CN219870120U - Simple torque sensor calibration machine - Google Patents
Simple torque sensor calibration machine Download PDFInfo
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- CN219870120U CN219870120U CN202321163373.1U CN202321163373U CN219870120U CN 219870120 U CN219870120 U CN 219870120U CN 202321163373 U CN202321163373 U CN 202321163373U CN 219870120 U CN219870120 U CN 219870120U
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- calibration
- rod
- rotating shaft
- torque sensor
- sliding table
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model discloses a simple torque sensor calibration machine, which comprises a frame, wherein a calibration machine component is fixedly arranged at the top of the frame, a rotating shaft is arranged in the calibration machine component in a penetrating manner, a sensor is arranged at the end part of the rotating shaft in a clamping manner, a calibration rod which is sleeved on the outer wall of the rotating shaft and is in a fan-shaped circular arc structure is arranged in the calibration machine component, and weights are respectively connected with the outer walls of two opposite sides of the calibration rod so as to drive the calibration rod to rotate clockwise or anticlockwise. According to the simple torque sensor calibration machine provided by the utility model, the calibration rod is in hexagonal close fit with the rotating shaft, so that no gap exists when the calibration rod is stressed, and the horizontal cutting balance of the whole calibration rod is achieved; through the tight fit of the two bearings, when a force value is loaded, the radial force is counteracted by the bearings, so that the whole rotating shaft is ensured to only receive torsion, and the measurement accuracy is ensured; and the calibration rod is matched with the flexible steel belt by adopting a fan-shaped arc structure, so that the accuracy of the stress of the torque arm is ensured.
Description
Technical Field
The utility model relates to the technical field of torque calibration, in particular to a simple torque sensor calibration machine.
Background
Torque is one of important mechanical parameters, and a torque sensor can convert torque into an electric signal, and is a sensor capable of sensing the torque and converting the torque into a usable output signal, and is used for measuring instruments for verifying, comparing and transmitting various standard torque values.
As in patent CN204881971U, a static calibration test stand for a torque sensor is disclosed, said test stand comprising: the rack is integrally welded by angle steel and is used for supporting and stabilizing; the two guide rails are horizontally arranged on the rack and are fixed on the rack through bolt installation, and the two guide rails are flat and smooth and are flush with two sides of the rack during installation; the supporting seat is fastened at one end of the two guide rails and used for supporting the loading mechanism; the sliding seat is arranged on the two guide rails and can slide linearly and reciprocally along the two guide rails, and is used for adjusting the axial installation space of the torque sensor to be calibrated and providing a counter moment for balancing the standard moment applied by the loading mechanism; the loading mechanism is arranged on the supporting seat and can rotate around the supporting seat through the supporting shaft, and a standard torque value is applied to the torque sensor to be calibrated. The center of the end face of the two sleeves is provided with an internal spline which is respectively connected and matched with the torsion shaft and the supporting shaft through a spline pair; the two flange plates are connected with the end surfaces of the two sleeves through inner hexagonal countersunk head screws and are used for installing a torque sensor to be calibrated; the torque sensor to be calibrated obtains a standard torque value through the loading mechanism, and a torque signal is output to the upper computer through the wireless communication module for display comparison. The utility model has reliable calibration and convenient operation, and can quickly and effectively realize the static calibration work of the torque sensor.
In the actual operation process, most calibration devices are too simple, accurate calibration cannot be achieved, the internal structure is unreasonable, accurate values cannot be obtained when the sensor is calibrated, and the sensor is interfered by other force values in the calibration process.
It can be seen that the above problems exist in the prior art, and improvements are needed.
Disclosure of Invention
In view of the foregoing problems in the prior art, an aspect of the present utility model is to provide a simple torque sensor calibration machine, so as to solve the problem that a calibration rod has a large weight and generates self gravity during calibration; and the radial force of the calibration device cannot be eliminated, so that the sensor is interfered and the like.
