A single shaft crusher

Abstract

The present invention discloses a single-shaft pulverizer, including a pulverizer frame, a pulverizer housing, a chip hood, a reducer, a coupling, a pulverizer shaft, a cutter head, a bottom screen, and an electronic control module; the pulverizer housing and the reducer are fixed on the pulverizer frame, the pulverizer shaft is arranged in the pulverizer housing, and both ends are fixed to the shell of the pulverizer housing through bearings, the cutter head is fixed to the pulverizer shaft by bolts, a plurality of holes are arranged on the bottom screen, and the bottom screen is arranged at the lower part of the pulverizer housing, and during operation, the minimum distance between the cutter head and the bottom screen is less than or equal to 3mm; the reducer is connected to the pulverizer shaft through a coupling; the electronic control module controls the forward or reverse rotation of the reducer. Therefore, the single-shaft pulverizer of the present invention crushes iron filings by shearing the cutter head and the mesh of the bottom screen, and the iron filings crushing specifications are highly consistent and the effect is good. The installation method of the cutter head is simple and easy to disassemble, which greatly improves the service life of the knife.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, in particular to a single-shaft crusher. Background Art

[0002] During the machining process, the long chips generated by machine tool machining accumulate and take up a large space, and are easily oxidized when exposed to the air.

[0003] In the process of recycling iron chips, they are usually pressed into blocks by a briquetting machine and then recycled. Before briquetting, the iron chips must be cut by a crusher. The most important working part of the crusher is the internal crushing knife. The crushers on the market, especially the single-axis crushers, have complex knives, which increases the production cost and difficulty of the knives, and increases the cost of iron chips management for enterprises. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a single-shaft crusher.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A single-shaft pulverizer includes a pulverizer frame, a pulverizer housing, a chip reversing cover, a speed reducer, a coupling, a pulverizer shaft, a cutter head, a bottom screen, and an electric control module;

[0007] The crusher housing and the reducer are fixed on the crusher frame, the crusher shaft is arranged in the crusher housing, and both ends are fixed on the shell of the crusher housing through bearings, the cutter head is fixed on the crusher shaft through bolts, a plurality of holes are arranged on the bottom screen, and the bottom screen is arranged at the lower part of the crusher housing, and during operation, the minimum distance between the cutter head and the bottom screen is less than or equal to 3mm; the reducer is connected to the crusher shaft through a coupling; the electric control module controls the forward or reverse rotation of the reducer;

[0008] Compared with the prior art, the present invention has the following technical effects:

[0009] When iron chips enter the crusher box through the chip reversing cover, the crusher reducer drives the crusher shaft to rotate. At this time, the long chips and the short chips drive the chips to rotate under the action of the long knife and the short knife. During the rotation process, the gap between the long knife and the short knife and the bottom screen is less than or equal to 3mm. When the chips fall into the crusher box, the chips are rotated forward and reversely by the rotating knife. Due to the compression of the bottom space, the chips are squeezed into the screen holes and cut off by the shear force of the screen holes and the knife, thereby crushing the chips.

[0010] The crushed chips fall through the bottom screen, and the size of the mesh of the bottom screen can be adjusted to determine the length of the chip crushing. When the bottom screen reaches the end of its life or is replaced with another model of bottom screen, the bottom screen can be removed and replaced.

[0011] The single-shaft crusher of this scheme crushes iron filings by shearing the cutter head with the mesh of the bottom screen. The iron filings are crushed with high consistency and good effect. The installation method of the cutter head is simple and easy to disassemble.

[0012] Based on the above technical solution, the present invention can also be improved as follows.

[0013] Further, the bottom screen is V-shaped;

[0014] The beneficial effect of adopting the above further solution is that the shearing position between the cutter head and the screen can be increased, thereby improving the crushing efficiency.

[0015] Furthermore, it also includes a wear-resistant lining plate, which is fixed to the crusher housing by bolts.

[0016] The beneficial effect of adopting the above further solution is that the wear-resistant lining plate is detachable and replaceable, which is convenient for replacement and maintenance, and greatly improves the service life of the crusher housing.

[0017] Furthermore, the coupling is a chain sprocket coupling.

[0018] The beneficial effect of adopting the above further solution is to avoid damage to the shaft and the reducer due to coaxiality changes.

[0019] Furthermore, it also includes a screen support plate, which is arranged below the bottom screen and contacts the bottom screen to support the bottom screen;

[0020] The beneficial effect of adopting the above further solution is to reduce the requirements on the strength of the screen itself and increase the overall service life of the device.

[0021] Furthermore, it also includes a proximity switch sensing plate and a proximity switch; the proximity switch is fixed to one end of the pulverizer shaft, the proximity switch is installed on a proximity switch bracket, and the proximity switch sensing plate is correspondingly arranged with the proximity switch.

