Novel claw crusher

Abstract

A crushing box is installed on the upper surface of a base, a rectangular shaft is rotatably installed in the crushing box through a bearing box, a gear motor is installed on the upper surface of the base, the end of an output shaft of the gear motor is connected with a coupler, and an output shaft of the coupler is connected with the rectangular shaft. A plurality of crushing claws are arranged on the outer surface of the rectangular shaft, a plurality of auxiliary crushing plates are installed on the inner walls of the two sides of the crushing box, and the auxiliary crushing plates and the crushing claws are arranged in a staggered mode; and a dismounting mechanism is arranged between the rectangular shaft and the crushing claw. By adopting an extrusion crushing mode, vibration generated during operation is small, a severe working environment can be avoided, the service life of each part of the equipment can be prolonged, the crushing cavity is not easy to block, the crushing efficiency is improved, the crushing claws can be conveniently and independently replaced, the replacement of the whole rectangular shaft is avoided, the maintenance cost is reduced, and the overhaul efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a novel claw crusher. Background Art

[0002] In industries such as mining, coal mining, and sampling, crushers are needed to crush sample materials into smaller particles. Existing crushers primarily rely on impact energy to crush materials, such as horizontal hammer crushers and vertical shaft crushers. During operation, a motor drives the rotor to rotate at high speed within the crushing chamber (the rotor is equipped with hammers). Materials are evenly fed into the crushing chamber from the top feed port. The high-speed rotating hammers impact, shear, and grind the materials, crushing them. A sieve plate is provided below the rotor in the crushing chamber. Particles smaller than the sieve hole size in the crushed material are discharged through the sieve plate, while coarse particles larger than the sieve hole size are retained on the sieve plate and continue to be struck and ground by the hammers until they are crushed to the desired discharge size and discharged through the sieve plate.

[0003] However, traditional crushers often have the following defects in use:

[0004] 1. Parts are easily damaged and have a short service life. This method of relying on impact energy to crush materials causes large equipment vibrations and a harsh operating environment, which in turn leads to a short equipment life. Parts damaged by long-term vibration need to be replaced frequently, resulting in high maintenance costs and operating costs.

[0005] 2. Materials tend to accumulate and clog the crushing chamber. When crushing relatively wet and sticky materials, the materials tend to clump and accumulate on the inner wall of the crushing chamber, or clog the sieve holes of the screen plate, causing the equipment to not operate normally.

[0006] 3. Low crushing efficiency. Before the materials are put into the crushing chamber, there is no preliminary screening process. The fine-grained materials that meet the requirements in the basic raw materials will also be put into the crushing chamber for crushing and screening, which makes the equipment produce unnecessary crushing work, resulting in low crushing efficiency. In addition, the fine-grained materials may be crushed into too fine powder, resulting in too high a surface discharge rate. Utility Model Content

[0007] The purpose of the utility model is to provide a new claw crusher with long service life, not easy to clog the crushing chamber, and high crushing efficiency, which effectively solves the problems raised in the above background technology.

[0008] In order to achieve the above-mentioned purpose, the present utility model provides the following technical solutions.

[0009] A new claw crusher includes a base with a crushing box mounted on its upper surface. A rectangular shaft is rotatably mounted inside the crushing box via a bearing housing. A reduction motor is mounted on the upper surface of the base. A coupling is connected to the end of the reduction motor's output shaft, and the coupling's output shaft is connected to the rectangular shaft. Multiple crushing claws are mounted on the outer surface of the rectangular shaft. Multiple auxiliary crushing plates are mounted on both sides of the inner wall of the crushing box, and the auxiliary crushing plates are staggered with the crushing claws. A disassembly mechanism is provided between the rectangular shaft and the crushing claws.

[0010] Preferably, the disassembly mechanism includes a rotating shaft rotatably installed inside the rectangular shaft, a cam block is installed on the outer surface of the rotating shaft, a push rod is provided through the four side surfaces of the rectangular shaft, a shaft shoulder is provided on the outer surface of the push rod, a spring is sleeved on the outer surface of the push rod, and the two ends of the spring are respectively in contact with the shaft shoulder and the inner wall of the rectangular shaft, and the inner walls of the four sides of the crushing claw are provided with insertion holes, which are adapted to the push rod, and the end of the rotating shaft passes through the outside of the rectangular shaft and is provided with a fixing mechanism.

