CN201568245U - Concrete pumping unit and concrete pumping device - Google Patents
Concrete pumping unit and concrete pumping device Download PDFInfo
- Publication number
- CN201568245U CN201568245U CN2009201530902U CN200920153090U CN201568245U CN 201568245 U CN201568245 U CN 201568245U CN 2009201530902 U CN2009201530902 U CN 2009201530902U CN 200920153090 U CN200920153090 U CN 200920153090U CN 201568245 U CN201568245 U CN 201568245U
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- concrete pumping
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- 238000005086 pumping Methods 0.000 title claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000009183 running Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a concrete pumping unit. The concrete pumping unit comprises a pair of concrete cylinders, a pair of hydraulic cylinders, a distributing valve, travel switches, a variable displacement pump and a control unit, wherein the distributing valve is used for alternately conducting the pair of concrete cylinders; the travel switches are arranged on the travel paths of piston rods of the hydraulic cylinders; the variable displacement pump is provided with a servo mechanism for adjusting displacement; the control unit can control the reversing of the variable displacement pump according to detection signals of the travel switch, and control the servo mechanism to increase the displacement of the variable displacement pump when the piston rods extend the hydraulic cylinders. The utility model also discloses a concrete pumping device with the concrete pumping unit. In the utility model, the displacement of the hydraulic pumps can be increased within the maximal displacement range due to arrangement of the control unit, and the initial pumping speed of the pump cylinders is further increased, thereby eliminating the phenomenon of intermittent flow when the concrete is pumped from a hopper, and highly facilitating continuous and uniform flow of the concrete in the delivery pipe in pumping materials.
Description
Technical field
The utility model relates to a kind of concrete pumping unit and concrete pumping equipment.
Background technique
Concrete pumping equipment is widely used in construction industry as transit mixer of dragging pump, Vehicle loaded pump, concrete mixer, having the cloth jib etc.
The schematic work structuring of existing concrete pumping equipment as shown in Figure 1, concrete pumping equipment comprises that mainly concrete pumping unit 1, hopper 2 and one section are the delivery pipe (in figure do not draw) of transmission and concrete transmission to the job site.
When one of them concrete cylinder sucked concrete from hopper, S valve 7 coupled together another concrete cylinder and delivery pipe.S valve 7 is driven by another hydraulic jack to alternating movement, and the interoperation by S valve 7 and concrete cylinder 3 makes concrete that flow (be pumped or be inhaled into) take place.In actual pumping process, concrete mobile in delivery pipe is continuous and irregular.
This existing pumping installations is when suction in hopper, and interrupted flow phenomenon appears in the concrete flow that can cause sucking, thereby makes the concrete that is pumped into subsequently in the delivery pipe that discontinuous flowing be taken place, and causes the reduction of pump-conveying property.
The model utility content
The purpose of this utility model is to provide a kind of moving concrete pumping equipment of concrete broken afterflow of avoiding.
For this reason, the utility model provides a kind of concrete pumping unit, and it comprises: a pair of concrete cylinder; A pair of hydraulic jack; The distributing valve that is used for a pair of concrete cylinder of alternate conduction; Position limit switch is arranged on the travel paths of piston rod of hydraulic jack; Wherein, the servomechanism of oil hydraulic pump is connected with this servomechanism of manipulation increases the output flow of oil hydraulic pump when piston rod stretches out hydraulic jack control unit signal, and this control unit is connected with the position limit switch signal.
Preferably, above-mentioned distributing valve is the S valve.Can certainly be the apportion design of other type, for example C shape valve, disc valve or oblique installing type valve plate valve.
Preferably, above-mentioned position limit switch is optoelectronic switch or magnetic switch.
Preferably, above-mentioned control unit is programmable controller or microprocessor.
Preferably, concrete pumping of the present utility model unit also comprises: control panel, be connected with the control unit signal, and be used to set various parameters.
In addition, the utility model also provides a kind of concrete pumping equipment, comprises hopper, one section the delivery pipe of transmission and concrete transmission to the job site, and concrete pumping described above unit.
In concrete pumping of the present utility model unit, by increasing the output flow of oil hydraulic pump, can in the initial length of the piston stroke of hydraulic jack, increase the movement velocity of piston, can increase the initial movement speed of concrete cylinder inner concrete piston like this, can eliminate the interrupted flow phenomenon that is taken place when from hopper, sucking concrete like this, when suction, be very beneficial for concrete continuous and in delivery pipe, flow uniformly.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.Below with reference to figure, other purpose, feature and effect of the present utility model is described in further detail.
Description of drawings
Constitute this specification a part, be used for further understanding accompanying drawing of the present utility model and show preferred embodiment of the present utility model, and be used for illustrating principle of the present utility model with specification.Among the figure:
Fig. 1 shows the structural representation according to concrete pump of the present utility model;
Fig. 2 shows the block diagram according to concrete pump of the present utility model; And
Fig. 3 shows the regulating method according to concrete pump of the present utility model;
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in detail.
Fig. 2 shows the structural representation according to concrete pumping of the present utility model.As shown in the figure, the alternatively swinging of S valve 7 is realized by two hydraulic jacks 8, is used for one of them concrete cylinder 3 of conducting alternately and distributes concrete.The hydraulic circuit of two hydraulic jacks 8 is provided with solenoid directional control valve 10, accumulator 9 and constant pressure pump.
The commutation of solenoid directional control valve 10 makes 8 alternating movements of two hydraulic jacks.Accumulator 9 provides a pressure pulse to make S valve 7 reach enough acceleration and speed to guarantee pump action and the harmony of delivery pipe and enough flows.
The pressure oil of accumulator 9 is provided by constant pressure pump, and the upper pressure limit of accumulator 9 is determined by constant pressure pump.When accumulator 9 pressure were charged to desired value (constant pressure pump pressure cut off value), the output flow of constant pressure pump reduced automatically, and until being zero, the pressure size in the accumulator equates with the pressure cut off value of constant pressure pump at this moment.
On oil hydraulic pump 5, be provided with speed probe 14, to detect the rotating speed of oil hydraulic pump 5.Be provided with position limit switch 13 on the travel paths of the piston rod of oil cylinder 4, position limit switch 13 is preferably the device of magnetic switch or sensing piston rod displacements such as optoelectronic switch or inductance approach switch or capacitive approach switch.Oil hydraulic pump 5 is preferably variable displacement pump, and this variable displacement pump has servomechanism 5a with the controlled variable pump delivery.Control unit 11 can be data processing equipments such as microprocessor or programmable controller.
Fig. 3 shows the regulating method according to concrete pump of the present utility model.As shown in the figure, control unit 11 receives the signal that puts in place (step S11) of the piston rod of position limit switch 13 detected oil cylinders 4; The numerical value (step S12) of the pump cycles that control unit 11 read operation persons set by control panel 12, control unit 11 detect the rotating speed (step S13) of oil hydraulic pumps 5 by sensor 14; Control unit 11 calculates the running time (step S14) of oil hydraulic pump 5 according to the maximum pump discharge of oil hydraulic pump, according to handling solenoid directional control valve 10 commutations (step S15) this running time, and the commutation that comes operating hydraulically operated pump 5 according to the location of maximum pump discharge, thereby realize the coordination of pumping cylinder 3 and S valve 7.
By in the maximum pump discharge scope, increasing the discharge capacity of oil hydraulic pump 5, can in the initial length of the piston stroke of oil cylinder 4, increase the movement velocity of piston, can increase the initial pumping velocity of pumping cylinder 3 like this.The inventor finds, can eliminate the interrupted flow phenomenon that is taken place when sucking concrete from hopper 2 like this, when suction, is very beneficial for concrete continuous and flows in delivery pipe uniformly.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. concrete pumping unit comprises:
A pair of concrete cylinder (3), a pair of hydraulic jack (4) and the distributing valve (7) that is used for a pair of concrete cylinder of alternate conduction (3) and concrete delivery pipe is characterized in that, also comprise:
Position limit switch (13) detects the piston displacement of described hydraulic jack (4);
Oil hydraulic pump (5) has the servomechanism (5a) of regulating output flow,
Wherein, the servomechanism (5a) of described oil hydraulic pump (5) is connected with the described servomechanism of manipulation (5a) increases the output flow of described oil hydraulic pump (5) when described piston rod stretches out hydraulic jack (4) described control unit (11) signal, and described control unit (11) is connected with described position limit switch (13) signal.
2. concrete pumping according to claim 1 unit is characterized in that,
Described oil hydraulic pump (5) is a variable displacement pump.
3. concrete pumping according to claim 1 unit is characterized in that,
Described distributing valve (7) is the S valve.
4. concrete pumping according to claim 1 unit is characterized in that,
Described position limit switch (13) is an optoelectronic switch.
5. concrete pumping according to claim 1 unit is characterized in that
Described position limit switch (13) is a magnetic switch.
6. concrete pumping according to claim 1 unit is characterized in that,
Described control unit (11) is a programmable controller.
7. concrete pumping according to claim 1 unit is characterized in that,
Described control unit (11) is a microprocessor.
8. concrete pumping according to claim 1 unit is characterized in that, also comprises:
Control panel (12) is connected with described control unit (11) signal.
9. concrete pumping equipment comprises that hopper (2), one section the delivery pipe of transmission and concrete transmission to the job site, is characterized in that, also comprises according to each described concrete pumping unit in the claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201530902U CN201568245U (en) | 2009-05-31 | 2009-05-31 | Concrete pumping unit and concrete pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201530902U CN201568245U (en) | 2009-05-31 | 2009-05-31 | Concrete pumping unit and concrete pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568245U true CN201568245U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201530902U Expired - Fee Related CN201568245U (en) | 2009-05-31 | 2009-05-31 | Concrete pumping unit and concrete pumping device |
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| CN (1) | CN201568245U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094779A (en) * | 2010-12-28 | 2011-06-15 | 长沙中联重工科技发展股份有限公司 | Concrete pump and method for adjusting driving pressure value for swinging actuator in concrete pump |
| CN102410184A (en) * | 2011-09-09 | 2012-04-11 | 中联重科股份有限公司 | Pumping reversing control method, device and system for pumping device |
| WO2013033915A1 (en) * | 2011-09-09 | 2013-03-14 | 长沙中联重工科技发展股份有限公司 | Method, apparatus, and system for controlling pumping direction-switching for use in pumping apparatus |
| CN102979308A (en) * | 2012-09-28 | 2013-03-20 | 北汽福田汽车股份有限公司 | Concrete pumping device and vehicle with same |
| WO2014000389A1 (en) * | 2012-06-27 | 2014-01-03 | 中联重科股份有限公司 | Control method for pump stroke of twin-cylinder pump for viscous material and pumping device for same |
| WO2015081774A1 (en) * | 2013-12-04 | 2015-06-11 | 三一汽车制造有限公司 | Oil cylinder control system and control method, and pumping machine |
| CN106640826A (en) * | 2016-11-11 | 2017-05-10 | 三汽车制造有限公司 | Integrated hydraulic valve group as well as hydraulic driving system provided with valve group and concrete pump |
| CN108626091A (en) * | 2018-06-14 | 2018-10-09 | 贵州大学 | A kind of electromagnetic path driving piston type twin-tub concrete pump |
| CN109339820A (en) * | 2018-09-19 | 2019-02-15 | 中国铁建重工集团有限公司 | A kind of device and method for the amount control of concrete spraying side |
| CN113006490A (en) * | 2021-03-25 | 2021-06-22 | 徐州徐工施维英机械有限公司 | Concrete pumping equipment and control method thereof |
| CN113187712A (en) * | 2021-04-28 | 2021-07-30 | 湘潭大学 | Piston movement speed matching method for improving material suction performance of concrete pumping |
-
2009
- 2009-05-31 CN CN2009201530902U patent/CN201568245U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094779A (en) * | 2010-12-28 | 2011-06-15 | 长沙中联重工科技发展股份有限公司 | Concrete pump and method for adjusting driving pressure value for swinging actuator in concrete pump |
| CN102094779B (en) * | 2010-12-28 | 2012-01-04 | 长沙中联重工科技发展股份有限公司 | Concrete pump and method for adjusting driving pressure value for swinging actuator in concrete pump |
| WO2012088827A1 (en) * | 2010-12-28 | 2012-07-05 | 长沙中联重工科技发展股份有限公司 | Concrete pump and method for adjusting value of drive pressure to swinging actuator thereof |
| RU2557815C2 (en) * | 2010-12-28 | 2015-07-27 | Зумлайон Хэви Индастри Сайенс Энд Текнолоджи Ко., Лтд. | Concrete pump and method of control over concrete pump swinging drive |
| CN102410184A (en) * | 2011-09-09 | 2012-04-11 | 中联重科股份有限公司 | Pumping reversing control method, device and system for pumping device |
| CN102410184B (en) * | 2011-09-09 | 2012-12-26 | 中联重科股份有限公司 | Pumping reversing control method, device and system for pumping device |
| WO2013033915A1 (en) * | 2011-09-09 | 2013-03-14 | 长沙中联重工科技发展股份有限公司 | Method, apparatus, and system for controlling pumping direction-switching for use in pumping apparatus |
| WO2014000389A1 (en) * | 2012-06-27 | 2014-01-03 | 中联重科股份有限公司 | Control method for pump stroke of twin-cylinder pump for viscous material and pumping device for same |
| CN102979308B (en) * | 2012-09-28 | 2013-11-20 | 北汽福田汽车股份有限公司 | Concrete pumping device and vehicle with same |
| CN102979308A (en) * | 2012-09-28 | 2013-03-20 | 北汽福田汽车股份有限公司 | Concrete pumping device and vehicle with same |
| WO2015081774A1 (en) * | 2013-12-04 | 2015-06-11 | 三一汽车制造有限公司 | Oil cylinder control system and control method, and pumping machine |
| CN106640826A (en) * | 2016-11-11 | 2017-05-10 | 三汽车制造有限公司 | Integrated hydraulic valve group as well as hydraulic driving system provided with valve group and concrete pump |
| CN106640826B (en) * | 2016-11-11 | 2018-10-02 | 三一汽车制造有限公司 | Integrated hydraulic valve group and the fluid power system and concrete pump that the valve group is set |
| CN108626091A (en) * | 2018-06-14 | 2018-10-09 | 贵州大学 | A kind of electromagnetic path driving piston type twin-tub concrete pump |
| CN108626091B (en) * | 2018-06-14 | 2023-04-21 | 贵州大学 | Electromagnetic track driving piston type double-cylinder concrete pump |
| CN109339820A (en) * | 2018-09-19 | 2019-02-15 | 中国铁建重工集团有限公司 | A kind of device and method for the amount control of concrete spraying side |
| CN113006490A (en) * | 2021-03-25 | 2021-06-22 | 徐州徐工施维英机械有限公司 | Concrete pumping equipment and control method thereof |
| CN113187712A (en) * | 2021-04-28 | 2021-07-30 | 湘潭大学 | Piston movement speed matching method for improving material suction performance of concrete pumping |
| CN113187712B (en) * | 2021-04-28 | 2023-09-01 | 湘潭大学 | Piston movement speed matching method for improving suction performance of concrete pumping |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: Yuelu District City, Hunan province 410205 Changsha Lugu Road No. 677 ZOOMLION Lugu Industrial Park Patentee before: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20170531 |
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| CF01 | Termination of patent right due to non-payment of annual fee |