A new type of side-mounted electro-hydraulic switch machine

Abstract

The application discloses a novel side-mounted electro-hydraulic switch machine and belongs to the technical field of railway traffic equipment. The novel side-mounted electro-hydraulic switch machine comprises a moving rod group, a locking part and an electro-hydraulic driving unit. The moving rod group comprises a moving rod, a connecting part and a limiting part. The moving rod is detachably connected with the connecting part. The limiting part is fixedly and rotatably connected with the connecting part. The electro-hydraulic driving unit comprises a main oil cylinder and an auxiliary oil cylinder. The main oil cylinder and the auxiliary oil cylinder are stacked. The main oil cylinder and the auxiliary oil cylinder independently move in the horizontal direction. The main oil cylinder is connected with the connecting part in a matched mode. The auxiliary oil cylinder is connected with the limiting part in a matched mode. The locking part is fixedly arranged. In the locking state, the locking part is connected with the limiting part in a matched mode, and the limiting part is locked on the locking part. In the working state, the auxiliary oil cylinder moves horizontally to drive the limiting part to rotate, and the limiting part is unlocked from the locking part or the limiting part and the locking part restore the locking state. The novel side-mounted electro-hydraulic switch machine can realize compact and novel structure, high overall strength and long-term maintenance-free.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of railway traffic equipment, more particularly to a novel side-mounted electro-hydraulic switch machine. BACKGROUND

[0002] At present, in the domestic railway industry, the electro-hydraulic switch machine plays a role in switching railway turnout, changing the opening direction of the turnout, locking the turnout point rail, preventing external force from switching the turnout, and correctly reflecting the actual position of the turnout to give a signal, which is the key equipment for railway traffic safety.

[0003] The existing side-mounted switch machine is mostly in the form of motor driving gear and rack, or it is generally small in stroke and has no large-stroke side-mounted electro-hydraulic switch machine suitable for port and mine projects, or it can only achieve stroke but cannot meet the harsh use conditions on site, and frequent maintenance is required, so the failure rate is high. The existing electro-hydraulic switch machine cannot temporarily meet the characteristics of large stroke, high protection level, high reliability, and low maintenance demand of port and mine projects. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a novel side-mounted electro-hydraulic switch machine which can realize compact and novel structure, high overall strength, and long-term maintenance-free.

[0005] The novel side-mounted electro-hydraulic switch machine of the present application comprises an action rod group, a locking part, and an electro-hydraulic drive unit.

[0006] The action rod group comprises an action rod, a connecting part, and a limiting part. The action rod is detachably connected with the connecting part. The limiting part is fixedly connected in rotation with the connecting part, so that the limiting part has the ability to rotate without being separated from the connecting part.

[0007] The electro-hydraulic drive unit is arranged on one side in the direction of the action rod axis. The electro-hydraulic drive unit comprises a main oil cylinder and a secondary oil cylinder. The main oil cylinder and the secondary oil cylinder are stacked. The main oil cylinder and the secondary oil cylinder have the ability to move independently in the horizontal direction. The main oil cylinder is connected with the connecting part in cooperation, so that the main oil cylinder and the connecting part move synchronously in the horizontal direction. The secondary oil cylinder is connected with the limiting part in cooperation.

[0008] The locking part is fixedly arranged on the other side in the direction of the action rod axis. In the locked state, the locking part is connected with the limiting part in cooperation, so that the limiting part is locked on the locking part. In the working state, the secondary oil cylinder moves horizontally to drive the limiting part to rotate, so that the limiting part is unlocked from the locking part or the limiting part and the locking part restore the locked state.

[0009] As a further improvement of the present application, the limiting part comprises an integral lock block. The integral lock block is fixedly arranged on the upper side of the connecting part, and the integral lock block has the ability to rotate around the shaft.

[0010] The integral lock block is provided with a flat-bottomed groove, which is recessed on one side of the integral lock block, and the bottom surface of the flat-bottomed groove is a plane;

[0011] The integral lock block is provided with a convex-bottomed groove, which is recessed on one side of the integral lock block, the convex-bottomed groove is narrow on the side close to the bottom surface and wide on the side away from the bottom surface, and the bottom surface of the convex-bottomed groove is an arc-shaped protrusion outward.

[0012] As a further improvement of the present application, the electro-hydraulic driving unit includes a secondary oil cylinder, which is embeddedly connected with the flat-bottomed groove on the integral lock block on the side close to the action rod group, so that the movement of the secondary oil cylinder drives the translation or rotation of the integral lock block.

