CN115165177B - Belt pulley type wireless torque measuring sensor for rotary shaft system - Google Patents
Belt pulley type wireless torque measuring sensor for rotary shaft system Download PDFInfo
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- CN115165177B CN115165177B CN202210797082.1A CN202210797082A CN115165177B CN 115165177 B CN115165177 B CN 115165177B CN 202210797082 A CN202210797082 A CN 202210797082A CN 115165177 B CN115165177 B CN 115165177B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a pulley type wireless torque measuring sensor for a rotating shaft system, which comprises a bottom plate, a bracket and a control box, wherein the bracket is fixedly connected with the top of the bottom plate, a sliding sleeve is sleeved on the bracket in a sliding way, and a fixed groove is formed in the bottom of the sliding sleeve. According to the invention, the flexible deformation simple beam and the high-precision strain induction measuring unit are added to the inside of the belt pulley, so that the micro deformation of the belt pulley caused by torque transmission can be captured, further, a coding signal containing torque information is generated, and the characteristics of high-speed rotation of a rotating shaft system are considered. And the storage battery is not required to be placed for power supply, so that the self weight is reduced, the dynamic balance of the sensor is better ensured, and the design is more optimized.
Description
Technical Field
The invention relates to the technical field of torque measuring sensors, in particular to a pulley type wireless torque measuring sensor for a rotating shaft system.
Background
At present, the pulley type torque sensor is mainly applied to motor torque measurement in China, and the output torque of the motor is measured by installing a pulley type elastomer to an output shaft of the motor. In the process of rotating and outputting torque by the motor, the pulley-shaped elastic body can generate a certain amount of tiny deformation due to the fact that the elastic body transmits torque and is influenced by the torque. The deformation amount can be accurately measured by the built-in sensitive measuring unit at the deformation position of the elastic body, and the current motor output torque value is obtained through certain operation conversion. For torque measurement of a rotary shaft system, a flange type torque sensor or a cylindrical shaft type torque sensor is commonly used currently.
However, the pulley type torque sensor is developed for motor application, is installed at the output shaft end of the motor, one end of the installation position (namely, far away from the motor side) of the pulley type torque sensor is necessarily an open space, and has a single limited application range and application scene. The power supply mode adopts the storage battery to supply power, is only suitable for short-term and less-time measurement requirements, and the storage battery is required to be disassembled and taken out for charging after the structure is used for the next measurement. Battery powered systems also add complexity and require dynamic balancing considerations where the battery arrangement must be symmetrical (or a single side with the battery installed and the balancing weight added to the symmetrical side) to maintain balance.
However, although the flange type torque sensor or the cylindrical shaft type torque sensor can be used for measuring the torque of a rotating shaft system, the flange type torque sensor or the cylindrical shaft type torque sensor must be connected in series into the shaft system as a part of the shaft system, does not have the transmission function of the belt type torque sensor, and has no application possibility and value for the rotating shaft system driven by belt transmission in a compact space.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to solve the problems that a flange type torque sensor or a cylindrical shaft type torque sensor in the prior art can be used for torque measurement of a rotating shaft system, but the flange type torque sensor or the cylindrical shaft type torque sensor is required to be connected in series into the shaft system as a part of the shaft system, does not have the transmission function of a belt type torque sensor, and has no application possibility and value for the rotating shaft system driven by belt transmission in a compact space.