In order to achieve the above purpose, the simple torque sensor calibration machine provided by the utility model comprises a rack, wherein a calibration machine component is fixedly arranged at the top of the rack, a rotating shaft is arranged in the calibration machine component in a penetrating manner, a sensor is arranged at the end part of the rotating shaft in a clamping manner, a calibration rod which is sleeved on the outer wall of the rotating shaft and has a fan-shaped circular arc structure is arranged in the calibration machine component, and weights are respectively connected with the outer walls of two opposite sides of the calibration rod so as to drive the calibration rod to rotate clockwise or anticlockwise.
Through the inside rotation axis that runs through the setting of demarcation machine subassembly to and the calibration pole that sets up with rotation axis end connection's sensor and outer wall, the weight that the accessible both sides tip set up orders about the calibration pole and carries out clockwise or anticlockwise rotation, thereby orders about the detection of sensor to its moment of torsion, and clockwise for positive detection, anticlockwise for negative detection.
Preferably, the end part of the calibration machine component, which is far away from the frame, is provided with a U-shaped loading rod fixing table, the rotating shaft penetrates through the loading rod fixing table, and a bearing is arranged at the joint of the rotating shaft and the loading rod fixing table.
The calibration rod is in hexagonal close fit with the rotating shaft, so that no gap is reserved when the calibration rod is stressed, and the horizontal cutting balance of the whole calibration rod is achieved; and through the tight fit of the two bearings, when a force value is loaded, the two bearings counteract radial force, so that the whole rotating shaft is ensured to only receive torsion, and the measurement accuracy is ensured.
Preferably, a sliding table fixing block is arranged at the end part of the rotating shaft, far away from the calibration rod, a sensor is arranged between the rotating shaft and the sliding table fixing block in a clamping mode, and the calibration rod is driven to keep rotating axially so as to drive the rotating shaft to keep rotating axially.
Preferably, the outer walls of the two opposite sides of the calibration rod are symmetrically provided with calibration steel belts, the bottoms of the calibration steel belts are connected with a hanging rod, and hanging blocks are arranged at the bottoms of the hanging rods so as to be clamped with the weights.
The hanging weights are fixed by steel belts, the flexible steel belts are 0.2mm thick and light in weight, and inaccurate calibration caused by the increase of the distance from a stress point to a central force arm is avoided.
Preferably, the calibration unit comprises a bottom plate, the bottom plate is fixedly arranged at the top of the frame, a sliding table is arranged at the top of the bottom plate, the sliding table fixing block is fixed at the top of the sliding table, and the sliding table is assembled to drive the sliding table fixing block to keep sliding along the bottom plate.
The sliding table can move back and forth, so that the sensors can be conveniently installed and replaced with sensors of different heights.
Preferably, the calibration rod is specifically made of aviation aluminum integrally.
The calibration rod adopts aviation aluminum, has light weight and strong hardness, and adopts a fan-shaped arc structure to be matched with a flexible steel belt, so that the accurate stress of a torque arm is ensured.
The beneficial effects are that:
compared with the prior art, the simple torque sensor calibration machine provided by the utility model has the following beneficial effects:
1. the calibration rod is in hexagonal close fit with the rotating shaft, so that no gap is reserved when the calibration rod is stressed, and the horizontal cutting balance of the whole calibration rod is achieved; and through the tight fit of the two bearings, when a force value is loaded, the two bearings counteract radial force, so that the whole rotating shaft is ensured to only receive torsion, and the measurement accuracy is ensured.
2. The flexible steel belt is 0.2mm thick and light in weight by adopting a steel belt fixing mode through the weight hanging, and the inaccuracy in calibration caused by the increase of the distance from a stress point to a central force arm is avoided.
3. The calibration rod is made of aviation aluminum, the weight is light, the hardness is high, and the fan-shaped arc structure is matched with the flexible steel belt, so that the accuracy of the torque arm is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of a torque sensor calibration machine according to an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of a calibration machine assembly according to an embodiment of the present utility model.
The main reference numerals:
1. a frame; 2. a calibrator assembly; 201. a bottom plate; 202. a sliding table; 203. a slipway fixing block; 204. a sensor; 205. a rotation shaft; 206. a loading rod fixing table; 207. calibrating a rod; 208. calibrating the steel belt; 209. a boom; 210. hanging blocks; 211. a weight; 212. and (3) a bearing.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-2, a simple torque sensor calibration machine comprises a frame 1, wherein a calibration machine component 2 is fixedly arranged at the top of the frame 1, a rotating shaft 205 is arranged in the calibration machine component 2 in a penetrating manner, a sensor 204 is arranged at the end part of the rotating shaft 205 in a clamping manner, a calibration rod 207 which is sleeved on the outer wall of the rotating shaft 205 and is in a fan-shaped circular arc structure is arranged in the calibration machine component 2, and weights 211 are respectively connected with the outer walls of two opposite sides of the calibration rod 207 so as to drive the calibration rod 207 to rotate clockwise or anticlockwise.
The simple torque sensor calibration machine is mainly used for ensuring that no gap exists when the calibration rod 207 is stressed through the hexagonal close fit between the calibration rod 207 and the rotating shaft 205, so that the horizontal cutting balance of the whole calibration rod 207 is achieved; and through the tight fit of the two bearings 212, when the force value is loaded, the two bearings 212 counteract the radial force, so that the whole rotary shaft 205 is ensured to only receive torsion, and the measurement accuracy is ensured; the hanging weight 211 is used for fixing the steel belt, the thickness of the steel belt 208 is calibrated to be 0.2mm, the weight is light, and the inaccuracy of calibration caused by the increase of the distance from a stress point to a central force arm is avoided; and the calibration rod 207 is made of aviation aluminum, so that the weight is light, the hardness is high, and the fan-shaped circular arc structure is matched with the calibration steel belt 208, so that the accuracy of the torque arm stress is ensured.
In the technical scheme provided by the utility model, it can be seen from fig. 1 and 2 that the end that frame 1 was kept away from to demarcation machine assembly 2 is provided with the loading pole fixed station 206 that is "U" style of calligraphy, and rotation axis 205 runs through in the inside of loading pole fixed station 206, and keep away from the end of frame 1 and the outer wall of loading pole fixed station 206 keep the parallel and level, and rotation axis 205 still connects with the department of meeting of loading pole fixed station 206 and is provided with bearing 212, through the tight fit of two bearing 212, when loading force value, two bearing 212 can offset radial force, thereby guarantee that whole rotation axis 205 only receives torsion, thereby guaranteed measurement accuracy.
Furthermore, a sliding table fixing block 203 is further arranged at the end part of the rotating shaft 205 far away from the calibration rod 207, the sensor 204 is clamped between the rotating shaft 205 and the sliding table fixing block 203, the rotating shaft 205 and the sliding table fixing block 203 are tightly connected through a hexagonal screw rod, and the calibration rod 207 is driven to keep rotating axially so as to drive the rotating shaft 205 to keep rotating axially, so that the sensor 204 is driven to perform torque measurement.
Moreover, the outer walls of the two opposite sides of the calibration rod 207 are symmetrically provided with calibration steel belts 208, the thickness of the calibration steel belts 208 is 0.2mm, the weight of the calibration steel belts 208 is lighter, inaccurate calibration caused by the increase of the distance from a stress point to a central force arm is avoided, the bottom of the calibration steel belts 208 is connected with a suspension rod 209, the bottom of the suspension rod 209 is provided with a hanging block 210 for clamping weights 211, the calibration rod 207 is driven to rotate clockwise or anticlockwise, clockwise positive detection and anticlockwise negative detection are achieved.
Furthermore, the calibration machine assembly 2 further comprises a bottom plate 201, the bottom plate 201 is fixedly arranged at the top of the frame 1, a sliding table 202 is further arranged at the top of the bottom plate 201 in a sliding manner, a sliding table fixing block 203 is fixedly arranged at the top of the sliding table 202, the sliding table 202 can slide along the bottom plate 201, and therefore the distance between a rotating shaft 205 and the sliding table fixing block 203 is changed, and the sensor 204 is convenient to install and replace sensors 204 with different heights.
