Movable tooth crushing mechanism

By designing a detachable tooth head and cutter head structure in the pulverizer, the problem of high maintenance costs caused by the inability to replace the tooth head and cutter head separately is solved, and an efficient and economical maintenance solution is achieved.

CN120644288APending Publication Date: 2025-09-16NINGBO LINGZHI MASCH TECH CO LTD
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Patent Information

Application Number
CN202510927993.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

In existing pulverizers, the tooth head and cutter head are usually integrated with the stator and rotor and cannot be replaced separately, resulting in high maintenance costs.

Method used

A movable tooth crushing mechanism is designed, in which the tooth head is detachably arranged on the combined stator through a tooth rod, and the cutter head is detachably arranged on the outer peripheral surface of the rotor body through bolts, so that the tooth head and the cutter head can be replaced separately.

Benefits of technology

The detachable design of the tooth head and cutter head improves maintenance efficiency and economy and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a movable tooth crushing mechanism which comprises a crushing machine body, the crushing machine body comprises a combined stator and a combined rotor, and the combined rotor is rotatably arranged in the combined stator; a toothed bar is detachably arranged on the combined stator, and a toothed head is detachably arranged on the toothed bar; the combined rotor comprises a rotor body and a tool bit, and the tool bit is detachably arranged on the peripheral surface of the rotor body. The oscillating tooth crushing mechanism is simple in structure, ingenious in design and practical in function, the abraded tooth head and the abraded tool bit can be independently replaced, and the problem that the maintenance cost is high due to the fact that the tooth head and the tool bit are generally of an integrated structure with the stator and the rotor and cannot be independently replaced is effectively solved.
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Description

Technical Field

[0001] The present invention relates to the field of pulverizers, and in particular to a movable tooth pulverizing mechanism. Background Art

[0002] A pulverizer is a machine that crushes large solid raw materials into the required size. Pulverizers can be divided into coarse crushers, pulverizers, and ultrafine pulverizers according to the size of the crushed or crushed materials. There are four types of external forces applied to the solid during the pulverization process: shearing, impact, rolling, and grinding. Shearing is mainly used in coarse crushing (crushing) and pulverization operations, and is suitable for crushing or pulverizing tough or fibrous materials and large blocks; impact is mainly used in pulverization operations, and is suitable for crushing brittle materials; rolling is mainly used in high-fineness pulverization (ultrafine pulverization) operations, and is suitable for ultrafine pulverization of most materials; grinding is mainly used in ultrafine pulverization or ultra-large pulverization equipment, and is suitable for further pulverization after pulverization. Large pulverizers are mainly suitable for pulverizing mineral products and materials in industries such as metallurgy, building materials, chemicals, mining, highway construction, water conservancy and hydropower, refractory materials, and steel.

[0003] For example, patent application number 2019207340746 discloses a vertical slurry pulverizer. However, its cutter head is integrated with the rotor, and the tooth head is integrated with the stator. During the pulverization process, the cutter head and tooth head are most susceptible to wear and tear, and cannot be replaced separately, resulting in high maintenance costs. Therefore, how to develop a movable tooth pulverization mechanism has become a pressing issue for those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a movable tooth crushing mechanism to solve the problem that the tooth head and the cutter head are usually an integrated structure with the stator and the rotor and cannot be replaced separately, resulting in high maintenance costs.

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

[0006] The present invention provides a movable tooth crushing mechanism, comprising a crusher body, wherein the crusher body comprises a combined stator and a combined rotor, wherein the combined rotor is rotatably arranged in the combined stator; a gear rod is detachably provided on the combined stator, wherein a gear head is detachably provided on the gear rod; and the combined rotor comprises a rotor body and a cutter head, wherein the cutter head is detachably arranged on the outer peripheral surface of the rotor body.

[0007] Furthermore, the tooth head is engaged with the cutter head.

