CN111215171A

CN111215171A - Grinding type crusher

Info

Publication number: CN111215171A
Application number: CN202010111684.8A
Authority: CN
Inventors: 陈金通
Original assignee: Fujian Haibao Heavy Industry Machinery Co Ltd
Current assignee: Fujian Haibao Heavy Industry Machinery Co Ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-06-02

Abstract

The invention provides a grinding crusher, which comprises a rack, a cone fixedly connected to the rack, a grinding disc rotatably connected to the rack and positioned above the cone, and a driving motor for driving the grinding disc to rotate, wherein the grinding disc is abutted against the cone, the distance between the grinding disc and the cone is gradually reduced from the axis of the cone to the peripheral direction of the cone, a grinding cavity is formed by the distance between the grinding disc and the cone, a feeding hole is formed in the grinding disc, and a feeding hopper matched with the feeding hole is arranged on the rack. Because the millstone is propped against the cone, and the distance between the millstone and the cone is gradually reduced from the axis of the cone to the peripheral direction of the cone, the stone flowing out through the gap between the millstone and the cone is necessarily crushed under the gravity action and the rotary grinding action of the millstone, the particle size of the crushed aggregate is more uniform, the yield is higher, and the particle shape of the aggregate is better.

Description

Grinding type crusher

Technical Field

The invention relates to sand making equipment, in particular to a grinding crusher.

Background

In sand production it is often necessary to use a crusher to crush the rock material, and existing crusher types typically include alligator crushers, impact crushers and cone crushers, wherein cone crushers are popular due to their advantages of higher output, better aggregate particle shape, etc.

Existing cone crushers, which typically have a moving cone and a stationary cone arranged around the moving cone, wherein the moving cone is driven in a gyratory oscillation by various sources of rotational power via an eccentric mechanism, are the subject of a number of prior patents. However, because the movable cone swings through the eccentric mechanism, the distance between the movable cone and the fixed cone changes constantly along with the rotation of the movable cone, and part of stone materials may flow out from the position between the movable cone and the fixed cone without being crushed, so that the particle size difference of the crushed aggregates is large, and the sand making quality is affected.

In addition, the existing cone crusher usually utilizes a driving motor to drive a transmission shaft to rotate, so as to drive a movable cone sleeved on the transmission shaft to rotate, and the starting power is relatively large.

In view of the above, the applicant has made an intensive study on the structure of the crusher, and has made the present invention.

Disclosure of Invention

The invention aims to provide a grinding crusher which ensures that the particle size of crushed aggregate is uniform.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a mill formula breaker, includes frame, fixed connection be in cone, rotation connection in the frame are in the frame and be located the mill of cone top and be used for the drive mill pivoted driving motor, the mill supports and pushes up on the cone, the mill with interval between the cone is followed the axis of cone to the peripheral direction of cone reduces gradually, just the mill with interval between the cone forms the grinding chamber, the feed port has been seted up on the mill, be provided with in the frame with feed port complex feeder hopper.

As an improvement of the present invention, a vertically arranged support rod is fixedly inserted into the grinding disc, spline sections are respectively disposed at two ends of the support rod, a spline sleeve capable of sliding relative to the corresponding spline section is respectively sleeved on each spline section, a support bearing is respectively sleeved on each spline sleeve, and a bearing seat fixedly connected to the frame is respectively disposed outside each support bearing.

As an improvement of the invention, a driven belt wheel is sleeved on the grinding disc, a driving belt wheel is installed on an output shaft of the driving motor, and a synchronous belt is sleeved between the driving belt wheel and the driven belt wheel.

As an improvement of the invention, the upper end surface of the driven belt wheel or the grinding disc is provided with an end surface bearing, and the upper end surface of the end surface bearing is provided with an air spring fixedly connected to the rack.

As an improvement of the invention, the rack is provided with an upright post and a top beam, the upper end of the upright post is fixedly or integrally connected with a screw rod with the outer diameter smaller than that of the upright post, a base plate which is propped against the upper end of the upright post is sleeved on the screw rod, the top beam is sleeved on the screw rod and propped against the base plate, the screw rod is also in spiral connection with a nut which is tightly pressed on the upper end surface of the top beam, and the air spring is arranged on the top beam.

As a improvement of the invention, more than two feeding holes are arranged, each feeding hole is uniformly distributed by taking the rotation axis of the grinding disc as the center,

as an improvement of the invention, the lower end of the frame is provided with a support leg and an annular discharge hopper arranged around the cone.

As an improvement of the invention, the frame is provided with an annular material baffle arranged around the cone, and a blanking channel matched with the annular discharge hopper is formed between the annular material baffle and the cone.

By adopting the technical scheme, the invention has the following beneficial effects:

1. because the millstone is propped against the cone, and the distance between the millstone and the cone is gradually reduced from the axis of the cone to the peripheral direction of the cone, the stone flowing out through the gap between the millstone and the cone is necessarily crushed under the gravity action and the rotary grinding action of the millstone, the particle size of the crushed aggregate is more uniform, the yield is higher, and the particle shape of the aggregate is better.

2. By arranging the grinding disc above the cone, grinding and crushing can be carried out by utilizing gravity, and the energy consumption is relatively low.

3. The driven belt wheel is sleeved on the grinding disc, the grinding disc is driven to rotate at the outer peripheral position of the grinding disc, and the starting power is relatively low.

4. Through setting up the spline section, when the great granule of hardness gets into the grinding chamber and is difficult to by the breakage, can avoid destroying mill dish or cone from the mode outflow of grinding the chamber through the jack-up mill dish.

Drawings

FIG. 1 is a schematic view of the structure of the mill-type crusher of the present invention;

FIG. 2 is a front view of a grinding disc of the mill-type crusher of the present invention;

fig. 3 is a schematic top view of a grinding disc of the inventive mill-type crusher.

The corresponding designations in the figures are as follows:

10-a frame; 11-a base;

12-a column; 13-top beam;

14-a screw; 15-a backing plate;

16-a nut; 17-a leg;

18-ring discharge hopper; 19-an annular striker plate;

20-cone; 21-a grinding chamber;

30-a grinding disc; 31-a support bar;

32-spline section; 33-spline housing;

34-a support bearing; 35-a bearing seat;

36-a feed port; 40-a drive motor;

41-driven pulley; 42-driving pulley;

43-end face bearing; 44-air spring;

50-a feed hopper; 60-a blanking channel.

Detailed Description

The invention will be further described with reference to specific examples:

as shown in fig. 1-3, the present embodiment provides a mill crusher, which comprises a frame 10, a cone 20 fixedly connected to the frame 10, a grinding disc 30 rotatably connected to the frame 10 and located above the cone 20, and a driving motor 40 for driving the grinding disc 30 to rotate, wherein the driving motor 40 may be directly mounted on the frame 10 or mounted on a frame body independent from the frame 10, and an output shaft of the driving motor 40 is vertically arranged.

The rack 10 has a base 11, two or more upright columns 12 fixedly connected to the base 11 respectively, and a top beam 13 located above the base 11, in this embodiment, two of the upright columns 12 are taken as an example for illustration, the upper end of each upright column 12 is fixedly connected or integrally connected with a screw 14 having an outer diameter smaller than that of the corresponding upright column 12, each screw 14 is sleeved with a backing plate 15 abutting against the upper end of the corresponding upright column 12, two ends of the top beam 13 are respectively sleeved on the two screw 14 in a one-to-one correspondence manner and abut against the corresponding backing plate 15, and each screw 14 is further spirally connected with a nut 16 tightly pressed on the upper end face of the top beam 13, so that the height position of the top beam 13 can be adjusted by changing the number of the backing plates 15. Furthermore, the lower end of the frame 10 is provided with feet 17 and an annular discharge hopper 18 arranged around the cone 20, the annular hopper 18 of course being located below the cone 20.

The cone 20 is fixedly connected to the base 11, and a through hole is formed in the axis position of the cone 20. The grinding disc 30 abuts against the conical surface of the cone 20 and is coaxially arranged with the cone 20, specifically, a vertically-arranged support rod 31 is fixedly inserted into the grinding disc 30, spline sections 32 are respectively arranged at two ends of the support rod 31, a spline sleeve 33 which can slide relative to the corresponding spline section 32 is respectively sleeved on each spline section 32, it should be noted that the spline hole of the spline sleeve 33 is a through hole, and the length of the spline section 32 is greater than that of the corresponding spline sleeve 33. Each spline housing 33 is sleeved with a support bearing 34, a bearing seat 35 fixedly connected to the frame 10 is arranged outside each support bearing 34, wherein the bearing seat 35 at the upper end of the support rod 31 is fixedly connected to the top beam 13, the bearing seat 35 at the lower end of the support rod 31 is fixedly connected to the upper base 11, and the lower end of the support rod 31 passes through the through hole to be connected with the corresponding spline housing 33.

The distance between the grating disc 30 and the cone 20 decreases from the axis of the cone 20 towards the circumference of the cone 20, and the distance between the grating disc 30 and the cone 20 forms a grinding chamber 21. The grinding disc 30 is provided with a feeding hole 36 communicated with the grinding cavity 21, only one feeding hole 36 may be provided, or more than two feeding holes 36 may be provided, and when there are more than two feeding holes 36, the feeding holes 36 are uniformly distributed around the rotation axis of the grinding disc 30 (i.e. the axis of the cone 20). In addition, the top beam 13 of the frame 10 is provided with a feeding hopper 50 matched with the feeding hole 36, the discharging hole of the feeding hopper 50 is positioned near the upper end of the grinding disc 30, and the distance between the discharging hole of the feeding hopper 50 and the rotation axis of the grinding disc 30 is the same as the distance between the feeding hole 36 and the rotation axis of the grinding disc 30, preferably, in order to ensure that the stone material in the feeding hopper 50 can accurately flow into the feeding hole 36, a flexible wear-resistant curtain pressed on the grinding disc 30 can be wound on the discharging hole of the feeding hopper 50, or a guide surface is arranged at the upper end of the feeding hole 36.

The specific transmission connection structure between the driving motor 40 and the grinding disc 30 may be a conventional structure, such as a gear transmission structure or a chain transmission structure, in this embodiment, the grinding disc 30 is sleeved with a driven pulley 41, that is, the grinding disc 30 is embedded on the driven pulley 41, the output shaft of the driving motor 40 is mounted with a driving pulley 42, and a synchronous belt (not shown in the figure) is sleeved between the driving pulley 42 and the driven pulley 41, so that the driven pulley 41 can be driven by clicking to drive the grinding disc 30 to rotate at the peripheral position of the grinding disc 30, and the starting power is relatively low. In addition, the driven pulley 41 or the upper end surface of the grinding disc 30 is provided with an end surface bearing 43 (also called a thrust bearing), and the upper end surface of the end surface bearing 43 is provided with an air spring 44 fixedly connected to the top beam 13 of the frame 10, so that the air spring 44 can be used for limiting the upward movement amplitude of the grinding disc 30, and the amplitude can be adjusted by adjusting the height position of the top beam 13.

Preferably, an annular striker plate 19 arranged around the cone 20 is arranged on the base 11 of the machine frame 10, that is, the cone 20 is located in a space enclosed by the annular striker plate 19, and the horizontal position of the upper end of the annular striker plate 19 is greater than the horizontal position of the contact position between the grinding disc 30 and the cone 20. A blanking channel 60 matched with the annular discharge hopper 18 is formed between the annular striker plate 19 and the cone 20.

When the stone material is put into the feeding hopper 50, when one of the feeding holes 36 rotates to a position communicated with the feeding hopper 50, the stone material in the feeding hopper 50 flows into the grinding cavity 21 through the feeding hopper 50 and gradually moves downwards along the conical surface of the cone 20 under the action of gravity, in the process, the stone material is gradually ground and decomposed into sand grains with relatively small grain sizes, then the sand grains are squeezed into the contact position between the grinding disc 30 and the cone 20, at the moment, the grinding disc 30 is slightly jacked upwards, in the process, the sand grains are once again submerged under the action of the gravity of the grinding disc 30 to form aggregates, and the aggregates flow into the blanking channel 60 under the action of the gravity and finally flow out through the annular discharging hopper 18.

The present invention is described in detail with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the above embodiments, and those skilled in the art can make various modifications to the present invention according to the prior art, for example, the bearing seat 35 at the lower end of the support rod 31 is fixedly connected to the base 11, instead of the cone 20, and so on, which belong to the protection scope of the present invention.

Claims

1. The utility model provides a mill formula breaker, its characterized in that, including frame, fixed connection cone, rotation connection in the frame are in the frame and be located the mill of cone top and be used for the drive mill pivoted driving motor, the mill supports and is in on the cone, the mill with interval between the cone is followed the axis of cone to the peripheral direction of cone reduces gradually, just the mill with interval between the cone forms the grinding chamber, the feed port has been seted up on the mill, be provided with in the frame with feed port complex feeder hopper.

2. A mill crusher as claimed in claim 1, wherein the grinding disc is fixedly inserted with a vertically arranged support rod, spline sections are respectively provided at two ends of the support rod, a spline sleeve capable of sliding relative to the corresponding spline section is respectively sleeved on each spline section, a support bearing is respectively sleeved on each spline sleeve, and a bearing seat fixedly connected to the frame is respectively provided outside each support bearing.

3. A mill crusher as claimed in claim 2, wherein the grinding disc is sleeved with a driven pulley, the output shaft of the driving motor is provided with a driving pulley, and a synchronous belt is sleeved between the driving pulley and the driven pulley.

4. A mill crusher according to claim 3, characterized in that the upper end surface of the driven pulley or the grinding disc is provided with an end bearing, the upper end surface of which is provided with an air spring fixedly connected to the frame.

5. A mill crusher as claimed in claim 4, wherein said frame has an upright and a top beam, the upper end of said upright is fixedly or integrally connected with a screw rod having an outer diameter smaller than that of said upright, said screw rod is sleeved with a backing plate abutting against the upper end of said upright, said top beam is sleeved on said screw rod and abutting against said backing plate, said screw rod is further screw-connected with a nut pressing against the upper end face of said top beam, and said air spring is mounted on said top beam.

6. A mill crusher as claimed in claim 1, characterised in that there are more than two said feed holes, each said feed hole being evenly distributed about the rotational axis of said grinding disc.

7. A mill crusher as claimed in any one of claims 1 to 6, characterized in that the lower end of the frame is provided with a foot and an annular discharge hopper arranged around the cone.

8. A mill crusher as claimed in claim 7, wherein the frame is provided with an annular striker plate arranged around the cone, a blanking channel cooperating with the annular discharge hopper being formed between the annular striker plate and the cone.