CN202381567U - Rolling ball type torque limiter for electric push rod - Google Patents
Rolling ball type torque limiter for electric push rod Download PDFInfo
- Publication number
- CN202381567U CN202381567U CN2011204762449U CN201120476244U CN202381567U CN 202381567 U CN202381567 U CN 202381567U CN 2011204762449 U CN2011204762449 U CN 2011204762449U CN 201120476244 U CN201120476244 U CN 201120476244U CN 202381567 U CN202381567 U CN 202381567U
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- CN
- China
- Prior art keywords
- steel ball
- type torque
- rolling ball
- ball
- pad
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- Expired - Lifetime
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Abstract
The utility model discloses a rolling ball type torque limiter for an electric push rod. The rolling ball type torque limiter comprises a connecting sleeve and a regulating sleeve, which are mutually connected, a rolling ball mechanism is arranged between the connecting sleeve and the regulating sleeve, disc springs are arranged between the rolling ball mechanism and the regulating sleeve, the disc springs are at least two, the back surfaces of the adjacent two disc springs are close to each other for transferring torque, the rolling ball mechanism comprises a steel ball pad, a positioning frame and a steel ball arranged between the steel ball pad and the positioning frame, a first position-limiting hole corresponding to the steel ball is arranged on the steel ball pad, and a second position-limiting hole corresponding to the steel ball is arranged on the positioning frame. The rolling ball type torque limiter disclosed by the utility model can effectively prevent the push rod from causing damages and other situations of parts under overloading situation, better protect the normal working of the push rod and bear greater loading force; and furthermore, the parts are less prone to abrasion, the damage probability of the mechanism is greatly reduced, and the self-restoration linkage effect is simultaneously good. The rolling ball type torque limiter disclosed by the utility model has the advantages of simple structure, simplicity and convenience in manufacturing, low cost and strong practicality.
Description
Technical field
The utility model relates to a kind of electric pushrod and uses the ball type torque force limiting device.
Background technique
Ball type torque force limiting device (also being torque limiter, safety coupling, safety clutch) is a kind of parts that connect mover and working machine machine, and major function is an overload protection.The ball type torque force limiting device is when causing required torque to surpass setting value when overload or mechanical failure, and the torsion that it is transmitted with the form limiting drive train system that skids recovers to connect after the overload situation disappears voluntarily.So just prevent mechanical failure, avoided expensive shutdown loss.The ball type torque force limiting device adopts spring-load formula friction surface, with nut or bolt adjustment spring force, preset its sliding torque.Can be divided into friction type torque limiter and steel ball type torque limiter (also being the ball type torque limiter) by working principle; Application area: electronics industry, automatic line, conveyor industry etc.Common electric push rod bearing capacity is between 4000～8000N, and its torque force limiting device that adopts generally adopts jaw clutch, but along with the electric pushrod application is constantly expanded; Be applied to industrial field, its bearing capacity is brought up to 10000N, and jaw clutch is under the heavy load situation; Its tooth form is easy to wear; After using a period of time, occur losing efficacy the structural failure phenomenon.
The model utility content
The purpose of the utility model is to provide electric pushrod to use the ball type torque force limiting device, can solve existing electric pushrod effectively with ball type torque force limiting device complex structure, and rate of fault height and cause damage parts influences the problem of proper functioning.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
Electric pushrod is used the ball type torque force limiting device, comprises interconnective connecting sleeve and adjustment sleeve, is provided with ball bearing mechanism between connecting sleeve and the adjustment sleeve, it is characterized in that: be provided with belleville spring between ball bearing mechanism and the adjustment sleeve.
Further, belleville spring is provided with two at least, is adjacent to transmission torsion dorsad between adjacent two belleville springs, helps the transmission of torsion.
Further, be provided with second pad between belleville spring and the adjustment sleeve, help the transmission of torsion, guarantee proper functioning.
Further, be provided with first pad between belleville spring and the ball bearing mechanism, help the transmission of torsion, guarantee proper functioning.
Further, ball bearing mechanism comprises steel ball pad, position shelf and is located at the steel ball between steel ball pad and the position shelf, and the steel ball pad is provided with first spacing hole corresponding with steel ball, and position shelf is provided with second spacing hole corresponding with steel ball.
Preferably, steel ball is evenly distributed between position shelf and the steel ball pad, and the torsion transmission is even, realizes smooth working, reduces operating noise.
The utility model is owing to adopted technique scheme; Has following beneficial effect: can prevent effectively that throw-out lever causes the situation such as damage of part under overload situations; Protect the proper functioning of push rod better, can bear, and part is not easy to wear than heavy load power; Mechanism's damage probability reduces significantly, and it recovers to connect effective voluntarily simultaneously.The utility model is simple in structure, manufacturing is easy, cost is low, practical.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the explosive view of the utility model electric pushrod with the ball type torque force limiting device;
Fig. 2 is the structural representation of the utility model electric pushrod with the ball type torque force limiting device;
Fig. 3 be among Fig. 2 A to structural representation;
Fig. 4 be among Fig. 2 B to structural representation;
Fig. 5 is the structural representation of connecting sleeve in the utility model;
Fig. 6 is the sectional view of connecting sleeve;
Fig. 7 is the structural representation of steel ball pad in the utility model;
Fig. 8 is the sectional view of steel ball pad;
Fig. 9 is a C place structure enlarged diagram among Fig. 8;
Figure 10 is the structural representation of position shelf in the utility model;
Figure 11 is the sectional view of position shelf;
Figure 12 is the plan view of position shelf;
Figure 13 is the sectional view of belleville spring in the utility model;
Figure 14 is that D among Figure 13 is to structural representation;
Figure 15 is that E among Figure 13 is to structural representation;
Figure 16 is the structural representation of adjustment sleeve in the utility model;
Figure 17 is the sectional view of adjustment sleeve.
