Efficient coal breaking device for coal face

Abstract

The utility model discloses an efficient coal breaking device for a coal face, and belongs to the technical field of coal mining. The coal breaking device comprises a breaking groove, the top of the breaking groove communicates with a feeding port, the back face of the feeding port is fixedly connected with an L-shaped fixing strip, and the L-shaped fixing strip is provided with a reciprocating dredging mechanism; the reciprocating dredging mechanism comprises two limiting sleeves and a first motor. The ends, opposite to the L-shaped fixing strip, of the two limiting sleeves are sleeved with sliding connection strips. The sliding connection strip is fixedly connected with two transmission shafts. The sliding connecting strip is fixedly connected with an L-shaped connecting strip, the bottom of the L-shaped connecting strip is fixedly connected with a dredging scraping head, the output end of the first motor is fixedly connected with a three-edge rotating strip, and the three-edge rotating strip rotates to drive the two transmission shafts to reciprocate up and down. The reciprocating dredging mechanism is arranged to scrape and dredge the inner wall of the feeding port, the residue phenomenon is reduced, large coal briquettes are preliminarily scattered, the coal briquettes can be effectively prevented from being accumulated and agglomerated at the feeding port, and therefore the blocking phenomenon is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mining technical field, concretely is a kind of coal mining working face efficient coal breaking device. BACKGROUND

[0002] Coal is due to the change of crust, constantly buried underground, long-term isolation from air, and under high temperature and high pressure, through a series of complex physical and chemical changes and other factors, the black combustible sedimentary rock, is the most abundant fossil fuel on earth, the most widely distributed region. The elements that constitute the organic matter of coal mainly include carbon, hydrogen, oxygen, nitrogen and sulfur, etc., in addition, there are also a small amount of phosphorus, fluorine, chlorine and arsenic elements. Coal mine is the reasonable space that human excavates when excavating the geological layer rich in coal, usually including roadway, well and mining face, etc.

[0003] In the process of coal mining, roof broken, coal wall spalling and other safety hazards occur from time to time, which seriously threatens the life safety of production personnel and the safe operation of equipment. The coal breaking device helps to reduce the incidence of safety accidents by breaking effect and reducing the production of large coal blocks. However, in the process of breaking coal, part of the coal blocks may be left in the feed inlet or the inner wall of the breaking device due to adhesion, jamming and other reasons, affecting the breaking efficiency and subsequent transportation. After a long time of operation, the feed inlet may be blocked due to coal block accumulation, caking and other reasons, affecting the normal entry and breaking of coal blocks. CONTENT OF THE UTILITY MODEL

[0004] In view of the problem that coal blocks are easy to be left in the feed inlet in the existing coal breaking process, the utility model discloses a kind of coal mining working face efficient coal breaking device to solve the above problems.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of coal mining working face efficient coal breaking device, including breaking groove, the top of breaking groove is connected with feed inlet, the back of feed inlet is fixedly connected with L type fixed strip, L type fixed strip is provided with reciprocating dredging mechanism;Reciprocating dredging mechanism includes two limit sleeves and first motor, two limit sleeves and first motor are all fixedly connected on L type fixed strip, two limit sleeves are relative to the end of L type fixed strip and are provided with sliding strip;Sliding strip can vertically slide in the limit sleeve of L type fixed strip;Sliding strip is fixedly connected with two transmission shafts;Sliding strip is fixedly connected with L type connecting strip, the bottom of L type connecting strip is fixedly connected with dredging scraping head, the output end of first motor is fixedly connected with three edge rotating strips, the rotation of three edge rotating strips drives two transmission shafts to reciprocate up and down.

[0007] Further, the rotating crushing mechanism is arranged on the crushing groove, the rotating crushing mechanism comprises a plurality of grid bars and a second motor, the plurality of grid bars are fixedly connected to the inner wall of the crushing groove, the second motor is fixedly connected to one side of the crushing groove, the output end of the second motor is fixedly connected with a rotating shaft, the rotating shaft is rotatably arranged in the crushing groove, and the outer surface of the rotating shaft is fixedly connected with a plurality of crushing bars.

[0008] Further, the dredging scraping head is matched with the inner wall of the feed inlet, and the feed inlet is fixedly connected with a sliding plate.

[0009] Further, the two sides of the crushing groove are fixedly connected with connecting plates, and the bottom of each connecting plate is fixedly connected with a moving wheel device.

[0010] Further, one side of the crushing groove is fixedly connected with a T-shaped fixed plate, the front surface of the T-shaped fixed plate is fixedly connected with a mechanical arm, the front surface of the mechanical arm is provided with a coal cutter device body, and the coal cutter device body is located above the feed inlet. The coal cutter device body is electrically connected with an external power supply and is controlled by an external program, and the function is to transfer the crushed coal blocks to the crushing groove through the feed inlet.

[0011] Further, the moving wheel device is arranged in four and arranged in a rectangular array at the bottom of the two connecting plates. The moving wheel device is a directional wheel, which can make the whole equipment steadily advance along the working direction to work.

[0012] The utility model discloses a coal block crushing device which is used in cooperation with a coal block conveying device.

[0013] The utility model has the advantages of:

[0014] (1) the utility model discloses a reciprocating dredging mechanism is arranged, and the inner wall of the feed inlet is scraped and dredged, and the residual coal block is scraped down, and the residual phenomenon is reduced, and the large coal block is preliminarily scattered, which can effectively prevent the coal block from accumulating and caking at the feed inlet, thereby avoiding the occurrence of the blocking phenomenon, and ensuring that the coal block smoothly enters the crushing device.

[0015] (2) the utility model discloses a rotating crushing mechanism, which can continuously crush and scatter coal blocks, and the adaptive design of the crushing bars and the grid bars can ensure that the coal blocks are subjected to uniform and sufficient crushing force during the crushing process, and the same crushing force can improve the crushing efficiency. DRAWINGS

[0016] In order to make the technical scheme of the utility model more clear, the following will briefly introduce the drawings needed to be used in the description, obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Figure 2 It is the structural schematic diagram of the utility model broken groove.

[0019] Figure 3 It is the structural schematic diagram of the utility model reciprocating dredging mechanism.

[0020] Figure 4 It is the structural schematic diagram of the utility model rotary broken mechanism.

[0021] In the drawing, 1-broken groove;2-feeding port;3-L type fixed strip;4-reciprocating dredging mechanism;41-limiting sleeve;42-first motor;43-sliding connection strip;44-transmission shaft;45-L type connecting strip;46-dredging scraping head;47-three edge rotating strip;5-rotary broken mechanism;51-lattice strip;52-second motor;53-rotating shaft;54-broken strip;6-sliding plate;7-connecting plate;8-moving wheel device;9-T type fixed plate;10-machine arm;11-coal cutter device body. Specific embodiments

[0022] In order to make the technical scheme of the utility model more clear, the following will briefly introduce the drawings needed to be used in the description, obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0023] Embodiment 1

[0024] The utility model provides a kind of high-efficiency coal breaking device of coal face, including broken groove 1, the top of broken groove 1 is connected with feed inlet 2, the back of feed inlet 2 is fixedly connected with L type fixed strip 3, the front of L type fixed strip 3 is provided with reciprocating dredging mechanism 4;Reciprocating dredging mechanism 4 includes two limit sleeves 41 and first motor 42, two limit sleeves 41 and first motor 42 are fixedly connected on L type fixed strip 3, one end of two limit sleeves 41 is sleeved with sliding strip 43 relative to L type fixed strip 3;Sliding strip 43 can vertically slide in the limit sleeve 41 of L type fixed strip 3;Sliding strip 43 is fixedly connected with two transmission shafts 44;Sliding strip 43 is fixedly connected with L type connecting strip 45, the bottom of L type connecting strip 45 is fixedly connected with dredging scraping head 46, the output of first motor 42 is fixedly connected with three edge rotating strip 47, and the rotation of three edge rotating strip 47 drives two transmission shafts 44 to reciprocate up and down.

[0025] Example 2

[0026] The utility model provides a kind of high-efficiency coal breaking device of coal face, including broken groove 1, the top of broken groove 1 is connected with feed inlet 2, the back of feed inlet 2 is fixedly connected with L type fixed strip 3, the front of L type fixed strip 3 is provided with reciprocating dredging mechanism 4;Reciprocating dredging mechanism 4 includes two limit sleeves 41 and first motor 42, two limit sleeves 41 and first motor 42 are fixedly connected on L type fixed strip 3, one end of two limit sleeves 41 is sleeved with sliding strip 43 relative to L type fixed strip 3;Sliding strip 43 can vertically slide in the limit sleeve 41 of L type fixed strip 3;Sliding strip 43 is fixedly connected with two transmission shafts 44;Sliding strip 43 is fixedly connected with L type connecting strip 45, the bottom of L type connecting strip 45 is fixedly connected with dredging scraping head 46, the inner wall between dredging scraping head 46 and feed inlet 2 is compatible, and feed inlet 2 is fixedly connected with sliding material plate 6;The output of first motor 42 is fixedly connected with three edge rotating strip 47, and the rotation of three edge rotating strip 47 drives two transmission shafts 44 to reciprocate up and down;Broken groove 1 is provided with rotary crushing mechanism 5, and rotary crushing mechanism 5 includes a plurality of grid bars 51 and second motor 52, a plurality of grid bars 51 are fixedly connected on the inner wall of broken groove 1, second motor 52 is fixedly connected on one side of broken groove 1, the output of second motor 52 is fixedly connected with rotating shaft 53, and rotating shaft 53 is rotationally arranged in the inside of broken groove 1, and the outer surface of rotating shaft 53 is fixedly connected with a plurality of crushing strips 54.The bottom of both sides of broken groove 1 is fixedly connected with connecting plate 7, and the bottom of two connecting plates 7 is fixedly connected with mobile wheel device 8;Mobile wheel device 8 is provided with four, and is distributed in the bottom of two connecting plates 7 in rectangular array type;One side of broken groove 1 is fixedly connected with T type fixed plate 9, the front of T type fixed plate 9 is fixedly connected with machine arm 10, the front of machine arm 10 is provided with coal cutter device body 11, and coal cutter device body 11 is located above feed inlet 2.

[0027] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency coal crushing device for a coal mining face, comprising a crushing trough, the top of which is connected to a feed inlet, characterized in that, An L-shaped fixing strip is fixedly connected to the back of the feed inlet. The L-shaped fixing strip is equipped with a reciprocating unblocking mechanism. The reciprocating unblocking mechanism includes two limiting sleeves and a first motor. The two limiting sleeves and the first motor are fixedly connected to the L-shaped fixing strip. A sliding strip is fitted onto one end of the two limiting sleeves relative to the L-shaped fixing strip. The sliding strip can slide vertically within the limiting sleeves of the L-shaped fixing strip. Two drive shafts are fixedly connected to the sliding strip. An L-shaped connecting strip is fixedly connected to the sliding strip. An unblocking scraper is fixedly connected to the bottom of the L-shaped connecting strip. A three-sided rotating strip is fixedly connected to the output end of the first motor. The rotation of the three-sided rotating strip drives the two drive shafts to reciprocate up and down.

2. The high-efficiency coal breaking device for a coal mining face as described in claim 1, characterized in that, The crushing trough is equipped with a rotating crushing mechanism, which includes multiple grid bars and a second motor. The multiple grid bars are fixedly connected to the inner wall of the crushing trough, and the second motor is fixedly connected to one side of the crushing trough. The output end of the second motor is fixedly connected to a rotating shaft, which is rotatably installed inside the crushing trough. Multiple crushing bars are fixedly connected to the outer surface of the rotating shaft.

3. The high-efficiency coal breaking device for a coal mining face as described in claim 1, characterized in that, The scraper head and the inner wall of the feed inlet are compatible, and the feed inlet is fixedly connected to a sliding plate.

4. The high-efficiency coal breaking device for a coal mining face as described in claim 1, characterized in that, Both sides of the bottom of the crushing trough are fixedly connected to connecting plates, and the bottom of both connecting plates is fixedly connected to a moving wheel device.

5. The high-efficiency coal breaking device for a coal mining face as described in claim 1, characterized in that, A T-shaped fixing plate is fixedly connected to one side of the crushing trough. A machine arm is fixedly connected to the front of the T-shaped fixing plate. The main body of the coal cutter is set on the front of the machine arm and is located above the feed inlet.

6. The high-efficiency coal breaking device for a coal mining face as described in claim 4, characterized in that, There are four movable wheels, which are arranged in a rectangular array at the bottom of the two connecting plates.

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