 301. a main belt wheel; 302. a tensioning sleeve; 303. an outer spacer sleeve; 304. a main shaft.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a fixing device for a rotor bearing of a hammer crusher comprises a first fastening device 1, a second fastening device 2 and a third fastening device 3, wherein the third fastening device 3 is arranged on the ground, the first fastening device 1 is arranged on one side of the third fastening device 3, the second fastening device 2 is arranged on the other side of the third fastening device 3, and the second fastening device 2 is arranged below the first fastening device 1.

In order to use the connection between the tension sleeve 302 and the main shaft 304 and the main belt pulley 301, the disassembly is convenient and fast, the transmission torque is stable, and the device can be protected from being damaged when the device is overloaded, in this embodiment, preferably, the third fastening device 3 includes the main shaft 304, the main belt pulley 301 is arranged at the end of the main shaft 304, the tension sleeve 302 is arranged in the main belt pulley 301, the outer spacer 303 is arranged on the surface of the main shaft 304, and the outer spacer 303 is fixedly connected with the main belt pulley 301.

In order to realize the accurate positioning of the self-aligning roller bearing 205 through the inner spacer 201 and the outer spacer 303, the spacer is low in cost, the front end of the inner spacer 201 is connected with a convex shoulder of the main shaft 304, the rear end of the inner spacer is connected with the outer labyrinth 202, a good bridge lapping effect is achieved, the inner labyrinth 203 and the outer labyrinth 202 are placed at the front end of the main shaft 304, the outer skeleton sealing ring 207 is placed at the rear end of the main shaft 304, the dismounting is very convenient according to the sequence from easy to difficult, only the main machine belt wheel 301 needs to be dismounted when the bearing is replaced, the outer spacer 303 and the outer skeleton sealing ring 207 need to be taken out, and the maintenance is convenient. In this embodiment, preferably, the second fastening device 2 includes a self-aligning roller bearing 205, the self-aligning roller bearing 205 is disposed below the main shaft 304, an outer labyrinth 202 is disposed on one side of the self-aligning roller bearing 205, the outer labyrinth 202 is clamped with the inner spacer 201, the outer labyrinth 202 is fixedly connected with the main shaft 304, and the inner labyrinth 203 is disposed in the outer labyrinth 202.

In order to accurately position the self-aligning roller bearing 205 by the inner labyrinth 203 and the outer labyrinth 202, since the bearing adjusting seat 204 and the bearing upper cover 103 are both provided with inner grooves, the inner grooves are tightly matched with bosses of the inner labyrinth 203, and the front positioning of the self-aligning roller bearing 205 is ensured; meanwhile, the outer spacer 303 is tightly attached to the end face of the self-aligning roller bearing 205, the end face of the main belt wheel 301 is attached to the end face of the outer spacer 303, and rear positioning of the self-aligning roller bearing 205 is ensured, so that the self-aligning roller bearing 205 does not move back and forth in the axial direction.

For further fixing the rotor bearing, in the present embodiment, it is preferable that the first fastening device 1 includes a bearing upper cover 103, the bearing upper cover 103 is disposed on the surface of the main shaft 304, the surface of the bearing upper cover 103 is provided with a first outer end cover 102, a bolt 101 is disposed between the first outer end cover 102 and the bearing upper cover 103, and both the first outer end cover 102 and the bearing upper cover 103 are in threaded connection with the bolt 101.

The utility model discloses a theory of operation and use flow: after the utility model is installed, firstly, the installation and the safety protection of the utility model are checked, then the utility model can be used, when in use, the inner spacer 201 is arranged on the main shaft 304 in a penetrating way, at this time, the outer labyrinth 202 is close to the end surface of the inner spacer 201, then the inner labyrinth 203 is assembled with the outer labyrinth 202, the self-aligning roller bearing 205 is arranged close to the shaft shoulder of the main shaft 304 and is tightly attached to the end surface of the inner labyrinth 203, then the bearing seat 204 is placed and positioned, the boss of the inner labyrinth 203 is ensured to be clamped in the bearing seat 204, so that the inner labyrinth 203 can not move left and right, then the bearing upper cover 103 is buckled on the bearing seat 204, thus the positioning of the self-aligning roller bearing 205, the outer labyrinth 202, the inner labyrinth 203 and the inner spacer 201 in front of the bearing seat 204 is ensured, the outer spacer 303 is sleeved on the main shaft 304, then the first outer end cover 102 and the outer skeleton sealing ring 207 are passed through the outer spacer 303 and accurately positioned at the clamping position of the bearing seat 204, the second outer end cover 206 is sequentially and uniformly fastened by bolts 101, the main machine belt wheel 301 is matched with the inner hole of the main shaft 304 and the end surface of the outer spacer sleeve 303, and then the tensioning sleeve 302 is fixed with the main shaft 304 and the main machine belt wheel 301.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fixing device of a rotor bearing of a hammer crusher comprises a first fastening device (1), a second fastening device (2) and a third fastening device (3), and is characterized in that: the third fastening device (3) is arranged on the ground, the first fastening device (1) is arranged on one side of the third fastening device (3), the second fastening device (2) is arranged on the other side of the third fastening device (3), and the second fastening device (2) is arranged below the first fastening device (1).

2. A hammer crusher rotor bearing fixing device according to claim 1, characterized in that: the third fastening device (3) comprises a main shaft (304), a main belt wheel (301) is arranged at the end part of the main shaft (304), a tensioning sleeve (302) is arranged in the main belt wheel (301), an outer spacer bush (303) is arranged on the surface of the main shaft (304), and the outer spacer bush (303) is fixedly connected with the main belt wheel (301).

3. A hammer crusher rotor bearing fixing device according to claim 2, characterized in that: second fastener (2) are including self-aligning roller bearing (205), self-aligning roller bearing (205) set up the below at main shaft (304), one side of self-aligning roller bearing (205) is provided with outer maze (202), outer maze (202) and interior spacer (201) joint, outer maze (202) and main shaft (304) fixed connection, be provided with interior maze (203) in outer maze (202).

4. A hammer crusher rotor bearing fixing device according to claim 3, characterized in that: the bottom of self-aligning roller bearing (205) is provided with bearing frame (204), interior labyrinth (203) and bearing frame (204) joint, the opposite side of self-aligning roller bearing (205) is provided with second outer end cover (206), second outer end cover (206) and bearing frame (204) joint, be provided with outer skeleton sealing washer (207) on second outer end cover (206), outer skeleton sealing washer (207) and outer spacer (303) fixed connection.

5. A hammer crusher rotor bearing fixing device according to claim 1, characterized in that: the first fastening device (1) comprises an upper bearing cover (103), the upper bearing cover (103) is arranged on the surface of a main shaft (304), a first outer end cover (102) is arranged on the surface of the upper bearing cover (103), a bolt (101) is arranged between the first outer end cover (102) and the upper bearing cover (103), and the first outer end cover (102) and the upper bearing cover (103) are both in threaded connection with the bolt (101).