CN113457828B - Torque limiter for crusher - Google Patents
Torque limiter for crusher Download PDFInfo
- Publication number
- CN113457828B CN113457828B CN202110759986.0A CN202110759986A CN113457828B CN 113457828 B CN113457828 B CN 113457828B CN 202110759986 A CN202110759986 A CN 202110759986A CN 113457828 B CN113457828 B CN 113457828B
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- China
- Prior art keywords
- connecting part
- shaft connecting
- shell
- torque
- crusher
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/04—Safety devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
- B08B17/04—Preventing deposition of fouling or of dust by using removable coverings
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a torque limiter for a crusher, comprising: the invention arranges a radial groove on the contact surface of the second shaft connecting part and the torque limiting component, a slide block is clamped in the groove, and a dustproof sheet is fixed on the upper surface of the shell, the lower surface of the other side of the dustproof sheet is provided with an inverted cone which is clamped in a recess at the edge of the shell, when the motor is not in operation, the dustproof sheet is attached to the surface of the torque limiting component to prevent dust from entering, and when the motor is driven to operate, due to the action of centrifugal force, the slide block slides towards the direction of the far axis to drive the dustproof sheet to open, meanwhile, the heat dissipation strip can quickly dissipate heat and play a role of stirring air flow together with the opened dustproof sheet to prevent dust, when the torque exceeds a rated value, the shell is separated from the torque limiting assembly, and the inverted cone of the dustproof sheet is separated from the recess under the action of the torque and cannot be damaged.
Description
Technical Field
The invention belongs to the field of machining of mechanical parts, and particularly relates to a torque limiter for a crusher.
Background
The torque limiter, which is a component connecting the prime mover and the working machine, mainly functions as an overload protector, also called torque limiter, safety coupling, or safety clutch, and when the required torque exceeds a set value due to overload or mechanical failure, it limits the torque transmitted by the transmission system in a slip manner, and when the overload situation disappears, the coupling is restored, thus preventing mechanical damage and avoiding expensive shutdown loss. The torque limiter is mainly applied to industries such as printing equipment, battery industry, scrap iron conveyors, conveying production lines, dividers and the like. However, in practical use, especially in a working environment with a lot of dust such as a crusher, a gap is left between the overload protection part of the torque limiter and the outside, which may affect the use due to dust falling in for a long time, and is not favorable for heat dissipation if completely shielded.
Disclosure of Invention
The invention provides a torque limiter for a crusher, aiming at the problems of the existing torque limiter, and the structure of the torque limiter comprises the following components: the torque limiting structure comprises a shell positioned on the outer side and a torque limiting assembly arranged on the inner side of the shell, wherein the shell is fixed with the first shaft connecting part, the torque limiting assembly is fixed with the second shaft connecting part, a plurality of radial grooves are formed in the surface, facing the second shaft connecting part, of the torque limiting assembly, a spring is fixed at one end, close to the shaft center, in each groove, the other end of the spring is fixed with a sliding block, the sliding block slides in the grooves, a plurality of dustproof sheets are arranged on one side, facing the second shaft connecting part, of the shell, spliced into a ring shape and cover the gap between the shell and the second shaft connecting part, and the end, close to the shaft center, of each dustproof sheet is fixed on one sliding block through bolts; the casing outer wall is equipped with a plurality of convex heat dissipation strips, and is the spiral setting along the axial, and every heat dissipation strip divide into a plurality of sections that do not connect.
Preferably, the dustproof sheet has eight pieces, the groove has eight pieces and equally divides the surface of the torque limiting assembly facing the second shaft connecting part into eight regions, and one dustproof sheet is fixed in each region.
Preferably, the connection mode of the dust-proof sheet and the shell is that the lower surface of one side of the dust-proof sheet far away from the axial center is provided with a protruding sphere or an inverted cone which is clamped in a recess matched with the protruding sphere or the inverted cone on the side edge of the shell.
Preferably, the dust-proof sheet is made of rubber.
Preferably, each dustproof sheet is internally wrapped with two radial plastic reinforcing ribs.
Preferably, the first shaft connecting part is connected with a driving shaft/driven shaft, and the second connecting part is connected with a driven shaft/driving shaft.
Preferably, when the spring is in the free length, the dustproof sheet connected with the spring through the sliding block is free from radial tension.
Preferably, the longitudinal section of the connecting part between the dust-proof sheets is inverted Z-shaped.