[0013] As a further improvement of the present application, the locking part includes a locking iron, which is fixedly arranged on the side of the integral lock block provided with the convex-bottomed groove, the length direction of the locking iron is consistent with the length direction of the action rod, and the width of the locking iron on the side close to the action rod is smaller than the width of the locking iron on the side away from the action rod, so that the two ends of the locking iron in the length direction are inclined surfaces, and the inclined surfaces are matched with the convex-bottomed groove.

[0014] As a further improvement of the present application, the connecting part includes an action rod sleeve, the length direction of the action rod sleeve is consistent with the length direction of the action rod, an action connecting hole is arranged in the action rod sleeve, the action connecting hole is arranged along the length direction of the action rod sleeve, and the action connecting hole penetrates through the two sides in the length direction of the action rod sleeve; two clamping bosses are arranged on the side of the action rod sleeve close to the electro-hydraulic driving unit, and the two clamping bosses are arranged along the length direction of the action rod sleeve.

[0015] As a further improvement of the present application, the electro-hydraulic driving unit includes a main oil cylinder, which is provided with a clamping groove on the side close to the action rod group, the clamping groove is matched with the clamping boss, so that the clamping groove and the clamping boss are connected in cooperation, and the main oil cylinder is fixedly connected with the action rod sleeve.

[0016] As a further improvement of the present application, the upper end of the connecting part is provided with two groups of threaded mounting holes; two extrusion devices are arranged in the connecting part, and the two extrusion devices are fixedly arranged in the connecting part through the corresponding threaded mounting holes, so that the extrusion devices limit the connection and separation of the action rod and the connecting part.

[0017] As a further improvement of the present application, the connecting part further includes a contact seat group; the contact seat group includes a quick-action strip, a starting strip and a clamping assembly; the quick-action strip is slidingly connected on the side of the action rod group away from the electro-hydraulic driving unit; a notch is arranged on the upper surface of the quick-action strip; the starting strip is slidingly connected on the side of the quick-action strip close to the action rod group, the two ends of the starting strip in the length direction are inclined surfaces; and the starting strip is fixedly connected with the secondary oil cylinder.

[0018] A linkage assembly is arranged between the starting strip and the quick-action strip to drive the movement of the quick-action strip by the movement of the starting strip;

[0019] The clamping assembly is in sliding connection with the quick-action strip and the starting strip, so that when the clamping assembly slides to abut against the notch and the inclined surface at the same time, the contact point seat group moves to the position.

[0020] As a further improvement of the present application, the linkage assembly includes an associated shaft pin; a long waist hole is formed on the starting strip, and the long waist hole is formed along the length direction of the starting strip; the associated shaft pin is arranged on the side of the quick-action strip close to the starting strip, one end of the associated shaft pin is fixedly connected with the quick-action strip, and the other end is arranged in the long waist hole, so that after the starting strip slides a certain stroke, the associated shaft pin abuts against the starting strip.

[0021] As a further improvement of the present application, the clamping assembly includes a contact point group, two quick-action claws and two rollers; the contact point group is arranged on the side of the quick-action strip away from the action lever group; the lower end surface of each quick-action claw is in sliding connection with the upper end surface of the quick-action strip; the surface of each roller is in abutment with the upper surface of the starting strip, so that each roller can relatively roll on the upper surface of the starting strip; a tension spring is arranged between the two quick-action claws.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] The two oil cylinders are stacked to divide the action stroke of the switch machine into two independent but interrelated parts, so that the upper limit of the action stroke of the switch machine has nothing to do with the length of the switch machine, but only with the width. Compared with the horizontal arrangement of the oil cylinders in the prior art, the arrangement of the present application greatly improves the upper limit of the action stroke of the switch machine under the same volume.

[0024] The traditional double-lock block system of the switch machine is integrated into an integrated lock block system, which is more smooth in unlocking and improves the working efficiency of the switch machine. Moreover, the integrated lock block system occupies less space and compresses the length of the action lever, which not only improves the structural strength and rigidity of the action lever of the switch machine, but also improves the upper limit of the action stroke design of the switch machine under the same volume, so as to be suitable for port, mine and other projects, and solve the problem of insufficient stroke of the existing switch machine.

[0025] When the squeeze occurs, the connecting part and the action lever will be separated, so that the locked object is changed from the action lever group to the connecting part and the limiting part on the action lever group. At this time, the connecting part is squeezed, so as to protect other parts in the electro-hydraulic switch machine from being squeezed. After that, as long as the action lever is simply reset, the maintenance of the switch machine can be realized, which is convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure of the present application is shown in the figure;

[0027] Figure 2 Structure diagram of the electro-hydraulic driving unit of the present application;

[0028] Figure 3 Structure diagram of the action lever group of the present application;

[0029] Figure 4 Structure diagram of the contact seat group of the present application;

[0030] Figure 5 Structure diagram of the hand-operated safety interface of the present application.

[0031] Explanation of the figure numbers:

[0032] 1 housing group,

[0033] 2 action lever group, 21 action lever, 22 extrusion device, 23 integrated lock block, 24 action lever sleeve, 25 pin shaft,

[0034] 4 contact seat group, 41 starting strip, 42 locking iron, 43 quick-action strip, 44 bottom shell, 45 contact group, 46 quick-action claw, 47 roller, 48 tension spring,

[0035] 5 electro-hydraulic driving unit, 51 double-shaft motor, 52 main oil cylinder, 53 auxiliary oil cylinder, 54 back oil tank, 55 cover plate, 56 main oil cylinder rod, 57 valve block group, 58 hydraulic element, 59 back valve block,

[0036] 6 push plate,

[0037] 7 hand-operated safety interface, 71 limit switch, 72 sensing shaft, 73 spring, 74 sealing cover, 75 rubber connecting part,

[0038] 8 terminal,

[0039] 9 uncapping safety switch. DETAILED DESCRIPTION

[0040] Specific embodiment one: please refer to Figures 1-5 A novel side-mounted electro-hydraulic switch machine, comprising a housing group 1, an action lever group 2, a contact seat group 4, an electro-hydraulic driving unit 5, a hand-operated safety interface 7, a terminal 8, and an uncapping safety contact 9.

[0041] The housing group 1 is made of rigid material, and a cavity is formed in the housing group 1, which is used to accommodate the action lever group 2, the indicating lever group 3, the contact seat group 4, the electro-hydraulic driving unit 5, the push plate 6, the hand-operated safety interface 7, the terminal 8, and the uncapping safety contact 9.

[0042] The action lever group 2 comprises an action lever 21, an extrusion device 22, an integrated lock block 23, and an action lever sleeve 24.

[0043] The action lever sleeve 24 is made of rigid material, and an action connecting hole is formed in the action lever sleeve 24. The action connecting hole is a circular through hole, and is formed along the length direction of the action lever sleeve 24 and penetrates through both sides of the action lever sleeve 24 in the length direction;

[0044] Two clamping bosses are arranged on the outer side of the action lever sleeve 24, and both are arranged on the rear side of the action lever sleeve 24 and along the length direction of the action lever sleeve 24.

[0045] Two groups of threaded mounting holes are arranged on the upper end of the action lever sleeve 24, and both are arranged on both ends of the action lever sleeve 24 in the length direction.

[0046] An axle pin mounting hole is formed in the upper part of the action lever sleeve 24 and in the middle part of the action lever sleeve 24.

[0047] The action lever 21 is made of rigid material and is in a strip shape. The size of the action lever 21 matches that of the action connecting hole, and the action lever 21 is arranged in the action connecting hole so as to penetrate through both sides of the action lever sleeve 24 in the left-right direction.

[0048] Two extrusion devices 22 are arranged on the action lever sleeve 24 through corresponding threaded mounting holes so as to be arranged on both ends of the action lever sleeve 24 in the length direction and to control the connection and separation of the action lever 21 and the action lever sleeve 24.

[0049] The integrated lock block 23 is arranged on the upper side of the action lever sleeve 24 and is fixedly connected with the action lever sleeve 24 so as to be fixed on the upper side of the action lever sleeve 24 and to be rotatable on the upper side of the action lever sleeve 24.

[0050] A flat-bottomed groove is arranged on the integrated lock block 23 and is recessed on one side of the integrated lock block 23. The bottom surface of the flat-bottomed groove is a plane, and the flat-bottomed groove is arranged on the side of the integrated lock block 23 close to the clamping boss.

[0051] A convex-bottomed groove is arranged on the integrated lock block 23 and is recessed on one side of the integrated lock block 23. The convex-bottomed groove is narrow on the side close to the bottom surface and wide on the side away from the bottom surface, and the bottom surface of the convex-bottomed groove is an arc-shaped protrusion outward. The convex-bottomed groove is arranged on the side of the integrated lock block 23 away from the clamping boss and is oppositely arranged with the flat-bottomed groove.

[0052] The shaft pin mounting hole is provided with a pin shaft 25, the pin shaft 25 is connected in the shaft pin mounting hole through the shaft center of the integrated lock block 23, so that the integrated lock block 23 is fixed on the upper side of the action lever sleeve 24, and the other integrated lock block 23 can rotate around the pin shaft 25 on the upper side of the action lever sleeve 24.

[0053] The contact seat group 4 is arranged on the rear side of the action lever group 2, and the contact seat group 4 comprises a starting strip 41, a locking iron 42, a quick-action strip 43, a bottom shell 44 and a contact group 45.

[0054] The bottom shell 44 is made of rigid material, and the bottom shell 44 is arranged on the rear side of the action lever group 2.

[0055] The quick-action strip 43 is slidingly connected to the side of the bottom shell 44 close to the action lever group 2, so that the quick-action strip 43 can slide left and right along the length direction; and a notch is formed on the upper surface of the quick-action strip 43.

[0056] The locking iron 42 is fixedly connected to the side of the quick-action strip 43 close to the action lever group 2, the length direction of the locking iron 42 is consistent with the length direction of the quick-action strip 43, and the width of the side of the locking iron 42 close to the action lever group 2 is smaller than the width of the side of the locking iron 42 away from the action lever group 2, so that the two ends of the locking iron 42 in the length direction are inclined surfaces, and the inclined surfaces are matched with the convex bottom groove.

[0057] The starting strip 41 is slidingly connected between the quick-action strip 43 and the locking iron 42, the length direction of the starting strip 41 is consistent with the length direction of the quick-action strip 43, the width of the upper end of the starting strip 41 is smaller than the width of the lower end of the starting strip 41, so that the two ends of the starting strip 41 in the length direction are inclined surfaces;

[0058] A protruding square body is fixedly arranged on the starting strip 41, the protruding square body is arranged on the side of the starting strip 41 close to the action lever group 2, the protruding square body is arranged on the upper side of the locking iron 42, and the protruding square body is guided by the upper plane of the locking iron 42; a groove is formed on the side of the protruding square body close to the action lever group 2.

[0059] A long waist hole is formed on the starting strip 41, and the long waist hole is formed along the length direction of the starting strip 41.

[0060] An associated shaft pin is fixedly connected to the side of the quick-action strip 43 close to the starting strip 41, one end of the associated shaft pin is fixedly connected to the quick-action strip 43, and the other end of the associated shaft pin is arranged in the long waist hole, so that after the starting strip 41 slides a certain stroke, the associated shaft pin abuts against the starting strip 41, so that the starting strip 41 drives the quick-action strip 43 to slide synchronously.

[0061] The contact group 45 is arranged on the upper side of the bottom shell 44, and the contact group 45 is provided with two speed pawls 46 on the side close to the action lever group 2. The two speed pawls 46 are respectively arranged at the two ends in the length direction of the contact group 45, and the lower end surface of each speed pawl 46 is in sliding connection with the upper end surface of the speed bar 43;

[0062] Each speed pawl 46 is provided with a roller 47 on the side close to the action lever group 2, and the roller 47 is in rotary connection with the corresponding speed pawl 46, so that the roller 47 can rotate on the corresponding speed pawl 46; and the surface of each roller 47 is in abutment with the upper surface of the starting bar 41, so that each roller 47 can relatively roll on the upper surface of the starting bar 41.

[0063] The two speed pawls 46 are provided with a tension spring 48 therebetween, and the tension spring 48 has elasticity.

[0064] It should be noted that when the starting bar 41 slides and synchronously drives the speed bar 43 to slide a certain stroke, so that the roller 47 rolls to the inclined surface of the starting bar 41, the position of the speed pawl 46 relative to the speed bar 43 is the setting position of the notch on the speed bar 43, so that the speed pawl 46 is punched into the notch at this time.

[0065] The electro-hydraulic drive unit 5 is arranged on the front side of the action lever group 2, and the electro-hydraulic drive unit 5 includes a double-output-shaft motor 51, a main oil cylinder 52, a vice oil cylinder 53, a back oil tank 54, a cover plate 55, a valve block group 57, and a back valve block 59.

[0066] The cover plate 55 is made of rigid material, and the length direction of the cover plate 55 is consistent with the length direction of the action lever group 2; two groups of first threaded mounting holes and one group of second threaded mounting holes are formed in the upper end of the cover plate 55.

[0067] The number of back valve blocks 59 is two, and the two back valve blocks 59 are fixedly arranged at the two ends of the cover plate 55, and the two back valve blocks 59 are arranged on the lower side of the cover plate 55; and a copper-based graphite guide plate is arranged on each back valve block 59.

[0068] The valve block group 57 includes two groups of valve blocks, and the two groups of valve blocks are fixedly arranged at the two ends of the cover plate 55 and are arranged on the lower side of the cover plate 55; and the two groups of valve blocks are respectively arranged on the side close to the action lever group 2 of the corresponding back valve block 59, so that the cover plate 55, the valve block group 57, and the back valve block 59 form a basic frame.

[0069] The main oil cylinder rod 56 and the vice oil cylinder rod are respectively connected between the two groups of valve blocks, the main oil cylinder rod 56 is horizontally arranged, and the two ends of the main oil cylinder rod 56 are fixedly connected with the lower ends of the corresponding valve block groups; and the vice oil cylinder rod is horizontally arranged, and the two ends of the vice oil cylinder rod are fixedly connected with the upper ends of the corresponding valve block groups.

[0070] The main oil cylinder 52 is arranged on the front side of the action lever group 2, the main oil cylinder 52 is a square oil cylinder, the main oil cylinder 52 is connected to the main oil cylinder rod 56, so that the main oil cylinder 52 has the ability to slide horizontally along the main oil cylinder rod 56; the main oil cylinder 52 is provided with a clamping groove on the side close to the action lever group 2, the clamping groove is matched with the clamping boss, so that the clamping groove is connected with the clamping boss, and the main oil cylinder 52 is fixedly connected with the action lever sleeve 24.

[0071] The auxiliary oil cylinder 53 is arranged on the upper side of the main oil cylinder 52, the auxiliary oil cylinder 53 is a square oil cylinder, the auxiliary oil cylinder 53 is connected to the auxiliary oil cylinder rod, so that the auxiliary oil cylinder 53 has the ability to slide horizontally along the auxiliary oil cylinder rod; the auxiliary oil cylinder 53 is embeddedly connected with the flat-bottom groove on the integral lock block 23 on the side close to the action lever group 2, so that the movement of the auxiliary oil cylinder 53 drives the translation or rotation of the integral lock block 23.

[0072] It should be noted that the main oil cylinder 52 and the auxiliary oil cylinder 53 are communicated through the valve block group 57, the main oil cylinder rod 56 and the auxiliary oil cylinder rod.

[0073] The auxiliary oil cylinder 53 is fixedly connected with the push plate 6, one end of the push plate 6 is fixedly connected with the auxiliary oil cylinder 53, the other end of the push plate 6 is embeddedly connected with the groove on the protruding square body, so that the auxiliary oil cylinder 53 drives the movement of the push plate 6, and drives the synchronous sliding of the starting strip 41; the push plate 6 is arranged on the upper side of the integral lock block 23, so as to prevent the integral lock block 23 from being pulled out.

[0074] The double-output-shaft motor 51 is arranged on the side of the main oil cylinder 52 away from the action lever group 2, the double-output-shaft motor 51 has two output shafts, one end of the double-output-shaft motor 51 is used to drive the movement of the main oil cylinder 52 and the auxiliary oil cylinder 53, and the other end of the double-output-shaft motor 51 is used for manual operation of the whole machine.

[0075] The back oil tank 54 is arranged on the side of the main oil cylinder 52 away from the action lever group 2; the back oil tank 54 is integrated with the hydraulic element 58 on the back valve block 59, and the hydraulic element 58 is used for adjusting the output parameters of the electro-hydraulic drive unit 5.

[0076] The number of the wiring terminal 8 is two groups, and the two groups of wiring terminals 8 are respectively connected with the corresponding first threaded mounting hole; the number of the uncapping safety switch 9 is one, and the uncapping safety switch 9 is connected with the second threaded mounting hole.

[0077] The hand-operated safety interface 7 is arranged on the base group 1, and at least a limit switch 71, an induction shaft 72, a sealing cover 74 and a rubber connecting part 75 are arranged near the hand-operated safety interface 7.

[0078] The size of the sealing cover 74 matches the size of the hand-operated safety interface 7, so that when the sealing cover 74 is arranged in the hand-operated safety interface 7, the sealing cover 74 seals the hand-operated safety interface 7; the protection level of the sealing cover 74 at least reaches IP67;

[0079] The rubber connecting part 75 is fixedly connected with one end of the sealing cover 74, and the other end of the rubber connecting part 75 is fixedly connected with the base set 1, so as to prevent the sealing cover 74 from falling into a corner and being lost during operation after the sealing cover 74 is separated from the hand-operated safety interface 7; the protection level of the rubber connecting part 75 is at least IP67;

[0080] The limit switch 71 is arranged in the base set 1, and the limit switch 71 is used for controlling the power-off or power-on state of the switch machine; the induction shaft 72 is arranged on the lower side of the limit switch 71, and the lower side of the induction shaft 72 is provided with a square push plate, so as to push the square push plate to push the induction shaft 72 to move towards the limit switch 71 during hand operation;

[0081] The spring 73 is arranged between the induction shaft 72 and the square push plate, and when the induction shaft 72 is separated from the limit switch 71, the spring 73 is in a free state, and the spring 73 generates a restoring force when the spring 73 is subjected to the pushing force of the square push plate, so as to drive the induction shaft 72 to return to move away from the limit switch 71.

[0082] Working principle:

[0083] In the power-on state, the double-output shaft motor 51 starts to rotate, the internal gear pump starts to pump oil, the oil is transmitted to the valve block set 57 through the back valve block 59, and the valve block set 57 distributes the oil to the main oil cylinder 52 and the auxiliary oil cylinder 53 through the connecting part of the main oil cylinder rod 56, the main oil cylinder 52 and the auxiliary oil cylinder 53.

[0084] When starting, the integrated lock block 23 is locked on the locking iron 42 by the auxiliary oil cylinder 53, so that the action lever 21 on the action lever set 2 cannot directly act, that is, the action lever sleeve 24 connected with the action lever 21 cannot directly act, that is, the main oil cylinder 52 connected with the action lever sleeve 24 cannot directly act, so that the oil is all transmitted to the auxiliary oil cylinder 53 through the connecting part of the main oil cylinder 52 and the auxiliary oil cylinder 53, the auxiliary oil cylinder 53 acts, pushes the integrated lock block 23 to rotate, so that the integrated lock block 23 is unlocked from the locking iron 42, so that the action lever set 2 connected with the integrated lock block 23 is unlocked, so that the main oil cylinder 52 connected with the action lever set 2 is unlocked, so that the main oil cylinder 52 starts to move;

[0085] The main oil cylinder 52 cooperates with the pushing action rod sleeve 24, the action rod sleeve 24 drives the action rod 21 to act, the auxiliary oil cylinder 53 is driven by the integral lock block 23 on the action rod group 2, and thus acts synchronously with the main oil cylinder 52, and the action rod is in place after the action 190 stroke; at this time, the oil in the main oil cylinder 52 overflows into the auxiliary oil cylinder 53 through the valve block above the main oil cylinder 52 and the auxiliary oil cylinder rod, and the auxiliary oil cylinder 53 starts to act independently; at this time, since the action rod group 2 stops acting, the action mode is changed from the integral lock block 23 pushing the auxiliary oil cylinder 53 to translate to the auxiliary oil cylinder 53 pushing the integral lock block 23 to rotate, and the integral lock block 23 is pressed by the auxiliary oil cylinder 53 again and locked on the locking iron 42;

[0086] At the same time as the above-mentioned action occurs, the auxiliary oil cylinder 53 drives the push plate 6 to move in the direction of the movement of the action rod 21, the push plate 6 drives the starting strip 41 to move, the starting strip 41 has a long waist hole, after the idle stroke of the long waist hole of the starting strip 41 is completed, the starting strip 41 drives the quick-action strip 43 to act through the pin shaft in the middle of the quick-action strip 43, the roller 47 and the quick-action claw 46 relatively roll and slide on the starting strip 41 and the quick-action strip 43 respectively, until the roller 47 falls off the inclined surface of the starting strip 41, and the quick-action claw 46 enters the gap in the quick-action strip 43, the action is transmitted to the contact group 45, the moving contact in the contact group 45 enters the static contact, and the action to the position indicating function is realized.

