CN203978789U - A kind of reversing arrangement and pump truck based on pressure signal - Google Patents
A kind of reversing arrangement and pump truck based on pressure signal Download PDFInfo
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- CN203978789U CN203978789U CN201420363288.4U CN201420363288U CN203978789U CN 203978789 U CN203978789 U CN 203978789U CN 201420363288 U CN201420363288 U CN 201420363288U CN 203978789 U CN203978789 U CN 203978789U
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- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 abstract 1
- 238000013459 approach Methods 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a kind of reversing arrangement and pump truck based on pressure signal, the pumping mechanism of described pump truck comprises the described reversing arrangement based on pressure signal.The described reversing arrangement based on pressure signal comprises: two-way oil pump; Controller, controller connects described two-way oil pump, controls the fuel feeding direction of described two-way oil pump; The first oil cylinder, the first oil cylinder connects the first oil inlet and outlet of two-way oil pump; The second oil cylinder, the second oil cylinder connects the second oil inlet and outlet of two-way oil pump; Pressure transducer, pressure transducer embeds the first cylinder wall and the second cylinder wall, detects the pressure of the first oil cylinder and the second oil cylinder; Pressure transducer connects controller, and when the force value that pressure transducer detects surpasses setting threshold, controller sends the signal that pressure oil commutates between the first oil cylinder and the second oil cylinder.By the reversing arrangement based on pressure signal of the present utility model, can improve the working efficiency of pump truck, and reduce the cost of production of pump truck.
Description
Technical field
The utility model relates to the technical field of pumping mechanism, particularly relates to a kind of reversing arrangement based on pressure signal.
Background technique
The pumping mechanism of pump truck is realized the continuous conveying of pump truck material by changing the flow direction of oil cylinder internal pressure oil.In the prior art, conventionally with the high pressure approach switch that embeds the first oil cylinder and the second oil cylinder, change the first oil cylinder and the second in-oil cylinder pressure oil flow direction.When the high pressure of embedding the first oil cylinder approaches the in-oil cylinder piston of inductive switching to the first, high pressure approach switch sends commutation signal to control system, and described control system realizes the first in-oil cylinder pressure oil commutation to the second oil cylinder by two-way oil pump; When high pressure approaches the in-oil cylinder piston of inductive switching to the second, high pressure approach switch sends commutation signal to control system, and described control system realizes the second in-oil cylinder pressure oil commutation to the first oil cylinder by two-way oil pump.Due to the easily damage and expensive under the severe working environment of high pressure, vibrations and profit erosion of high pressure approach switch, cause the working efficiency reduction of pump truck and the increase of cost of production.
Therefore wishing a kind of reversing arrangement based on pressure signal overcomes or at least alleviates above-mentioned defect.
Model utility content
The purpose of this utility model is to provide a kind of reversing arrangement based on pressure signal to overcome the above-mentioned problems in the prior art.
For achieving the above object, the utility model provides a kind of reversing arrangement based on pressure signal to comprise:
Two-way oil pump;
Controller, described controller connects described two-way oil pump, for controlling oil-feed oil direction and the fuel-displaced direction of described two-way oil pump;
The first oil cylinder, described the first oil cylinder connects the first oil inlet and outlet of described two-way oil pump;
The second oil cylinder, described the second oil cylinder connects the second oil inlet and outlet of described two-way oil pump;
Pressure transducer, described pressure transducer embeds described the first cylinder wall and described the second cylinder wall, for detection of the pressure of described the first oil cylinder and described the second oil cylinder;
Wherein, described pressure transducer connects described controller, and when the force value that described pressure transducer detects surpasses setting threshold, described controller sends the signal that pressure oil commutates between described the first oil cylinder and described the second oil cylinder.
The utility model also provides a kind of reversing arrangement based on pressure signal to comprise:
Unidirectional oil pump;
Selector valve, the first valve port of selector valve connects the oil outlet of described unidirectional oil pump, and the 3rd valve port of selector valve connects the filler opening of described unidirectional oil pump;
Controller, described controller connects described selector valve, for the direction of pilot pressure oil;
The first oil cylinder, described the first oil cylinder connects the second valve port of selector valve;
The second oil cylinder, described the second oil cylinder connects the 4th valve port of selector valve;
Pressure transducer, described pressure transducer embeds described the first cylinder wall and described the second cylinder wall, for detection of the pressure of described the first oil cylinder and described the second oil cylinder;
Wherein, described pressure transducer connects described controller, and when the force value that described pressure transducer detects surpasses setting threshold, described controller sends the signal that pressure oil commutates between described the first oil cylinder and described the second oil cylinder.
Preferably, described pressure transducer further comprises: the first pressure transducer and the second pressure transducer, described the first pressure transducer embeds described the first cylinder wall setting, described the second pressure transducer embeds described the second cylinder wall setting, and near described the first oil cylinder and described the second oil cylinder, the end away from two-way oil pump arranges respectively for described the first pressure transducer and described the second pressure transducer.
Preferably, described pressure transducer further comprises: the first pressure transducer and the second pressure transducer, described the first pressure transducer embeds described the first cylinder wall setting, described the second pressure transducer embeds described the second cylinder wall setting, and near described the first oil cylinder and described the second oil cylinder, the end away from unidirectional oil pump arranges respectively for described the first pressure transducer and described the second pressure transducer.
Preferably, described the first pressure transducer and described the second pressure transducer is axially symmetrical arranged.
Preferably, the quantity of described the first pressure transducer and described the second pressure transducer is respectively one.
Preferably, described selector valve is two-position four-way valve.
Preferably, the current value of described pressure transducer is 4-20ma.
The utility model also provides a kind of pump truck, and the pumping mechanism of described pump truck comprises the reversing arrangement based on pressure signal as above.
The utility model provides a kind of reversing arrangement based on pressure signal, and the reversing arrangement based on pressure signal providing by the utility model can effectively improve the working efficiency of pump truck, and reduces the cost of production of pump truck.
Accompanying drawing explanation
Fig. 1 is according to the explanatory view of the utility model one embodiment's the reversing arrangement based on pressure signal.
Fig. 2 is according to the explanatory view of the utility model one embodiment's the reversing arrangement based on pressure signal.
Reference character:
| 1 | Unidirectional oil pump | 9 | The second pressure transducer |
| 2 | The first oil cylinder | 10 | The first valve port |
| 3 | The second oil cylinder | 11 | The second valve port |
| 4 | First piston | 12 | The 3rd valve port |
| 5 | The second piston | 13 | The 4th valve port |
| 6 | Two-position four-way valve | 14 | Two-way oil pump |
| 7 | Controller | 15 | The first oil inlet and outlet |
| 8 | The first pressure transducer | 16 | The second oil inlet and outlet |
Embodiment
For object, technological scheme and advantage that the utility model is implemented are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, rather than whole embodiments.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as the restriction to the utility model protection domain.
According to a kind of reversing arrangement based on pressure signal of the utility model one wide in range embodiment, comprise: two-way oil pump; Controller, described controller connects described two-way oil pump, for controlling oil-feed oil direction and the fuel-displaced direction of described two-way oil pump; The first oil cylinder, described the first oil cylinder connects the first oil inlet and outlet of described two-way oil pump; The second oil cylinder, described the second oil cylinder connects the second oil inlet and outlet of described two-way oil pump; Pressure transducer, described pressure transducer embeds described the first cylinder wall and described the second cylinder wall, for detection of the pressure of described the first oil cylinder and described the second oil cylinder; Wherein, described pressure transducer connects described controller, and when the force value that described pressure transducer detects surpasses setting threshold, described controller sends the signal that pressure oil commutates between described the first oil cylinder and described the second oil cylinder.
According to a kind of reversing arrangement based on pressure signal of another wide in range embodiment of the present utility model, comprise: unidirectional oil pump; Selector valve, the first valve port of selector valve connects the oil outlet of described unidirectional oil pump, and the 3rd valve port of selector valve connects the filler opening of described unidirectional oil pump; Controller, described controller connects described selector valve, for the direction of pilot pressure oil; The first oil cylinder, described the first oil cylinder connects the second valve port of selector valve; The second oil cylinder, described the second oil cylinder connects the 4th valve port of selector valve; Pressure transducer, described pressure transducer embeds described the first cylinder wall and described the second cylinder wall, for detection of the pressure of described the first oil cylinder and described the second oil cylinder; Wherein, described pressure transducer connects described controller, and when the force value that described pressure transducer detects surpasses setting threshold, described controller sends the signal that pressure oil commutates between described the first oil cylinder and described the second oil cylinder.
The utility model provides a kind of reversing arrangement based on pressure signal, and the reversing arrangement based on pressure signal providing by the utility model can effectively improve the working efficiency of pump truck, and reduces the cost of production of pump truck.
In the embodiment shown in fig. 1, the reversing arrangement based on pressure signal comprises: two-way oil pump 14, controller 7, the first oil cylinder 2, the second oil cylinder 3, first piston 4, the second piston 5, the first pressure transducer 8 and the second pressure transducer 9.
In the embodiment shown in fig. 1, controller 7 connects two-way oil pump 14, and the first oil inlet and outlet 15 of two-way oil pump connects the first oil cylinder 2, in the first oil cylinder 2 inside, first piston 4 is set, and on the first oil cylinder 2, embed the first pressure transducer 8, the first pressure transducers 8 and connect controller 7; The second oil inlet and outlet 16 of two-way oil pump connects the second oil cylinder 3, in the second oil cylinder 3 inside, the second piston 5 is set, and on the second oil cylinder 3, embeds the second pressure transducer 9, the second pressure transducers 9 connection controllers 7.
Near the first oil cylinder 2 and the second oil cylinder 3, the end away from two-way oil pump 14 arranges respectively for the first pressure transducer 8 and the second pressure transducer 9.
The pressure that the first pressure transducer 8 detects in the first oil cylinder 2, and the force value of the first oil cylinder 2 is passed to controller 7, when the force value of the first oil cylinder 2 is less than controller 7 setting threshold, the pressure oil in the second oil cylinder 3 flows into the first oil cylinder 2 by the second oil inlet and outlet 16 of two-way oil pump and the first oil inlet and outlet 15 of two-way oil pump successively; When the force value of the first oil cylinder 2 equals controller 7 setting threshold, the pressure oil in the second oil cylinder 3 flows into the first oil cylinder 2 by the second oil inlet and outlet 16 of two-way oil pump and the first oil inlet and outlet 15 of two-way oil pump successively; When the force value of the first oil cylinder 2 is greater than controller 7 setting threshold, controller 7 generates commutation command, and commutation command is passed to two-way oil pump 14, pressure oil in the first oil cylinder 2 flows into the second oil cylinder 3 by the first oil inlet and outlet 15 of two-way oil pump and the second oil inlet and outlet 16 of two-way oil pump successively, the second pressure transducer 9 starts to detect the pressure in the second oil cylinder 3, and the force value of the second oil cylinder 3 is passed to controller 7.
The pressure that the second pressure transducer 9 detects in the second oil cylinder 3, and the force value of the second oil cylinder 3 is passed to controller 7, when the force value of the second oil cylinder 3 is less than controller 7 setting threshold, the pressure oil in the first oil cylinder 2 flows into the second oil cylinder 3 by the first oil inlet and outlet 15 of two-way oil pump and the second oil inlet and outlet 16 of two-way oil pump successively; When the force value of the second oil cylinder 3 equals controller 7 setting threshold, the pressure oil in the first oil cylinder 2 flows into the second oil cylinder 3 by the first oil inlet and outlet 15 of two-way oil pump and the second oil inlet and outlet 16 of two-way oil pump successively; When the force value of the second oil cylinder 3 is greater than controller 7 setting threshold, controller 7 generates commutation command, and commutation command is passed to two-way oil pump 14, pressure oil in the second oil cylinder 3 flows into the first oil cylinder 2 by the second oil inlet and outlet 16 of two-way oil pump and the first oil inlet and outlet 15 of two-way oil pump successively, the first pressure transducer 8 starts to detect the pressure in the first oil cylinder 2, and the force value of the first oil cylinder 2 is passed to controller 7.
In embodiment illustrated in fig. 2, the reversing arrangement based on pressure signal comprises: unidirectional oil pump 1, two-position four-way valve 6, controller 7, the first oil cylinder 2, the second oil cylinder 3, first piston 4, the second piston 5, the first pressure transducer 8 and the second pressure transducer 9.
In embodiment illustrated in fig. 2, controller 7 connects two-position four-way valve 6, the oil outlet of unidirectional oil pump 1 connects the first valve port 10 of two-position four-way valve 6, the second valve port 11 of two-position four-way valve 6 connects the first oil cylinder 2, in the first oil cylinder 2 inside, first piston 4 is set, and on the first oil cylinder 2, embed the first pressure transducer 8, the first pressure transducers 8 and connect controller 7; The filler opening of unidirectional oil pump 1 connects the 3rd valve port 12 of two-position four-way valve 6, the 4th valve port 13 of two-position four-way valve 6 connects the second oil cylinder 3, in the second oil cylinder 3 inside, the second piston 5 is set, and on the second oil cylinder 3, embeds the second pressure transducer 9, the second pressure transducers 9 connection controllers 7.
Near the first oil cylinder 2 and the second oil cylinder 3, the end away from unidirectional oil pump 1 arranges respectively for the first pressure transducer 8 and the second pressure transducer 9.
The pressure that the first pressure transducer 8 detects in the first oil cylinder 2, and the force value of the first oil cylinder 2 is passed to controller 7, when the force value of the first oil cylinder 2 is less than controller 7 setting threshold, pressure oil in the second oil cylinder 3 successively filler opening of the 4th valve port 13, the 3rd valve port 12 and the unidirectional oil pump 1 by two-position four-way valve 6 enters unidirectional oil pump 1, the pressure oil in unidirectional oil pump 1 more successively by the oil outlet of unidirectional oil pump 1, the first valve port 10 of two-position four-way valve 6 and the second valve port 11 flow into the first oil cylinders 2, when the force value of the first oil cylinder 2 equals controller 7 setting threshold, pressure oil in the second oil cylinder 3 successively filler opening of the 4th valve port 13, the 3rd valve port 12 and the unidirectional oil pump 1 by two-position four-way valve 6 enters unidirectional oil pump 1, the pressure oil in unidirectional oil pump 1 more successively by the oil outlet of unidirectional oil pump 1, the first valve port 10 of two-position four-way valve 6 and the second valve port 11 flow into the first oil cylinders 2, when the force value of the first oil cylinder 2 is greater than controller 7 setting threshold, controller 7 generates commutation command, and commutation command is passed to two-position four-way valve 6, pressure oil in the first oil cylinder 2 is successively by the second valve port 11 of two-position four-way valve 6, the filler opening of the 3rd valve port 12 and unidirectional oil pump 1 enters unidirectional oil pump 1, pressure oil in unidirectional oil pump 1 is more successively by the oil outlet of unidirectional oil pump 1, the first valve port 10 of two-position four-way valve 6 and the 4th valve port 13 flow into the second oil cylinder 3, the second pressure transducer 9 starts to detect the pressure in the second oil cylinder 3, and the force value of the second oil cylinder 3 is passed to controller 7.
The pressure that the second pressure transducer 9 detects in the second oil cylinder 3, and the force value of the second oil cylinder 3 is passed to controller 7, when the force value of the second oil cylinder 3 is less than controller 7 setting threshold, pressure oil in the first oil cylinder 2 successively filler opening of the second valve port 11, the 3rd valve port 12 and the unidirectional oil pump 1 by two-position four-way valve 6 enters unidirectional oil pump 1, the pressure oil in unidirectional oil pump 1 more successively by the oil outlet of unidirectional oil pump 1, the first valve port 10 of two-position four-way valve 6 and the 4th valve port 13 flow into the second oil cylinders 3, when the force value of the second oil cylinder 3 equals controller 7 setting threshold, pressure oil in the first oil cylinder 2 successively filler opening of the second valve port 11, the 3rd valve port 12 and the unidirectional oil pump 1 by two-position four-way valve 6 enters unidirectional oil pump 1, the pressure oil in unidirectional oil pump 1 more successively by the oil outlet of unidirectional oil pump 1, the first valve port 10 of two-position four-way valve 6 and the 4th valve port 13 flow into the second oil cylinders 3, when the force value of the second oil cylinder 3 is greater than controller 7 setting threshold, controller 7 generates commutation command, and commutation command is passed to two-position four-way valve 6, pressure oil in the second oil cylinder 3 is successively by the 4th valve port 13 of two-position four-way valve 6, the filler opening of the 3rd valve port 12 and unidirectional oil pump 1 enters unidirectional oil pump 1, pressure oil in unidirectional oil pump 1 is more successively by the oil outlet of unidirectional oil pump 1, the first valve port 10 of two-position four-way valve 6 and the second valve port 11 flow into the first oil cylinder 2, the first pressure transducer 8 starts to detect the pressure in the first oil cylinder 2, and the force value of the first oil cylinder 2 is passed to controller 7.
