CN211901120U - Stride across protective equipment and hydraulic system thereof - Google Patents
Stride across protective equipment and hydraulic system thereof Download PDFInfo
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- CN211901120U CN211901120U CN202020028383.4U CN202020028383U CN211901120U CN 211901120 U CN211901120 U CN 211901120U CN 202020028383 U CN202020028383 U CN 202020028383U CN 211901120 U CN211901120 U CN 211901120U
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Abstract
The utility model discloses a stride across protective equipment and hydraulic system thereof, this hydraulic system include main oil circuit, king-tower oil circuit, crossbeam oil circuit, vice tower oil circuit and base oil circuit and gyration oil circuit. Balance valves are arranged on the main tower oil way, the cross beam oil way and the auxiliary tower oil way to lock corresponding hydraulic cylinders and ensure the stability and safety of the movement of piston rods of the hydraulic cylinders. The main tower pipeline explosion-proof valve is connected with the rod cavity and the rodless cavity of the main tower amplitude-variable oil cylinder, the beam amplitude-variable oil cylinder is connected with the beam pipeline explosion-proof valve, the rod cavity and the rodless cavity of the auxiliary tower amplitude-variable oil cylinder are connected with the auxiliary tower pipeline explosion-proof valve so that an oil way can be cut off in time when the pipeline is broken, the hydraulic cylinder stops running in time at the running position, the hydraulic system runs stably, the device is stable, and the safety and the reliability of the operation are maintained.
Description
Technical Field
The utility model relates to a hydraulic system, especially a stride across protective equipment hydraulic system and have this hydraulic system's stride across protective equipment.
Background
The crossing protection equipment has a wide application in engineering work, for example, the crossing protection equipment crosses over a train, a road and the like to provide a work platform or protect the work, so as to avoid the influence on the passing of the train, the road and the like, and when the engineering work is carried out in a complex terrain, a river and the like, the crossing construction protection equipment can be used for crossing the terrain.
The crossing protection device comprises a base, a main tower, a cross beam, an auxiliary tower and a rotating device, wherein the base is arranged on the lower portion of the main tower and connected with supporting legs, the main tower and the auxiliary tower are respectively arranged on two sides of a protected line in parallel, and two ends of the cross beam are respectively connected with the main tower and the auxiliary tower. The crossing protection equipment belongs to large-scale equipment, the maximum self weight of single equipment reaches 20 tons, the operation stability of a hydraulic system of the crossing protection equipment is related to the safety and the reliability of the equipment, a main tower amplitude variation oil cylinder, a cross beam amplitude variation oil cylinder and an auxiliary tower amplitude variation oil cylinder in the hydraulic system respectively control the amplitude variation motion of a main tower, a cross beam and an auxiliary tower, and a support oil cylinder controls the motion of a support. In use, hydraulic line rupture occurs from time to time due to excessive hydraulic line pressure or aging. Once the pipeline breaks, not only the environment is polluted due to the outflow of hydraulic oil, but also the parts such as the main tower and the like are out of control, thereby causing safety accidents.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a stride across protective equipment hydraulic system ensures the device stable when the pipeline bursts, maintains the operation safety.
The utility model discloses still provide a stride across protective equipment who has above-mentioned hydraulic system.
According to the utility model discloses a stride across protective equipment hydraulic system of first aspect embodiment, including main oil circuit, main tower oil circuit, crossbeam oil circuit, auxiliary tower oil circuit, base oil circuit and gyration oil circuit, the main oil circuit includes hydraulic pump and main directional control valve, the oil-out of hydraulic pump with main directional control valve is connected; the main tower oil circuit comprises a main tower reversing valve, a main tower balance valve, a main tower pipeline explosion-proof valve and a main tower amplitude-variable oil cylinder which are sequentially connected, the main tower reversing valve is connected with the main reversing valve, and a rod cavity and a rodless cavity of the main tower amplitude-variable oil cylinder are both connected with the main tower pipeline explosion-proof valve; the crossbeam oil path comprises a crossbeam reversing valve, a crossbeam balance valve, a crossbeam pipeline explosion-proof valve and a crossbeam variable-amplitude oil cylinder which are sequentially connected, the crossbeam reversing valve is connected with the main reversing valve, and a rod cavity and a rodless cavity of the crossbeam variable-amplitude oil cylinder are both connected with the crossbeam pipeline explosion-proof valve; the auxiliary tower oil circuit comprises an auxiliary tower reversing valve, an auxiliary tower balance valve, an auxiliary tower pipeline explosion-proof valve and an auxiliary tower amplitude-varying oil cylinder which are sequentially connected, the auxiliary tower reversing valve is connected with the main reversing valve, and a rod cavity and a rodless cavity of the auxiliary tower amplitude-varying oil cylinder are both connected with the auxiliary tower pipeline explosion-proof valve; the base oil way comprises a base reversing valve and a base oil cylinder which are connected, and the base reversing valve is connected with the main reversing valve; the rotary oil way comprises a motor reversing valve, a motor balance valve and a rotary hydraulic motor which are sequentially connected, and the motor reversing valve is connected with the main reversing valve.
According to the utility model discloses stride across protective equipment hydraulic system, it has following beneficial effect at least: in the main tower oil circuit, the cross beam oil circuit and the auxiliary tower oil circuit, the hydraulic cylinder is locked through the balance valve and the stability and the safety of the piston rod during movement are ensured, the explosion-proof valve is used for timely cutting off the oil circuit when the pipeline is broken, the hydraulic cylinder is timely stopped at the position in operation, the operation of the hydraulic system is stable, the stability of the device is ensured, and the safety and the reliability of the maintenance operation are ensured.
According to the utility model discloses a some embodiments still include the landing leg oil circuit, the landing leg oil circuit is including landing leg switching-over valve, one-way throttle valve and the landing leg hydro-cylinder that connects gradually, the landing leg switching-over valve with main switching-over valve is connected.
According to some embodiments of the utility model, the landing leg switching-over valve with the base switching-over valve is first valve block and second valve block in the manual multiple unit valve respectively.
According to some embodiments of the utility model, the motor switching-over valve the main tower switching-over valve the crossbeam switching-over valve with vice tower switching-over valve is solenoid valve and interlocking.
According to some embodiments of the utility model, the gyration oil circuit still includes motor stack formula one way throttle valve and fast and slow diverter valve, motor stack formula one way throttle valve with the main change valve is connected, fast and slow diverter valve locates motor stack formula one way throttle valve with between the motor change valve.
According to some embodiments of the utility model, main tower switching-over valve main switching-over valve crossbeam switching-over valve vice tower switching-over valve fast slow switching valve with motor switching-over valve is manual solenoid valve.
According to some embodiments of the utility model, the motor balanced valve the main tower balanced valve the crossbeam balanced valve with vice tower balanced valve is two-way balanced valve.
According to some embodiments of the present invention, the oil outlet of the hydraulic pump is further connected to a first overflow valve; the first overflow valve is a multi-stage electro-hydraulic pilot overflow valve.
According to the utility model discloses stride across protective equipment of second aspect embodiment, include according to the utility model discloses the hydraulic system of strideing across protective equipment of above-mentioned first aspect embodiment.
According to the utility model discloses stride across protective equipment has following beneficial effect at least: by adopting the hydraulic system, the hydraulic cylinder is locked by the balance valve, the stability and the safety during descending are ensured, the oil way is timely cut off when the pipeline is broken by the explosion-proof valve, and the hydraulic cylinder is timely stopped at the position in operation, so that the stability of the device is ensured, and the safety and the reliability of operation are maintained.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a crossing protection device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the leg shown in FIG. 1;
FIG. 3 is a schematic diagram of the hydraulic system of the step-over protective equipment shown in FIG. 1;
fig. 4 is a table showing the sequence of the operation of the electromagnets in the hydraulic system shown in fig. 3.
Reference numerals:
a base 100, a main tower 200, a beam 300, an auxiliary tower 400;
the support leg 500, the sleeve 510, the bolt hole 511, the movable rod 520, the positioning hole 521 and the bolt 530;
the hydraulic control system comprises an oil tank 1, a first overflow valve 2, a hydraulic pump 3, a first one-way valve 4, a main reversing valve 5, a main tower reversing valve 6, a main tower balance valve 7, a main tower pipeline explosion-proof valve 8, a main tower amplitude-changing oil cylinder 9, a crossbeam reversing valve 10, a crossbeam balance valve 11, a crossbeam pipeline explosion-proof valve 12, a crossbeam amplitude-changing oil cylinder 13, an auxiliary tower reversing valve 14, an auxiliary tower superposed one-way throttle valve 15, an auxiliary tower balance valve 16, an auxiliary tower pipeline explosion-proof valve 17, an auxiliary tower amplitude-changing oil cylinder 18, a base reversing valve 19, a hydraulic lock 20, a base oil cylinder 21, a support leg reversing valve 22, a one-way throttle valve 23, a support leg oil cylinder 24, a second one-way valve 25, a second overflow valve 26, a manual multi-way valve 27, a motor superposed one-way throttle valve 28, a fast-slow switching valve 29, a motor reversing valve 30, a rotary hydraulic motor 31, a motor balance valve 32, a manual switch, An oil return filter 37, an air filter 38, a liquid level liquid thermometer 39, an oil drain valve 40, a pressure gauge switch 41 and a shock-proof pressure gauge 42;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number.
If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
A crossing protection equipment and its hydraulic system according to an embodiment of the present invention will be described below with reference to fig. 1 and 2.
Referring to fig. 1 and 2, a crossing protection device according to an embodiment of the present invention includes a base 100, a main tower 200, a cross beam 300 and a sub-tower 400, 4 legs 500, and a hydraulic system. The base 100 is arranged at the lower part of the main tower 200, the base 100 is respectively connected with the supporting legs 500, the main tower 200 and the auxiliary tower 400 are respectively arranged at two sides of the protected line in parallel, and two ends of the cross beam 300 are respectively connected with the main tower 200 and the auxiliary tower 400.
The leg 500 comprises a sleeve 510 fixedly arranged on the base 100, and the side wall of the sleeve 510 is provided with at least one pin hole 511; a movable rod 520 capable of moving up and down relative to the sleeve 510 is movably installed in the sleeve 510, and at least two positioning holes 521 sequentially arranged along the vertical direction are formed in the side wall of the movable rod 520; a pin 530 is movably installed in the pin hole 511, and the pin 530 can be simultaneously inserted into the pin hole 511 and one of the positioning holes 521. When the base 100 is raised to a certain level, the movable rod 520 can move downward along the sleeve 510 and abut against the supporting surface, and at this time, the pin 530 is simultaneously inserted into the pin hole 511 and one of the positioning holes 521, thereby locking the relative position of the movable rod 520 and the sleeve 510, and ensuring that the movable rod 520 does not move relative to the sleeve 510 any more, so that the movable rod 520 can support the base 100 and maintain the level of the base 100 unchanged. And because the relative position of the bolt 530 locking movable rod 520 and the sleeve 510 belongs to mechanical locking, except that the bolt 530 is broken off or the bolt 530 is disengaged from the positioning hole 521, the relative position of the locking movable rod 520 and the sleeve 510 is fixed, and further the movable rod 520 can support the bearing base 100 for a long time, thereby ensuring that the base 100 cannot accidentally fall and ensuring safety. The embodiment of the utility model provides an in landing leg 500 be 4, be located the four corners of base 100 respectively, when practical application, can select the quantity and the mounted position of landing leg by oneself according to the use needs, do not do the restriction here.
Referring now to fig. 3 and 4, a hydraulic system for a step-over protective equipment according to an embodiment of the present invention will be described in detail.
The hydraulic system comprises a main oil way, a main tower oil way, a cross beam oil way, an auxiliary tower oil way, a base oil way and a rotary oil way.
The main oil circuit includes an oil tank 1, a first overflow valve 2, a hydraulic pump 3, and a main directional control valve 5. Specifically, an oil inlet of the hydraulic pump 3 is connected with the oil tank 1, an oil outlet of the hydraulic pump 3 is connected with an oil inlet of the first overflow valve 2 and the main directional control valve 5, and an oil outlet of the overflow valve 2 is connected with the oil tank 1. Of course, in practical application, the oil outlet of the hydraulic pump 3 is connected with the oil inlet of the first overflow valve 2 and the main reversing valve 5 through the first check valve 4.
The main tower oil circuit comprises a main tower reversing valve 6, a main tower balance valve 7, a main tower pipeline explosion-proof valve 8 and a main tower amplitude-variable oil cylinder 9 which are sequentially connected, the main tower reversing valve 6 is connected with the main reversing valve 5, and a rod cavity and a rodless cavity of the main tower amplitude-variable oil cylinder 9 are both connected with the main tower pipeline explosion-proof valve 8. Wherein, the variable amplitude motion of main tower variable amplitude cylinder 9 control main tower 200, the embodiment of the utility model provides an in main tower variable amplitude cylinder 9 be two, when practical application, can select main tower variable amplitude cylinder's quantity and mounted position by oneself according to the use needs, do not do the restriction here.
The crossbeam oil circuit comprises a crossbeam reversing valve 10, a crossbeam balance valve 11, a crossbeam pipeline explosion-proof valve 12 and a crossbeam variable-amplitude oil cylinder 13 which are sequentially connected, the crossbeam reversing valve 10 is connected with the main reversing valve 5, and a rod cavity and a rodless cavity of the crossbeam variable-amplitude oil cylinder 13 are both connected with the crossbeam pipeline explosion-proof valve 12. Wherein, the crossbeam becomes width of cloth motion of width of cloth hydro-cylinder 13 control crossbeam 300, the embodiment of the utility model provides an in the crossbeam becomes width of cloth hydro-cylinder 13 be two, when practical application, can select crossbeam to become the quantity and the mounted position of width of cloth hydro-cylinder by oneself according to the use needs, do not do the restriction here.
The auxiliary tower oil circuit comprises an auxiliary tower reversing valve 14, an auxiliary tower stacked one-way throttle valve 15, an auxiliary tower balance valve 16, an auxiliary tower pipeline explosion-proof valve 17 and an auxiliary tower amplitude-changing oil cylinder 18 which are sequentially connected, the auxiliary tower reversing valve 14 is connected with the main reversing valve 5, and a rod cavity and a rodless cavity of the auxiliary tower amplitude-changing oil cylinder 18 are both connected with the auxiliary tower pipeline explosion-proof valve 17. Wherein, the range of motion of the sub-tower 400 is become to sub-tower range variable hydro-cylinder 18 control, the embodiment of the utility model provides an in the sub-tower range variable hydro-cylinder 18 be two, when practical application, can select the quantity and the mounted position that sub-tower range variable hydro-cylinder by oneself according to the use needs, do not restrict here.
The base oil circuit comprises a base reversing valve 19, a hydraulic lock 20 and a base oil cylinder 21 which are sequentially connected, and the base reversing valve 19 is connected with the main reversing valve 5. The cylinder of the base cylinder 21 is fixedly connected to the base 100, and the piston rod of the base cylinder 21 abuts against the ground and applies force to the ground, so that the base can be driven to move up and down in the vertical direction. The embodiment of the utility model provides an in base hydro-cylinder 21 be 4, be located the four corners of base respectively, when practical application, can select base hydro-cylinder 21's quantity and mounted position by oneself according to the use needs, do not do the restriction here.
The rotary oil path comprises a motor superposed one-way throttle valve 28, a fast and slow switching valve 29, a motor reversing valve 30, a motor balance valve 32 and a rotary hydraulic motor 31 which are sequentially connected, and the motor superposed one-way throttle valve 28 is connected with the main reversing valve 5. Wherein the slewing hydraulic motor 31 can drive the main tower 200 to rotate, thereby changing the positions of the cross beam and the auxiliary tower. The embodiment of the utility model provides an in gyration hydraulic motor 31 be 2, be located the left and right sides respectively, when practical application, can select gyration hydraulic motor 31's quantity and mounted position by oneself according to the use needs, do not do the restriction here. The rotation speed of the swing hydraulic motor 31 can be controlled by adjusting the size of the throttle opening on the superimposed one-way throttle 28. The fast and slow switching of the rotation speed can be realized through the fast and slow switching valve 29, and different operation requirements are met. The motor reversing valve 30 can control the rotation direction, start and stop of the rotary hydraulic motor 31, and the motor balancing valve 32 can lock the corresponding rotary hydraulic motor 31 and ensure the stability and safety of the movement of the rotary hydraulic motor 31.
According to the utility model discloses hydraulic system becomes width of cloth hydro-cylinder 9 and main tower switching-over valve 6 between through being provided with main tower balanced valve 7, crossbeam becomes width of cloth hydro-cylinder 13 and is provided with crossbeam balanced valve 11 between the crossbeam switching-over valve 10 between, vice tower becomes width of cloth hydro-cylinder 18 and vice tower switching-over valve 14 between be provided with vice tower balanced valve 16 and lock corresponding pneumatic cylinder and guarantee the stationarity and the security of the piston rod motion of pneumatic cylinder. A main tower pipeline explosion-proof valve 8 is connected to a rod cavity and a rodless cavity of the main tower amplitude-variable oil cylinder 9, a beam pipeline explosion-proof valve 12 is connected to a beam cavity and a rodless cavity of the beam amplitude-variable oil cylinder 13, and a secondary tower pipeline explosion-proof valve 17 is connected to a rod cavity and a rodless cavity of the secondary tower amplitude-variable oil cylinder 18, so that an oil way is cut off in time when a pipeline breaks, and the hydraulic cylinder stops at the position in operation in time, so that the stability of the device is guaranteed, and the safety and the reliability of operation are maintained.
In some embodiments of the present invention, the hydraulic system further includes a supporting leg oil path, the supporting leg oil path includes a supporting leg reversing valve 22, a one-way throttle valve 23 and a supporting leg oil cylinder 24, which are connected in sequence, and the supporting leg reversing valve 22 is connected with the main reversing valve 5. Wherein, the piston rod of the leg cylinder 24 can drive the movable rod 520 of the leg 500 to move up and down in the vertical direction. The embodiment of the utility model provides an in the landing leg hydro-cylinder 24 be 4, a landing leg 500 is equipped with a landing leg hydro-cylinder 24, when practical application, can select landing leg hydro-cylinder 24's quantity and mounted position by oneself according to the use needs, does not do the restriction here. In addition, the 4 supporting leg oil cylinders 24 are all connected with the supporting leg reversing valve 22, and the four base oil cylinders 21 are all connected with the base reversing valve 19, so that the synchronous control of the 4 supporting leg oil cylinders 24 and the synchronous control of the four base oil cylinders 21 can be realized, the independent control of the base and the supporting legs can be realized, the different requirements of the base oil cylinders and the supporting leg oil cylinders on pressure and flow can be met, the operation is convenient, and the synchronization effect is good; the loop is simple, the failure rate is low, and the cost is low.
In some embodiments of the present invention, the leg switch valve 22 and the base switch valve 19 are the first valve plate and the second valve plate of the manual multi-way valve 27, respectively. The embodiment of the utility model provides an in, manual multiple unit valve 27 is the manual multiple unit valve of two antithetical couplet, and first valve block and second valve block are three-position six-way valve, and manual multiple unit valve 27 still includes second check valve 25 and second overflow valve 26, and the oil-out of second check valve 25 is connected with the oil inlet of first valve block and second valve block, and the oil inlet of second check valve 25 is connected with second overflow valve 26. And the manual multi-way valve is adopted, so that the structure is simple, the installation is convenient, and the operation is also convenient. In practical application, the type of the multi-way valve can be selected according to the use requirement, and is not limited herein.
In some embodiments of the present invention, the motor reversing valve 30, the main tower reversing valve 6, the beam reversing valve 10, and the sub-tower reversing valve 14 are all solenoid valves and interlocks. Specifically, the motor reversing valve 30, the main tower reversing valve 6, the beam reversing valve 10 and the auxiliary tower reversing valve 14 are all electromagnetic valves, and the electromagnet a and the electromagnet b of each electromagnetic valve are interlocked, that is, one of the electromagnet a and the electromagnet b of each electromagnetic valve is electrified, and the other is broken. Referring to fig. 4, only one of the motor reversing valve 30, the main tower reversing valve 6, the crossbeam reversing valve 10 and the auxiliary tower reversing valve 14 is powered on, and the other three reversing valves are powered off, that is, the rotary hydraulic motor 31, the main tower amplitude-changing oil cylinder 9, the crossbeam amplitude-changing oil cylinder 13 and the auxiliary tower amplitude-changing oil cylinder 18 can only act independently and cannot act simultaneously, so as to ensure the safety and reliability of operation.
The utility model discloses a some embodiments, motor balanced valve 32, main tower balanced valve 7, crossbeam balanced valve 11 and vice tower balanced valve 16 are two-way balanced valve, all set up the balanced valve into two-way balanced valve to protect the execute component more comprehensively, improve the stationarity and the security of operation.
In some embodiments of the present invention, the main reversing valve 5, the fast/slow switching valve 29, the motor reversing valve 30, the main tower reversing valve 6, the beam reversing valve 10, and the auxiliary tower reversing valve 14 are manual solenoid valves. When the solenoid valve breaks down or cuts off the power supply, can manual operation manual solenoid valve, improve emergent ability, can normally operate during the maintenance of waiting for simultaneously.
The utility model discloses a in some embodiments, base hydro-cylinder 21 and landing leg hydro-cylinder 24 are 4, and every base hydro-cylinder 21 all is connected with a hydraulic pressure lock 20, all is connected with manual switch valve 33 between every hydraulic pressure lock 20 and the base switching-over valve 19, all is connected with ball valve 34 between every landing leg hydro-cylinder 24 rodless cavity and the landing leg switching-over valve 22. The rodless cavity of each base oil cylinder 21 is connected with a manual switch valve 33, and the rodless cavity of each supporting leg oil cylinder 24 is connected with a ball valve 34, so that the independent control of each supporting leg oil cylinder 24 and each base oil cylinder 21 is realized, different pressure and flow requirements of different oil cylinders are met, and the levelness of the base is convenient to adjust.
In some embodiments of the present invention, the first overflow valve 2 is a multi-stage electrohydraulic pilot overflow valve. The pressure of the system is controlled by setting the first overflow valve 2 as a multi-stage electro-hydraulic pilot overflow valve, so that multi-stage changes of different pressures are realized, and different operation requirements are met.
In some embodiments of the present invention, an oil inlet filter 35 and an oil inlet switch valve 36 are connected between the oil inlet of the hydraulic pump 3 and the oil tank 1, and an oil return filter 37, an air filter 38, a liquid level liquid thermometer 39 and an oil drain valve 40 are disposed on the oil tank 1. These elements are provided to ensure the cleanliness of the oil and the safety and reliability of the system.
In some embodiments of the present invention, a pressure gauge switch 41 is connected between the oil outlet of the first check valve 4 and the main directional control valve 5, and the pressure gauge switch 41 is connected to a shock-proof pressure gauge 42. A shock-proof pressure gauge 42 is arranged to detect the working pressure of a main oil circuit in the hydraulic system, and a pressure gauge switch 41 is arranged to protect the shock-proof pressure gauge 42.
In some embodiments of the present invention, the main reversing valve 5 is a two-position three-way manual solenoid valve, the first working oil port is connected to the motor stacked one-way throttle valve 28, the main tower reversing valve 6, the beam reversing valve 10 and the sub-tower reversing valve 14, the second working oil port is connected to the multi-way valve 27, the motor reversing valve 30, the main tower reversing valve 6, the beam reversing valve 10 and the sub-tower reversing valve 14 are three-position four-way manual solenoid valves, and the manual switch valve 33 is a two-position two-way valve.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A step-over protective equipment hydraulic system, comprising:
the main oil way comprises a hydraulic pump (3) and a main reversing valve (5), wherein an oil outlet of the hydraulic pump (3) is connected with the main reversing valve (5);
the main tower oil circuit comprises a main tower reversing valve (6), a main tower balance valve (7), a main tower pipeline explosion-proof valve (8) and a main tower amplitude-variable oil cylinder (9) which are sequentially connected, wherein the main tower reversing valve (6) is connected with the main reversing valve (5), and a rod cavity and a rodless cavity of the main tower amplitude-variable oil cylinder (9) are both connected with the main tower pipeline explosion-proof valve (8);
the crossbeam oil way comprises a crossbeam reversing valve (10), a crossbeam balance valve (11), a crossbeam pipeline explosion-proof valve (12) and a crossbeam variable-amplitude oil cylinder (13) which are sequentially connected, wherein the crossbeam reversing valve (10) is connected with the main reversing valve (5), and a rod cavity and a rodless cavity of the crossbeam variable-amplitude oil cylinder (13) are both connected with the crossbeam pipeline explosion-proof valve (12);
the auxiliary tower oil circuit comprises an auxiliary tower reversing valve (14), an auxiliary tower balance valve (16), an auxiliary tower pipeline explosion-proof valve (17) and an auxiliary tower amplitude-variable oil cylinder (18) which are sequentially connected, wherein the auxiliary tower reversing valve (14) is connected with the main reversing valve (5), and a rod cavity and a rodless cavity of the auxiliary tower amplitude-variable oil cylinder (18) are connected with the auxiliary tower pipeline explosion-proof valve (17);
the base oil path comprises a base reversing valve (19) and a base oil cylinder (21) which are connected, and the base reversing valve (19) is connected with the main reversing valve (5);
the rotary oil way comprises a motor reversing valve (30), a motor balance valve (32) and a rotary hydraulic motor (31) which are sequentially connected, wherein the motor reversing valve (30) is connected with the main reversing valve (5).
2. The crossing protection equipment hydraulic system according to claim 1, further comprising a leg oil path, wherein the leg oil path comprises a leg reversing valve (22), a one-way throttle valve (23) and a leg oil cylinder (24) which are connected in sequence, and the leg reversing valve (22) is connected with the main reversing valve (5).
3. The crossing protection equipment hydraulic system according to claim 2, wherein the number of the base oil cylinders (21) and the number of the leg oil cylinders (24) are 4, each base oil cylinder (21) is connected with one hydraulic lock (20), a manual switch valve (33) is connected between a rodless cavity of each base oil cylinder (21) and the base reversing valve (19), and a ball valve (34) is connected between a rodless cavity of each leg oil cylinder (24) and the leg reversing valve (22).
4. The crossing protection equipment hydraulic system according to claim 3, wherein the leg reversing valve (22) and the base reversing valve (19) are a first valve plate and a second valve plate of a manual multi-way valve (27), respectively.
5. The crossing protection equipment hydraulic system according to claim 1, wherein the motor directional control valve (30), the main tower directional control valve (6), the cross beam directional control valve (10) and the sub tower directional control valve (14) are all solenoid valves and interlock.
6. The crossing protection equipment hydraulic system according to claim 1, wherein the rotary oil path further comprises a motor-superimposed one-way throttle valve (28) and a fast-slow switching valve (29), the motor-superimposed one-way throttle valve (28) is connected with the main reversing valve (5), and the fast-slow switching valve (29) is arranged between the motor-superimposed one-way throttle valve (28) and the motor reversing valve (30).
7. The crossing protection equipment hydraulic system according to claim 6, wherein the main tower directional control valve (6), the main directional control valve (5), the beam directional control valve (10), the auxiliary tower directional control valve (14), the fast and slow switching valve (29), and the motor directional control valve (30) are all manual solenoid valves.
8. The crossing protection equipment hydraulic system according to claim 1, wherein the motor balance valve (32), the main tower balance valve (7), the beam balance valve (11) and the auxiliary tower balance valve (16) are all bidirectional balance valves.
9. The crossing protection equipment hydraulic system according to claim 1, characterized in that a first overflow valve (2) is further connected to an oil outlet of the hydraulic pump (3); the first overflow valve (2) is a multi-stage electro-hydraulic pilot overflow valve.
10. A step-over rig comprising the step-over rig hydraulic system of any of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020028383.4U CN211901120U (en) | 2020-01-07 | 2020-01-07 | Stride across protective equipment and hydraulic system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020028383.4U CN211901120U (en) | 2020-01-07 | 2020-01-07 | Stride across protective equipment and hydraulic system thereof |
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| CN211901120U true CN211901120U (en) | 2020-11-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251012A (en) * | 2021-06-04 | 2021-08-13 | 萨驰智能装备股份有限公司 | Explosion-proof hydraulic system and tire vulcanizer |
| CN113623295A (en) * | 2021-08-13 | 2021-11-09 | 中铁四局集团第四工程有限公司 | Distributed hydraulic system applied to railway crossing protective equipment |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251012A (en) * | 2021-06-04 | 2021-08-13 | 萨驰智能装备股份有限公司 | Explosion-proof hydraulic system and tire vulcanizer |
| CN113623295A (en) * | 2021-08-13 | 2021-11-09 | 中铁四局集团第四工程有限公司 | Distributed hydraulic system applied to railway crossing protective equipment |
| CN113623295B (en) * | 2021-08-13 | 2024-01-23 | 中铁四局集团有限公司 | Distributed hydraulic system applied to railway crossing protective equipment |
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