WO2024066888A1

WO2024066888A1 - Adjustable coal ore screening and conveying device

Info

Publication number: WO2024066888A1
Application number: PCT/CN2023/115844
Authority: WO
Inventors: 魏圣杰; 董帅; 刘建民; 孙涛; 郑树坤; 吴振宇; 李利刚; 崔荣华
Original assignee: 华能伊敏煤电有限责任公司
Priority date: 2022-09-30
Filing date: 2023-08-30
Publication date: 2024-04-04
Also published as: CN115583460A

Abstract

An adjustable coal ore screening and conveying device, comprising active conveying units (100) and intermediate connecting units (200). Two groups of active conveying units (100) are provided. Each active conveying unit (100) comprises a first supporting assembly (101), a rotating roller assembly (102) and driven rollers (104) working in concert with the first supporting assembly (101), and a drive adjustment member (103) working in concert with the rotation roller assembly (102). The intermediate connection units (200) each comprise an intermediate support (201) connected to two first supporting assemblies (101), and telescopic rods (202) hingedly connected to one of the first support assemblies (101) and the intermediate support (201). The device is provided with the two groups of active conveying units (100), one group of the active conveying units (100) can rotate, and coal ores are quickly moved backwards by means of gravity, so that the coal ores can be prevented from being stacked at the front end, and the screening efficiency is high.

Description

An adjustable coal mine screening and conveying device

Technical Field

The invention relates to the technical field of coal mine transportation, in particular to an adjustable coal mine screening and transportation device.

Background technique

At present, the existing coal transportation is to mine through mining machines, and then all the coal is transported to the factory for processing. However, since the mined coal is large and small, after being transported to the factory, it needs to be screened and then put into the crusher of corresponding specifications for crushing. The process is too cumbersome, and there are some larger coals that cannot be crushed by small-scale crushers at all and can only be thrown away, which greatly wastes transportation costs and causes unnecessary losses in manpower and financial resources.

Summary of the invention

The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

In view of the above-mentioned and/or existing problems in the existing adjustable coal mine screening and conveying devices, the present invention is proposed.

Therefore, the problem to be solved by the present invention is how to provide an adjustable coal mine screening and conveying device.

To solve the above technical problems, the present invention provides the following technical solutions: an adjustable coal mine screening and conveying device, comprising: an active conveying unit, including a first support assembly, a rotating roller assembly and a driven roller matched with the first support assembly, and a driving adjustment member matched with the rotating roller assembly; an intermediate connecting unit, including an intermediate support connecting two of the first supporting assemblies, and a telescopic rod hinged on one of the first supporting assemblies and the intermediate support; the driving adjustment member includes a cross rod connected to the rotating roller assembly, a first gear coaxially arranged with the rotating roller assembly, a second gear arranged between two adjacent first gears, a first slider arranged at the end of the rotating roller assembly, a second slider arranged at the end of the driven roller, and a chain connecting two adjacent second sliders, the two adjacent ends of the cross rod are hinged by a hinge shaft, the second gear is connected to the hinge shaft, and the second gear is simultaneously meshed with the two adjacent first gears, and the first slider with the smallest distance and the second slider are connected by a chain.

As a preferred solution of the adjustable coal mine screening and conveying device of the present invention, the first support assembly includes a movable support leg, a fixed support leg and a bearing bracket, the bearing bracket is hinged to the movable support leg or fixedly connected to the fixed support leg, and the driven roller arranged at the end of the bearing bracket is fixedly connected to the movable support leg. On the supporting bracket.

As a preferred solution of the adjustable coal mine screening and conveying device of the present invention, wherein: a first moving groove is arranged on the side of the bearing bracket, and the first sliding block and the second sliding block are both arranged in the bearing bracket.

As a preferred solution of the adjustable coal mine screening and conveying device of the present invention, one of the ends of the bearing bracket is hinged to the intermediate support, and the hinge shaft is coaxial with the driven roller arranged at the end.

As a preferred solution of the adjustable coal mine screening and conveying device described in the present invention, the driving and adjusting member also includes a first driving member that drives the rotating roller assembly to rotate, and a second driving member that drives the rotating roller assembly and the driven roller to move, the second driving member includes a motor fixed to the side of the supporting bracket, a threaded rod connected to the output end of the motor, a block threadably matched with the threaded rod, a rotating rod fixedly connected to the threaded rod, and a universal joint for connecting the two rotating rods, the block is fixedly connected to a first sliding block arranged at the end, the supporting bracket is provided with a second moving groove for the block to move, and the universal joint is arranged at the hinge axis between the supporting bracket and the intermediate support.