Preferably, the torque limiting assembly is a ball or friction type torque limiting assembly.
In the invention, the contact surface of the second shaft connecting part and the torque limiting component is provided with a radial groove, a sliding block is clamped in the groove, and a dustproof sheet is fixed on the upper surface of the shell, the lower surface of the other side of the dustproof sheet is provided with an inverted cone which is clamped in a recess at the edge of the shell, when the motor is not in operation, the dustproof sheet is attached to the surface of the torque limiting component to prevent dust from entering, and when the motor is driven to operate, due to the action of centrifugal force, the slide block slides towards the direction of the far axis center to drive the dustproof sheet to open, thereby not affecting the heat dissipation, meanwhile, the spiral multi-section heat dissipation strip can quickly dissipate heat, and plays a role of stirring air flow together with the opened dustproof sheet, thereby having certain dustproof strengthening effect, when the torque exceeds a rated value, the shell is separated from the torque limiting assembly, and the inverted cone of the dustproof sheet is separated from the recess and cannot be damaged due to the action of the torque.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of the present invention in a non-operating state.
FIG. 2 is a schematic longitudinal cross-sectional view of the present invention in a non-operating state.
Fig. 3 is a side view of the present invention.
Fig. 4 is a partially enlarged view of the dust-proof sheet connecting portion.
FIG. 1 shows a first shaft connecting part; 2. a second shaft connecting portion; 3. a torque limiting structure; 11. a housing; 12. a dust-proof sheet; 13. a heat dissipating strip; 21. A torque limiting assembly; 121. an inverted cone; 211. a groove; 212. a slider; 213. a spring; 214. and (4) bolts.
Detailed Description
Example 1
As shown in fig. 1 to 3, an embodiment of a torque limiter for a crusher according to the present invention has a structure including: a first shaft connecting part 1, a second shaft connecting part 2 and a torque limiting structure 3 used for overload protection between the first shaft connecting part and the second shaft connecting part, the torque limiting structure 3 comprises a shell 11 at the outer side and a torque limiting component 21 arranged at the inner side of the shell 11, wherein the shell 11 is fixed with the first shaft connecting part 1, the torque limiting component 21 is fixed with the second shaft connecting part 2, a plurality of radial grooves 211 are arranged on the surface of the torque limiting component 21 facing the second shaft connecting part 2, a spring 213 is fixed at one end of the groove 211 near the shaft center, the other end of the spring 213 is fixed with the sliding block 212, the sliding block 212 slides in the groove 211, a plurality of dustproof sheets 12 are arranged on one side of the shell 11 facing the second shaft connecting part 2, the dustproof sheets 12 are spliced into a ring shape, the gap between the shell 11 and the second shaft connecting part 2 is covered, and the end close to the shaft center of each dustproof sheet 12 is fixed on a sliding block 212 through a bolt 214; the outer wall of the shell 11 is provided with a plurality of protruding radiating strips 13 which are spirally arranged along the axial direction, and each radiating strip 13 is divided into a plurality of unconnected sections.
More specifically, the dust-proof sheet 12 has eight pieces, and the recess 211 has eight pieces and equally divides the surface of the torque limiter block 21 facing the second shaft connecting portion 2 into eight regions, each of which holds one dust-proof sheet 12.
More specifically, the dust-proof sheet 12 is connected to the housing 11 in such a manner that a protruding ball or inverted cone 121 is disposed on the lower surface of the dust-proof sheet 12 at the side far from the axial center, and is inserted into a recess of the side edge of the housing 11 matching with the protruding ball or inverted cone.
More specifically, the dust-proof sheet 12 is made of rubber.
More specifically, each dust-proof sheet 12 includes two radial plastic ribs.
More specifically, the first shaft connecting portion 1 is connected with a driving shaft/driven shaft, and the second connecting portion is connected with a driven shaft/driving shaft.
More specifically, when the spring 213 is in a free length, the dust-proof sheet 12 connected to the spring 213 via the slider 212 is not subjected to a radial tensile force.
More specifically, the torque limiting assembly 21 is a ball type torque limiting assembly 21.
Example 2
As shown in fig. 1 to 4, another embodiment of the torque limiter for a crusher according to the present invention is constructed to include: a first shaft connecting part 1, a second shaft connecting part 2 and a torque limiting structure 3 used for overload protection between the first shaft connecting part and the second shaft connecting part, the torque limiting structure 3 comprises a housing 11 at the outer side and a torque limiting assembly 21 arranged at the inner side of the housing 11, wherein the shell 11 is fixed with the first shaft connecting part 1, the torque limiting component 21 is fixed with the second shaft connecting part 2, a plurality of radial grooves 211 are arranged on the surface of the torque limiting component 21 facing the second shaft connecting part 2, a spring 213 is fixed at one end of the groove 211 near the shaft center, the other end of the spring 213 is fixed with the sliding block 212, the sliding block 212 slides in the groove 211, a plurality of dustproof sheets 12 are arranged on one side of the shell 11 facing the second shaft connecting part 2, the dustproof sheets 12 are spliced into a ring shape, the gap between the housing 11 and the second shaft connecting part 2 is covered, and the end of each dustproof sheet 12 close to the shaft center is fixed on a sliding block 212 through a bolt 214; the outer wall of the shell 11 is provided with a plurality of protruding radiating strips 13 which are spirally arranged along the axial direction, and each radiating strip 13 is divided into a plurality of unconnected sections.
More specifically, the dust-proof sheet 12 has eight pieces, and the recess 211 has eight pieces and equally divides the surface of the torque limiter block 21 facing the second shaft connecting portion 2 into eight regions, each of which holds one dust-proof sheet 12.
More specifically, the dust-proof sheet 12 is connected to the housing 11 in such a manner that the lower surface of the dust-proof sheet 12 on the side far from the axial center has a protruding inverted cone 121, which is inserted into a recess matching with the side edge of the housing 11.
More specifically, the dust-proof sheet 12 is made of rubber.
More specifically, each dustproof sheet 12 includes two radial plastic ribs.
More specifically, the first shaft connecting portion 1 is connected to a driving shaft/driven shaft, and the second connecting portion is connected to a driven shaft/driving shaft.
More specifically, when the spring 213 is in a free length, the dust-proof piece 12 connected to the spring 213 via the slider 212 is not subjected to a radial tensile force, so that the dust-proof piece can be covered on the gap under a non-working condition, and can be driven to open even with a low centrifugal force under a working condition.
More specifically, the longitudinal section of the connection portion between the dust-proof sheets 12 is inverted Z-shaped, which makes it easier to prevent dust from falling.
More specifically, the torque limiting assembly 21 is a friction type torque limiting assembly.
The design key points of the invention are that the contact surface of the second shaft connecting part and the torque limiting component is provided with a radial groove, a sliding block is clamped in the groove, a dustproof sheet is fixed on the upper surface of the shell, an inverted cone is arranged on the lower surface of the other side of the dustproof sheet and is clamped in a recess on the edge of the shell, when the motor is not in operation, the dustproof sheet is attached to the surface of the torque limiting component to prevent dust from entering, and when the motor is driven to operate, because of the centrifugal force, the slide block slides towards the direction of the far axle center to drive the dustproof sheet to open without influencing the heat dissipation, meanwhile, the spiral multi-section heat dissipation strip can quickly dissipate heat, and plays a role of stirring air flow together with the opened dustproof sheet, thereby having certain dustproof strengthening effect, when the torque exceeds a rated value, the shell is separated from the torque limiting assembly, and the inverted cone of the dustproof sheet is separated from the recess under the action of the torque, so that the dustproof sheet is not damaged.
It should be noted that the torque limiting assembly 21 of the present invention is of a ball type or a friction type, the principle and structure of overload detachment thereof are well known in the art, and the common parts thereof, i.e. the housing of the present invention and the surface facing the second shaft connecting portion, are inevitably present.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a torque limiter for breaker, includes first axle connecting portion, second axle connecting portion and the torque limiting structure who is used for overload protection between the two, its characterized in that: the torque limiting structure comprises a shell positioned on the outer side and a torque limiting assembly arranged on the inner side of the shell, wherein the shell is fixed with a first shaft connecting part, the torque limiting assembly is fixed with a second shaft connecting part, a plurality of radial grooves are formed in the surface, facing the second shaft connecting part, of the torque limiting assembly, a spring is fixed at one end, close to the axis, in each groove, the other end of the spring is fixed with a sliding block, the sliding block slides in the grooves, a plurality of dustproof sheets are arranged at one side, facing the second shaft connecting part, of the shell, the dustproof sheets are spliced into a ring shape and cover gaps between the shell and the second shaft connecting part, and the end, close to the axis, of each dustproof sheet is fixed on one sliding block through bolts; the casing outer wall is equipped with a plurality of convex heat dissipation strips, and is the spiral setting along the axial, and every heat dissipation strip divide into a plurality of sections that do not connect.
