CN218834657U

CN218834657U - Coal breaker with high sealing performance

Info

Publication number: CN218834657U
Application number: CN202320214703.9U
Authority: CN
Inventors: 苏红亮; 孙少娟
Original assignee: Shijiazhuang Xuxuan Technology Co ltd
Current assignee: Shijiazhuang Xuxuan Technology Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-04-11
Anticipated expiration: 2033-02-15

Abstract

The utility model provides a coal crusher with high sealing performance, which belongs to the technical field of coal crushing and comprises a base, a crushing chamber and a motor, wherein the upper cover of the crushing chamber is provided with a dust cover, a rotary hammer is arranged in the crushing chamber, the center of the rotary hammer is fixed with a rotating shaft, the rotating shaft is rotatably connected with the crushing chamber, and a sealing ring is arranged between the rotating shaft and the crushing chamber; the utility model provides the high leakproofness of crushing room has reduced the outside high-speed sputtering of cinder, has also reduced the cinder to shaft rotating's influence, has not only promoted the operating stability of breaker, has still improved operation personnel's factor of safety.

Description

Coal breaker with high sealing performance

Technical Field

The utility model relates to a broken technical field of coal, concretely relates to coal breaker with high sealing performance.

Background

In the sampling process of coal, a crusher is needed to crush the coal, and the crushing aims are to reduce the granularity of the coal sample, increase the number of the coal sample particles and reduce the division error; depending on the internal structure, crushers are further classified into jaw crushers, impact crushers, cone crushers, and hammer crushers.

In the prior art, a hammer crusher comprises a base, a crushing chamber and a motor, wherein a rotary hammer is arranged on the crushing chamber, a rotating shaft is fixed at the center of the rotary hammer, and two ends of the rotating shaft penetrate through the crushing chamber and then are supported by a bearing seat; the driving wheel is fixed on the driving shaft of the motor, the driven wheel is fixed on the rotating shaft, the belt is sleeved on the driving wheel and the driven wheel, and after the motor is started, the rotary hammer rotates in the crushing chamber through the transmission of the belt, so that the coal poured into the crushing chamber can be crushed.

In view of the above-mentioned related art, the inventor thinks that coal can produce a large amount of cinder dust after the crushing in the crushing chamber, and the cinder dust not only can get into the clearance between pivot and the crushing chamber, influences the rotation of pivot, still can outwards sputter at a high speed through the feed inlet of crushing chamber, increases operation personnel's safety risk.

Disclosure of Invention

In order to reduce the influence of cinder dust to crushing process, reduce the safety risk that the operation personnel lead to because of high-speed cinder sputtering simultaneously, the utility model provides a coal breaker with high sealing performance, it includes:

the base is provided with a bearing seat;

the crushing chamber is fixed on the base, a through hole is formed in the side wall of the crushing chamber, a feeding hole is formed in the top surface of the crushing chamber, and a dustproof cover is arranged on the feeding hole;

the rotary hammer is arranged in the crushing chamber, a rotating shaft is fixed at the center of the rotary hammer, two ends of the rotating shaft penetrate through the through hole and then are in rotating fit with the bearing seat, and a sealing ring is arranged between the rotating shaft and the through hole;

the motor is arranged on the base, and a driving shaft extends out of the motor;

the transmission assembly comprises a driving wheel, a belt and a driven wheel, the driving wheel is fixed on the driving shaft, the driven wheel is fixed on the rotating shaft, and the belt is sleeved on the driving wheel and the driven wheel.

Optionally, the shield includes baffle and apron, and the baffle is fixed on broken room, and rotate on the baffle and be connected with the balance shaft, and the apron is fixed with the balance shaft, and the apron lid is established on the feed inlet.

Optionally, the cover plate is bent, the balance shaft is fixed at the bent position of the cover plate, and two ends of the cover plate are gradually inclined downwards along a direction away from the balance shaft.

Optionally, the outer circumferential surface of the sealing ring is attached to the inner wall of the through hole, a sealing strip is fixed to the inner circumferential surface of the sealing ring, and the sealing strip is attached to the rotating shaft.

Optionally, a fixing plate is fixed on the sealing ring, the fixing plate is attached to the outer wall of the crushing chamber, and the fixing plate is detachably connected with the crushing chamber.