As a preferred embodiment of the adjustable coal mine screening and conveying device described in the present invention, the rotating roller assembly includes a first rotating roller and a second rotating roller, the first rotating roller and the second rotating roller are arranged alternately, the first rotating roller is provided with a first elliptical disk along its axial array, the second rotating roller is provided with a second elliptical disk along its axial array, and the first elliptical disk and the second elliptical disk are arranged alternately.

As a preferred solution of the adjustable coal mine screening and conveying device described in the present invention, the active conveying unit also includes a transmission assembly connecting the two rotating roller assemblies, the transmission assembly includes a third gear fixed on the rotating shaft of the first rotating roller, a fourth gear and a fifth gear fixed on the rotating shaft of the driven roller, a sixth gear fixed on the supporting bracket and meshing with the fourth gear and the first gear at the same time, a chain connecting the fifth gear and the third gear, and a tensioning wheel for keeping the chain taut, and the tensioning wheel is hinged on the supporting bracket.

As a preferred solution of the adjustable coal mine screening and conveying device of the present invention, the active conveying unit further includes a shielding plate fixedly connected to the bearing bracket.

As a preferred solution of the adjustable coal mine screening and conveying device of the present invention, the movable supporting leg includes a first support column, a second support column and a fastening bolt.

As a preferred embodiment of the adjustable coal mine screening and conveying device of the present invention, wherein: The support column and the second support column are slidably matched, and a plurality of first holes are vertically arranged on the first support column.

The beneficial effects of the present invention are as follows: two groups of active conveying units are provided, one of which is rotatable, and uses gravity to move the coal mine backwards quickly, which can prevent the coal mine from piling up at the front end, and the screening efficiency is higher.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

FIG. 1 is a structural diagram of an adjustable coal mine screening and conveying device.

Figure 2 is a structural diagram of the first support assembly of the adjustable coal mine screening and conveying device

FIG. 3 is a structural diagram of a second driving member of the adjustable coal mine screening and conveying device.

FIG. 4 is a schematic diagram of the first gear and the second gear of the adjustable coal mine screening and conveying device.

FIG. 5 is a structural diagram of the transmission assembly of the adjustable coal mine screening and conveying device.

FIG. 6 is a schematic diagram of the chain and articulated shaft of the adjustable coal mine screening and conveying device.

FIG. 7 is an overall structural diagram of the adjustable coal mine screening and conveying device after the shielding plate is installed.

Detailed ways

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

Example 1

1 to 7 , which are the first embodiment of the present invention, provide an adjustable coal mine screening and conveying device, the adjustable coal mine screening and conveying device comprises an active conveying unit 100 and an intermediate connecting unit 200, Two groups of active transport units 100 are provided, and the intermediate connection unit 200 connects the two groups of active transport units 100 .

Specifically, the active conveying unit 100 includes a first supporting assembly 101 , a rotating roller assembly 102 and a driven roller 104 cooperating with the first supporting assembly 101 , and a driving adjustment member 103 cooperating with the rotating roller assembly 102 .

The intermediate connection unit 200 includes an intermediate support 201 connecting two first support assemblies 101 , and a telescopic rod 202 hinged to one of the first support assemblies 101 and the intermediate support 201 .

The driving adjustment member 103 includes a cross rod 103a connected to the rotating roller assembly 102, a first gear 103b coaxially arranged with the rotating roller assembly 102, a second gear 103c arranged between two adjacent first gears 103b, a first slider 103d arranged at the end of the rotating roller assembly 102, a second slider 103f arranged at the end of the driven roller 104, and a chain 103h connecting two adjacent second sliders 103f. The two adjacent ends of the cross rods 103a are hinged by a hinge shaft 103e, the second gear 103c is connected to the hinge shaft 103e, and the second gear 103c is simultaneously meshed with the two adjacent first gears 103b, and the first slider 103d and the second slider 103f with the smallest distance are connected by the chain 103h.

It should be noted that when the distance between adjacent second sliders 103f is at the minimum value, the driven roller 104 can still rotate. When the distance between adjacent second sliders 103f is at the maximum value, the distance between adjacent driven rollers 104 is at the maximum. However, the maximum distance between adjacent driven rollers 104 is still smaller than the minimum distance between the first rotating roller 102a and the second rotating roller 102b.

It should be pointed out that most of the driven rollers 104 do not rotate, and they only play the role of intermediate support. Preferably, the driven rollers 104 may not be provided on the supporting bracket 101c that does not tilt.