[0011] Preferably, the fixing mechanism includes a mounting block mounted on the end of the rotating shaft, a screw is mounted inside the mounting block, and a screw hole is opened at the end of the rectangular shaft, and the screw hole is adapted to fit the screw.

[0012] Preferably, an inlet hopper is installed on the top of the crushing box, and a lower hopper is installed on the bottom of the crushing box.

[0013] Preferably, both side walls of the base are provided with notches, and the rectangular shaft is arranged in the notches, and a limiting plate is installed inside the notches by means of bolts.

[0014] Preferably, the end of the crushing claw is provided with a sharp hook portion, and the outer surface of the auxiliary crushing plate is provided with a sharp corner portion.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) When the rectangular shaft of the utility model rotates, it can drive the crushing claws to squeeze and crush the material. By adopting the squeezing and crushing method, the vibration generated during operation is small, which can avoid the harsh working environment, thereby extending the service life of each component of the equipment and reducing maintenance costs and usage costs. The material that can be discharged from the gap between the two adjacent auxiliary crushing plates during the squeezing and crushing process is the qualified fine-grained material. The fine material can be discharged directly, avoiding unnecessary crushing work, resulting in low crushing efficiency and high surface discharge rate, and can effectively solve the problems of powder spraying and air blasting. In addition, the crushing claws and the auxiliary crushing plates are staggered, and the ends of the crushing claws can extend into the gap between the two adjacent auxiliary crushing plates. When crushing relatively wet and sticky materials, the ends of the crushing claws in the rotating state can effectively avoid the accumulation and clogging of materials in the gap between the two adjacent auxiliary crushing plates, which can ensure the normal operation of the equipment. In addition, through the setting of the disassembly mechanism, when the crushing claws are damaged, they can be quickly replaced, avoiding the replacement of the entire rectangular shaft, reducing maintenance costs, and improving maintenance efficiency.

[0017] (2) The utility model is provided with a disassembly mechanism. A cam block is installed on the outer surface of the rotating shaft. A push rod is provided through each of the four sides of the rectangular shaft. A shoulder is provided on the outer surface of the push rod. A spring is sleeved on the outer surface of the push rod. The two ends of the spring are respectively in contact with the shoulder and the inner wall of the rectangular shaft. A socket is provided on each of the four inner walls of the crushing claw. The socket is adapted to the push rod. The end of the rotating shaft passes through the outer side of the rectangular shaft and is provided with a fixing mechanism. When the damaged crushing claw needs to be removed, the rotating shaft can be rotated to separate the convex part of the cam block from the bottom of the push rod. At this time, under the elastic force of the spring, the push rod can be driven to retract into the interior of the rectangular shaft and be withdrawn from the socket. At this time, the crushing claw is released and can be removed. After the crushing claw is installed on the rectangular shaft, the rotating shaft is rotated again to make the convex part of the cam block squeeze the push rod again, thereby causing the push rod to extend outward and be inserted into the socket. The rotating shaft is then fixed by the fixing mechanism, thereby realizing the rapid replacement of the crushing claw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the crushing box in the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the rectangular shaft in the present invention;

[0021] Figure 4 It is a structural diagram of the disassembly mechanism and the fixing mechanism in the utility model;

[0022] Figure 5 for Figure 4 A is an enlarged schematic diagram;

[0023] Figure 6 It is a structural schematic diagram of the crushing claw in the utility model. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] like Figures 1 to 6 As shown, a novel claw crusher includes a base 100, a crushing box 101, a rectangular shaft 102, a reduction motor 103, a coupling 104, a bearing box 105, a crushing claw 106, an auxiliary crushing plate 107, a disassembly mechanism 200, a push rod 201, a shaft shoulder 202, a spring 203, a rotating shaft 204, a cam block 205, a socket 206, a fixing mechanism 300, a mounting block 301, a screw 302, a screw hole 303, a feed hopper 400, a lower hopper 401, a notch 500, a limit plate 501, a sharp hook portion 600, and a sharp corner portion 601.

[0026] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] like Figures 1 to 6As shown, a crushing box 101 is installed on the upper surface of the base 100, and a rectangular shaft 102 is rotatably installed inside the crushing box 101 through a bearing box 105. A reduction motor 103 is installed on the upper surface of the base 100, and the end of the output shaft of the reduction motor 103 is connected to a coupling 104, and the output shaft of the coupling 104 is connected to the rectangular shaft 102. The drive system adopts a coupling 104 plus a bearing box 105 to avoid damage to the bearings and the reducer and increase the output torque.

[0029] The outer surface of the rectangular shaft 102 is provided with a plurality of crushing claws 106. The inner walls of both sides of the crushing box 101 are installed with a plurality of auxiliary crushing plates 107, and the auxiliary crushing plates 107 are staggered with the crushing claws 106. When the rectangular shaft 102 rotates, it can drive the crushing claws 106 to squeeze and crush the material. During the squeezing and crushing process, the material that can be discharged from the gap between two adjacent auxiliary crushing plates 107 is qualified fine-grained material. Fine material can be discharged directly, avoiding unnecessary crushing work, resulting in low crushing efficiency and excessive surface discharge rate. A disassembly mechanism 200 is provided between the rectangular shaft 102 and the crushing claws 106. Through the provision of the disassembly mechanism 200, when the crushing claws 106 are damaged, they can be quickly replaced, avoiding the need to replace the entire rectangular shaft 102, reducing maintenance costs, and improving maintenance efficiency. A feed hopper 400 is installed on the top of the crushing box 101, and a discharge hopper 401 is installed on the bottom of the crushing box 101. The configuration of the feed hopper 400 and the discharge hopper 401 facilitates feeding and discharging of materials. Notches 500 are provided on both side walls of the base 100, and the rectangular shaft 102 is disposed within the notches 500. A limit plate 501 is installed inside the notch 500 via bolts. When the rectangular shaft 102 needs to be removed, the limit plate 501 can be removed from the notch 500 first. At this time, the rectangular shaft 102 can be taken out of the notch 500. After the rectangular shaft 102 is reinstalled in the notch 500, the limit plate 501 is installed in the notch 500 using bolts to limit the rectangular shaft 102.

[0030] The disassembly mechanism 200 includes a rotating shaft 204 rotatably mounted inside the rectangular shaft 102, a cam block 205 being mounted on the outer surface of the rotating shaft 204, a push rod 201 being provided on each of the four sides of the rectangular shaft 102, a shoulder 202 being provided on the outer surface of the push rod 201, a spring 203 being sleeved on the outer surface of the push rod 201, the two ends of the spring 203 being respectively in contact with the shoulder 202 and the inner wall of the rectangular shaft 102, a socket 206 being provided on the four inner walls of the crushing claw 106, the socket 206 being adapted to the push rod 201, the end of the rotating shaft 204 being passed through the outer side of the rectangular shaft 102 and being provided with a fixing mechanism 300, When the crushing claw 106 is installed on the rectangular shaft 102, the rotating shaft 204 is rotated again to make the convex part of the cam block 205 squeeze the push rod 201 again, thereby making the push rod 201 extend outward and insert into the plug hole 206. Then, the rotating shaft 204 is fixed by the fixing mechanism 300, thereby realizing the quick replacement of the crushing claw 106. The fixing mechanism 300 includes a mounting block 301 mounted on the end of the rotating shaft 204. A screw 302 is installed inside the mounting block 301. A screw hole 303 is opened at the end of the rectangular shaft 102. The screw hole 303 is adapted to the screw 302. When the rotating shaft 204 is rotated to complete the fixing of the crushing claw 106, the screw 302 is aligned with the screw hole 303. Then, the screw 302 is screwed into the screw hole 303 to complete the fixing of the rotating shaft 204.

[0031] The end of the crushing claw 106 is provided with a sharp hook portion 600, and the outer surface of the auxiliary crushing plate 107 is provided with a sharp corner portion 601. Through the setting of the sharp hook portion 600 and the sharp corner portion 601, the material can be quickly crushed during operation, the crushing effect is good, and the crushing efficiency can be improved.

[0032] The working principle of this utility model is as follows:

[0033] In use, the material is fed from the feeding hopper 400, the deceleration motor 103 is started, the deceleration motor 103 drives the rectangular shaft 102 to rotate, and the crushing claw 106 is driven to crush the material, the material discharged from the gap between the two adjacent auxiliary crushing plates 107 in the crushing process is the qualified fine material, and the fine material can be directly discharged, thereby avoiding unnecessary crushing work, since the crushing claw 106 and the auxiliary crushing plate 107 are staggered, the end of the crushing claw 106 can extend into the gap between the two adjacent auxiliary crushing plates 107, when crushing the relatively wet and sticky material, the end of the crushing claw 106 in the rotating state can effectively avoid the material from being accumulated and blocked in the gap between the two adjacent auxiliary crushing plates 107, and the normal operation of the equipment can be ensured, when the crushing claw 106 is damaged, the damaged crushing claw 106 is first removed, when the damaged crushing claw 106 is removed, the rotating shaft 204 is rotated, the convex surface part of the cam block 205 is separated from the bottom part of the jacking rod 201, at this time, under the elastic force of the spring 203, the jacking rod 201 can be driven to shrink into the rectangular shaft 102 and be extracted from the insertion hole 206, at this time, the crushing claw 106 is released and can be removed, when the crushing claw 106 is installed on the rectangular shaft 102, the rotating shaft 204 is rotated again, the convex surface part of the cam block 205 extrudes the jacking rod 201 again, the jacking rod 201 is driven to extend outward and is inserted into the insertion hole 206, then the rotating shaft 204 is fixed through the fixing mechanism 300, thereby realizing the quick replacement of the crushing claw 106.

[0034] The above embodiments are only preferred embodiments of the utility model, and cannot be used to limit the scope of the utility model, therefore, the modification, equivalent change, improvement and the like made according to the patent range of the utility model still belong to the range covered by the utility model.

Claims

1. A novel claw crusher, comprising a base (100), characterized in that: A crushing box (101) is mounted on the upper surface of the base (100), a rectangular shaft (102) is rotatably mounted inside the crushing box (101) via a bearing box (105), a reduction motor (103) is mounted on the upper surface of the base (100), a coupling (104) is connected to the end of the output shaft of the reduction motor (103), and the output shaft of the coupling (104) is connected to the rectangular shaft (102), a plurality of crushing claws (106) are arranged on the outer surface of the rectangular shaft (102), a plurality of auxiliary crushing plates (107) are mounted on the inner walls of both sides of the crushing box (101), and the auxiliary crushing plates (107) and the crushing claws (106) are arranged in an alternating manner; a disassembly mechanism (200) is provided between the rectangular shaft (102) and the crushing claws (106).

2. A new claw crusher according to claim 1, characterized in that: The disassembly mechanism (200) comprises a rotating shaft (204) rotatably mounted inside the rectangular shaft (102); a cam block (205) is mounted on the outer surface of the rotating shaft (204); a push rod (201) is provided through the four side surfaces of the rectangular shaft (102); a shaft shoulder (202) is provided on the outer surface of the push rod (201); a spring (203) is sleeved on the outer surface of the push rod (201); two ends of the spring (203) respectively abut against the shaft shoulder (202) and the inner wall of the rectangular shaft (102); a socket (206) is provided on the four inner walls of the crushing claw (106); the socket (206) is adapted to the push rod (201); and an end of the rotating shaft (204) penetrates the outer side of the rectangular shaft (102) and is provided with a fixing mechanism (300).

3. A new claw crusher according to claim 2, characterized in that: The fixing mechanism (300) comprises a mounting block (301) mounted on the end of the rotating shaft (204), a screw (302) being mounted inside the mounting block (301), and a screw hole (303) being provided at the end of the rectangular shaft (102), the screw hole (303) being adapted to fit the screw (302).

4. A new claw crusher according to claim 3, characterized in that: An inlet hopper (400) is installed on the top of the crushing box (101), and a lower hopper (401) is installed on the bottom of the crushing box (101).

5. A new claw crusher according to claim 4, characterized in that: Both side walls of the base (100) are provided with notches (500), and the rectangular shaft (102) is arranged in the notches (500). A limiting plate (501) is installed inside the notches (500) via bolts.

6. A new claw crusher according to claim 1, characterized in that: The end of the crushing claw (106) is provided with a sharp hook portion (600), and the outer surface of the auxiliary crushing plate (107) is provided with a sharp corner portion (601).

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