A coal mine vertical shaft skip hoist

Abstract

The present application relates to the technical field of elevators, and discloses a coal mine vertical shaft skip elevator, including a hanger, a first connecting rod is pinned to the middle of one side of the bottom end of the hanger, and the other end of the first connecting rod is pinned to the second connecting rod, the other end of the second connecting rod is pinned to one side of the bottom end of the skip, an ear seat is fixedly installed in the middle of the left side of the bottom end of the skip, and a transmission shaft is movably sleeved inside the ear seat, and an impact ball is provided on the outer surface of the transmission shaft, and a winding drum is fixedly sleeved in the middle of the outer surface of the transmission shaft. The present application provides a coal mine vertical shaft skip elevator, and the arrangement of the bottom end structure of the skip can be such that during the process of the skip turning over, as the pin connection point between the first connecting rod and the second connecting rod gradually moves away from the transmission shaft, the wire rope can be pulled to drive the winding drum and the transmission shaft to rotate, and drive the impact ball on the transmission shaft to impact the bottom end of the skip, so that the skip vibrates to prevent wet materials from adhering to its inner wall.

Description

Technical Field

[0001] The present application relates to the technical field of hoists, and in particular to a coal mine vertical shaft skip hoist. Background Art

[0002] The skip elevator is a kind of transportation equipment used in mines and can directly load useful minerals, waste rock or gangue. It has the characteristics of high lifting efficiency, good safety performance and large transportation volume. It has been widely used in the mining industry and has effectively improved the production capacity of mining enterprises.

[0003] Among them, the existing skip elevators mostly use a flipping method to unload the lifted materials. When loading and lifting materials, because the materials are mined from underground and have a high humidity, part of the materials will adhere to the inner wall of the skip when it is flipped to unload, which will not only reduce the actual capacity of the skip, but also reduce the efficiency of material transportation. At the same time, the materials adhered to the inner wall of the skip will also increase their own weight, which will increase the ineffective work of the skip elevator during the up and down transportation process, and the stability and reliability are poor.

[0004] Therefore, there is an urgent need for a skip structure on a coal mine shaft hoist to solve the defects of the above-mentioned existing skip hoists in actual use. Summary of the invention

[0005] The present application proposes a coal mine vertical shaft skip elevator, which has the advantage of being able to remove materials adhered to the inner wall of the skip by means of impact vibration when the skip is turned over to unload, thereby increasing the material transportation efficiency and reducing the ineffective work of the skip elevator during the up and down transportation process. It is used to solve the problem that the existing skip elevators mostly use a turning method to unload the lifted materials, and when loading and lifting materials, because the materials are mined from the underground and have a high humidity, part of the materials will adhere to the inner wall of the skip when it is turned over to unload, which will cause the actual capacity of the skip to become smaller and the efficiency of material transportation to become lower. At the same time, the materials adhered to the inner wall of the skip will also increase its own weight.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a coal mine vertical shaft skip hoist, including a hanger fixedly installed on a support frame driving device at the top by a rope, a group of limit grooves engaged with the upper limit blocks of the support frame are respectively provided on the left and right sides of the hanger, so that when the hanger moves up and down under the action of the driving device, it can maintain a relatively stable vertical state and is not prone to shaking, and a skip is provided in the inner cavity of the hanger, and the left side of the bottom end of the skip is pin-connected with the left side of the bottom of the inner cavity of the limit groove through a pin shaft, and a group of guide wheels are fixedly installed on the top of the left and right sides of the skip; a first connecting rod is pin-connected in the middle of one side of the bottom end of the hanger, and a second connecting rod is pin-connected at the other end of the first connecting rod, and the other end of the second connecting rod is pin-connected to one side of the bottom end of the skip. When the bucket does not flip over, there is a broken line between the first connecting rod and the second connecting rod, an ear seat is fixedly installed in the middle of the left side of the bottom end of the bucket, and a transmission shaft is movably sleeved inside the ear seat, and a plurality of impact balls are provided on the outer surface of the transmission shaft, a winding drum is fixedly sleeved in the middle of the outer surface of the transmission shaft, a steel wire rope is wound and connected to the outer surface of the winding drum, and the other end of the steel wire rope is fixedly connected to the pin joint between the first connecting rod and the second connecting rod, and then when the bucket flips, as the pin joint between the first connecting rod and the second connecting rod gradually moves away from the transmission shaft, the steel wire rope can be pulled to drive the winding drum and the transmission shaft to rotate, and drive the impact balls on the transmission shaft to impact the bottom end of the bucket, so that the bucket oscillates to prevent materials from adhering to its inner wall.

[0007] Furthermore, a disc spring is fixedly installed inside the ear seat, and the inner end of the disc spring is fixedly connected to the outer surface of the transmission shaft. Therefore, in the process of the bucket being transformed from a flipped state to a vertical state, as the tension of the first connecting rod and the second connecting rod on the wire rope decreases, the elastic force of the disc spring can drive the transmission shaft to rotate in the opposite direction and wind the wire rope around the winding drum.

[0008] Furthermore, the impact ball is fixedly connected to the outer surface of the transmission shaft via an elastic sheet, and the impact ball is made of hard rubber material. Therefore, the setting of the elastic sheet and the impact ball material can effectively reduce the impact damage caused by the impact ball to the bottom end of the bucket during rotation.

[0009] Furthermore, a plurality of the impact balls are evenly arranged on the outer surface of the transmission shaft, and every three impact balls are arranged in a group of circular arrays, while each group of impact balls is arranged in a linear array on the outer surface of the transmission shaft. Therefore, when the impact balls rotate, the frequency of the vibration impact generated on the bottom end of the bucket is more balanced, and the stability and reliability are higher.

[0010] Furthermore, the sum of the lengths between the first connecting rod and the second connecting rod is greater than the distance from the pin connection point between the first connecting rod and the hanger to the pin connection point between the second connecting rod and the bucket when the bucket is flipped to the maximum extent, thereby ensuring that when the bucket is flipped to unload, the pulling of the first connecting rod and the second connecting rod will not cause the degree of flipping of the bucket to be reduced, resulting in unclean unloading.

[0011] Furthermore, a piezoelectric sensor is provided on the right side of the bottom end of the bucket, and an electrical feedback connection is formed between the bucket and the driving device. When the bucket is turning over, the pressure between the bucket and the hanger becomes smaller, and the piezoelectric sensor is used to feedback to the driving device to reduce the speed at which the hanger and the bucket on it move upward, so as to effectively reduce the impact damage to the support frame caused by the excessive upward speed of the bucket when it is turning over under the action of the arc chute.

[0012] Furthermore, the height of the inner cavity of the hanger is greater than the distance from the pin connection point between the hanger and the bucket to the top end point on the right side of the bucket, thereby ensuring that when the bucket is flipped under the action of the guide wheel and the arc-shaped slide groove, there will be no interference between it and the inner cavity of the hanger.

[0013] The beneficial effects of the present invention are as follows:

[0014] The present application provides a coal mine vertical shaft skip hoist. With respect to the arrangement of the skip bottom structure, during the tipping process of the skip, as the pin joint between the first connecting rod and the second connecting rod gradually moves away from the transmission shaft, the steel wire rope can be pulled to drive the winding drum and the transmission shaft to rotate, and drive the impact ball on the transmission shaft to impact the bottom end of the skip, so that the skip vibrates to prevent wet materials from adhering to its inner wall. This improves the material transportation efficiency of the skip hoist and effectively reduces the ineffective work during the up and down movement and transportation, and has high stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 A side view of the structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the bottom structure of the present invention;

[0019] Figure 4 The structure of the present invention Figure 3 A magnified schematic diagram of point A;

[0020] Figure 5 It is a bottom view of the structure of the present invention.

[0021] In the figure: 1-hanging bracket, 2-limiting groove, 3-bucket, 4-guide wheel, 5-first connecting rod, 6-second connecting rod, 7-ear seat, 8-disc spring, 9-transmission shaft, 10-impact ball, 11-winding drum, 12-wire rope. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 , Figure 2 As shown, a coal mine vertical shaft skip hoist comprises a hanger 1 fixedly mounted on a support frame driving device through a rope at the top, and a group of limit slots 2 are respectively provided on the left and right sides of the hanger 1, which are clamped with the upper limit block of the support frame, so that when the hanger 1 moves up and down under the action of the driving device, it can maintain a relatively stable vertical state and is not prone to shaking, and a skip 3 is provided in the inner cavity of the hanger 1, and the left side of the bottom end of the skip 3 is pinned with the left side of the bottom of the inner cavity of the limit slot 2 through a pin shaft, and a group of guide wheels 4 are respectively fixedly mounted on the top of the left and right sides of the skip 3; and when the hanger 1 moves upward to the coal mine well, the guide wheels 4 can enter the arc-shaped chute located on the support frame, and under the guiding action of the arc-shaped chute, the skip 3 is turned over to unload the materials therein; and when the hanger 1 moves downward into the coal mine, under the action of the guide wheels 4 and the arc-shaped chute, the skip 3 can be transformed from the turned over state to the vertical state, so as to transport the materials deep into the coal mine, as shown in FIG. Figure 2 , Figure 3 as well as Figure 4As shown, a first connecting rod 5 is pinned in the middle of one side of the bottom end of the hanger 1, and a second connecting rod 6 is pinned in the other end of the first connecting rod 5, and the other end of the second connecting rod 6 is pinned to one side of the bottom end of the bucket 3, and when the bucket 3 is not overturned, a broken line is formed between the first connecting rod 5 and the second connecting rod 6, an ear seat 7 is fixedly installed in the middle of the left side of the bottom end of the bucket 3, and a transmission shaft 9 is movably sleeved in the inner part of the ear seat 7, and a plurality of impact balls 10 are provided on the outer surface of the transmission shaft 9, and a winding reel 11 is fixedly sleeved in the middle of the outer surface of the transmission shaft 9, A steel wire rope 12 is wound around the outer surface of the winding drum 11, and the other end of the steel wire rope 12 is fixedly connected to the pin joint between the first connecting rod 5 and the second connecting rod 6. When the bucket 3 is turned over, as the pin joint between the first connecting rod 5 and the second connecting rod 6 gradually moves away from the transmission shaft 9, the steel wire rope 12 can be pulled to drive the winding drum 11 and the transmission shaft 9 to rotate, and drive the impact ball 10 on the transmission shaft 9 to impact the bottom end of the bucket 3, so that the bucket 3 oscillates to prevent materials from adhering to its inner wall.

[0024] like Figure 4 As shown, in the present technical solution, a disc spring 8 is fixedly installed inside the ear seat 7, and the inner end of the disc spring 8 is fixedly connected to the outer surface of the transmission shaft 9, so that in the process of the bucket 3 being transformed from the flipping state to the vertical state, as the tension of the first connecting rod 5 and the second connecting rod 6 on the wire rope 12 is reduced, under the action of the elastic force of the disc spring 8, the transmission shaft 9 can be driven to rotate in the opposite direction, and the wire rope 12 can be wound around the winding drum 11.

[0025] like Figure 4 As shown, in the present technical solution, the impact ball 10 is fixedly connected to the outer surface of the transmission shaft 9 via an elastic sheet, and the impact ball 10 is made of hard rubber material. Therefore, the setting of the elastic sheet and the material of the impact ball 10 can effectively reduce the impact damage caused by the impact ball 10 to the bottom end of the bucket 3 during rotation.

[0026] like Figure 5 As shown, in the present technical solution, a plurality of impact balls 10 are evenly arranged on the outer surface of the transmission shaft 9, and every three impact balls 10 are arranged in a group of annular arrays, and each group of impact balls 10 are arranged in a linear array on the outer surface of the transmission shaft 9. Therefore, when the impact balls 10 rotate, the frequency of the vibration impact generated on the bottom end of the bucket 3 is more balanced, and the stability and reliability are higher.

[0027] In the present technical solution, the sum of the lengths between the first connecting rod 5 and the second connecting rod 6 is greater than the distance from the pin connection point between the first connecting rod 5 and the hanger 1 to the pin connection point between the second connecting rod 6 and the bucket 3 when the bucket 3 is flipped to the maximum extent, thereby ensuring that when the bucket 3 is flipped over to unload, the pulling of the first connecting rod 5 and the second connecting rod 6 will not cause the degree of flipping of the bucket 3 to be reduced, resulting in unclean unloading.

