CN203430755U - Concrete pump reversing system - Google Patents
Concrete pump reversing system Download PDFInfo
- Publication number
- CN203430755U CN203430755U CN201320517408.7U CN201320517408U CN203430755U CN 203430755 U CN203430755 U CN 203430755U CN 201320517408 U CN201320517408 U CN 201320517408U CN 203430755 U CN203430755 U CN 203430755U
- Authority
- CN
- China
- Prior art keywords
- concrete
- controller
- pumping
- velocity transducer
- reversing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model discloses a concrete pump reversing system. The concrete pump reversing system comprises a main pump (1), conveying cylinders (2), a detection ring (3), a concrete piston (4), a proximity switch (5), a water tank (7), pumping main oil cylinders (8), a reversing device (9), an electric-hydraulic proportional displacement valve (10), a controller and speed sensors (6), wherein the speed sensors are used for detection the speed of the concrete piston. The speed sensors include the first speed sensor and the second speed sensor, wherein the first speed sensor and the second speed sensor are arranged on the water tank and electrically connected with the controller, and the electric-hydraulic proportional displacement valve is arranged on the main pump and connected with the two pumping main oil cylinders respectively through the reversing device. The two pumping main oil cylinders are connected with the two conveying cylinders respectively through the water tank. According to the concrete pump reversing system, different delay reversing time durations can be set according to the speeds detected through the speed sensors, the situation that the pumping main oil cylinders keep down pressure or conduct reversing in advance is avoided, and therefore hydraulic system impact is avoided or reduced, and the pumping efficiency is improved.
Description
Technical field
The utility model relates to a kind of reversing mechanism, specifically a kind of concrete pump reversing mechanism.
Background technique
At present, concrete mixer is widely used in job site, and as shown in Figure 3, it promotes respectively two by two pumping master cylinders 8 and carries the to-and-fro motion of cylinder barrel 2 inner concrete pistons 4 to realize concrete pumping.A concrete piston 4 bounces back under the drive of pumping master cylinder 8, thereby sucks concrete in corresponding conveying cylinder barrel 2; Meanwhile, another carries the concrete piston 4 in cylinder barrel 2 to stretch out under the drive of pumping master cylinder 8, so that the concrete that it is sucked in advance in upper stroke release, thereby complete pumping; Two pumping master cylinders 8 drive respectively a concrete piston 4 carrying the interior reciprocal operation of cylinder barrel 2, alternately commutation, and concrete can be constantly pumped out.
In the time of near concrete piston 4 moves to the bottom of carrying cylinder barrel 2, approach switch 5 detects the detection ring 3 on the concrete piston 4 that moves to tank 7 places and sends a signal to controller, controller make main pump 1 discharge capacity substep or be directly reduced to former discharge capacity 20% or lower, and maintain a period of time, main pump 1 discharge capacity is under response time and effect of inertia, promote pumping master cylinder 8 and move to bottom, controller sends commutation signal, reversing arrangement 9 commutations, main pump 1 discharge capacity increases step by step and returns to former setting value, completes commutation process.
Wherein, controller is controlled electric-hydraulic proportion displacement valves 10, and main pump 1 discharge capacity to be reduced to send the time that commutation signal commutates to reversing arrangement 9 be changeless, do not consider the impact that when actual rate of pumping is different, exchange produces to process, be that concrete piston 4 issues a signal to its time that moves to stroke end because of the difference difference of engine speed and actual set displacement value from approach switch 5, so just there will be pumping master cylinder to build the pressure or commutation in advance, and then caused Impact in Hydraulic System or reduced pumping efficiency.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of concrete pump reversing mechanism, the speed that can detect according to velocity transducer is set the different late commutation time, avoid the situation that occurs that pumping master cylinder builds the pressure or commutate in advance, and then avoid appearance or reduce Impact in Hydraulic System, raising pumping efficiency.
To achieve these goals, a kind of concrete pump reversing mechanism of the utility model, comprise main pump, carry cylinder barrel, concrete piston, detection ring, approach switch, tank, pumping master cylinder, reversing arrangement, electric-hydraulic proportion displacement valves and controller, electric-hydraulic proportion displacement valves is arranged on main pump, and main pump is connected with two pumping master cylinders respectively by reversing arrangement; Two pumping master cylinders carry cylinder barrel to be connected with two respectively by tank, and each pumping master cylinder is provided with a concrete piston with corresponding conveying in cylinder barrel; Detection ring is two, is arranged on respectively on two concrete pistons; Approach switch is comprised of approach switch I and approach switch II, is arranged on respectively the both sides of tank, close conveying cylinder barrel place, and is electrically connected to controller; Controller is electrically connected to electric-hydraulic proportion displacement valves; Also comprise the velocity transducer for detection of concrete piston speed, described velocity transducer is comprised of velocity transducer I and velocity transducer II, is arranged on respectively on the both sides or two pumping master cylinders of tank, and is electrically connected to controller.
Velocity transducer is arranged on the both sides of tank, the below of approach switch.
Velocity transducer is laser velocimeter sensor.
Also comprise display device, described display device is connected with controller.
Compare with existing concrete pump reversing mechanism, pumping procedure of the present utility model is identical with the pumping procedure of prior art, just different in the control of commutation, the speed specifically detecting according to velocity transducer is set the different late commutation time, avoid pumping master cylinder to build the pressure or the generation of condition of commutation in advance, and then avoid occurring or reducing Impact in Hydraulic System, improved pumping efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is electric theory diagram of the present utility model;
Fig. 3 is existing concrete pump reversing mechanism.
In figure: 1, main pump, 2, carry cylinder barrel, 3, detection ring, 4, concrete piston, 5, approach switch, 6, velocity transducer, 7, tank, 8, pumping master cylinder, 9, reversing arrangement, 10, electric-hydraulic proportion displacement valves.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, this concrete pump reversing mechanism, comprise main pump 1, carry cylinder barrel 2, detection ring 3, concrete piston 4, approach switch 5, tank 7, pumping master cylinder 8, reversing arrangement 9, electric-hydraulic proportion displacement valves 10 and controller, electric-hydraulic proportion displacement valves 10 is arranged on main pump 1, and main pump is connected with two pumping master cylinders 8 respectively by reversing arrangement 9; Two pumping master cylinders 8 all carry cylinder barrel 2 to be connected with two respectively by tank 7, and each pumping master cylinder 8 and corresponding conveying between cylinder barrel 2 are provided with a concrete piston 4; Detection ring 3 is installed on concrete piston 4; Approach switch 5 comprises approach switch I and approach switch II, is arranged on respectively the both sides of tank 7, close two conveying cylinder barrel 2 places, and is electrically connected to controller; Controller is electrically connected to electric-hydraulic proportion displacement valves 10; Also comprise the velocity transducer 6 for detection of concrete piston 4 speed, described velocity transducer 6 comprises velocity transducer I and velocity transducer II, is arranged on respectively on the both sides or two pumping master cylinders 8 of tank 7, and is electrically connected to controller.
During work, the pumping procedure of this system is identical with the working procedure of prior art, is still by two pumping master cylinders 8, to promote respectively two and carry the to-and-fro motion of cylinder barrel 2 inner concrete pistons 4 to realize concrete pumping.Velocity transducer 6 constantly detects the speed of corresponding concrete piston 4, and velocity amplitude is sent to controller, in the time of near one of them concrete piston 4 moves to the bottom of carrying cylinder barrel 2, corresponding approach switch 5 detects the detection ring 3 on the concrete piston 4 that moves to tank 7 places and sends a signal to controller, controller by control electric-hydraulic proportion displacement valves 10 and make main pump 1 discharge capacity substep or be directly reduced to former discharge capacity 20% or lower, now the speed of concrete piston 4 can change, velocity transducer 6 sends rate signal value now to controller, after the processing that controller is correlated with, set the different late commutation time, when arriving retard time, controller sends commutation signal, control reversing arrangement 9 commutations, main pump 1 discharge capacity increases step by step and returns to former setting value, complete commutation process.The final speed detecting according to velocity transducer 6 is set the different late commutation time, avoids pumping master cylinder to build the pressure or the situation of commutation in advance occurs, and then avoids occurring or reducing the impact of hydraulic system, has improved pumping efficiency.
Preferably, described velocity transducer 6 is arranged on the both sides of tank 7, the below of approach switch 5, compare and be arranged on master cylinder 8, more can arrive behind tank 7 places by Measurement accuracy detection ring 3, speed after the unexpected reduction of speed of concrete piston 4, thereby guarantee that controller can set the time of late commutation accurately, avoid occurring or reducing the impact of hydraulic system, further improved pumping efficiency.
Preferably, described velocity transducer 6 can be laser velocimeter sensor, the highly versatile of laser velocimeter sensor, measuring accuracy is high, further guarantee to measure the accuracy of concrete piston 4 speed, thereby guarantee that controller can set the time of late commutation accurately, avoid occurring or reducing the impact of hydraulic system, further improved pumping efficiency.
As further improvement of the utility model, also can comprise display device, described display device is connected with controller, controller will receive rate signal value and show by display device, facilitate staff to understand in time the runnability of concrete piston 4, according to practical operation situation, make associative operation.
In addition, also can only according to the detection ring length of 3 process 4 times used of approach switch, set the different late commutation time, the situation generation of avoiding pumping master cylinder to build the pressure or commutating in advance, and then avoid occurring or reducing the impact of hydraulic system, improve pumping efficiency.
Claims (4)
1. a concrete pump reversing mechanism, comprise main pump (1), carry cylinder barrel (2), concrete piston (4), detection ring (3), approach switch (5), tank (7), pumping master cylinder (8), reversing arrangement (9), electric-hydraulic proportion displacement valves (10) and controller, it is upper that electric-hydraulic proportion displacement valves (10) is arranged on main pump (1), and main pump (1) is connected with two pumping master cylinders (8) respectively by reversing arrangement (9); Two pumping master cylinders (8) carry cylinder barrel (2) to be connected with two respectively by tank (7), and each pumping master cylinder (8) is provided with a concrete piston (4) with corresponding conveying in cylinder barrel (2); Detection ring (3) is two, is arranged on respectively on two concrete pistons (4); Approach switch (5) is comprised of approach switch I and approach switch II, and the both sides, the close conveying cylinder barrel (2) that are arranged on respectively tank (7) are located, and be electrically connected to controller; Controller is electrically connected to electric-hydraulic proportion displacement valves (10); It is characterized in that, also comprise the velocity transducer (6) for detection of concrete piston (4) speed, described velocity transducer (6) is comprised of velocity transducer I and velocity transducer II, the both sides or two the pumping master cylinders (8) that are arranged on respectively tank (7) are upper, and are electrically connected to controller.
2. a kind of concrete pump reversing mechanism according to claim 1, is characterized in that, described velocity transducer (6) is arranged on the both sides of tank (7), the below of approach switch (5).
3. a kind of concrete pump reversing mechanism according to claim 1 and 2, is characterized in that, described velocity transducer (6) is laser velocimeter sensor.
4. a kind of concrete pump reversing mechanism according to claim 1 and 2, is characterized in that, also comprise display device, described display device is connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517408.7U CN203430755U (en) | 2013-08-22 | 2013-08-22 | Concrete pump reversing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517408.7U CN203430755U (en) | 2013-08-22 | 2013-08-22 | Concrete pump reversing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430755U true CN203430755U (en) | 2014-02-12 |
Family
ID=50059799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320517408.7U Expired - Lifetime CN203430755U (en) | 2013-08-22 | 2013-08-22 | Concrete pump reversing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430755U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196692A (en) * | 2014-07-15 | 2014-12-10 | 三一汽车制造有限公司 | Pumping equipment, pumping system and reversing control device and method of pumping system |
| 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 |
| CN104847643A (en) * | 2014-12-22 | 2015-08-19 | 北汽福田汽车股份有限公司 | Concrete pumping system reversing control method and corresponding reversing control device |
| CN105134573A (en) * | 2015-08-12 | 2015-12-09 | 王林翔 | Plunger piston combined type digital variable pump |
| CN107218188A (en) * | 2017-06-30 | 2017-09-29 | 嘉善凝辉新型建材有限公司 | A kind of Concrete Double cylinder piston 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 |
| CN110687839A (en) * | 2019-09-19 | 2020-01-14 | 中铁工程装备集团隧道设备制造有限公司 | Wet spraying trolley communication interconnection control device and wet spraying trolley pumping system |
| CN112412726A (en) * | 2019-08-22 | 2021-02-26 | 河北雷萨重型工程机械有限责任公司 | Pumping system control method of vehicle, pumping system and vehicle |
| CN114687980A (en) * | 2020-12-29 | 2022-07-01 | 三一汽车制造有限公司 | Pumping equipment, pumping system and reversing parameter adjusting method thereof |
-
2013
- 2013-08-22 CN CN201320517408.7U patent/CN203430755U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104196692A (en) * | 2014-07-15 | 2014-12-10 | 三一汽车制造有限公司 | Pumping equipment, pumping system and reversing control device and method of pumping system |
| CN104196692B (en) * | 2014-07-15 | 2017-01-18 | 三一汽车制造有限公司 | Pumping equipment, pumping system and reversing control device and method of pumping system |
| CN104847643A (en) * | 2014-12-22 | 2015-08-19 | 北汽福田汽车股份有限公司 | Concrete pumping system reversing control method and corresponding reversing control device |
| CN104847643B (en) * | 2014-12-22 | 2016-08-17 | 北汽福田汽车股份有限公司 | Concrete pumping system reverse control method and corresponding control device for reversing |
| CN105134573A (en) * | 2015-08-12 | 2015-12-09 | 王林翔 | Plunger piston combined type digital variable pump |
| CN107218188A (en) * | 2017-06-30 | 2017-09-29 | 嘉善凝辉新型建材有限公司 | A kind of Concrete Double cylinder piston 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 |
| CN108626091B (en) * | 2018-06-14 | 2023-04-21 | 贵州大学 | Electromagnetic track driving piston type double-cylinder concrete pump |
| CN112412726A (en) * | 2019-08-22 | 2021-02-26 | 河北雷萨重型工程机械有限责任公司 | Pumping system control method of vehicle, pumping system and vehicle |
| CN112412726B (en) * | 2019-08-22 | 2022-11-25 | 河北雷萨重型工程机械有限责任公司 | Pumping system control method of vehicle, pumping system and vehicle |
| CN110687839A (en) * | 2019-09-19 | 2020-01-14 | 中铁工程装备集团隧道设备制造有限公司 | Wet spraying trolley communication interconnection control device and wet spraying trolley pumping system |
| CN114687980A (en) * | 2020-12-29 | 2022-07-01 | 三一汽车制造有限公司 | Pumping equipment, pumping system and reversing parameter adjusting method thereof |
| CN114687980B (en) * | 2020-12-29 | 2023-10-10 | 三一汽车制造有限公司 | Pumping equipment, pumping system and reversing parameter adjusting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203430755U (en) | Concrete pump reversing system | |
| WO2015081774A1 (en) | Oil cylinder control system and control method, and pumping machine | |
| CN102979693B (en) | A kind of device and controlling method thereof realizing the pumping of concrete continuous constant flow | |
| WO2013045598A3 (en) | Positive displacement pump and operating method thereof | |
| CN103938659B (en) | The measuring method of spud leg stroke, device and hydraulic bolt jacking system | |
| WO2013174120A1 (en) | Pumping mechanism and control method thereof, and concrete pumping equipment | |
| WO2014000389A1 (en) | Control method for pump stroke of twin-cylinder pump for viscous material and pumping device for same | |
| CN102338134A (en) | Concrete pumping equipment and reversing control method for pumping oil cylinder of same | |
| WO2013082976A1 (en) | Control apparatus, control method and concrete pump for viscous body pumping mechanism | |
| CN104295543B (en) | Hybrid power engineering machinery composite move control method | |
| CN103508386A (en) | Overhead working truck leveling system | |
| CN103114980B (en) | Pumping stroke control method of double-cylinder pump and pumping device | |
| WO2013174121A1 (en) | Hydraulic cylinder buffering control method, buffer type hydraulic cylinder control system and hydraulic equipment | |
| CN201474886U (en) | Concrete pumping device | |
| CN104196692B (en) | Pumping equipment, pumping system and reversing control device and method of pumping system | |
| CN103410695B (en) | Pumping mechanism and pump truck provided with same | |
| CN202756227U (en) | Double liquid synchronous grouting pump | |
| CN103470573B (en) | Pumping unit mends draining control apparatus, system, method and engineering machinery | |
| RU2018104087A (en) | Controller and method for controlling a sucker rod pump installation | |
| CN203670173U (en) | Novel reversing control system of concrete delivery pump | |
| CN105781951B (en) | Control method, device, system and the mortar pump of mortar pump | |
| CN203453020U (en) | Automatic oil discharge and supplement device of membrane pump | |
| CN207145373U (en) | A kind of oil cylinder decision-making system in place | |
| CN203720600U (en) | Oil pumping machine control system | |
| CN201650934U (en) | Hydraulic oil leakage detecting device for concrete pump hydraulic oil cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |