CN202659757U - Torque limiter for transmission shaft - Google Patents
Torque limiter for transmission shaft Download PDFInfo
- Publication number
- CN202659757U CN202659757U CN 201220368266 CN201220368266U CN202659757U CN 202659757 U CN202659757 U CN 202659757U CN 201220368266 CN201220368266 CN 201220368266 CN 201220368266 U CN201220368266 U CN 201220368266U CN 202659757 U CN202659757 U CN 202659757U
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- China
- Prior art keywords
- sleeve
- transmission shaft
- torque
- elastomer
- ball bearing
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- Expired - Fee Related
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Abstract
The utility model discloses a torque limiter for a transmission shaft. The limiter comprises an outer tapered sleeve, an inner tapered sleeve, a pushing ball bearing, a sleeve barrel, an elastic body and a pressing cover, wherein the outer tapered sleeve and the inner tapered sleeve are matched in a certain taper, the elastic body is arranged between the sleeve barrel and the pressing cover, and the outer tapered sleeve, the sleeve barrel, the elastic body and the pressing cover are connected through bolts. The axial force exerted by bolts is adjusted, then the slipping torque of the limiter is adjusted, the abrasion deformation of a friction surface is compensated through the elastic body, the friction surface is in a tapered surface structure, and the large sliding torque can be achieved under the condition that the tactical diameter is small.
Description
Technical field
The utility model belongs to the general machinery equipment technical field, especially relates to a kind of transmission shaft torque limiter, is mainly used in overload protection in all kinds of machine work processes and the multiaxis collective moment of torsion when driving balanced.
Background technique
Generally there is impulsive load in the course of the work in running machinery, and General Design Process often can't accurately be estimated the impulsive load size of actual working state, so the breaking axis of gearing is of common occurrence in actual production.Torque limiter has driving torque and the function that main driven shaft skids relatively namely occurs above specified value, can effectively limit the actual torque size in the transmission shaft system, is to prevent one of effective measures that breaking axis occurs.Multiaxis collective driving device such as roller leveler, in the course of the work, because the operating conditions of each axle is different, each axle torque distribution uneven phenomenon easily occurs, even also negative torque can occur on the respective shaft.Moment of torsion is uneven, and especially negative torque phenomenon not only can cause the unstable of equipment operation, and be the main reason of high capacity axle off-axis, is the bottleneck place that restriction machine whole capability improves.When torque limiter is used in this class collective driving device; when increasing to setting value, high capacity axle moment of torsion skids occurring; thereby force load to be shifted to low torque axis, at this moment torque limiter not only has the effect of the high torque axis of protection, and also has the effect of balanced torsion.Existing torque limiter, can be divided into two classes according to working principle: the one, friction type torque limiter, each rubbing surface is with axially vertical, directly adjust the size of rubbing surface positive pressure by elastic device, reach the effect of default breakaway torque, when this torque limiter skidded, it is constant that moment of torsion maintains certain level; The 2nd, steel ball-pit type torque limiter, when the equipment carry-over moment surpassed the slipping torque (overload) of setting, steel ball left pit, realized relatively rotating between principal and subordinate's dynamic component, when this torque limiter relatively rotated at principal and subordinate's dynamic component, the moment that can transmit can sharply descend.Above two class torque limiters all exist the rated torque with respect to transmission shaft, the characteristics that the swing diameter of required limiter is bigger than normal.
Summary of the invention
The purpose of this utility model is: provide a kind of and have than the transmission shaft torque limiter that can realize larger breakaway torque under the small turning diameter condition.
The technical solution of the utility model is: comprise external conical sleeve, inner conical drogue, thrust ball bearing, sleeve, elastomer, gland, external conical sleeve and inner conical drogue are with certain taper fit, interior external conical sleeve cone-shaped becomes rubbing surface, thrust ball bearing cooperates with the end face of inner conical drogue, thrust ball bearing external diameter and external conical sleeve inwall Spielpassung, sleeve, elastomer, gland are arranged on an end of external conical sleeve, sleeve one end face cooperates with thrust ball bearing, between sleeve and the gland elastomer is housed, external conical sleeve, sleeve, elastomer, gland are bolted at one.
Described rubbing surface is the small angle conical surface, and the material of the material of rubbing surface and tapered sleeve body can be inconsistent.
The beneficial effects of the utility model are: because the utility model comprises external conical sleeve, inner conical drogue, thrust ball bearing, sleeve, elastomer, gland, external conical sleeve and inner conical drogue are with certain taper fit, when tighting a bolt, transmission by gland, elastomer, sleeve, thrust ball bearing, can produce certain responsive to axial force on the inner conical drogue end face, thereby between the interior external conical sleeve conical surface, produce (with respect to the axial force) positive pressure of amplifying.In the working procedure, when the moment of torsion that transmits during greater than setting value, between the interior external conical sleeve conical surface relative sliding will appear, at this moment moment of torsion will keep substantially constant, after overload disappears, the relative sliding between the interior external conical sleeve conical surface will disappear automatically, and transmission shaft recovers normal transmission.Its characteristics have: 1, the small angle conical surface has the effect of amplifying axial force, and total has the feature that can realize larger breakaway torque under the less swing diameter condition; 2, when overload, the interior external conical sleeve conical surface is sliding friction, so frictionally still can transmit certain moment of torsion, and moment of torsion can maintain certain level until recover normal transmission when namely transshipping; 3, elastomeric distortion can compensate the wearing and tearing of limiter rubbing surface, makes breakaway torque occur at rubbing surface still substantially remaining unchanged under the condition of allowable wear amount.
