CN212225903U - Indirect control device for measuring tension of synchronous belt difficultly - Google Patents
Indirect control device for measuring tension of synchronous belt difficultly Download PDFInfo
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- CN212225903U CN212225903U CN201922243598.8U CN201922243598U CN212225903U CN 212225903 U CN212225903 U CN 212225903U CN 201922243598 U CN201922243598 U CN 201922243598U CN 212225903 U CN212225903 U CN 212225903U
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Abstract
The utility model discloses an indirect control device for measuring tension of a synchronous belt difficultly, which is used for adjusting the tension of the synchronous belt in an actual working condition, the position structures of a motor, a driving pulley, the synchronous belt and a driven pulley in a working condition simulation unit are the same as the position structures of the motor I, the driving pulley I, the synchronous belt I and the driven pulley I in the actual working condition, and the tension applied to the motor in the working condition simulation unit is the same as the tension applied to the motor I in the actual working condition in direction and action point; the tension control unit is connected with the working condition simulation unit, and the tension of the synchronous belt is adjusted through tension applied to the motor. The utility model provides a pair of indirect control device of difficult survey hold-in range tensile force has solved the hold-in range tensile force control problem under the unable tensile force condition that detects, can adjust the tensile force to suitable value easily, improves hold-in range transmission's stationarity and the life of hold-in range.
Description
Technical Field
The utility model relates to a mechanical transmission field, concretely relates to indirect control device of non-easy survey hold-in range tensile force.
Background
In the technical field of mechanical transmission, belt transmission has the characteristics of simple structure, low requirement on assembly precision, no need of lubrication, wide linear speed range, capability of buffering and absorbing vibration, low noise and the like, and is widely applied to transmission of large shaft spacing, multi-shaft motion and power. According to different transmission principles, the transmission is divided into friction belt transmission by the friction force between the belt and the belt wheel and synchronous belt transmission by the mutual meshing transmission of the belt and the teeth on the belt wheel.
Compared with friction type belt drive, the synchronous belt drive has the biggest characteristic that the belt and the belt wheel do not slide relatively, has the advantages of accurate transmission ratio, high transmission efficiency, no need of large tension force and the like, and is widely applied to precision drive. However, the synchronous belt drive needs to be tensioned during assembly, and is generally realized by adjusting the shaft spacing of synchronous pulleys or arranging a tensioning wheel. For shorter shaft spacing synchronous belt drives, tensioning the synchronous belt by adjusting the shaft spacing is almost the only option.
The tension force not only affects the stability of the synchronous belt transmission, but also affects the service life of the synchronous belt, so that the control of the tension force has important significance in the synchronous belt transmission. Because the slight change of the shaft spacing of the synchronous belt in the tensioning process of the synchronous belt can cause great change of the tensioning force, the shaft spacing is easily interfered by other factors in engineering from the tensioning force and is not feasible. The common method adopted in engineering is to measure the tension of the synchronous belt while finely adjusting the distance between shafts.
The tension of the timing belt is typically measured by a mechanical or acoustic probe. In some cases where the structure is compact, the measuring probe cannot be inserted into a proper position, and therefore, the tension of the timing belt cannot be measured. For such situations, it is necessary to design an indirect control device which is not easy to measure the tension of the synchronous belt.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an indirect control device of difficult survey hold-in range tensile force has solved the hold-in range tensile force control problem under the unable tensile force condition that detects, can adjust the tensile force to suitable value easily, improves hold-in range transmission's stationarity and the life of hold-in range.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an indirect control device for non-easy measurement of the tension of a synchronous belt is used for adjusting the tension of the synchronous belt in an actual working condition, wherein the actual working condition comprises a motor I, a driving pulley I, the synchronous belt I and a driven pulley I, an output shaft of the motor I is connected with the driving pulley I, the synchronous belt I is connected with the driving pulley I and the driven pulley I, the wheel spacing between the driving pulley I and the driven pulley I is adjusted through the tension applied to the motor I or the driving pulley I or the driven pulley I, and the tension of the synchronous belt I is adjusted; the tension tester comprises a working condition simulation unit, a tension control unit and a tension meter;
the working condition simulation unit comprises a motor, a driving belt wheel, a synchronous belt and a driven belt wheel, the position structures of the motor, the driving belt wheel, the synchronous belt and the driven belt wheel in the working condition simulation unit are the same as the position structures of the motor I, the driving belt wheel I, the synchronous belt I and the driven belt wheel I in an actual working condition, and the direction and the acting point of the pulling force exerted on the motor in the working condition simulation unit are the same as those of the pulling force exerted on the motor I in the actual working condition; the synchronous belt in the working condition simulation unit is exposed, so that the tension of the synchronous belt can be conveniently detected by the tension meter; the tension control unit is connected with the working condition simulation unit, and the tension of the synchronous belt is adjusted through tension applied to the motor;
the tension control unit controls tension applied to the motor, and a tension meter is adopted to test the tension of the synchronous belt under the tension; after N groups of tension and tension data are obtained, fitting an expression between the tension and the tension of the synchronous belt, and determining a target tension corresponding to the target tension of the synchronous belt according to the expression, wherein the target tension is the tension applied to the motor I; n is an integer greater than 1.
