Three-roller crusher

Abstract

The utility model belongs to the technical field of crushing equipment, and particularly relates to a three-roller crusher which comprises a lower base, a middle square beam and an upper base which are sequentially and fixedly connected from bottom to top, a front driving compression roller and a rear compression roller are sequentially arranged between the lower base and the middle square beam, and the rear compression roller is arranged on the lower base in a sliding mode. A rubber air bag spring, a movable base and an upper pressing roller are sequentially arranged below the upper base, the upper pressing roller is located above the front driving pressing roller, the lower end of the rubber air bag spring is fixedly connected with the movable base, the upper pressing roller is rotationally arranged in the movable base, and the lower end of the upper pressing roller extends out of the movable base to be matched with the front driving pressing roller. An adjusting device is hinged between the front end of the movable base and the middle square beam, the rear end of the movable base is hinged to the middle square beam, and the adjusting device is used for driving the upper pressing roller to be away from or close to the front driving pressing roller. Multi-stage composite crushing is achieved through one set of equipment, the granularity of crushed materials can be adjusted according to needs, the sand making effect is guaranteed, and the material crushing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing equipment, and particularly relates to a three-roll crusher. Background Art

[0002] At present, the crushing of materials is an indispensable process in the production of products in many industrial sectors such as mining, building materials, chemical industry, and metallurgy. The material crushing process usually involves ensuring the particle size of the crushed materials, and different equipment needs to be used for materials with different particle sizes, such as jaw crushers, cone crushers, roll crushers, etc. On the one hand, large pieces of materials are initially crushed by a primary crushing equipment. After screening, the materials with larger particle sizes that do not meet the requirements are further crushed by a secondary crushing equipment. By repeating the above process, there are problems of high energy consumption, large floor area, and low efficiency for multiple equipment. Summary of the Invention

[0003] In order to solve the problem that existing crushing equipment requires multiple equipment to cooperate to meet the material crushing requirements, and thus there is a problem of low material crushing efficiency, the utility model provides a three-roll crusher, which realizes multi-stage composite crushing through a set of equipment, and can adjust the particle size of the crushed materials as needed to ensure the sand making effect and improve the material crushing efficiency.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A three-roll crusher includes a lower base, a middle square beam, and an upper base fixedly connected in sequence from bottom to top. Both the upper base and the lower base are fixedly connected to the middle square beam through connecting rods. A front active pressure roll and a rear pressure roll are sequentially arranged between the lower base and the middle square beam. The front active pressure roll is connected to a power source to drive the front active pressure roll to rotate, and both the upper ends of the front active pressure roll and the rear pressure roll extend out of the middle square beam. The rear pressure roll is slidably arranged on the lower base, and the rear pressure roll is connected with a buffer member, and the buffer member is connected with an adjusting member for driving the rear pressure roll to approach or move away from the front active pressure roll. The front active pressure roll rotates to drive the material to move forward to realize the conveying before crushing, and cooperates with the rear pressure roll to crush the material.

[0006] A rubber airbag spring, a movable base, and an upper pressure roll are sequentially arranged below the upper base. The upper pressure roll is located above the front active pressure roll. The lower end of the rubber airbag spring is fixedly connected to the movable base. The upper pressure roll is rotatably arranged in the movable base, and the lower end of the upper pressure roll extends out of the movable base to cooperate with the front active pressure roll. A fixed seat is fixedly arranged on the upper side of the middle square beam. An adjusting device is hinged between the front end of the movable base and the fixed seat, and the rear end is hinged to another fixed seat through a pin shaft. The adjusting device is used to drive the upper pressure roll to move away from or approach the front active pressure roll, and the front active pressure roll and the upper pressure roll cooperate to realize the first crushing.

[0007] Preferably, the buffer member includes a rear roller connection seat and a spring seat that are slidably disposed on the lower base. The rear roller is slidably mounted on the lower base through a mounting seat. The mounting seat is fixedly connected to the rear roller connection seat. A rear roller spring is fixedly disposed between the rear roller connection seat and the spring seat. By means of the roller spring, during the crushing process, when encountering materials with larger particle sizes, the rear roller has buffering to avoid damaging the front active roller and the rear roller.

[0008] Preferably, the adjusting member includes a sleeve, an adjusting rod, a bearing seat, a first gear, a second gear, and a motor. One side of the spring seat is fixedly connected to the sleeve. The bearing seat is fixedly disposed on the lower base. The adjusting rod is rotatably connected to the bearing seat through a bearing. One end of the adjusting rod is threadedly connected to the sleeve, and the other end extends out of the bearing seat and is fixedly connected to the first gear. A motor is fixedly disposed on one side of the lower base. The output end of the motor is fixedly provided with a second gear. The first gear and the second gear mesh with each other. The motor drives the gear to rotate, drives the adjusting rod to rotate, drives the sleeve to move, and drives the spring seat to move.

[0009] Preferably, the adjusting member includes an adjusting oil cylinder and a pumping station. The adjusting oil cylinder is fixedly disposed on the lower base. The output end of the adjusting oil cylinder is fixedly connected to the spring seat. The adjusting oil cylinder is connected to the pumping station, and the adjusting oil cylinder drives the spring seat to move.

[0010] Preferably, the adjusting device is a hydraulic cylinder.

[0011] By the above technical solutions, the beneficial effects of the present utility model are as follows:

[0012] 1. The present utility model realizes multi-stage and composite crushing operations through the cooperation of the front active roller, the upper roller, and the rear roller, effectively improving the crushing operation efficiency, with a simple structure and convenient use.

[0013] 2. The present utility model is provided with buffer devices on both the upper roller and the rear roller, and considering the different particle sizes of the materials crushed by the upper roller and the rear roller, rubber airbag springs are respectively set corresponding to the upper roller and roller springs corresponding to the rear roller as needed to achieve different pressure buffering, effectively ensuring the protection effect on the rollers.

[0014] 3. The present utility model realizes the adjustment of the gap size between the upper roller and the front active roller through the drive of a hydraulic cylinder, and realizes the adjustment of the gap size between the rear roller and the front active roller through a motor or an adjusting oil cylinder, thereby effectively ensuring that crushing is carried out according to different material particle size requirements during crushing, making the crushing operation have better operability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present utility model Figure 1 .

[0016] Figure 2 Structural schematic of the present utility model Figure 2 。

[0017] The reference numerals in the accompanying drawings are: 1 is the lower base, 2 is the front active pressing roller, 3 is the middle square beam, 4 is the adjusting device, 5 is the upper pressing roller, 6 is the upper base, 7 is the rubber airbag spring, 8 is the movable base, 9 is the pin shaft, 10 is the fixed seat, 11 is the rear pressing roller, 12 is the rear pressing roller connection seat, 13 is the rear pressing roller spring, 14 is the sleeve, 15 is the spring seat, 16 is the adjusting rod, 17 is the bearing seat, 18 is the first gear, 19 is the second gear, 20 is the motor, 21 is the adjusting oil cylinder, 22 is the pumping station. Specific embodiments

[0018] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0019] As Figures 1 to 2 shown, this embodiment provides a three-roll crusher, which includes a lower base 1, a middle square beam 3 and an upper base 6 fixedly connected in sequence from bottom to top. Both the upper base 6 and the lower base 1 are fixedly connected to the middle square beam 3 through connecting rods. The middle square beam 3 is of a rectangular frame structure surrounded by four beam columns. A front active pressing roller 2 and a rear pressing roller 11 are sequentially arranged between the lower base 1 and the middle square beam 3. The front active pressing roller 2 is connected to a power source to drive the front active pressing roller 2 to rotate. The power source can adopt a motor cooperating with a speed reducer to realize the rotational drive of the front active pressing roller 2. And both the upper ends of the front active pressing roller 2 and the rear pressing roller 11 extend out of the middle square beam 3. The rear pressing roller 11 is slidably arranged on the lower base 1, and the rear pressing roller 11 is slidably installed on the lower base 1 through a mounting seat.

[0020] The rear pressing roller 11 is connected with a buffer member. The buffer member includes a rear pressing roller connection seat 12 and a spring seat 15 slidably arranged on the lower base 1. The mounting seat is fixedly connected to the rear pressing roller connection seat 12, that is, the rear pressing roller 11 and the rear pressing roller connection seat 12 slide synchronously. A rear pressing roller spring 13 is fixedly arranged between the rear pressing roller connection seat 12 and the spring seat 15. The rear pressing roller 11 is buffered by the rear pressing roller spring 13 to avoid damage to the front active pressing roller 2 and the rear pressing roller 11 when the front active pressing roller 2 and the rear pressing roller 11 cooperate to crush materials and encounter harder and larger-particle-size materials.

[0021] A rubber airbag spring 7, a movable base 8, and an upper pressing roller 5 are sequentially arranged below the upper base 6. The upper pressing roller 5 is located above the front driving roller 2 and offset to one side along the rotation direction of the front driving roller 2, so as to ensure that the material broken by the cooperation of the front driving roller 2 and the upper pressing roller 5 falls between the front driving roller 2 and the rear pressing roller 11. The lower end of the rubber airbag spring 7 is fixedly connected to the movable base 8. The upper pressing roller 5 is rotatably arranged in the movable base 8, and the lower end of the upper pressing roller 5 extends out of the movable base 8 to cooperate with the front driving roller 2. The upper pressing roller 5 and the front driving roller 2 cooperate to break the material. The rubber airbag spring 7 buffers the upper pressing roller 5 to prevent damage to the upper pressing roller 5 and the front driving roller 2 caused by the larger particle size or harder material of the broken material. A fixed seat 10 is fixedly arranged on the upper side of the middle beam 3. An adjusting device 4 is hinged between the front end of the movable base 8 and the fixed seat 10, and the rear end is hinged to another fixed seat 10 through a pin shaft 9. The adjusting device 4 is used to drive the upper pressing roller 5 to move away from or close to the front driving roller 2. The adjusting device 4 is a hydraulic cylinder. According to needs, the hydraulic cylinder is used to drive the movable base 8 to rotate around the pin shaft 9, so as to realize the position adjustment of the upper pressing roller 5.

[0022] As Figure 1 shown, the buffer is connected with an adjusting member for driving the rear pressing roller 11 to move close to or away from the front driving roller 1. The adjusting member includes a sleeve 14, an adjusting rod 16, a bearing seat 17, a first gear 18, a second gear 19, and a motor 20. One side of the spring seat 15 is fixedly connected to the sleeve 14. The bearing seat 17 is fixedly arranged on the lower base 1. The adjusting rod 16 is rotatably connected to the bearing seat 17 through a bearing. One end of the adjusting rod 16 is threadedly connected to the sleeve 14, and the other end extends out of the bearing seat 17 and is fixedly connected to the first gear 18. The first gear 18 rotates synchronously with the adjusting rod 16, drives the sleeve 14 to move, drives the spring seat 151 to move, drives the rear pressing roller connecting seat 12 to move through the elasticity of the rear pressing roller spring 13, and further drives the rear pressing roller 11 to move away from or close to the front driving roller 2 to adjust the particle size of the broken material. The motor 20 is fixedly arranged on one side of the lower base 1. The output end of the motor 20 is fixedly provided with the second gear 19. The first gear 18 and the second gear 19 are meshed with each other. The motor 20 drives the second gear 19 to rotate, driving the first gear 18 to rotate.

[0023] As an implementable manner, as Figure 2As shown, the buffer is connected with an adjusting member for driving the rear pressure roller 11 to approach or move away from the front active pressure roller 1. The adjusting member includes an adjusting oil cylinder 21 and a pumping station 22. The adjusting oil cylinder 21 is fixedly arranged on the lower base 1. The output end of the adjusting oil cylinder 21 is fixedly connected to a spring seat 15. The adjusting oil cylinder 21 drives the spring seat 15 to move. The spring seat 15 drives the rear pressure roller connecting seat 12 to move through the elasticity of the rear pressure roller spring 13, and further drives the rear pressure roller 11 to move away from or approach the front active pressure roller 2 to adjust the particle size of the crushed material. The adjusting oil cylinder 21 is connected with a pumping station 22 to provide power for the adjusting oil cylinder 21.

[0024] During use, first, the adjusting device 4 (i.e., the hydraulic cylinder) is used to drive the movable base 8 to rotate to adjust the gap between the upper pressure roller 5 and the front active pressure roller 2 to ensure the primary crushing effect. At the same time, the adjusting member is used to drive the rear pressure roller 11 to approach or move away from the front active pressure roller 2 to adjust the gap between the front active pressure roller 2 and the rear pressure roller 11 to ensure the particle size requirement for sand making.

[0025] Subsequently, the process of material crushing and sand making begins. The material is carried between the front active pressure roller 2 and the upper pressure roller 5 by the rotation of the front active pressure roller 2. After being crushed by the extrusion and impact of the upper pressure roller 5, as the front active pressure roller 2 rotates, it falls between the front active pressure roller 2 and the rear pressure roller 11 and is secondarily impacted and crushed by the rear pressure roller 11, thereby achieving the purpose of sand making.

[0026] During this process, the rubber airbag spring 7 and the rear pressure roller spring 13 are used to buffer and protect the upper pressure roller 5 and the rear pressure roller 11 respectively, avoiding damage to the pressure rollers when encountering too hard or large materials and effectively extending the service life of the pressure rollers.

[0027] The above embodiments are only the preferred embodiments of the present invention and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent should be included in the scope of the patent application of the present invention.

Claims

1. A three-roll crusher, characterized in that: The invention comprises a lower base (1), a middle beam (3) and an upper base (6) which are fixedly connected in sequence from bottom to top, the upper base (6) and the lower base (1) are both fixedly connected to the middle beam (3) via a connecting rod, a front active pressure roller (2) and a rear pressure roller (11) are arranged in sequence between the lower base (1) and the middle beam (3), the front active pressure roller (2) is connected to a power source to drive the front active pressure roller (2) to rotate, and the upper ends of the front active pressure roller (2) and the rear pressure roller (11) both extend out of the middle beam (3), the rear pressure roller (11) is slidably arranged on the lower base (1), the rear pressure roller (11) is connected to a buffer, and the buffer is connected to an adjusting member for driving the rear pressure roller (11) to approach or move away from the front active pressure roller (2); A rubber airbag spring (7), a movable base (8) and an upper pressure roller (5) are arranged in sequence below the upper base (6); the upper pressure roller (5) is located above the front active pressure roller (2); the lower end of the rubber airbag spring (7) is fixedly connected to the movable base (8); the upper pressure roller (5) is rotatably arranged in the movable base (8), and the lower end of the upper pressure roller (5) extends out of the movable base (8) to cooperate with the front active pressure roller (2); a fixed seat (10) is fixedly arranged on the upper side of the middle beam (3); an adjustment device (4) is hingedly arranged between the front end of the movable base (8) and the fixed seat (10); and the rear end is hingedly connected to another fixed seat (10) through a pin shaft (9); the adjustment device (4) is used to drive the upper pressure roller (5) to move away from or close to the front active pressure roller (2).

2. A three-roll crusher according to claim 1, characterized in that: The buffer member comprises a rear pressure roller connecting seat (12) and a spring seat (15) which are slidably mounted on the lower base (1); the rear pressure roller (11) is slidably mounted on the lower base (1) via a mounting seat; the mounting seat is fixedly connected to the rear pressure roller connecting seat (12); and a rear pressure roller spring (13) is fixedly mounted between the rear pressure roller connecting seat (12) and the spring seat (15).

3. A three-roll crusher according to claim 2, characterized in that: The adjusting member comprises a sleeve (14), an adjusting rod (16), a bearing seat (17), a first gear (18), a second gear (19) and a motor (20); one side of the spring seat (15) is fixedly connected to the sleeve (14); the bearing seat (17) is fixedly arranged on the lower base (1); the adjusting rod (16) is rotatably connected to the bearing seat (17) via a bearing; one end of the adjusting rod (16) is threadedly connected to the sleeve (14); the other end of the adjusting rod (16) extends out of the bearing seat (17) and is fixedly connected to the first gear (18); the motor (20) is fixedly arranged on one side of the lower base (1); the output end of the motor (20) is fixedly arranged with the second gear (19); the first gear (18) and the second gear (19) are meshed with each other.

4. A three-roll crusher according to claim 1, characterized in that: The regulating member comprises an regulating oil cylinder (21) and a pump station (22); the regulating oil cylinder (21) is fixedly arranged on the lower base (1); an output end of the regulating oil cylinder (21) is fixedly connected to a spring seat (15); and the regulating oil cylinder (21) is connected to the pump station (22).

5. A three-roll crusher according to claim 1, characterized in that: The adjusting device (4) is a hydraulic cylinder.

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