CN212803793U - Manual synchronous valve group - Google Patents
Manual synchronous valve group Download PDFInfo
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- CN212803793U CN212803793U CN202021439609.6U CN202021439609U CN212803793U CN 212803793 U CN212803793 U CN 212803793U CN 202021439609 U CN202021439609 U CN 202021439609U CN 212803793 U CN212803793 U CN 212803793U
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Abstract
The application discloses manual synchronous valves relates to synchronous valves field, and it includes tribit four-way reversing valve and hydraulic pressure lock, tribit four-way reversing valve includes oil inlet, oil return opening and two working fluid ports, oil inlet department is connected with the oil feed way, oil return opening department is connected with the oil return way, two the working fluid port respectively with two import intercommunications of hydraulic pressure lock, two exits of hydraulic pressure lock are connected with first working oil circuit and second working oil circuit respectively, be connected with first synchronizing valve on the first working oil circuit, two exits of first synchronizing valve are connected with two first execution oil circuits respectively. This application has the effect that improves two hydro-cylinders motion synchronicity.
Description
Technical Field
The application relates to the field of synchronous valve banks, in particular to a manual synchronous valve bank.
Background
The hydraulic system functions to increase the force by changing the pressure. A complete hydraulic system consists of five parts, namely a power element, an actuator, a control element, an auxiliary element (attachment) and hydraulic oil. Hydraulic systems can be divided into two categories: hydraulic transmission systems and hydraulic control systems. Hydraulic drive systems have as a primary function the transmission of power and motion.
The existing chinese patent with publication number CN106089830A discloses a synchronous operating mechanism of a hydraulic cylinder, which includes a first oil pipe, where the first oil pipe is divided into two branches to be connected to a rodless cavity of a first driving oil cylinder and a rodless cavity of a second driving oil cylinder, respectively, a rod cavity of the first driving oil cylinder is connected to a rodless cavity of a first driven oil cylinder, a rod cavity of the second driving oil cylinder is connected to a rodless cavity of a second driven oil cylinder, and the rod cavity of the first driven oil cylinder and the rod cavity of the second driven oil cylinder are both connected to the second oil pipe; the sectional area of the hollow part of the rod cavity of the first driving oil cylinder is equal to that of the rodless cavity of the first driven oil cylinder; the sectional area of the hollow part of the rod cavity of the second driving oil cylinder is equal to the sectional area of the hollow part of the rodless cavity of the second driven oil cylinder.
By adopting the scheme, when the mechanism is used, hydraulic oil flows into the first driving oil cylinder and the second driving oil cylinder through the first oil pipe respectively, and then flows out along the second oil pipe, so that the first oil cylinder and the second oil cylinder move simultaneously. However, the diameters of the two branches of the first oil pipe cannot be guaranteed to be completely equal, and the diameters of the two branches of the second oil pipe cannot be guaranteed to be completely equal, so that the synchronism of the movement of the first oil cylinder and the second oil cylinder is poor, and a part to be improved exists.
SUMMERY OF THE UTILITY MODEL
In order to improve the synchronism of two hydro-cylinder motions, this application provides a manual synchronous valves.
The application provides a manual synchronous valves adopts following technical scheme: the utility model provides a manual synchronous valves, includes tribit four-way reversing valve and hydraulic pressure lock, tribit four-way reversing valve includes oil inlet, oil return opening and two working fluid ports, oil inlet department is connected with the oil feed way, oil return opening department is connected with the oil return way, two the working fluid port respectively with two import intercommunications of hydraulic pressure lock, two exits of hydraulic pressure lock are connected with first working oil way and second working oil way respectively, be connected with first synchronizing valve on the first working oil way, two exits of first synchronizing valve are connected with two first execution oil ways respectively.
By adopting the technical scheme, in operation, hydraulic oil flows into the three-position four-way reversing valve from the oil inlet path, then flows into the hydraulic lock, then flows into the first working oil path, then flows into the two first execution oil paths respectively through the first synchronous valve, then flows into the two oil cylinders respectively, then flows into the second working oil path from the two oil cylinders respectively, and flows into the oil return path through the hydraulic lock and the three-position four-way reversing valve, and under the combined action of the three-position four-way reversing valve, the hydraulic lock and the first synchronizer, the hydraulic oil flowing into the valve group from the oil inlet path uniformly flows out from the two execution oil paths in equal quantity and constant speed, so that the synchronism of the movement of the two oil cylinders is improved.
Preferably: the three-position four-way reversing valve is a three-position four-way manual reversing valve.
Through adopting above-mentioned technical scheme, with the help of the manual switching-over valve of tribit cross, help improving the convenience that the staff used the synchronous valves.
Preferably: and an overflow valve is arranged on the second working oil way, and two ends of the overflow valve are respectively communicated with the second working oil way and the oil return way.
By adopting the technical scheme, when the oil pressure on the second working oil way exceeds the unloading pressure of the overflow valve, the overflow valve is opened, and the hydraulic oil flows into the oil return way through the overflow valve, so that the hydraulic oil flows out of the synchronous valve group, and the situation that the synchronous valve group is damaged by high-pressure hydraulic oil is favorably reduced by the overflow valve for communicating the second working oil way with the oil return way.
Preferably: and the second working oil path is communicated with a second synchronous valve, and two outlets of the second synchronous valve are respectively communicated with two second execution oil paths.
By adopting the technical scheme, during work, hydraulic oil in the two oil cylinders respectively flows into the second synchronous valve through the two second execution oil ways and then flows into the second working oil way, so that the movement synchronism of the two oil cylinders is further ensured.
Preferably: and a throttle valve is arranged on the oil return path.
Through adopting above-mentioned technical scheme, with the help of the choke valve, help the staff to adjust the velocity of flow of hydraulic oil in the return circuit to help improving the convenience that the staff adjusted two hydro-cylinders rate of motion.
Preferably: and the oil inlet path and the second working oil path are both provided with manual isolating valves.
Through adopting above-mentioned technical scheme, with the help of setting up two manual isolation valves on oil inlet circuit and second working oil circuit, help improving the convenience that the staff cut off the oil circuit.
Preferably: and the oil inlet path and the second working oil path are both provided with hydraulic meters.
Through adopting above-mentioned technical scheme, help detecting the oil pressure in the hydraulic circuit with the help of setting up the hydraulic pressure table on oil inlet circuit and second working oil circuit to help improving the security that the staff used the synchronous valves.
Preferably: the three-position four-way reversing valve, the hydraulic lock, the first working oil way, the second working oil way, the first synchronous valve, the second synchronous valve and the two first execution oil ways are integrated on the valve block.
Through adopting above-mentioned technical scheme, with the help of the valve piece, help improving the convenience that synchronous valves used.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) by means of the combined action of the three-position four-way reversing valve, the hydraulic lock and the first synchronizing valve, hydraulic oil flowing into the valve group from the oil inlet path uniformly flows out from the two execution oil paths in an equal-quantity and constant-speed manner, and the motion synchronism of the two oil cylinders is improved;
(2) through choke valve, two manual isolation valves and valve block, help improving the convenience that synchronous valves used.
Drawings
Fig. 1 is a hydraulic schematic diagram mainly embodying a synchronous valve group in the present embodiment;
FIG. 2 is a schematic view of the present embodiment mainly showing the back structure of the valve block;
FIG. 3 is a schematic diagram of the front structure of the valve block according to the present embodiment;
fig. 4 is a schematic diagram mainly showing the bottom structure of the valve block in this embodiment.
Reference numerals: 1. a three-position four-way manual reversing valve; 11. an oil inlet; 111. an oil inlet path; 12. an oil return port; 121. an oil return path; 13. a working oil port; 2. hydraulic locking; 21. a first working oil path; 22. a second working oil path; 3. a first synchronization valve; 31. a first execution oil path; 4. a manual isolation valve; 5. a hydraulic gauge; 6. a second synchronizing valve; 61. a second execution oil path; 7. an overflow valve; 8. a throttle valve; 9. a valve block; 91. a port P; 92. a T port; 93. port A1; 94. port A2; 95. port B1; 96. and port B2.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The first embodiment is as follows:
the embodiment of the application discloses a manual synchronous valve group. Referring to fig. 1, the manual synchronous valve group comprises a three-position four-way reversing valve and a hydraulic lock 2, wherein the three-position four-way reversing valve is a three-position four-way manual reversing valve 1. The three-position four-way manual reversing valve 1 comprises an oil inlet 11, an oil return port 12 and two working oil ports 13, wherein the oil inlet 11 is connected with an oil inlet path 111, the oil return port 12 is connected with an oil return path 121, and the two working oil ports 13 are respectively communicated with two inlets of the hydraulic lock 2. Two outlets of the hydraulic lock 2 are respectively connected with a first working oil path 21 and a second working oil path 22, one end of the first working oil path 21, which is far away from the hydraulic lock 2, is communicated with a first synchronizing valve 3, and two outlets of the first synchronizing valve 3 are respectively communicated with two first execution oil paths 31.
During operation, hydraulic oil flows into the three-position four-way manual reversing valve 1 through the oil inlet path 111, and a worker manually switches the three-position four-way manual reversing valve 1, so that the hydraulic oil enters the hydraulic lock 2 to open the hydraulic lock 2, flows into the first working oil path 21, then flows into the two first execution oil paths 31 uniformly at a constant speed through the first synchronization valve 3, and then flows into the two oil cylinders respectively, wherein the hydraulic oil in the two oil cylinders flows into the oil return port 12 through the second working oil path 22, the hydraulic lock 2 and the three-position four-way manual reversing valve 1 in sequence; when a worker switches the three-position four-way manual direction calling valve 1 to the other passage, the flow direction of the hydraulic oil is opposite to that of the hydraulic oil; when a worker switches the three-position four-way manual reversing valve 1 to be disconnected, the hydraulic lock 2 is self-locked, and hydraulic oil does not flow in the synchronous valve bank.
Referring to fig. 1, the oil inlet path 111 and the second working oil path 22 are both provided with a manual isolation valve 4 and a hydraulic gauge 5, one end of the second working oil path 22, which is far away from the hydraulic lock 2, is communicated with a second synchronizing valve 6, and two outlets of the second synchronizing valve 6 are respectively communicated with two second execution oil paths 61. The second working oil path 22 is also communicated with a relief valve 7, and two ends of the relief valve 7 are respectively communicated with the second working oil path 22 and the oil return path 121. The oil return path 121 is provided with a throttle valve 8, an oil inlet 11 of the throttle valve 8 is communicated with an oil return port 12 of the three-position four-way manual reversing valve 1, and the throttle valve 8 and the overflow valve 7 are arranged in parallel.
During operation, the flow rate of hydraulic oil in the oil path is adjusted by an operator through the throttle valve 8, when the pressure of the hydraulic oil in the second working oil path 22 exceeds the opening value of the overflow valve 7, the overflow valve 7 is opened, and the hydraulic oil flows into the oil return path 121 through the overflow valve 7, so that the oil path is prevented from being damaged due to overhigh oil pressure in the oil path.
The implementation principle of the embodiment 1 is as follows: during operation, hydraulic oil flows into the three-position four-way manual reversing valve 1 through the oil inlet path 111, and a worker manually switches the three-position four-way manual reversing valve 1, so that the hydraulic oil enters the hydraulic lock 2 to open the hydraulic lock 2, flows into the first working oil path 21, flows into the two first execution oil paths 31 uniformly at a constant speed through the first synchronizing valve 3, and then flows into the two oil cylinders respectively, wherein the hydraulic oil in the two oil cylinders flows into the oil return port 12 through the second working oil path 22, the hydraulic lock 2 and the three-position four-way manual reversing valve 1 in sequence; the flow rate of the hydraulic oil in the oil path is adjusted by the staff through the throttle valve 8, when the pressure of the hydraulic oil in the second working oil path 22 exceeds the opening value of the overflow valve 7, the overflow valve 7 is opened, the hydraulic oil flows into the oil return path 121 through the overflow valve 7, and the oil path damage caused by overhigh oil pressure in the oil path is prevented; when a worker switches the three-position four-way manual reversing valve 1 to another passage, the flow direction of the hydraulic oil is opposite to that of the hydraulic oil; when a worker switches the three-position four-way manual reversing valve 1 to an open circuit, the hydraulic lock 2 is self-locked, and hydraulic oil does not flow in the valve bank.
Example 2
Referring to fig. 2 and 3, the present embodiment is different from embodiment 1 in that the present embodiment further includes a valve block 9, and the three-position four-way manual directional control valve 1, the hydraulic lock 2, the first working oil path 21, the second working oil path 22, the first synchronizing valve 3, the second synchronizing valve 6, the two first execution oil paths 31, the two second execution oil paths 62, the two manual isolation valves 4, the overflow valve 7, and the throttle valve 8 are integrated on the valve block 9.
Referring to fig. 3 and 4, the valve block 9 is provided with a P port 91 and a T port 92, and the P port 91 and the T port 92 are respectively communicated with an oil inlet 111 and an oil return 121. The valve block 9 is also provided with an A1 port 93, an A2 port 94, a B1 port 95 and a B2 port 96. The a1 port 93 and the a2 port 94 communicate with the two first performance oil passages 31, respectively, and the B1 port 95 and the B2 port 96 communicate with the two second performance oil passages 62, respectively.
In the work, the staff respectively communicates the P port 91 and the T port 92 with the oil tank, then respectively communicates the rod cavity and the rodless cavity of one oil cylinder with the A1 port 93 and the B1 port 95, and respectively communicates the rod cavity and the rodless cavity of the other oil cylinder with the A2 port 94 and the B2 port 96, and the valve block 9 is used for improving the convenience of the valve group.
Example 2 was carried out as follows: in the work, the staff respectively communicates the P port 91 and the T port 92 with the oil tank, then respectively communicates the rod cavity and the rodless cavity of one oil cylinder with the A1 port 93 and the B1 port 95, and respectively communicates the rod cavity and the rodless cavity of the other oil cylinder with the A2 port 94 and the B2 port 96, and the valve block 9 is used for improving the convenience of the valve group.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a manual synchronous valves, its characterized in that includes tribit four-way reversing valve and hydraulic pressure lock (2), tribit four-way reversing valve includes oil inlet (11), oil return port (12) and two work hydraulic fluid ports (13), oil inlet (11) department is connected with oil feed way (111), oil return port (12) department is connected with oil return way (121), two work hydraulic fluid port (13) respectively with two import intercommunications of hydraulic pressure lock (2), two exits of hydraulic pressure lock (2) are connected with first work oil circuit (21) and second work oil circuit (22) respectively, be connected with first synchronizing valve (3) on first work oil circuit (21), two exits of first synchronizing valve (3) are connected with two first execution oil circuit (31) respectively.
2. A set of manual synchronising valves according to claim 1, characterised in that said three-position four-way reversing valve is a three-position four-way manual reversing valve (1).
3. The manual synchronous valve group according to claim 1, wherein an overflow valve (7) is arranged on the second working oil path (22), and two ends of the overflow valve (7) are respectively communicated with the second working oil path (22) and the oil return path (121).
4. A manual synchronous valve group according to claim 1, wherein the second working oil path (22) is communicated with a second synchronous valve (6), and two outlets of the second synchronous valve (6) are respectively communicated with two second execution oil paths (61).
5. A manual synchroniser valve group according to claim 1, characterised in that a throttle valve (8) is provided on said return line (121).
6. A manual synchronisation valve group, according to claim 1, characterised in that both the oil feed circuit (111) and the second working oil circuit (22) are provided with manual isolation valves (4).
7. A manual timing valve group according to claim 1, characterized in that the oil inlet circuit (111) and the second working oil circuit (22) are provided with hydraulic gauges (5).
8. A manual synchronisation valve group according to claim 1, characterised in that it also comprises a valve block (9), the three-position four-way reversing valve, the hydraulic lock (2), the first working oil circuit (21), the second working oil circuit (22), the first synchronisation valve (3), the second synchronisation valve (6) and the two first actuation oil circuits (31) being integrated on the valve block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439609.6U CN212803793U (en) | 2020-07-20 | 2020-07-20 | Manual synchronous valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439609.6U CN212803793U (en) | 2020-07-20 | 2020-07-20 | Manual synchronous valve group |
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| Publication Number | Publication Date |
|---|---|
| CN212803793U true CN212803793U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021439609.6U Active CN212803793U (en) | 2020-07-20 | 2020-07-20 | Manual synchronous valve group |
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| CN (1) | CN212803793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605888A (en) * | 2021-06-24 | 2021-11-05 | 浙江大学 | Single-pump driving energy-saving hydraulic system for small-diameter formation tester |
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2020
- 2020-07-20 CN CN202021439609.6U patent/CN212803793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605888A (en) * | 2021-06-24 | 2021-11-05 | 浙江大学 | Single-pump driving energy-saving hydraulic system for small-diameter formation tester |
| CN113605888B (en) * | 2021-06-24 | 2023-10-13 | 浙江大学 | Single-pump driving energy-saving hydraulic system for small-diameter stratum tester |
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