Further, operating condition still includes speed reducer I, operating condition simulation unit still includes the speed reducer, the input shaft of speed reducer I is connected driven pulley I, the input shaft of speed reducer is connected driven pulley, just the position structure of speed reducer is the same with the position structure of speed reducer I in the operating condition simulation unit.
Further, the working condition simulation unit further comprises a bottom plate, a support and a transition flange, the support is vertically fixed on the bottom plate, and the motor is fixed on the support through the transition flange.
Furthermore, the transition flange is provided with a tightening screw, and whether the motor is fixed on the bracket or not is controlled by tightening or loosening the tightening screw.
Furthermore, the tension control unit comprises a back plate, an L-shaped plate, a guide rail, a sliding block, a tensioning screw, a tension meter and a pull belt, wherein the back plate is vertically arranged, the L-shaped plate and the guide rail are fixed on the back plate, and the guide rail is positioned below the L-shaped plate; the sliding block is positioned on the guide rail and can move up and down along the guide rail, the tension screw is connected with the L-shaped plate and the sliding block, the tension meter is fixed on the sliding block, and the lower part of the tension meter is connected with the motor through a pull belt; the tension applied to the motor is adjusted by adjusting the tightness of the tension screw, which is read by the tension meter.
Further, the lower end of the back plate is connected with the upper end of the support.
Furthermore, the draw tape is located on the motor and is less than or equal to 2cm away from the transition flange.
Further, the driven pulley is located below the driving pulley.
The utility model has the advantages that: the problem of hold-in range tensioning force control under the unable tensile force condition that detects is solved, can adjust the tensile force to suitable value easily, improve hold-in range transmission's stationarity and hold-in range's life. So can adjust the tensile force to suitable value easily, just the utility model discloses the indirect control device who has utilized simulation operating condition surveys out the relation between motor or the pulling force that driving pulley or driven pulley received and the hold-in range tensile force to the tensile force of stretching strap comes the indirect control hold-in range through the pulling force of control operating condition lower stretching strap tensile force. The utility model discloses the reliability is high, and can promote the nature by force, implements simply, possesses higher practical value.
Drawings
FIG. 1 is a schematic view of the configuration of an indirect control apparatus in embodiment 1;
FIG. 2 is a schematic structural diagram of a working condition simulation unit in embodiment 1;
fig. 3 is a schematic structural view of a tension control unit in embodiment 1.
The tension measuring device comprises a base plate 1, a support 2, a motor 2, a transition flange 4, a driving belt wheel 5, a synchronous belt 6, a driven belt wheel 7, a speed reducer 8, a back plate 9, a template 10L, a guide rail 11, a sliding block 12, a tensioning screw 13, a tension meter 14, a tension belt 15 and a tension meter 16.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings.
In the prior art, a synchronous belt between a driving pulley and a driven pulley is usually in a sealing state, and the tension of the synchronous belt cannot be directly measured. The utility model discloses a core thought lies in converting the hold-in range tensile force of difficult survey into indirect measurement's controlling means, and this controlling means's structure is the same completely with structure in the operating condition, and only the hold-in range exposes in the environment, can its tensile force of direct measurement. The utility model discloses well identical indicates with the relevant driving pulley of hold-in range tensile force, driven pulleys, motor, speed reducer and all the same to the adjustment mode of hold-in range tensile force, the utility model discloses only adopted an indirect control device for simulation operating condition running state, and correspond the adjustment mode of hold-in range tensile force and the concrete size of hold-in range tensile force.
