CN208330898U - Hydraulic load dynamometer machine - Google Patents
Hydraulic load dynamometer machine Download PDFInfo
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- CN208330898U CN208330898U CN201820775753.3U CN201820775753U CN208330898U CN 208330898 U CN208330898 U CN 208330898U CN 201820775753 U CN201820775753 U CN 201820775753U CN 208330898 U CN208330898 U CN 208330898U
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Abstract
The utility model relates to dynamometer machine fields, more particularly to hydraulic load dynamometer machine, its torque sensor input terminal is connect with equipment under test, the input terminal of output end and quantitative hydraulic pump connects and is equipped with speed probe in junction, quantitative hydraulic pump output terminal and automatically controlled charge valve, automatically controlled flow valve connects and is equipped with pressure sensor in junction, its throttling spool mouth of automatically controlled charge valve is connect with radiator body, automatically controlled flow valve is connect with radiator motor high pressure oil port, the hydraulic oil of radiator motor low pressure hydraulic fluid port discharge, which is transported in radiator body, to radiate, speed probe is installed at radiator motor drive shaft, temperature sensor is installed on radiator body, controller input port and speed probe, pressure sensor and temperature sensor connection, output port is connect with automatically controlled charge valve and automatically controlled flow valve.Apparatus structure provided by the utility model is simple and convenient to operate, loads that stabilization, high degree of automation, work efficiency is high, strong environmental adaptability.
Description
Technical field
The utility model relates to dynamometer machine field more particularly to hydraulic load dynamometer machines.
Background technique
The more field in measuring device power and torque of hydraulic load dynamometer machine is applied, and present is hydraulic
Dynamometer machine has solved the problems, such as self cooling of hydraulic oil and measurement accuracy problem, but does not have automatic control load power also
With the ability of control hydraulic oil thermal equilibrium temperature.There is also the degree of automation of load and hydraulic system heat are flat in use
The problem of weighing apparatus control aspect and bearing power control aspect, is urgently to be resolved.
The shortcomings that existing hydraulic load dynamometer machine:
1. the accuracy that loads power and in terms of depend entirely on operator dynamometer machine be familiar with
Degree and skilled operation degree, leading to different operators, difference is very in terms of load power accuracy, stability and efficiency
Greatly.
2. the thermal equilibrium temperature of existing hydraulic load measurement of power machine hydraulic system leans on the initial designs of equipment to determine completely, ginseng
Number solidifies, and heat equilibrium of hydraulic system temperature difference is larger at a temperature of varying environment, cannot make hydraulic system work best always
The range of temperature.
Several operators are needed when 3. measuring using existing dynamometer machine while operating and recording, and cause labor cost
It is high.
Utility model content
The technical problem to be solved by the utility model is to provide structures to be simple and convenient to operate, load is stablized, automation journey
Degree is high, work efficiency is high, the hydraulic load dynamometer machine of strong environmental adaptability.
The utility model is to be achieved by the following technical programs:
Hydraulic load dynamometer machine comprising torque sensor, quantitative hydraulic pump, automatically controlled charge valve, automatically controlled flow valve, heat dissipation
Device and controller, the radiator include radiator body, radiator motor and fan, the torque sensor input terminal and quilt
The input terminal of measurement equipment connection, torque sensor output end and quantitative hydraulic pump connects and is equipped with revolution speed sensing in junction
Device, the quantitative hydraulic pump are connected with hydraulic tank by inlet line, and quantitative hydraulic pump output terminal is distinguished by pressure duct
It is connect with automatically controlled charge valve, automatically controlled flow valve and pressure sensor, its spool section of the automatically controlled charge valve is installed in junction
Head piece is connect by low pressure line with radiator body, and the automatically controlled flow valve passes through pressure duct and radiator motor high pressure oil
Mouth connection drives radiator fan rotation, and the hydraulic oil of radiator motor low pressure hydraulic fluid port discharge is transported to heat dissipation by low pressure line
It radiates in device main body, speed probe is installed at radiator motor drive shaft, temperature sensor is installed on radiator body,
Its input port of the controller passes through cable respectively and connect with speed probe, pressure sensor and temperature sensor, output
Port passes through cable respectively and connect with automatically controlled charge valve and automatically controlled flow valve.
Further, quantitative hydraulic pump output is equipped with the overflow valve in parallel with automatically controlled charge valve and automatically controlled flow valve.
The beneficial effects of the utility model
Hydraulic load dynamometer machine provided by the utility model, has the advantages that
1. using module design, layout is not limited by space and place, and control system can be arranged in control room, be not required to
It wants operator directly to operate on dynamometer machine, improves the working environment of operator.
