Split locking oil cylinder for railway turnout switch machine

Abstract

The invention relates to a split locking oil cylinder for a railway turnout switch machine, which relates to the technical field of hydraulic transmission devices of railway turnout switch machines and comprises an action oil cylinder group, an oil circuit board group and a locking oil cylinder group, an action block is arranged between the action oil cylinder group and the locking oil cylinder group, is connected with an action rod of the switch machine, and is used for driving the switch rail to move; the action oil cylinder group comprises a fixed rod and a main oil cylinder; the fixing rod is horizontally arranged, and the main oil cylinder is slidably arranged on the fixing rod in a sleeving mode. A first limiting plate is fixedly arranged on the side, close to the locking oil cylinder set, of the main oil cylinder, a first limiting groove is formed in the side, close to the main oil cylinder, of the action block, and the first limiting plate is clamped in the first limiting groove all the time. The oil way plate set comprises a main oil way plate and an auxiliary oil way plate. The locking oil cylinder set comprises a first locking oil cylinder, a second locking oil cylinder, a movable rod and a locking part. According to the split locking oil cylinder for the railway turnout switch machine, the compact design of the split locking oil cylinder for the railway turnout switch machine is achieved, and the occupied space is remarkably reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic transmission devices for railway turnout switch machines, and in particular to a split locking cylinder for railway turnout switch machines. Background Art

[0002] In the field of railway switch technology, it is mainly divided into electric switch and electro-hydraulic switch according to the drive form. Electro-hydraulic switch is widely used in railway systems due to its reliability and stability, especially in high-demand scenarios such as high-speed railways and heavy-load railways. This type of switch uses an electric motor to drive the oil pump to generate high-pressure oil to push the hydraulic cylinder to complete the switching and locking functions of the turnout. However, with the continuous development of the railway transportation system, the space utilization and performance requirements of the switch are getting higher and higher, which has prompted the industry to continuously explore new design solutions and technical improvement measures to improve the overall performance and adaptability of the switch.

[0003] Existing electro-hydraulic switch machines usually use an integrated hydraulic cylinder to achieve the switching and locking functions of the turnout. Specifically, the high-pressure oil generated by the motor-driven oil pump enters the hydraulic cylinder, and the reciprocating motion of the hydraulic cylinder drives the action rod of the switch machine to switch, and the locking is achieved through the structure of the hydraulic cylinder itself. Common technical means include using a single large hydraulic cylinder, or a complex internal structure design to achieve the switching and locking functions. In addition, there is also a method of gradually transmitting power through the design of a multi-stage oil cylinder to achieve precise control of the turnout. Although these methods meet the actual application needs to a certain extent, there are still major problems in terms of space occupation.

[0004] However, the above-mentioned prior art has obvious shortcomings in practical application, especially in terms of occupied space. Since the integrated hydraulic cylinder needs to undertake both conversion and locking functions, its structure is complex and bulky, occupying a large installation space. This not only limits the application of the switch machine in a small environment, but also increases the difficulty of maintenance and overhaul. Therefore, how to effectively reduce the occupied space of the switch machine while ensuring its performance has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to solve the technical problem of how to effectively reduce the space occupied by the hydraulic cylinder while ensuring the performance of the switch machine, the present application provides a split locking cylinder for a railway turnout switch machine.

[0006] The present application provides a split locking cylinder for a railway turnout switch machine, which adopts the following technical solution: A split locking oil cylinder for a railway turnout switch machine comprises an actuating oil cylinder group, an oil circuit board group and the locking oil cylinder group; an actuating block is arranged between the actuating oil cylinder group and the locking oil cylinder group, the actuating block is connected to the actuating rod of the switch machine, and the actuating block is used to drive the point rail to move; the actuating oil cylinder group comprises a fixing rod and a main oil cylinder; the fixing rod is arranged horizontally, and the main oil cylinder is slidingly sleeved on the fixing rod; a first limiting plate is fixedly arranged on a side of the main oil cylinder close to the locking oil cylinder group, and a first limiting groove is provided on a side of the actuating block close to the main oil cylinder, the size of the first limiting groove is adapted to the size of the first limiting plate, and the main oil cylinder is provided with a first limiting groove. The first limit plate is always clamped in the first limit groove; the oil circuit plate group includes a main oil circuit plate and an auxiliary oil circuit plate; the auxiliary oil circuit plate is vertically arranged and two are provided, the main oil circuit plate is horizontally arranged, the main oil circuit plate is fixedly arranged between the two auxiliary oil circuit plates, and the main oil circuit plate is located above the fixed rod; two oil inlet holes are opened on the top of the main oil circuit plate, two first oil circuits are provided in the main oil circuit plate, each of the oil inlet holes is connected to one of the first oil circuits, and each of the first oil circuits is connected to one of the auxiliary oil circuit plates at one end away from the oil inlet hole; the locking cylinder group includes a first locking cylinder, a second locking cylinder, and a movable rod and a locking part; the first locking oil cylinder is horizontally arranged and is provided with two, each of which is fixedly connected to one of the auxiliary oil circuit plates; the second locking oil cylinder is coaxially arranged with the first locking oil cylinder, and the second locking oil cylinder is fixedly arranged between the two first locking oil cylinders; the movable rod is also coaxially arranged with the first locking oil cylinder, and the movable rod is slidably connected with the second locking oil cylinder along the length direction of the second locking oil cylinder, and both ends of the movable rod are located in the first locking oil cylinder; both ends of the movable rod are fixedly sleeved with pistons, and the pistons are slidably arranged in the first locking oil cylinder, and the pistons, A first cavity is formed between the inner side wall of the first locking oil cylinder and the auxiliary oil circuit plate; the locking portion is arranged in the middle position of the movable rod and is located on a side close to the action block, and the locking portion is used to lock the action block; when the locking portion is in a locked state, the action block and the main oil cylinder cannot move, and when the locking portion is in an unlocked state, the action block and the main oil cylinder can move; when the movable rod moves from a side close to one of the first locking oil cylinders toward a side close to another of the first locking oil cylinders, the locking portion can switch from a locked state to an unlocked state, and then to a locked state.

[0007] By adopting the above technical scheme, a compact design of the split locking cylinder for railway turnout switch machines is achieved, which significantly reduces the occupied space. Specifically, the design of the action block between the action cylinder group and the locking cylinder group makes the movement of the main cylinder more precise and smooth, and improves the operation reliability of the switch machine. The design of the first limit plate and the first limit groove ensures a stable connection between the main cylinder and the action block, avoids the risk of dislocation under high-pressure oil drive, and improves the reliability of the system. The double-layer design of the oil circuit plate group and the reasonable layout of multiple oil circuits ensure the efficient circulation of oil and improve the response speed and stability of the system. The double-piston design of the locking cylinder group and the ingenious structure of the locking part can not only lock and unlock the action block in different states, but also ensure that the switch machine can be stably locked after the conversion is in place, ensuring the normal operation of the switch machine. The working principle is: in the initial state, one point rail is in a close contact state, the other point rail is in a repelling state, the locking part is in a locked state, the main oil cylinder is located on the side close to one of the auxiliary oil circuit boards, and the movable rod is located on the side close to the other auxiliary oil circuit board; when the switch machine is working, high-pressure oil is first injected into one of the oil inlet holes, and the high-pressure oil flows into an auxiliary oil circuit board through the corresponding first oil circuit, and then flows into the fixed rod and the first cavity in the first locking oil cylinder after passing through the auxiliary oil circuit board. Since they are in a locked state at this time, the main oil cylinder and the action block cannot move; after the high-pressure oil entering the first cavity fills the first cavity, it drives the corresponding piston to move in the direction close to the other piston, and drives the movable rod to move in the same direction, and the movable rod drives the locking part to switch to an unlocked state; at this time, the main oil cylinder and the action block can move, and under the action of the high-pressure oil, the main oil cylinder and the action block can move. The cylinder moves in the direction of the auxiliary oil circuit plate away from the side of the main oil cylinder, and the action block also moves in the same direction through the cooperation of the first limit plate and the first limit groove, and the action block drives the point rail to move and convert, and both point rails are in a conversion state; until the main oil cylinder abuts against the auxiliary oil circuit plate on the other side, at this time, the two point rails are converted into place, completing the conversion of one point rail from a close fit state to a repulsive state, and the other point rail from a repulsive state to a close fit state. At the same time, the main oil cylinder and the action block cannot move further, and the high-pressure oil in the first cavity in the first locking oil cylinder continues to push the corresponding piston to move in the direction close to the other piston, driving the movable rod to continue to move, driving the locking part back to the locked state, so that one point rail is converted from a close fit state to a repulsive state, and the other point rail is converted from a repulsive state to a close fit state, thereby completing the whole process of point rail conversion.

[0008] Optionally, a second oil circuit is provided in the auxiliary oil circuit plate, the middle of the second oil circuit is connected to the first oil circuit, one end of the second oil circuit is connected to the fixing rod, and the other end is connected to the first cavity in the first locking cylinder.

[0009] By adopting the above technical solution, the effective distribution and transmission of high-pressure oil is achieved, ensuring the stability and reliability of the oil circuit system. Specifically, the second oil circuit in the auxiliary oil circuit board is connected with the first oil circuit of the main oil circuit board, so that the high-pressure oil can smoothly enter the auxiliary oil circuit board from the main oil circuit board, and then connect with the fixed rod through one end of the second oil circuit, ensuring that the oil circuit system is unobstructed in the entire device. At the same time, the other end of the second oil circuit is connected with the first cavity in the first locking cylinder, ensuring that the high-pressure oil can accurately reach the locking cylinder group, thereby realizing precise control of the locking function. This not only improves the working efficiency of the entire device, but also effectively reduces the risk of oil circuit blockage and improves the reliability and safety of the system.

[0010] Optionally, a baffle is fixedly connected at the middle position of the outer wall of the fixed rod, and the baffle is in a circular ring shape. The baffle is always located in the master oil cylinder and divides the master oil cylinder into two second cavities. A third oil circuit is provided in the fixed rod, and two third oil circuits are provided, and one end of each of the third oil circuits is connected to one of the second oil circuits, and the other end is connected to one of the second cavities.

[0011] By adopting the above technical solution, the design of the baffle can ensure that the internal space of the master cylinder is reasonably divided, ensuring that the cylinder can move stably during operation. The design of the third oil circuit enables the oil to flow efficiently inside the fixed rod, so that when the high-pressure oil enters the fixed rod, it can flow into one of the second cavities through the third oil circuit, filling the second cavity and pushing the master cylinder to move in a direction away from the other second cavity.

[0012] Optionally, a plurality of fourth oil circuits are provided in the fixed rod, and the fourth oil circuits are arranged at one end of the third oil circuit away from the second oil circuit, and the fourth oil circuits are evenly distributed along the circumference of the fixed rod, and the length direction of the fourth oil circuit is the radial direction of the fixed rod; one end of the fourth oil circuit is connected to the third oil circuit, and the other end is connected to the second cavity.

[0013] By adopting the above technical solution, multiple fourth oil circuits are evenly distributed along the circumference of the fixed rod, ensuring that the oil is evenly distributed from the fixed rod to the main oil cylinder, improving the stability and reliability of the oil flow, thereby ensuring the balance of the oil pressure inside the main oil cylinder and enhancing the stability of the movement of the main oil cylinder. In addition, the setting of the fourth oil circuit also reduces the resistance of the oil flow, reduces the system energy consumption, and improves the efficiency of the entire system.

