Gap adjusting device of impact crusher

Abstract

The utility model discloses a clearance adjusting device of an impact crusher, which relates to the technical field of impact crushers and comprises a crushing box and a rotor plate hammer rotatably mounted in the crushing box, a clearance adjusting mechanism is arranged in the crushing box, and a sliding chute is arranged on the inner wall of the front side of the crushing box. The gap adjusting mechanism comprises a two-way screw rod, a supporting plate, a servo motor, two adjusting blocks and two angle-adjustable plates, wherein the two adjusting blocks are symmetrically connected to the two opposite threaded ends of the two-way screw rod in a threaded mode, and the two angle-adjustable plates are sequentially arranged on the two adjusting blocks. According to the utility model, the gap adjusting mechanism is arranged, so that the gap between the two impact plates and the rotor plate hammer can be flexibly adjusted, the discharging granularity of materials can be changed, and the crushing quality can be improved; the angle-adjustable plate body is arranged, the worm is controlled to rotate through the stepping motor, then the worm gear meshed with the worm drives the impact plate on the angle adjusting shaft to rotate, and then the angle of the impact plate can be finely adjusted to meet different crushing requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of impact crushers, in particular to a gap adjusting device for an impact crusher. Background Art

[0002] During the construction phase of the Zhulinkeng project, the raw materials of the construction limestone ore need to be crushed, so an impact crusher will be used. When the impact crusher is working, the raw materials entering the rotor plate hammer action area are mainly crushed by the rotation of the rotor plate hammer and the impact plates on both sides.

[0003] However, during use, the existing impact crusher cannot flexibly adjust the gap between the two impact plates and the rotor hammers, thereby failing to change the discharge particle size of the material, thereby reducing the crushing quality. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a gap adjustment device for an impact crusher.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A gap adjustment device for an impact crusher comprises a crushing box and a rotor plate hammer rotatably installed in the crushing box, wherein a gap adjustment mechanism is provided in the crushing box and a sliding groove is provided on the front inner wall of the crushing box;

[0007] The gap adjustment mechanism includes a bidirectional screw rotatably mounted in the chute, a support plate welded to the side wall of the crushing box, a servo motor fixedly mounted on the top outer wall of the support plate, two adjustment blocks symmetrically screwed on the two opposite threaded ends of the bidirectional screw, and two angle-adjustable plates sequentially mounted on the two adjustment blocks;

[0008] The angle-adjustable plate includes an angle-adjusting shaft rotatably mounted on the adjusting block, a counterattack plate fixedly connected to the angle-adjusting shaft, a protective shell fixedly connected to the outer wall of the adjusting block, a stepping motor fixedly mounted on the inner wall of the bottom of the protective shell, a worm fixedly mounted on the output shaft of the stepping motor, and a worm wheel fixedly mounted on one end of the angle-adjusting shaft and meshing with the worm.

[0009] As a further solution of the present invention, a driver is provided in front of the crushing box, and the driver includes a support frame fixedly connected to the front outer wall of the crushing box, a drive motor fixedly mounted on the side wall of the support frame, a driving bevel gear fixedly mounted on the output shaft of the drive motor, and a driven bevel gear fixedly mounted on one end of the rotor plate hammer and meshing with the driving bevel gear.

[0010] As a further solution of the present invention, a feed port is provided at the top of the crushing box, and a discharge port is provided at the bottom of the crushing box.

[0011] As a further solution of the present invention, the outer walls of the two adjustment blocks are slidably connected to the inner wall of the slide groove, and the two impact plates are symmetrically distributed.

[0012] As a further solution of the present invention, the output shaft of the servo motor is coaxially fixedly connected to one end of the bidirectional screw through a coupling.

[0013] As a further solution of the present invention, two supporting legs are symmetrically welded to the lower outer walls on both sides of the crushing box, and an inspection door is hinged at the rear of the crushing box.

[0014] The beneficial effects of the utility model are:

[0015] 1. A gap adjustment mechanism is provided to flexibly adjust the gap between the two impact plates and the rotor hammer, thereby changing the discharge particle size of the material and helping to improve the crushing quality;

[0016] 2. An angle-adjustable plate is provided. The worm is controlled to rotate by a stepper motor, and then the worm wheel engaged with the worm drives the impact plate on the angle adjustment shaft to rotate. The angle of the impact plate can also be fine-tuned to meet different crushing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall front-view three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model when the maintenance door is open;

[0020] Figure 4 This is a three-dimensional enlarged structural diagram of the gap adjustment mechanism of the present invention;

[0021] Figure 5 This is a three-dimensional enlarged structural diagram of the angle-adjustable plate in the present invention;

[0022] Figure 6 For this utility model Figure 5 Schematic diagram of the three-dimensional enlarged structure of part A;

[0023] Figure 7 It is a schematic diagram of the top structure of the utility model.

[0024] In the figure: 1. Crusher box; 2. Rotor hammer; 3. Bidirectional screw; 4. Support plate; 5. Servo motor; 6. Adjustment block; 7. Angle adjustment shaft; 8. Impact plate; 9. Protective shell; 10. Stepper motor; 11. Worm; 12. Worm gear; 13. Support frame; 14. Drive motor; 15. Driving bevel gear; 16. Driven bevel gear; 17. Inspection door. DETAILED DESCRIPTION

[0025] 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.

[0026] Example

[0027] Reference Figure 1-7 A gap adjustment device for an impact crusher includes a crushing box 1, a chute is provided on the front inner wall of the crushing box 1, a feed port is provided on the top of the crushing box 1, a discharge port is provided on the bottom of the crushing box 1, two supporting legs are symmetrically welded to the lower outer walls of both sides of the crushing box 1, and an inspection door 17 is hinged on the rear of the crushing box 1;

[0028] The crushing box 1 further comprises a rotor hammer 2, which is rotatably mounted in the crushing box 1. A driver for driving the rotor hammer 2 to rotate is provided at the front of the crushing box 1. The driver comprises a support frame 13 fixedly connected to the front outer wall of the crushing box 1, a drive motor 14 fixedly mounted on the side wall of the support frame 13, a driving bevel gear 15 fixedly mounted on the output shaft of the drive motor 14, and a driven bevel gear 16 fixedly mounted on one end of the rotor hammer 2 and meshing with the driving bevel gear 15.

[0029] The invention also includes a gap adjustment mechanism, which is arranged in the crushing box 1 and includes a bidirectional screw 3 rotatably installed in the chute, a support plate 4 welded to the side wall of the crushing box 1, a servo motor 5 fixedly installed on the top outer wall of the support plate 4, two adjustment blocks 6 symmetrically screwed on two opposite threaded ends of the bidirectional screw 3, and two angle-adjustable plates sequentially arranged on the two adjustment blocks 6;

[0030] Furthermore, the angle-adjustable plate includes an angle-adjusting shaft 7 rotatably mounted on the adjustment block 6, a counterattack plate 8 fixedly connected to the angle-adjusting shaft 7, a protective shell 9 fixedly connected to the outer wall of the adjustment block 6, a stepping motor 10 fixedly mounted on the inner wall of the bottom of the protective shell 9, a worm 11 fixedly mounted on the output shaft of the stepping motor 10, and a worm wheel 12 fixedly mounted on one end of the angle-adjusting shaft 7 and meshing with the worm 11;

[0031] Furthermore, the outer walls of the two adjustment blocks 6 are slidably connected to the inner wall of the slide, the two impact plates 8 are symmetrically distributed, and the output shaft of the servo motor 5 is coaxially fixedly connected to one end of the bidirectional screw 3 through a coupling.

[0032] The working principle of this embodiment is as follows: first, the driving motor 14 controls the driving bevel gear 15 to rotate, and then the driven bevel gear 16 meshing with the driving bevel gear 15 drives the rotor plate hammer 2 to rotate at high speed in the crushing box 1. At this time, the raw limestone ore is added into the crushing box 1 from the feed port. When the raw material enters the action area of ​​the rotor plate hammer 2, it collides with the impact plates 8 on both sides and is crushed. Then, the crushed raw material is discharged from the discharge port at the bottom of the crushing box 1;

[0033] Secondly, when the positions of the two impact plates 8 need to be adjusted, the bidirectional screw 3 is controlled to rotate by the servo motor 5. Then, under the limit of the chute, the two adjustment blocks 6 threadedly connected to the bidirectional screw 3 will drive the two impact plates 8 to align and move closer, thereby flexibly adjusting the gap between the two impact plates 8 and the rotor hammer 2, thereby changing the discharge particle size of the material and helping to improve the crushing quality;

[0034] Finally, the worm 11 is controlled to rotate by the stepper motor 10, and then the worm wheel 12 engaged with the worm 11 drives the impact plate 8 on the angle adjustment shaft 7 to rotate, and the angle of the impact plate 8 can be fine-tuned to meet different crushing requirements.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gap adjustment device for an impact crusher, comprising a crushing box (1) and a rotor plate hammer (2) rotatably mounted in the crushing box (1), characterized in that: The crushing box (1) is provided with a gap adjustment mechanism, and a sliding groove is provided on the front inner wall of the crushing box (1); The gap adjustment mechanism comprises a bidirectional screw (3) rotatably mounted in the chute, a support plate (4) welded to the side wall of the crushing box (1), a servo motor (5) fixedly mounted on the top outer wall of the support plate (4), two adjustment blocks (6) symmetrically screwed on two opposite threaded ends of the bidirectional screw (3), and two angle-adjustable plates sequentially arranged on the two adjustment blocks (6); The angle-adjustable plate body comprises an angle-adjusting shaft (7) rotatably mounted on an adjusting block (6), a counter-attack plate (8) fixedly connected to the angle-adjusting shaft (7), a protective shell (9) fixedly connected to the outer wall of the adjusting block (6), a stepping motor (10) fixedly mounted on the inner wall of the bottom of the protective shell (9), a worm (11) fixedly mounted on the output shaft of the stepping motor (10), and a worm wheel (12) fixedly mounted on one end of the angle-adjusting shaft (7) and meshing with the worm (11).

2. The gap adjustment device for an impact crusher according to claim 1, characterized in that: A driver is provided at the front of the crushing box (1), and the driver comprises a support frame (13) fixedly connected to the outer wall of the front of the crushing box (1), a drive motor (14) fixedly mounted on the side wall of the support frame (13), a driving bevel gear (15) fixedly sleeved on the output shaft of the drive motor (14), and a driven bevel gear (16) fixedly sleeved on one end of the rotor plate hammer (2) and meshing with the driving bevel gear (15).

3. The gap adjustment device for an impact crusher according to claim 1, characterized in that: The top of the crushing box (1) is provided with a feed port, and the bottom of the crushing box (1) is provided with a discharge port.

4. The gap adjustment device for an impact crusher according to claim 1, characterized in that: The outer walls of the two regulating blocks (6) are both slidably connected to the inner wall of the chute, and the two impact plates (8) are symmetrically distributed.

5. The gap adjustment device for an impact crusher according to claim 1, characterized in that: The output shaft of the servo motor (5) is coaxially fixedly connected to one end of the bidirectional screw (3) via a coupling.

6. The gap adjustment device for an impact crusher according to claim 1, characterized in that: Two supporting legs are symmetrically welded to the lower outer walls of both sides of the crushing box (1), and an inspection door (17) is hinged at the rear of the crushing box (1).

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