2. The torque limiter for a crusher of claim 1, wherein: the torque limiting assembly comprises a first shaft connecting part, a second shaft connecting part and a plurality of dustproof sheets, wherein the first shaft connecting part is arranged at the front end of the first shaft connecting part, the second shaft connecting part is arranged at the rear end of the first shaft connecting part, the first shaft connecting part is arranged at the rear end of the first shaft connecting part, and the second shaft connecting part is arranged at the rear end of the first shaft connecting part; the longitudinal sections of the grooves and the sliding blocks are trapezoidal.
3. The torque limiter for a crusher of claim 2, wherein: the dustproof sheet and the shell are connected in a mode that a protruding ball or an inverted cone is arranged on the lower surface of one side of the far axis of the dustproof sheet and is clamped into a recess matched with the lower surface of the side edge of the shell.
4. The torque limiter for a crusher of claim 3, wherein: the dustproof sheet is made of rubber.
5. The torque limiter for a crusher of claim 4, wherein: each dustproof sheet is internally wrapped with two radial plastic reinforcing ribs.
6. The torque limiter for a crusher of claim 5, wherein: the first shaft connecting part is connected with the driving shaft/driven shaft, and the second shaft connecting part is connected with the driven shaft/driving shaft.
7. The torque limiter for a crusher of claim 6, wherein: when the spring is in the free length, the dustproof sheet connected with the spring through the sliding block is free from radial tension.
8. The torque limiter for a crusher of claim 7, wherein: the longitudinal section of the connecting part between the dustproof sheets is inverted Z-shaped.
9. The torque limiter for a crusher of any one of claims 1 to 8, wherein: the torque limiting assembly is a ball or friction type torque limiting assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110759986.0A CN113457828B (en) | 2021-07-05 | 2021-07-05 | Torque limiter for crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110759986.0A CN113457828B (en) | 2021-07-05 | 2021-07-05 | Torque limiter for crusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113457828A CN113457828A (en) | 2021-10-01 |
| CN113457828B true CN113457828B (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110759986.0A Active CN113457828B (en) | 2021-07-05 | 2021-07-05 | Torque limiter for crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113457828B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3373852A (en) * | 1965-05-20 | 1968-03-19 | Gen Motors Corp | Safety coupling |
| DE19860150B4 (en) * | 1998-12-24 | 2004-06-24 | Winkelmann Palsis Motortechnik Gmbh & Co.Kg | Device for transmitting torque from an internal combustion engine to a compressor |
| JP4471061B2 (en) * | 2001-08-30 | 2010-06-02 | Ｎｏｋ株式会社 | Power transmission device |
| CN101210593A (en) * | 2006-12-26 | 2008-07-02 | 上海三电贝洱汽车空调有限公司 | Torque limiter |
| CN101363483B (en) * | 2007-08-10 | 2012-04-25 | 上海三电贝洱汽车空调有限公司 | Torquemoment delimiter with dustproof protection function |
| CN104863990A (en) * | 2015-05-28 | 2015-08-26 | 无锡创明传动工程有限公司 | Friction type torque limiting structure |
| CN107100946B (en) * | 2017-05-23 | 2019-07-02 | 清华大学 | Intelligent torque control device |
| DE102017124829A1 (en) * | 2017-10-24 | 2019-04-25 | Renk Aktiengesellschaft | The torque transfer device |
| JP2020041666A (en) * | 2018-09-13 | 2020-03-19 | 株式会社オカムラ | Torque limiter |
| CN210646632U (en) * | 2019-09-03 | 2020-06-02 | 重庆市万州区江南机械制造有限公司 | Heavy impact crusher with good dustproof effect |
| CN213332288U (en) * | 2020-08-12 | 2021-06-01 | 丰县翼虎精密模具有限公司 | Can dustproof radiating motor transmission casing |
| CN213064406U (en) * | 2020-09-16 | 2021-04-27 | 昆山信益输送机械有限公司 | Torsion limiter convenient to overhaul |
-
2021
- 2021-07-05 CN CN202110759986.0A patent/CN113457828B/en active Active
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| CN113457828A (en) | 2021-10-01 |
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