Coal crushing device for mining detection

Abstract

The utility model relates to the technical field of coal detection, in particular to a coal crushing device for mining detection, which comprises a rack, a material guiding mechanism for guiding crushed coal particles out and a crushing mechanism for extruding and crushing coal. The crushing cylinder is alternately overturned in a reciprocating mode through a rack frame and a gear ring by means of front-back movement of a crushing plate frame, so that coal particles extruded and crushed in the crushing cylinder are screened out, and meanwhile, a first shearing frame and a second shearing frame can get away from or get close to each other along with the action of the crushing plate frame; and then a first shearing frame and a second shearing frame drive a pressing disc assembly and a pressing sleeve assembly to be close to or far away from each other, then coal in the crushing barrel is extruded and crushed, and in addition, two arc-shaped fixing strips can be shifted to be far away from each other so that a proper arc-shaped sieve plate can be rapidly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal detection, in particular to a coal crushing device for mining detection. Background Art

[0002] After searching the patent document with announcement number CN108120627B, the first linear drive is used to move the pressing plate downward to press and crush the coal in the sample barrel, and then the pressing plate is moved upward, and the second linear drive drives the support plate downward, so that the movable seat first moves downward to a position where the inner support rod is separated from the filter hole of the feeding plate and its top end is flush with the upper surface of the guide plate, and then the crushed coal is screened through the filter hole, and the unqualified coal can be crushed again later, and then the second linear drive drives the support plate downward again, and the support plate drives the connecting sleeve at one end of the first shaft rod of the movable seat away from the guide plate to move downward, so as to realize the synchronous tilting of the guide plate and the movable seat, and the coal debris on the guide plate slides into the receiving barrel;

[0003] When screening the crushed coal, the patent document requires that the entire crushing process be stopped before screening can be carried out. At the same time, when exporting qualified coal fragments, the entire crushing process cannot be operated. If secondary crushing is required, it is necessary to wait for the moving seat to move upward and reset before proceeding. This undoubtedly reduces the entire coal crushing speed. In addition, the entire crushing structure requires the cooperation of multiple linear drives to complete, which will make the entire crushing device very large. In addition, when separating coal fragments of different specifications, many parts need to be replaced in the above structure, which will increase the difficulty of the entire operation and is very inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a coal crushing device for mining detection in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A coal crushing device for mining inspection comprises a frame, a material guide mechanism for guiding crushed coal particles out, and a crushing mechanism for extruding and crushing coal;

[0007] The material guiding mechanism includes a crushing cylinder, both ends of which are rotatably connected to the upper side of the frame, a driving mechanism for driving the crushing mechanism to move is provided on the lower side of the crushing cylinder, two symmetrical arc-shaped notches are provided on the outer side of the crushing cylinder, and an arc-shaped screen plate is provided in each arc-shaped notch, and arc-shaped fixing bars for fixing the arc-shaped screen plate are provided on both sides of each arc-shaped screen plate, and a feeding hopper for feeding coal into the crushing cylinder is provided on the upper side of the two arc-shaped screen plates;

[0008] The crushing mechanism is composed of a pressure plate assembly and a pressure sleeve assembly, and both the pressure plate assembly and the pressure sleeve assembly are located inside the crushing cylinder, and the pressure plate assembly and the pressure sleeve assembly are symmetrically arranged with each other;

[0009] The pressure plate assembly comprises a first crushing jaw plate, a second crushing jaw plate is sleeved on the inner side of the first crushing jaw plate, and a third crushing jaw plate is sleeved on the inner side of the second crushing jaw plate;

[0010] The pressing sleeve assembly comprises a first crushing jaw sleeve, a second crushing jaw sleeve is sleeved inside the first crushing jaw sleeve, a third crushing jaw sleeve is sleeved inside the second crushing jaw sleeve, and a push rod frame is slidably connected to the center position of the third crushing jaw sleeve.