Embodiment
Extremely shown in Figure 17 like Fig. 1; For the utility model electric pushrod is used the ball type torque force limiting device; Comprise interconnective connecting sleeve 1 and adjustment sleeve 8; Be provided with ball bearing mechanism between connecting sleeve 1 and the adjustment sleeve 8, ball bearing mechanism comprise steel ball pad 2, position shelf 4 and be located at steel ball pad 2 and position shelf 4 between steel ball 3, steel ball 3 is evenly distributed between position shelf 4 and the steel ball pad 2; Steel ball pad 2 is provided with first spacing hole 21 corresponding with steel ball 3, and position shelf 4 is provided with second spacing hole 41 corresponding with steel ball 3.Be provided with belleville spring 6 between ball bearing mechanism and the adjustment sleeve 8; Belleville spring 6 both sides are respectively convex surface 61 and concave surface 62; Belleville spring 6 is provided with two at least; Be adjacent to transmission torsion dorsad between adjacent two belleville springs 6, promptly the convex surface 61 of a belleville spring 6 is adjacent to the convex surface 61 of another belleville spring 6 in two belleville springs 6, and perhaps the concave surface 62 of a belleville spring 6 is adjacent to the concave surface 62 of another belleville spring 6 in two belleville springs 6; Be provided with first pad 5 between belleville spring 6 and the ball bearing mechanism, be provided with second pad 7 between belleville spring 6 and the adjustment sleeve 8.
The utility model electric pushrod is applied to the working procedure in the electric pushrod with the ball type torque force limiting device:
Drive end is connecting sleeve one side by the motor back input of slowing down, and to be adjustment sleeve one side connected with position shelf in the torque force limiting device by the first order gear of reduction gear driven end.The original state belleville spring has added pretightening force, in push rod standard load running, torque force limiting device under the belleville spring active force, the power of normal delivery motor output, driven gear, screw mandrel/nut are realized the push rod proper functioning.Under the situation of push rod overload, when the motor output torque transmitted through torque force limiting device, the torsion between position shelf and ball, rotated so cause position shelf to drive ball position shelf institute applied pressure greater than belleville spring, realizes overload protection function.After the overload situation was eliminated, belleville spring restPosed again, realized the proper functioning of push rod.
More than be merely the specific embodiment of the utility model, but the technical characteristics of the utility model is not limited thereto.Any is the basis with the utility model, for realizing essentially identical technique effect, has done the ground simple change, has been equal to replacement or modification etc., all is covered by among the protection domain of the utility model.
Claims (6)
1. electric pushrod is used the ball type torque force limiting device, comprises interconnective connecting sleeve (1) and adjustment sleeve (8), is provided with ball bearing mechanism between said connecting sleeve (1) and the adjustment sleeve (8), it is characterized in that: be provided with belleville spring (6) between ball bearing mechanism and the adjustment sleeve (8).
2. electric pushrod according to claim 1 is used the ball type torque force limiting device, it is characterized in that: said belleville spring (6) is provided with two at least, is adjacent to transmission torsion dorsad between said adjacent two belleville springs (6).
3. electric pushrod according to claim 1 is used the ball type torque force limiting device, it is characterized in that: be provided with second pad (7) between said belleville spring (6) and the adjustment sleeve (8).
4. electric pushrod according to claim 1 is used the ball type torque force limiting device, it is characterized in that: be provided with first pad (5) between said belleville spring (6) and the ball bearing mechanism.
5. use the ball type torque force limiting device according to claim 1 or 4 described electric pushrods; It is characterized in that: said ball bearing mechanism comprise steel ball pad (2), position shelf (4) and be located at said steel ball pad (2) and position shelf (4) between steel ball (3); Said steel ball pad (2) is provided with first spacing hole (21) corresponding with steel ball (3), and said position shelf (4) is provided with second spacing hole (41) corresponding with steel ball (3).
6. electric pushrod according to claim 5 is used the ball type torque force limiting device, it is characterized in that: said steel ball (3) is evenly distributed between position shelf (4) and the steel ball pad (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204762449U CN202381567U (en) | 2011-11-25 | 2011-11-25 | Rolling ball type torque limiter for electric push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204762449U CN202381567U (en) | 2011-11-25 | 2011-11-25 | Rolling ball type torque limiter for electric push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381567U true CN202381567U (en) | 2012-08-15 |
Family
ID=46630072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204762449U Expired - Lifetime CN202381567U (en) | 2011-11-25 | 2011-11-25 | Rolling ball type torque limiter for electric push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281951A (en) * | 2018-10-24 | 2019-01-29 | 浙江巨人机电有限公司 | A kind of torque limit shaft coupling |
-
2011
- 2011-11-25 CN CN2011204762449U patent/CN202381567U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281951A (en) * | 2018-10-24 | 2019-01-29 | 浙江巨人机电有限公司 | A kind of torque limit shaft coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |