CN211964305U - a grinder - Google Patents

Abstract

The utility model provides a grinding crusher, comprising a frame, a cone fixedly connected to the frame, a grinding disc rotatably connected to the frame and located above the cone, and a grinding disc for driving the a drive motor for the rotation of the grinding disc, the grinding disc abuts on the cone, the distance between the grinding disc and the cone gradually decreases from the axis of the cone to the peripheral direction of the cone, and The distance between the grinding disc and the cone forms a grinding cavity, the grinding disc is provided with a feeding hole, and the frame is provided with a feeding hopper matched with the feeding hole. Since the grinding disc is abutting on the cone, and the distance between the grinding disc and the cone gradually decreases from the axis of the cone to the circumference of the cone, the stone flowing out through the gap between the grinding disc and the cone will inevitably be in the grinding disc. It is crushed under the action of gravity and rotary grinding, and the particle size of the aggregate formed by crushing is relatively uniform, the output is higher, and the shape of the aggregate is better.

Description

a grinder

technical field

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

Background technique

In sand production, it is usually necessary to use a crusher to crush the stone. The existing types of crushers usually include crocodile crusher, impact crusher and cone crusher. Among them, cone crusher has higher output and better aggregate shape. popular for its advantages.

Existing cone crushers usually have a moving cone and a fixed cone arranged around the moving cone, wherein the moving cone can be driven by various rotary power sources to swing and swing through an eccentric mechanism. The subject of an existing patent. However, since the moving cone rotates and oscillates through an eccentric mechanism, the distance between the moving cone and the fixed cone will inevitably change with the rotation of the moving cone, and some stones may not be broken and the diameter will follow. The outflow between the cone and the fixed cone leads to a large difference in the particle size of the aggregate formed by crushing, which affects the quality of sand making.

In addition, the existing cone crusher usually uses a drive motor to drive the transmission shaft to rotate, thereby driving the moving cone sleeved on the transmission shaft to rotate, and the starting power is relatively large.

In view of this, the applicant has conducted in-depth research on the structure of the crusher, resulting in this case.

Utility model content

The purpose of the utility model is to provide a grinding-type crusher with a relatively uniform particle size of the aggregate formed by crushing.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A grinding crusher, comprising a frame, a cone fixedly connected to the frame, a grinding disc rotatably connected to the frame and located above the cone, and a drive for driving the grinding disc to rotate a motor, the grinding disc abuts on the cone, the distance between the grinding disc and the cone gradually decreases from the axis of the cone to the circumference of the cone, and the grinding disc and the cone gradually decrease. The distance between the cones forms a grinding cavity, the grinding disc is provided with a feeding hole, and the frame is provided with a feeding hopper matched with the feeding hole.

As an improvement of the present invention, vertically arranged support rods are fixed and inserted on the grinding disc, two ends of the support rods are respectively provided with spline segments, and each spline segment is sleeved with a pair of opposite For the spline sleeves sliding on the corresponding spline segments, each of the spline sleeves is respectively sleeved with a support bearing, and the outside of each of the support bearings is respectively provided with a bearing seat fixedly connected to the frame.

As an improvement of the present utility model, a driven pulley is sleeved on the grinding disc, a driving pulley is installed on the output shaft of the driving motor, and a driven pulley is sleeved between the driving pulley and the driven pulley. With timing belt.

As an improvement of the present invention, the upper end face of the driven pulley or the grinding disc is provided with an end face bearing, and the upper end face of the end face bearing is provided with an air spring fixedly connected to the frame.

As an improvement of the present utility model, the frame has a column and a top beam, the upper end of the column is fixedly connected or integrally connected with a screw with an outer diameter smaller than the column, and the screw is sleeved with a bearing against the column. The backing plate at the upper end of the column, the top beam is sleeved on the screw rod and abuts on the backing plate, and the screw is also screwed with a nut pressed on the upper end surface of the top beam, so The air spring is mounted on the top beam.

As an improvement of the present utility model, there are more than two feeding holes, and each feeding hole is evenly distributed with the rotation axis of the grinding disc as the center,

As an improvement of the present invention, the lower end of the frame is provided with feet and an annular discharge hopper arranged around the cone.

As an improvement of the present utility model, the frame is provided with an annular baffle plate arranged around the cone, and a space between the annular baffle plate and the cone that cooperates with the annular discharge hopper is formed. Blanking channel.

Adopting the above-mentioned technical scheme, the utility model has the following beneficial effects:

1. Since the grinding disc is abutting on the cone, and the distance between the grinding disc and the cone gradually decreases from the axis of the cone to the circumference of the cone, the stone flowing out through the gap between the grinding disc and the cone will inevitably The grinding disc is crushed under the action of gravity and rotary grinding, and the particle size of the aggregate formed by crushing is relatively uniform, the output is higher, and the aggregate shape is better.

2. By setting the grinding disc above the cone, gravity can be used for grinding and crushing, and the energy consumption is relatively low.

3. By setting the driven pulley 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. By setting the spline section, when the particles with higher hardness enter the grinding chamber and are difficult to be broken, they can flow out of the grinding chamber by jacking up the grinding disc to avoid damaging the grinding disc or cone.