2. Technical proposal
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the pulley type wireless torque measurement sensor for the rotating shaft system comprises a bottom plate, a support and a control box, wherein the support is fixedly connected with the top of the bottom plate, a sliding sleeve is sleeved on the support in a sliding manner, a fixed groove is formed in the bottom of the sliding sleeve, a fixing mechanism is fixedly connected in the fixed groove, and one end of the sliding sleeve is fixedly connected with the outer wall of the control box;
the wireless induction power supply module, the signal conversion module and the wireless signal receiving module are arranged in the control box, the top of the control box is fixedly connected with a mounting sleeve through a fixed block, one side of the mounting sleeve is fixedly connected with a receiving ring, and an induction ring corresponding to the receiving ring is inserted in the mounting sleeve in a rotating way;
a fixed cylinder is fixedly connected to one side of the induction ring, a belt groove is formed in the outer wall of the fixed cylinder in a surrounding mode, a deformation supporting beam is inserted in the fixed cylinder, the deformation supporting beam is connected with the inner wall of the fixed cylinder through a plurality of strain measurement units, and a wireless signal transmitting module is fixedly embedded in the inner wall of the fixed cylinder;
the output end of the strain measurement unit is connected with the input end of the wireless signal transmitting module, the output end of the wireless signal transmitting module is connected with the input end of the wireless signal receiving module, and the output ends of the wireless induction power supply module and the wireless signal receiving module are connected with the input end of the signal conversion module.
Preferably, a plurality of locking blocks are fixedly connected to the bottom of the bottom plate, and locking openings are formed in the locking blocks.
Preferably, the fixing mechanism comprises a fixing rod, an L-shaped clamping rod is sleeved on the fixing rod in a sliding mode, and a plurality of clamping grooves corresponding to the L-shaped clamping rod are formed in the support at equal intervals.
Preferably, the fixing rod is sleeved with a spring, and two ends of the spring are fixedly connected with the L-shaped clamping rod and the inner wall of the fixing groove respectively.
Preferably, the outer wall of the control box is fixedly connected with a sliding block, the support is provided with a sliding groove corresponding to the sliding block, a sliding rod is fixedly connected in the sliding groove, and the sliding block is provided with a sliding opening corresponding to the sliding rod.
Preferably, one side of the control box is provided with a mounting opening, a baffle is connected in the mounting opening through rotation of the rotating shaft, and one end of the baffle, which is far away from the rotating shaft, is fixedly connected with the inner wall of the mounting opening through a locking screw.
Preferably, a plurality of supporting blocks are fixedly connected to the outer wall of the fixed cylinder, the supporting blocks are in sliding connection with the mounting sleeve through guide rods, annular sliding rails corresponding to the guide rods are arranged on the mounting sleeve, and a limiting block is fixedly connected to one end of the guide rods, which is located in the annular sliding rails.
Preferably, a plurality of balls are slidably connected to the annular slide rail, and edges of the balls are in contact with the limiting block.
Preferably, a plurality of fastening blocks are fixedly connected to one side, far away from the fixed cylinder, of the induction ring, and fastening bolts are inserted into the fastening blocks in a threaded mode.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) According to the invention, the flexible deformation simple beam and the high-precision strain induction measuring unit are added to the inside of the belt pulley, so that the micro deformation of the belt pulley caused by torque transmission can be captured, further, a coding signal containing torque information is generated, and the characteristics of high-speed rotation of a rotating shaft system are considered. And the storage battery is not required to be placed for power supply, so that the self weight is reduced, the dynamic balance of the sensor is better ensured, and the design is more optimized.
(2) According to the invention, the belt pulley with the original single transmission function can be replaced on the premise of not changing the design of the closed shafting driven by the belt pulley, and the torque borne by the main motor can be measured while the rotating speed torque of the main motor brought by the belt is transmitted. The shafting torque measurement solution can also be provided on the premise of reducing the shafting complexity as much as possible and not adding an additional torque measurement unit when a designer designs the mechanical structure of the rotary shafting. Therefore, the torque input of the rotating shaft system can be monitored in real time, based on the real-time torque input monitoring, a plurality of (such as input power, efficiency transmission and the like) state monitoring can be carried out, the running condition of the shaft system can be comprehensively monitored in real time, and the fault searching, positioning and analyzing can be carried out after the normal running or fault of the shaft system.
Drawings
Fig. 1 is a schematic structural diagram of a pulley type wireless torque measurement sensor for a rotating shaft system according to the present invention;
FIG. 2 is a schematic diagram of the structure at A in FIG. 1;
fig. 3 is a schematic diagram of a control system of a pulley type wireless torque measurement sensor for a rotating shaft system according to the present invention.
In the figure: the device comprises a base plate 1, a support 2, a control box 3, a sliding sleeve 4, a wireless induction power supply module 5, a signal conversion module 6, a wireless signal receiving module 7, a receiving ring 8, a fixing block 9, a mounting sleeve 10, an induction ring 11, a fixing cylinder 12, a belt groove 13, a deformation supporting beam 14, a strain measuring unit 15, a wireless signal transmitting module 16, a locking block 17, a fixing rod 18, a clamping rod 19L-shaped, a spring 20, a sliding block 21, a sliding rod 22, a rotating shaft 23, a baffle 24, a locking screw 25, a supporting block 26, a guide rod 27, a limiting block 28, a rolling ball 29, a fastening block 30 and a fastening bolt 31.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1:
referring to fig. 1-3, a pulley type wireless torque measuring sensor for a rotating shaft system comprises a bottom plate 1, a support 2 and a control box 3, wherein a plurality of locking blocks 17 are fixedly connected to the bottom of the bottom plate 1, locking ports are formed in the locking blocks 17, the bottom plate 1 is conveniently fixed, the support 2 is fixedly connected with the top of the bottom plate 1, a sliding sleeve 4 is sleeved on the support 2 in a sliding manner, a sliding block 21 is fixedly connected to the outer wall of the control box 3 and used for supporting the control box 3, a sliding groove corresponding to the sliding block 21 is formed in the support 2, a sliding rod 22 is fixedly connected in the sliding groove, and a sliding port corresponding to the sliding rod 22 is formed in the sliding block 21 and used for supporting the sliding block 21;
in the invention, one side of a control box 3 is provided with a mounting opening for arranging a control element, the mounting opening is rotatably connected with a baffle 24 through a rotating shaft 23 to protect the control element, one end of the baffle 24 far away from the rotating shaft 23 is fixedly connected with the inner wall of the mounting opening through a locking screw 25, the bottom of a sliding sleeve 4 is provided with a fixing groove, and a fixing mechanism is fixedly connected in the fixing groove;
according to the invention, the fixing mechanism comprises a fixing rod 18 for supporting an L-shaped clamping rod 19, the fixing rod 18 is sleeved with the L-shaped clamping rod 19 in a sliding manner, a plurality of clamping grooves corresponding to the L-shaped clamping rod 19 are equidistantly formed in the bracket 2 and used for fixing the position of the sliding sleeve 4, the fixing rod 18 is sleeved with a spring 20, two ends of the spring 20 are respectively fixedly connected with the L-shaped clamping rod 19 and the inner wall of the fixing groove, a certain elastic support is provided for the L-shaped clamping rod 19, and one end of the sliding sleeve 4 is fixedly connected with the outer wall of the control box 3;
in the invention, a wireless induction power supply module 5, a signal conversion module 6 and a wireless signal receiving module 7 are arranged in a control box 3, the top of the control box 3 is fixedly connected with a mounting sleeve 10 through a fixed block 9, one side of the mounting sleeve 10 is fixedly connected with a receiving ring 8, an induction ring 11 corresponding to the receiving ring 8 is rotatably inserted in the mounting sleeve 10 and used for wireless power supply, one side of the induction ring 11 far away from a fixed cylinder 12 is fixedly connected with a plurality of fastening blocks 30, and fastening bolts 31 are inserted on the fastening blocks 30 in a threaded manner;
in the invention, one side of an induction ring 11 is fixedly connected with a fixed cylinder 12, the outer wall of the fixed cylinder 12 is fixedly connected with a plurality of supporting blocks 26, the supporting blocks 26 are in sliding connection with a mounting sleeve 10 through guide rods 27 and are used for supporting the fixed cylinder 12, the mounting sleeve 10 is provided with annular sliding rails corresponding to the guide rods 27, one end of each guide rod 27 positioned in each annular sliding rail is fixedly connected with a limiting block 28, the annular sliding rails are in sliding connection with a plurality of balls 29, the edges of the balls 29 are in contact with the limiting blocks 28, and friction force between the limiting blocks 28 and the inner walls of the annular sliding rails is reduced;
in the invention, a belt groove 13 is arranged on the outer wall of a fixed cylinder 12 in a surrounding manner, a deformation supporting beam 14 is inserted in the fixed cylinder 12, the deformation supporting beam 14 is connected with the inner wall of the fixed cylinder 12 through a plurality of strain measuring units 15 and is used for forming a torsion measuring full bridge circuit, and a wireless signal transmitting module 16 is fixedly embedded on the inner wall of the fixed cylinder 12;
in the invention, the output end of the strain measurement unit 15 is connected with the input end of the wireless signal transmitting module 16, the output end of the wireless signal transmitting module 16 is connected with the input end of the wireless signal receiving module 7, the output ends of the wireless induction power supply module 5 and the wireless signal receiving module 7 are both connected with the input end of the signal conversion module 6, and the signal receiving module 6 can convert the received coded signals to generate frequency pulse signals for output.