[0087] When the extrusion occurs, the action rod 21 cannot act because the integral lock block 23 is still locked on the locking iron 42 by the auxiliary oil cylinder 53, but at this time, the two sets of extrusion devices 22 on the action rod group 2 start to act, so that the action rod 21 is separated from the action rod sleeve 24, and the integral lock block 23 is fixed with the action rod sleeve 24, so that the locked object is changed from the action rod group 2 to the integral lock block 23 and the action rod sleeve 24 on the action rod group 2, and the action rod sleeve 21 is extruded, so as to protect other components in the electro-hydraulic switch machine from being extruded. After that, as long as the action rod 21 and the extrusion device 22 are simply reset, the maintenance of the switch machine can be realized, which is convenient and fast.

[0088] When manual operation is needed, the sealing cover 74 on the manual operation safety interface 7 is unscrewed, the sealing cover 74 is connected to the machine shell group 1 through the rubber connecting part 75, so as to ensure that it will not be lost during operation.

[0089] The manual operation rod is an internal hex long rod, the manual operation rod extends into the inside of the switch machine through the opening of the sealing cover 74, at this time, the manual operation rod will push the square push plate at the lower part of the sensing shaft 72, so that the sensing shaft 72 starts to rotate, the sensing shaft 72 lifts the sensing button on the limit switch 71, and the whole machine is powered off.

[0090] The hand control lever continues to extend, the hand control lever is sleeved with the double-output shaft motor 51 for manual operation of the whole machine, so that the double-output shaft motor 51 can be driven to rotate through the hand control lever, the oil is pumped in, at this time the action flow is consistent with that when the electric control is performed, so that the hand control function is realized.

[0091] The application has the advantages of simple structure, reliable locking, variable and long stroke, small maintenance workload, good stability, high reliability, etc. The main oil cylinder and the auxiliary oil cylinder are stacked, the action stroke of the switch machine is divided into two independent but interrelated parts, the upper limit of the action stroke of the switch machine is greatly improved under the same volume, the traditional double-lock block system of the switch machine is integrated into a one-piece lock block system, the unlocking is smoother, the occupied space is smaller, the length of the action rod is compressed, the structure strength and rigidity of the action rod of the switch machine are improved, and the upper limit of the action stroke design of the switch machine is improved under the same volume.

Claims

1. A novel side-mounted electro-hydraulic switch machine, characterized in that: Includes a lever assembly (2), a locking part, and an electro-hydraulic drive unit (5); The actuator assembly (2) includes an actuator (21), a connecting part, and a limiting part; the actuator (21) is detachably connected to the connecting part; the limiting part is fixedly rotatably connected to the connecting part so that the limiting part has the ability to rotate without detaching from the connecting part; The electro-hydraulic drive unit (5) is located on one side of the axis of the actuating rod (21). The electro-hydraulic drive unit (5) includes a main cylinder (52) and an auxiliary cylinder (53). The main cylinder (52) and the auxiliary cylinder (53) are stacked. The main cylinder (52) and the auxiliary cylinder (53) have the ability to move independently in the horizontal direction. The main cylinder (52) is connected to the connecting part so that the main cylinder (52) and the connecting part move synchronously in the horizontal direction. The auxiliary cylinder (53) is connected to the limiting part. The locking part is fixedly installed on the other side of the axis of the action rod (21); in the locked state, the locking part is connected with the limiting part so that the limiting part is locked on the locking part; in the working state, the auxiliary oil cylinder (53) moves horizontally to drive the limiting part to rotate so that the limiting part is unlocked from the locking part or the limiting part and the locking part are restored to the locked state. The upper end of the connecting part is provided with two sets of threaded mounting holes; the connecting part is provided with two extrusion devices (22), and the two extrusion devices (22) are fixedly installed in the connecting part through the corresponding threaded mounting holes, so that the extrusion devices (22) restrict the connection and separation of the action rod (21) and the connecting part; The limiting part includes an integral locking block (23); a flat-bottomed groove is provided on the integral locking block (23), the flat-bottomed groove is a recess on one side of the integral locking block (23), and the bottom surface of the flat-bottomed groove is a plane; The side of the auxiliary cylinder (53) near the actuating lever assembly (2) is fitted into the flat-bottomed groove on the integrated locking block (23) so that the movement of the auxiliary cylinder (53) drives the translation or rotation of the integrated locking block (23); The connecting part includes an action rod sleeve (24); the action rod sleeve (24) is provided with two snap-fit ​​protrusions on the side near the electro-hydraulic drive unit (5), and the two snap-fit ​​protrusions are provided along the length direction of the action rod sleeve (24); The main cylinder (52) is provided with a snap-fit ​​groove on the side near the actuating rod assembly (2). The snap-fit ​​groove matches the snap-fit ​​boss so that the snap-fit ​​groove and the snap-fit ​​boss are connected in a cooperative manner. The main cylinder (52) is fixedly connected to the actuating rod sleeve (24).

2. A novel side-mounted electro-hydraulic switch machine according to claim 1, characterized in that: The integrated locking block (23) is fixedly installed on the upper side of the connecting part, and the integrated locking block (23) has the ability to rotate around the axis; The integrated lock block (23) is provided with a convex bottom groove. The convex bottom groove is a recess on one side of the integrated lock block (23). The convex bottom groove is narrow on the side near the bottom surface and wide on the side away from the bottom surface. The bottom surface of the convex bottom groove is an arc-shaped protrusion protruding outward. The convex bottom groove is arranged opposite to the flat bottom groove.

3. A novel side-mounted electro-hydraulic switch machine according to claim 1, characterized in that: The locking part includes a locking iron (42); the locking iron (42) is fixedly disposed on the side of the integrated locking block (23) with a convex bottom groove. The length direction of the locking iron (42) is consistent with the length direction of the actuating rod (21), and the width of the locking iron (42) on the side close to the actuating rod (21) is smaller than the width of the locking iron (42) on the side away from the actuating rod (21), so that the two ends of the locking iron (42) in the length direction are inclined surfaces, and the inclined surfaces match the convex bottom groove.

4. A novel side-mounted electro-hydraulic switch machine according to claim 1, characterized in that: The length direction of the action rod sleeve (24) is consistent with the length direction of the action rod (21). An action connection hole is provided inside the action rod sleeve (24). The action connection hole is opened along the length direction of the action rod sleeve (24) and passes through the two sides of the action rod sleeve (24) along the length direction.

5. A novel side-mounted electro-hydraulic switch machine according to claim 1, characterized in that: It also includes a contact seat assembly (4); the contact seat assembly (4) includes a quick-acting bar (43), a starting bar (41) and a snap-fit ​​assembly; the quick-acting bar (43) is slidably connected to the side of the actuating rod assembly (2) away from the electro-hydraulic drive unit (5); a notch is provided on the upper surface of the quick-acting bar (43); the starting bar (41) is slidably connected to the side of the quick-acting bar (43) close to the actuating rod assembly (2), and the two ends of the starting bar (41) in the length direction are inclined surfaces; the starting bar (41) is fixedly connected to the auxiliary oil cylinder (53); A linkage component is provided between the starting bar (41) and the quick-acting bar (43) so that the movement of the starting bar (41) drives the movement of the quick-acting bar (43); The snap-fit ​​assembly is slidably connected to the quick-acting bar (43) and the starting bar (41) respectively, so that when the snap-fit ​​assembly slides to simultaneously abut against the notch and the inclined surface, the contact seat assembly (4) indicates that the action is in place.

6. A novel side-mounted electro-hydraulic switch machine according to claim 5, characterized in that: The linkage component includes a linkage pin; a long slot is provided on the starter bar (41), the long slot is opened along the length direction of the starter bar (41); the linkage pin is set on the side of the quick-acting bar (43) close to the starter bar (41), one end of the linkage pin is fixedly connected to the quick-acting bar (43), and the other end is set in the long slot, so that after the starter bar (41) slides a certain distance, the linkage pin abuts against the starter bar (41).

7. A novel side-mounted electro-hydraulic switch machine according to claim 5, characterized in that: The snap-fit ​​assembly includes a contact group (45), two quick-acting claws (46) and two rollers (47); the contact group (45) is located on the side of the quick-acting bar (43) away from the actuating rod group (2); the lower end face of each quick-acting claw (46) is slidably connected to the upper end face of the quick-acting bar (43); the surface of each roller (47) is in contact with the upper surface of the starting bar (41) so that each roller (47) can roll relative to the upper surface of the starting bar (41); a tension spring (48) is provided between the two quick-acting claws (46).

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