[0011] Preferably: a sealing plate for preventing coal from flying out is inserted on one side of the feed hopper, and slide grooves are provided on both sides of the crushing cylinder at the positions of the arc-shaped screen plate, and the arc-shaped fixing strips are slidably connected with the slide grooves.

[0012] Preferably, the first crushing jaw disc corresponds to the first crushing jaw sleeve, the second crushing jaw disc corresponds to the second crushing jaw sleeve, and the third crushing jaw disc corresponds to the third crushing jaw sleeve.

[0013] Preferably: the outer edge and inner edge of the second crushing jaw disc are respectively provided with a first return spring for pushing the first crushing jaw disc and the third crushing jaw disc, and the outer edge and inner edge of the second crushing jaw sleeve are respectively provided with a second return spring for pushing the first crushing jaw sleeve and the third crushing jaw sleeve.

[0014] Preferably: the driving mechanism includes a crushing plate frame, rack frames are fixed at both sides of the top of the crushing plate frame, each rack frame is meshed with a gear ring for driving the crushing barrel to rotate, a hydraulic cylinder for driving it to move back and forth is provided at the bottom of the crushing plate frame, a first shearing frame and a second shearing frame passing through both sides of the frame are respectively provided at both sides of the bottom of the crushing plate frame, a guide seat is provided at the ends of the first shearing frame and the second shearing frame close to each other, and two guide grooves with a V-shaped structure are provided on the crushing plate frame.

[0015] Preferably, a plurality of thin support rods for driving the first crushing jaw sleeve to move are fixed to the upper end of the first shearing frame, and a thick support rod for driving the first crushing jaw disc to move is fixed to the upper end of the second shearing frame.

[0016] The beneficial effects compared with the prior art are as follows: the forward and backward movement of the crushing plate frame is utilized to allow the crushing barrel to be alternately flipped back and forth through the rack frame and the gear ring, thereby screening out the coal particles squeezed and crushed inside the crushing barrel, and at the same time, the first shearing frame and the second shearing frame will also move away from or closer to each other following the movement of the crushing plate frame, and then the pressure plate assembly and the pressure sleeve assembly are driven to move closer to or away from each other through the first shearing frame and the second shearing frame, and then the coal inside the crushing barrel is squeezed and crushed. In addition, the appropriate arc screen plate can be quickly replaced by moving the two arc fixing bars away from each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of a coal crushing device for mining detection according to the present invention;

[0019] Figure 2 is a front view of a coal crushing device for mining detection according to the present invention;

[0020] Figure 3 is a side view of a coal crushing device for mining detection according to the present invention;

[0021] Figure 4 is Figure 3 a cross-sectional view taken along line A-A in;

[0022] Figure 5 is Figure 2 a cross-sectional view taken along line C-C in;

[0023] Figure 6 is a schematic structural diagram of the crushing cylinder of a coal crushing device for mining detection according to the present invention;

[0024] Figure 7 is a schematic structural diagram of the first shearing frame, the second shearing frame and the crushing plate frame of a coal crushing device for mining detection according to the present invention;

[0025] Figure 8 is a schematic structural diagram of the pounding mechanism of a coal crushing device for mining detection according to the present invention;

[0026] Figure 9 is Figure 3 a cross-sectional view taken along line F-F in;

[0027] Figure 10 is Figure 9 a partial enlarged view at G in;

[0028] Figure 11 is a schematic structural diagram of the arc-shaped sieve plate and two arc-shaped fixing strips of a coal crushing device for mining detection according to the present invention;

[0029] Figure 12 is an exploded view of the pressing plate assembly of a coal crushing device for mining detection according to the present invention;

[0030] Figure 13 It is an exploded view of a compression sleeve assembly of a coal crushing device for mining detection described in the utility model.