Optionally, a protective box is sleeved on the transmission assembly, an opening is formed in the protective box, and the driving shaft and the rotating shaft penetrate through the opening.

Optionally, the bottom of protective housing has been seted up the under shed, fixedly connected with stopper on the base, the stopper stretches into to the protective housing in through the under shed, and protective housing and stopper sliding fit.

The utility model discloses technical scheme has following advantage:

1. the sealing ring is arranged between the rotating shaft and the crushing chamber, the sealing ring not only reduces the rigid collision between the rotating shaft and the through hole, but also blocks the gap between the rotating shaft and the through hole, so that the coal cinder is not easy to enter the gap between the rotating shaft and the through hole, the normal operation of the rotating shaft is facilitated, and the overflow of the coal cinder through the through hole is reduced;

2. the utility model provides a protective box, which not only helps to reduce the damage of wind and snow, strong light and sand to the belt, but also can reduce the impact of coal to the belt, which not only helps to increase the operation stability of the belt, the driving wheel and the driven wheel, but also helps to increase the service life of the belt;

3. the utility model provides a have the shield, the special structural design of shield can make it under the condition that receives coal gravity, through the rotation of self, with the leading-in to the crushing chamber of coal, under the shield does not receive the external force condition, it can the keep balance state to block the feed inlet, reduce the outside sputter of high-speed cinder.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.

Fig. 1 is a schematic overall structure diagram of the present embodiment 1;

FIG. 2 is a partial schematic view of the dust cap and the shielding cage removed;

FIG. 3 is a partial schematic view of a dust cover with a baffle hidden;

FIG. 4 is a schematic view aimed at illustrating the installation position of the seal ring;

fig. 5 is a cross-sectional view intended to show the sealing ring, the fixing ring and the sealing band;

FIG. 6 is a schematic view of a protective case;

FIG. 7 is a schematic view of a seal ring, a fixing ring and a seal tape in embodiment 2;

description of the reference numerals: 1. a base; 11. a base plate; 12. a limiting block; 13. a support frame; 131. a transverse plate; 132. a vertical plate; 14. a bearing seat; 2. a crushing chamber; 21. a feed inlet; 22. a through hole; 23. a reinforcing plate; 3. a motor; 31. a drive shaft; 4. a transmission assembly; 41. a driving wheel; 42. a belt; 43. a driven wheel; 5. a rotary hammer; 51. a rotating shaft; 6. a dust cover; 61. a baffle plate; 611. a balance shaft; 62. a cover plate; 7. a protective box; 71. a handle; 72. opening; 73. a lower opening; 8. a seal ring; 81. a card slot; 82. a fixing plate; 821. mounting holes; 83. and (7) sealing the tape.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides a coal crusher with high sealing performance, and referring to fig. 1 and 2, the coal crusher comprises a base 1, a crushing chamber 2 and a motor 3, wherein a rotary hammer 5 is arranged in the crushing chamber 2, and a transmission assembly 4 is arranged between the motor 3 and the rotary hammer 5; when the coal is crushed, the motor 3 drives the transmission assembly 4 and the rotary hammer 5 to operate, and the rotary hammer 5 crushes the coal entering the crushing chamber 2.

Referring to fig. 2, the base 1 is horizontally arranged, a backing plate 11 is fixedly attached to the base 1, the motor 3 is fixed on the backing plate 11, and a driving shaft 31 horizontally extends out of the motor 3; when assembling the crusher, the backing plate 11 of a suitable height is selected to step up the motor 3 to a height matching the rotary hammer 5.

Referring to fig. 1, crushing room 2 and base 1 fixed connection, and a plurality of reinforcing plates 23 of fixedly connected with on the lateral wall of crushing room 2, the face of reinforcing plate 23 is right triangle-shaped, and the vertical lateral wall of reinforcing plate 23 and the fixed laminating of crushing room 2, and the horizontal bottom surface and the fixed laminating of base 1 of reinforcing plate 23, this helps strengthening the structural strength of crushing room 2 to and the compactness of being connected of crushing room 2 and base 1.

Referring to fig. 1 and 2, a feed inlet 21 is formed on the upper top surface of the crushing chamber 2, and a dust cover 6 is arranged on the top surface of the crushing chamber 2; the dust cover 6 comprises a baffle 61 and a cover plate 62, the baffle 61 is vertically arranged, the baffle 61 is provided with two baffles, and the two baffles 61 are opposite to each other.