[0008] Furthermore, the combined stator includes a first mounting ring and a second mounting ring, the first mounting ring is arranged above the second mounting ring, the gear rod is arranged vertically, the first mounting ring is provided with a slot that cooperates with the upper end of the gear rod, and the second mounting ring is provided with a slot that cooperates with the lower end of the gear rod; the gear rod is detachably connected to the first mounting ring and the second mounting ring by bolts.

[0009] Furthermore, a slot is provided on the inner side of the gear rod to match the tail of the gear head, and the gear head is detachably arranged in the slot of the gear rod by a hexagon socket bolt.

[0010] Furthermore, a mounting groove cooperating with the tail of the cutter head is provided on the outer peripheral surface of the rotor body, a lug is provided on the tail of the cutter head, and the cutter head is detachably mounted on the rotor body by means of bolts.

[0011] Furthermore, a flange is fixedly provided at the upper end of the first mounting ring, a fixed disk is fixedly provided at the lower end of the second mounting ring, and the combined rotor is rotatably provided on the fixed disk.

[0012] Furthermore, a bearing box is fixedly provided at the bottom end of the fixed plate, and the combined stator is fixedly provided on the base through the bearing box.

[0013] Furthermore, a main shaft is rotatably provided in the bearing box, the top end of the main shaft is connected to the bottom end of the rotor body, and the bottom end of the main shaft is provided with a first pulley.

[0014] Furthermore, an electric motor is provided on the base, a second pulley is provided at the bottom end of the output shaft of the electric motor, and the first pulley and the second pulley are connected by a belt.

[0015] Furthermore, a screen plate is provided between the first mounting ring and the second mounting ring, and the screen plate is spaced apart from the gear rod.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] The tooth heads of the movable tooth crushing mechanism of the present invention are arranged on the combined stator through a tooth rod, so that the tooth rod as a whole is detachable. By replacing the tooth rod, the entire row of tooth heads can be replaced, which is beneficial to improving maintenance efficiency; the tooth heads of the movable tooth crushing mechanism of the present invention are detachably arranged on the tooth rod through a hexagon socket bolt, so that each tooth head can be replaced individually, which improves the economic efficiency of maintenance; the cutter heads of the movable tooth crushing mechanism of the present invention are detachably arranged on the outer peripheral surface of the rotor body, so that each cutter head can be replaced individually, further improving the economic efficiency of maintenance. In general, the movable tooth crushing mechanism of the present invention has a simple structure, an ingenious design, and practical functions. The worn tooth heads and cutter heads can be replaced individually, which effectively solves the problem that the tooth heads and cutter heads are usually an integrated structure with the stator and rotor and cannot be replaced individually, resulting in high maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is an axonometric view of the movable tooth crushing mechanism of the present invention;

[0020] Figure 2 This is a top view of the movable tooth crushing mechanism of the present invention;

[0021] Figure 3 This is a cross-sectional view of the movable tooth crushing mechanism of the present invention;

[0022] Figure 4 This is the axonometric drawing of the combined stator;

[0023] Figure 5 The axonometric drawing of the combined stator does not include the screen plate;

[0024] Figure 6 This is the diagram of the tooth head and the gear rod;

[0025] Figure 7 for Figure 6 Exploded diagram;

[0026] Figure 8 This is the axonometric drawing of the combined stator;

[0027] Figure 9 for Figure 8 Exploded diagram;

[0028] Figure 10 This is a diagram of the movable tooth crushing mechanism in use according to the present invention.

[0029] Explanation of the accompanying symbols: 1. Feed conveyor belt; 2. Fan; 3. Crusher body; 301. Bearing box; 302. Main shaft; 303. Combined stator; 30301. First mounting ring; 30302. Second mounting ring; 30303. Screen plate; 30304. Fixed plate; 30305. Flange; 30306. Rack rod; 30307. Tooth head; 30308. Hexagon socket bolt; 304. Combined rotor; 30401. Rotor body; 30402. Mounting groove; 30403. Cutter head; 305. Motor; 306. Base; 307. First pulley; 308. Second pulley; 4. Powder classifier; 5. Cyclone; 6. Slurry tank. DETAILED DESCRIPTION

[0030] like Figures 1 to 9 As shown, a movable tooth pulverizing mechanism includes a pulverizer body 3 , wherein the pulverizer body 3 includes a base 306 , a motor 305 , a combined stator 303 and a combined rotor 304 .