Description of drawings
Fig. 1 is structure sectional view of the present utility model;
Fig. 2 is shape assumption diagram of the present utility model.
Embodiment
Can find out from the shape assumption diagram of structure sectional view of the present utility model shown in Figure 1 and Fig. 2, the utility model comprises external conical sleeve 1, inner conical drogue 2, thrust ball bearing 3, sleeve 4, elastomer 5, gland 6, spring washer 7, bolt 8, external conical sleeve 1 connects with driven shaft, and inner conical drogue 2 is connected with driving shaft.External conical sleeve 1 and inner conical drogue 2 form rubbing surface with certain taper fit between external conical sleeve 1 conical surface and inner conical drogue 2 conical surfaces.Thrust ball bearing 3 cooperates with the end face of inner conical drogue 2, and thrust ball bearing 3 transmits axial force, its external diameter and external conical sleeve 1 inwall Spielpassung.Elastomer 5 adopts involutory mode to make up, sleeve 4, elastomer 5, gland 6 are arranged on an end of external conical sleeve 1, sleeve 4 one end faces cooperate with thrust ball bearing 3, between sleeve 4 and the gland 6 elastomer 5 is housed, external conical sleeve 1, sleeve 4, elastomer 5, gland 6 are connected to one by bolt 8, tighting a bolt 8 applies certain axial force, and the size of the axial force that applies by adjusting bolt 8 is regulated the breakaway torque of limiter.The axial wearing and tearing of limiter mainly compensate by elastomeric distortion, can choosing by the suitable elastomeric elasticity coefficient, guarantee the nose balance performance, elastomer 5 can adopt the dish spring, can compensate the wearing and tearing of limiter rubbing surface by the distortion of dish spring, make breakaway torque occur at rubbing surface still substantially remaining unchanged under the condition of allowable wear amount.
In the working procedure, when the moment of torsion that transmits during greater than setting value, between the interior external conical sleeve conical surface relative sliding will appear, at this moment moment of torsion will keep substantially constant, after overload disappears, the relative sliding between the interior external conical sleeve conical surface will disappear automatically, and transmission shaft recovers normal transmission.The rubbing surface of the interior external conical sleeve conical surface adopts the small angle conical surface, can obtain large positive pressure under less axial force condition, and therefore, it is little that total has a swing diameter, the feature that breakaway torque is large.Be the intensity that guarantees interior external conical sleeve structure and the frictional behaviour of rubbing surface, the material of the material of rubbing surface and tapered sleeve body can be inconsistent.
Claims (3)
1. transmission shaft torque limiter, it is characterized in that: comprise external conical sleeve (1), inner conical drogue (2), thrust ball bearing (3), sleeve (4), elastomer (5), gland (6), described external conical sleeve (1) and inner conical drogue (2) are with certain taper fit, interior external conical sleeve cone-shaped becomes rubbing surface, thrust ball bearing (3) cooperates with the end face of inner conical drogue (2), thrust ball bearing (3) external diameter and external conical sleeve (1) inwall Spielpassung, sleeve (4), elastomer (5), gland (6) is arranged on an end of external conical sleeve (1), sleeve (4) one end faces cooperate with thrust ball bearing (3), between sleeve (4) and the gland (6) elastomer (5) is housed, described external conical sleeve (1), sleeve (4), elastomer (5), gland (6) is connected to one by bolt (8).
2. transmission shaft torque limiter according to claim 1, it is characterized in that: described rubbing surface is the small angle conical surface.
3. transmission shaft torque limiter according to claim 1 and 2, it is characterized in that: the material of the material of described rubbing surface and tapered sleeve body is inconsistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220368266 CN202659757U (en) | 2012-07-28 | 2012-07-28 | Torque limiter for transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220368266 CN202659757U (en) | 2012-07-28 | 2012-07-28 | Torque limiter for transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659757U true CN202659757U (en) | 2013-01-09 |
Family
ID=47454666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220368266 Expired - Fee Related CN202659757U (en) | 2012-07-28 | 2012-07-28 | Torque limiter for transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659757U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777505A (en) * | 2012-07-28 | 2012-11-14 | 山东宏康机械制造有限公司 | Torque limiter for transmission shaft |
| CN106704409A (en) * | 2017-03-03 | 2017-05-24 | 中国科学院光电技术研究所 | Single-input transmission device with clutch function |
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
-
2012
- 2012-07-28 CN CN 201220368266 patent/CN202659757U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777505A (en) * | 2012-07-28 | 2012-11-14 | 山东宏康机械制造有限公司 | Torque limiter for transmission shaft |
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
| CN106704409A (en) * | 2017-03-03 | 2017-05-24 | 中国科学院光电技术研究所 | Single-input transmission device with clutch function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170329 Granted publication date: 20130109 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170929 Granted publication date: 20130109 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170929 Granted publication date: 20130109 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200929 Granted publication date: 20130109 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20200728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |