A main transformer hydraulic slip propulsion positioning device and construction method

Abstract

The application belongs to the technical field of electric power engineering, and particularly relates to a device and a construction method for positioning a main transformer through hydraulic slip propulsion, which comprises the following steps: S1: a special main transformer foundation is designed and built, the foundation is composed of four long strip-shaped foundations, the length of each foundation is 7 meters, the width is 1 meter, the depth is 1.2 meters, the material is concrete, and the side close to the channel is integrally poured with the oil collecting pool retaining wall concrete to enhance the stability; S2: before the main transformer enters, the road is leveled, and the surrounding of the retaining wall is leveled and compacted; the construction method is more simple, the requirement for the construction environment is lower, and therefore, the cost is relatively low, the construction cost is saved, the installation precision is improved, after the main transformer is positioned, the construction method further adjusts the main transformer body to ensure that the axis is consistent with the main transformer center line, and therefore, the installation precision of the transformer is improved, and the stable operation of the power system is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric power engineering, in particular to a device and a construction method for positioning a main transformer by hydraulic slip propulsion. BACKGROUND

[0002] A transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and its main components are a primary coil, a secondary coil and a core (magnetic core). Its main functions include voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), etc. In the field of electric power engineering, the transformer is a key equipment in the power system, and its installation quality directly affects the stable operation of the power system.

[0003] In the prior art, in order to facilitate the installation of the transformer on the preset foundation platform, a hydraulic slip propulsion device is used. After the transformer is jacked to a certain height, the transformer is slowly jacked into the preset position by the hydraulic propulsion device. This method can effectively reduce the construction difficulty, improve the construction efficiency, and also reduce the requirements for the foundation bearing capacity and space. However, in the past, the main transformer positioning is often achieved by embedding a track to the foundation position, and the main transformer needs to be configured with a track wheel, or a large hoisting device is used for hoisting and positioning. Therefore, the above installation method still has some problems and shortcomings.

[0004] Firstly, it has high requirements for the construction environment, and the construction site needs to be strictly leveled and compacted to ensure the stability and reliability of the hydraulic propulsion device. Secondly, the existing hydraulic slip propulsion device may cause damage to the transformer during jacking and propulsion, affecting its service life. In addition, the cost of the existing hydraulic slip propulsion device is relatively high, which increases the construction cost to some extent.

[0005] Therefore, the application provides a device and a construction method for positioning a main transformer by hydraulic slip propulsion. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] A method for using a device for positioning a main transformer by hydraulic slip propulsion, which uses the above-mentioned device for positioning a main transformer by hydraulic slip propulsion, comprising the following steps:

[0008] S1: design and build a special main transformer foundation, which is composed of four long strip foundations, each foundation has a length of 7 meters, a width of 1 meter and a depth of 1.2 meters, and is made of concrete. The side close to the channel is integrally poured with the oil collection pool retaining wall concrete to enhance the stability.

[0009] S2: Before the main transformer approaches, the road is leveled, and the retaining wall is leveled and compacted to facilitate the approach of the plate car. The specific operation is to use a road roller to compact the road, and the compaction frequency is 3 times, with a compaction force of 5 tons each time, to ensure the flatness and tightness of the road;

[0010] S3: The hydraulic flat car for carrying the main transformer can be parked on the side of the main transformer foundation retaining wall, and the main transformer center on the flat car is basically consistent with the foundation center after the vehicle is braked. The model of the hydraulic flat car is XYZ-100, the maximum load is 100 tons, and the maximum driving speed is 50 km / h;

[0011] S4: Sleeper is set up on the flat car and the main transformer foundation in the form of "#", the flat car and the foundation are on the same level platform, the material of the sleeper is hardwood, the length is 2 meters, the diameter is 0.3 meters, and the number is 4;

[0012] S5: Slowly lift the main transformer using four hydraulic jacks. The model of the hydraulic jack is ABC-400, the maximum lifting force is 400 tons, and the lifting speed is 10 mm / min. After the main transformer height exceeds the sleeper platform, a parallel steel rail is inserted at the center of the main transformer foundation pile. The length of the steel rail is 50 meters, the width is 0.2 meters, and the material is carbon steel;

[0013] S6: Install a slide plate between the steel rail and the transformer. The equipment falls on the steel rail slide plate. The material of the slide plate is polytetrafluoroethylene, the length is 50 meters, the width is 0.2 meters, and the thickness is 0.05 meters;

[0014] S7: Install the hydraulic rail clamp and baffle on the track. Slowly push the main transformer using the hydraulic propulsion device. In this process, the output end of the hydraulic propulsion device and the cylinder are alternately limited to ensure stable operation of the propulsion device. The model of the hydraulic propulsion device is DEF-600, the maximum propulsion force is 600 tons, and the propulsion speed is 10 mm / min. During the pushing process, the sleeper and rail that have passed through the main transformer are laid forward until the main transformer axis center;

[0015] S8: Slowly and smoothly push the main transformer to the transformer foundation platform. Stop pushing when the main transformer horizontal and vertical center is aligned with the platform;

[0016] S9: Again, set up jacks at the four vertex positions and place the platform. Finally, lift the main transformer and pull out the steel rail to lower the main transformer to the foundation;

[0017] S10: Remove the steel rail slide plate and hydraulic propulsion device;

[0018] S11: Slowly lift the main transformer with the jacks. According to the actual height, remove the platform sleeper, and repeat the lifting, sleeper removal, and lowering steps until the main transformer is lowered to the foundation. Finally, fine-tune the main transformer body to ensure that the axis is aligned with the main transformer centerline, and the main transformer is in place.

[0019] The technical scheme adopted by the present application to solve its technical problems is: the device for hydraulic slip propulsion of a main transformer, comprising a steel rail in step S6, a hydraulic propulsion device arranged on the top of the steel rail, a mounting seat fixed to one side of the bottom of the hydraulic propulsion device, a connecting plate fixed to one end of the outer peripheral surface of the output end of the hydraulic propulsion device, a limiting block fixed to one end of the inner surface of the connecting plate and the inner surface of the mounting seat, and an alternating positioning mechanism for limiting the hydraulic propulsion device, the limiting block being arranged in sliding connection with the middle positions of the two ends of the steel rail.

[0020] The alternating positioning mechanism comprises a plug-in assembly and a driving assembly.

[0021] Preferably, the plug-in assembly comprises a housing fixed to one end surface of the connecting plate and the mounting seat, a rotating shaft rotatably connected to the top of the inner cavity surface of the housing, an incomplete gear fixedly sleeved to the bottom of the outer peripheral surface of the rotating shaft, a first rack meshed with the sides of the two incomplete gears away from each other, a positioning shaft inserted into the inside of the first rack at adjacent positions, a plug shaft fixed to one end surface of the first rack, and a plurality of positioning holes passing through the middle position of the steel rail, the plug shaft and the limiting block at adjacent positions being connected in through insertion, one end of the positioning shaft extending out of the first rack at adjacent positions and being fixed to the inner cavity surface of the housing.

[0022] Preferably, the driving assembly comprises a first motor fixed to the top of one of the housings, a rotating rod rotatably connected to the sides of the two housings close to each other, a first bevel gear fixedly sleeved to the top of the outer peripheral surface of the rotating shaft, a second bevel gear fixedly sleeved to the outer peripheral surface of the rotating rod, and a plug column inserted into the inside of one of the rotating rods, one side of the plug column being fixed to the surface of the other rotating rod, the first bevel gear and the second bevel gear at adjacent positions being arranged in meshing connection, and the top of one of the rotating shafts passing through the housing at adjacent positions and being fixed to the output end of the first motor.

[0023] Preferably, the alternate positioning mechanism further comprises a cleaning assembly for cleaning the positioning hole inner cavity, the cleaning assembly comprises a fixed plate fixed to one side of the shell, a rotating rod rotatably connected to the top of the fixed plate on one side of the shell, a movable shaft rotatably connected to one side of the limiting block, a fixed cylinder fixed to one end of the fixed plate, a connecting cylinder arranged at one end of the fixed cylinder, a connecting part acting on the connecting part, the rotating rod and the movable shaft, a connecting rod movably inserted into one end of the fixed cylinder, a plug disc fixed to one end of the connecting rod inside the movable shaft, a resisting part acting on the plug disc, a rotating part acting on the connecting cylinder, and a plurality of gas outlets evenly arranged at one end of the connecting cylinder.

[0024] Preferably, the connecting part comprises a belt pulley fixed to both ends of the rotating rod extending out of the shell and the outer surface of the rotating rod, and a connecting belt arranged between two adjacent belt pulleys.

[0025] Preferably, the resisting part comprises a second rack arranged at the top of the plug column, a circular gear meshing with the top of the second rack, a limiting groove arranged at the bottom of the second rack on the surface of the plug column, and a resisting strip slidably inserted into the limiting groove, the middle position of the circular gear is fixed to the outer surface of the rotating rod, one end of the connecting rod is fixed to the surface of the second rack, and the resisting strip and the limiting groove are slidably connected.

[0026] Preferably, the rotating part comprises a fourth bevel gear fixedly sleeved on the outer surface of the connecting cylinder, a third bevel gear fixedly sleeved on the other side of the outer surface of the movable shaft, an annular groove arranged at one end of the fixed cylinder, and a sealing plug ring slidably inserted into the annular groove, one end of the sealing plug ring passes through the annular groove and is fixed to the surface of one end of the connecting cylinder, and the third bevel gear and the fourth bevel gear are meshingly connected.

[0027] Preferably, the alternate positioning mechanism further comprises a cleaning assembly, the cleaning assembly comprises a fixed disc fixed to one end of the plug shaft, a second motor fixed in the inner cavity of the plug shaft, a rotating disc arranged at one end of the fixed disc, a plurality of scraper plates arranged at equal intervals around the rotating disc and the fixed disc, an expanding part acting on the scraper plate, and a plug-in part for connecting a plurality of scraper plates, and the output end of the second motor is fixed to the middle position of the rotating disc.

[0028] Preferably, the expansion component comprises a plurality of equidistantly circumferentially distributed rod grooves arranged at one end of the fixed disc, an embedded rod fixed in the inner cavity of the rod groove, a rod sleeve slidingly sleeved on the outer circumferential surface of the embedded rod, a contact rod fixed at one end of the rod sleeve, a connecting strip fixed at one end of the scraper plate, one end of the contact rod extending to the inner cavity of the adjacent position contact port, and one end of the connecting strip being fixed with the surface of the adjacent position rod sleeve.

[0029] The beneficial effects of the present application are as follows:

[0030] 1. The construction method of the present application can slowly push the main transformer into the preset position, avoiding the high requirements of traditional lifting methods on the bearing capacity and space of the foundation, reducing the construction difficulty, and the construction method is simple and easy to operate, only the main transformer channel needs to be compacted and smoothed, without the need for large-scale site modification, greatly improving the construction efficiency. In the entire construction process, the main transformer is always in a supported state, avoiding the safety risks that may be caused by the free fall of the transformer in the traditional lifting method, and also reducing the damage that may be caused to the transformer during the jacking and pushing process, prolonging the service life of the transformer. Compared with the existing construction method, the construction method of the present application is more concise, has lower requirements on the construction environment, and therefore has relatively low cost, which is conducive to saving construction cost and improving installation precision. After the main transformer is positioned by the construction method of the present application, the axis and the center line of the main transformer are adjusted to ensure that they are consistent, thereby improving the installation precision of the transformer and ensuring the stable operation of the power system.

[0031] 2. The present application can limit the cylinder of the hydraulic propulsion device when the output end of the hydraulic propulsion device needs to be moved, and limit the output end of the hydraulic propulsion device when the cylinder of the hydraulic propulsion device needs to be moved, so that the process of pushing the main transformer by the hydraulic propulsion device is more smooth, avoiding the need for the user to manually adjust the hydraulic propulsion device to ensure the continuous operation of the main transformer pushing operation, thereby improving the use convenience of the device. BRIEF DESCRIPTION OF DRAWINGS

[0032] The present application will be further described below with reference to the accompanying drawings.

[0033] Figure 1 is the construction method flow of the hydraulic slip pushing and positioning of the main transformer in the present application Figure 1 ;

[0034] Figure 2 is the construction method flow of the main transformer hydraulic slip propulsion and positioning in the application Figure 2 ;

[0035] Figure 3 is the front view three-dimensional structure schematic diagram of the main transformer hydraulic slip propulsion and positioning device in the application

[0036] Figure 4 is the back view three-dimensional structure schematic diagram of the main transformer hydraulic slip propulsion and positioning device in the application

[0037] Figure 5 is the three-dimensional structure schematic diagram of the local structure of the main transformer hydraulic slip propulsion and positioning device in the application

[0038] Figure 6 is the structure enlarged schematic diagram of A in the application Figure 5

[0039] Figure 7 is the structure enlarged schematic diagram of B in the application Figure 5

[0040] Figure 8 is the structure enlarged schematic diagram of C in the application Figure 5

[0041] Figure 9 is the three-dimensional structure cross-sectional schematic diagram of the shell in the application

[0042] Figure 10 is the three-dimensional structure cross-sectional schematic diagram of the fixed cylinder and the connecting cylinder in the application

[0043] Figure 11 is the three-dimensional structure explosion schematic diagram of the inserting shaft in the application

[0044] Figure 12 is the three-dimensional structure schematic diagram of the scraper and the connecting strip in the application

[0045] Figure 13 is the local structure cross-sectional schematic diagram of the inserting shaft in the application

[0046] ​​​In the figure: 1, rail; 2, hydraulic propulsion device; 3, mounting seat; 4, connecting plate; 5, limiting block; 6, positioning hole; 7, shell; 8, fixed plate; 9, first motor; 10, rotating shaft; 11, incomplete gear; 12, rack; 13, positioning shaft; 14, inserting shaft; 15, rotating rod; 16, first bevel gear; 17, second bevel gear; 18, inserting column; 19, rotating rod; 20, pulley; 21, connecting belt; 22, fixed cylinder; 23, movable shaft; 24, third bevel gear; 25, connecting rod; 26, fourth bevel gear; 27, plug disc; 28, connecting cylinder; 29, air outlet hole; 30, annular groove; 31, sealing plug ring; 32, circular gear; 33, rack; 34, abutting strip; 35, limiting groove; 36, fixed disc; 37, rod groove; 38, embedded rod; 39, rod sleeve; 40, abutting rod; 41, rotating disc; 42, abutting groove; 43, scraper; 44, connecting strip; 45, second motor; 46, arc-shaped groove; 47, arc-shaped plate. DETAILED DESCRIPTION

[0047] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0048] Embodiment one:

[0049] As shown in the drawings, Figure 1 and Figure 2 The main transformer hydraulic slip propulsion in-place construction method of the present application comprises the following steps:

[0050] S1: design and build a special main transformer foundation, the foundation is composed of four long strip-shaped foundations, the length of each foundation is 50 meters, the width is 10 meters, the depth is 3 meters, the material is concrete, and the side close to the channel is integrally poured with the oil collection pool retaining wall concrete to enhance stability;

[0051] S2: before the main transformer enters, the road is leveled and the surrounding retaining wall is leveled and compacted to facilitate the approach of the flat car, and the specific operation is to use a road roller to compact, the compaction frequency is 3 times, and the compaction intensity of each time is 5 tons to ensure the flatness and tightness of the road surface;

[0052] S3: the hydraulic flat car carrying the main transformer can be parked on the side of the main transformer foundation retaining wall, the center of the main transformer on the flat car is basically consistent with the center of the foundation, and then the vehicle is braked, the model of the hydraulic flat car is XYZ-100, the maximum load is 100 tons, and the maximum driving speed is 50 kilometers / hour;

[0053] S4: crossties are erected on the flat car and the main transformer foundation in the "#" form, the flat car and the foundation are on an equal height platform, the material of the crossties is hardwood, the length is 2 meters, the diameter is 0.3 meters, and the number is 4.

[0054] S5: Use four hydraulic jacks to slowly lift the main transformer. The hydraulic jacks are model ABC-400, with a maximum lifting force of 400 tons and a lifting speed of 10 mm / min. After the height of the main transformer exceeds the sleeper platform, insert parallel steel rail 1 at the center of the main transformer foundation platform. The length of steel rail 1 is 50 meters, the width is 0.2 meters, and the material is carbon steel.

[0055] S6: Install a sliding plate between rail 1 and the transformer. The equipment rests on the sliding plate. The sliding plate is made of polytetrafluoroethylene, with a length of 7 meters, a width of 1 meter, and a thickness of 1.2 meters.

[0056] S7: Install hydraulic rail clamps on the track, and use hydraulic propulsion device 2 to slowly push the main transformer forward. During this process, alternately limit the output end and cylinder of hydraulic propulsion device 2 to ensure stable propulsion operation. The model of hydraulic propulsion device 2 is DEF-600, with a maximum propulsion force of 600 tons and a propulsion speed of 10 mm / min. During the jacking process, lay the sleepers and tracks that have passed the main transformer forward until the center of the main transformer axis.

[0057] S8: Slowly and steadily push the main transformer onto the transformer foundation platform. Stop pushing after the horizontal and vertical centers of the main transformer are aligned with the platform.

[0058] S9: Set up the jack placement platform again at the four vertices, and finally lift the main transformer, pull out rail 1, and lower the main transformer to the foundation;

[0059] S10: Remove the rail slide plate and hydraulic propulsion device 2;

[0060] S11: Slowly lift the main transformer with a jack, remove the platform sleepers according to the actual height, and repeat the lifting, sleeper removal, and lowering steps until the main transformer is lowered to the foundation. Finally, fine-tune the main transformer body to ensure that the axis is consistent with the center line of the main transformer. The main transformer positioning work is completed.

[0061] Compared with existing technologies, this technical solution can reduce construction difficulty: The present invention uses a hydraulic sliding propulsion device to lift the main transformer to a certain height, and then slowly pushes the main transformer to the preset position through the hydraulic propulsion device 2, which avoids the high requirements of traditional hoisting methods on the foundation bearing capacity and space, and reduces construction difficulty;

[0062] The construction method is simple and easy to implement, only needs to compact and level the main transformer transport channel, does not need to carry out large-scale site reconstruction, greatly improves the construction efficiency, and can reduce the safety risk, in the whole construction process, the main transformer is always in a supported state, avoiding the safety risk possibly caused by free falling of the transformer in the traditional hoisting method. Meanwhile, the use of the hydraulic slip propulsion equipment also reduces the damage possibly caused to the transformer in the jacking and propulsion process, prolongs the service life of the transformer.

[0063] Compared with the existing hydraulic slip propulsion equipment, the construction method of the application is more concise, has lower requirements for the construction environment, and therefore has relatively low cost, is beneficial to save the construction cost, after the main transformer is positioned, fine adjustment of the main transformer body is further carried out to ensure that the axis is consistent with the center line of the main transformer, thereby improving the installation precision of the transformer and ensuring the stable operation of the power system.

[0064] Embodiment two:

[0065] As shown in Figures 3 to 13 The device for positioning the main transformer by hydraulic slip propulsion of the application is applied to the construction method for positioning the main transformer by hydraulic slip propulsion, and comprises the steel rail 1 in step S6, the hydraulic propulsion device 2 arranged on the top of the steel rail 1, the mounting seat 3 fixed to one side of the bottom of the hydraulic propulsion device 2, the connecting plate 4 fixed to one end of the outer circumferential surface of the output end of the hydraulic propulsion device 2, the limiting block 5 fixed to one end of the inner surface of the connecting plate 4 and both ends of the inner surface of the mounting seat 3, and the alternate positioning mechanism for limiting the hydraulic propulsion device 2, wherein the limiting block 5 is arranged in sliding connection with the middle positions of both ends of the steel rail 1.

[0066] The alternate positioning mechanism comprises a plug-in assembly and a driving assembly.

[0067] Since the advancing operation of the main transformer is carried out by using the hydraulic advancing device 2, the main transformer is placed on the top of the rail, and by extending the output end of the hydraulic advancing device 2, the output end of the hydraulic advancing device 2 can be in contact with the surface of the main transformer and make it slide a certain distance towards the transformer base platform, and then by retracting the hydraulic advancing device 2, the cylinder of the hydraulic advancing device 2 moves towards the output end to restore the original length of the hydraulic advancing device 2, and the above operation is alternately cycled to gradually advance the main transformer intermittently. However, in actual use, when the hydraulic advancing device 2 is retracted and the cylinder of the hydraulic advancing device 2 moves towards the output end, the output end of the hydraulic advancing device 2 is easily separated from the main transformer and moves into the cylinder of the hydraulic advancing device 2. Therefore, the user needs to manually adjust the connection between the retracted output end of the hydraulic advancing device 2 and the main transformer to ensure the continuous advancement of the main transformer. Thus, the advancement of the main transformer is inconvenient. The alternate positioning mechanism limits the cylinder of the hydraulic advancing device 2 when the output end of the hydraulic advancing device 2 needs to move, and limits the output end of the hydraulic advancing device 2 when the cylinder of the hydraulic advancing device 2 needs to move. Thus, the advancement of the main transformer by the hydraulic advancing device 2 is more smooth.

[0068] As shown in Figures 3 to 13 The insertion and fixing assembly includes a housing 7 fixed to one end surface of the connecting plate 4 and the mounting seat 3, a rotating shaft 10 rotatably connected to the top of the inner cavity surface of the housing 7, an incomplete gear 11 fixedly sleeved on the bottom of the outer circumferential surface of the rotating shaft 10, a first rack 12 meshed with the sides away from each other of the two incomplete gears 11, a positioning shaft 13 inserted into the inside of the first rack 12 at adjacent positions, an insertion shaft 14 fixed to one end surface of the first rack 12, and a plurality of positioning holes 6 penetratingly provided at the middle position of the rail 1. The insertion shaft 14 is connected in a penetrating and inserting manner between the adjacent limiting blocks 5. One end of the positioning shaft 13 extends outside the first rack 12 at the adjacent position and is fixed to the inner cavity surface of the housing 7.

[0069] When the output end of the hydraulic advancing device 2 needs to extend in the horizontal direction, the rotating shaft 10 is rotated to make the incomplete gear 11 rotate, so that the incomplete gear 11 and the first rack 12 at the adjacent position are in meshing action, so that the first rack 12 is subjected to the action force and slides in the horizontal direction under the support and limiting action of the positioning shaft 13, so that the insertion shaft 14 near the connecting plate 4 extends out of the inside of the adjacent positioning hole 6, and the insertion shaft 14 near the mounting seat 3 extends into the inside of the positioning hole 6, so that the cylinder of the hydraulic advancing device 2 is in a limited state, and the output end of the hydraulic advancing device 2 can freely extend, so that the hydraulic advancing device 2 can stably contact the surface of the main transformer and stably perform the advancing operation;

[0070] When it is needed to extend the cylinder of the hydraulic propulsion device 2 in horizontal direction, the spigot 14 close to the mounting base 3 is extended out of the outer part of the adjacent position positioning hole 6, and the first bevel gear 16 close to the connecting plate 4 is extended to the inner part of the adjacent position positioning hole 6, so as to avoid the situation that the output end of the hydraulic propulsion device 2 is away from the surface of the main transformer when the cylinder of the hydraulic propulsion device 2 slides in horizontal direction, so as to facilitate the continuous propulsion operation of the main transformer, and the range of movement of the output end of the hydraulic propulsion device 2 and the cylinder of the hydraulic propulsion device 2 is set to the range between two positioning holes 6 in a single movement.

[0071] As shown in Figures 3 to 13 the driving assembly comprises a first motor 9 fixed on the top of one of the housings 7, a rotating rod 15 rotatably connected to the side of the two housings 7 close to each other, a first bevel gear 16 fixedly sleeved on the top of the outer circumferential surface of the rotating shaft 10, a second bevel gear 17 fixedly sleeved on the outer circumferential surface of the rotating rod 15, and a spigot 18 inserted into the inside of one of the rotating rods 15, one side of the spigot 18 is fixed to the surface of the side of the other rotating rod 15, and the first bevel gear 16 and the adjacent second bevel gear 17 are in meshing connection, and the top of one of the rotating shafts 10 penetrates through the adjacent housing 7 and is fixed to the output end of the first motor 9;

[0072] By starting the first motor 9, one of the first bevel gears 16 is rotated, so that one of the rotating rods 15 is rotated under the meshing action between the first bevel gear 16 and the second bevel gear 17, so that the other rotating shaft 10 is rotated under the connection of the spigot 18 and the meshing action between the other first bevel gear 16 and the second bevel gear 17, so that the two rotating shafts 10 can be rotated synchronously, when it is needed to limit the output end of the hydraulic propulsion device 2 and the cylinder of the hydraulic propulsion device 2 alternately, the output end of the first motor 9 can be rotated clockwise and counterclockwise by one hundred and eighty degrees in circulation by control, and the installation angle difference of the two incomplete gears 11 is one hundred and eighty degrees, so that when the output end of the first motor 9 is rotated clockwise and counterclockwise by one hundred and eighty degrees, one of the spigots 14 can move towards the adjacent position positioning hole 6, and the other spigot 14 can move away from the adjacent position positioning hole 6, so as to realize the limiting action of the output end of the hydraulic propulsion device 2 and the cylinder.

[0073] The above method solves the problem that when the cylinder of the hydraulic propulsion device 2 needs to slide horizontally, the output end of the hydraulic propulsion device 2 may separate from the main transformer and move into the cylinder of the hydraulic propulsion device 2, thus requiring the user to manually adjust and reconnect the output end of the hydraulic propulsion device 2 to the main transformer after retraction. However, in actual use, since the device is used in an outdoor environment, some dirt may easily enter the inner cavity of the positioning hole 6 during long-term use. If this dirt is not cleaned in time, it may clump in the inner cavity of the positioning hole 6 and affect the limiting effect on the hydraulic propulsion device 2.

[0074] Therefore, such as Figures 3 to 13 As shown, the alternating positioning mechanism also includes a cleaning component for cleaning the inner cavity of the positioning hole 6. The cleaning component includes a fixed plate 8 fixed to one side of one of the housings 7, a rotating rod 19 rotatably connected to one side of the housing 7 at the top of the fixed plate 8, a movable shaft 23 rotatably connected to one side of one of the limiting blocks 5, a fixed cylinder 22 fixed to one end of the fixed plate 8, a connecting cylinder 28 set at one end of the fixed cylinder 22, a connecting component acting on the rotating rod 15 and the rotating rod 19 and the rotating rod 19 and the movable shaft 23, a connecting rod 25 movably inserted at one end of the fixed cylinder 22, a stopper 27 fixed to one end of the connecting rod 25 inside the movable shaft 23, an abutting component acting on the stopper 27, a rotating component acting on the connecting cylinder 28, and a plurality of air outlets 29 evenly distributed around one end of the connecting cylinder 28.

[0075] When the output end of the hydraulic propulsion device 2 is restricted, the insert shaft 14 extends into the inner cavity of the adjacent positioning hole 6. Since the diameter of the insert shaft 14 is similar to the diameter of the hole in the inner cavity of the limiting block 5, when the insert shaft 14 extends into the inner cavity of the adjacent positioning hole 6, it will abut against the soil placed in the inner cavity of the positioning hole 6 and move towards the outside of the positioning hole 6, thereby cleaning the inner cavity of the positioning hole 6. When the output end of the hydraulic propulsion device 2 is released, it will drive the connecting plate 4 and the adjacent housing 7 to move in the horizontal direction, which will drive the fixed cylinder 22 and the connecting cylinder 28 to move in the horizontal direction. Thus, when the hydraulic propulsion device 2 stops, the connecting cylinder 28 will move to one end of the inner cavity of the positioning hole 6 after the insert shaft 14 has cleaned it.

[0076] When the insertion shaft 14 extends again to the inner cavity of the positioning hole 6 at the front end close to the connecting plate 4, the connecting component is arranged to enable the rotating rod 15 to rotate to enable the rotating rod 19 to rotate the movable shaft 23, the rotating rod 19 rotates to enable the abutting component to drive the connecting rod 25 to move the plug disc 27 to the direction close to the connecting cylinder 28, so that the fixed cylinder 22 and the inner cavity of the connecting cylinder 28 change the air pressure, so that the air flow can be discharged from the air outlet hole 29 to the inner cavity of the positioning hole 6, so that the fine sand dust and the like remaining in the inner cavity of the positioning hole 6 can be blown away under the blowing action of the air flow, and in this process, the rotating component can expand the activity range of the air flow discharged from the air outlet hole 29 to improve the cleaning effect of the sand dust and the like. The inner cavity of the air outlet hole 29 close to the outside of the air outlet hole 29 is provided with a filter screen to avoid external dust into the inside of the connecting cylinder 28.

[0077] As shown in Figures 3 to 13 , the connecting component includes a belt pulley 20 fixed to the outer peripheral surface of the rotating rod 15 extending out of the housing 7 and the rotating rod 19 and the outer peripheral surface of the movable shaft 23, and a connecting belt 21 arranged at the middle position between two adjacent belt pulleys 20.

[0078] When the rotating rod 15 rotates, the rotating rod 19 can rotate under the action of one set of belt pulleys 20 and the connecting belt 21, so that the movable shaft 23 can rotate under the meshing action of the other set of belt pulleys 20 and the connecting belt 21.

[0079] As shown in Figures 3 to 13 , the abutting component includes a second rack 33 arranged at the top of the insertion column 18, a circular gear 32 arranged in meshing with the top of the second rack 33, a limiting groove 35 opened at the bottom of the second rack 33 on the surface of the insertion column 18, and an abutting strip 34 slidingly inserted into the limiting groove 35. The middle position of the circular gear 32 is fixed to the outer peripheral surface of the rotating rod 19, one end of the connecting rod 25 is fixed to the surface of the second rack 33, and the abutting strip 34 is slidingly connected between the limiting groove 35.

[0080] When the rotating rod 19 rotates, the circular gear 32 rotates, so that the circular gear 32 and the second rack 33 mesh, so that the second rack 33 is acted upon and moves in the direction close to or away from the rail 1 under the abutting limitation between the abutting strip 34 and the limiting groove 35, so that the plug disc 27 can reciprocate in the inner cavities of the fixed cylinder 22 and the connecting cylinder 28, so that the air outlet hole 29 can discharge air flow to the inner cavity of the positioning hole 6.

[0081] As shown in Figures 3 to 13As shown, the rotating component includes a fourth bevel gear 26 fixedly sleeved on the outer peripheral surface of the connecting cylinder 28, a third bevel gear 24 fixedly sleeved on the outer peripheral surface of the movable shaft 23 on the other side, an annular groove 30 opened on one end of the fixed cylinder 22, and a sealing plug ring 31 slidably inserted into the inner cavity of the annular groove 30. One end of the sealing plug ring 31 penetrates through the annular groove 30 and is fixed to the surface of one end of the connecting cylinder 28. The third bevel gear 24 and the fourth bevel gear 26 are in meshing connection.

[0082] When the movable shaft 23 rotates, the third bevel gear 24 can be driven to rotate, so that the connecting cylinder 28 can be subjected to a force under the connecting action between the third bevel gear 24 and the fourth bevel gear 26. Thus, the connecting cylinder 28 can rotate when the plug disc 27 moves towards the connecting cylinder 28 under the support and limitation of the annular groove 30 and the sealing plug ring 31, so that the air outlet hole 29 can perform a circular motion, thereby expanding the activity range of the air flow discharged from the air outlet hole 29.

[0083] Although the above-mentioned mode solves the problem that if the accumulated soil in the inner cavity of the positioning hole 6 is not cleaned in time, it will affect the limiting effect of the hydraulic propulsion device 2, when the insertion shaft 14 is inserted into the inner cavity of the positioning hole 6 to push the soil accumulated in the inner cavity of the positioning hole 6 out of the inner cavity of the positioning hole 6, the soil is easy to accumulate at the position close to the inner cavity of the positioning hole 6 on the end of the steel rail 1 away from the shell 7, thereby still causing the end of the inner cavity of the positioning hole 6 to be blocked after the agglomeration is not cleaned for a long time, affecting the limiting effect of the hydraulic propulsion device 2.

[0084] Therefore, as shown, Figures 3 to 13 The alternate positioning mechanism further includes a cleaning assembly, which includes a fixed disc 36 fixed to one end of one of the insertion shafts 14, a second motor 45 fixed to the inner cavity of the insertion shaft 14, a rotating disc 41 provided at one end of the fixed disc 36, a plurality of scrapers 43 provided between the rotating disc 41 and the fixed disc 36 in equidistant circumferential distribution, an expansion component acting on the scrapers 43, and a plug-in component for connecting the plurality of scrapers 43. The output end of the second motor 45 is fixed to the middle position of the rotating disc 41.

[0085] By starting the second motor 45, the rotating disc 41 can rotate by a certain angle, so that the scrapers 43 can expand towards the end of the inner cavity of the positioning hole 6 away from the shell 7 under the action of the expansion component, and cooperate with the plug-in component to scrape off the dust adhering to the surface of the steel rail 1 at the position close to the positioning hole 6 on the end of the shell 7, thereby avoiding the occurrence of the blocking of the end of the inner cavity of the positioning hole 6 away from the shell 7.

[0086] As shown, Figures 3 to 13As shown, the expansion component includes a plurality of rod grooves 37 arranged equidistantly around the position of one end of the fixed disc 36, an embedded rod 38 fixed in the inner cavity of the rod groove 37, a rod sleeve 39 slidingly sleeved on the outer circumferential surface of the embedded rod 38, a contact rod 40 fixed at one end position of the rod sleeve 39, a connecting strip 44 fixed at one end position of the scraper 43, and the other end of the contact rod 40 extends to the inner cavity position of the adjacent position of the contact port 42, and one end of the connecting strip 44 is fixed with the surface of the adjacent position of the rod sleeve 39;

[0087] When the second motor 45 is started to rotate, the rotating disc 41 can be driven to rotate, so that the contact rod 40 can move away from the middle position of the rotating disc 41 under the contact of the inner cavity of the contact port 42 and the limiting action of the embedded rod 38 and the rod sleeve 39 on the contact rod 40, so that the scraper 43 can be moved away from the surface of one end of the rail 1 away from one end of the housing 7 under the connection of the connecting strip 44, so that the accumulated soil near the inner cavity of the positioning hole 6 of the rail 1 can be scraped off by the scraper 43, so that it is no longer attached to the surface of the rail 1 near the inner cavity of the positioning hole 6. After the scraping operation is completed, the output end of the second motor 45 is controlled to reverse rotation so that the scraper 43 is reset, so that the inserted shaft 14 can drive the scraper 43 and the rotating disc 41 to move to the other end through the positioning hole 6.

[0088] As shown in the figure, Figures 3 to 13 The plug-in component includes an arc-shaped groove 46 formed at the end of the scraper 43 away from the rotating disc 41 and an arc-shaped plate 47 slidingly inserted into the arc-shaped groove 46, and one end of the arc-shaped plate 47 passes through the adjacent arc-shaped groove 46 and is fixed with the surface of the adjacent scraper 43;

[0089] When the scraper 43 expands away from the positioning hole 6, the adjacent scrapers 43 will not have gaps under the action of the arc-shaped plate 47, so that the scraping range is a complete annular shape, so that the surface of the rail 1 away from the housing 7 near the positioning hole 6 can be fully scraped, and the movement trajectory of the scraper 43 can be further limited under the contact of the inner cavity of the arc-shaped groove 46 and the adjacent arc-shaped plate 47.

[0090] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for hydraulic slip advancement of a main transformer, characterized in that: The utility model provides a hydraulic propulsion device for steel rail, including steel rail, hydraulic propulsion device set up in the top of steel rail, the mounting seat fixed to one side of the bottom of hydraulic propulsion device, the connecting plate fixed to one end of the output end outer surface of hydraulic propulsion device, the limiting block fixed to one end of the inner surface of connecting plate and the inner surface of mounting seat both ends and be used for defining hydraulic propulsion device's alternate positioning mechanism, limiting block with the middle position of both ends of steel rail is slidably connected arrangement; The alternate positioning mechanism comprises an inserting and fixing assembly and a driving assembly; The inserting and fixing assembly comprises a shell fixed to one end surface of the connecting plate and the mounting seat, a rotating shaft rotatably connected to the top of the inner cavity surface of the shell, an incomplete gear fixedly sleeved to the bottom of the outer peripheral surface of the rotating shaft, a first gear rack meshed to the sides away from each other of the two incomplete gears, a positioning shaft inserted into the inside of the first gear rack at adjacent positions, an inserting shaft fixed to one end surface of the first gear rack, and a plurality of positioning holes passing through and formed in the middle position of the steel rail, the inserting shaft and the limiting block at adjacent positions are connected in a penetrating manner, and one end of the positioning shaft extends out of the first gear rack at adjacent positions and is fixed to the inner cavity surface of the shell. The driving assembly comprises a first motor fixed to the top of one of the shells, a rotating rod rotatably connected to the sides close to each other of the two shells, a first bevel gear fixedly sleeved to the top of the outer peripheral surface of the rotating shaft, a second bevel gear fixedly sleeved to the outer peripheral surface of the rotating rod, and an inserting column inserted into the inside of one of the rotating rods, one side of the inserting column is fixed to the surface of the other rotating rod, the first bevel gear and the second bevel gear at adjacent positions are connected in a meshing manner, and the top of one of the rotating shafts passes through the shell at adjacent positions and is fixed to the output end of the first motor. The alternate positioning mechanism further comprises a cleaning assembly for cleaning the inner cavity of the positioning hole, the cleaning assembly comprises a fixed plate fixed to one side of one of the shells, a rotating rod rotatably connected to one side of one of the shells at the top position of the fixed plate, a movable shaft rotatably connected to one side of one of the limiting blocks, a fixed cylinder fixed to one end position of the fixed plate, a connecting cylinder arranged at one end position of the fixed cylinder, a connecting member acting on the rotating rod, the rotating rod and the movable shaft, a connecting rod movably inserted into one end position of the fixed cylinder, a plug disc fixed to one end of the connecting rod inside the fixed cylinder, a resisting member acting on the plug disc, a rotating member acting on the connecting cylinder, and a plurality of gas outlet holes evenly formed at one end position of the connecting cylinder and arranged in an equidistant surrounding manner. The connecting member comprises a belt pulley fixed to both ends of the rotating rod extending out of the shell and the outer peripheral surface of the rotating rod and one side of the outer peripheral surface of the movable shaft, and a connecting belt arranged at the middle position of the two adjacent belt pulleys.

2. A hydraulic slipper positioning device for a main transformer according to claim 1, characterized in that: The abutting component comprises a second rack gear arranged at the top of the insertion column, a circular gear arranged at the top of the second rack gear, a limiting slot arranged at the bottom of the second rack gear on the surface of the insertion column, and an abutting strip slidingly arranged in the limiting slot.

3. A hydraulic slipper positioning device for a main transformer according to claim 2, characterized in that: The rotating component comprises a fourth bevel gear fixedly sleeved on the outer periphery of the connecting cylinder, a third bevel gear fixedly sleeved on the other side of the outer periphery of the movable shaft, an annular slot arranged at one end of the fixed cylinder, and a sealing plug ring slidingly arranged in the inner cavity of the annular slot. One end of the sealing plug ring penetrates through the annular slot and is fixedly connected with the surface of one end of the connecting cylinder. The third bevel gear and the fourth bevel gear are in meshing connection.

4. A hydraulic slipper positioning device for a main transformer according to claim 1, characterized in that: The alternate positioning mechanism further comprises a cleaning assembly, which comprises a fixed disc fixedly arranged at one end of one of the insertion shafts, a second motor fixedly arranged in the inner cavity of the insertion shaft, a rotating disc arranged at one end of the fixed disc, a plurality of scraping plates arranged at equal intervals and surrounding the rotating disc and the fixed disc, an expanding component acting on the scraping plates, and a plug-in component for connecting the plurality of scraping plates. The output end of the second motor is fixedly connected with the middle position of the rotating disc.

5. A hydraulic slipper positioning device for a main transformer according to claim 4, characterized in that: The expanding component comprises a plurality of rod grooves arranged at equal intervals and surrounding the fixed disc, an embedded rod fixedly arranged in the inner cavity of the rod groove, a rod sleeve slidingly sleeved on the outer periphery of the embedded rod, an abutting rod fixedly arranged at one end of the rod sleeve, a connecting strip fixedly arranged at one end of the scraping plate and penetrating through a plurality of abutting openings arranged at equal intervals and surrounding the surface of the rotating disc. One end of the abutting rod extends to the inner cavity position of the abutting opening at the adjacent position. One end of the connecting strip is fixedly connected with the surface of the rod sleeve at the adjacent position. The plug-in component comprises an arc-shaped slot arranged at one end of the scraping plate away from the rotating disc, and an arc-shaped plate slidingly arranged in the arc-shaped slot. One end of the arc-shaped plate penetrates through the arc-shaped slot at the adjacent position and is fixedly connected with the surface of the scraping plate at the adjacent position.

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