CN203614498U - Hydraulic loading system for hydraulic type force standard machine - Google Patents
Hydraulic loading system for hydraulic type force standard machine Download PDFInfo
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- CN203614498U CN203614498U CN201320832657.5U CN201320832657U CN203614498U CN 203614498 U CN203614498 U CN 203614498U CN 201320832657 U CN201320832657 U CN 201320832657U CN 203614498 U CN203614498 U CN 203614498U
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- supply system
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- 239000003921 oil Substances 0.000 claims abstract description 156
- 239000010727 cylinder oil Substances 0.000 claims abstract description 27
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 1
- 239000010720 hydraulic oil Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses a hydraulic loading system for a hydraulic type force standard machine. The hydraulic loading system comprises a clearance oil supplying system, an operating cylinder oil supplying system, a main oil cylinder and a control system. The clearance oil supplying system comprises a clearance oil drive device and a clearance oil overflow valve, wherein the clearance oil drive device is connected with the clearance oil overflow valve which is connected with the main oil cylinder. The operating cylinder oil supplying system comprises an operating oil drive device, an operating oil overflow valve, a force-measurement oil cylinder and a reversing valve, wherein the operating oil drive device is connected with the operating oil overflow valve, and the operating oil overflow valve is connected with the force-measurement oil cylinder and the main oil cylinder through the reversing valve. In this way, the hydraulic loading system can guarantee rotary lubrication of the main oil cylinder, fluctuation caused by rotation of clearance oil will not affect pressure in an operating cylinder, and therefore stability of oil pressure in the operating cylinder can be guaranteed. Furthermore, due to a unique pressure servo system, sealing and stability of pressure in the main oil cylinder can be guaranteed. Besides, the hydraulic loading system has the advantages of saving energy, being high in accuracy, high in efficiency and good in reliability, and the like.
Description
Technical field
The utility model belongs to mechanical and power equipment field, is specifically related to the hydraulic loading system that a kind of Hydraulic Standard Force Meter is used.
Background technique
Gap in hydraulic stroker cylinder body and piston need to supplement hydraulic oil and carry out righting oil cylinder, guarantees lubricatedly, reduces friction, Here it is we said " gap oil ".Hydraulic Standard Force Meter of the prior art is to separate a road binders by pressure difference valve from working connection to supply with master cylinder, uses as the gap oil of master cylinder.While use due to master cylinder, power is non-constant, and gap oil is unstable, and unsettled gap oil is due to from working connection top set out, can affect the pressure on working connection, causes pressure surge, affects the precision and stability of whole hydraulic loading system.
Model utility content
For the deficiency of above-mentioned hydraulic loading system, the technical problems to be solved in the utility model is to provide a kind of good stability, the hydraulic loading system that reliability is high, precision is high.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: a kind of Hydraulic Standard Force Meter hydraulic loading system, and described hydraulic loading system comprises gap oil oil supply system, operating cylinder oil supply system, master cylinder, control system; Described gap oil oil supply system comprises: gap oil drive unit, gap oil-overflow valve, and described gap oil drive unit connects described gap oil-overflow valve, and described gap oil-overflow valve connects described master cylinder; Described operating cylinder oil supply system comprises working oil drive unit, working oil relief valve, dynamometry oil cylinder, selector valve, described working oil drive unit connects described working oil relief valve, and described working oil relief valve connects described dynamometry oil cylinder and described master cylinder by described selector valve; Described gap oil oil supply system, operating cylinder oil supply system all connect described control system.
Preferably, described operating cylinder oil supply system comprises two selector valves, is respectively the first selector valve, the second selector valve, and what described the first selector valve, the second selector valve all adopted is three position four-way directional control valve; Described the first selector valve connects described working oil relief valve and described the second selector valve, and described the second selector valve connects described dynamometry oil cylinder and described master cylinder.In the utility model, operating cylinder oil supply system is utilized two groups of three position four-way directional control valves to control flexibly hydraulic oil and is transferred to master cylinder and/or dynamometry oil cylinder.
Preferably, described gap oil drive unit and described working oil drive unit include actuating motor; On the actuating motor of described gap oil drive unit and working oil drive unit, be equipped with high-pressure gear pump.
Preferably, described operating cylinder oil supply system comprises two groups of working oil drive units, and every group of working oil drive unit includes actuating motor and high-pressure gear pump; Wherein one group of working oil drive unit is provided with one-way valve.
Preferably, between described gap oil drive unit and described gap oil-overflow valve, be provided with oil purifier; Between described working oil drive unit and described working oil relief valve, be provided with oil purifier.Described oil purifier is all precise oil filters.
Preferably, in described gap oil oil supply system and operating cylinder oil supply system, be equipped with pressure transducer.In the oil supply system of the utility model Zhong Mei road, be all provided with pressure transducer, pressure while being used for detecting oil supply system work change and by data feedback to control system, control system can be controlled by the data of the pressure transducer feedback in the oil supply system of each road.
Preferably, the pressure transducer in described operating cylinder oil supply system is located between described the second selector valve and described master cylinder.
Preferably, the pressure transducer in the oil oil supply system of described gap is located between described gap oil-overflow valve and described master cylinder.
What preferably, described gap oil-overflow valve and described working oil relief valve all adopted is straight ejector half relief valve.
Preferably, on described dynamometry oil cylinder, there is non-contact sensor, be used for detecting the displacement of dynamometry oil cylinder.
The utility model has following advantage: 1, gap oil oil supply system and operating cylinder oil supply system are separate, guarantees the rotary lubrication of master cylinder, the unlikely pressure affecting in operating cylinder of fluctuation that gap oil produces because of rotation simultaneously; 2, every road oil supply system is provided with pressure transducer, and control system is controlled according to the data of pressure transducer feedback, thereby makes for accuracy high; 3, the non-contact sensor that dynamometry oil cylinder is provided with can directly be measured the displacement of dynamometry oil cylinder, easy operation, and degree of accuracy is high.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Please refer to accompanying drawing 1, the utility model embodiment:
A kind of Hydraulic Standard Force Meter hydraulic loading system, described hydraulic loading system comprises gap oil oil supply system 2, operating cylinder oil supply system 1, master cylinder 3, control system; Gap oil oil supply system 2 comprises: gap oil drive unit, gap oil-overflow valve 23, and described gap oil drive unit joint gap oil-overflow valve 23, gap oil-overflow valve 23 connects master cylinder 3; Operating cylinder oil supply system 1 comprises working oil drive unit, working oil relief valve 14, dynamometry oil cylinder 17, selector valve, described working oil drive unit connects working oil relief valve 14, and working oil relief valve 14 connects dynamometry oil cylinder 17 and master cylinder 3 by described selector valve; Described gap oil oil supply system, operating cylinder oil supply system all connect described control system.
In the present embodiment, operating cylinder oil supply system 1 comprises two selector valves, and what be respectively that the first selector valve 15, the second selector valve 16, the first selector valves 15, the second selector valve 16 all adopt is three position four-way directional control valve; The first selector valve 15 connects working oil relief valve 14 and the second selector valve 16, the second selector valves 16 connect dynamometry oil cylinder 17 and master cylinder 3.In the utility model, operating cylinder oil supply system 1 is utilized two groups of three position four-way directional control valves to control flexibly hydraulic oil and is transferred to master cylinder 3 and dynamometry oil cylinder 17.
In the present embodiment, described gap oil drive unit comprises actuating motor 20, and actuating motor 20 is provided with high-pressure gear pump 21.Described operating cylinder oil supply system comprises two groups of working oil drive units, and first group of working oil drive unit comprises actuating motor 10, and actuating motor 10 is provided with high-pressure gear pump 100; Second group of working oil drive unit comprises actuating motor 11, and actuating motor 11 is provided with high-pressure gear pump 110; Wherein second group of working oil drive unit is provided with one-way valve 12.
In the present embodiment, between described gap oil drive unit and gap oil-overflow valve 23, be provided with oil purifier 22; Between described working oil drive unit and working oil relief valve 14, be provided with oil purifier 13.Oil purifier 23 is all precise oil filters with oil purifier 13.
In the present embodiment, in gap oil oil supply system 2 and operating cylinder oil supply system 1, be equipped with pressure transducer.Pressure transducer 18 in operating cylinder oil supply system 1 is located between the second selector valve 16 and master cylinder 3.Pressure transducer 24 in the oil oil supply system 2 of gap is located between gap oil-overflow valve 23 and master cylinder 3.In the oil supply system of the present embodiment Zhong Mei road, be all provided with pressure transducer, the pressure while being used for detecting oil supply system work change and by data feedback to control system, control system can be controlled by the data of the pressure transducer feedback in the oil supply system of each road.
In the present embodiment, what gap oil-overflow valve 23 and working oil relief valve 14 all adopted is straight ejector half relief valve.
In the present embodiment, on dynamometry oil cylinder 17, there is non-contact sensor, be used for detecting the displacement of dynamometry oil cylinder.
When this Hydraulic Standard Force Meter is worked with hydraulic loading system, drive high-pressure gear pump respectively gap oil and operating cylinder to be loaded by actuating motor, guarantee the rotary lubrication of master cylinder, the unlikely pressure affecting in operating cylinder of fluctuation that gap oil produces because of rotation simultaneously, guarantees that the oil pressure in operating cylinder is stable.Simultaneously the oil pressure sensor in the oil supply system of every road can be in time by data feedback to control system, facilitate control system to carry out next step operation.And three position four-way directional control valve in operating cylinder oil supply system can be controlled flexibly one of them oil cylinder is loaded or loaded simultaneously, improve operational efficiency.
A kind of Hydraulic Standard Force Meter hydraulic loading system above the utility model embodiment being provided is described in detail; for one of ordinary skill in the art; according to the utility model embodiment's thought; all will change in specific embodiments and applications; in sum; this description should not be construed as restriction of the present utility model, and all any changes of making according to the utility model design philosophy are all within protection domain of the present utility model.
Claims (10)
1. a Hydraulic Standard Force Meter hydraulic loading system, described hydraulic loading system comprises gap oil oil supply system, operating cylinder oil supply system, master cylinder, control system; Described gap oil oil supply system comprises: gap oil drive unit, gap oil-overflow valve, and described gap oil drive unit connects described gap oil-overflow valve, and described gap oil-overflow valve connects described master cylinder; Described operating cylinder oil supply system comprises working oil drive unit, working oil relief valve, dynamometry oil cylinder, selector valve, described working oil drive unit connects described working oil relief valve, and described working oil relief valve connects described dynamometry oil cylinder and described master cylinder by described selector valve; Described gap oil oil supply system, operating cylinder oil supply system all connect described control system.
2. Hydraulic Standard Force Meter hydraulic loading system according to claim 1, it is characterized in that, described operating cylinder oil supply system comprises two selector valves, is respectively the first selector valve, the second selector valve, and what described the first selector valve, the second selector valve all adopted is three position four-way directional control valve; Described the first selector valve connects described working oil relief valve and described the second selector valve, and described the second selector valve connects described dynamometry oil cylinder and described master cylinder.
3. Hydraulic Standard Force Meter hydraulic loading system according to claim 2, is characterized in that, described gap oil drive unit and described working oil drive unit include actuating motor; On the actuating motor of described gap oil drive unit and working oil drive unit, be equipped with high-pressure gear pump.
4. Hydraulic Standard Force Meter hydraulic loading system according to claim 3, is characterized in that, described operating cylinder oil supply system comprises two groups of working oil drive units, and every group of working oil drive unit includes actuating motor and high-pressure gear pump; Wherein one group of working oil drive unit is provided with one-way valve.
5. Hydraulic Standard Force Meter hydraulic loading system according to claim 4, is characterized in that, between described gap oil drive unit and described gap oil-overflow valve, is provided with oil purifier; Between described working oil drive unit and described working oil relief valve, be provided with oil purifier.
6. Hydraulic Standard Force Meter hydraulic loading system according to claim 5, is characterized in that, in described gap oil oil supply system and operating cylinder oil supply system, is equipped with pressure transducer.
7. Hydraulic Standard Force Meter hydraulic loading system according to claim 6, is characterized in that, the pressure transducer in described operating cylinder oil supply system is located between described the second selector valve and described master cylinder.
8. Hydraulic Standard Force Meter hydraulic loading system according to claim 7, is characterized in that, the pressure transducer in the oil oil supply system of described gap is located between described gap oil-overflow valve and described master cylinder.
9. according to arbitrary described Hydraulic Standard Force Meter hydraulic loading system in claim 1-8, it is characterized in that, what described gap oil-overflow valve and described working oil relief valve all adopted is straight ejector half relief valve.
10. Hydraulic Standard Force Meter hydraulic loading system according to claim 9, is characterized in that, on described dynamometry oil cylinder, has non-contact sensor, is used for detecting the displacement of dynamometry oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832657.5U CN203614498U (en) | 2013-12-17 | 2013-12-17 | Hydraulic loading system for hydraulic type force standard machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832657.5U CN203614498U (en) | 2013-12-17 | 2013-12-17 | Hydraulic loading system for hydraulic type force standard machine |
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| Publication Number | Publication Date |
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| CN203614498U true CN203614498U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320832657.5U Expired - Lifetime CN203614498U (en) | 2013-12-17 | 2013-12-17 | Hydraulic loading system for hydraulic type force standard machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090142A (en) * | 2015-06-30 | 2015-11-25 | 北京航空航天大学 | Hydraulic loading system |
-
2013
- 2013-12-17 CN CN201320832657.5U patent/CN203614498U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090142A (en) * | 2015-06-30 | 2015-11-25 | 北京航空航天大学 | Hydraulic loading system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
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| CX01 | Expiry of patent term |