[0022] The beneficial effect of adopting the above further solution is that the rotation of the pulverizer shaft can be detected, and when rotation jam occurs, information can be provided to the electronic control module in a timely manner so that protective measures can be taken.

[0023] Furthermore, it also includes a bearing protection cover, a coupling protection cover, and a proximity switch protection cover.

[0024] The beneficial effect of adopting the above further solution is that the bearings, couplings and proximity switches can be kept clean and debris can be prevented from entering and affecting the service life.

[0025] Furthermore, an alarm device is also included.

[0026] The beneficial effect of adopting the above further solution is that when the equipment is stuck or the like, an alarm message can be promptly issued to the outside to prompt the staff to intervene.

[0027] Furthermore, the knife head includes a long knife and a short knife, and the long knife and the short knife are both in a rectangular shape and are provided with blades at both ends.

[0028] The beneficial effect of adopting the above-mentioned further scheme is that it is suitable for long strips of iron filings and lumps of iron filings, and has a simple structure and is easy to process, which reduces the cost and production difficulty of making the tool. In addition, both ends are provided with blades, and the mounting surfaces are provided with countersunk screw holes. When the blade at one end is worn, the direction can be reversed for installation, thereby greatly improving the service life of the knife.

[0029] Furthermore, the long knives and the short knives are arranged in a staggered manner.

[0030] The beneficial effect of adopting the above further solution is that the crusher cutters are installed at intervals and in a four-sided surrounding manner on the crusher rotating shaft, which greatly reduces the problem of reducer overload when crushing iron filings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the single-shaft pulverizer;

[0032] Figure 2 This is the auxiliary view of the structure diagram of the single-shaft pulverizer;

[0033] Figure 3 This is the internal cross-sectional view of the single-shaft pulverizer;

[0034] Figure 4 This is the internal exploded diagram of this single-shaft pulverizer;

[0035] Figure 5 This is the exploded view of the single-shaft pulverizer assembly;

[0036] Figure 6 This is the bottom screen diagram of this single-shaft pulverizer;

[0037] Figure 7 This is a schematic diagram of the long blade structure of the single-shaft crusher;

[0038] Figure 8 This is a schematic diagram of the short blade structure of the single-shaft crusher;

[0039] In the accompanying drawings, the component names represented by the reference numerals are listed as follows:

[0040] 1. Crusher frame; 2. Crusher housing; 3. Chip hood; 4. Coupling protection cover; 5. Electronic control module; 6. Speed ​​reducer; 7. Bearing protection cover; 8. First wear-resistant lining; 9. Second wear-resistant lining; 10. Short knife; 11. Crusher shaft; 12. Bottom screen; 13. Screen support plate; 14. Proximity switch; 15. Proximity switch sensor plate; 16. Bearing; 17. Long knife; 18. Coupling. DETAILED DESCRIPTION

[0041] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0042] Please refer to Figure 1-Figure 6 As shown, the single-shaft pulverizer includes a pulverizer frame 1, a pulverizer housing 2, a chip reversing cover 3, a reducer 6, a coupling 18, a pulverizer shaft 11, a cutter head, a bottom screen 12, and an electronic control module 5;

[0043] The crusher housing 2 and the reducer 6 are fixed on the crusher frame 1. The crusher shaft 11 is arranged in the crusher housing 2, and the two ends are fixed on the shell of the crusher housing 2 through bearings 16. The cutter head includes a long knife 17 and a short knife 10, which are fixed on the crusher shaft 11 by bolts. The bottom screen 12 is provided with a plurality of screen holes, and the bottom screen 12 is arranged at the lower part of the crusher housing 2. During operation, the minimum distance between the cutter head and the bottom screen 12 is 2mm; the reducer 6 is connected to the crusher shaft 11 through a coupling 18; the electric control module 5 controls the reducer 6 to rotate forward or reverse. There is a wear-resistant lining inside the crusher housing 2, and the wear-resistant lining includes a first wear-resistant lining 8 and a second wear-resistant lining 9, which are fixed on the crusher housing 2 by bolts. In order to ensure the stable operation of the protection device, a proximity switch 14 is installed at one end of the crusher shaft 11, and the proximity switch 14 is installed on the proximity switch bracket, and the rotation of the crusher shaft 11 is monitored in real time. Protective covers are added at the coupling 18 and the proximity switch 14 to protect the cleanliness of the connecting parts and the sensor.

[0044] Its important component is to crush the long chips and agglomerated chips of machine tools.

[0045] The long knife 17 and the short knife 10 on the pulverizer shaft 11 are configured with knives of corresponding materials according to the actual chip type and material of the chips. The long knife 17 and the short knife 10 of the pulverizer are fixed to the pulverizer shaft 11 by bolts, and the installation and disassembly are convenient and simple.

[0046] When iron chips enter the crusher case 2 through the chip reversing cover, the crusher reducer 6 drives the crusher shaft 11 to rotate. At this time, the long chips and the group chips are driven to rotate by the long knife 17 and the short knife 10. The gap between the long knife 17 and the short knife 10 and the bottom screen 12 during rotation is 2 mm. When the chips fall into the crusher case 2, the chips are rotated forward and reversely by the rotating knife. When the long knife 17 and the short knife 10 rotate, the chips are squeezed into the screen holes due to the compression of the bottom space. They are cut off by the shear force of the screen holes and the knife, thereby crushing the chips.

[0047] The crushed crumbs fall through the bottom screen 12, and the size of the mesh holes of the bottom screen 12 can be adjusted to determine the length of the crushed crumbs. (The larger the mesh holes, the longer the crushed crumbs. The smaller the mesh holes, the shorter the crushed crumbs.) When the bottom screen 12 reaches the end of its life or is replaced with another model of the bottom screen 12, the bottom screen 12 can be removed and replaced.

[0048] like Figure 7 and Figure 8 As shown, the long knife 17 and the short knife 10 are both rectangular structures with blades at both ends. The screw holes on the mounting surfaces are all countersunk. When the blade at one end is worn, it can be removed and reinstalled in a different direction, and the blade at the other end can be used to continue working, which greatly extends the working time of a single blade head.

[0049] The rotation mode of the reducer 6 is controlled by the electric control box. After normal startup, the single-shaft crusher normally rotates forward for 30 seconds and reverse for 30 seconds, and works alternately in forward and reverse rotation.

[0050] When the chip type and chip material change, the forward and reverse rotation time of the grinder can be adjusted by adjusting the time relay button in the electric control box. When the grinder housing 2 has too much chips and causes a jam, a proximity switch sensing plate 15 is installed at one end of the grinder rotating shaft, and the proximity switch 14 cannot detect the rotation of the proximity switch sensing plate 15, and an alarm is issued to prompt the jam event. When a jam event occurs, the PLC program in the electric control box controls the reducer 6 to rotate in the opposite direction immediately to resolve the jam problem. When the jam problem is resolved, the reducer 6 will continue to work normally.

[0051] When the jamming problem persists, the buzzer on the electric control box will sound an alarm and the alarm light on the electric control box will flash, prompting the staff to handle the alarm problem.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-shaft pulverizer, characterized in that: The single-shaft crusher is used for crushing iron chips, and includes a crusher frame, a crusher housing, a chip reversing cover, a reducer, a coupling, a crusher shaft, a cutter head, a bottom screen, and an electronic control module; The crusher housing and the reducer are fixed on the crusher frame, the crusher shaft is arranged in the crusher housing, and both ends are fixed to the shell of the crusher housing through bearings, and the cutter head is fixed to the crusher shaft through bolts; the bottom screen is provided with a plurality of holes, and the bottom screen is arranged at the lower part of the crusher housing. During operation, the minimum distance between the cutter head and the bottom screen is less than or equal to 3 mm. When the chips fall into the crusher housing, the chips are squeezed into the screen holes through the rotation of the cutter head, and are cut off under the shear force of the screen holes and the cutter, so that the chips are crushed; the reducer is connected to the crusher shaft through the coupling; the electric control module controls the forward or reverse rotation of the reducer; the bottom screen is V-shaped; It also includes an alarm device, which is electrically connected to the electric control module and includes a buzzer and an alarm light.

2. The single-shaft pulverizer according to claim 1, characterized in that: It also includes a wear-resistant lining plate, which is fixed to the pulverizer housing by bolts.

3. The single-shaft pulverizer according to claim 1 or 2, characterized in that: The coupling is a chain sprocket coupling.

4. The single-shaft pulverizer according to claim 1 or 2, characterized in that: It also includes a screen supporting plate, which is arranged below the bottom screen.

5. The single-shaft pulverizer according to claim 1 or 2, characterized in that: It also includes a proximity switch sensing plate and a proximity switch; the proximity switch is fixed to one end of the pulverizer shaft, the proximity switch is installed on a proximity switch bracket, the proximity switch sensing plate is correspondingly arranged with the proximity switch, and the proximity switch is electrically connected to the electric control module.

6. The single-shaft pulverizer according to claim 1 or 2, characterized in that: It also includes bearing protection covers, coupling protection covers and proximity switch protection covers.

7. The single-shaft pulverizer according to claim 1 or 2, characterized in that: The knife head comprises a long knife and a short knife. The long knife and the short knife are in a rectangular shape and are provided with blades at both ends.

8. The single-shaft pulverizer according to claim 7, characterized in that: The long sword and the short sword are arranged in a circle with intervals.

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