阅读说明：本技术 一种地埋式电液转辙机动作杆机构及其工作方法 (Action rod mechanism of buried electro-hydraulic switch machine and working method thereof ) 是由 蒉凯腾 李金海 吴晓悦 宋微微 康爱伟 于 2021-01-19 设计创作，主要内容包括：本发明提供一种地埋式电液转辙机动作杆机构及其工作方法,插接在转辙机机壳(1)对应通孔处,包括启动机构(35),所述启动机构(35)卡接在EHA电液执行系统(2)上,动作杆机构(3)还包括动作杆(31)、动作杆套(32)、挤脱机构(33)、锁闭块(34)、速动片(36),所述速动片(36)上设有凹槽一(37),所述动作杆(31)穿过所述动作杆套(32)并由挤脱机构(33)固定,所述锁闭块(34)固定在所述动作杆套(32)上,所述速动片(36)通过销轴固定在所述启动机构(35)上。启动机构卡接在所述EHA电液执行系统上,其动力采用液压驱动,连接结构简单,可靠性高,维护工作量小,锁闭区域目测可见,更加便于道路交通使用。(The invention provides a buried electro-hydraulic switch machine action rod mechanism and a working method thereof, wherein the buried electro-hydraulic switch machine action rod mechanism is inserted into a corresponding through hole of a switch machine shell (1) and comprises a starting mechanism (35), the starting mechanism (35) is clamped on an EHA electro-hydraulic execution system (2), the action rod mechanism (3) further comprises an action rod (31), an action rod sleeve (32), an extrusion-release mechanism (33), a locking block (34) and a quick-acting sheet (36), a first groove (37) is formed in the quick-acting sheet (36), the action rod (31) penetrates through the action rod sleeve (32) and is fixed by the extrusion-release mechanism (33), the locking block (34) is fixed on the action rod sleeve (32), and the quick-acting sheet (36) is fixed on the starting mechanism (35) through a pin shaft. The starting mechanism is clamped on the EHA electro-hydraulic execution system, the power of the starting mechanism is driven by hydraulic pressure, the connecting structure is simple, the reliability is high, the maintenance workload is small, the visual inspection of a locking area is visible, and the starting mechanism is more convenient for road traffic.)

1. The utility model provides a bury action bar mechanism of formula electric liquid goat, pegs graft in goat casing (1) and corresponds through-hole department, its characterized in that: including actuating mechanism (35), actuating mechanism (35) joint is on EHA electric liquid actuating system (2), and actuating lever mechanism (3) still include actuating lever (31), actuating lever cover (32), crowded mechanism (33) of taking off, locking piece (34), fast-moving piece (36), be equipped with recess (37) on fast-moving piece (36), actuating lever (31) pass actuating lever cover (32) are fixed by crowded mechanism (33) of taking off, locking piece (34) are fixed on actuating lever cover (32), fast-moving piece (36) are fixed through the round pin axle starting mechanism (35) are last.

2. The action rod mechanism of the buried electro-hydraulic switch machine as claimed in claim 1, wherein: two ends of the action rod (31) penetrate through the switch machine shell (1) and are sealed by a Y-shaped sealing ring and/or a wool felt to ensure that the inside of the switch machine shell (1) is sealed.

3. The action rod mechanism of the buried electro-hydraulic switch machine as claimed in claim 1, wherein: the starting mechanism (35) is clamped with a cylinder barrel of the hydraulic cylinder (22), and the motor drives the cylinder barrel of the hydraulic cylinder (22) to do reciprocating motion, so that the starting mechanism (35) is driven to move, and the whole action rod mechanism (3) operates.

4. The action rod mechanism of the buried electro-hydraulic switch machine as claimed in claim 3, wherein: one side of the starting mechanism (35) connected with the hydraulic cylinder (22) is provided with at least two symmetrically arranged arc-shaped groove buckles, and the arc-shaped groove buckles are matched with the cylinder barrel of the hydraulic cylinder (22).

5. The action rod mechanism of the buried electro-hydraulic switch machine as claimed in claim 1, wherein: the EHA electro-hydraulic execution system (2) is fixed on a mounting seat corresponding to the switch machine shell (1), and the starting mechanism (35) is clamped on the EHA electro-hydraulic execution system (2).

6. The action rod mechanism of the buried electro-hydraulic switch machine as claimed in claim 5, wherein: EHA electricity liquid actuating system (2) comprises integral type electricity liquid power pack (21), pneumatic cylinder (22), connection fixed plate (23) and oil pressure monitoring sensor (24), connect fixed plate (23) fixed connection integral type power pack (21) with pneumatic cylinder (22), oil pressure monitoring sensor (24) install in on the interface of connection fixed plate (23).

7. The action rod mechanism of the buried electro-hydraulic switch machine as claimed in claim 5, wherein: the switch machine is characterized in that a display rod mechanism (4) is further arranged in the switch machine shell (1), the display rod mechanism (4) is installed on the inner side of the switch machine shell (1), a node base system (5) is fixed on an installation base of the switch machine shell (1), the node base system (5) is located between the action rod mechanism (3) and the display rod mechanism (4), and the action rod mechanism (3) is connected with a manual operation system (6).

8. The action rod mechanism of the buried electro-hydraulic switch machine as claimed in claim 7, wherein: the node base system (5) comprises a left node base (51), a right node base (52), a node base adjusting rod (53) and a node base fixing plate (54), wherein the left node base (51) and the right node base (52) are fixed on the node base fixing plate (54) through bolts.

9. The action rod mechanism of the buried electro-hydraulic switch machine as claimed in claim 8, wherein: a first projection and a second projection are fixedly arranged on the sides, adjacent to the action rod mechanism (3) and the indication rod mechanism (4), of the left node seat (51) and the right node seat (52) in the node seat system (5) along the radial direction of the node seat adjusting rod (53), a second groove (41) is formed in the indication rod mechanism (4), and the second groove (41) is matched with the second projection and the first groove (37) is matched with the first projection respectively.

10. A working method of an action rod mechanism of a buried electro-hydraulic switch machine is characterized by comprising the following steps: comprises the following steps;

(1) in the electrified state, the EHA electro-hydraulic execution system (2) is driven to drive the hydraulic cylinder (22) to operate, the starting mechanism (35) is driven to move, and the action rod mechanism (3) is further pushed;

(2) the starting mechanism (35) drives the locking block (34) to be separated from the locking state, and then drives the action rod (31) to do transverse movement, so as to pull the switch tongue and change the opening direction of the switch;

(3) after the turnout opening direction is completed, the starting mechanism (35) can continue to move, the locking block (34) rotates to complete locking and moves out of a corresponding locking safety size, at the moment, the starting mechanism (35) pulls the quick-acting piece (36) to move, the starting mechanism (35) is enabled to coincide with the first groove (37), and the control system controls the EHA hydraulic driving unit to stop working.

Technical Field

The invention belongs to the technical field of railway traffic equipment, and particularly relates to an action rod mechanism of a buried electro-hydraulic switch machine and a working method thereof.

Background

The national conditions of the population of China determine that the strategy of 'priority development of public transportation' needs to be implemented for a long time, and urban rail transit is gradually becoming the development key point of public transportation of tourist cities and urban groups. In recent years, due to the stable development of economy and the strong support of governments, the urban rail transit construction in China is gradually expanded, and the urban rail transit construction market becomes the largest urban rail transit construction market in the world. In the tram project, urban rail transit line facilities are arranged on urban roads, and the roads are inevitably crossed and shared by pedestrians and other vehicles. Therefore, the design starting point of the special switch machine for the tramcar is that the buried installation environment is considered, the dustproof and waterproof performance is achieved, and the protection grade of the shell needs to meet the requirement of IP 67.

Present internal formula goat of burying is mostly electric drive, generally adopts multi-stage gear transmission, and the driving medium is many, and inertia is big, need set up buffering in addition and locking mechanism and overcome inertia to lead to components and parts to be various, the structure is complicated, makes whole platform equipment reliability reduce, whole goat inefficiency thereupon. Moreover, since the number of parts is large, the maintenance workload is increased.

The action rod mechanism is an important action executing mechanism of a buried electric hydraulic point switch in urban rail transit, has the functions of changing the turnout opening direction, locking a turnout switch rail, protecting the point switch and the like, and is directly related to the traffic safety. The action rod mechanism of the existing buried electro-hydraulic switch machine is mostly used in the switch machine driven by the motor, the action is achieved by matching the rotation of the motor, and the action rod mechanism is mostly driven by multi-stage gears, so that the transmission parts are more, the structure of the action rod mechanism is complex, the locking area is difficult to observe, the reliability is low, and the maintenance workload is large.

The utility model with the patent application number of CN201920547873.2 relates to an electro-hydraulic switch machine, which comprises a main body and an electric crank; the main body comprises a shell and a transmission shaft for driving the turnout to move, and the transmission shaft is rotatably arranged on the shell; the electric crank comprises a sleeve, a motor and a shell; the sleeve and the motor are both arranged on the shell; the electric crank is detachably connected to the shell through the shell; the motor is connected with the sleeve through a shaft, and the motor is used for driving the shaft to rotate so as to drive the sleeve to rotate through the shaft; the sleeve is used for being connected with the transmission shaft so as to drive the transmission shaft to rotate when being driven. The electric crank is detachably connected to the main body, and workers can directly carry out daily inspection or maintenance on the electric crank on the electro-hydraulic switch machine on site without carrying. However, this patent does not solve the problem that the locking area of the actuating lever mechanism is not easily observed.

The utility model discloses a patent application number CN201821340829.6 relates to an electric liquid goat action bar subassembly, action bar subassembly includes action bar, reinforcing plate, locking piece, compound bush and round pin axle; the reinforcing plate is fixed on the action rod through screws, the locking blocks are divided into two groups, and the end part of each group of locking block is embedded with the composite bushing and is arranged in a space corresponding to the action rod and the reinforcing plate through a pin shaft. For this utility model action bars subassembly, improve after action bars subassembly will be packed into the box with the form of part, but this patent still does not solve the difficult scheduling problem of observing in action bars mechanism locking region.

Disclosure of Invention

The invention aims to provide an action rod mechanism of a buried electro-hydraulic switch machine and a working method thereof, aiming at the problems of complex structure, low reliability of the whole device, low efficiency, complex structure of the action rod mechanism, difficult observation of a locking area, low reliability and large maintenance workload of the buried electro-hydraulic switch machine in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

an action rod mechanism of a buried electro-hydraulic switch machine is inserted in a corresponding through hole of a switch machine shell and comprises a starting mechanism,

the starting mechanism is connected to the EHA electro-hydraulic execution system in a clamped mode, the action rod mechanism further comprises an action rod, an action rod sleeve, an extrusion release mechanism, a locking block and a quick action piece, a groove I is formed in the quick action piece, the action rod penetrates through the action rod sleeve and is fixed by the extrusion release mechanism, the locking block is fixed to the action rod sleeve, and the quick action piece is fixed to the starting mechanism through a pin shaft.

Preferably, both ends of the actuating rod penetrate through the switch machine casing, and are sealed by a Y-shaped sealing ring and/or a wool felt to ensure the internal sealing of the switch machine casing. In the process of whole operation, the cylinder of pneumatic cylinder drives actuating mechanism and moves, actuating mechanism drives the locking piece, thereby drive action pole and the action pole cover action, the pulling switch rail carries out the switch and removes, make actuating mechanism when removing suitable position, actuating mechanism can continue to remove, accomplish the locking with the locking piece rotation and remove corresponding locking safety size, reach the switch locking, actuating mechanism will stimulate the quick-action piece to remove this moment, make actuating mechanism and recess one coincidence, quick-action piece recess is aimed at the node seat inspection column this moment, make the inspection column fall into recess one, the node seat outage, whole action pole mechanism can stop immediately, this design makes the operating efficiency and the accuracy of whole buried electric liquid goat higher.

In any of the above schemes, preferably, the actuating mechanism is connected with a cylinder of the hydraulic cylinder in a clamping manner, and the motor drives the cylinder of the hydraulic cylinder to do reciprocating motion, so as to drive the actuating mechanism to move, and the whole actuating rod mechanism operates.

In any one of the above embodiments, preferably, the extruding and removing mechanism presses the extruding and cutting pin into the tapered groove of the actuating rod by a disc spring.

Preferably in any one of the above schemes, at least two symmetrically arranged arc-shaped groove buckles are arranged on one side of the starting mechanism connected with the hydraulic cylinder, and the arc-shaped groove buckles are matched with the cylinder barrel of the hydraulic cylinder.

In any of the above schemes, preferably, the EHA electro-hydraulic execution system is fixed on a mounting seat corresponding to the switch machine casing, and the starting mechanism is clamped on the EHA electro-hydraulic execution system.

In any of the above solutions, preferably, a display rod mechanism is further disposed in the switch machine casing, the display rod mechanism is mounted inside the switch machine casing, a node base system is fixed on the switch machine casing mounting base, the node base system is located between the actuating rod mechanism and the display rod mechanism, and the actuating rod mechanism is connected to a manual operation system.

Preferably in any one of the above schemes, the EHA electro-hydraulic execution system is composed of an integrated electro-hydraulic power unit, a hydraulic cylinder, a connection fixing plate and an oil pressure monitoring sensor, the connection fixing plate is fixedly connected with the integrated power unit and the hydraulic cylinder, and the oil pressure monitoring sensor is installed on an interface of the connection fixing plate.

In any of the above schemes, preferably, the node base system includes a left node base, a right node base, a node base adjusting rod and a node base fixing plate, and the left node base and the right node base are fixed on the node base fixing plate through bolts.

In any of the above schemes, preferably, a first projection and a second projection are fixedly arranged on the side of the left node base and the right node base in the node base system, which is adjacent to the action rod mechanism and the indication rod mechanism, along the radial direction of the adjustment rod of the node base, a second groove is formed in the indication rod mechanism, and the second groove is respectively matched with the second projection and the first groove and the first projection.

Preferably, in any of the above schemes, the manual operation system includes a manual rotating shaft assembly, a horizontal pushing block assembly, a manual rotating block and a shifting fork, the manual rotating shaft assembly is fixedly connected with the manual rotating block, the manual rotating block is slidably connected with the horizontal pushing block assembly, the manual rotating block is abutted against the shifting fork, and the shifting fork is connected with the action rod mechanism through a clamping groove.

The invention also discloses a working method of the action rod mechanism of the buried electro-hydraulic switch machine, which comprises the following steps;

(1) under the power-on state, the EHA electro-hydraulic execution system is driven to drive the hydraulic cylinder to operate, the starting mechanism is driven to move, and the action rod mechanism is further pushed;

(2) the starting mechanism drives the locking block to be separated from a locking state, and then drives the action rod to do transverse movement, so as to pull the switch tongue and change the opening direction of the switch;

(3) after the turnout opening direction is completed, the starting mechanism can continue to move, the locking block is rotated to complete locking and moves out of the corresponding locking safety size, at the moment, the starting mechanism pulls the quick-acting piece to move, the starting mechanism is enabled to coincide with the first groove, and the control system controls the EHA hydraulic driving unit to stop working.

Specifically, the working principle of the action lever mechanism of the invention is as follows:

a hydraulic driving unit in the switch machine is clamped on a driving mechanism of the action rod mechanism, and the control system controls an oil cylinder of the EHA hydraulic driving unit to reciprocate in a power-on state. The driving mechanism of the action rod mechanism starts to act along with the hydraulic cylinder, the driving mechanism drives the locking block on the action rod sleeve to start unlocking, and starts to walk the hollow stroke in the oblong hole on the quick action plate, so that the node seat inspection column of the point switch is synchronously jacked up, and the node seat makes an indication loop of action rod unlocking. After the locking block is unlocked, the driving mechanism drives the locking block, the locking block pulls the actuating rod sleeve to move towards the moving direction of the hydraulic cylinder, and the actuating rod pulls the turnout switch rail along with the actuating rod to start changing the turnout opening direction.

When the point rail is pulled by the action rod to finish the turnout stroke, the turnout opening direction is converted, the driving mechanism continues to move, the locking block is separated from the driving mechanism, and the turnout enters a locking state. After the driving mechanism runs the locking stroke, the notch of the quick acting piece is aligned to the inspection column of the node seat, the inspection column of the node seat falls into the notch of the quick acting piece, the node seat represents that the action of the action rod is finished, and the control system controls the EHA hydraulic driving unit to stop working.

When power is off, the driving mechanism of the action rod mechanism is directly pulled by the manual mechanism to do reciprocating motion, so that the motion process is achieved, and the change and the locking of the starting direction of the turnout are completed.

The invention also discloses a working method of the action rod mechanism of the buried electro-hydraulic switch machine, under the power failure state, the driving mechanism of the action rod mechanism is directly pulled by the manual mechanism to do reciprocating motion, the moving process in the previous moving method is achieved, and the change and the locking of the starting direction of the turnout are completed.

The invention also provides a buried electro-hydraulic switch machine, which comprises the action rod mechanism, a switch machine shell, an EHA electro-hydraulic execution system, a display rod mechanism, a node seat system and a manual operation system, wherein the EHA electro-hydraulic execution system is fixed on a corresponding mounting seat of the switch machine shell, the action rod mechanism is inserted in a corresponding through hole of the switch machine shell, the action rod mechanism comprises a starting mechanism, the starting mechanism is clamped on the EHA electro-hydraulic execution system, the display rod mechanism is mounted at a corresponding mounting position of the switch machine shell, the node seat system is fixed on the mounting seat of the switch machine shell, the node seat system is positioned between the action rod mechanism and the display rod mechanism, and the manual operation system is connected with the action rod mechanism.

Through adopting above-mentioned technical scheme, at whole formula of burying electric liquid goat moving in-process, power drive EHA electric liquid actuating system carries out reciprocating motion, and then drive actuating mechanism and carry out the round trip movement, and make whole action bar mechanism along the length direction reciprocating motion of action bar mechanism thereupon, when moving to suitable position, action bar mechanism all carries out the block with node seat system with showing the pole mechanism, action bar mechanism stop motion explains that action bar mechanism has moved to suitable position, the function of whole formula of burying electric liquid goat is accomplished, the structural design of this formula of burying electric liquid goat is simple, easy operation, the operating efficiency of whole platform equipment is also higher, the road traffic's of being convenient for use more use.

Further preferred according to the invention are: EHA electricity liquid actuating system comprises integral type electricity liquid power pack, pneumatic cylinder, connection fixed plate and oil pressure monitoring sensor, connect fixed plate fixed connection integral type power pack with the pneumatic cylinder, oil pressure monitoring sensor install in connect on the interface of fixed plate.

Through adopting above-mentioned technical scheme, in the middle of the project organization of whole formula electro-hydraulic switch machine that buries, this integral type electro-hydraulic power unit is by oily formula motor, built-in valve block group, the oil tank is integrated as whole module, and the pneumatic cylinder is two piston rod pneumatic cylinders moreover, and the piston rod is fixed on connecting the fixed plate, and reciprocating motion is to the cylinder, has the oil circuit intercommunication in the connection fixed plate, oil circuit intercommunication integral type power unit and pneumatic cylinder, reciprocating motion is to the cylinder of oily formula motor drive pneumatic cylinder, and then drives actuating mechanism's motion, impels whole action lever mechanism function. The EHA electro-hydraulic actuating system adopts oil-immersed motor drive, and the motor is immersed in the oil tank, realizes the structure of pump valve integral type to reduced the oil pipe connection, wholly sealed good, leak-free, the fault point is few, and moreover, the oil pressure monitoring sensor has the monitoring function to whole formula electro-hydraulic switch machine of burying, but real-time supervision goat internal state.

Further preferred according to the invention are: the starting mechanism is clamped with a cylinder barrel of the hydraulic cylinder.

By adopting the technical scheme, the cylinder barrel of the oil-immersed motor driving hydraulic cylinder in the integrated electro-hydraulic power unit does reciprocating motion, and the cylinder barrel of the hydraulic cylinder further drives the starting mechanism to move due to the fact that the starting mechanism is connected with the cylinder barrel of the hydraulic cylinder in a clamped mode, and the whole action rod mechanism is further promoted to operate. The design structure is simple, the complexity of the structural design of the whole buried electro-hydraulic switch machine is reduced, the implementation is convenient, and the operation efficiency of the whole device is higher.

Further preferred according to the invention are: the actuating rod mechanism further comprises an actuating rod, an actuating rod sleeve, an extruding-releasing mechanism, a locking block and a quick-acting piece, wherein a first groove is formed in the quick-acting piece, the actuating rod penetrates through the actuating rod sleeve and is fixed by the extruding-releasing mechanism, the locking block is fixed on the actuating rod sleeve, and the quick-acting piece is fixed on the starting mechanism through a pin shaft.

By adopting the technical scheme, the action rod penetrates through the switch machine shell, the inner part of the shell is sealed by the Y-shaped sealing ring and the wool felt, the starting mechanism is connected with the cylinder barrel of the hydraulic cylinder, and the locking block is fixed on the action rod sleeve. In the whole operation process, the cylinder barrel of the hydraulic cylinder drives the starting mechanism to move, the locking block is designed to have a good limiting effect, the starting mechanism moves to a proper position, and the whole action rod mechanism can stop immediately due to the limiting effect of the locking block, so that the whole buried electro-hydraulic point switch is designed to have higher operation efficiency and accuracy.

Further preferred according to the invention are: the node seat system comprises a left node seat, a right node seat, a node seat adjusting rod and a node seat fixing plate, wherein the left node seat and the right node seat are fixed on the node seat fixing plate through bolts.

By adopting the technical scheme, in the middle of the whole buried electro-hydraulic switch machine, the left node seat and the right node seat are fixed on the node seat fixing plate through bolts, the travel of the buried electro-hydraulic switch machine is adjustable due to the arrangement of the node seat adjusting rod, the travel of the buried electro-hydraulic switch machine is adjustable by adjusting the position of the indicating rod in the indicating rod mechanism and adjusting the node seat adjusting rod of the node seat system, and the buried electro-hydraulic switch machine can be adjusted by 40-80 mm, so that the application range of the switch machine is larger.

Further preferred according to the invention are: a first projection and a second projection are fixedly arranged on the sides, adjacent to the action rod mechanism and the indication rod mechanism, of the left node seat and the right node seat in the node seat system along the radial direction of the node seat adjusting rod, a second groove is formed in the indication rod mechanism, and the second groove is matched with the second projection and the first groove is matched with the first projection respectively.

Through adopting above-mentioned technical scheme, at the in-process of whole formula of burying electric liquid goat operation, when action bar mechanism operates a certain position, lug two can the joint to the recess two, the lug is in the joint to recess one for a moment, make whole action bar mechanism with show that the pole mechanism stops operating, also explain action bar mechanism through showing the pole mechanism simultaneously and move to suitable position, this design simple structure, make people notice the whole formula of burying electric liquid goat's operation phenomenon more easily, the operation accuracy that makes formula of burying electric liquid goat is higher.

Further preferred according to the invention are: the manual operation system comprises a manual rotating shaft assembly, a horizontal push block assembly, a manual turning block and a shifting fork, and the shifting fork is connected with the action rod mechanism through a clamping groove.

Through adopting above-mentioned technical scheme, set up manual operation system, make buried formula electric liquid goat have functions such as electric control, manual control, under the circumstances of circular telegram, start EHA electric liquid actuating system, the action of drive hydraulic cylinder drives the action of action bar system, thereby the conversion switch position, also can be under the outage state, with special crowbar sled manual operation system, the action of drive action bar system also can reach the function of conversion switch position, make the functional stronger of whole buried formula electric liquid goat, obtain more extensive application.

In conclusion, the invention has the following beneficial effects: the action rod mechanism of the buried electro-hydraulic switch machine, the working method and the electro-hydraulic switch machine are simple in structure and reasonable in design, and comprise a switch machine shell, an EHA electro-hydraulic execution system, an action rod mechanism, a display rod mechanism, a node seat system and a manual operation system, wherein the EHA electro-hydraulic execution system is fixed on a corresponding mounting seat of the switch machine shell, the action rod mechanism is inserted in a corresponding through hole of the switch machine shell, the action rod mechanism comprises a starting mechanism, the starting mechanism is clamped on the EHA electro-hydraulic execution system, the power of the starting mechanism is driven by hydraulic pressure, the connection structure is simple, the reliability is high, the maintenance workload is small, and a locking area is visible by eye observation. The buried electro-hydraulic switch machine is simple in structural design and easy to operate, the operating efficiency of the whole device is higher, and the buried electro-hydraulic switch machine is more convenient to use for road traffic.

Drawings

Fig. 1 is an overall schematic diagram of a preferred embodiment of the action rod mechanism of the buried electro-hydraulic switch machine of the invention;

FIG. 2 is a schematic diagram of an EHA electro-hydraulic actuating system of a preferred embodiment of the action rod mechanism of the buried electro-hydraulic switch machine;

FIG. 3 is a schematic diagram of an action rod mechanism of the buried electro-hydraulic switch machine;

FIG. 4 is a schematic representation of a preferred embodiment of the action bar mechanism of the buried electro-hydraulic switch machine of the present invention;

fig. 5 is a schematic view of a node seat system of a preferred embodiment of the action rod mechanism of the buried electro-hydraulic switch machine;

FIG. 6 is a schematic diagram of a manual operation system of a preferred embodiment of the action rod mechanism of the buried electro-hydraulic switch machine;

FIG. 7 is a schematic diagram of the action rod unlocking state of the action rod mechanism of the buried electro-hydraulic switch machine;

FIG. 8 is a schematic diagram of the motion state of the action rod mechanism of the buried electro-hydraulic switch machine;

fig. 9 is a schematic view of the locking state of the action rod mechanism of the buried electro-hydraulic switch machine. The reference signs are:

1. a switch machine casing; 2. an EHA electro-hydraulic execution system; 3. an action lever mechanism; 4. a presentation lever mechanism; 5. a node base system; 6. a manually operated system; 21. an electro-hydraulic power unit; 22. a hydraulic cylinder; 23. connecting the fixed plate; 24. an oil pressure monitoring sensor; 31. an action lever; 32. an action rod sleeve; 33. an extruding and separating mechanism; 34. a locking block; 35. a starting mechanism; 36. a snap-action tab; 37. a first groove; 41. a second groove; 51. a left node mount; 52. a right node base; 53. a node base adjusting rod; 54. a node base fixing plate; 61. a manual spindle assembly; 62. a horizontal push block assembly; 63. a shifting fork; 64. the rotating block is turned by hand.

Detailed Description

The technical solution of the present invention is further illustrated by the following specific examples. The following examples are intended only to provide a possible solution and are not intended to limit the invention.

A buried electro-hydraulic switch machine is shown in figure 1 and comprises a switch machine shell 1, an EHA electro-hydraulic execution system 2, an action rod mechanism 3, a display rod mechanism 4, a node seat system 5 and a manual operation system 6, wherein the EHA electro-hydraulic execution system 2 is fixed on a corresponding mounting seat of the switch machine shell 1, the action rod mechanism 3 is inserted in a corresponding through hole of the switch machine shell 1, the action rod mechanism 3 comprises a starting mechanism 35, the starting mechanism 35 is clamped on the EHA electro-hydraulic execution system 2, the display rod mechanism 4 is installed at a corresponding mounting position of the switch machine shell 1, the node seat system 5 is fixed on the mounting seat of the switch machine shell 1 between the action rod mechanism 3 and the display rod mechanism 4, and the manual operation system 6 is connected with the action rod mechanism 3. In the operation process of the whole buried electro-hydraulic switch machine, the EHA electro-hydraulic actuating system 2 drives the starting mechanism 35 to move, and then the whole action rod mechanism 3 reciprocates along the length direction of the action rod mechanism 3, when the action rod mechanism 3 and the indication rod mechanism 4 are clamped with the node seat system 5 when the action rod mechanism moves to a proper position, the action rod mechanism 3 is indicated to have moved to an accurate position, the action rod mechanism 3 stops moving, and the operation of the whole buried electro-hydraulic switch machine is completed. The buried electro-hydraulic switch machine is simple in structural design and easy to operate, the operating efficiency of the whole device is higher, and the use of road traffic is facilitated.

As shown in fig. 2, the EHA electro-hydraulic actuator system 2 is composed of an integrated electro-hydraulic power unit 21, a hydraulic cylinder 22, a connection fixing plate 23 and an oil pressure monitoring sensor 24, the connection fixing plate 23 is fixedly connected with the integrated power unit 21 and the hydraulic cylinder 22, and, in addition, as shown in fig. 1, a starting mechanism 35 is clamped with a cylinder barrel of the hydraulic cylinder 22, and the oil pressure monitoring sensor 24 is installed on an interface of the connection fixing plate 23. This integral type electricity liquid power unit 21 is by oily formula motor, built-in valve block group, the oil tank is integrated as whole module, and pneumatic cylinder 22 is the double-piston rod pneumatic cylinder, the piston rod is fixed on connecting fixed plate 23, and the cylinder is reciprocating motion, there is the oil circuit intercommunication in connecting fixed plate 23, oil circuit intercommunication integral type power unit 21 and pneumatic cylinder 22, the cylinder of oily formula motor drive pneumatic cylinder 22 is reciprocating motion, and then drive actuating mechanism 35's motion, make whole action bar mechanism 3 function, EHA electricity liquid actuating system 2 adopts oily formula motor drive, inside the motor immerses the oil tank, the oil pipe connection has been reduced, the whole is sealed well, no leakage, the fault point is few. The oil pressure monitoring sensor 24 has a monitoring function for the whole operating ground-buried electro-hydraulic switch machine, and can monitor the internal state of the switch machine in real time.

As shown in fig. 3, the actuating lever mechanism 3 includes an actuating lever 31, an actuating lever sleeve 32, an extruding mechanism 33, a locking block 34, and a snap piece 36. The first groove 37 is formed in the quick acting piece 36, the action rod 31 penetrates through the action rod sleeve 32 and is fixed by the squeezing mechanism 33, two ends of the action rod 31 penetrate through the switch machine shell 1 and are sealed by a Y-shaped sealing ring and a wool felt to ensure that the inside of the switch machine shell 1 is sealed, the locking block 34 is fixed on the action rod sleeve 32, and the quick acting piece 36 is fixed on the starting mechanism 35 through a pin shaft. When the switch machine operates, the cylinder barrel of the hydraulic cylinder 22 drives the starting mechanism 35 to move, the locking block 34 is designed to play a good limiting role in the movement of the starting mechanism 35, so that the starting mechanism 35 stops immediately when moving to a proper position, and the operating efficiency and the accuracy of the whole buried electro-hydraulic switch machine are higher.

As shown in fig. 5, the node base system 5 includes a left node base 51, a right node base 52, a node base adjusting rod 53 and a node base fixing plate 54, wherein the left node base 51 and the right node base 52 are fixed on the node base fixing plate 54 by bolts, and a first projection and a second projection are fixedly arranged on the sides of the left node base 51 and the right node base 52 in the node base system 5, which are adjacent to the action rod mechanism 3 and the indication rod mechanism 4, along the radial direction of the node base adjusting rod 53, and as shown in fig. 3 and 4, a second groove 41 is formed on the indication rod mechanism 4, and the second groove 41 is matched with the second projection and the first groove 37 respectively. In the whole operation process of the buried electro-hydraulic switch machine, when the action rod mechanism 3 operates to a certain position, the second projection is clamped into the second groove 41, and the first projection is correspondingly clamped into the first groove 37, so that the whole action rod mechanism 3 and the indication rod mechanism 4 stop operating, and the action rod mechanism 3 is also explained to operate to a proper position through the indication rod mechanism 4. The design structure is simple, people can easily notice the operation phenomenon of the whole buried electro-hydraulic switch machine, and the operation accuracy of the buried electro-hydraulic switch machine is higher.

The working principle of the buried electro-hydraulic switch machine and the working rod mechanism is as follows:

in a power-on state, a power supply from a turnout control enters the interior of a switch machine shell 1 through a cable to drive a motor in the EHA electro-hydraulic execution system 2, the motor drives a hydraulic cylinder 22 to operate and further drives a starting mechanism 35 to act along with the hydraulic cylinder so as to push the motion of an action rod mechanism 3, the starting mechanism 35 drives a locking block 34 to unlock and separate from a locking state, and starts to walk a hollow stroke in a long circular hole on a quick action plate, a node seat inspection column of the switch machine is synchronously jacked up, and the node seat makes an indication loop of action rod unlocking.

After the locking block is unlocked, the driving mechanism drives the locking block, the locking block pulls the actuating rod sleeve to move towards the moving direction of the hydraulic cylinder, and then the actuating rod 31 is driven to move transversely to pull the switch tongue, so that the opening direction of the switch is changed.

When the point rail is pulled by the action rod to finish the turnout movement, the turnout opening direction is converted, at the moment, the starting mechanism 35 continues to move, the locking block 34 is separated from the starting mechanism 35, and the turnout enters a locking state. After the driving mechanism runs through the locking stroke, the notch of the quick acting piece 36 is aligned with the node seat inspection column, the node seat inspection column falls into the notch of the quick acting piece 36, the node seat 36 indicates that the action of the action rod is finished, and the control system controls the EHA hydraulic driving unit to stop working.

When power is off, the driving mechanism of the action rod mechanism is directly pulled by the manual mechanism to do reciprocating motion, so that the motion process is achieved, and the change and the locking of the starting direction of the turnout are completed.

Specifically, when the operating rod 31 pulls the switch tongue to change the opening direction of the switch, the tongue will drive the indication rod mechanism 4 to move transversely, and the second groove 41 will move to the corresponding position to be indicated. After the turnout opening direction is completed, the starting mechanism 35 will continue to move, the locking block 34 is rotated to complete locking and move out of the corresponding locking safety size, at the moment, the starting mechanism 35 will pull the quick-acting piece 36 to move, so that the starting mechanism 35 is overlapped with the first groove 37, after the turnout opening direction is reached, the inspection column of the node base system 5 is quickly ejected out through an internal spring and is respectively driven into the first groove 37 and the second groove 41, the node switch of the node base system 5 completes reversing, accurate indication of turnout opening change completion is made, and the system is controlled to be powered off, so that turnout obtaining state inspection is realized, and the turnout obtaining state inspection is a schematic diagram of unlocking, moving and locking states of the action rod as shown in figures 7-9.

When the locking block 34 is in the locking state, the action rod 31 cannot move, so that the reliability and the display accuracy of the switch in close contact are ensured. When an external force impacts the action rod 31, the extrusion mechanism 33 is pressed in the conical groove of the action rod 31, and the extrusion mechanism 33 has certain pre-pressure, so that a part of impact force can be absorbed, and the impact resistance of the locking unit is improved. When the external force exceeds the set pressure, the push-off pin in the push-off mechanism 33 is pushed off from the inside of the actuating rod 31, so that the actuating rod 31 is in a free state, and the switch push-off meter can be realized by matching the indicating rod mechanism 4 and the node base system 5. Under the outage state, insert special crowbar in manual pivot subassembly 61's special interface, later through pulling the crowbar, manual pivot subassembly 61 is through driving horizontal ejector pad subassembly 62 translation, and then drives shift fork 63 and be the swing action to promote actuating mechanism 35 motion, realize the manual operation function of goat.

The above are only preferred embodiments of the present invention, which are intended to show the outstanding technical effects and advantages of the present invention, and are not intended to limit the technical solutions of the present invention. It should be understood by those skilled in the art that all modifications, changes or alternative technical features made based on the technical contents of the present invention should be included in the technical scope of the appended claims.