CN209829075U

CN209829075U - Non-eccentric sleeve type cone crusher

Info

Publication number: CN209829075U
Application number: CN201920525017.7U
Authority: CN
Inventors: 赵红亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2019-12-24
Anticipated expiration: 2029-04-17

Abstract

The utility model discloses a no eccentric bushing type cone crusher, including the frame, set up in the frame decide broken wall subassembly, with decide broken wall subassembly complex move broken wall subassembly and be used for the drive to move broken wall subassembly wobbling rotatory drive assembly, drive assembly includes the bent axle and is used for driving bent axle pivoted bent axle rotation drive arrangement, the eccentric part of bent axle is used for moving broken wall subassembly. The eccentric sleeve-free cone crusher adopts the eccentric part of the crankshaft to drive the movable crushing wall component to swing and rotate to replace an eccentric sleeve in the prior art, thereby directly canceling the eccentric sleeve and related easily-worn consumption mechanisms such as a bush matched with the eccentric sleeve, prolonging the service life of a product and saving the use cost; meanwhile, the eccentric part of the crankshaft is adopted to drive the movable crushing wall assembly, so that the driving friction is smaller compared with that of an eccentric sleeve, the rotating speed is favorably improved, and the working efficiency is improved.

Description

Non-eccentric sleeve type cone crusher

Technical Field

The utility model relates to a no eccentric cover type cone crusher, in particular to no eccentric cover type cone crusher.

Background

The eccentric sleeve mechanism is one of key components of the cone crusher, and mainly has the functions of driving the movable cone to rotate and swing and supporting the movable cone. At present, an eccentric sleeve mechanism of a national cone crusher generally adopts a structural form of a copper eccentric sleeve, and the eccentric sleeve, a movable cone main shaft and a rack central sleeve are in a sliding motion form. Therefore, the rotating speed between the eccentric copper sleeve and the central sleeve and between the eccentric copper sleeve and the main shaft of the movable cone on the rack is limited, the rotating speed is difficult to improve, and the working efficiency and the production capacity of the cone crusher are reduced; the friction coefficient of sliding friction is far greater than that of rolling friction, so that abrasion between the eccentric sleeve and the central sleeve on the rack and between the eccentric copper sleeve and the main shaft of the movable cone is large, the service life of the machine is shortened, and the use cost of the machine is increased.

In addition, the movable cone of the cone crusher in the prior art is fixedly connected with the cone main shaft, and the movable cone rotates synchronously along with the cone main shaft. As a result, the crusher is still loaded in a standby idling state, which wastes energy.

Therefore, there is a need for improvement of the prior art to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a cone crusher without an eccentric sleeve, which can drive a movable cone to swing rotationally without an eccentric sleeve, so as to avoid a series of adverse effects caused by the structure of the eccentric sleeve; the utility model discloses further aim at reduces the standby during idling moving cone along with the awl main shaft synchronous rotation cause the energy extravagant. The method is realized by the following technical scheme:

the utility model discloses a no eccentric bushing type cone crusher, including the frame, set up in the frame decide broken wall subassembly, with decide broken wall subassembly complex move broken wall subassembly and be used for the drive to move broken wall subassembly swing rotatory drive assembly, drive assembly includes the bent axle and is used for driving bent axle pivoted bent axle rotation drive arrangement, the eccentric part of bent axle acts on and moves broken wall subassembly.

In a preferred technical scheme, an eccentric part of the crankshaft acts on the movable crushing wall assembly through a movable cone bearing seat, and a movable cone bearing is arranged between the movable cone bearing seat and the eccentric part of the crankshaft.

In the preferred technical scheme, the movable cone bearings are arranged in two numbers and are respectively arranged at the upper end and the lower end of the eccentric part.

In the preferred technical scheme, the movable cone bearing adopts a double-row tapered roller bearing.

In the preferred technical scheme, the movable cone bearing seat is detachably matched and connected with the movable crushing wall assembly and the movable cone bearing.

In a preferred technical scheme, two axial sides of the eccentric part of the crankshaft are both provided with concentric shaft parts, and a concentric bearing is arranged between the concentric shaft parts and the rack.

In the preferred technical scheme, the crankshaft axial reciprocating driving device is used for driving the crankshaft to axially reciprocate, the crankshaft rotating driving device comprises a concentric shaft gear fixedly arranged on the part of the concentric shaft, an intermediate transmission gear meshed with the concentric shaft gear and a prime mover used for driving the intermediate transmission gear to rotate, and the thicknesses of the concentric shaft gear and the intermediate transmission gear are different, so that two dead points of the concentric shaft gear in axial motion and the middle states of the two dead points can be normally meshed with the intermediate transmission gear for transmission.

In a preferable technical scheme, a gear shell for preventing the broken materials from influencing the work of the gear is arranged outside the concentric shaft gear and the intermediate transmission gear.

In the preferred technical scheme, gear bearings are arranged between the gear shell, the rack and the intermediate transmission gear.

In a preferred technical scheme, the concentric bearing adopts a cylindrical roller bearing, an inner ring of the concentric bearing is fixedly connected to the concentric shaft, and the height of the inner ring is greater than that of the outer ring, so that the concentric bearing can be matched with the outer ring along with two dead points of axial movement of the concentric shaft and the middle states of the two dead points.

The utility model has the advantages that: the eccentric sleeve-free cone crusher adopts the eccentric part of the crankshaft to drive the movable crushing wall component to swing and rotate to replace an eccentric sleeve in the prior art, thereby directly canceling the eccentric sleeve and related easily-worn consumption mechanisms such as a bush matched with the eccentric sleeve, prolonging the service life of a product and saving the use cost; meanwhile, the eccentric part of the crankshaft is adopted to drive the movable crushing wall assembly, so that the driving friction is smaller compared with that of an eccentric sleeve, the rotating speed is favorably improved, and the working efficiency is improved.

Other advantageous effects of the present invention will be further described with reference to the following embodiments.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a schematic sectional view of a small-sized non-eccentric sleeve type cone crusher according to the present invention;

fig. 2 is a schematic view of a cross-sectional structure of a large-sized non-eccentric sleeve type cone crusher according to the present invention.

Detailed Description

As shown in the figure: the cone crusher without the eccentric sleeve in the embodiment comprises a frame, a fixed crushing wall assembly 18 arranged in the frame, a movable crushing wall assembly 20 matched with the fixed crushing wall assembly 18 and a driving assembly used for driving the movable crushing wall assembly 20 to swing and rotate, wherein the driving assembly comprises a crankshaft and a crankshaft rotation driving device used for driving the crankshaft to rotate, and an eccentric part 29 of the crankshaft acts on the movable crushing wall assembly.

The frame comprises an upper frame 17 and a lower frame 24, and the parts of the fixed crushing wall assembly 18 and the movable crushing wall assembly 20 which are mutually matched are prior art and are not described in detail herein. The crankshaft includes a lower concentric shaft portion 28, an eccentric portion 29, and an upper concentric shaft portion 30, which are arranged in this order from the bottom up. The crankshaft rotation driving device may be the driving device in the following embodiments, and other driving devices capable of driving the crankshaft to rotate in the prior art, such as a motor, etc., may also be used.

In this embodiment, the eccentric portion 29 of the crankshaft acts on the dynamic crushing wall assembly 20 through a dynamic cone bearing seat 19, and a dynamic cone bearing is arranged between the dynamic cone bearing seat 19 and the eccentric portion of the crankshaft. Of course, it would also work to fixedly attach the moving crushing wall assembly 20 directly to the eccentric portion 29 of the crankshaft, but during idle standby of the crusher, the moving crushing wall assembly 20 would rotate with the crankshaft, wasting energy.

