CN201293746Y - Drive structure for runner of dragline fatigue tester - Google Patents
Drive structure for runner of dragline fatigue tester Download PDFInfo
- Publication number
- CN201293746Y CN201293746Y CNU2008201866904U CN200820186690U CN201293746Y CN 201293746 Y CN201293746 Y CN 201293746Y CN U2008201866904 U CNU2008201866904 U CN U2008201866904U CN 200820186690 U CN200820186690 U CN 200820186690U CN 201293746 Y CN201293746 Y CN 201293746Y
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- China
- Prior art keywords
- driving
- disc
- runner
- fatigue tester
- pull rope
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- Expired - Fee Related
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Abstract
A pull rope fatigue tester turning wheel driving structure comprises a motor spindle (5), a turning wheel (1) and a driving plate (2), wherein the driving plate (2) is connected with the motor spindle (5) which drives the driving plate (2) to rotate; the turning wheel (1) is movably mounted on the spindle (5) via a bearing. The pull rope fatigue tester turning wheel driving structure is characterized in that the driving plate (2) is arranged in a cavity (6) of the turning wheel (1); the wall of the cavity (6) is provided with a driving groove (7); the driving plate (2) is provided with a mounting hole (8) along radius for mounting a resistance column (3); one end of the resistance column (3) extends outside the mounting hole (8) via the elastic force of a spring (9) to be inserted into the driving groove (70 to drive the turning wheel (1) to rotate along with the driving plate (2). The pull rope fatigue tester turning wheel driving structure has the advantages of simple structure, low cost, high safety and reliability, easy installment and application, and high generality.
Description
Technical field
The utility model relates to a kind of test unit, especially a kind of stay cord fatigue rig, specifically a kind of rotating drive structure of pull rope fatigue tester.
Background technology
At present, along with the raising of people's living standard and quality of life, electric equipment products require not only that quality is good, reasonable price, outward appearance novelty, also must be easy to use, be convenient to deposit.In recent years along with new technology, new technology are used widely in electric equipment products, such as suction cleaner, charger, mouse, electric cooker, electric iron etc. all are provided with stay cord (power lead) automatic recycling device, in the time of maybe wouldn't needing power supply when finishing using, power lead or connecting line can be recovered in the main frame automatically, so not only convenient for users to use, also be convenient to deposit.Pull rope fatigue tester is mainly used in stay cord (power lead) fatigue life test of the electric equipment products that are provided with stay cord (power lead) automatic recycling device.This fatigue tester needed 24 hours incessantly product to be carried out torture test, and unmanned generally speaking guard.Under the situation of this long-term work, as meet accident and easily rope is broken even burn-down of electric motor.In order to prevent the generation of this situation, need in design process, allow the axle between the runner of motor and stay cord connect and to engage automatically and to separate.Stay cord and runner are in bonding state at ordinary times, drive the runner rotation during motor rotation.When being subjected to external resistance, motor breaks away from the line space that is incorporated into of runner to be changeed, and so just can avoid rope to be broken or the generation of burn-down of electric motor phenomenon effectively.
Summary of the invention
The purpose of this utility model is the work characteristics at existing stay cord torture test, designs a kind of continuous working for a long time, can prevent the rotating drive structure of pull rope fatigue tester that rope is broken or motor burns out again.
The technical solution of the utility model is:
A kind of rotating drive structure of pull rope fatigue tester, comprise electric machine main shaft 5, runner 1 and driving-disc 2, driving-disc 2 links to each other with the electric machine main shaft 5 that drives its rotation, runner 1 is movably arranged on the main shaft 5 by bearing, it is characterized in that driving-disc 2 is arranged in the cavity 6 of runner 1, and on the perisporium of described cavity 6, be provided with drive groove 7, radially be provided with the mounting hole 8 that resistance post 3 is installed on driving-disc 2, an end of resistance post 3 stretches out under the elastic force effect of spring 9 in the described drive groove 7 of mounting hole 8 back insertions and drives runner 1 with driving-disc 2 rotations.
The other end of described spring 9 offsets with an end of adjusting post 10, the adjusting range that is cam-like that the other end of adjusting post 10 stretches out on the adjusting rotating disk 4 in driving-disc 2 and the groove 12 that is installed in driving-disc 2 offsets, and regulates rotating disk 4 and is sleeved on the electric machine main shaft 5 and by end face screw 11 and links to each other with the inner bottom surface of the groove 12 of driving-disc 2.
The beneficial effects of the utility model:
The utility model both can be applicable to connecting between motor and runner shaft in the pull rope fatigue tester, also can be applied to realize when diaxon connects separation automatically or the occasion that engages, therefore it has not only solved the job requirement of pull rope fatigue tester, and can be applicable to kindred organization, have the characteristics of applied range.The automatic joint that the utility model can be realized diaxon with separate, when having prevented the motor malfunction effectively, the destruction of stay cord runner and the disconnection of stay cord.
The utility model also has simple in structure, and cost is low, and is safe and reliable, is convenient to install and use the advantage of versatility.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional structure synoptic diagram of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, 2.