The adjustment method of hold-in range tensile force among the prior art is generally for adjusting the distance between driving pulley and the driven pulley, because hold-in range tensile force accommodation process, this wheel interval changes and small, is difficult to the measurand come out, consequently, the utility model discloses an adjustment to motor position or driving pulley position or driven pulley position drives the change of driving pulley and driven pulley relative position to adjustment hold-in range tensile force, promptly the utility model discloses a through the pulling force of adjustment to motor or driving pulley or driven pulley, adjust the distance between driving pulley and the driven pulley, and then adjustment hold-in range tensile force.
The utility model provides a non-easy tensile indirect control device of survey hold-in range for adjust the tensile force of hold-in range in the operating condition, wherein, operating condition includes motor I, driving pulley I, hold-in range I and driven pulley I, the output shaft of motor I driving pulley I, hold-in range I connect driving pulley I and driven pulley I, adjust the wheel interval of driving pulley I and driven pulley I through the pulling force of exerting on motor I, and then adjust the tensile force of hold-in range I; the utility model discloses indirect device still includes operating mode analog unit, pulling force control unit and tensiometer, and operating mode analog unit includes motor, driving pulley, hold-in range and driven pulley, and the position structure of motor, driving pulley, hold-in range, driven pulley in the operating mode analog unit is the same with the position structure of motor I, driving pulley I, hold-in range I and driven pulley I in the operating mode, and the hold-in range exposes in the environment in the operating mode analog unit, and the tensiometer is used for detecting the tensile force of hold-in range; the tension control unit is connected with the working condition simulation unit and adjusts the tension of the synchronous belt through the tension applied to the motor; the direction and the acting point of the pulling force applied to the motor in the working condition simulation unit are the same as those of the pulling force applied to the motor I in the actual working condition;
the tension control unit controls tension applied to the motor or the driving pulley or the driven pulley and adopts a tension meter to test the tension of the synchronous belt under the tension; after N groups of tension and tension data are obtained, fitting an expression between the tension and the tension of the synchronous belt, and determining a target tension corresponding to the target tension of the synchronous belt according to the expression, wherein the target tension is the tension applied to the motor I; n is an integer greater than 1.
The method for adjusting the tension of the synchronous belt by adopting the indirect control device comprises the following steps:
s01: manufacturing a working condition simulation unit according to an actual working condition; the position structures of a motor, a driving pulley, a synchronous belt and a driven pulley in the working condition simulation unit are the same as the position structures of a motor I, a driving pulley I, a synchronous belt I and a driven pulley I in an actual working condition, and the synchronous belt in the working condition simulation unit is exposed; the direction and the acting point of the pulling force applied to the motor in the working condition simulation unit are the same as those of the pulling force applied to the motor I in the actual working condition;
s02: controlling tension of a synchronous belt adjusted by tension applied to a motor or a driving pulley or a driven pulley, and acquiring data of N groups of tension and tension; n is an integer greater than 1;
s03: fitting an expression between the tension and the tension of the synchronous belt;
s04: determining a target tension corresponding to a target tension of the synchronous belt according to an expression; and the target tension is acted on the motor I in the actual working condition.
The utility model discloses can adjust the distance between driving pulley and the driven pulleys through the adjustment to the pulling force of motor or to driving pulley's pulling force or to driven pulleys, and then adjustment hold-in range tensile force, only need according to the indirect controlling means that the adjustment mode among operating condition and the operating condition preparation corresponds can. Simultaneously the utility model provides a pulling force adjustment mode also can be multiple form, only need reach the adjustment apply motor or driving pulley or from the driven pulleys on the pulling force size can, the mode of concrete realization can adopt the arbitrary mode among the prior art, and adjustment tensile mode and structure are identical in operating condition and the operating mode simulation unit. In the following, only the structure in fig. 1 is taken as an example for explanation, and when the tension of the synchronous belt is controlled in other manners in actual working conditions or the tension is applied to the driving pulley or the driven pulley, it is only necessary to set the corresponding indirect control devices to have the same structure and control manner. The invention is further illustrated below by means of a specific embodiment in fig. 1:
example 1
Actual conditions still includes speed reducer I in this embodiment, and the input shaft of speed reducer I is connected from driven pulley I, and consequently, the operating condition simulation unit still includes the speed reducer in this embodiment, and the input shaft of speed reducer is connected from driven pulley, and the position structure of speed reducer is the same with the position structure of speed reducer I in the actual conditions in the operating condition simulation unit.
Referring to fig. 1 and 2, in the present embodiment, the working condition simulation unit includes a bottom plate 1, a support 2, a transition flange 4, a motor 3, a driving pulley 5, a synchronous belt 6, a driven pulley 7, and a speed reducer 8, where the support 2 is vertically fixed on the bottom plate 1, the motor 3 is fixed on one side of the support 2 through the transition flange 4, the speed reducer 8 is fixed on the other side of the support 2, an output shaft of the motor 3 is connected to the driving pulley 5, an input shaft of the speed reducer 8 is connected to the driven pulley 7, the synchronous belt 6 is connected to the driving pulley 5 and the driven pulley 7, and the synchronous belt 6 is exposed in the environment and can directly measure the. Driven band pulley and driving pulley stagger the setting in vertical direction in this embodiment, and driving pulley is located driven band pulley's top. The utility model discloses well flange is used for fixing the motor on the support to install the screw of screwing up on the flange, through the screwing up or loosening of screwing up the screw, whether the control motor is fixed on the support.
With continuing reference to fig. 1 and 3, the tension control unit of the present invention includes a back plate 9, an L-shaped plate 10, a guide rail 11, a slider 12, a tightening screw 13, a tension meter 14 and a tension belt 15, wherein the back plate 9 is vertically placed, the L-shaped plate 10 and the guide rail 11 are fixed on the back plate 9, and the guide rail 11 is located below the L-shaped plate 10; the slide block 12 is positioned on the guide rail 11 and can move up and down along the guide rail 11, the tension screw 13 is connected with the L-shaped plate 10 and the slide block 12, the tension meter 14 is fixed on the slide block 12, and the lower part of the tension meter 14 is connected with the motor 3 through the pull belt 15; the tension applied to the motor 3 is adjusted by adjusting the tightness of the tension screw 13, which is read by a tension meter 14, and the lower end of the back plate 9 is connected to the upper end of the bracket 2, together forming an indirect control device as shown in fig. 1. It is worth explaining, the utility model discloses require tensile mode of adjustment and structure identical among operating condition and the operating mode analog unit, consequently, must also include I, L template I, guide rail I, slider I, straining screw I, tensiometer I, stretching strap I and transition flange I etc. that correspond with attached figure 1 among the operating condition. When the tension is adjusted by adopting the structure of the embodiment, the position of the pull belt is positioned on the motor and is less than or equal to 2cm away from the transition flange.
The embodiment also provides a method for adjusting the tension of the synchronous belt by using the indirect control device shown in fig. 1, which comprises the following steps:
s01: and manufacturing a working condition simulation unit according to the actual working condition.
S02: controlling tension of a synchronous belt adjusted by tension applied on a motor, and acquiring data of N groups of tension and tension; n is an integer greater than 1; the specific method comprises the following steps:
s021: loosening the transition flange, adjusting a tensioning screw to apply certain tension to the sliding block, and reading the tension through a tension meter;
s022: tightening the transition flange, and measuring the corresponding tension of the synchronous belt by using a tension meter;
s023: and repeating the steps S021-S022N times to obtain N groups of data of the tension force and the tensioning force.
S03: fitting an expression between the tension and the tension of the synchronous belt; the specific fitting process can adopt a linear equation, a quadratic equation or a cubic equation for fitting, and finally an expression with proper fitting degree is obtained; step S02 and step S03 of the method belong to the calibration process.
S04: determining a target tension corresponding to a target tension of the synchronous belt according to an expression; and the target tension is acted on the motor I in the actual working condition. The step belongs to the tensioning process; under the actual working condition, the expected tension of the synchronous belt is obtained according to the actual working condition through an empirical value or an experimental value, and then the corresponding tension is calculated through the obtained expression. The tension meter I and the pull belt I in the actual working condition apply the tension to the proper position of the motor I, and the screw of the transition flange I is screwed down. At this time, although the tension of the synchronous belt in the actual working condition cannot be measured by the tension meter, the tension is known to be in accordance with the expectation by the indirect control device which is not easy to measure the tension of the synchronous belt.
The utility model discloses ingeniously through constructing a calibration device similar with operating condition, will be changed into indirect control at operating condition unable direct control's hold-in range tensile force under operating condition. The utility model relates to a device reliability is high, and can promote the nature by force, implements simply, possesses higher practical value.
The above description is only a preferred embodiment of the present invention, and the embodiment is not intended to limit the scope of the present invention, so that all the structural changes equivalent to the contents of the description and the drawings of the present invention are included in the scope of the appended claims of the present invention.