The first support assembly 101 includes a movable support leg 101a, a fixed support leg 101b and a bearing bracket 101c. The bearing bracket 101c is hinged to the movable support leg 101a or fixedly connected to the fixed support leg 101b. The driven roller 104 disposed at the end of the bearing bracket 101c is fixedly connected to the bearing bracket 101c. A first moving groove 101c-1 is disposed on the side of the bearing bracket 101c. The first slider 103d and the second slider 103f are both disposed in the bearing bracket 101c.

Furthermore, one end of one of the supporting brackets 101c is hinged to the middle support 201, and the hinge axis is coaxial with the driven roller 104 disposed at the end.

The driving adjustment member 103 also includes a first driving member 103i that drives the rotating roller assembly 102 to rotate, and a second driving member 103j that drives the rotating roller assembly 102 and the driven roller 104 to move. The second driving member 103j includes a motor 103j-1 fixed to the side of the supporting bracket 101c, a threaded rod 103j-2 connected to the output end of the motor 103j-1, a block 103j-3 threadedly matched with the threaded rod 103j-2, and a block 103j-4 fixed to the threaded rod 103j-2. The first driving member 103i is a first driving member 103j-4 connected to the first and second driving members 103j-4, and a universal joint 103j-5 for connecting the two rotating rods 103j-4, the clamping block 103j-3 is fixedly connected to the first sliding block 103d arranged at the end, the supporting bracket 101c is provided with a second moving groove 101c-2 for the clamping block 103j-3 to move, and the universal joint 103j-5 is arranged at the hinge axis between the supporting bracket 101c and the intermediate support 201. In this embodiment, the first driving member 103i is a motor.

Furthermore, the rotating roller assembly 102 includes a first rotating roller 102a and a second rotating roller 102b. The first rotating roller 102a and the second rotating roller 102b are arranged alternately. The first rotating roller 102a is provided with a first elliptical disk 102a-1 along its axial array, and the second rotating roller 102b is provided with a second elliptical disk 102b-1 along its axial array. The first elliptical disk 102a-1 and the second elliptical disk 102b-1 are arranged alternately. The active conveying unit 100 also includes a transmission assembly 105 connecting the two rotating roller assemblies 102, the transmission assembly 105 includes a third gear 105a fixed on the rotating shaft of the first rotating roller 102a, a fourth gear 105b and a fifth gear 105c fixed on the rotating shaft of the driven roller 104, a sixth gear 105d fixed on the supporting bracket 101c and meshed with the fourth gear 105b and the first gear 103b at the same time, a chain 105e connecting the fifth gear 105c and the third gear 105a, and a tensioning wheel 105f for keeping the chain 105e taut, and the tensioning wheel 105f is hinged on the supporting bracket 101c.

The active transport unit 100 further includes a shielding plate 106, which is fixedly connected to the supporting bracket 101c, and the movable supporting leg 101a includes a first support 101a-1, a second support 101a-2 and a fastening bolt 102a-3. The first support 101a-1 and the second support 101a-2 are slidably matched, and a plurality of first holes 101a-11 are vertically arranged on the first support 101a-1.

When in use, the control motor 103j-1 drives the threaded rod 103j-2 to rotate, and drives the rotating roller assembly 102 to move through the block 103j-3. Under the action of the cross rod 103a, the distance between the first rotating roller 102a and the second rotating roller 102b in the rotating roller assembly 102 will remain constant. When the distance between the first rotating roller 102a and the second rotating roller 102b meets the requirement, the supporting bracket 101c on one side of the intermediate support 201 is rotated through the telescopic rod 202. The inclination of the supporting bracket 101c is adjusted according to the amount of coal falling on the rotating roller assembly 102 at the same time. If If the amount of coal dropped at the same time is small, the inclination of the supporting bracket 101c does not need to be too large. If the amount of coal dropped at the same time is large, the inclination of the supporting bracket 101c is slightly larger. After adjusting the inclination, the inclined supporting bracket 101c is fixed by lengthening the second pillar 101a-2 and fixing it by tightening the bolts 102a-3, and then the first driving member 103i is opened. Under the action of the first gear 103b, the second gear 103c and the transmission assembly 105, the rotating roller assembly 102 in the two groups of active conveying units 100 is driven to rotate to realize the transportation and screening of coal.

It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention. The present invention has been described in detail according to the preferred embodiments. Those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

An adjustable coal mine screening and conveying device, characterized in that it comprises:

An active conveying unit (100) comprises a first supporting assembly (101), a rotating roller assembly (102) and a driven roller (104) matched with the first supporting assembly (101), and a driving adjustment member (103) matched with the rotating roller assembly (102);

An intermediate connection unit (200) comprises an intermediate support (201) connecting the two first support assemblies (101), and a telescopic rod (202) hingedly connected to one of the first support assemblies (101) and the intermediate support (201);

The driving adjustment member (103) comprises a cross rod (103a) connected to the rotating roller assembly (102), a first gear (103b) coaxially arranged with the rotating roller assembly (102), a second gear (103c) arranged between two adjacent first gears (103b), a first slider (103d) arranged at the end of the rotating roller assembly (102), a second slider (103f) arranged at the end of the driven roller (104), and a chain (103h) connecting two adjacent second sliders (103f), wherein the two adjacent ends of the cross rod (103a) are hinged by a hinge shaft (103e), the second gear (103c) is connected to the hinge shaft (103e), and the second gear (103c) is simultaneously meshed with the two adjacent first gears (103b), and the first slider (103d) and the second slider (103f) with the smallest distance are connected by a chain (103h).
The adjustable coal mine screening and conveying device as described in claim 1 is characterized in that: the first support assembly (101) includes a movable support leg (101a), a fixed support leg (101b) and a bearing bracket (101c), the bearing bracket (101c) is hinged to the movable support leg (101a) or fixedly connected to the fixed support leg (101b), and the driven roller (104) arranged at the end of the bearing bracket (101c) is fixedly connected to the bearing bracket (101c).
The adjustable coal mine screening and conveying device as described in claim 2 is characterized in that a first movable groove (101c-1) is arranged on the side of the bearing bracket (101c), and the first slider (103d) and the second slider (103f) are both arranged in the bearing bracket (101c).
The adjustable coal mine screening and conveying device as described in claim 3 is characterized in that one end of the supporting bracket (101c) is hinged on the intermediate support (201), and the hinge axis is coaxial with the driven roller (104) arranged at the end.
The adjustable coal mine screening and conveying device according to claim 3 or 4 is characterized in that: the driving adjustment member (103) further includes a first driving member (103i) for driving the rotating roller assembly (102) to rotate, and a second driving member (103j) for driving the rotating roller assembly (102) and the driven roller (104) to move, The second driving member (103j) comprises a motor (103j-1) fixed to the side of the supporting bracket (101c), a threaded rod (103j-2) connected to the output end of the motor (103j-1), a clamping block (103j-3) threadedly matched with the threaded rod (103j-2), a rotating rod (103j-4) fixedly connected to the threaded rod (103j-2), and a universal joint (103j-5) for connecting the two rotating rods (103j-4), the clamping block (103j-3) being fixedly connected to a first sliding block (103d) arranged at an end, a second movable groove (101c-2) for the clamping block (103j-3) to move is arranged on the supporting bracket (101c), and the universal joint (103j-5) is arranged at the hinge axis between the supporting bracket (101c) and the intermediate support (201).
The adjustable coal mine screening and conveying device as described in claim 5 is characterized in that: the rotating roller assembly (102) includes a first rotating roller (102a) and a second rotating roller (102b), the first rotating roller (102a) and the second rotating roller (102b) are arranged alternately, the first rotating roller (102a) is provided with a first elliptical disk (102a-1) along its axial array, the second rotating roller (102b) is provided with a second elliptical disk (102b-1) along its axial array, and the first elliptical disk (102a-1) and the second elliptical disk (102b-1) are arranged alternately.
The adjustable coal mine screening and conveying device as described in claim 6 is characterized in that: the active conveying unit (100) also includes a transmission assembly (105) connecting the two rotating roller assemblies (102), and the transmission assembly (105) includes a third gear (105a) fixed on the rotating shaft of the first rotating roller (102a), a fourth gear (105b) and a fifth gear (105c) fixed on the rotating shaft of the driven roller (104), a sixth gear (105d) fixed on the supporting bracket (101c) and meshed with the fourth gear (105b) and the first gear (103b) at the same time, a chain (105e) connecting the fifth gear (105c) and the third gear (105a), and a tensioning wheel (105f) for keeping the chain (105e) taut, and the tensioning wheel (105f) is hinged on the supporting bracket (101c).
The adjustable coal mine screening and conveying device according to claim 6 or 7 is characterized in that: the active conveying unit (100) further includes a shielding plate (106) fixedly connected to the bearing bracket (101c).
The adjustable coal mine screening and conveying device according to claim 8 is characterized in that the movable supporting leg (101a) includes a first support column (101a-1), a second support column (101a-2) and a fastening bolt (102a-3).
The adjustable coal mine screening and conveying device according to claim 9 is characterized in that: the first pillar (101a-1) and the second pillar (101a-2) are slidably matched, and a plurality of first holes (101a-11) are vertically arranged on the first pillar (101a-1).