CN204628149U - Mechanical transmission operation vehicle for contact wire low speed walking system - Google Patents
Mechanical transmission operation vehicle for contact wire low speed walking system Download PDFInfo
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- CN204628149U CN204628149U CN201520187425.8U CN201520187425U CN204628149U CN 204628149 U CN204628149 U CN 204628149U CN 201520187425 U CN201520187425 U CN 201520187425U CN 204628149 U CN204628149 U CN 204628149U
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Abstract
The utility model belongs to the technical field of operation vehicle for contact wire's walking system, is specifically related to a kind of mechanical transmission operation vehicle for contact wire low speed walking system, solves the problem that the low constant speed performance of existing machinery transmission work car cannot meet job requirements.It comprises reversing box one axle being installed on mechanical transmission operation vehicle for contact wire main transmission oil pump driving device and oil pump clutch operating device, be installed on the oilgear of reversing box two axle and be installed on traveling motor and the motor clutch operating device of reversing box three axle.The utility model can realize the two-way low constant speed traveling operation function of operating vehicle, traveling speed is stepless adjustable within the scope of 0 ~ 10km/h, improve the stationarity of mechanical transmission operation vehicle for contact wire low cruise, operation quality and efficiency, for railway contact line construction operation provides reliable equipment guarantee.
Description
Technical field
The utility model belongs to the technical field of operation vehicle for contact wire's walking system, is specifically related to a kind of mechanical transmission operation vehicle for contact wire low speed walking system.
Background technique
Operation vehicle for contact wire is used for the erection of electrification railway contact net line, the installation, maintenance of top facility, maintenance, when interval operation, needs operating vehicle's low speed smooth running.
At present, operation vehicle for contact wire's kind of drive mainly contains hydraudynamic drive, the transmission of liquid machine and mechanical drive mode.At home, mechanical transmission operating vehicle drops into application at first in contact network construction operation, its transmission efficiency is high, user's working service is experienced, there is sturdy market value basis, current mechanical transmission operating vehicle is at contact net stringing, safeguard, very large ratio is still occupied in maintenance construction, but mechanically operated low speed can only be realized by low gear, because its whole transmission system is hard transmission, any change of locomotive resistance all can cause the change of locomotive speed, cause its fluctuation of speed scope larger, so its low constant speed performance cannot meet job requirements, therefore be necessary to improve.
The hydraulic pressure walking system that engineering machinery is conventional,---motor---pump that usually adopts closed system, both pump.And in mechanical transmission operating vehicle, increasing permanent speed functions, its former mechanical drive mode, layout, structure and pump power taking etc. determine to indiscriminately imitate.The utility model makes full use of original mechanical transmission component, adds hydraulic driving link between Transmitted chains, thus in mechanical transmission operating vehicle, realize low constant speed function.
Summary of the invention
The utility model cannot meet the problem of job requirements in order to solve the low constant speed performance of existing machinery transmission work car, provide a kind of railway machinery driving contact net operating vehicle low speed walking system.
The utility model adopts following technological scheme to realize:
A kind of mechanical transmission operation vehicle for contact wire low speed walking system, comprises oil pump driving device and the oil pump clutch operating device of reversing box one axle being installed on mechanical transmission operation vehicle for contact wire main transmission, is installed on the oilgear of reversing box two axle and is installed on traveling motor and the motor clutch operating device of reversing box three axle;
Described oil pump clutch operating device comprises sliding gear I, oil pump live axle, push rod I and oil pump clutch air cylinder, oil pump live axle is connected to a shaft rear end, sliding gear I is set on an axle, oil pump live axle front end is provided with the internal tooth arrangement engaged with sliding gear I, oil pump live axle periphery is also provided with outer toothing, sliding gear I connects push rod I, push rod I connects oil pump clutch air cylinder bar
Described oil pump driving device comprises the transmission shaft be connected with oil pump live axle, and transmission shaft connects pump drive cassette, has the linkage structure of transmission shaft and traveling oil pump in pump drive cassette,
The outer toothing engagement of described oilgear and oil pump live axle;
Described motor clutch operating device comprises sliding gear II, motor drive shaft, push rod II and motor clutch air cylinder, motor drive shaft one end is connected to three shaft rear ends and this live axle is provided with the internal tooth arrangement engaged with sliding gear II, the motor drive shaft the other end is connected with the input shaft of traveling motor, sliding gear II connects push rod II, push rod II the other end connecting motor clutch air cylinder bar.
The power taking of traveling oil pump and traveling motor controls to adopt electricity-empty control mode, namely by oil pump clutch air cylinder, the power taking of motor clutch air cylinder air-operated control traveling oil pump and motor and disengagement power taking, oil pump clutch air cylinder and motor clutch air cylinder are double end cylinder, there is manual reverse of direction and locking framework, described manual reverse of direction and locking framework comprise position limit switch, pivoted arm and stop pin, one end of the cylinder column of oil pump clutch air cylinder or motor clutch air cylinder respectively with connecting rod I, connecting rod II connects, connecting rod I, connecting rod II the other end articulated knuckle, car body is articulated with in the middle part of pivoted arm, pivoted arm both sides arrange position limit switch respectively, when sliding gear and internal tooth arrangement depart from, pivoted arm corresponding position arranges one stroke switch, when sliding gear engages with internal tooth arrangement, pivoted arm corresponding position arranges another position limit switch.
Mechanical transmission operation vehicle for contact wire low speed walking system, adopts open type hydraulic system, comprises traveling oil pump, traveling motor, electro-hydraulic reversing valve, traveling safety overflow valve, controls safety overflow valve and duplex gear pump, traveling oil pump adopts Variable plunger pump, traveling oil pump suction mouth is connected with hydraulic oil container by oil-suction oil filter II, traveling oil pump oil outlet accesses the import of electro-hydraulic reversing valve through one-way valve I, also access traveling safety overflow valve import and pressure gauge II simultaneously, two actuator ports of electro-hydraulic reversing valve are connected with two hydraulic fluid ports of traveling motor, the return opening of electro-hydraulic reversing valve is through radiator, return oil filter is connected with hydraulic oil container, the drain tap of traveling safety overflow valve passes through radiator, return oil filter is connected with hydraulic oil container, the two-way overload valve of speed stabilizing when running for overload protection and descending and two equilibrium valve is integrated with in traveling motor,
Duplex gear pump is installed on the side power take-off of mechanical transmission operation vehicle for contact wire gearbox, duplex gear pump comprises as operation pump supply working platform, wire tensioning device, the huge discharge gear pump of each operating mechanism pressure oil of lorry-mounted crane and provide the small displacement gear pump of pressure oil when zero-bit starts for traveling oil pump, small displacement gear pump inlet port is connected with hydraulic oil container by the oil-suction oil filter I shared, small displacement gear pump oil outlet is divided into four tunnels, the control port of one tunnel access traveling oil pump, one tunnel Access Control safety overflow valve import, two four-way electromagnetic reversing valve imports are accessed on one road, one road cut-in pressure table I, two four-way electromagnetic reversing valve return openings and control safety overflow valve drain tap pass through common pipeline through radiator, return oil filter gets back to hydraulic oil container.
The utility model is provided with traveling oil pump, motor clutch operating device; Be provided with position limit switch, by driver's cab low speed traveling control box tutorial light, traveling pump can be reflected, situation that motor clutch operating device combines when putting in place or throws off.Traveling oil pump, motor clutch for clutch control adopt air-operated control, and operating mechanism also arranges manual reverse of direction and locking framework.Manual control can control clutch when guaranteeing fault, and when power adopts main transmission, low speed rotation system can lock reliably, guarantee driving safety.
During low speed traveling, handle changement, make reversing box be in neutral position, cut off the power transmission chain that main transmission runs.By traveling pump clutch operating device, traveling pump can from the power taking of reversing box one axle.Traveling pump drives traveling revolution thus drives reversing box the 3rd axle, then by flange outputting power before and after four axles, by the final axle shaft gear-box of transmission shaft, realizes car load low speed and walk row cutting.