Referring to fig. 3, a balance shaft 611 is rotatably connected between the two baffles 61, the balance shaft 611 is fixed to the cover plate 62, the balance shaft 611 penetrates through the cover plate 62, and the balance shaft 611 extends along the horizontal central axis of the cover plate 62; the cover plate 62 is bent, and two ends of the cover plate 62 are gradually inclined downward in a direction away from the balance shaft 611.

Referring to fig. 3, when no coal falls off from the upper side of the cover plate 62, the cover plate 62 is in a balanced state, and the cover plate 62 covers the feed port 21, so that outward sputtering of high-speed coal cinder in the crushing chamber 2 is reduced; when coal is present above the cover plate 62, the cover plate 62 is tilted, and the coal slides from the feed opening 21 into the crushing chamber 2 for crushing.

Referring to fig. 1, a support frame 13 is arranged on a base 1, the support frame 13 comprises transverse plates 131 and vertical plates 132, three vertical plates 132 are vertically arranged, the three vertical plates 132 are arranged at equal intervals, the bottom surfaces of the vertical plates 132 are fixedly connected with the base 1, the vertical side walls of the vertical plates 132 are attached to a crushing chamber 2, and the transverse plates 131 are horizontally fixed on the upper surfaces of the three vertical plates 132; the horizontal plate 131 is fixedly connected with the bearing seat 14 to support the bearing seat 14.

Referring to fig. 2, the rotary hammer 5 is horizontally disposed in the crushing chamber 2, and a rotary shaft 51 is fixed to the center of the rotary hammer 5, the rotary shaft 51 being parallel to the drive shaft 31 of the motor 3; the side wall of the crushing chamber 2 is horizontally provided with a through hole 22, and two ends of the rotating shaft 51 penetrate through the through hole 22 and then are in running fit with the bearing block 14.

Referring to fig. 4 and 5, a sealing ring 8 is disposed between the rotating shaft 51 and the through hole 22, and an outer circumferential surface of the sealing ring 8 is attached to an inner wall of the through hole 22; an annular clamping groove 81 is formed in the inner circumferential surface of the sealing ring 8, two rings of clamping grooves 81 are arranged, a sealing strip 83 is fixedly connected to each clamping groove 81, the sealing strips 83 are bent, the two sealing strips 83 are turned outwards in the opposite directions, and the sealing strips 83 are attached to the rotating shaft 51; when the seal ring 8 is mounted, lubricating oil is applied to the seal belt 83, thereby lubricating contact between the seal belt 83 and the rotary shaft 51.

Referring to fig. 5, a fixing plate 82 is fixedly connected to the sealing ring 8, when the sealing ring 8 is inserted into the through hole 22, the fixing plate 82 is attached to the outer wall of the crushing chamber 2, a plurality of mounting holes 821 are formed in the fixing plate 82, and the fixing plate 82 can be fixed to the crushing chamber 2 by the cooperation of bolts and the mounting holes 821.

Referring to fig. 2, the transmission assembly 4 includes a driving wheel 41, a belt 42 and a driven wheel 43, the driving wheel 41 is fixed on the driving shaft 31, the driven wheel 43 is fixed on the rotating shaft 51, and the belt 42 is sleeved on the driving wheel 41 and the driven wheel 43; when the motor 3 is started, the motor 3 drives the driving wheel 41 to operate, the driving wheel 41 drives the belt 42 and the driven wheel 43 to operate, and the driven wheel 43 drives the rotating shaft 51 to rotate.

Referring to fig. 1 and 2, a limiting block 12 is fixed on the base 1, the limiting block 12 is located under the transmission assembly 4, and the transmission assembly 4 is sleeved with a protective box 7.

Referring to fig. 6, a plurality of handles 71 are fixed on the upper surface of the protection box 7, the plurality of handles 71 are linearly arranged on the protection box 7 at equal intervals, two openings 72 are formed in the side wall of the protection box 7, and a lower opening 73 is formed in the bottom surface of the protection box 7.