In embodiment illustrated in fig. 2, selector valve is two-position four-way valve 6, but is understandable that, selector valve is not limited to diagramatic way, and for example, in another not shown embodiment, selector valve is three-position four-way valve.
In Fig. 1-2 illustrated embodiment, the first pressure transducer 8 and the second pressure transducer 9 are axially symmetrical arranged.
In the embodiment shown in fig. 1, the quantity of the first pressure transducer 8 and the second pressure transducer 9 is respectively one, and the first pressure transducer 8 and the second pressure transducer 9 near the first oil cylinder 2 and the second oil cylinder 3, the end away from two-way oil pump 14 arranges respectively.But be understandable that, the quantity of the first pressure transducer 8 and the second pressure transducer 9 is not limited to diagramatic way, for example, in another not shown embodiment, the quantity of the first pressure transducer and described the second pressure transducer is respectively two.
In embodiment illustrated in fig. 2, the quantity of the first pressure transducer 8 and the second pressure transducer 9 is respectively one, and the first pressure transducer 8 and the second pressure transducer 9 near described the first oil cylinder and the second oil cylinder 3, the end away from unidirectional oil pump 1 arranges respectively.
The current value of the first pressure transducer 8 and the second pressure transducer 9 is 4-20ma.
In one embodiment, the pumping mechanism by the above-mentioned reversing arrangement based on pressure signal for concrete mixer, effectively improves the working efficiency of pump truck, and reduces the cost of production of pump truck.
The reversing arrangement based on pressure signal providing by the utility model can effectively improve the working efficiency of pump truck, and reduces the cost of production of pump truck.
Finally it is to be noted: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit.Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technological scheme that still can record aforementioned each embodiment is modified, or part technical characteristics is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (9)
1. the reversing arrangement based on pressure signal, is characterized in that, comprising:
Two-way oil pump;
Controller, described controller connects described two-way oil pump, for controlling oil-feed oil direction and the fuel-displaced direction of described two-way oil pump;
The first oil cylinder, described the first oil cylinder connects the first oil inlet and outlet of described two-way oil pump;
The second oil cylinder, described the second oil cylinder connects the second oil inlet and outlet of described two-way oil pump;
Pressure transducer, described pressure transducer embeds described the first cylinder wall and described the second cylinder wall, for detection of the pressure of described the first oil cylinder and described the second oil cylinder;
Wherein, described pressure transducer connects described controller, and when the force value that described pressure transducer detects surpasses setting threshold, described controller sends the signal that pressure oil commutates between described the first oil cylinder and described the second oil cylinder.
2. the reversing arrangement based on pressure signal, is characterized in that, comprising:
Unidirectional oil pump;
Selector valve, the first valve port of selector valve connects the oil outlet of described unidirectional oil pump, and the 3rd valve port of selector valve connects the filler opening of described unidirectional oil pump;
Controller, described controller connects described selector valve, for the direction of pilot pressure oil;
The first oil cylinder, described the first oil cylinder connects the second valve port of selector valve;
The second oil cylinder, described the second oil cylinder connects the 4th valve port of selector valve;
Pressure transducer, described pressure transducer embeds described the first cylinder wall and described the second cylinder wall, for detection of the pressure of described the first oil cylinder and described the second oil cylinder;
Wherein, described pressure transducer connects described controller, and when the force value that described pressure transducer detects surpasses setting threshold, described controller sends the signal that pressure oil commutates between described the first oil cylinder and described the second oil cylinder.
3. the reversing arrangement based on pressure signal as claimed in claim 1, it is characterized in that, described pressure transducer further comprises: the first pressure transducer and the second pressure transducer, described the first pressure transducer embeds described the first cylinder wall setting, described the second pressure transducer embeds described the second cylinder wall setting, and near described the first oil cylinder and described the second oil cylinder, the end away from two-way oil pump arranges respectively for described the first pressure transducer and described the second pressure transducer.
4. the reversing arrangement based on pressure signal as claimed in claim 2, it is characterized in that, described pressure transducer further comprises: the first pressure transducer and the second pressure transducer, described the first pressure transducer embeds described the first cylinder wall setting, described the second pressure transducer embeds described the second cylinder wall setting, and near described the first oil cylinder and described the second oil cylinder, the end away from unidirectional oil pump arranges respectively for described the first pressure transducer and described the second pressure transducer.
5. the reversing arrangement based on pressure signal as described in any one in claim 3 or 4, is characterized in that, being axially symmetrical arranged of described the first pressure transducer and described the second pressure transducer.
6. the reversing arrangement based on pressure signal as claimed in claim 5, is characterized in that, the quantity of described the first pressure transducer and described the second pressure transducer is respectively one.
7. the reversing arrangement based on pressure signal as claimed in claim 2, is characterized in that, described selector valve is two-position four-way valve.
8. the reversing arrangement based on pressure signal as described in any one in claim 1 or 2, is characterized in that, the current value of described pressure transducer is 4-20ma.
9. a pump truck, is characterized in that, the pumping mechanism of described pump truck comprises the reversing arrangement based on pressure signal as described in any one in claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363288.4U CN203978789U (en) | 2014-07-02 | 2014-07-02 | A kind of reversing arrangement and pump truck based on pressure signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363288.4U CN203978789U (en) | 2014-07-02 | 2014-07-02 | A kind of reversing arrangement and pump truck based on pressure signal |
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| Publication Number | Publication Date |
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| CN203978789U true CN203978789U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420363288.4U Expired - Lifetime CN203978789U (en) | 2014-07-02 | 2014-07-02 | A kind of reversing arrangement and pump truck based on pressure signal |
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| CN (1) | CN203978789U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715622A (en) * | 2016-04-25 | 2016-06-29 | 北汽福田汽车股份有限公司 | Engineering machinery and pumping system thereof |
| CN105775773A (en) * | 2016-04-15 | 2016-07-20 | 徐州徐工施维英机械有限公司 | Carriage operation control method and control device |
| CN107339284A (en) * | 2017-08-21 | 2017-11-10 | 福建龙马环卫装备股份有限公司 | A kind of oil cylinder decision-making system and method in place |
| CN108026908A (en) * | 2015-12-01 | 2018-05-11 | 株式会社岛津制作所 | Liquid feeding device |
| CN108291562A (en) * | 2015-12-03 | 2018-07-17 | 索特精密机械有限公司 | Monitoring device for tool turret |
| CN109611313A (en) * | 2018-10-10 | 2019-04-12 | 广东工业大学 | A kind of magnetic drive reciprocating type refrigeration compressor |
-
2014
- 2014-07-02 CN CN201420363288.4U patent/CN203978789U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108026908A (en) * | 2015-12-01 | 2018-05-11 | 株式会社岛津制作所 | Liquid feeding device |
| CN108291562A (en) * | 2015-12-03 | 2018-07-17 | 索特精密机械有限公司 | Monitoring device for tool turret |
| CN108291562B (en) * | 2015-12-03 | 2021-03-30 | 索特精密机械有限公司 | Monitoring device for a tool turret |
| CN105775773A (en) * | 2016-04-15 | 2016-07-20 | 徐州徐工施维英机械有限公司 | Carriage operation control method and control device |
| CN105715622A (en) * | 2016-04-25 | 2016-06-29 | 北汽福田汽车股份有限公司 | Engineering machinery and pumping system thereof |
| CN105715622B (en) * | 2016-04-25 | 2018-11-20 | 北汽福田汽车股份有限公司 | Engineering machinery and its pumping system |
| CN107339284A (en) * | 2017-08-21 | 2017-11-10 | 福建龙马环卫装备股份有限公司 | A kind of oil cylinder decision-making system and method in place |
| CN109611313A (en) * | 2018-10-10 | 2019-04-12 | 广东工业大学 | A kind of magnetic drive reciprocating type refrigeration compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200927 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co.,Ltd. Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |
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| CX01 | Expiry of patent term |