CN2926572Y - High-low pressure actuator of concrete pump - Google Patents
High-low pressure actuator of concrete pump Download PDFInfo
- Publication number
- CN2926572Y CN2926572Y CN 200620022964 CN200620022964U CN2926572Y CN 2926572 Y CN2926572 Y CN 2926572Y CN 200620022964 CN200620022964 CN 200620022964 CN 200620022964 U CN200620022964 U CN 200620022964U CN 2926572 Y CN2926572 Y CN 2926572Y
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- CN
- China
- Prior art keywords
- reversing shaft
- hydraulic fluid
- fluid port
- oil
- concrete pump
- 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
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Abstract
The utility model discloses a concrete pump high-and-low pressure change-over device, which is composed of an oil mouth integration block, a reversing shaft, and an O-ring, a connecting bolt; wherein, the oil mouth integration block is provided with a central hole and six oil mouths that are connected with the central hole at the side face, while the reversing shaft is provided with three disconnected arc grooves in the circumference direction and is inserted into the central hole of the oil mouth integration block; the three arc grooves on the reversing shaft connect the six oil mouths pairwise at the side face of the oil mouth integration block, and the matching part of the reversing shaft and the oil mouth integration block is provided with an O-ring, and the reversing shaft is fixed on the oil mouth integration block through the connecting bolt to rotate the reversing shaft 60 degrees to realize the high-and-low pressure change-over of the working state of the concrete pump. The utility model is used to shift the high-and-low pressure working state of the concrete pump, and has the advantages of high working efficiency, environmental protection and easy processing and low cost.
Description
Affiliated technical field
The utility model relates to a kind of concrete pump high-low voltage switching device, specifically is used for concrete pump hydraulic system and realizes concrete pump high low pressure working state device for switching.
Background technique
In concrete pump hydraulic system, during master cylinder rod chamber oil inlet and oil return, can realize the big discharge capacity work of low pressure of concrete pump, during master cylinder rodless cavity oil inlet and oil return, can realize the high pressure float amount work of concrete pump, the use of high-low voltage switching device can realize the switching of two kinds of working staties of concrete pump, to satisfy the needs of different construction operating modes.
At present, domestic existing concrete pump high low pressure handoff technique scheme mainly contains three kinds, and the one, change the interface relationship of oil pipe, take more alias of oil pipe apart, it is big to lose more hydraulic oil and operation easier like this; Two be four hydraulic fluid port centralized arrangement of two oil-feed ports and two oil cylinders on an integrated package, realize that by a cover plate transposition high low pressure switches, and loses a small amount of hydraulic oil, its integrated package volume is bigger, the internal oil passages bending is the right angle, and liquid flowing resistance is big, and can not arrange oil pipe more smoothly; The third is to realize that by hydraulic control valve height pressure switches, its complex structure, and cost is higher.
Summary of the invention
In order to overcome above-mentioned prior art deficiency, the utility model provides a kind of easy operating, little, the no hydraulic oil loss of oil duct resistance, internal structure concrete pump high-low voltage switching device simple, cheap for manufacturing cost.
The purpose of this utility model is achieved by following technical proposals:
A kind of concrete pump high-low voltage switching device, by: hydraulic fluid port integrated package, reversing shaft, O-ring seals, connecting bolt are formed.The hydraulic fluid port integrated package is a hexagonal prism, and central axis is provided with center hole, and six sides respectively are provided with a hydraulic fluid port and are communicated with center hole.Reversing shaft is the cylindrical body that is provided with the convex edge, and the barrel portion two end part are provided with the O-ring seals groove respectively, and intermediate portion evenly is provided with 3 curve baths that do not communicate along circumference.O-ring seals is contained in the O-ring seals groove of reversing shaft, the barrel portion of reversing shaft is inserted in the center hole of hydraulic fluid port integrated package, 3 curve baths on the reversing shaft link to each other the hydraulic fluid port of six sides of hydraulic fluid port integrated package in center hole in twos, reversing shaft are fixed on the hydraulic fluid port integrated package by the convex edge on the reversing shaft with connecting bolt.Six hydraulic fluid ports of hydraulic fluid port integrated package side outwards connect the oil inlet and oil return interface tube and the master cylinder tubing interface of hydraulic circuit respectively.Unclamp connecting bolt,, tighten connecting bolt again and get final product 60 ° of once switchings that can realize the high low pressure working state of master cylinder of reversing shaft rotation.
The beneficial effects of the utility model are: the curve bath oil duct is less to the resistance that hydraulic oil flows on the reversing shaft, and then has improved the working efficiency of hydraulic system; The protection of O-ring seals has been arranged when carrying out the high low pressure handover operation, can not cause the hydraulic oil loss, Economy and good environmental protection; Simple in structure, compact, be easy to manufacturing, cost is low.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an assembling half sectional view of the present utility model.1. reversing shafts among the figure, 2. connecting bolt, 3. hydraulic fluid port integrated package, 4.O shape seal ring.
Fig. 2 is the I-I sectional view of Fig. 1.
Fig. 3 is the connection diagram of the utility model in concrete pump hydraulic system, 5. master cylinder YG1,6. master cylinder YG2 among the figure.Be illustrated as master cylinder operating on low voltage state.
Embodiment
In Fig. 1, reversing shaft (1) is the cylindrical body that is provided with the convex edge, and the barrel portion two end part are provided with the O-ring seals groove respectively; O-ring seals (4) is packed in the O-ring seals groove of reversing shaft (1); Hydraulic fluid port integrated package (3) is a hexagonal prism, and central axis is provided with center hole, and six sides respectively are provided with a hydraulic fluid port; The barrel portion of reversing shaft (1) is inserted in the center hole of hydraulic fluid port integrated package (3); Connecting bolt (2) is fixed on reversing shaft (1) on the hydraulic fluid port integrated package (3).
In Fig. 2,3 curve bath that does not communicate: A, B, C that reversing shaft (1) intermediate portion evenly is provided with along circumference; Curve bath A, the B of reversing shaft (1), C link to each other hydraulic fluid port P1, G1, P2, G2, G1 ', G2 ' the adjacent hydraulic fluid port in center hole of last six sides of hydraulic fluid port integrated package (3) in twos: curve bath A connection P1 is connected P2 and is connected G1 ' and G2 ' with G2, curve bath C with G1, curve bath B.
In Fig. 3, hydraulic fluid port P1, the P2 of hydraulic fluid port integrated package (3) is hydraulic system oil inlet and oil return mouth; The curve bath A of reversing shaft (1) connects the hydraulic fluid port P1 and the hydraulic fluid port G1 of hydraulic fluid port integrated package (3), and hydraulic fluid port G1 receives the rod chamber of master cylinder YG1 (5); Curve bath B connects the hydraulic fluid port P2 and the hydraulic fluid port G2 of oil-collecting hole integrated package (3), and hydraulic fluid port G2 receives the rod chamber of master cylinder YG2 (6); Curve bath C connects the hydraulic fluid port G1 ' and the hydraulic fluid port G2 ' of hydraulic fluid port integrated package (3), hydraulic fluid port G1 ' receives the rodless cavity of master cylinder YG1 (5), hydraulic fluid port G2 ' receives the rodless cavity of master cylinder YG2 (6), that is: the rod chamber oil inlet and oil return of two master cylinder YG1 (5), YG2 (6), rodless cavity polyphone.At this moment, hydraulic system is by hydraulic fluid port P1, the P2 oil inlet and oil return of hydraulic fluid port integrated package (3), and the master cylinder rod chamber is as actuator chamber, and master cylinder thrust is less, is called the operating on low voltage state.
The utility model high-low voltage switching device, unclamp connecting bolt (2), with 60 ° of reversing shaft (1) rotations, tighten connecting bolt (2) again, concrete pump can be changed into the high-pressure work state that two master cylinder rod chambers are contacted from the operating on low voltage state of two master cylinder rodless cavities polyphone shown in Figure 3, vice versa.
The utility model has the advantages that: high efficiency, environment friendly and pollution-free, easily processing, cost is low.
Claims (1)
1, a kind of concrete pump high-low voltage switching device, by: the hydraulic fluid port integrated package, reversing shaft, O-ring seals, connecting bolt constitutes, it is characterized in that: the hydraulic fluid port integrated package is provided with center hole, there are six hydraulic fluid ports that communicate with center hole the side, the reversing shaft circumferencial direction is provided with three curve baths that do not communicate, reversing shaft is inserted in the center hole of hydraulic fluid port integrated package, three curve baths on the reversing shaft link to each other six hydraulic fluid ports of hydraulic fluid port integrated package side in twos, the matching part of reversing shaft and hydraulic fluid port integrated package is provided with O-ring seals, and connecting bolt is fixed to reversing shaft on the hydraulic fluid port integrated package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620022964 CN2926572Y (en) | 2006-05-11 | 2006-05-11 | High-low pressure actuator of concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620022964 CN2926572Y (en) | 2006-05-11 | 2006-05-11 | High-low pressure actuator of concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2926572Y true CN2926572Y (en) | 2007-07-25 |
Family
ID=38280815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620022964 Expired - Lifetime CN2926572Y (en) | 2006-05-11 | 2006-05-11 | High-low pressure actuator of concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2926572Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507591A (en) * | 2015-12-08 | 2016-04-20 | 湖南三一路面机械有限公司 | Conveying pipeline switching device and material conveying system |
| WO2020056919A1 (en) * | 2018-09-20 | 2020-03-26 | 上海海压特智能科技有限公司 | Fluid pump system equipped with fluid control device |
-
2006
- 2006-05-11 CN CN 200620022964 patent/CN2926572Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507591A (en) * | 2015-12-08 | 2016-04-20 | 湖南三一路面机械有限公司 | Conveying pipeline switching device and material conveying system |
| WO2020056919A1 (en) * | 2018-09-20 | 2020-03-26 | 上海海压特智能科技有限公司 | Fluid pump system equipped with fluid control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070725 |
|
| EXPY | Termination of patent right or utility model |