[0014] Optionally, a slide groove is provided at a middle position of one side of the movable rod near the action block, the length direction of the slide groove is parallel to the length direction of the movable rod, and a boss is fixedly provided at the middle position of the groove bottom of the slide groove; two connecting grooves are provided on the side wall of the second locking oil cylinder near the action block, and the connecting groove is connected with the slide groove on the side near the movable rod; the locking part includes two rollers, and each of the rollers is arranged in one of the connecting grooves and can slide in the slide groove; two second limiting grooves are provided on the side of the action block near the second locking oil cylinder, and the roller can be clamped in the second limiting groove; when the locking part is in a locked state, one of the rollers is clamped in the second limiting groove, and the side of the roller away from the action block abuts against the boss, and the other roller is located in the slide groove, and the action block cannot move at this time; when the locking part is in an unlocked state, the two rollers are both located in the slide groove, and the action block can move at this time.

[0015] By adopting the above technical solution, precise control of the locking part is achieved. Specifically, when the locking part is in the locked state, one of the rollers is clamped in the second limit groove and abuts against the boss to ensure that the action block cannot move, thereby ensuring that the action rod of the switch machine is stably and reliably maintained in the specified position. When the locking part is in the unlocked state, both rollers are located in the slide groove, so that the action block can move freely, which is convenient for the switch machine to perform switching operations. This design not only improves the reliability of locking and unlocking, but also simplifies the structure and reduces the occupied space. Its working principle is as follows: in the initial state, the locking part is in a locked state, one roller is located in a second limit groove, and the other roller is located in the slide groove; when the movable rod moves under the action of the piston, it can drive the boss to move, so that the boss moves to between the two rollers. At this time, the roller located in the second limit groove is out of the locked state, and the action block can move under the action of the main oil cylinder. When the action block moves, the roller initially located in the second limit groove can be out of the second limit groove and enter the slide groove; until the action plate and the main oil cylinder move to a position where they cannot move, the high-pressure oil in the first cavity continues to push the piston and the movable rod to move, driving the boss to move to the side of the other roller away from the action block, so that the roller is clamped in the other second limit groove, even if the locking part is switched back to the locked state.

[0016] Optionally, two sides of the boss are inclined, and the side walls on two sides of the second limiting groove are also inclined.

[0017] By adopting the above technical solution, the inclined design on both sides of the boss enables, when the movable rod moves, the roller can move from the slide groove to between the boss and the action block through the inclined settings on both sides of the boss, and can also move from the boss to the slide groove; the inclined design on both sides of the second limiting groove enables the roller to detach from or enter the second limiting groove through the inclined design on both sides of the second limiting groove; the reliability and convenience of the roller movement are improved.

[0018] Optionally, two positioning wheels are fixedly sleeved on the outer wall of the roller, two first positioning grooves are opened on the inner wall of the connecting groove, and the positioning wheel is arranged in the first positioning groove; two second positioning grooves are opened on the inner wall of the second limiting groove, and when the roller is clamped in the second limiting groove, the positioning wheel can be located in the second positioning groove.

[0019] By adopting the above technical scheme, the position of the roller can be limited by the positioning wheel; by setting the first positioning groove, the moving range of the roller is limited, so that the roller cannot move axially in the connecting groove, thereby improving its stability; by setting the second positioning groove, the moving range of the roller is further limited, and when the roller is clamped in the second limiting groove, the positioning wheel is located in the second positioning groove, so that the roller cannot move axially in the second limiting groove, thereby further improving its stability.

[0020] Optionally, a third positioning groove is provided on the side wall of the action block close to the second locking cylinder; when the locking part is in an unlocked state, the roller is located in the slide groove, and the side of the positioning wheel close to the action block is located in the third positioning groove.

[0021] By adopting the above technical solution, the moving range of the roller is further limited and its stability is improved. Through the design of the third positioning groove, when the roller slides in the slide groove, the side of the roller close to the action block abuts against the action block, and the positioning wheel is located in the third positioning groove, which prevents the roller from deviating in the axial direction and further improves its stability.

[0022] Optionally, a contact group is provided above the locking cylinder assembly, and an action plate is fixedly connected to the top center of the movable rod, and the action plate is used to transmit signals to the contact group.

[0023] By adopting the above technical scheme, the locking cylinder can not only control the locking and conversion of the point rail, but also transmit the locking and conversion status signals to the contact group through the action board, and then display them through the contact group; when the movable rod drives the locking group to be in a locked state, one point rail is in a close contact state, and the other point rail is in a repelled state, the action board transmits the locking status signal to the contact group, and displays it through the contact group; when the movable rod drives the locking group to be in an unlocked state, both point rails are in a conversion state, the action board transmits the signal to the contact group, and displays it through the contact group.

[0024] Optionally, two rollers are provided at the bottom of the contact group, and two inclined surfaces are provided on both sides of the top of the action plate, and the rollers cooperate with the inclined surfaces.