In the invention, when the sensor transmits torque, the deformation supporting beam 14 inside the sensor generates corresponding flexible deformation, and the high-precision strain measurement unit 15 captures the sensed deformation in real time and wirelessly transmits and outputs a digital signal through the signal coding and transmitting module.
According to the invention, the height of the sensor can be adjusted by sliding the sliding sleeve 4, the height of the sliding sleeve 4 can be fixed by the L-shaped clamping rod 19, meanwhile, the arrangement of the sliding rod 22 and the sliding block 21 can prevent the control box 3 from shaking, and the spring 20 can play a certain elastic supporting role on the L-shaped clamping rod 19.
According to the invention, the flexible deformation simple beam and the high-precision strain induction measuring unit are added in the belt pulley, so that the micro deformation of the belt pulley caused by torque transmission can be captured, and further, a coding signal containing torque information is generated. Considering the characteristic of high-speed rotation of the rotating shaft system, the invention is designed into a wireless induction power supply form and a wireless signal transmitting and receiving data transmission form on the premise of not changing the design of the shaft system as much as possible, so that the whole rotating component is free from the constraint of a cable wire and is fully suitable for the high-speed rotating shaft system. And the storage battery is not required to be placed for power supply, so that the self weight is reduced, the dynamic balance of the sensor is better ensured, and the design is more optimized.
According to the invention, the belt pulley with the original single transmission function can be replaced on the premise of not changing the design of the closed shafting driven by the belt pulley, and the torque borne by the main motor can be measured while the rotating speed torque of the main motor brought by the belt is transmitted. The shafting torque measurement solution can also be provided on the premise of reducing the shafting complexity as much as possible and not adding an additional torque measurement unit when a designer designs the mechanical structure of the rotary shafting. Therefore, the torque input of the rotating shaft system can be monitored in real time, based on the real-time torque input monitoring, a plurality of (such as input power, efficiency transmission and the like) state monitoring can be carried out, the running condition of the shaft system can be comprehensively monitored in real time, and the fault searching, positioning and analyzing can be carried out after the normal running or fault of the shaft system.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The pulley type wireless torque measurement sensor for the rotating shaft system comprises a bottom plate (1), a support (2) and a control box (3), and is characterized in that the support (2) is fixedly connected with the top of the bottom plate (1), a sliding sleeve (4) is sleeved on the support (2) in a sliding manner, a fixed groove is formed in the bottom of the sliding sleeve (4), a fixing mechanism is fixedly connected in the fixed groove, and one end of the sliding sleeve (4) is fixedly connected with the outer wall of the control box (3);
the wireless induction power supply module (5), the signal conversion module (6) and the wireless signal receiving module (7) are arranged in the control box (3), the top of the control box (3) is fixedly connected with the installation sleeve (10) through the fixed block (9), one side of the installation sleeve (10) is fixedly connected with the receiving ring (8), and the induction ring (11) corresponding to the receiving ring (8) is inserted in the installation sleeve (10) in a rotating manner;
one side of the induction ring (11) is fixedly connected with a fixed cylinder (12), a belt groove (13) is formed in the outer wall of the fixed cylinder (12) in a surrounding mode, a deformation supporting beam (14) is inserted into the fixed cylinder (12), the deformation supporting beam (14) is connected with the inner wall of the fixed cylinder (12) through a plurality of strain measurement units (15), and a wireless signal transmitting module (16) is fixedly embedded in the inner wall of the fixed cylinder (12);
the output end of the strain measurement unit (15) is connected with the input end of the wireless signal transmitting module (16), the output end of the wireless signal transmitting module (16) is connected with the input end of the wireless signal receiving module (7), and the output ends of the wireless induction power supply module (5) and the wireless signal receiving module (7) are connected with the input end of the signal conversion module (6).
2. The pulley-type wireless torque measurement sensor for the rotary shaft system according to claim 1, wherein a plurality of locking blocks (17) are fixedly connected to the bottom of the bottom plate (1), and locking openings are formed in the locking blocks (17).
3. The pulley-type wireless torque measurement sensor for the rotary shaft system according to claim 1, wherein the fixing mechanism comprises a fixing rod (18), an L-shaped clamping rod (19) is sleeved on the fixing rod (18) in a sliding mode, and a plurality of clamping grooves corresponding to the L-shaped clamping rod (19) are formed in the bracket (2) at equal intervals.
4. The pulley-type wireless torque measurement sensor for the rotary shaft system according to claim 3, wherein the fixing rod (18) is sleeved with a spring (20), and two ends of the spring (20) are fixedly connected with the L-shaped clamping rod (19) and the inner wall of the fixing groove respectively.
5. The pulley-type wireless torque measurement sensor for the rotary shaft system according to claim 1, wherein a sliding block (21) is fixedly connected to the outer wall of the control box (3), a sliding groove corresponding to the sliding block (21) is formed in the support (2), a sliding rod (22) is fixedly connected to the sliding groove, and a sliding opening corresponding to the sliding rod (22) is formed in the sliding block (21).
6. The pulley-type wireless torque measurement sensor for a rotating shaft system according to claim 1, wherein a mounting port is formed in one side of the control box (3), a baffle plate (24) is rotatably connected in the mounting port through a rotating shaft (23), and one end, far away from the rotating shaft (23), of the baffle plate (24) is fixedly connected with the inner wall of the mounting port through a locking screw (25).
7. The pulley-type wireless torque measurement sensor for the rotary shaft system according to claim 1, wherein a plurality of supporting blocks (26) are fixedly connected to the outer wall of the fixed cylinder (12), the supporting blocks (26) are slidably connected with the mounting sleeve (10) through guide rods (27), annular sliding rails corresponding to the guide rods (27) are arranged on the mounting sleeve (10), and a limiting block (28) is fixedly connected to one end of the guide rods (27) located in the annular sliding rails.
8. The pulley-type wireless torque measurement sensor for a rotating shaft system according to claim 7, wherein a plurality of balls (29) are slidably connected to the annular slide rail, and edges of the balls (29) are in contact with a stopper (28).
9. The pulley-type wireless torque measurement sensor for the rotary shaft system according to claim 1, wherein a plurality of fastening blocks (30) are fixedly connected to one side, far away from the fixed cylinder (12), of the induction ring (11), and fastening bolts (31) are inserted into the fastening blocks (30) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210797082.1A CN115165177B (en) | 2022-07-06 | 2022-07-06 | Belt pulley type wireless torque measuring sensor for rotary shaft system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210797082.1A CN115165177B (en) | 2022-07-06 | 2022-07-06 | Belt pulley type wireless torque measuring sensor for rotary shaft system |
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| CN115165177A CN115165177A (en) | 2022-10-11 |
| CN115165177B true CN115165177B (en) | 2023-06-20 |
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| CN202210797082.1A Active CN115165177B (en) | 2022-07-06 | 2022-07-06 | Belt pulley type wireless torque measuring sensor for rotary shaft system |
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| CN115165177A (en) | 2022-10-11 |
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