2. energy real-time loading, power is electrodeless continuously adjustable, and can also add automatically according to pre-set loading curve
It carries.
3. having hydraulic fluid temperature detects and controls function, it can guarantee that hydraulic system always works in best oil temperature range.
4. solving operator operating position when operating other hydraulic load dynamometer machines is confined to lacking near dynamometer machine
Point, simultaneously because high degree of automation can carry out the works such as load and the reference record of dynamometer machine simultaneously as long as an operator
Make, reduces labor cost.
5. simultaneously be also equipped with it is easy to operate, load stablize, high degree of automation, work efficiency is high, strong environmental adaptability
The advantages that.
6. overflow valve can play the role of protecting hydraulic system, prevent system overpressure from working, damages equipment.
Detailed description of the invention
Fig. 1 is Tthe utility model system structural schematic diagram；
1. torque sensor in figure, 2. speed probes, 3. quantitative hydraulic pumps, 4. pressure sensors, 5. controllers, 6. electricity
Control charge valve, 7. automatically controlled flow valves, 8. radiator motors, 9. fans, 10. radiator bodies, 11. temperature sensors, 12. overflows
Valve, 13. hydraulic oil containers.
Specific embodiment
Hydraulic load dynamometer machine comprising torque sensor 1, quantitative hydraulic pump 3, automatically controlled charge valve 6, automatically controlled flow valve 7,
Radiator and controller 5, the radiator include radiator body 10, radiator motor 8 and fan 9, the torque sensor
Input terminal is connect with equipment under test, and the input terminal of torque sensor output end and quantitative hydraulic pump is connected and is equipped in junction
Speed probe 2, the quantitative hydraulic pump are connect by inlet line with hydraulic oil container 13, and quantitative hydraulic pump output terminal passes through height
Pressure pipe road connect with automatically controlled charge valve 6, automatically controlled flow valve 7 respectively and is equipped with pressure sensor 4 in junction, it is described automatically controlled plus
It carries its throttling spool mouth of valve to connect by low pressure line with radiator body 10, the automatically controlled flow valve is by pressure duct and dissipates
Hot 8 high pressure oil port of device motor connection drives radiator fan 14 to rotate, and the hydraulic oil of radiator motor low pressure hydraulic fluid port discharge passes through
Low pressure line, which is transported in radiator body, to radiate, and speed probe 2, radiator body are equipped at radiator motor drive shaft
On temperature sensor 11 is installed, its input port of the controller passes through cable and speed probe, pressure sensor respectively
And temperature sensor connection, output port pass through cable respectively and connect with automatically controlled charge valve and automatically controlled flow valve.
Further, quantitative hydraulic pump output is equipped with the overflow valve in parallel with automatically controlled charge valve and automatically controlled flow valve
12。
When hydraulic load dynamometer machine works, quantitative hydraulic pump converts the mechanical energy of equipment under test from hydraulic oil container oil suction
For hydraulic energy, the throttle orifice in automatically controlled flow valve body is hydraulic by high temperature at thermal energy, then by low pressure line by hydraulic energy transfer
Oil is transported to radiator body and radiates.Hydraulic oil enters radiator motor drive radiator fan after passing through automatically controlled flow valve
Rotation, so that the heat on radiator body surface is dispersed, and the equipment under test torque signal, the revolving speed that are generated by torque sensor pass
The hydraulic oil pressure force signal of quantitative hydraulic pump tach signal, pressure sensor generation that sensor generates is transferred to controller respectively,
The control electric current that controller adjusts automatically controlled flow valve in real time carrys out adjusting spool aperture, so that proof load power keeps stablizing, together
When can also be loaded according to preset power or torque curve.Meanwhile the hydraulic fluid temperature signal that temperature sensor generates
And the radiator motor rotary speed signal that speed probe generates is transferred to controller, controller adjusts the control of automatically controlled flow valve in real time
Electric current processed carrys out adjusting spool aperture, so that adjusting radiator motor rotary speed guarantees that heat equilibrium of hydraulic system temperature is stablized.Work as system
When pressure anomaly is increased to overflow valve preset protection pressure, hydraulic oil is transported to heat dissipation via low pressure line by overflow valve
Device, to return to hydraulic oil container.
Since control system uses module design, layout is not limited by space and place, and control system can be arranged in control
System is indoor, does not need operator and directly operates on dynamometer machine, improves the working environment of operator, solves and operates it
Operator operating position is confined to the disadvantage near dynamometer machine when his hydraulic load dynamometer machine, simultaneously because high degree of automation
It can carry out the work such as load and the reference record of dynamometer machine simultaneously as long as an operator, reduce labor cost, and
And it is easy to operate, load is stablized, and high degree of automation, work efficiency is high, strong environmental adaptability.