Description of drawings

Fig. 1 is the structural representation of the utility model grinding crusher;

Fig. 2 is the front view structure schematic diagram of the grinding disc of the utility model grinding crusher;

FIG. 3 is a schematic top view of the structure of the grinding disc of the grinding crusher of the present invention.

The corresponding symbols in the figure are as follows:

10-rack; 11-base;

12-column; 13-head beam;

14-screw; 15-backing plate;

16-nut; 17-foot;

18-annular discharge hopper; 19-annular baffle;

20-cone; 21-grinding cavity;

30-grinding disc; 31-support rod;

32-spline segment; 33-spline sleeve;

34-support bearing; 35-bearing seat;

36-feed hole; 40-drive motor;

41- driven pulley; 42- driving pulley;

43-face bearing; 44-air spring;

50-feeding hopper; 60-blanking channel.

Detailed ways

The utility model is further described below in conjunction with specific embodiment:

As shown in FIGS. 1-3 , the present embodiment provides a grinding crusher, which includes a frame 10 , a cone 20 fixedly connected to the frame 10 , rotatably connected to the frame 10 and located above the cone 20 The grinding disc 30 and the driving motor 40 for driving the grinding disc 30 to rotate, wherein the driving motor 40 can be directly installed on the frame 10, or can be installed on a frame body independent of the frame 10, and the output of the driving motor 40 The shafts are arranged vertically.

The rack 10 has a base 11, two or more uprights 12 fixedly connected to the base 11 respectively, and a top beam 13 located above the base 11. In this embodiment, two uprights 12 are used as an example for illustration. The upper ends of the beams are fixedly connected or integrally connected with screws 14 with an outer diameter smaller than the corresponding column 12. Each screw 14 is sleeved with a backing plate 15 abutting against the upper end of the corresponding column 12, and the two ends of the top beam 13 correspond one-to-one It is sleeved on the two screws 14 and pressed against the corresponding backing plate 15, and each screw 14 is also screwed with a nut 16 that is pressed against the upper end surface of the top beam 13, so that it can be changed by changing the backing plate 15. Quantity to adjust the height position of the top beam 13 . In addition, the lower end of the frame 10 is provided with feet 17 and an annular discharge hopper 18 arranged around the cone 20 . Of course, the annular hopper 18 is located below the cone 20 .

The cone 20 is fixedly connected to the base 11 , and a through hole is formed at the axial position of the cone 20 . The grinding disc 30 abuts on the conical surface of the cone 20 and is arranged coaxially with the cone 20 . Specifically, the grinding disc 30 is fixedly inserted with vertically arranged support rods 31 , and two ends of the support rod 31 are respectively provided with splines. Section 32, each spline section 32 is sleeved with a spline sleeve 33 that can slide relative to the corresponding spline section 32. It should be noted that the spline hole of the spline sleeve 33 is a through hole, and the spline section The length of 32 is greater than the length of the corresponding spline sleeve 33 . Each spline sleeve 33 is respectively sleeved with a support bearing 34, and each support bearing 34 is respectively provided with a bearing seat 35 fixedly connected to the frame 10, wherein the bearing seat 35 located at the upper end of the support rod 31 is fixedly connected to the top beam 13, and the bearing seat 35 located 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 is connected to the corresponding spline sleeve 33 through the hole.

The distance between the grinding disc 30 and the cone 20 gradually decreases from the axis of the cone 20 to the circumferential direction of the cone 20 , and the distance between the grinding disc 30 and the cone 20 forms the grinding cavity 21 . The grinding disc 30 is provided with a feeding hole 36 that communicates with the grinding cavity 21. The feeding hole 36 can be provided with only one or more than two feeding holes. The axis of rotation of 30 (ie, the axis of cone 20) is centered. In addition, the top beam 13 of the frame 10 is provided with a feeding hopper 50 matched with the feeding hole 36 . The distance between the rotation axis of the grinding disc 30 and the distance between the feed hole 36 and the rotation axis of the grinding disc 30 are the same. A flexible wear-resistant curtain pressed against the grinding disc 30 is wound around the discharge port of the hopper 50 , or a guide surface is provided at the upper end of the feeding hole 36 .

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

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

When in use, the stones are put into the feeding hopper 50. When a certain feeding hole 36 rotates to a position that communicates with the feeding hopper 50, the stones in the feeding hopper 50 will flow into the grinding chamber 21 through the feeding hopper 50, and the Gradually move down along the conical surface of the cone 20 under the action of gravity. During this process, the stones are gradually ground and decomposed into relatively small grains of sand, which are then squeezed into the grinding disc 30 and the cone 20 At this time, the grinding disc 30 will be slightly lifted upwards. During this process, the sand grains will be submerged again under the gravity of the grinding disc 30 to form aggregates, and these aggregates will flow into and fall under the action of gravity. The material channel 60 finally flows out through the annular discharge hopper 18 .

The present utility model has been described in detail above in conjunction with the accompanying drawings, but the embodiments of the present utility model are not limited to the above-mentioned embodiments, and those skilled in the art can make various deformations to the present utility model according to the prior art, such as placing the The bearing seat 35 at the lower end of 31 is changed from being fixedly connected to the base 11 to being fixedly connected to the cone 20, etc., which all belong to the protection scope of the present invention.

Claims (8)

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.

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