[0031] The following are the descriptions of the reference numerals:

[0032] 1. Driving mechanism; 2. Material guiding mechanism; 3. Mashing mechanism; 4. Frame; 11. Crushing plate frame; 12. Hydraulic cylinder; 13. First shredding frame; 131. Thin support rod; 14. Second shredding frame; 141. Thick support rod; 15. Rack frame; 16. Gear ring; 21. Crushing cylinder; 22. Feed hopper; 23. Arc sieve plate; 24. Arc fixing strip; 25. Closing plate; 31. First shredding jaw; 32. Second shredding jaw; 33. Third shredding jaw; 34. First shredding jaw sleeve; 35. Second shredding jaw sleeve; 36. Third shredding jaw sleeve; 37. Push rod frame. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] The utility model is further described below in conjunction with the accompanying drawings:

[0035] like Figures 1 - 13 As shown, a coal crushing device for mining inspection includes a frame 4, a material guide mechanism 2 for guiding the crushed coal particles out, and a crushing mechanism 3 for squeezing and crushing the coal;

[0036] In this embodiment: The material guiding mechanism 2 includes a crushing cylinder 21. Both ends of the crushing cylinder 21 are rotatably connected to the upper side of the frame 4. A driving mechanism 1 for driving the crushing mechanism 3 to move is provided below the crushing cylinder 21. Two symmetrical arc-shaped notches are provided on the outer side of the crushing cylinder 21, and an arc-shaped sieve plate 23 is provided in each arc-shaped notch. Arc-shaped fixing strips 24 for fixing it are provided on both sides of each arc-shaped sieve plate 23. A feed hopper 22 for feeding coal into the crushing cylinder 21 is provided above the two arc-shaped sieve plates 23. A sealing plate 25 for preventing coal from flying out is inserted on one side of the feed hopper 22. Sliding grooves are formed at the positions on both sides of the crushing cylinder 21 where the arc-shaped sieve plates 23 are located. The arc-shaped fixing strips 24 are slidably connected to the sliding grooves. The driving mechanism 1 drives the crushing cylinder 21 to reciprocally rotate back and forth with the upper end of the frame 4 as the center, so as to screen out the coal particles crushed and extruded inside the crushing cylinder 21 through the arc-shaped sieve plates 23. In addition, the two arc-shaped fixing strips 24 can be pushed to both sides simultaneously to make them disengage from the clamping and fixing of the arc-shaped sieve plates 23, so as to take out the arc-shaped sieve plates 23, and then it is convenient to replace the arc-shaped sieve plates 23.