[0025] By adopting the above technical solution, when the action plate moves, the cooperation between the inclined surface and the roller can drive the roller to be in different states, so as to transmit different signals to the contact group; in the initial state, one of the rollers is located on one side of the action plate and is in a locked state, and the other roller is located above the action plate and abuts against the action plate. At this time, the locking part is in a locked state, one point rail is in a close contact state, and the other point rail is in a repelling state. The signal received by the contact group is a signal that one point rail is in a close contact state and the other point rail is in a repelling state; when the action plate moves, it drives the locking part to switch to an unlocked state, and the point rail enters a switching state. At this time, the action plate is close to the lock state. The inclined surface on one side of the roller in the closed state abuts against the roller, driving the roller to move to the top of the action plate, so that both rollers are located at the top of the action plate. At this time, the action plate transmits signals that the locking part is in the unlocked state and both point rails are in the converted state; until the point rails complete the conversion from the close fit state to the repulsive state of one point rail and the conversion from the repulsive state to the close fit state of the other point rail, and the locking part returns to the locked state, one of the rollers is located on one side of the action plate again, and the other roller is located at the top of the action plate and abuts against the action plate. At this time, the action plate transmits signals that the locking part is in the locked state and the point rails are in the new repulsive state and close fit state after the conversion.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the setting of the action cylinder group, the oil circuit board group and the part cylinder group, the compact design of the split locking cylinder for railway turnout switch machine is realized, which significantly reduces the occupied space; 2. The design of the action block between the action cylinder group and the locking cylinder group makes the movement of the main cylinder more precise and stable, and improves the reliability of the switch machine. The design of the first limit plate and the first limit groove ensures the stable connection between the main cylinder and the action block, avoids the risk of dislocation under high-pressure oil drive, and improves the reliability of the system; 3. The double-layer design of the oil circuit board group and the reasonable layout of multiple oil circuits ensure the efficient circulation of oil and improve the response speed and stability of the system. The double-piston design of the locking cylinder group and the ingenious structure of the locking part can not only lock and unlock the action block in different states, but also ensure that the switch machine can be stably locked after the switch is in place, ensuring the normal operation of the switch machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a cross-sectional schematic diagram of an embodiment of the present application; Figure 3 It is a schematic diagram of the overall structure of another perspective of the embodiment of the present application; Figure 4 is a schematic longitudinal section diagram of the embodiment of the present application at the actuating cylinder group; Figure 5 is a schematic longitudinal section diagram of an embodiment of the present application at the auxiliary oil circuit board; Figure 6 yes Figure 4 A partial enlarged schematic diagram of part A; Figure 7 yes Figure 2 A partial enlarged schematic diagram of part B; Figure 8 yes Figure 3 A partial enlarged schematic diagram of part C in the middle; Fig. 9 yes Figure 7 A schematic diagram after removing a first roller and a positioning wheel; Fig.10 It is a cross-sectional schematic diagram of the main oil circuit board in this application.

[0028] Explanation of the reference numerals: 1, actuating cylinder group; 11, fixing rod; 111, third oil circuit; 112, fourth oil circuit; 113, baffle plate; 12, main oil cylinder; 121, second cavity; 13, first limit plate; 2, oil circuit plate group; 21, main oil circuit plate; 211, oil inlet hole; 212, first oil circuit; 22, auxiliary oil circuit plate; 221, second oil circuit; 3, locking cylinder group; 31, first locking cylinder; 311, first cavity cavity; 32, second locking cylinder; 321, connecting groove; 322, first positioning groove; 33, movable rod; 331, slide groove; 332, boss; 34, locking part; 341, roller; 342, positioning wheel; 35, piston; 4, action block; 41, first limiting groove; 42, second limiting groove; 43, second positioning groove; 44, third positioning groove; 5, contact group; 51, roller; 6, action plate; 61, inclined surface. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-8 This application is described in further detail.

[0030] The present application embodiment discloses a split locking cylinder for a railway turnout switch. Figure 1 and Figure 2 A split locking cylinder for a railway turnout switch machine comprises an actuating cylinder group 1, an oil circuit board group 2 and a locking cylinder group 3; an actuating block 4 is arranged between the actuating cylinder group 1 and the locking cylinder group 3, the actuating block 4 is connected to the actuating rod of the switch machine, and the actuating block 4 is used to drive the point rail to move; the actuating cylinder group 1 comprises a fixing rod 11 and a main oil cylinder 12; the fixing rod 11 is arranged horizontally, and the main oil cylinder 12 is slidably sleeved on the fixing rod 11; a first limiting plate 13 is fixedly arranged on one side of the main oil cylinder 12 close to the locking cylinder group 3, and a first limiting groove 41 is opened on one side of the actuating block 4 close to the main oil cylinder 12, the size of the first limiting groove 41 is adapted to the size of the first limiting plate 13, and the first limiting plate 13 is always clamped in the first limiting groove 41; the oil circuit board group 2 comprises a main oil circuit board 21 and an auxiliary oil circuit board 22.

[0031] Reference Figure 3 and Figure 4 The auxiliary oil circuit plate 22 is vertically arranged and has two of them, the main oil circuit plate 21 is horizontally arranged, the main oil circuit plate 21 is fixedly arranged between the two auxiliary oil circuit plates 22, and the main oil circuit plate 21 is located above the fixing rod 11; two oil inlet holes 211 are opened on the top of the main oil circuit plate 21, and two first oil circuits 212 are arranged in the main oil circuit plate 21, each oil inlet hole 211 is connected to a first oil circuit 212, and each first oil circuit 212 is connected to an auxiliary oil circuit plate 22 at one end away from the oil inlet hole 211.

[0032] Reference Figure 2 and Figure 3The locking cylinder group 3 includes a first locking cylinder 31, a second locking cylinder 32, a movable rod 33 and a locking portion 34; the first locking cylinder 31 is horizontally arranged and two are provided, each of which is fixedly connected to a secondary oil circuit board 22; the second locking cylinder 32 is coaxially arranged with the first locking cylinder 31, and the second locking cylinder 32 is fixedly arranged between the two first locking cylinders 31; the movable rod 33 is also coaxially arranged with the first locking cylinder 31, and the movable rod 33 is slidably connected to the second locking cylinder 32 along the length direction of the second locking cylinder 32, and both ends of the movable rod 33 are located in the first locking cylinder 31; both ends of the movable rod 33 are fixedly sleeved with pistons 35, and the pistons 35 are slidably arranged It is arranged in the first locking cylinder 31, and a first cavity 311 is formed between the piston 35, the inner wall of the first locking cylinder 31 and the auxiliary oil circuit plate 22; the locking portion 34 is arranged in the middle position of the movable rod 33 and is located on the side close to the action block 4, and the locking portion 34 is used to lock the action block 4; when the locking portion 34 is in a locked state, the action block 4 and the main cylinder 12 cannot move, and when the locking portion 34 is in an unlocked state, the action block 4 and the main cylinder 12 can move; when the movable rod 33 moves from the side close to one of the first locking cylinders 31 to the side close to the other first locking cylinder 31, the locking portion 34 can switch from a locked state to an unlocked state, and then switch to a locked state.