Also, torque sensor input terminal is connect with equipment under test, torque sensor output end and quantitative hydraulic pump it is defeated
Enter end connection and speed probe is installed in junction, quantitative hydraulic pump is connected with hydraulic tank by inlet line, quantitative
Hydraulic pump output terminal is connect respectively with the automatically controlled flow valve of automatically controlled charge valve by pressure duct and is equipped with pressure in junction and passed
Sensor, its throttling spool mouth of automatically controlled charge valve are connect by low pressure line with radiator body, in this way by the control of controller,
It can not only guarantee real-time loading, power is electrodeless continuously adjustable, and can also add automatically according to pre-set loading curve
It carries.
Radiator fan is driven to turn since automatically controlled flow valve is connect by pressure duct with radiator motor high pressure oil port again
Dynamic, the hydraulic oil of radiator motor low pressure hydraulic fluid port discharge is transported in radiator body by low pressure line to radiate, and radiates
Speed probe is installed at device motor drive shaft, temperature sensor is installed on radiator body, in this way by the control of controller,
So that dynamometer machine is had hydraulic fluid temperature and detect and control function, can guarantee that hydraulic system always works in best oil temperature range.
In addition, quantitative hydraulic pump output is equipped with the overflow valve in parallel with automatically controlled charge valve and automatically controlled flow valve, when
When system pressure is increased to the preset protection pressure of overflow valve extremely, hydraulic oil is transported to by overflow valve via low pressure line scattered
Hot device can play the role of protecting hydraulic system, prevent system overpressure from working, damage equipment to return to hydraulic oil container.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (2)
1. hydraulic load dynamometer machine, which is characterized in that including torque sensor, quantitative hydraulic pump, automatically controlled charge valve, automatically controlled flow
Valve, radiator and controller, the radiator include radiator body, radiator motor and fan, and the torque sensor is defeated
Enter end to connect with equipment under test, the input terminal of torque sensor output end and quantitative hydraulic pump, which is connected and is equipped in junction, to be turned
Fast sensor, the quantitative hydraulic pump are connected with hydraulic tank by inlet line, and quantitative hydraulic pump output terminal passes through high-voltage tube
Road connect with automatically controlled charge valve, automatically controlled flow valve respectively and is equipped with pressure sensor in junction, the automatically controlled charge valve its
Throttling spool mouth is connect by low pressure line with radiator body, and the automatically controlled flow valve passes through pressure duct and radiator motor
High pressure oil port connection drives radiator fan rotation, and the hydraulic oil of radiator motor low pressure hydraulic fluid port discharge is conveyed by low pressure line
It radiates in radiator body, speed probe is installed at radiator motor drive shaft, temperature is installed on radiator body
Sensor, its input port of the controller passes through cable respectively and speed probe, pressure sensor and temperature sensor connect
It connects, output port passes through cable respectively and connect with automatically controlled charge valve and automatically controlled flow valve.
2. hydraulic load dynamometer machine according to claim 1, which is characterized in that quantitative hydraulic pump output be equipped with
Automatically controlled charge valve and the overflow valve of automatically controlled flow valve parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820775753.3U CN208330898U (en) | 2018-05-23 | 2018-05-23 | Hydraulic load dynamometer machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820775753.3U CN208330898U (en) | 2018-05-23 | 2018-05-23 | Hydraulic load dynamometer machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330898U true CN208330898U (en) | 2019-01-04 |
Family
ID=64774946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820775753.3U Active CN208330898U (en) | 2018-05-23 | 2018-05-23 | Hydraulic load dynamometer machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330898U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907077A (en) * | 2019-11-11 | 2020-03-24 | 西北机电工程研究所 | Small motor dynamometer |
| CN113405804A (en) * | 2021-06-17 | 2021-09-17 | 一汽解放汽车有限公司 | Movable engine starting and loading test bench |
-
2018
- 2018-05-23 CN CN201820775753.3U patent/CN208330898U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907077A (en) * | 2019-11-11 | 2020-03-24 | 西北机电工程研究所 | Small motor dynamometer |
| CN110907077B (en) * | 2019-11-11 | 2021-07-09 | 西北机电工程研究所 | Small motor dynamometer |
| CN113405804A (en) * | 2021-06-17 | 2021-09-17 | 一汽解放汽车有限公司 | Movable engine starting and loading test bench |
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