With the structure of the present embodiment, when the crusher is idle, the friction force between the movable crushing wall assembly 20 and the eccentric part 29 of the crankshaft through the movable cone bearing seat 19 and the bearing is very small, so the work of the crankshaft acting on the movable crushing wall assembly 20 and the movable cone bearing seat 19 is very small and can be almost ignored, and a lot of energy can be saved. After the crusher is fed, the materials between the fixed crushing wall assembly 18 and the movable crushing wall assembly 20 can extrude the movable crushing wall assembly 20 and the movable cone bearing seat 19, and the friction force between the movable crushing wall assembly 20 and the eccentric part 29 of the crankshaft is increased through the movable cone bearing seat 19 and the bearing, so that the normal operation is not influenced. The extrusion degree is related to the particle size of the material, the larger the particle size is, the larger the friction force is, the stronger the crushing effect is, and the large-particle material is conveniently crushed; the smaller the particle size is, the lower the friction force is, and the lower the crushing effect is; overall, the homogeneity of the crushing result is better. And the operation of the crankshaft provided with the moving cone bearing is more stable.

In this embodiment, the number of the movable cone bearings is two, including an upper movable cone bearing 10 and a lower movable cone bearing 9, which are respectively disposed at the upper end and the lower end of the eccentric portion 29. Two movable cone bearings are arranged to further compete for the stability of the crankshaft in operation.

In this embodiment, the movable cone bearing is a double-row tapered roller bearing. The double-row tapered roller bearing not only bears the axial pressure of the movable cone bearing seat, but also bears the radial pressure of the movable cone bearing seat.

In this embodiment, the movable cone bearing seat 19 is detachably connected with the movable crushing wall assembly 20 and the movable cone bearing in a matching manner, and can be realized by the upper screw nut assembly 12 and the lower screw nut assembly 11. The movable cone bearing seat 19 is convenient to disassemble and maintain, and a dustproof cover 13 can be arranged on the movable cone bearing seat 19.

In this embodiment, both axial sides of the crankshaft eccentric portion 29 are provided as concentric shaft portions, the upper concentric shaft portion 30 and the upper frame 17 are provided with the upper concentric bearing 15 therebetween, and the lower concentric shaft portion 28 and the lower frame 24 are provided with the lower concentric bearing 5 therebetween. The stability of the crankshaft operation is further enhanced, the invalid friction is reduced, the operation cost is saved, and meanwhile, the service life of related parts of the crankshaft is prolonged. Of course, upper gland 16 and gland 14 may be positioned above upper concentric shaft portion 30; the lower concentric shaft part 28 can be provided with a thrust bearing 1 below, the lower concentric shaft 5 is provided with a pressing sleeve 4, a fixed seat 3 and a gap adjusting seat 2 below in sequence, and the thrust bearing 1 is arranged between the lower concentric shaft part 28 and the gap adjusting seat 2.

In this embodiment, the crankshaft axial reciprocating drive device is further included for driving the crankshaft to perform axial reciprocating motion, the crankshaft axial reciprocating drive device may adopt a hydraulic cylinder and the like, and the specific structure is the prior art and is not described herein again. The crankshaft rotation driving device comprises a concentric shaft gear 6 fixedly arranged on a lower concentric shaft part 28, an intermediate transmission gear 22 meshed with the concentric shaft gear 6 and a prime mover used for driving the intermediate transmission gear to rotate, the thicknesses of the concentric shaft gear 6 and the intermediate transmission gear 22 are different, so that the two dead points of the axial movement of the concentric shaft gear 6 and the intermediate states of the two dead points can be normally meshed with the intermediate transmission gear 22 for transmission, the thickness of the concentric shaft gear 6 can be set to be thinner than that of the intermediate transmission gear 22 as shown in the figure, and the thickness of the concentric shaft gear 6 can be set to be thicker than that of the intermediate transmission gear 22. The transmission matching structure in the embodiment is in sliding fit with the eccentric sleeve relative to the traditional movable cone shaft, the price of the gear is lower relative to the copper eccentric sleeve, and the service life is longer.