In the technical scheme provided by the utility model, it can be seen from fig. 1 that the calibration rod 207 is specifically made for aviation aluminum material is integrative, and the quality light hardness is strong, and adopts fan-shaped circular arc structure cooperation to mark steel band 208, guarantees that moment of torsion arm of force atress is accurate.
Working principle: by sliding the sliding table 202, the distance between the rotating shaft 205 and the sliding table fixing block 203 is adjusted, so that the sensor 204 is convenient to install and replace the sensors 204 with different heights;
then the calibration rod 207, the rotary shaft 205 and the sensor 204 are tightly connected through a hexagonal screw rod, so that no gap is reserved when the calibration rod 207 is stressed, and the horizontal cutting balance of the whole calibration rod 207 is achieved;
the bottoms of the calibration steel belts 208 on the two sides of the calibration rod 207 are respectively clamped with weights 211, so that the calibration rod 207 is driven to rotate clockwise or anticlockwise, and when a force value is loaded, the two bearings 212 counteract radial force through tight fit of the two bearings 212, so that the whole rotating shaft 205 is guaranteed to only receive torsion, and measurement accuracy is guaranteed.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (6)
1. The utility model provides a simple and easy torque sensor calibration machine, its characterized in that, including frame (1), the fixed machine subassembly (2) that marks that are provided with in top of frame (1), mark the inside rotation axis (205) that runs through of machine subassembly (2), the tip joint of rotation axis (205) is provided with sensor (204), mark the inside of machine subassembly (2) be provided with cup joint in be fan-shaped circular arc structure's calibration pole (207) of rotation axis (205) outer wall, the connection respectively is provided with weight (211) in the outer wall of the relative both sides of calibration pole (207), in order to order about calibration pole (207) keep clockwise rotation or anticlockwise rotation.
2. The simple torque sensor calibration machine according to claim 1, wherein a loading rod fixing table (206) in a U shape is arranged at the end part of the calibration machine component (2) far away from the frame (1), the rotating shaft (205) penetrates through the loading rod fixing table (206), and a bearing (212) is arranged at the joint of the rotating shaft (205) and the loading rod fixing table (206).
3. The simple torque sensor calibration machine according to claim 2, wherein a sliding table fixing block (203) is arranged at the end part of the rotating shaft (205) far away from the calibration rod (207), a sensor (204) is clamped between the rotating shaft (205) and the sliding table fixing block (203), and the calibration rod (207) is driven to keep rotating axially so as to drive the rotating shaft (205) to keep rotating axially.
4. A simple torque sensor calibration machine according to claim 3, wherein calibration steel belts (208) are symmetrically arranged on the outer walls of two opposite sides of the calibration rod (207), a hanging rod (209) is connected to the bottom of the calibration steel belts (208), and a hanging block (210) is arranged at the bottom of the hanging rod (209) so as to be clamped with the weights (211).
5. The simple torque sensor calibration machine according to claim 4, wherein the calibration machine assembly (2) comprises a bottom plate (201), the bottom plate (201) is fixedly arranged at the top of the frame (1), a sliding table (202) is arranged at the top of the bottom plate (201), the sliding table fixing block (203) is fixed at the top of the sliding table (202), and the sliding table (202) is assembled to drive the sliding table fixing block (203) to keep sliding along the bottom plate (201).
6. The simple torque sensor calibration machine according to claim 1, characterized in that said calibration rod (207) is made in one piece in particular in aviation aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321163373.1U CN219870120U (en) | 2023-05-15 | 2023-05-15 | Simple torque sensor calibration machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321163373.1U CN219870120U (en) | 2023-05-15 | 2023-05-15 | Simple torque sensor calibration machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870120U true CN219870120U (en) | 2023-10-20 |
Family
ID=88336739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321163373.1U Active CN219870120U (en) | 2023-05-15 | 2023-05-15 | Simple torque sensor calibration machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870120U (en) |
-
2023
- 2023-05-15 CN CN202321163373.1U patent/CN219870120U/en active Active
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