[0031] The combined rotor 304 is rotatably disposed within the combined stator 303. A gear rod 30306 is detachably disposed on the combined stator 303, and several tooth heads 30307 are detachably disposed on the gear rod 30306. The combined rotor 304 includes a rotor body 30401 and cutter heads 30403. Several cutter heads 30403 are detachably disposed on the outer circumference of the rotor body 30401. The tooth heads 30307 mesh with the cutter heads 30403.

[0032] Specifically, the combined stator 303 includes a first mounting ring 30301 and a second mounting ring 30302. The first mounting ring 30301 is positioned above the second mounting ring 30302. The gear rod 30306 is vertically arranged. The first mounting ring 30301 defines a slot that engages with the upper end of the gear rod 30306, while the second mounting ring 30302 defines a slot that engages with the lower end of the gear rod 30306. The gear rod 30306 is detachably connected to the first and second mounting rings 30301 and 30302 via bolts. The tooth heads 30307 of the movable tooth pulverizing mechanism of the present invention are mounted on the combined stator 303 via the gear rod 30306, making the gear rod 30306 entirely detachable. By replacing the gear rod 30306, the entire row of gear heads 30307 can be replaced, thereby improving maintenance efficiency.

[0033] A screen plate 30303 is provided between the first mounting ring 30301 and the second mounting ring 30302 , and the screen plate 30303 is spaced apart from the gear rod 30306 .

[0034] The inner side of the tooth rod 30306 is provided with a slot that mates with the tail end of the tooth head 30307. The tooth head 30307 is removably mounted in the slot of the tooth rod 30306 via a hexagon socket head bolt 30308. The tooth heads 30307 of the movable tooth pulverizing mechanism of the present invention are removably mounted on the tooth rod 30306 via the hexagon socket head bolt 30308, allowing each tooth head 30307 to be individually replaced, improving maintenance efficiency.

[0035] The outer circumference of the rotor body 30401 is provided with a mounting slot 30402 that mates with the tail of the cutter head 30403. The tail of the cutter head 30403 is provided with a lug, and the cutter head 30403 is detachably mounted on the rotor body 30401 via bolts. The cutter heads 30403 of the movable tooth pulverizing mechanism of the present invention are detachably mounted on the outer circumference of the rotor body 30401, allowing each cutter head 30403 to be individually replaced, further improving maintenance efficiency.

[0036] The cutter head 30403 and the tooth head 30307 can be made of wear-resistant materials or use wear-resistant coatings to increase service life, without the need for the entire combined rotor 304 and the combined stator 303 to be made of wear-resistant materials, thereby reducing manufacturing costs and usage costs.

[0037] The upper end of the first mounting ring 30301 is fixedly provided with a flange 30305 for mounting the outer shell of the crusher. The lower end of the second mounting ring 30302 is fixedly provided with a fixed plate 30304 on which the combined rotor 304 is rotatably mounted.

[0038] A bearing housing 301 is fixedly mounted at the bottom end of the fixed disk 30304, and the assembled stator 303 is fixed to the base 306 via the bearing housing 301. A main shaft 302 is rotatably mounted within the bearing housing 301. The top end of the main shaft 302 is connected to the bottom end of the rotor body 30401, and a first pulley 307 is mounted at the bottom end of the main shaft 302. An electric motor 305 is mounted on the base 306, and a second pulley 308 is mounted at the bottom end of the output shaft of the electric motor 305. The first pulley 307 and the second pulley 308 are connected by a belt.

[0039] like Figure 10 As shown, the working state of the present invention is:

[0040] The ore arrives at the crusher body 3 via the feed conveyor 1, and the crushed ore powder is sent to the powder concentrator 4 through the negative pressure fan 2. The powder concentrator 4 will drop the unqualified ore powder back into the crusher body 3, mix it with the ore and then crush it again; the qualified ore powder is sent to the cyclone 5, where the ore powder undergoes gas-solid separation. The solid settles at the bottom of the cyclone 5, and the gas is discharged from the air outlet of the cyclone 5 and sent back to the inlet of the fan 2 along the return air duct; the ore powder separated from the bottom of the cyclone 5 falls into the slurry tank 6, where it is mixed with water to form qualified ore slurry, which is pumped to the finished slurry pool, completing the ore crushing and pulping.

[0041] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A movable tooth crushing mechanism, characterized by: The invention comprises a pulverizer body (3), wherein the pulverizer body (3) comprises a combined stator (303) and a combined rotor (304), wherein the combined rotor (304) is rotatably arranged in the combined stator (303); a tooth bar (30306) is detachably arranged on the combined stator (303), and a tooth head (30307) is detachably arranged on the tooth bar (30306); and the combined rotor (304) comprises a rotor body (30401) and a cutter head (30403), wherein the cutter head (30403) is detachably arranged on the outer peripheral surface of the rotor body (30401).

2. The movable tooth crushing mechanism according to claim 1, characterized in that: The tooth head (30307) is engaged with the cutter head (30403).

3. The movable tooth crushing mechanism according to claim 1, characterized in that: The combined stator (303) includes a first mounting ring (30301) and a second mounting ring (30302), wherein the first mounting ring (30301) is arranged above the second mounting ring (30302), and the gear rod (30306) is arranged vertically. The first mounting ring (30301) is provided with a slot that cooperates with the upper end of the gear rod (30306), and the second mounting ring (30302) is provided with a slot that cooperates with the lower end of the gear rod (30306); the gear rod (30306) is detachably connected to the first mounting ring (30301) and the second mounting ring (30302) by bolts.

4. The movable tooth crushing mechanism according to claim 1, characterized in that: A slot that cooperates with the tail of the tooth head (30307) is provided on the inner side of the tooth rod (30306), and the tooth head (30307) is detachably arranged in the slot of the tooth rod (30306) by a hexagon socket bolt (30308).

5. The movable tooth crushing mechanism according to claim 1, characterized in that: The outer peripheral surface of the rotor body (30401) is provided with a mounting groove (30402) that cooperates with the tail of the cutter head (30403), and the tail of the cutter head (30403) is provided with a lug, and the cutter head (30403) is detachably arranged on the rotor body (30401) by means of bolts.

6. The movable tooth crushing mechanism according to claim 3, characterized in that: A flange (30305) is fixedly provided at the upper end of the first mounting ring (30301), a fixed disk (30304) is fixedly provided at the lower end of the second mounting ring (30302), and the combined rotor (304) is rotatably provided on the fixed disk (30304).

7. The movable tooth crushing mechanism according to claim 6, characterized in that: A bearing box (301) is fixedly provided at the bottom end of the fixed plate (30304), and the combined stator (303) is fixedly provided on the base (306) via the bearing box (301).

8. The movable tooth crushing mechanism according to claim 7, characterized in that: A main shaft (302) is rotatably provided in the bearing box (301), the top end of the main shaft (302) is connected to the bottom end of the rotor body (30401), and a first pulley (307) is provided at the bottom end of the main shaft (302).

9. The movable tooth crushing mechanism according to claim 8, characterized in that: The base (306) is provided with a motor (305), the bottom end of the output shaft of the motor (305) is provided with a second pulley (308), and the first pulley (307) and the second pulley (308) are connected by a belt.

10. The movable tooth crushing mechanism according to claim 3, characterized in that: A screen plate (30303) is provided between the first mounting ring (30301) and the second mounting ring (30302), and the screen plate (30303) is spaced apart from the gear rod (30306).