CN212120102U

CN212120102U - Labor-saving device of jaw crusher pull rod

Info

Publication number: CN212120102U
Application number: CN202020689410.2U
Authority: CN
Inventors: 丰作涛; 孙松强; 陈党伟
Original assignee: Henan Maike Road Heavy Industry Technology Co ltd
Current assignee: Henan Maike Road Heavy Industry Technology Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-11
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to a laborsaving device of jaw breaker pull rod, which comprises a sleeve, thrust ball bearing and main shaft section of thick bamboo, the sleeve, thrust ball bearing and main shaft section of thick bamboo all overlap and establish on the pull rod, the bearing groove has been seted up to telescopic one side, thrust ball bearing sets up in the bearing groove and is located between the cell wall of bearing groove and the outer tube wall of main shaft section of thick bamboo, a lateral wall of thrust ball bearing and the tank bottom fixed connection of bearing groove, the outer tube wall of main shaft section of thick bamboo is fixed to have cup jointed fixed side ring, the main shaft section of thick bamboo is inserted and is established in the sleeve, fixed side ring is located the bearing groove, the outer rampart of fixed side ring is close to the cell wall of bearing groove, one side fixed connection that a lateral wall and fixed side ring that bearing. The utility model has the advantages of alleviate the elasticity degree of difficulty of nut.

Description

Labor-saving device of jaw crusher pull rod

Technical Field

The utility model belongs to the technical field of jaw breaker's technique and specifically relates to a laborsaving device of jaw breaker pull rod is related to.

Background

The jaw crusher is commonly called as jaw crusher and is widely applied to crushing various ores and large materials in the industries of mine smelting, building materials, highways, railways, water conservancy, chemical engineering and the like.

When the jaw crusher works, the motor drives the movable jaw plate fixed on the eccentric shaft to do swinging motion through the belt, and when the movable jaw plate does swinging motion, the thrust plate can be propped against the movable jaw plate to play a role in supporting and transmitting the movable jaw plate and also play a role in adjusting the size of a crusher outlet and protecting the crusher from being damaged;

when the movable jaw plate is close to the static jaw plate forwards, the movable jaw plate and the thrust plate can generate inertia moment, and in the return stroke, due to the action of the inertia moment, the movable jaw plate can not swing in the return stroke in time and has the danger of falling the thrust plate, so that the tensioning mechanism is required to be used for keeping the thrust plate in close contact with the movable jaw plate and the thrust plate top seat frequently, and the pull rod of the tensioning mechanism balances the inertia force when the movable jaw plate and the thrust plate swing forwards by means of the spring tension so as to enable the movable jaw plate to swing in time in the opposite direction.

The technical problem that the prior art has the following is solved, because the one end of pull rod is articulated with the movable jaw, the one end that the movable jaw was kept away from to the pull rod and the spring on the pull rod are by the separation in the frame one side of keeping away from the movable jaw, if the breaker breaks down, when needing to maintain the movable jaw, just need give the pull rod earlier and remove, and the one end that the movable jaw was kept away from to the pull rod prevents that the spring from popping out through nut and spring guide pin bushing generally, when the movable jaw is in the return stroke state, the spring is in the pressure state, the spring can compress tightly the spring guide pin bushing on the nut, make the frictional force between nut and the spring guide pin bushing very big, people can be very hard when elasticity nut.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a laborsaving device of jaw breaker pull rod, it has the advantage that can alleviate the elasticity degree of difficulty of nut.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a laborsaving device of jaw breaker pull rod, includes sleeve, thrust ball bearing and main shaft section of thick bamboo, the sleeve thrust ball bearing with the main shaft section of thick bamboo all overlaps and establishes on the pull rod, the bearing groove has been seted up to telescopic one side, thrust ball bearing sets up in the bearing groove and lies in between the cell wall of bearing groove and the outer tube wall of main shaft section of thick bamboo, a lateral wall of thrust ball bearing and the tank bottom fixed connection of bearing groove, the outer tube wall of main shaft section of thick bamboo is fixed to have cup jointed fixed side ring, the main shaft section of thick bamboo is inserted and is established in the sleeve, fixed side ring lies in the bearing groove, the outer rampart of fixed side ring is close to the cell wall of bearing groove, thrust ball bearing keeps away from a lateral wall and one side fixed side ring of.

Through adopting above-mentioned technical scheme, with this utility model setting between nut and spring guide pin bushing, the spring guide pin bushing can be with this utility model support tightly on the nut for main shaft section of thick bamboo supports tightly with the nut, in the time of rotating the nut, frictional force between nut and the main shaft section of thick bamboo can drive a main shaft section of thick bamboo and rotate in the sleeve, the main shaft section of thick bamboo can drive thrust ball bearing and rotate in the pivoted, the frictional force that thrust ball bearing rotated the production is rolling frictional force, be far less than the spring guide pin bushing and directly support tightly when the nut, the frictional force that the swivel nut produced, make people more laborsaving in the swivel nut.

The utility model discloses further set up to: be provided with lubricated subassembly on the sleeve, lubricated subassembly includes the oil filler point and leads the oil groove, and the oil filler point is seted up on the sleeve, the oil filler point with the bearing groove communicates with each other, leads the oil groove and sets up on the cell wall of bearing groove, leads the oil groove and communicates with each other with the oil filler point.

Through adopting above-mentioned technical scheme, people can pour into lubricating oil into to the oil filler point, make thrust ball bearing rotate more easily, and it is more laborsaving when making people rotate the nut, and simultaneously, thrust ball bearing also can drive the sleeve and slide on the pull rod, and lubricating oil can reduce the frictional force between pull rod and the sleeve through leading the lubricated pull rod of oil groove, further makes things convenient for people to rotate the nut.

The utility model discloses further set up to: and a through grease nipple is arranged in the grease hole.

Through adopting above-mentioned technical scheme, direct grease nipple can enough make the oiling accessible have dustproof effect again, can prevent debris such as dust from falling into the bearing groove from the oil filler point, influence thrust ball bearing's normal rotation.

The utility model discloses further set up to: and a flow guide ring groove is formed in the outer ring wall of the fixed side ring.

By adopting the technical scheme, the guide ring is more convenient for the diffusion of lubricating oil, and the lubricating area of the counter pull rod and the main shaft cylinder is increased.

The utility model discloses further set up to: the bearing comprises a main shaft barrel and a bearing groove, wherein the bearing groove is provided with a retaining ring groove, a hole retaining ring is arranged in the retaining ring groove, the outer ring wall of the hole retaining ring is abutted against the groove bottom of the retaining ring groove, and the inner ring wall of the hole retaining ring is abutted against the outer barrel wall of the main shaft barrel.

Through adopting above-mentioned technical scheme, the lubricating oil that the retaining ring can prevent to pour into the bearing groove into for the hole flows from the notch of bearing groove, prolongs the lubricated effect of lubricating oil.

The utility model discloses further set up to: the inner cylinder wall of the main shaft cylinder is not contacted with the outer wall of the pull rod, and the outer ring wall of the fixed side ring is not contacted with the groove wall of the bearing groove.

Through adopting above-mentioned technical scheme, the contact of main shaft section of thick bamboo inner tube wall and pull rod outer wall can make the main shaft section of thick bamboo not produce and the pull rod between frictional force when moving along with thrust ball bearing, and the outer rampart of fixed side ring does not contact with the cell wall of bearing groove, when can making the nut drive main shaft section of thick bamboo pivoted, does not produce and the bearing groove cell wall between frictional force, and then makes people lighter when rotating the nut.

To sum up, the utility model discloses a beneficial technological effect does:

1. the utility model is arranged between the nut and the spring guide sleeve, the spring guide sleeve can tightly support the utility model on the nut, so that the spindle cylinder and the nut are tightly supported, when the nut is rotated, the friction force between the nut and the spindle cylinder can drive the spindle cylinder to rotate in the sleeve, the spindle cylinder can drive the thrust ball bearing to rotate when rotating, the friction force generated by the rotation of the thrust ball bearing is rolling friction force which is far less than the friction force generated by the rotation of the nut when the spring guide sleeve directly tightly supports on the nut, so that people can save more labor when rotating the nut;

2. the oil filler point can make things convenient for people to pour into lubricating oil into thrust ball bearing, makes thrust ball bearing frictional force when rotating littleer, simultaneously, leads oil groove and water conservancy diversion annular and can make the scope of lubricating oil diffusion wider, also lubricated with the sleeve of pull rod contact for when the sleeve moves on the pull rod, the frictional force of production is littleer, makes things convenient for people to rotate the nut more.

3. The hole retainer ring can prevent lubricating oil from flowing out of the bearing groove, so that the jaw crusher can be prevented from being polluted, and the waste of the lubricating oil can be avoided.

Drawings

Fig. 1 is a schematic view of the installation of the present invention on a drawbar;

fig. 2 is a schematic sectional structure of the present invention.

In the figure, 1, a pull rod; 2. a spring guide sleeve; 3. a sleeve; 4. a thrust ball bearing; 5. a main shaft cylinder; 6. a nut; 30. a bearing groove; 31. an oil filler hole; 32. an oil guide groove; 33. a straight-through grease nipple; 51. fixing the side ring; 52. a flow guide ring groove; 301. a retainer groove; 302. a retainer ring for a bore.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a labor-saving device for a jaw crusher pull rod comprises a sleeve 3, a thrust ball bearing 4 and a main shaft barrel 5. Sleeve 3, thrust ball bearing 4 and main shaft section of thick bamboo 5 all overlap and establish on pull rod 1, and sleeve 3 directly contradicts with pull rod 1, and sleeve 3's one end is contradicted with spring guide pin bushing 2 on the pull rod 1, and sleeve 3 keeps away from the one end of spring guide pin bushing 2 and has seted up bearing groove 30, and thrust ball bearing 4 installs in bearing groove 30 to a side of thrust ball bearing 4 and the tank bottom fixed connection of bearing groove 30. The fixed side ring 51 is fixedly sleeved on the outer cylinder wall of the main shaft cylinder 5, the main shaft cylinder 5 is located in the sleeve 3, the fixed side ring 51 is located in the bearing groove 30, the outer ring wall, far away from the main shaft cylinder 5, of the fixed side ring 51 is close to the groove wall of the bearing groove 30 but is not in contact with the groove wall of the bearing groove 30, and one side, close to the groove bottom of the bearing groove 30, of the fixed side ring 51 is fixedly connected with one side wall, far away from the groove bottom of the bearing groove 30, of the thrust ball bearing 4.

The spindle cylinder 5 does not contact the tension rod 1 in the sleeve 3. The thrust ball bearing 4 is positioned between the groove wall of the bearing groove 30 and the outer cylinder wall of the main shaft cylinder 5, and one end of the main shaft cylinder 5, which is far away from the spring guide sleeve 2, extends out of the sleeve 3 and is abutted against the nut 6 which is in threaded connection with the pull rod 1.

The sleeve 3 is provided with a lubricating assembly, the lubricating assembly comprises an oil filling hole 31 and an oil guide groove 32, the oil filling hole 31 is formed in the sleeve 3, the oil filling hole 31 is communicated with the bearing groove 30, and a direct grease nipple 33 is installed in the oil filling hole 31. An oil guide groove 32 is formed in a groove wall of the bearing groove 30, and the oil guide groove 32 communicates with the oil filling hole 31. The outer ring wall of the fixed side ring 51 is provided with a guide ring groove 52, and the guide ring groove 52 is communicated with the oil guide groove 32.

A retainer groove 301 is formed in a groove wall of the bearing groove 30, and the retainer groove 301 is far away from a groove bottom of the bearing groove 30 in the bearing groove 30. A hole stopper 302 is fitted in the stopper groove 301, and an outer circumferential wall of the hole stopper 302 abuts against a groove bottom of the stopper groove 301. The inner annular wall of the hole stopper 302 abuts against the outer cylindrical wall of the main cylindrical shaft 5.

The implementation principle of the embodiment is as follows: when people need to repair the jaw crusher provided with the utility model and open the movable jaw plate, the nut 6 on the pull rod 1 needs to be firstly disassembled, when the nut 6 is screwed, the nut 6 can drive the main shaft cylinder 5 to rotate through the friction force between the nut 6 and the main shaft cylinder 5, the fixed side ring 51 on the main shaft cylinder 5 can drive the thrust ball bearing 4 to rotate at one side away from the bottom of the bearing groove 30, because the main shaft cylinder 5 does not contact the pull rod 1 when rotating, and the fixed side ring 51 does not contact the groove wall of the bearing groove 30, the force which needs to be overcome when the nut 6 rotates at the moment is the rolling friction force of the thrust ball bearing 4 and the rotating friction force between the nut 6 and the pull rod 1;

when the utility model is not used, the spring guide sleeve 2 is directly and tightly propped against the nut 6, the force to be overcome by rotating the nut 6 is the sliding friction force between the nut 6 and the spring guide sleeve 2 and the rotating friction force between the nut 6 and the pull rod 1, and the rolling friction force when the thrust ball bearing 4 rotates is much smaller than the sliding friction force between the nut 6 and the spring guide sleeve 2 tightly propped against the spring guide sleeve 2, so that people can rotate the nut 6 more labor-saving when using the utility model;

if the utility model is used, when the nut 6 moves, the utility model also moves along with the nut, at the moment, the force to be overcome also comprises the sliding friction force between the sleeve 3 and the pull rod 1 and the sliding friction force between the hole retainer ring 302 and the pull rod 1, but because the sleeve 3 is filled with lubricating oil, the friction coefficient between the pull rod 1 and the sleeve 3 and between the hole retainer ring 302 and the pull rod 1 can be greatly reduced, and the sleeve 3 and the hole retainer ring 302 are not applied with the force vertical to the length direction of the pull rod 1, and the friction force between the pull rod 1 and the sleeve 3 and the friction force between the hole retainer ring 302 and the pull rod 1 are very small;

when not installing this utility model, when nut 6 removed, spring guide 2 can last to tightly on nut 6 under the elasticity of spring, and produce great pressure to nut 6, sliding friction between nut 6 and the spring guide 2 is very big, will be far more than the rolling friction when thrust ball bearing 4 rotates, sleeve 3 after the process lubrication and the pull rod between 1 sliding friction and hole with the retaining ring 302 and the pull rod between 1 sum of the friction, so, use this utility model can be more laborsaving when rotating nut 6.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a laborsaving device of jaw breaker pull rod, includes sleeve (3), thrust ball bearing (4) and main shaft tube (5), its characterized in that: the sleeve (3), thrust ball bearing (4) and a main shaft barrel (5) are all sleeved on a pull rod (1), a bearing groove (30) is formed in one side of the sleeve (3), the thrust ball bearing (4) is arranged in the bearing groove (30) and is located between the groove wall of the bearing groove (30) and the outer barrel wall of the main shaft barrel (5), one side wall of the thrust ball bearing (4) is fixedly connected with the groove bottom of the bearing groove (30), a fixed side ring (51) is fixedly sleeved on the outer barrel wall of the main shaft barrel (5), the main shaft barrel (5) is inserted into the sleeve (3), the fixed side ring (51) is located in the bearing groove (30), the outer ring wall of the fixed side ring (51) is close to the groove wall of the bearing groove (30), and one side wall of the thrust ball bearing groove (30) groove bottom, which is far away from the bearing groove (4), and one side wall of the fixed side ring (51) which is close to the groove bottom of.

2. A labor saving device for a jaw crusher drawbar according to claim 1 characterized in that: be provided with lubricated subassembly on sleeve (3), lubricated subassembly includes oil filler point (31) and leads oil groove (32), and oil filler point (31) are seted up on sleeve (3), oil filler point (31) with bearing groove (30) communicate with each other, lead oil groove (32) and set up on the cell wall of bearing groove (30), lead oil groove (32) and communicate with each other with oil filler point (31).

3. A labor saving device for a jaw crusher drawbar according to claim 2 characterized in that: and a straight-through grease nipple (33) is arranged in the grease hole (31).

4. A labor saving device for a jaw crusher drawbar according to claim 1 characterized in that: and a flow guide ring groove (52) is formed in the outer ring wall of the fixed side ring (51).

5. A labor saving device for a jaw crusher drawbar according to claim 1 characterized in that: the bearing is characterized in that a retainer ring groove (301) is formed in the groove wall of the bearing groove (30), a retainer ring (302) for a hole is arranged in the retainer ring groove (301), the outer ring wall of the retainer ring (302) for the hole is abutted against the groove bottom of the retainer ring groove (301), and the inner ring wall of the retainer ring (302) for the hole is abutted against the outer cylinder wall of the main shaft cylinder (5).

6. A labor saving device for a jaw crusher drawbar according to claim 1 characterized in that: the inner cylinder wall of the main shaft cylinder (5) is not in contact with the outer wall of the pull rod (1), and the outer ring wall of the fixed side ring (51) is not in contact with the groove wall of the bearing groove (30).