CN112815053A - Angle-limiting force value transfer device with protection function - Google Patents
Angle-limiting force value transfer device with protection function Download PDFInfo
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- CN112815053A CN112815053A CN202110162440.7A CN202110162440A CN112815053A CN 112815053 A CN112815053 A CN 112815053A CN 202110162440 A CN202110162440 A CN 202110162440A CN 112815053 A CN112815053 A CN 112815053A
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- China
- Prior art keywords
- belt
- tensioning
- angle
- force value
- pull rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0808—Extension coil springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention relates to an angle-limiting force value transmission device with a protection function, which comprises a protection piece and a tensioning mechanism for tensioning a belt, wherein the tensioning mechanism can be turned over up and down, the upper end of the tensioning mechanism is connected with the lower end of a pull rod in a sliding manner, the protection piece is sleeved on the lower end of the pull rod in a sliding manner, and the two ends of the protection piece are respectively abutted against the upper end of the tensioning mechanism and the lower end of the pull rod and are used for enabling the belt to recover a disconnected state by twisting and breaking when. The belt tensioning device has the beneficial effects that the tensioning adjustment of the belt can be realized, the running state of the belt is ensured, meanwhile, the belt can be prevented from inclining, secondary damage caused by the flying-out of the belt pulley is avoided, and the belt tensioning device is safe and reliable.
Description
Technical Field
The invention relates to the technical field of transmission mechanisms, in particular to an angle limiting force value transmission device with a protection function.
Background
The tension part in the transmission mechanism generally needs a tension pull rod and a cushioning spring. In the process of actual operation, the pitch surface of the transmission belt is inclined due to the problems of deformation of the supporting shaft, falling of the bearing ball and the like in the belt transmission in the transmission structure. The existing transmission belt tensioning mechanism can only be adjusted along the tensioning direction, the adjustment of the tensioning mechanism cannot protect the inclined operation of the belt, if the tensioning surface is inclined, the eccentric wear of the tensioning mechanism is directly caused, and the inclined belt wheel can be driven by the inclined belt wheel to fly out to cause secondary damage in severe cases; moreover, the inclined running of the belt is not easy to be perceived, operators need to smell peculiar smell and hear abnormal sound to overhaul the belt, and the belt at the moment basically fails, even serious accidents can be caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing an angle limiting force value transmission device with a protection function and aims to solve the technical problem.
The technical scheme for solving the technical problems is as follows:
an angle-limiting force value transmission device with a protection function comprises a protection piece and a tensioning mechanism for tensioning a belt, wherein the tensioning mechanism can be turned over up and down, and the upper end of the tensioning mechanism is connected with the lower end of a pull rod in a sliding manner; the protection piece is sleeved on the lower end of the pull rod in a sliding mode, two ends of the protection piece are respectively abutted to the upper end of the tensioning mechanism and the lower end of the pull rod, and the protection piece is used for enabling the belt to be in a disconnected state after the belt is twisted and broken when the belt inclines.
The invention has the beneficial effects that: when the belt tensioning device is used, the pull rod is manually pushed and pulled to drive the tensioning mechanism to adjust the tension degree of the belt; when the tensioning surface of the belt inclines, the tensioning mechanism is driven to incline, the axial line of the pull rod deviates from the axial direction of the protection piece, the pull rod extrudes the inner wall of the protection piece to enable the protection piece to be twisted and broken, and the pull rod returns to the original position at the moment, so that the belt returns to the disconnected state and the belt is protected. The belt tensioning device can realize tensioning adjustment of the belt, ensure the running state of the belt, prevent the belt from inclining, avoid secondary damage caused by flying out of the belt pulley, and is safe and reliable.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the protection piece is a protection cylinder with two open ends, and the protection cylinder is coaxially sleeved on the lower end of the pull rod in a sliding manner.
The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design, the lower extreme sliding fit of a protection section of thick bamboo and pull rod, when the tensioning face of belt took place to incline, a protection section of thick bamboo can take place to break to make the belt resume the parallel state of tensioning face, the protection belt.
Furthermore, at least one end of the protection cylinder is provided with at least one pre-split.
The beneficial effects of adopting above-mentioned further scheme are simple structure, reasonable in design for easily breaking when the protection section of thick bamboo takes place to twist reverse, thereby better protection belt.
Further, be equipped with respectively on the both ends of a protection section of thick bamboo in advance the breach, two in advance the breach sets up relatively.
Adopt the beneficial effect of above-mentioned further scheme to make a protection section of thick bamboo more easily break, protection belt that can be better.
Further, the protection member is made of a ceramic material.
The beneficial effect of adopting above-mentioned further scheme is that pottery has compressive strength big, and tensile, bending resistance, the less characteristics of impact strength, easily breaks when taking place to twist reverse to protect the belt, and the cost is lower.
Furthermore, the lower end of the pull rod is in threaded connection with a limiting nut, and one end of the protection piece is abutted to the limiting nut.
The beneficial effects of adopting above-mentioned further scheme are simple structure, make things convenient for dismouting protection piece, labour saving and time saving.
Furthermore, the tensioning mechanism comprises a tensioning frame capable of being turned over up and down, the upper end of the tensioning frame is connected with the lower end of the pull rod in a sliding mode, the belt penetrates through the tensioning frame, and two sides of the belt are respectively close to two sides of the tensioning frame; a tensioning wheel is rotatably arranged at the part, below the belt, in the tensioning frame, and the tensioning wheel is attached to the lower side of the belt; and turning over the tensioning frame up and down and driving the tensioning wheel to be attached to or separated from the belt so as to tension the belt.
The beneficial effects of adopting above-mentioned further scheme are that when using, artifical manual push-and-pull rod drives tensioning frame and overturns from top to bottom for take-up pulley and belt laminating or separation, with the tensioning belt, thereby adjust the rate of tension of belt, easy and simple to handle.
Further, the tensioning frame is a bent frame body, and the tensioning wheel is located at the bent position of the tensioning frame.
The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design both can the tensioning belt, can save space again.
Further, it is right still to include the belt carries out spacing gag lever post, the one end of gag lever post extends to one side of belt upside, and presses close to the belt.
The beneficial effect of adopting the further proposal is that when the belt runs, the limiting rod plays a role of preventing the belt from being separated from the belt groove; when the tensioning mechanism is loosened, the belt can be separated from the belt wheel as fast as possible through the limiting of the limiting rod, and the linkage phenomenon of the driven wheel is prevented.
Furthermore, the upper end of the pull rod is connected with the control handle through a tension spring.
The beneficial effect who adopts above-mentioned further scheme is that both can realize being connected between operating handle and the straining device through the extension spring, can also play effectual bradyseism effect simultaneously.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a structural diagram illustrating a state in which the present invention is applied;
FIG. 4 is a schematic structural view of a second state in which the present invention is applied;
FIG. 5 is a schematic structural view of a first embodiment of a protector according to the present invention;
FIG. 6 is a schematic structural view of a second embodiment of a protector according to the present invention;
FIG. 7 is a view showing the state of the protector under force according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a protection piece, 2, a belt, 3, a pull rod, 4, an operating handle, 5, a pre-splitting opening, 6, a limiting nut, 7, a tensioning frame, 8, a tensioning wheel, 9, a limiting rod, 10, a tension spring, 11 and a tensioning seat.
Detailed Description
The principles and features of this invention are described in connection with the drawings and the detailed description of the invention, which are set forth below as examples to illustrate the invention and not to limit the scope of the invention.
As shown in fig. 1 to 7, the invention provides an angle-limiting force value transmission device with a protection function, which comprises a protection member 1 and a tensioning mechanism for tensioning a belt 2, wherein the tensioning mechanism can be turned over up and down, and the upper end of the tensioning mechanism is connected with the lower end of a pull rod 3 in a sliding manner; the protecting piece 1 is sleeved on the lower end of the pull rod 3 in a sliding mode, two ends of the protecting piece are respectively abutted to the upper end of the tensioning mechanism and the lower end of the pull rod 3, and the protecting piece is used for enabling the belt 2 to recover a disconnected state due to torsion fracture when the belt 2 inclines. When the belt tensioning device is used, the pull rod 3 is manually pushed and pulled to drive the tensioning mechanism to adjust the tension degree of the belt 2; when the tensioning surface of the belt 2 inclines, the tensioning mechanism is driven to incline, the axial line of the pull rod 3 deviates from the axial direction of the protection piece 1, the pull rod 3 extrudes the inner wall of the protection piece 1 to enable the protection piece 1 to be twisted and broken, and the pull rod 3 is restored to the original position at the moment, so that the belt 2 is restored to the disconnected state to protect the belt 2. The belt tensioning device can realize tensioning adjustment of the belt 2, ensure the running state of the belt 2, prevent the belt 2 from inclining, avoid secondary damage caused by flying out of the belt pulley, and is safe and reliable.
The above-described off state corresponds to: the upper tensioning mechanism is still locked but the lower belt 2 has slackened and the lever tensioning mechanism is not tensioned.
Example 1
On the basis of above-mentioned structure, in this embodiment, protection piece 1 is the equal open protection barrel in both ends, and the coaxial sliding sleeve of protection barrel is located on the lower extreme of pull rod 3, simple structure, reasonable in design, and the lower extreme sliding fit of protection barrel and pull rod 3, when the tensioning face of belt 1 takes place to incline, the protection barrel can take place to break to release straining device, thereby make belt 1 resume the parallel state of tensioning face, protection belt 2.