[0033] In the initial state, one point rail is in a close contact state, the other point rail is in a repelling state, the locking part 34 is in a locked state, the main oil cylinder 12 is located on the side close to one of the auxiliary oil circuit plates 22, and the movable rod 33 is located on the side close to the other auxiliary oil circuit plate 22; when the switch machine is working, high-pressure oil is first injected into one of the oil inlet holes 211, and the high-pressure oil flows into one of the auxiliary oil circuit plates 22 through the corresponding first oil circuit 212, and then flows into the fixed rod 11 and the first cavity 311 in the first locking oil cylinder 31 after passing through the auxiliary oil circuit plate 22. Since they are in a locked state at this time, the main oil cylinder 12 and the action block 4 cannot move; after the high-pressure oil entering the first cavity 311 fills the first cavity 311, it drives the corresponding piston 35 to move in the direction close to the other piston 35, and drives the movable rod 33 to move in the same direction, and the movable rod 33 drives the locking part 34 to switch to an unlocked state; at this time, the main oil cylinder 12 and the action block 4 can move. Under the action, the main oil cylinder 12 moves toward the auxiliary oil circuit plate 22 on the side away from the main oil cylinder 12, and the action block 4 also moves in the same direction through the cooperation of the first limit plate 13 and the first limit groove 41, and the action block 4 drives the point rail to move and convert, and the two point rails are in the conversion state; until the main oil cylinder 12 abuts against the auxiliary oil circuit plate 22 on the other side, at this time, the two point rails are converted into place, completing the conversion of one point rail from the close contact state to the repulsive state, and the other point rail from the repulsive state to the close contact state. At the same time, the main oil cylinder 12 and the action block 4 cannot continue to move, and the high-pressure oil in the first cavity 311 in the first locking oil cylinder 31 continues to push the corresponding piston 35 to move in the direction close to the other piston 35, driving the movable rod 33 to continue to move, and driving the locking part 34 back to the locked state, so that one point rail is converted from the close contact state to the repulsive state, and the other point rail is converted from the repulsive state to the close contact state, thereby completing the whole process of point rail conversion.

[0034] Reference Figure 2 and Figure 5 , a second oil circuit 221 is provided in the auxiliary oil circuit plate 22, the middle of the second oil circuit 221 is connected to the first oil circuit 212, one end of the second oil circuit 221 is connected to the fixed rod 11, and the other end is connected to the first cavity 311 in the first locking oil cylinder 31. The second oil circuit 221 in the auxiliary oil circuit plate 22 is connected to the first oil circuit 212 of the main oil circuit plate 21, so that the high-pressure oil can smoothly enter the auxiliary oil circuit plate 22 from the main oil circuit plate 21, and then communicate with the fixed rod 11 through one end of the second oil circuit 221, ensuring that the oil circuit system is unobstructed in the entire device. At the same time, the other end of the second oil circuit 221 is connected to the first cavity 311 in the first locking oil cylinder 31, ensuring that the high-pressure oil can accurately reach the locking oil cylinder group 3, thereby realizing precise control of the locking function. This not only improves the working efficiency of the entire device, but also effectively reduces the risk of oil circuit blockage, and improves the reliability and safety of the system.

[0035] Reference Figure 4 and Figure 6 A baffle 113 is fixedly connected at the middle position of the outer wall of the fixed rod 11. The baffle 113 is in a circular ring shape. The baffle 113 is always located in the main oil cylinder 12 and divides the main oil cylinder 12 into two second cavities 121. A third oil circuit 111 is provided in the fixed rod 11. Two third oil circuits 111 are provided. One end of each third oil circuit 111 is connected to a second oil circuit 221, and the other end is connected to a second cavity 121. The design of the baffle 113 can ensure that the internal space of the main oil cylinder 12 is reasonably divided, and the oil cylinder can move stably during operation. The design of the third oil circuit 111 allows the oil to circulate efficiently inside the fixed rod 11, so that when the high-pressure oil enters the fixed rod 11, it can flow into one of the second cavities 121 through the third oil circuit 111, fill the second cavity 121 and push the main oil cylinder 12 to move in a direction away from the other second cavity 121.

[0036] Reference Figure 4 and Figure 6 , a plurality of fourth oil circuits 112 are provided in the fixed rod 11. The fourth oil circuit 112 is provided at one end of the third oil circuit 111 away from the second oil circuit 221. The fourth oil circuit 112 is evenly distributed along the circumference of the fixed rod 11. The length direction of the fourth oil circuit 112 is the radial direction of the fixed rod 11. One end of the fourth oil circuit 112 is connected to the third oil circuit 111, and the other end is connected to the second cavity 121. The plurality of fourth oil circuits 112 are evenly distributed along the circumference of the fixed rod 11, ensuring that the oil is evenly distributed from the fixed rod 11 to the master cylinder 12, improving the stability and reliability of the oil flow, thereby ensuring the balance of the oil pressure inside the master cylinder 12, and enhancing the smoothness of the movement of the master cylinder 12. In addition, the provision of the fourth oil circuit 112 also reduces the resistance to the flow of oil, reduces the energy consumption of the system, and improves the efficiency of the entire system.

[0037] Reference Figure 2 and Figure 7A slide groove 331 is provided at the middle position of the movable rod 33 near the action block 4. The length direction of the slide groove 331 is parallel to the length direction of the movable rod 33. A boss 332 is fixedly provided at the middle position of the groove bottom of the slide groove 331. Two connecting grooves 321 are provided on the side wall of the second locking cylinder 32 near the action block 4. The connecting groove 321 is connected to the slide groove 331 near the side of the movable rod 33. The locking part 34 includes a roller 341. There are two rollers 341. Each roller 341 is arranged in a connecting groove 321 and can be moved in the slide groove. 331; two second limiting grooves 42 are provided on the side of the action block 4 close to the second locking cylinder 32, and the roller 341 can be clamped in the second limiting groove 42; when the locking portion 34 is in the locked state, one of the rollers 341 is clamped in the second limiting groove 42, and the side of the roller 341 away from the action block 4 abuts against the boss 332, and the other roller 341 is located in the slide groove 331, at this time the action block 4 cannot move; when the locking portion 34 is in the unlocked state, both rollers 341 are located in the slide groove 331, at this time the action block 4 can move.

[0038] In the initial state, the locking portion 34 is in a locked state, one roller 341 is located in a second limiting groove 42, and the other roller 341 is located in the sliding groove 331; when the movable rod 33 moves under the action of the piston 35, it can drive the boss 332 to move, so that the boss 332 moves to between the two rollers 341, and the roller 341 located in the second limiting groove 42 is out of the locked state, and the action block 4 can move under the action of the main oil cylinder 12. When the action block 4 moves, The roller 341 initially located in the second limiting groove 42 can be disengaged from the second limiting groove 42 and enter the sliding groove 331; until the action plate 6 and the main oil cylinder 12 move to a position where they cannot move, the high-pressure oil in the first cavity 311 continues to push the piston 35 and the movable rod 33 to move, driving the boss 332 to move to the side of the other roller 341 away from the action block 4, so that the roller 341 is clamped in the other second limiting groove 42, even if the locking portion 34 is switched back to the locked state.

[0039] Reference Figure 2 and Figure 7 The two sides of the boss 332 are inclined, and the side walls of the second limiting groove 42 are also inclined. The inclined design of the two sides of the boss 332 allows the roller 341 to move from the slide groove 331 to between the boss 332 and the action block 4 through the inclined settings on both sides of the boss 332, and can also move from the boss 332 to the slide groove 331; the inclined design of the two sides of the second limiting groove 42 allows the roller 341 to detach from or enter the second limiting groove 42 through the inclined design on both sides of the second limiting groove 42, thereby improving the reliability and convenience of the movement of the roller 341.

[0040] Reference Figure 2 and Figure 7 Two positioning wheels 342 are fixedly sleeved on the outer wall of the roller 341, two first positioning grooves 322 are provided on the inner wall of the connecting groove 321, and the positioning wheel 342 is arranged in the first positioning groove 322; two second positioning grooves 43 are provided on the inner wall of the second limiting groove 42, and when the roller 341 is clamped in the second limiting groove 42, the positioning wheel 342 can be located in the second positioning groove 43. By providing the first positioning groove 322, the moving range of the roller 341 is limited, so that the roller 341 cannot move axially in the connecting groove 321, thereby improving its stability; by providing the second positioning groove 43, the moving range of the roller 341 is further limited, and when the roller 341 is clamped in the second limiting groove 42, the positioning wheel 342 is located in the second positioning groove 43, so that the roller 341 cannot move axially in the second limiting groove 42, thereby further improving its stability.

[0041] Reference Figure 2 and Figure 7 A third positioning groove 44 is provided on the side wall of the action block 4 near the second locking cylinder 32; when the locking portion 34 is in the unlocked state, the roller 341 is located in the slide groove 331, and the side of the positioning wheel 342 near the action block 4 is located in the third positioning groove 44. The moving range of the roller 341 is further limited, and its stability is improved. Through the design of the third positioning groove 44, when the roller 341 slides in the slide groove 331, the side of the roller 341 near the action block 4 abuts against the action block 4, and the positioning wheel 342 is located in the third positioning groove 44, which prevents the roller 341 from being offset in the axial direction, and further improves its stability.

[0042] Reference Figure 3 and Figure 8 , a contact group 5 is arranged above the locking cylinder group 3, and an action plate 6 is fixedly connected at the top center of the movable rod 33, and the action plate 6 is used to transmit signals to the contact group 5. The locking cylinder can not only control the locking and conversion of the point rail, but also transmit the state signals of locking and conversion to the contact group 5 through the action plate 6, and then display them through the contact group 5; when the movable rod 33 drives the locking group to be in the locked state, one point rail is in the close contact state, and the other point rail is in the repelling state, and the action plate 6 transmits the locking state signal to the contact group 5, and displays them through the contact group 5; when the movable rod 33 drives the locking group to be in the unlocked state, both point rails are in the conversion state, and the action plate 6 transmits the signal to the contact group 5, and displays them through the contact group 5.

[0043] Reference Figure 3 and Figure 8, two rollers 51 are provided at the bottom of the contact group 5, and two inclined surfaces 61 are provided on both sides of the top of the action plate 6, and the rollers 51 and the inclined surfaces 61 cooperate with each other. When the action plate 6 moves, the cooperation between the inclined surfaces 61 and the rollers 51 can drive the rollers 51 to be in different states, so as to transmit different signals to the contact group 5; in the initial state, one of the rollers 51 is located on one side of the action plate 6 and is in a locked state, and the other roller 51 is located above the action plate 6 and abuts against the action plate 6. At this time, the locking part 34 is in a locked state, one point rail is in a close contact state, and the other point rail is in a repelling state. The signal received by the contact group 5 is a signal that one point rail is in a close contact state and the other point rail is in a repelling state; when the action plate 6 moves, it drives the locking part 34 to switch to an unlocked state, and the point rail enters a switching state. At this time, the roller 51 close to the action plate 6 in the locked state The inclined surface 61 on one side abuts against the roller 51, driving the roller 51 to move to the top of the action plate 6, so that the two rollers 51 are both located at the top of the action plate 6. At this time, the action plate 6 transmits a signal that the locking part 34 is in the unlocked state and the two point rails are both in the converted state; until the point rails complete the conversion from the close fit state to the repulsive state of one point rail and the conversion from the repulsive state to the close fit state of the other point rail, the locking part 34 returns to the locked state, and one of the rollers 51 is located on one side of the action plate 6 again, and the other roller 51 is located at the top of the action plate 6 and abuts against the action plate 6. At this time, the action plate 6 transmits a signal that the locking part 34 is in the locked state and the point rails are in the new repulsive state and close fit state after the conversion.

