CN213714613U

CN213714613U - Loading device and bilateral torque calibration test machine provided with same

Info

Publication number: CN213714613U
Application number: CN202022201317.5U
Authority: CN
Inventors: 王平; 刘红颜
Original assignee: Changzhou Tuoke Intelligent Technology Co ltd
Current assignee: Changzhou Tuoke Intelligent Technology Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-07-16
Anticipated expiration: 2030-09-30

Abstract

The utility model relates to a loading device, which is provided with a fixed bracket; the device also comprises a bidirectional multistage loading unit arranged on the fixed support, a driving unit arranged on one side of the fixed support and used for driving the bidirectional multistage loading unit to act, a PC (personal computer) used for acquiring pressure parameters of the bidirectional multistage loading unit and issuing control commands according to the real-time pressure parameters, and a control cabinet used for controlling the driving unit to act according to the commands issued by the PC; the bidirectional multistage loading unit acts on the test product and generates upward or downward acting force on the test product. The utility model aims at overcoming the defect that prior art exists, provide a loading unit simple structure, be convenient for equipment, the adjustable and little novel bilateral moment calibration test machine of noise of power value.

Description

Loading device and bilateral torque calibration test machine provided with same

Technical Field

The utility model belongs to the technical field of bilateral moment detects and specifically relates to a novel bilateral moment calibration test machine.

Background

The electric power-assisted bicycle adopting the torque sensor in the transportation means for riding instead of walk is comfortable, easy and smooth in riding, good in following performance and excellent in upwind climbing performance, and the torque-assisted bicycle has the great advantages of environmental protection and energy conservation, and reduces the electric energy consumption of a lithium battery which is a bicycle with limited energy due to the participation of manpower. Compared with pure electric drive, the battery capacity can be reduced by half under the condition of the same endurance mileage, and the required power, weight and cost of the motor can be greatly reduced. At present, the torque sensor needs to be detected in advance before leaving the factory, and can be delivered out of the factory and assembled with a vehicle body after being detected to be qualified. However, the loading unit of the existing torque calibration testing machine is complex in structure, which directly causes the whole device to be troublesome to assemble; in addition, the force value of the existing weight gradually loading structure is fixed, and the noise is large in the test process; therefore, it is necessary to design a novel bilateral moment calibration testing machine with a simple loading unit structure, convenient assembly, adjustable force value and low noise.

Disclosure of Invention

The utility model aims at overcoming the defect that prior art exists, provide a loading unit simple structure, be convenient for equipment, the adjustable and little novel bilateral moment calibration test machine of noise of power value.

Realize the utility model discloses the technical scheme of purpose is: a loading device is provided with a fixed bracket; the device also comprises a bidirectional multistage loading unit arranged on the fixed support, a driving unit arranged on one side of the fixed support and used for driving the bidirectional multistage loading unit to act, a PC (personal computer) used for acquiring pressure parameters of the bidirectional multistage loading unit and issuing control commands according to the real-time pressure parameters, and a control cabinet used for controlling the driving unit to act according to the commands issued by the PC; the bidirectional multistage loading unit acts on the test product and generates upward or downward acting force on the test product.

Furthermore, the bidirectional multistage loading unit comprises a power execution unit for generating an upward or downward acting force, a force transducer installed at the output tail end of the power execution unit, and a loading force arm installed at the upper end of the force transducer; the loading force arm is mounted at the stress end of the test product.

Further, the power execution unit is a hydraulic cylinder.

Furthermore, the driving unit comprises an oil tank for storing hydraulic oil, an oil inlet and outlet pipe for communicating the oil tank with the hydraulic cylinder, a driving motor capable of generating power to drive the hydraulic oil in the oil tank to enter and exit the hydraulic cylinder, and a pressure testing device arranged at the front end of the oil inlet and outlet pipe.

Further, the pressure testing device is a pressure gauge for detecting oil pressure in the oil inlet pipe and the oil outlet pipe.

A bilateral moment calibration test machine provided with the loading device comprises a workbench, a fixing device, a guide clamp, a control switch, an indicator light, a power supply and a digital multimeter, wherein the workbench is erected above a bidirectional multistage loading unit; and a loading force arm on the power execution unit penetrates through the workbench and is mounted on cranks at two sides of a test product.

After the technical scheme is adopted, the utility model discloses following positive effect has:

(1) the utility model discloses two-way multistage loading unit among the loading device can produce two-way effort, and effort and downward effort make progress promptly, except can be used to bilateral moment calibration test machine, still can be used to other product tests, realizes a tractor serves several purposes, practices thrift manufacturing cost.

(2) The utility model discloses after the loading device after the improvement uses in the bilateral moment calibration test machine, it has not only reduced the noise greatly, and the loading device's that corresponds structure is compared current structure moreover and has obtained very big simplification, the maintenance of the installation of being convenient for and later stage spare part.

(3) The utility model discloses being the non-quantitative loading by weight ration loading optimization in the past, can satisfying the random adjustment of multistage loading power, its test range is wide and test loading power is more accurate, the optimization and the improvement of the later stage product of being convenient for.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

Fig. 1 is a perspective view of a loading device of the present invention;

fig. 2 is a perspective view of the bidirectional multistage loading unit of the present invention;

fig. 3 is a perspective view of the bilateral torque testing machine of the present invention.

The reference numbers in the drawings are as follows: the device comprises a control cabinet 00, a fixing support 10, a bidirectional multistage loading unit 20, a power execution unit 21, a load cell 22, a loading arm 23, an adapter 24, a driving unit 30, an oil tank 31, an oil inlet and outlet pipe 32, a driving motor 33, a pressure testing device 34, a PC (personal computer) 40, a workbench 50, a fixing device 60, a guide clamp 70, a control switch and indicator lamp 80, a power supply 90 and a digital multimeter 100.

Detailed Description

(example 1)

Referring to fig. 1 to 2, the present invention has a fixing bracket 10, and further includes a bidirectional multistage loading unit 20 mounted on the fixing bracket 10, a driving unit 30 disposed on one side of the fixing bracket 10 and used for driving the bidirectional multistage loading unit 20 to move, a PC 40 for acquiring pressure parameters of the bidirectional multistage loading unit 20 and issuing control commands according to real-time pressure parameters, and a control cabinet 00 for controlling the movement of the driving unit 30 according to commands issued by the PC 40; the bi-directional multi-stage loading unit 20 acts on the test product and generates an upward or downward force on the test product.

In the embodiment, more specifically, the bidirectional multistage loading unit 20 includes a power execution unit 21 for generating an upward or downward acting force, a load cell 22 installed at the output end of the power execution unit 21, and a loading arm 23 installed at the upper end of the load cell 22, more specifically, the power execution unit 21 is installed on the fixed support 10 by bolt locking, the output end of the power execution unit 21 is connected with the lower end of the load cell 22 by an adapter 24, where the adapter 24 is in threaded connection with the power execution unit 21, the upper end of the adapter 24 is locked at the lower end of the load cell 22 by a bolt, and the upper end of the load cell 22 is connected with the loading arm 23 by a bolt locking; the force measuring sensor 22 is in communication connection with the PC 40, and the PC 40 can acquire pressure parameter information measured by the force measuring sensor 22 in real time and control the driving unit 30 to drive the power execution unit 21 to output corresponding loading force according to a set loading value; the loading arm 23 is mounted at the stressed end of the test product, more specifically, a notch is formed at the near end of the loading arm 23, and the stressed end of the test product is placed in the notch.

More specifically, in the embodiment, the power executing unit 21 is a hydraulic cylinder, but is not limited to a hydraulic cylinder, and a hydraulic jack or a pneumatic cylinder may be used.

More specifically in the present embodiment, the driving unit 30 includes a tank 31 for storing hydraulic oil, an inlet/outlet pipe 32 for communicating the tank 31 with the hydraulic cylinder, a driving motor 33 for generating power to drive the hydraulic oil in the tank 31 to enter and exit the hydraulic cylinder, and a pressure testing device 34 disposed at a front end of the inlet/outlet pipe 32; for how the driving motor 33 drives the hydraulic oil in the oil tank 31 to enter and exit the hydraulic cylinder, reference may be made to a cylinder driving device in the prior art, which is not described herein again.

More specifically, in the present embodiment, the pressure testing device 34 is a pressure gauge for detecting the oil pressure in the inlet/outlet oil pipe 32.

(example 2)

Referring to fig. 3, a bilateral moment calibration testing machine equipped with the loading device of embodiment 1 includes a workbench 50 erected above a bidirectional multistage loading unit 20, a fixing device 60 installed on the workbench 50 and used for fixing a test product, guiding fixtures 70 installed on both sides of the fixing device 60 and used for assisting cranks to be installed on a central axis of the test product, a control switch and an indicator lamp 80 installed on the workbench 50, and a power supply 90 and a digital multimeter 100 which are mutually matched with a PC 40 to perform manual or automatic test on the test product; the loading arm 23 on the power execution unit 21 passes through the workbench 50 and is mounted on the cranks at the two sides of the test product.

The specific structures of the fixing device 60 and the guiding fixture 70 can refer to the existing structures, and are not described herein; the control switch and indicator lamp 80 includes a power switch, a start/stop switch, and a sub-operation button switch.

The test product is a bilateral torque sensor, but the device is not limited to the bilateral torque sensor and can also be used for testing other products with the same principle.

The utility model discloses a theory of operation does: during operation, the bilateral torque sensor is fixed through the fixing device 60, cranks are installed at two ends of a middle shaft of the bilateral torque sensor in an auxiliary mode through the guide clamp 70, the loading force arm 23 penetrates through the workbench 50 to be mounted on the loading cranks, the control switch and a power switch in the indicator lamp 80 are turned on, loading force is set through the control switch and a sub-operation button on the indicator lamp 80 or the loading force is set through the PC 40 end according to requirements for testing, and the control cabinet 00 controls the driving unit 30 to act after the loading force is set, so that the hydraulic cylinder outputs the designated loading force to meet the testing requirements.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A loading device has a fixed bracket (10); the method is characterized in that: the device is characterized by further comprising a bidirectional multistage loading unit (20) arranged on the fixed support (10), a driving unit (30) arranged on one side of the fixed support (10) and used for driving the bidirectional multistage loading unit (20) to act, a PC (40) used for acquiring pressure parameters of the bidirectional multistage loading unit (20) and issuing control commands according to the real-time pressure parameters, and a control cabinet (00) used for controlling the driving unit (30) to act according to commands issued by the PC (40); the bidirectional multistage loading unit (20) acts on the test product and generates an upward or downward force on the test product.

2. The loading device of claim 1, wherein: the bidirectional multistage loading unit (20) comprises a power execution unit (21) for generating upward or downward acting force, a load cell (22) arranged at the output tail end of the power execution unit (21) and a loading force arm (23) arranged at the upper end of the load cell (22); the loading force arm (23) is mounted at the stress end of the test product.

3. The loading device of claim 2, wherein: the power execution unit (21) is a hydraulic cylinder.

4. The loading device of claim 1, wherein: the driving unit (30) comprises an oil tank (31) for storing hydraulic oil, an oil inlet and outlet pipe (32) for communicating the oil tank (31) with the hydraulic cylinder, a driving motor (33) capable of generating power to drive the hydraulic oil in the oil tank (31) to enter and exit the hydraulic cylinder, and a pressure testing device (34) arranged at the front end of the oil inlet and outlet pipe (32).

5. The loading device of claim 4, wherein: the pressure testing device (34) is a pressure gauge for detecting oil pressure in the oil inlet and outlet pipe (32).

6. A bilateral moment calibration testing machine provided with a loading device as claimed in any one of claims 1 to 5, comprising a workbench (50) erected above a bidirectional multistage loading unit (20), a fixing device (60) arranged on the workbench (50) and used for fixing a test product, guide clamps (70) arranged on two sides of the fixing device (60) and used for assisting a crank to be mounted on a central shaft of the test product, a control switch and an indicator lamp (80) arranged on the workbench (50), and a power supply (90) and a digital multimeter (100) which are matched with a PC (40) to manually or automatically test the test product; the method is characterized in that: and a loading force arm (23) on the power execution unit (21) penetrates through the workbench (50) and is mounted on cranks at two sides of a test product.