[0037] In this embodiment: The crushing mechanism 3 is composed of a pressure plate assembly and a pressure sleeve assembly. Both the pressure plate assembly and the pressure sleeve assembly are located inside the crushing cylinder 21, and the pressure plate assembly and the pressure sleeve assembly are symmetrically arranged with each other. The pressure plate assembly includes a first crushing jaw plate 31, a second crushing jaw plate 32 is sleeved inside the first crushing jaw plate 31, and a third crushing jaw plate 33 is sleeved inside the second crushing jaw plate 32;The pressing sleeve assembly includes a first crushing jaw sleeve 34. A second crushing jaw sleeve 35 is sleeved inside the first crushing jaw sleeve 34. A third crushing jaw sleeve 36 is sleeved inside the second crushing jaw sleeve 35. A push rod frame 37 is slidably connected to the central position of the third crushing jaw sleeve 36. The first crushing jaw plate 31 corresponds to the first crushing jaw sleeve 34, the second crushing jaw plate 32 corresponds to the second crushing jaw sleeve 35, and the third crushing jaw plate 33 corresponds to the third crushing jaw sleeve 36. First return springs for pushing the first crushing jaw plate 31 and the third crushing jaw plate 33 are respectively provided at the outer edge and the inner edge of the second crushing jaw plate 32. Second return springs for pushing the first crushing jaw sleeve 34 and the third crushing jaw sleeve 36 are respectively provided at the outer edge and the inner edge of the second crushing jaw sleeve 35. By moving the first crushing jaw sleeve 34, the second crushing jaw sleeve 35 and the third crushing jaw sleeve 36 are driven to move simultaneously towards the middle position of the crushing cylinder 21. At the same time, the first crushing jaw plate 31 drives the second crushing jaw plate 32 and the third crushing jaw plate 33 to also move simultaneously towards the middle position of the crushing cylinder 21. Then, the first crushing jaw plate 31 cooperates with the first crushing jaw sleeve 34, the second crushing jaw plate 32 cooperates with the second crushing jaw sleeve 35, and the third crushing jaw plate 33 cooperates with the third crushing jaw sleeve 36. Subsequently, the coal is sheared and crushed at the edge where the pressing plate assembly and the pressing sleeve assembly cooperate with each other. Then, the driving mechanism 1 drives the pressing plate assembly and the pressing sleeve assembly to move away from each other. When the first crushing jaw sleeve 34 moves in a reset manner, the second crushing jaw sleeve 35 and the third crushing jaw sleeve 36 are driven to move following the first crushing jaw sleeve 34 by the action of the two groups of second return springs. When one end of the push rod frame 37 at the center of the third crushing jaw sleeve 36 abuts against one side of the frame 4, the coal particles at the center of the third crushing jaw sleeve 36 are pushed out by the continued movement of the first crushing jaw sleeve 34. As the first crushing jaw sleeve 34 continues to move, at this time, the end of the third crushing jaw sleeve 36 abuts against one side of the frame 4. Then, the coal particles inside the second crushing jaw sleeve 35 are pushed out by the sliding of the third crushing jaw sleeve 36 inside the second crushing jaw sleeve 35. By repeating the above actions, the second crushing jaw sleeve 35 pushes out the coal particles inside the first crushing jaw sleeve 34. At the same time, when the first crushing jaw plate 31 moves in a reset manner, the second crushing jaw plate 32 and the third crushing jaw plate 33 are driven to move synchronously by the action of the first return spring. Then, when the first crushing jaw plate 31 abuts against the other side of the frame 4, as the second crushing jaw plate 32 continues to move, the coal outside the second crushing jaw plate 32 is scraped by the first crushing jaw plate 31. By repeating the above steps, when the second crushing jaw plate 32 also abuts against the other side of the frame 4, as the third crushing jaw plate 33 continues to move, the coal outside the third crushing jaw plate 33 is scraped by the second crushing jaw plate 32. Then, one-time extrusion and crushing of the coal is completed.

[0038] In this embodiment: The driving mechanism 1 includes a crushing plate frame 11. On both sides of the top of the crushing plate frame 11, rack frames 15 are fixedly installed. On the upper side of each rack frame 15, a gear ring 16 for driving the crushing cylinder 21 to rotate is engaged. At the bottom of the crushing plate frame 11, a hydraulic cylinder 12 for driving it to move back and forth is provided. On both sides of the bottom of the crushing plate frame 11, a first shearing frame 13 and a second shearing frame 14 passing through both sides of the frame 4 are respectively provided. At one end where the first shearing frame 13 and the second shearing frame 14 are close to each other, a guiding seat is provided, and two V-shaped guiding grooves are formed on the crushing plate frame 11. At the upper end of the first shearing frame 13, a plurality of thin support rods 131 for driving the first crushing jaw sleeve 34 to move are fixedly installed. At the upper end of the second shearing frame 14, a thick support rod 141 for driving the first crushing jaw plate 31 to move is fixedly installed. The hydraulic cylinder 12 drives the crushing plate frame 11 to move back and forth. At the same time, the two rack frames 15 on the crushing plate frame 11 are engaged with the two gear rings 16 on the crushing cylinder 21, so as to drive the crushing cylinder 21 to perform forward and backward flipping when the crushing plate frame 11 moves back and forth. In addition, during the movement of the crushing plate frame 11, the guiding seats on the first shearing frame 13 and the second shearing frame 14 will slide in the V-shaped guiding grooves of the crushing plate frame 11, so that the first shearing frame 13 and the second shearing frame 14 approach or move away from each other. During this process, the first shearing frame 13 drives the first crushing jaw sleeve 34 to reciprocate inside the crushing cylinder 21, and at the same time, the second shearing frame 14 drives the first crushing jaw plate 31 to reciprocate inside the crushing cylinder 21.

[0039] Working principle: When in use, first, the hydraulic cylinder 12 drives the crushing plate frame 11 to move back and forth. At the same time, the two rack frames 15 on the crushing plate frame 11 are engaged with the two gear rings 16 on the crushing cylinder 21, so as to drive the crushing cylinder 21 to perform forward and backward reciprocating flipping with the upper end of the frame 4 as the center when the crushing plate frame 11 moves back and forth, so as to screen out the coal particles crushed and extruded inside the crushing cylinder 21 through the arc-shaped sieve plate 23. In addition, the two arc-shaped fixing strips 24 can be pushed to both sides at the same time to make them disengage from the clamping and fixing of the arc-shaped sieve plate 23, so as to take out the arc-shaped sieve plate 23 for replacement;

[0040] In addition, during the movement of the crushing plate frame 11, the guiding seats on the first shearing frame 13 and the second shearing frame 14 will slide in the V-shaped guiding grooves of the crushing plate frame 11, so that the first shearing frame 13 and the second shearing frame 14 approach or move away from each other. During this process, the first shearing frame 13 drives the first crushing jaw sleeve 34 to reciprocate inside the crushing cylinder 21, and at the same time, the second shearing frame 14 drives the first crushing jaw plate 31 to reciprocate inside the crushing cylinder 21;

[0041] When the first crushing jaw sleeve 34 moves to drive the second crushing jaw sleeve 35 and the third crushing jaw sleeve 36 to move simultaneously towards the middle position of the crushing cylinder 21, and at the same time the first crushing jaw plate 31 drives the second crushing jaw plate 32 and the third crushing jaw plate 33 to also move simultaneously towards the middle position of the crushing cylinder 21, then the first crushing jaw plate 31 is matched with the first crushing jaw sleeve 34, the second crushing jaw plate 32 is matched with the second crushing jaw sleeve 35, and the third crushing jaw plate 33 is matched with the third crushing jaw sleeve 36. Subsequently, the edge positions where the pressing plate assembly and the pressing sleeve assembly cooperate with each other shear and crush the coal;

[0042] When the first crushing jaw sleeve 34 moves in a reset manner, the second crushing jaw sleeve 35 and the third crushing jaw sleeve 36 are driven to move following the first crushing jaw sleeve 34 by the action of two groups of second reset springs. When one end of the push rod frame 37 at the center of the third crushing jaw sleeve 36 abuts against one side of the machine frame 4, the coal particles at the center of the third crushing jaw sleeve 36 are pushed out by the continuous movement of the first crushing jaw sleeve 34. With the continuous movement of the first crushing jaw sleeve 34, at this time, the end of the third crushing jaw sleeve 36 abuts against one side of the machine frame 4. Then, the coal particles in the second crushing jaw sleeve 35 are pushed out by the sliding of the third crushing jaw sleeve 36 inside the second crushing jaw sleeve 35. By repeating the above actions, the second crushing jaw sleeve 35 pushes out the coal particles in the first crushing jaw sleeve 34. At the same time, when the first crushing jaw plate 31 moves in a reset manner, the second crushing jaw plate 32 and the third crushing jaw plate 33 are driven to move synchronously by the action of the first reset spring. Then, when the first crushing jaw plate 31 abuts against the other side of the machine frame 4, with the continuous movement of the second crushing jaw plate 32, the coal on the outer side of the second crushing jaw plate 32 is scraped by the first crushing jaw plate 31. By repeating the above steps, when the second crushing jaw plate 32 also abuts against the other side of the machine frame 4, with the continuous movement of the third crushing jaw plate 33, the coal on the outer side of the third crushing jaw plate 33 is scraped by the second crushing jaw plate 32. Then, a primary extrusion and crushing process of the coal is completed. By repeating the above steps multiple times, the coal can be quickly subjected to extrusion and crushing treatment.