[0044] The implementation principle of a split locking cylinder for a railway turnout switch machine in the embodiment of the present application is: In the initial state, one point rail is in a close fit state, the other point rail is in a repelling state, the locking portion 34 is in a locked state, the main oil cylinder 12 is located on a side close to one of the auxiliary oil circuit plates 22, and the movable rod 33 is located on a side close to the other auxiliary oil circuit plate 22; in the locking portion 34, a roller 341 is located in a second limit groove 42, and the other roller 341 is located in the slide groove 331; at the action plate 6 and the contact group 5, one of the rollers 51 is located on one side of the action plate 6 and is in a locked state, and the other roller 51 is located above the action plate 6 and abuts against the action plate 6. At this time, the locking portion 34 is in a locked state, one point rail is in a close fit state, and the other point rail is in a repelling state. The signal received by the contact group 5 is a signal that one point rail is in a close fit state and the other point rail is in a repelling state.

[0045] When the switch machine is working, high-pressure oil is first injected into one of the oil inlet holes 211, and the high-pressure oil flows into an auxiliary oil circuit plate 22 through the corresponding first oil circuit 212, and then flows into the third oil circuit 111 in the fixed rod 11 and the first cavity 311 in the first locking cylinder 31 after passing through the second oil circuit 221 in the auxiliary oil circuit plate 22. Since they are in a locked state at this time, the main cylinder 12 and the action block 4 cannot move; after the high-pressure oil entering the first cavity 311 fills the first cavity 311, it drives the corresponding piston 35 to move in the direction close to the other piston 35, and drives the movable rod 33 to move in the same direction, and the boss 332 of the movable rod 33 moves, so that the boss 332 moves to between the two rollers 341. At this time, the roller 341 located in the second limit groove 42 is out of the locked state, and the action block 4 can move under the action of the main cylinder 12.

[0046] At this time, the locking portion 34 is in the unlocked state, and both of the two point rails are in the switching state; in the fixed rod 11, under the action of the high-pressure oil, the high-pressure oil flows into one of the second cavities 121 through the third oil path 111 and the fourth oil path 112, fills the second cavity 121 and pushes the main oil cylinder 12 to move in the direction away from the other second cavity 121, drives the main oil cylinder 12 to move in the direction of the auxiliary oil circuit plate 22 away from the side of the main oil cylinder 12, and through the cooperation of the first limit plate 13 and the first limit groove 41, the action block 4 also moves in the same direction, and the action block 4 drives the point rail The action plate 6 is moved to move and convert; at the same time, when the action block 4 moves, the roller 341 initially located in the second limit groove 42 can be disengaged from the second limit groove 42 and enter into the slide groove 331; when the movable rod 33 moves, the action plate 6 can be moved. At this time, the inclined surface 61 of the action plate 6 close to the side of the roller 51 in the locked state abuts against the roller 51, driving the roller 51 to move to the top of the action plate 6, so that the two rollers 51 are both located at the top of the action plate 6. At this time, the action plate 6 transmits a signal that the locking portion 34 is in the unlocked state and the two point rails are both in the conversion state.

[0047] Until the main oil cylinder 12 abuts against the auxiliary oil circuit board 22 on the other side, at this time, both the point rails are switched to the right position, completing the switch from the close contact state to the repulsive state of one point rail, and the switch from the repulsive state to the close contact state of the other point rail. At the same time, the main oil cylinder 12 and the action block 4 cannot continue to move, and the high-pressure oil in the first cavity 311 of the first locking oil cylinder 31 continues to push the corresponding piston 35 to move in the direction close to the other piston 35, driving the piston 35 and the movable rod 33 to continue to move, driving the boss 332 to move to the side of the other roller 341 away from the action block 4, so that the roller 341 is clamped in the other second limit groove 42, even if the locking part 34 is switched back to the locked state. At the same time, one of the rollers 51 is located on one side of the action plate 6, and the other roller 51 is located on the top of the action plate 6 and abuts against the action plate 6. At this time, the signal transmitted by the action plate 6 to the contact group 5 is the signal that the locking part 34 is in the locked state and the point rail is in the new repulsive state and close contact state after the switch is in place.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A split locking cylinder for a railway turnout switch, characterized in that: The invention comprises an actuating cylinder group (1), an oil circuit board group (2) and a locking cylinder group (3); an actuating block (4) is arranged between the actuating cylinder group (1) and the locking cylinder group (3); the actuating block (4) is connected to an actuating rod of a switch machine and is used to drive the point rail to move; the actuating cylinder group (1) comprises a fixing rod (11) and a main cylinder (12); the fixing rod (11) is arranged horizontally, and the main cylinder (12) is slidably sleeved on the fixing rod (11); a first limiting plate (13) is fixedly arranged on one side of the main cylinder (12) close to the locking cylinder group (3); a first limiting groove (41) is provided on one side of the actuating block (4) close to the main cylinder (12); the size of the first limiting groove (41) is similar to that of the main cylinder (12). The size of the first limit plate (13) is adapted, and the first limit plate (13) is always clamped in the first limit groove (41); the oil circuit plate group (2) comprises a main oil circuit plate (21) and an auxiliary oil circuit plate (22); the auxiliary oil circuit plates (22) are vertically arranged and two are provided, the main oil circuit plate (21) is horizontally arranged, the main oil circuit plate (21) is fixedly arranged between the two auxiliary oil circuit plates (22), and the main oil circuit plate (21) is located above the fixing rod (11); two oil inlet holes (211) are opened on the top of the main oil circuit plate (21), and two first oil circuits (212) are provided in the main oil circuit plate (21), and each of the oil inlet holes (211) is connected to one of the first oil circuits (212). , one end of each of the first oil circuits (212) away from the oil inlet hole (211) is connected to one of the auxiliary oil circuit plates (22); the locking cylinder group (3) comprises a first locking cylinder (31), a second locking cylinder (32), a movable rod (33) and a locking portion (34); the first locking cylinder (31) is horizontally arranged and two are provided, and each of the first locking cylinders (31) is fixedly connected to one of the auxiliary oil circuit plates (22); the second locking cylinder (32) is coaxially arranged with the first locking cylinder (31), and the second locking cylinder (32) is fixedly arranged between the two first locking cylinders (31); the movable rod (33) is also coaxially arranged with the first locking cylinder (31), and the The movable rod (33) is slidably connected to the second locking cylinder (32) along the length direction of the second locking cylinder (32), and both ends of the movable rod (33) are located in the first locking cylinder (31); both ends of the movable rod (33) are fixedly sleeved with pistons (35), and the piston (35) is slidably arranged in the first locking cylinder (31), and a first cavity (311) is formed between the piston (35), the inner side wall of the first locking cylinder (31) and the auxiliary oil circuit plate (22); the locking portion (34) is arranged in the middle position of the movable rod (33) and is located on a side close to the action block (4), and the locking portion (34) is used to lock the action block (4);When the locking portion (34) is in a locked state, the action block (4) and the master cylinder (12) cannot move, and when the locking portion (34) is in an unlocked state, the action block (4) and the master cylinder (12) can move; when the movable rod (33) moves from a side close to one of the first locking cylinders (31) toward a side close to another of the first locking cylinders (31), the locking portion (34) can switch from a locked state to an unlocked state, and then to a locked state.

2. A split locking cylinder for a railway turnout switch according to claim 1, characterized in that: A second oil circuit (221) is provided in the auxiliary oil circuit plate (22), the middle of the second oil circuit (221) is connected to the first oil circuit (212), one end of the second oil circuit (221) is connected to the fixing rod (11), and the other end is connected to the first cavity (311) in the first locking oil cylinder (31).

3. A split locking cylinder for a railway turnout switch according to claim 2, characterized in that: A baffle (113) is fixedly connected at the middle position of the outer wall of the fixed rod (11); the baffle (113) is annular and is always located in the master oil cylinder (12), and divides the master oil cylinder (12) into two second cavities (121); a third oil circuit (111) is provided in the fixed rod (11), and two third oil circuits (111) are provided, one end of each of the third oil circuits (111) is connected to one of the second oil circuits (221), and the other end is connected to one of the second cavities (121).

4. A split locking cylinder for a railway turnout switch according to claim 3, characterized in that: A plurality of fourth oil passages (112) are provided in the fixed rod (11); the fourth oil passages (112) are arranged at one end of the third oil passage (111) away from the second oil passage (221); the fourth oil passages (112) are evenly distributed along the circumference of the fixed rod (11); the length direction of the fourth oil passages (112) is the radial direction of the fixed rod (11); one end of the fourth oil passage (112) is in communication with the third oil passage (111), and the other end is in communication with the second cavity (121).

5. A split locking cylinder for a railway turnout switch according to claim 4, characterized in that: A slide groove (331) is provided at a middle position of a side of the movable rod (33) close to the action block (4), the length direction of the slide groove (331) is parallel to the length direction of the movable rod (33), and a boss (332) is fixedly provided at a middle position of the groove bottom of the slide groove (331); two connecting grooves (321) are provided on the side wall of the second locking oil cylinder (32) close to the action block (4), and the connecting groove (321) is connected to the slide groove (331) on the side close to the movable rod (33); the locking part (34) includes a roller (341), and two rollers (341) are provided, each of which is arranged in one of the connecting grooves (321) and can be moved in the slide groove (3 The action block (4) slides in the sliding groove (31); two second limiting grooves (42) are provided on a side of the action block (4) close to the second locking cylinder (32), and the roller (341) can be clamped in the second limiting groove (42); when the locking portion (34) is in a locked state, one of the rollers (341) is clamped in the second limiting groove (42), and the side of the roller (341) away from the action block (4) abuts against the boss (332), and the other roller (341) is located in the sliding groove (331), and the action block (4) cannot move at this time; when the locking portion (34) is in an unlocked state, both of the rollers (341) are located in the sliding groove (331), and the action block (4) can move at this time.

6. A split locking cylinder for a railway turnout switch according to claim 5, characterized in that: The two sides of the boss (332) are inclined, and the side walls of the two sides of the second limiting groove (42) are also inclined.

7. A split locking cylinder for a railway turnout switch according to claim 6, characterized in that: Two positioning wheels (342) are fixedly sleeved on the outer wall of the roller (341); two first positioning grooves (322) are provided on the inner wall of the connecting groove (321); the positioning wheel (342) is arranged in the first positioning groove (322); two second positioning grooves (43) are provided on the inner wall of the second limiting groove (42); when the roller (341) is clamped in the second limiting groove (42), the positioning wheel (342) can be located in the second positioning groove (43).

8. A split locking cylinder for a railway turnout switch according to claim 7, characterized in that: A third positioning groove (44) is provided on the side wall of the action block (4) close to the second locking cylinder (32); when the locking portion (34) is in an unlocked state, the roller (341) is located in the slide groove (331), and the side of the positioning wheel (342) close to the action block (4) is located in the third positioning groove (44).

9. A split locking cylinder for a railway turnout switch according to claim 8, characterized in that: A contact group (5) is provided above the locking cylinder group (3), and an action plate (6) is fixedly connected to the top center of the movable rod (33), and the action plate (6) is used to transmit signals to the contact group (5).

10. A split locking cylinder for a railway turnout switch according to claim 9, characterized in that: Two rollers (51) are provided at the bottom of the contact point group (5), and two inclined surfaces (61) are provided on both sides of the top of the action plate (6), and the rollers (51) and the inclined surfaces (61) cooperate with each other.

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