A kind of rotating drive structure of pull rope fatigue tester, comprise electric machine main shaft 5, runner 1 and driving-disc 2, as shown in Figure 1, driving-disc 2 links to each other with the electric machine main shaft 5 (available spline structure) that drives its rotation, runner 1 is movably arranged on the main shaft 5 by bearing 13, runner 1 is provided with a cavity 6 that is used to install driving-disc, driving-disc 2 is arranged in the cavity 6 of runner 1, and be used for the force transmission of the main shaft drive groove 7 to the runner 1 being provided with on the perisporium of described cavity 6, on driving-disc 2, radially be provided with the mounting hole 8 that resistance post 3 is installed, this mounting hole 8 should adopt Fig. 1, through-hole structure shown in 2, one end of resistance post 3 stretches out under the elastic force effect of spring 9 in the described drive groove 7 of mounting hole 8 back insertions and drives runner 1 with driving-disc 2 rotations, the other end of resistance post 3 then offsets with an end of spring 9, one end of spring 9 offsets with an end of adjusting post 10, the adjusting range that is cam-like that the other end of adjusting post 10 stretches out on the adjusting rotating disk 4 in driving-disc 2 and the groove 12 that is installed in driving-disc 2 offsets, and regulates rotating disk 4 and is sleeved on the electric machine main shaft 5 and by end face screw 11 and links to each other with the inner bottom surface of the groove 12 of driving-disc 2.
In order to improve the whole drive system traveling comfort, reduce running noise, mounting hole 8 on the driving-disc 2 should be radial distribution on the one hand, its quantity is more than three or three, and circumferentially uniform along driving-disc 2, and the quantity of drive groove 7 should be greater than the quantity of mounting hole 8, so that send chimes of doom when idle running, as shown in Figure 1.
Principle of work of the present utility model is: the utility model is made up of active part (driving-disc 2), secondary part (runner 1), friction force regulating element (resistance post 3) etc.When motor rotation, active part and produces bigger friction force between the resistance post 3 under the tension force effect of spring 9, thus with runner 1 (secondary part) fluid-tight engagement of stay cord, under friction force and extruding force interact, drive runner 1 rotation and carry out work.When being subjected to external drag, when causing proving installation to be in improper duty, if resistance is made a concerted effort greater than friction force and extruding force, the drive groove 7 that resistance post 3 breaks away from the runner 1, thereby active part and secondary part are broken away from, skid each other, motor shaft then dallies and along with the carrying out of rotating, resistance post 3 enters in the adjacent drive groove 7 successively.The bearing capacity that it should be noted that stay cord is greater than the resistance under the abnormal operating state; Therefore it is of crucial importance friction force and extruding force to be adjusted to suitable scope.Specially designed friction force is regulated this mechanism of rotating disk in the utility model, comes friction force and extruding force are adjusted.When motor is in off-position, can rotate rotating disk manually, fix a breakdown.Such mechanism has realized separating automatically of motor and stay cord runner diaxon or has engaged that the fracture of the destruction of stay cord runner and stay cord when preventing the motor malfunction effectively also effectively reduces potential safety hazard.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.
Claims (3)
1, a kind of rotating drive structure of pull rope fatigue tester, comprise electric machine main shaft (5), runner (1) and driving-disc (2), driving-disc (2) links to each other with the electric machine main shaft (5) that drives its rotation, runner (1) is movably arranged on the main shaft (5) by bearing, it is characterized in that driving-disc (2) is arranged in the cavity (6) of runner (1), and on the perisporium of described cavity (6), be provided with drive groove (7), radially be provided with the mounting hole (8) that resistance post (3) is installed on driving-disc (2), an end of resistance post (3) stretches out mounting hole (8) back and inserts that drive runner (1) rotates with driving-disc (2) in the described drive groove (7) under the elastic force effect of spring (9).
2, rotating drive structure of pull rope fatigue tester according to claim 1, the other end that it is characterized in that described spring (9) offsets with an end of adjusting post (10), the adjusting range that is cam-like that the other end of adjusting post (10) stretches out on the adjusting rotating disk (4) in driving-disc (2) and the groove (12) that is installed in driving-disc (2) offsets, and regulates rotating disk (4) and is sleeved on electric machine main shaft (5) and goes up and link to each other with the inner bottom surface of the groove (12) of driving-disc (2) by end face screw (11).
3, rotating drive structure of pull rope fatigue tester according to claim 1 is characterized in that the mounting hole (8) on the described driving-disc (2) is radial distribution, and its quantity is more than three or three, and circumferentially uniform along driving-disc (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201866904U CN201293746Y (en) | 2008-10-30 | 2008-10-30 | Drive structure for runner of dragline fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201866904U CN201293746Y (en) | 2008-10-30 | 2008-10-30 | Drive structure for runner of dragline fatigue tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293746Y true CN201293746Y (en) | 2009-08-19 |
Family
ID=41007229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201866904U Expired - Fee Related CN201293746Y (en) | 2008-10-30 | 2008-10-30 | Drive structure for runner of dragline fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201293746Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807700A (en) * | 2014-08-18 | 2015-07-29 | 海盐国检检测技术有限公司 | Stress corrosion testing machine |
| CN106226057A (en) * | 2016-08-22 | 2016-12-14 | 中国科学院等离子体物理研究所 | A kind of easy reciprocal non-percussion load charger |
-
2008
- 2008-10-30 CN CNU2008201866904U patent/CN201293746Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807700A (en) * | 2014-08-18 | 2015-07-29 | 海盐国检检测技术有限公司 | Stress corrosion testing machine |
| CN106226057A (en) * | 2016-08-22 | 2016-12-14 | 中国科学院等离子体物理研究所 | A kind of easy reciprocal non-percussion load charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20111030 |