Example 2
On the basis of the first embodiment, in the first embodiment, at least one end of the protection cylinder is provided with at least one pre-split 5, so that the protection cylinder is simple in structure and reasonable in design, and is easy to break when twisted, and the belt 2 is better protected.
Example 3
On the basis of the second embodiment, preferably, in this embodiment, the two ends of the protection cylinder are respectively provided with the pre-split 5, and the two pre-splits 5 are oppositely arranged, so that the protection cylinder is easier to break, and the belt 2 can be better protected.
Besides the above embodiments, one or more pre-split openings 5 may be provided at any end of the protection cylinder, for example, only one pre-split opening 5 is provided at any end of the protection cylinder, or two or even more pre-split openings 5 may be provided at any end of the protection cylinder, and when the number of pre-split openings 5 is two, the pre-split openings are preferably arranged oppositely, so as to facilitate the protection cylinder to be quickly broken; meanwhile, a plurality of pre-splitting openings 5 can be arranged at two ends of the protection barrel, the number of the pre-splitting openings 5 at the two ends of the protection barrel can be the same or different, and preferably, the pre-splitting openings are arranged in pairs in an opposite mode when the pre-splitting openings are the same, so that the protection barrel is more beneficial to breaking.
Example 4
On the basis of the above structure, in the present embodiment, the protector 1 is made of a ceramic material. The ceramic has the characteristics of high compressive strength and low tensile, bending and impact strength, is easy to break when twisted so as to protect the belt 2, and has low cost.
According to the scheme, by utilizing the anisotropic characteristic (the compression and torsion resistant characteristic) of the ceramic, the rotating surface of the belt 2 is within a certain inclination angle range, so that normal tensioning can be ensured, and when the transmission surface of the belt 2 is greatly inclined, the ceramic can be cracked, and the tensioning mechanism can be loosened; the ceramic resists compression and torsion, and the thickness of the ceramic and the shape of the pre-split 5 can act to define the torsion angle. .
The protection member 1 uses ceramic as a raw material, and utilizes the characteristics of the ceramic material to define the angle of force value transmission, the initial angle is within the cone range marked by the middle solid line, and the protection range of the force value can be expanded within the cone range marked by the dotted line by reducing the pre-splitting 5 and even eliminating the pre-splitting 5 at the position (see fig. 7).
Example 5
On the basis of above-mentioned structure, in this embodiment, the lower extreme of pull rod 3 is equipped with the screw thread section, and threaded connection has stop nut 6 on this screw thread section, and the one end and the 6 butts of stop nut of protection piece 1, simple structure makes things convenient for dismouting protection piece 1, labour saving and time saving.
Example 6
On the basis of the structure, in the embodiment, the tensioning mechanism comprises a tensioning frame 7 capable of being turned up and down, the lower end of the tensioning frame 7 is rotatably connected with a tensioning seat 11 on the vehicle chassis through a rotating shaft, and the tensioning seat 11 is fixedly installed on the vehicle chassis through bolts; the upper end of the tensioning frame 7 is connected with the lower end of the pull rod 3 in a sliding manner, the belt 2 penetrates through the tensioning frame 7, and the two sides of the belt are respectively close to the two sides of the tensioning frame 7; a tension pulley 8 is rotatably arranged at a part, which is positioned below the belt 2, in the tension frame 7, the tension pulley 8 is rotatably connected with the tension frame 7 through a rotating shaft and is attached to the lower side of the belt 2; the tensioning frame 7 is turned over up and down and drives the tensioning wheel 8 to be attached to or separated from the belt 2 so as to tension the belt 2. During the use, artifical manual push-and-pull rod 3 drives tensioning frame 7 and overturns from top to bottom for take-up pulley 8 and belt 2 laminating or separation, with tensioning belt 2, thereby adjust the rate of tension of belt 2, it is easy and simple to handle.
The upper end of the tension frame 7 is provided with a through hole which penetrates through the inside and the outside, the lower end of the pull rod 3 penetrates through the through hole and extends into the tension frame 7, and the protection piece 1 is positioned on the part of the pull rod 3 positioned in the tension frame 7.
Example 7
On the basis of the sixth embodiment, in the present embodiment, the tensioning frame 7 is a bent frame body, and the tensioning wheel 8 is located at the bent position of the tensioning frame 7, so that the structure is simple, the design is reasonable, the belt 2 can be tensioned, and the space can be saved.
Example 8
On the basis of sixth embodiment, this embodiment still includes the gag lever post 9 that carries out spacing to belt 2, and the one end of gag lever post 9 extends to the one side of belt 2 upside to close to belt 2. When the belt 2 runs, the limiting rod 9 plays a role in preventing the belt 2 from being separated from the belt groove; when the tensioning mechanism is loosened, the belt 2 can be separated from the belt wheel as fast as possible through the limiting of the limiting rod 9, and the linkage phenomenon of the driven wheel is prevented.