Hydraulic system traveling oil pump adopts Variable plunger pump, the control pump that the small displacement gear pump of duplex gear pump starts in zero-bit as traveling oil pump, when two four-way electromagnetic reversing valves can realize non-low speed traveling operating mode, the small displacement gear pump off-load of duplex gear pump, to fuel tank, is integrated with two-way overload valve and two equilibrium valve in traveling motor.
Traveling speed-regulating scheme adopt electrohydraulic proportional controller control low speed traveling Variable plunger pump with the size of current of proportion electro-magnet, thus controlled variable plunger pump delivery, realizing traveling speed can set arbitrarily between 0 ~ 10km/h; The selection of traffic direction controls electro-hydraulic reversing valve by reverser and realizes.
The utility model hinge structure has following beneficial effect:
1, in traditional mechanical transmission operation vehicle for contact wire, add low speed traveling driving control system, make mechanical transmission operation vehicle for contact wire have primary driveline simultaneously and to unify operation low speed walking system.The two-way low constant speed traveling operation function of operating vehicle can be realized, traveling speed is stepless adjustable within the scope of 0 ~ 10km/h, improve the stationarity of mechanical transmission operation vehicle for contact wire low cruise, operation quality and efficiency, for railway contact line construction operation provides reliable equipment guarantee.
2, low speed walking system adopts Variable plunger pump electrical-liquid control, and hydraulic system adapts to the change of load automatically, and traveling speed can regulate according to construction needs, reduces car load power loss, reduces system heating.
3, can transform in former mechanical transmission operation vehicle for contact wire, adopt Integrated design, share, the mode such as transformation, be easy to realize and cost-saving.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of reversing box,
Fig. 2 is the A-A sectional drawing of Fig. 1,
Fig. 3 is the B direction view of Fig. 2,
Fig. 4 is oil pump driving device schematic diagram,
Fig. 5 is the utility model hydraulic principle figure,
In figure: 1. an axle, 2. input flange, 3. two axles, 4. three axles, 5. four axle half front axles, 6. output flange, 7. semiaxis after four axles, 8. motor mount, 9. motor drive shaft, 10. oilgear, 11. sliding gears I, 12. oil pump live axles, 13. push rods I, 14. oil pump clutch air cylinder bars, 15. oil pump clutch air cylinders, 16. connecting rods I, 17. bearing pins, 18. stop pins, 19. position limit switches, 20. pivoted arms, 21. rotating shafts, 22. fitting seats, 23. traveling motors, 24. sliding gears II, 25. push rods II, 26. clutch slide bars, 27. connecting pins, 28. connecting rods, 29. motor clutch air cylinders, rod before 30. motor clutch air cylinders, 31. tightening nuts, 32. connecting rods II, 33. transmission shafts, 34. flange shaft sleeves, 35. flat keys, 36. pump drive case, 37. traveling oil pumps, 38. liquid level liquid thermometers, 39. air filters, 40. oil-suction oil filters I, 41. oil-suction oil filters II, 42. duplex gear pump, 43. control safety overflow valve, 44. two four-way electromagnetic reversing valves, 45. traveling safety overflow valves, 46. one-way valves I, 47. electro-hydraulic reversing valves, 48. pressure gauges I, 49. pressure gauges II, 50. radiators, 51. one-way valves II, 52. return oil filters.
Embodiment
By reference to the accompanying drawings embodiment of the present utility model is described further.
One, mechanical transmission operation vehicle for contact wire power system main transmission route
Mechanical transmission operation vehicle for contact wire power system main transmission route is: motor → clutch → gearbox → transmission shaft → reversing transfer case → transmission shaft → axle gear box → it is right to take turns.Reversing transfer case is four axles, front and back split type structure, and in reversing transfer case link, whole power imports reversing box into by the input flange of an axle, is exported by the output flange at four axle two ends.Reversing transfer case is the overall shell type structures of four axles, an axle has a spur gear, utilizes shift fork to stir this gear and make it to engage with two axle straight-tooth or three axle straight-tooth respectively, run forward or backwards to obtain operating vehicle.
Two, low speed walking system
Mechanical transmission operation vehicle for contact wire low speed walking system, comprises oil pump driving device and the oil pump clutch operating device of reversing box one axle being installed on mechanical transmission operation vehicle for contact wire main transmission, is installed on the oilgear 10 of reversing box two axle and is installed on traveling motor 23 and the motor clutch operating device of reversing box three axle.
Described oil pump clutch operating device comprises sliding gear I 11, oil pump live axle 12, push rod I 13 and oil pump clutch air cylinder 15, oil pump live axle 12 is connected to axle 1 rear end, sliding gear I 11 is set on an axle 1, oil pump live axle 12 front end is provided with the internal tooth arrangement engaged with sliding gear I 11, oil pump live axle 12 periphery is also provided with outer toothing, sliding gear I 11 connects push rod I 13, push rod I 13 connects oil pump clutch air cylinder bar 14
Described oil pump driving device comprises the transmission shaft 33 be connected with oil pump live axle 12, and transmission shaft connects pump drive cassette 36, has the linkage structure of transmission shaft 33 and traveling oil pump 37 in pump drive cassette 36;
The outer toothing engagement of described oilgear 10 and oil pump live axle 12;
Described motor clutch operating device comprises sliding gear II 24, motor drive shaft 9, push rod II 25 and motor clutch air cylinder 29, motor drive shaft 9 one end is connected to three axle 4 rear ends and this live axle is provided with the internal tooth arrangement engaged with sliding gear II 24, the motor drive shaft the other end is connected with the input shaft of traveling motor 23, sliding gear II 24 connects push rod II 25, push rod II 25 the other end connecting motor clutch air cylinder bar.
The power taking of traveling oil pump and traveling motor controls to adopt electricity-empty control mode, namely by oil pump clutch air cylinder 15, the power taking of motor clutch air cylinder 29 air-operated control traveling oil pump and motor and disengagement power taking, oil pump clutch air cylinder 15 and motor clutch air cylinder 29 are double end cylinder, there is manual reverse of direction and locking framework, described manual reverse of direction and locking framework comprise position limit switch, pivoted arm 20 and stop pin 18, one end of the cylinder column of oil pump clutch air cylinder 15 or motor clutch air cylinder 29 respectively with connecting rod I 16, connecting rod II 32 connects, connecting rod I 16, connecting rod II 32 the other end articulated knuckle, car body is articulated with in the middle part of pivoted arm, pivoted arm 20 both sides arrange position limit switch respectively, when sliding gear and internal tooth arrangement depart from, pivoted arm corresponding position arranges one stroke switch, when sliding gear engages with internal tooth arrangement, pivoted arm corresponding position arranges another position limit switch.
2.1 low speed walking system drive paths
Motor → clutch → gearbox → transmission shaft → reversing transfer case one axle → driving traveling oil pump → traveling motor → drive dynamic triaxial to rotate → tetra-axles → front and back transmission shaft → front and back axle gear box → front and back wheels pair.
During low speed traveling, handle changement, make reversing box be in neutral position, cut off the power transmission chain that main transmission runs.The hydraulic transmission of traveling motor is driven, by four axle outputting powers by traveling oil pump.
The clutch for clutch control of 2.2 traveling oil pumps
When needing to use traveling oil pump, oil pump power taking switch spanner on manipulation console is to " oil pump extension " position, electrically-controlled valve action, reservoir fills wind to oil pump clutch air cylinder, the cylinder column backward mobile sliding gear I that drives moves and engages with the internal tooth of oil pump live axle, power is passed to traveling oil pump, the gear such as two axles, three axles all stops operating simultaneously, only oilgear dallies and is thrown on shell wall by lubricant oil on two axles, collected the front and back bearings being directed to an axle by the groove on shell wall, ensure good lubrication.
In like manner, traveling oil pump need to pluck from time, handle oil pump power taking switch spanner on console to " oil pump is plucked " position, electrically-controlled valve action, reservoir fills wind to cylinder, and cylinder column moves forward and promotes sliding gear I and move and throws off with the internal tooth of oil pump live axle and engage, the power supply of cut-out traveling oil pump.
The clutch for clutch control of 2.3 motors:
When motor needs to hang conjunction, motor power taking switch spanner on manipulation console is to " motor extension " position, electrically-controlled valve action, reservoir fills wind to motor clutch air cylinder, the cylinder column backward mobile sliding gear II that promotes moves and engages with the internal tooth arrangement of motor drive shaft, the rotational power of traveling oil pump drive motor is passed to three axles, is more finally outputed power by the output flange at four axle two ends by gear transmission.
In like manner, traveling motor need pluck from time, motor power taking switch spanner on manipulation console is to " motor is plucked " position, electrically-controlled valve action, reservoir fills wind to motor clutch air cylinder, cylinder column moves forward and drives sliding gear II to move and throws off with the internal tooth of motor drive shaft and engage, and the power of cut-out traveling motor and three axles connects.
2.4 hydraulic control system
The utility model its adopt open type hydraulic system, comprise traveling oil pump 37, traveling motor 23, electro-hydraulic reversing valve 47, traveling safety overflow valve 45, control safety overflow valve 43 and duplex gear pump 42, traveling oil pump 37 adopts Variable plunger pump, traveling oil pump 37 inlet port is connected with hydraulic oil container by oil-suction oil filter II 41, traveling oil pump 37 oil outlet accesses the import of electro-hydraulic reversing valve 47 through one-way valve I 46, also access traveling safety overflow valve 45 import and pressure gauge II 49 simultaneously, two actuator ports of electro-hydraulic reversing valve 47 are connected with two hydraulic fluid ports of traveling motor 23, the return opening of electro-hydraulic reversing valve 47 is through radiator 50, return oil filter 52 is connected with hydraulic oil container, the drain tap of traveling safety overflow valve 43 is by radiator 50, return oil filter 52 is connected with hydraulic oil container, the two-way overload valve of speed stabilizing when running for overload protection and descending and two equilibrium valve is integrated with in traveling motor 23,
Duplex gear pump 42 is installed on the side power take-off of mechanical transmission operation vehicle for contact wire gearbox, duplex gear pump 42 comprises as operation pump supply working platform, wire tensioning device, the huge discharge gear pump of each operating mechanism pressure oil of lorry-mounted crane and provide the small displacement gear pump of pressure oil when zero-bit starts for traveling oil pump, small displacement gear pump inlet port is connected with hydraulic oil container by the oil-suction oil filter I 40 shared, small displacement gear pump oil outlet is divided into four tunnels, the control port of one tunnel access traveling oil pump 37, one tunnel Access Control safety overflow valve 43 import, the import of two four-way electromagnetic reversing valves 44 is accessed on one road, one road cut-in pressure table I 48, two four-way electromagnetic reversing valve 44 return openings and control safety overflow valve 43 drain tap pass through common pipeline through radiator 51, return oil filter 52 gets back to hydraulic oil container.Oil heat radiation 9 adopts DC fans to drive 24V, the convenient and job safety of power taking in operating vehicle, maneuvering and control.
During the non-low speed operation in the utility model hydraulic system place, control pump 0 off-load oil circuit, for reducing power loss, reduces system heating, reduces fuel tank volume, ensure that hydraulic system normally works.(control pump, refers to the small displacement gear pump of duplex gear pump, as traveling oil pump zero-bit start or working pressure < 4MPa time, the pilot pressure of 4MPa is provided.)
2.5 low speed speed governing and direction controlling
Speed-regulating scheme adopt electrohydraulic proportional controller control low speed traveling oil pump with the size of current of electromagnet, thus control traveling oil pump delivery, realize the change of speed.Because the electrical signal that electric control handle exports is continually varying (proportional quantities), so oily pump delivery is also continually varying, traveling speed can set arbitrarily between 0 ~ 10km/h; The selection of traffic direction controls electro-hydraulic reversing valve by reverser and realizes.
Circuit between operation of oil pump, motor operations is interlocking, and their job order is motor after first oil pump, and after only having pump switch closed, motor operations switch just works.
Three, the manipulation of operation low speed walking system
The changement of 3.1 Inspection vehicles must be placed in interposition, and gearbox is placed in neutral position, and duplex gear pump is in running order, the mechanical caging of low speed traveling oil pump, motor is cancelled.According to construction environment, select the need of use radiator.
Working truck is placed in working condition by 3.2, handles the low speed traveling oil pump control switch of low speed traveling control box: when low speed traveling oil pump control switch cuts out, " oil pump is plucked " tutorial light is bright, and " oil pump extension " tutorial light goes out; Closed low speed traveling oil pump control switch (this switch is pulled 45 ° to the right), reversing transfer case power taking electrically-controlled valve obtains electric, and now " oil pump is plucked " tutorial light goes out, and " oil pump extension " tutorial light is bright, represents that low speed traveling oil pump is suspended to position.
3.3 handle low speed traveling motor control switch: when low speed traveling motor control switch is closed, " motor is plucked " tutorial light is bright, and " motor extension " tutorial light goes out; Closed low speed traveling motor control switch (by this switch to walking to pull 45 °), reversing transfer case power taking electrically-controlled valve obtains electric, and now " motor is plucked " tutorial light goes out, and " motor extension " tutorial light is bright, represents that low speed traveling motor is suspended to position.
If 3.4 occur " tooth top tooth " phenomenon in low speed traveling oil pump, motor are seted out, by plucking gear again after gearbox shifting, an axle of reversing transfer case is rotated a little; After action completes, corresponding tutorial light is bright.
Low speed traveling reverser is pulled " low-speed forward " position by 3.5, and by control of engine speed at about 1300r/min, let slip the clutch, is linked into 7 gears, more slowly lifts clutch by gearbox, drives traveling operation of oil pump by reversing transfer case.
3.6 determine the required direction run of vehicle, and pull to correct direction by the low speed traveling reverser on control panel, carry out speed regulating control by electric control handle, operating vehicle's low speed traveling speed can carry out stepless time adjustment between 0 ~ 10km/h.
When 3.7 low speed travelings are stopped, first being pushed back to by electric control handle corresponding to low speed traveling speed is the position of 0, and then pulls to interposition by low speed traveling reverser, presses bypass stop button and makes car brakeing.
Claims (3)
1. a mechanical transmission operation vehicle for contact wire low speed walking system, is characterized in that comprising oil pump driving device and the oil pump clutch operating device of reversing box one axle being installed on mechanical transmission operation vehicle for contact wire main transmission, is installed on the oilgear (10) of reversing box two axle and is installed on traveling motor (23) and the motor clutch operating device of reversing box three axle;
Described oil pump clutch operating device comprises sliding gear I (11), oil pump live axle (12), push rod I (13) and oil pump clutch air cylinder (15), oil pump live axle (12) is connected to an axle (1) rear end, sliding gear I (11) is set on an axle (1), oil pump live axle (12) front end is provided with the internal tooth arrangement engaged with sliding gear I (11), oil pump live axle (12) periphery is also provided with outer toothing, sliding gear I (11) is upper connects push rod I (13), push rod I (13) connects oil pump clutch air cylinder bar (14)
Described oil pump driving device comprises the transmission shaft (33) be connected with oil pump live axle (12), and transmission shaft connects pump drive cassette (36), has the linkage structure of transmission shaft (33) and traveling oil pump (37) in pump drive cassette (36),
The outer toothing engagement of described oilgear (10) and oil pump live axle (12);
Described motor clutch operating device comprises sliding gear II (24), motor drive shaft (9), push rod II (25) and motor clutch air cylinder (29), motor drive shaft (9) one end is connected to three axles (4) rear end and this live axle is provided with the internal tooth arrangement engaged with sliding gear II (24), the motor drive shaft the other end is connected with the input shaft of traveling motor (23), sliding gear II (24) is upper connects push rod II (25), push rod II (25) the other end connecting motor clutch air cylinder bar.
2. mechanical transmission operation vehicle for contact wire according to claim 1 low speed walking system, it is characterized in that the power taking of traveling oil pump and traveling motor controls to adopt electricity-empty control mode, namely by oil pump clutch air cylinder (15), the power taking of motor clutch air cylinder (29) air-operated control traveling oil pump and motor and disengagement power taking, oil pump clutch air cylinder (15) and motor clutch air cylinder (29) are double end cylinder, there is manual reverse of direction and locking framework, described manual reverse of direction and locking framework comprise position limit switch, pivoted arm (20) and stop pin (18), one end of the cylinder column of oil pump clutch air cylinder (15) or motor clutch air cylinder (29) respectively with connecting rod I (16), connecting rod II (32) connects, connecting rod I (16), connecting rod II (32) the other end articulated knuckle, car body is articulated with in the middle part of pivoted arm, pivoted arm (20) both sides arrange position limit switch respectively, when sliding gear and internal tooth arrangement depart from, pivoted arm corresponding position arranges one stroke switch, when sliding gear engages with internal tooth arrangement, pivoted arm corresponding position arranges another position limit switch.
3. mechanical transmission operation vehicle for contact wire according to claim 1 and 2 low speed walking system, it is characterized in that it adopts open type hydraulic system, comprise traveling oil pump (37), traveling motor (23), electro-hydraulic reversing valve (47), traveling safety overflow valve (45), control safety overflow valve (43) and duplex gear pump (42), traveling oil pump (37) adopts Variable plunger pump, traveling oil pump (37) inlet port is connected with hydraulic oil container by oil-suction oil filter II (41), traveling oil pump (37) oil outlet accesses the import of electro-hydraulic reversing valve (47) through one-way valve I (46), also access traveling safety overflow valve (45) import and pressure gauge II (49) simultaneously, two actuator ports of electro-hydraulic reversing valve (47) are connected with two hydraulic fluid ports of traveling motor (23), the return opening of electro-hydraulic reversing valve (47) is through radiator (50), return oil filter (52) is connected with hydraulic oil container, the drain tap of traveling safety overflow valve (43) is by radiator (50), return oil filter (52) is connected with hydraulic oil container, the two-way overload valve of speed stabilizing when running for overload protection and descending and two equilibrium valve is integrated with in traveling motor (23),
Duplex gear pump (42) is installed on the side power take-off of mechanical transmission operation vehicle for contact wire gearbox, duplex gear pump (42) comprises as operation pump supply working platform, wire tensioning device, the huge discharge gear pump of each operating mechanism pressure oil of lorry-mounted crane and provide the small displacement gear pump of pressure oil when zero-bit starts for traveling oil pump, small displacement gear pump inlet port is connected with hydraulic oil container by the oil-suction oil filter I (40) shared, small displacement gear pump oil outlet is divided into four tunnels, the control port on one tunnel access traveling oil pump (37), one tunnel Access Control safety overflow valve (43) import, the import of two four-way electromagnetic reversing valves (44) is accessed on one road, one road cut-in pressure table I (48), two four-way electromagnetic reversing valve (44) return openings and control safety overflow valve (43) drain tap pass through common pipeline through radiator (51), return oil filter (52) gets back to hydraulic oil container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520187425.8U CN204628149U (en) | 2015-03-31 | 2015-03-31 | Mechanical transmission operation vehicle for contact wire low speed walking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520187425.8U CN204628149U (en) | 2015-03-31 | 2015-03-31 | Mechanical transmission operation vehicle for contact wire low speed walking system |
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| Publication Number | Publication Date |
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| CN204628149U true CN204628149U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520187425.8U Withdrawn - After Issue CN204628149U (en) | 2015-03-31 | 2015-03-31 | Mechanical transmission operation vehicle for contact wire low speed walking system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776083A (en) * | 2015-03-31 | 2015-07-15 | 太原轨道交通装备有限责任公司 | Low-speed walking system of mechanical drive operation vehicle for contact wire |
-
2015
- 2015-03-31 CN CN201520187425.8U patent/CN204628149U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776083A (en) * | 2015-03-31 | 2015-07-15 | 太原轨道交通装备有限责任公司 | Low-speed walking system of mechanical drive operation vehicle for contact wire |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 030024 No. 129 Xinghua West Street, Wan Berlin District, Shanxi, Taiyuan Patentee after: CRRC TAIYUAN CO., LTD. Address before: 030009 Shanxi Province, Taiyuan city Xinghualing District No. 10 Jiefang North Road Patentee before: Taiyuan Rail Traffic Equipment Co., Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20171010 |