[0043] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A coal crushing device for mining detection, comprising a frame (4), characterized in that: It also includes a material guide mechanism (2) for guiding the crushed coal particles out and a crushing mechanism (3) for extruding and crushing the coal; The material guiding mechanism (2) comprises a crushing cylinder (21), both ends of which are rotatably connected to the upper side of the frame (4), a driving mechanism (1) for driving the crushing mechanism (3) to move is provided on the lower side of the crushing cylinder (21), two symmetrical arc-shaped notches are provided on the outer side of the crushing cylinder (21), and an arc-shaped screen plate (23) is provided in each arc-shaped notch, and arc-shaped fixing bars (24) for fixing the arc-shaped screen plate (23) are provided on both sides of each arc-shaped screen plate (23), and a feeding hopper (22) for feeding coal into the crushing cylinder (21) is provided on the upper side of the two arc-shaped screen plates (23); The crushing mechanism (3) is composed of a pressure plate assembly and a pressure sleeve assembly, and the pressure plate assembly and the pressure sleeve assembly are both located inside the crushing cylinder (21), and the pressure plate assembly and the pressure sleeve assembly are symmetrically arranged with respect to each other; The pressure plate assembly comprises a first crushing jaw plate (31), a second crushing jaw plate (32) is sleeved on the inner side of the first crushing jaw plate (31), and a third crushing jaw plate (33) is sleeved on the inner side of the second crushing jaw plate (32); The pressing sleeve assembly comprises a first crushing jaw sleeve (34), a second crushing jaw sleeve (35) is sleeved on the inner side of the first crushing jaw sleeve (34), a third crushing jaw sleeve (36) is sleeved on the inner side of the second crushing jaw sleeve (35), and a push rod frame (37) is slidably connected to the center position of the third crushing jaw sleeve (36).

2. A coal crushing device for mining detection according to claim 1, characterized in that: A sealing plate (25) for preventing coal from flying out is inserted on one side of the feed hopper (22), and slide grooves are provided on both sides of the arc-shaped screen plate (23) of the crushing cylinder (21), and the arc-shaped fixing strip (24) is slidably connected to the slide grooves.

3. A coal crushing device for mining detection according to claim 1, characterized in that: The first crushing jaw disc (31) and the first crushing jaw sleeve (34) correspond to each other, the second crushing jaw disc (32) and the second crushing jaw sleeve (35) correspond to each other, and the third crushing jaw disc (33) and the third crushing jaw sleeve (36) correspond to each other.

4. A coal crushing device for mining detection according to claim 1, characterized in that: First return springs for pushing the first crushing jaw disc (31) and the third crushing jaw disc (33) are respectively provided at the outer edge and inner edge of the second crushing jaw disc (32), and second return springs for pushing the first crushing jaw disc (34) and the third crushing jaw disc (36) are respectively provided at the outer edge and inner edge of the second crushing jaw sleeve (35).

5. The coal crushing device for mining detection according to claim 1, characterized in that: The driving mechanism (1) comprises a crushing plate frame (11), rack frames (15) are fixed at both sides of the top of the crushing plate frame (11), and each rack frame (15) is meshed with a gear ring (16) on the upper side for driving the crushing cylinder (21) to rotate. A hydraulic cylinder (12) is provided at the bottom of the crushing plate frame (11) for driving the crushing plate frame (11) to move forward and backward. A first shredding frame (13) and a second shredding frame (14) passing through both sides of the frame (4) are respectively provided at both sides of the bottom of the crushing plate frame (11).

6. A coal crushing device for mining detection according to claim 5, characterized in that: A plurality of thin support rods (131) for driving the first crushing jaw sleeve (34) to move are fixed to the upper end of the first crushing rack (13), and a thick support rod (141) for driving the first crushing jaw plate (31) to move is fixed to the upper end of the second crushing rack (14).

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