As shown in fig. 1, the prime mover of the small-sized cone crusher of the non-eccentric sleeve type directly drives the intermediate transmission gear 22 to rotate via the pulley 26. As shown in fig. 2, the prime mover of the large cone crusher is driven to rotate the intermediate drive gear 22 by a pulley, a mating bevel gear set 26 a.

In this embodiment, a gear case 7 for preventing the crushed material from affecting the operation of the gear is provided outside the concentric shaft gear 6 and the intermediate transmission gear 22.

In this embodiment, a gear bearing is disposed between the gear housing 7, the lower frame 24 and the intermediate transmission gear 22, the gear bearing includes an upper gear bearing 21 and a lower gear bearing 23, and of course, a gland 25 may be disposed below the lower gear bearing. The stability of the operation of the intermediate transmission gear 22 is enhanced.

In this embodiment, the upper concentric bearing 15 and the lower concentric bearing 5 are cylindrical roller bearings, inner rings of the upper concentric bearing 15 and the lower concentric bearing 5 are respectively and fixedly connected to the upper concentric shaft portion 30 and the lower concentric shaft 5, and heights of the inner rings are respectively greater than heights of the outer rings, so that both dead points of the inner rings moving along with the concentric shaft in the axial direction and intermediate states of the two dead points can be matched with the outer rings.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a no eccentric bushing type cone crusher, includes the frame, set up in the frame decide broken wall subassembly, with decide broken wall subassembly complex move broken wall subassembly and be used for the drive to move broken wall subassembly swing rotatory drive assembly, its characterized in that: the drive assembly includes a crankshaft, an eccentric portion of which acts on the moving crushing wall assembly, and a crankshaft rotation drive for driving the crankshaft in rotation.

2. The cone crusher of claim 1, wherein: the eccentric part of the crankshaft acts on the movable crushing wall assembly through a movable cone bearing seat, and a movable cone bearing is arranged between the movable cone bearing seat and the eccentric part of the crankshaft.

3. The cone crusher of the non-eccentric sleeve type according to claim 2, wherein: the movable cone bearings are arranged in two numbers and are respectively arranged at the upper end and the lower end of the eccentric part.

4. The cone crusher of claim 3, wherein: the movable cone bearing adopts a double-row tapered roller bearing.

5. The cone crusher of the non-eccentric sleeve type according to claim 2, wherein: the movable cone bearing seat is detachably matched and connected with the movable crushing wall assembly and the movable cone bearing.

6. The cone crusher of claim 1, wherein: the two axial sides of the eccentric part of the crankshaft are both arranged to be concentric shaft parts, and a concentric bearing is arranged between the concentric shaft parts and the rack.

7. The cone crusher of the present invention further comprising a crankshaft axial reciprocating drive for driving the crankshaft in an axial reciprocating motion, wherein: the crankshaft rotation driving device comprises a concentric shaft gear fixedly arranged on the part of a concentric shaft, an intermediate transmission gear meshed with the concentric shaft gear and a prime motor used for driving the intermediate transmission gear to rotate, wherein the concentric shaft gear and the intermediate transmission gear are different in thickness, so that two dead points of the axial movement of the concentric shaft gear and the middle states of the two dead points can be normally meshed with the intermediate transmission gear for transmission.

8. The cone crusher of claim 7, wherein: and a gear shell for preventing the crushed materials from influencing the work of the gear is arranged outside the concentric shaft gear and the intermediate transmission gear.

9. The cone crusher of claim 8, wherein: and gear bearings are arranged between the gear shell and the rack and between the gear shell and the intermediate transmission gear.

10. The cone crusher of claim 7, wherein: the concentric bearing adopts a cylindrical roller bearing, the inner ring of the concentric bearing is fixedly connected to the concentric shaft, and the height of the inner ring is greater than that of the outer ring, so that the concentric bearing can be matched with the outer ring along with two dead points of the axial movement of the concentric shaft and the intermediate state of the two dead points.