Claims (8)
1. An indirect control device for non-easy measurement of the tension of a synchronous belt is used for adjusting the tension of the synchronous belt in an actual working condition, wherein the actual working condition comprises a motor I, a driving pulley I, the synchronous belt I and a driven pulley I, an output shaft of the motor I is connected with the driving pulley I, the synchronous belt I is connected with the driving pulley I and the driven pulley I, the wheel spacing between the driving pulley I and the driven pulley I is adjusted through the tension applied to the motor I or the driving pulley I or the driven pulley I, and the tension of the synchronous belt I is adjusted; the tension tester is characterized by comprising a working condition simulation unit, a tension control unit and a tension meter;
the working condition simulation unit comprises a motor, a driving belt wheel, a synchronous belt and a driven belt wheel, the position structures of the motor, the driving belt wheel, the synchronous belt and the driven belt wheel in the working condition simulation unit are the same as the position structures of the motor I, the driving belt wheel I, the synchronous belt I and the driven belt wheel I in an actual working condition, and the direction and the acting point of the pulling force exerted on the motor in the working condition simulation unit are the same as those of the pulling force exerted on the motor I in the actual working condition; the synchronous belt in the working condition simulation unit is exposed, so that the tension of the synchronous belt can be conveniently detected by the tension meter; the tension control unit is connected with the working condition simulation unit, and the tension of the synchronous belt is adjusted through tension applied to the motor.
2. The indirect control device for the tension of the non-easy-to-measure synchronous belt according to claim 1, wherein the actual working condition further comprises a speed reducer I, the working condition simulation unit further comprises a speed reducer, an input shaft of the speed reducer I is connected with the driven belt pulley I, an input shaft of the speed reducer is connected with the driven belt pulley, and the position structure of the speed reducer in the working condition simulation unit is the same as that of the speed reducer I in the actual working condition.
3. The indirect control device for the tension of the non-easy-to-measure synchronous belt according to claim 2, wherein the working condition simulation unit further comprises a bottom plate, a bracket and a transition flange, the bracket is vertically fixed on the bottom plate, and the motor is fixed on the bracket through the transition flange.
4. The indirect control device for the tension of the non-easy-to-measure synchronous belt according to claim 3, wherein the transition flange is provided with a tightening screw, and whether the motor is fixed on the bracket is controlled by tightening or loosening the tightening screw.
5. The indirect control device for the tension of the non-easy-to-measure synchronous belt according to claim 3, wherein the tension control unit comprises a back plate, an L-shaped plate, a guide rail, a sliding block, a tightening screw, a tension meter and a pull belt, the back plate is vertically placed, the L-shaped plate and the guide rail are fixed on the back plate, and the guide rail is positioned below the L-shaped plate; the sliding block is positioned on the guide rail and can move up and down along the guide rail, the tension screw is connected with the L-shaped plate and the sliding block, the tension meter is fixed on the sliding block, and the lower part of the tension meter is connected with the motor through a pull belt; the tension applied to the motor is adjusted by adjusting the tightness of the tension screw, which is read by the tension meter.
6. The indirect control device of claim 5, wherein the lower end of the back plate is connected to the upper end of the bracket.
7. The indirect control device of claim 5, wherein the draw tape is located on the motor at a distance of less than or equal to 2cm from the transition flange.
8. The indirect control of non-easy to measure synchronous belt tension of claim 1 wherein the driven pulley is located below the drive pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243598.8U CN212225903U (en) | 2019-12-13 | 2019-12-13 | Indirect control device for measuring tension of synchronous belt difficultly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243598.8U CN212225903U (en) | 2019-12-13 | 2019-12-13 | Indirect control device for measuring tension of synchronous belt difficultly |
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| CN212225903U true CN212225903U (en) | 2020-12-25 |
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| CN201922243598.8U Active CN212225903U (en) | 2019-12-13 | 2019-12-13 | Indirect control device for measuring tension of synchronous belt difficultly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022593A (en) * | 2019-12-13 | 2020-04-17 | 实时侠智能控制技术有限公司 | Indirect control device and method for non-easily measuring tension of synchronous belt |
| CN111022593B (en) * | 2019-12-13 | 2024-05-14 | 上海捷勃特机器人有限公司 | Indirect control device and method for non-easy-to-measure synchronous belt tension |
-
2019
- 2019-12-13 CN CN201922243598.8U patent/CN212225903U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022593A (en) * | 2019-12-13 | 2020-04-17 | 实时侠智能控制技术有限公司 | Indirect control device and method for non-easily measuring tension of synchronous belt |
| CN111022593B (en) * | 2019-12-13 | 2024-05-14 | 上海捷勃特机器人有限公司 | Indirect control device and method for non-easy-to-measure synchronous belt tension |
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