Referring to fig. 2 and 6, when the protection box 7 is installed, the lower opening 73 of the protection box 7 faces the limiting block 12, the protection box 7 moves downwards, so that the limiting block 12 enters the protection box 7 through the lower opening 73, the protection box 7 is in sliding fit with the limiting block 12 in the vertical direction, the limiting block 12 can fix the position of the protection box 7, and in the process that the protection box 7 and the limiting block 12 are mutually embedded, the rotating shaft 51 and the driving shaft 31 of the motor 3 penetrate through the opening 72, so that mutual interference between the protection box 7 and the transmission assembly 4 is reduced.

The implementation principle of the embodiment is as follows: when the crusher is maintained and installed, the protective box 7 is covered on the transmission assembly 4 to protect the transmission assembly 4; in the feeding process, coal enters the crushing chamber 2 through the dust cover 6, then the coal is beaten and crushed by the rotary hammer 5 under the driving of the motor 3 and the transmission assembly 4, and the dust cover 6 covers the feeding hole 21 at the moment, so that outward sputtering of high-speed coal slag is reduced; the sealing ring 8 seals the through-hole 22 of the crushing chamber 2 and contributes to the operational stability of the rotary hammer 5.

Example 1

Referring to fig. 7, the difference from the first embodiment is that the sealing ring 8 is divided into two parts, each of which is a semicircular ring, which is advantageous for post-repair installation of the sealing ring 8 on the premise that the rotating shaft 51 is already installed, and in addition, the fixing plate 82 and the sealing tape 83 are divided into two parts, which are matched with the sealing ring 8 to jointly seal the rotating shaft 51.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. A coal crusher with high sealing performance is characterized by comprising:

the device comprises a base (1), wherein a bearing seat (14) is arranged on the base (1);

the crushing chamber (2) is fixed on the base (1), a through hole (22) is formed in the side wall of the crushing chamber (2), a feeding hole (21) is formed in the top surface of the crushing chamber (2), and a dustproof cover (6) is arranged on the feeding hole (21);

the rotary hammer (5) is arranged in the crushing chamber (2), a rotating shaft (51) is fixed at the center of the rotary hammer (5), two ends of the rotating shaft (51) penetrate through the through holes (22) and then are in running fit with the bearing seat (14), and a sealing ring (8) is arranged between the rotating shaft (51) and the through holes (22);

the motor (3), the motor (3) is arranged on the base (1), and a driving shaft (31) extends out of the motor (3);

drive assembly (4), drive assembly (4) are including action wheel (41), belt (42) and follow driving wheel (43), and action wheel (41) are fixed on drive shaft (31), follow driving wheel (43) and fix on pivot (51), and belt (42) cover is established on action wheel (41) and follow driving wheel (43).

2. The coal crusher with high sealing performance according to claim 1, characterized in that the dust cover (6) comprises a baffle plate (61) and a cover plate (62), the baffle plate (61) is fixed on the crushing chamber (2), the baffle plate (61) is rotatably connected with a balance shaft (611), the cover plate (62) is fixed with the balance shaft (611), and the cover plate (62) covers the feed port (21).

3. The coal crusher with high sealing performance as claimed in claim 2, characterized in that the cover plate (62) is bent, the balance shaft (611) is fixed at the bent part of the cover plate (62), and both ends of the cover plate (62) are gradually inclined downwards along the direction far away from the balance shaft (611).

4. The coal crusher with high sealing performance according to claim 1, characterized in that the outer peripheral surface of the sealing ring (8) is attached to the inner wall of the through hole (22), a sealing tape (83) is fixed on the inner peripheral surface of the sealing ring (8), and the sealing tape (83) is attached to the rotating shaft (51).

5. A coal crusher with high sealing performance according to claim 4, characterized in that the sealing ring (8) is fixed with a fixing plate (82), the fixing plate (82) is attached to the outer wall of the crushing chamber (2), and the fixing plate (82) is detachably connected with the crushing chamber (2).

6. The coal crusher with high sealing performance according to claim 1, wherein the transmission assembly (4) is sleeved with a protective box (7), the protective box (7) is provided with a gap (72), and the driving shaft (31) and the rotating shaft (51) both penetrate through the gap (72).

7. The coal crusher with high sealing performance according to claim 6, characterized in that a lower opening (73) is formed in the bottom of the protection box (7), a limiting block (12) is fixedly connected to the base (1), the limiting block (12) extends into the protection box (7) through the lower opening (73), and the protection box (7) is in sliding fit with the limiting block (12).