[0028] In the present technical solution, a piezoelectric sensor is provided on the right side of the bottom end of the bucket 3, and an electrical feedback connection is formed between the bucket 3 and the driving device. When the bucket 3 is turning over, the pressure between the bucket 3 and the hanger 1 becomes smaller, and the piezoelectric sensor is used to feedback to the driving device to reduce the speed at which the hanger 1 and the bucket 3 thereon are driven to move upward, so as to effectively reduce the impact damage to the support frame caused by the excessive upward speed of the bucket 3 when the bucket 3 is turning over under the action of the arc chute.

[0029] like Figure 2 As shown, in the present technical solution, the height of the inner cavity of the hanger 1 is greater than the distance from the pin connection point between the hanger 1 and the bucket 3 to the top end point on the right side of the bucket 3, thereby ensuring that when the bucket 3 is turned over under the action of the guide wheel 4 and the arc-shaped slide groove, there will be no interference between it and the inner cavity of the hanger 1.

[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coal mine vertical shaft skip hoist, comprising a hanger (1), wherein a group of limit grooves (2) are respectively provided on the left and right sides of the hanger (1), and a skip (3) is provided in the inner cavity of the hanger (1), and the left side of the bottom end of the skip (3) is pin-connected with the left side of the bottom of the inner cavity of the limit groove (2) through a pin shaft, and a group of guide wheels (4) are respectively fixedly installed on the top of the left and right sides of the skip (3), characterized in that: A first connecting rod (5) is pin-connected to the middle of one side of the bottom end of the hanger (1), and a second connecting rod (6) is pin-connected to the other end of the first connecting rod (5), and the other end of the second connecting rod (6) is pin-connected to one side of the bottom end of the bucket (3). An ear seat (7) is fixedly installed in the middle of the left side of the bottom end of the bucket (3), and a transmission shaft (9) is movably sleeved inside the ear seat (7), and a plurality of impact balls (10) are provided on the outer surface of the transmission shaft (9). A winding drum (11) is fixedly sleeved to the middle of the outer surface of the transmission shaft (9), and a steel wire rope (12) is wound around the outer surface of the winding drum (11), and the other end of the steel wire rope (12) is fixedly connected to the pin connection point between the first connecting rod (5) and the second connecting rod (6); When the bucket (3) turns over, as the pin joint between the first connecting rod (5) and the second connecting rod (6) gradually moves away from the transmission shaft (9), the wire rope (12) is pulled to drive the winding drum (11) and the transmission shaft (9) to rotate, and drive the impact ball (10) on the transmission shaft (9) to impact the bottom end of the bucket (3), so that the bucket (3) oscillates to prevent materials from adhering to its inner wall.

2. The coal mine vertical shaft skip hoist according to claim 1, characterized in that: A disc spring (8) is fixedly installed inside the ear seat (7), and the inner end of the disc spring (8) is fixedly connected to the outer surface of the transmission shaft (9).

3. The coal mine vertical shaft skip hoist according to claim 2, characterized in that: The impact ball (10) is fixedly connected to the outer surface of the transmission shaft (9) via an elastic sheet, and the impact ball (10) is made of hard rubber material.

4. The coal mine vertical shaft skip hoist according to claim 3, characterized in that: A plurality of impact balls (10) are evenly arranged on the outer surface of the transmission shaft (9), and every three impact balls (10) are arranged in a group of annular arrays, while each group of impact balls (10) is arranged in a linear array on the outer surface of the transmission shaft (9).

5. The coal mine vertical shaft skip hoist according to claim 1, characterized in that: The sum of the lengths between the first connecting rod (5) and the second connecting rod (6) is greater than the distance from the pin connection point between the first connecting rod (5) and the hanger (1) to the pin connection point between the second connecting rod (6) and the bucket (3) when the bucket (3) is flipped to the maximum extent.

6. The coal mine vertical shaft skip hoist according to claim 1, characterized in that: A piezoelectric sensor is provided on the right side of the bottom end of the bucket (3), and an electrical feedback connection is formed between the bucket and the driving device. When the bucket (3) is turning over, the pressure between the bucket (3) and the hanger (1) decreases, and the piezoelectric sensor is used to feed back to the driving device to reduce the speed at which the hanger (1) and the bucket (3) thereon are driven to move upward.

7. The coal mine vertical shaft skip hoist according to claim 1, characterized in that: The height of the inner cavity of the hanger (1) is greater than the distance from the pin connection point between the hanger (1) and the bucket (3) to the top end point of the right side of the bucket (3).

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