The above-mentioned driven wheel
Preferably, the limiting rod 9 is parallel to the belt 2, so as to better limit the belt 2; the stopper rod 9 is fixed to the vehicle chassis by a bolt.
Example 9
On the basis of the sixth embodiment, in the present embodiment, the pull rod 3 is connected to the operating handle 4 through the tension spring 10, two ends of the tension spring 10 are respectively fastened to the operating handle 4 and the upper end of the pull rod 3, and the upper end of the pull rod 3 and the corresponding portion of the operating handle 4 are respectively provided with a circular hole matched with two ends of the tension spring 10. When the shock absorber is used, the tension spring 10 can be used for realizing the connection between the control handle 4 and the tensioning mechanism, and meanwhile, the shock absorber can play an effective shock absorption role.
The working principle of the invention is as follows:
when the belt tightening device is used, the operating handle 4 is manually operated, and the tension frame 7 is driven to turn over up and down through the tension spring 10 and the pull rod 3, so that the tension wheel 8 is attached to the belt 2 to adjust the tension degree of the belt 2; when the tensioning surface of the belt 2 is inclined, the tensioning mechanism is driven to incline, so that the protection piece 1 is twisted and broken to release the tensioning mechanism, and the belt 2 is restored to the parallel state to protect the belt 2.
At present, no protection device of this type exists in the market, the belt 2 is a transmission tool, and compared with an input and output structure of the belt 2, the belt 2 is a protection device; however, for the combined belt, the combined belt is too strong, so that a special protection device is needed, and the working condition of the combined belt can be deduced to the application working condition of all the belts 2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110162440.7A CN112815053A (en) | 2021-02-05 | 2021-02-05 | Angle-limiting force value transfer device with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110162440.7A CN112815053A (en) | 2021-02-05 | 2021-02-05 | Angle-limiting force value transfer device with protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112815053A true CN112815053A (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110162440.7A Pending CN112815053A (en) | 2021-02-05 | 2021-02-05 | Angle-limiting force value transfer device with protection function |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980060279A (en) * | 1996-12-31 | 1998-10-07 | 박병재 | Tension control structure of driving compressor pulley |
| CN1633567A (en) * | 2002-02-14 | 2005-06-29 | 戴科产品有限责任公司 | Belt tensioner with pivot bushing |
| CN1962218A (en) * | 2006-12-05 | 2007-05-16 | 上海人造板机器厂有限公司 | Belt tension and tuningout device and usage method |
| CN101147012A (en) * | 2005-03-21 | 2008-03-19 | 利滕斯汽车合伙公司 | Belt tensioner with wear compensation |
| WO2008077709A1 (en) * | 2006-12-21 | 2008-07-03 | Schaeffler Kg | Double eccentric tensioning apparatus |
| CN101680515A (en) * | 2007-05-01 | 2010-03-24 | 利滕斯汽车合伙公司 | Wear compensated tensioner |
| DE202010014188U1 (en) * | 2010-10-13 | 2010-12-09 | Bystronic Laser Ag | Clamping device for traction mechanism drives, in particular reversing chain or belt drives |
| CN214465886U (en) * | 2021-02-05 | 2021-10-22 | 潍柴雷沃重工股份有限公司 | Angle-limiting force value transfer device with protection function |
-
2021
- 2021-02-05 CN CN202110162440.7A patent/CN112815053A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980060279A (en) * | 1996-12-31 | 1998-10-07 | 박병재 | Tension control structure of driving compressor pulley |
| CN1633567A (en) * | 2002-02-14 | 2005-06-29 | 戴科产品有限责任公司 | Belt tensioner with pivot bushing |
| CN101147012A (en) * | 2005-03-21 | 2008-03-19 | 利滕斯汽车合伙公司 | Belt tensioner with wear compensation |
| CN1962218A (en) * | 2006-12-05 | 2007-05-16 | 上海人造板机器厂有限公司 | Belt tension and tuningout device and usage method |
| WO2008077709A1 (en) * | 2006-12-21 | 2008-07-03 | Schaeffler Kg | Double eccentric tensioning apparatus |
| CN101680515A (en) * | 2007-05-01 | 2010-03-24 | 利滕斯汽车合伙公司 | Wear compensated tensioner |
| DE202010014188U1 (en) * | 2010-10-13 | 2010-12-09 | Bystronic Laser Ag | Clamping device for traction mechanism drives, in particular reversing chain or belt drives |
| CN214465886U (en) * | 2021-02-05 | 2021-10-22 | 潍柴雷沃重工股份有限公司 | Angle-limiting force value transfer device with protection function |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Applicant after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Applicant before: Weichai leiwo Heavy Industry Co.,Ltd. |
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