Adjustable supporting device for underground powerhouse of pumped storage power station and using method of adjustable supporting device

Abstract

The invention relates to the technical field of pumped storage power station underground powerhouse tunnels, and discloses an adjustable supporting device for a pumped storage power station underground powerhouse and a using method of the adjustable supporting device. A top supporting assembly is arranged at the top of a supporting frame and located below a side supporting assembly, and the top supporting assembly is used for supporting the top of the pumped storage power station underground powerhouse tunnel; the replacing assembly is arranged on the top supporting assembly and used for replacing the matched top support. One end of a top column is pressed downwards at the same time, so that the other end of the top column abuts against the bottom of a connecting block, one end of a limiting column is separated from the interior of a limiting groove, the other end of the top column abuts against the bottom of the connecting block, the position of the limiting column can be fixed, and a sliding base is pulled to be separated from the interior of a second mounting groove; the second arc-shaped plate can be replaced according to the width of the top of the tunnel, overall supporting of the top of the tunnel is completed, the stability of tunnel supporting of underground powerhouse construction of the pumped storage power station is improved, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pumped storage power station underground powerhouse tunnel, in particular to an adjustable supporting device for pumped storage power station underground powerhouse and a using method thereof. BACKGROUND

[0002] Pumped storage power station is an important power storage and regulation facility, mainly used for balancing power grid load and improving the stability of power system. Its working principle is to use the surplus period of electricity to pump water from the low reservoir to the high reservoir, and then release the water from the high reservoir during the peak of electricity demand, and generate electricity through the water turbine generator set. The tunnel of underground powerhouse is usually composed of main tunnel and branch tunnel, the main tunnel is used to connect the high reservoir and the low reservoir, and the branch tunnel is used for equipment installation and maintenance

[0003] During the construction of the underground powerhouse tunnel, supporting mechanism needs to be used for support. The supporting structure is usually temporarily built inside the tunnel and does not have the functions of adjustment and movement. Moreover, temporary construction needs to consume a lot of time and manpower. Therefore, an adjustable supporting device for pumped storage power station underground powerhouse and a using method thereof are proposed. SUMMARY

[0004] The purpose of the present application is to provide an adjustable supporting device for pumped storage power station underground powerhouse and a using method thereof to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: an adjustable supporting device for pumped storage power station underground powerhouse, comprising

[0006] a supporting frame;

[0007] an adjusting assembly arranged on the supporting frame;

[0008] a side support assembly arranged on the top of the supporting frame, the side support assembly being used for supporting the top side of the pumped storage power station underground powerhouse tunnel;

[0009] a top support assembly arranged on the top of the supporting frame and below the side support assembly, the top support assembly being used for supporting the top of the pumped storage power station underground powerhouse tunnel;

[0010] a replacement assembly arranged on the top support assembly, the replacement assembly being used for replacing the adapted top support.

[0011] As preferred, the side support assembly comprises two guide rods, a screw rod and two support seats, the two guide rods are fixedly connected to the inside of the support frame, the screw rod is rotatably connected to the inside of the support frame and located between the two guide rods, the two support seats are movably sleeved on the outer sides of the two guide rods respectively, the top of each of the two support seats is provided with a first mounting groove, a rotating shaft is rotatably connected to the inside of the first mounting groove, a second fixing plate is fixedly sleeved on the outer side of the rotating shaft, a first arc-shaped plate is fixedly connected to the top of the second fixing plate, a servo motor is installed on one side of the support frame, the output shaft of the servo motor is fixedly connected to one end of the screw rod extending to the outer side of the support frame, and a fine adjustment assembly is arranged on one side of each of the two support seats.

[0012] As preferred, the outer side of the screw rod is provided with thread segments opposite to each other, and the two support seats are connected to the outer side of the screw rod through threads.

[0013] As preferred, the fine adjustment assembly comprises two fixed blocks and a worm, the two fixed blocks are fixedly connected to one side of the support seat, the worm is rotatably connected between the two fixed blocks, one end of the rotating shaft extending to the outer side of the support seat is fixedly connected with a worm wheel, and the worm wheel is meshingly connected to the outer side of the worm.

[0014] As preferred, the roof support assembly comprises a support plate, two guide columns and a connecting seat, the support plate is fixedly connected to the inner side of the support frame and sleeved on the outer sides of the guide rods and the screw rod respectively, the two guide columns are movably penetrated through the top of the support plate respectively, the connecting seat is fixedly connected to the top ends of the two guide columns, the top of the connecting seat is provided with a second mounting groove, a sliding seat is installed in the second mounting groove, a second arc-shaped plate is fixedly connected to the top of the sliding seat, a multi-stage hydraulic cylinder is installed on the top of the support plate, and the piston rod of the multi-stage hydraulic cylinder is fixedly connected to the bottom of the connecting seat.

[0015] As preferred, the replacement assembly comprises a limiting column, a connecting block and a cavity, one end of the limiting column is movably penetrated through the bottom of the connecting seat, the connecting block is movably sleeved on the outer side of the limiting column, the connecting block is fixedly connected to the bottom of the connecting seat, the cavity is formed in the inside of the connecting block, a fixed shaft is fixedly connected to the bottom of the outer side of the connecting block, top columns are hingedly connected to the two ends of the fixed shaft, a groove is formed in one side of the top column, the fixed shaft is connected to the inside of the groove, a telescopic spring is sleeved on the outer side of the limiting column, a limiting groove is formed in the bottom of the sliding seat, and the limiting column is inserted into the inside of the limiting groove.

[0016] As preferred, one end of the telescopic spring is fixedly connected to the outer side of the limiting column, and the other end of the telescopic spring abuts against the bottom of the cavity.

[0017] As preferred, the adjusting assembly comprises a first support, a second support and a housing; the first support is sleeved on the outer side of the second support, the housing is fixedly connected to the bottom of the second support, the two sides of the first support away from each other are provided with two hydraulic cylinders, the piston rods of the hydraulic cylinders are hinged to the top of the housing, the other two sides of the first support are fixedly connected with first fixing plates, the first fixing plates are threadedly connected with threaded columns, the two sides of the housing are fixedly connected with limiting plates, one end of the threaded column abuts against the top of the limiting plate, and the bottom of the housing is provided with a track wheel.

[0018] As preferred, one end of the sliding base is provided with a threaded hole, a threaded rod is threadedly connected in the threaded hole, a fixing ring is fixedly sleeved on the outer side of the threaded rod, the top of the connecting seat is provided with an arc-shaped groove, the fixing ring is located in the arc-shaped groove, one end of the threaded rod is provided with an internal hexagonal hole, and an arc-shaped limiting plate is fixedly connected to the rear side of the arc-shaped groove at one end of the connecting seat.

[0019] The application further provides a use method of the adjustable supporting device for underground power house of pumped storage power station.

[0020] S1, the piston rods of the two hydraulic cylinders are elongated to drive the first support to move upwards, so that the first support slides on the outer side of the second support, thereby adjusting the height of the supporting frame, then the threaded column is rotated in a forward direction, one end of the threaded column abuts against the top of the limiting plate, and the position of the first support on the outer side of the second support can be locked;

[0021] S2, when supporting and protecting the top of the tunnel, the worm is driven to rotate by personnel, the worm drives the worm gear to rotate, the worm gear drives the second fixing plate on the rotating shaft to rotate, the angle of the first arc-shaped plate is adjusted, the first arc-shaped plate can better fit the side of the top of the tunnel, then the lead screw is driven to rotate by the output shaft of the servo motor, so that the two supporting seats are driven to move in opposite directions, the first arc-shaped plate abuts against the side of the top of the tunnel, and the support of the side of the top of the tunnel is completed.

[0022] S3, before supporting the top of the tunnel, by simultaneously pressing one end of the top column, so that the other end of the top column is in contact with the bottom of the connecting block, so that one end of the limiting column is separated from the inside of the limiting slot, then by inserting the tool into the inside of the internal hexagonal hole, the tool drives the threaded rod to rotate in reverse, the fixed ring of the threaded rod is in contact with one side of the arc-shaped limiting plate, at this time the slide is moved in the inside of the connecting seat, so that the slide is separated from the inside of the connecting seat, the second arc-shaped plate can be replaced, the slide on the second arc-shaped plate is inserted into the inside of the second mounting slot, then the top column is moved, so that one end of the limiting column is inserted into the inside of the limiting slot, the horizontal position of the slide is fixed, when supporting, the second arc-shaped plate on the connecting seat is moved upward by the multi-stage hydraulic cylinder, so that the second arc-shaped plate is in contact with the top of the tunnel between the two first arc-shaped plates, and the overall support of the top of the tunnel is completed.

[0023] Compared with the prior art, the above technical scheme has the following technical effects:

[0024] 1、The first arc-shaped plate can be better matched with the side of the top of the tunnel, and the stability of the device support is improved, the two support seats are moved in opposite directions by the lead screw, so that the first arc-shaped plate is in contact with the side of the top of the tunnel, thereby completing the support of the side of the top of the tunnel.

[0025] 2、The other end of the top column is in contact with the bottom of the connecting block, the position of the limiting column can be fixed, the slide is pulled out of the inside of the second mounting slot, the second arc-shaped plate can be replaced, the second arc-shaped plate can be replaced according to the width of the top of the tunnel, the overall support of the top of the tunnel is completed, the stability of the tunnel support of the pumped storage power station underground powerhouse construction is improved, time and labor are saved.

[0026] 3、The first support is moved upward by the extension of the piston rod of the two hydraulic cylinders, so that the first support slides outside the second support, thereby adjusting the height of the support frame to match tunnels of different heights for use, and the threaded column is in contact with the top of the limiting plate by forward rotation, so that the position of the first support outside the second support is locked, thereby achieving the effect of insurance, preventing the first support from falling when the hydraulic cylinder fails, and improving the safety of the device.

[0027] 4. This invention inserts a tool into the interior of the hexagonal socket, causing the threaded rod to rotate in the opposite direction. The retaining ring of the threaded rod abuts against one side of the arc-shaped limiting plate. At this time, the slide moves inside the connecting seat, allowing the slide to disengage from the connecting seat. This enables the slide to be disassembled quickly, preventing the slide from becoming difficult to disassemble after the second arc-shaped plate is compressed, and effectively improving the efficiency of replacing the second arc-shaped plate. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the bottom structure of the present invention;

[0031] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0032] Figure 4 For the present invention Figure 3 Enlarged structural diagram of area A in the middle;

[0033] Figure 5 This is a schematic diagram of the right-side structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the support plate structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the connector structure of the present invention;

[0036] Figure 8 For the present invention Figure 7 A magnified structural diagram of area A in the middle.

[0037] Explanation of reference signs: 1, support frame; 11, first support column; 12, second support column; 13, shell; 14, track wheel; 15, hydraulic cylinder; 16, first fixed plate; 17, threaded column; 18, limiting plate; 21, guide rod; 22, lead screw; 23, support seat; 24, first mounting groove; 25, rotating shaft; 26, second fixed plate; 27, first arc-shaped plate; 28, worm wheel; 29, fixed block; 210, worm; 211, servo motor; 31, support plate; 32, guide column; 33, connecting seat; 34, second mounting groove; 35, sliding seat; 36, second arc-shaped plate; 37, multi-stage hydraulic cylinder; 41, limiting column; 42, connecting block; 43, cavity; 44, extension spring; 45, fixed shaft; 46, jacking column; 47, groove; 48, limiting groove; 51, threaded hole; 52, threaded rod; 53, arc-shaped groove; 54, fixed ring; 55, internal hexagonal hole; 56, arc-shaped limiting plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to understand and read the disclosed content by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, and therefore do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the disclosed technical content.

[0040] EMBODIMENT

[0041] Please refer to Figures 1-8 The present application provides a technical solution: a adjustable supporting device for underground powerhouse of pumped storage power station, comprising a support frame 1; an adjusting assembly is arranged on the support frame 1; a side support assembly is arranged at the top of the support frame 1, and the side support assembly is used for supporting the top side of the tunnel of the underground powerhouse of the pumped storage power station; a top support assembly is arranged at the top of the support frame 1 and below the side support assembly, and the top support assembly is used for supporting the top of the tunnel of the underground powerhouse of the pumped storage power station; a replacement assembly is arranged on the top support assembly, and the replacement assembly is used for replacing the adapted top support.

[0042] The side support assembly can support the side of the top of the tunnel; the side support assembly comprises two guide rods 21, a lead screw 22 and two support seats 23, the two guide rods 21 are fixedly connected to the inside of the support frame 1, the lead screw 22 is rotatably connected to the inside of the support frame 1 and located between the two guide rods 21, the two support seats 23 are movably sleeved on the outer sides of the two ends of the two guide rods 21 respectively, the top of each of the two support seats 23 is provided with a first mounting groove 24, a rotating shaft 25 is rotatably connected in the first mounting groove 24, a second fixed plate 26 is fixedly sleeved on the outer side of the rotating shaft 25, a first arc-shaped plate 27 is fixedly connected to the top of the second fixed plate 26, a servo motor 211 is installed on one side of the support frame 1, the output shaft of the servo motor 211 is fixedly connected to one end of the lead screw 22 extending to the outer side of the support frame 1, a fine adjustment assembly is arranged on one side of each of the two support seats 23, the outer side of the lead screw 22 is provided with thread segments opposite to each other, and the two support seats 23 are threadedly connected to the outer side of the lead screw 22; the lead screw 22 is driven to rotate by the output shaft of the servo motor 211, and the two support seats 23 are driven to move in opposite directions through the thread segments opposite to each other arranged on the outer side of the lead screw 22, so that the first arc-shaped plate 27 abuts against the side of the top of the tunnel.

[0043] The fine adjustment assembly can ensure that the first arc-shaped plate 27 can better fit the side of the top of the tunnel and improve the stability of the device support; the fine adjustment assembly comprises two fixed blocks 29 and a worm 210, the two fixed blocks 29 are fixedly connected to one side of the support seat 23, the worm 210 is rotatably connected between the two fixed blocks 29, one end of the rotating shaft 25 extending to the outer side of the support seat 23 is fixedly connected with a worm wheel 28, and the worm wheel 28 is meshingly connected to the outer side of the worm 210; the worm 210 is driven to rotate by a person, the worm 210 drives the worm wheel 28 to rotate, the worm wheel 28 drives the second fixed plate 26 on the rotating shaft 25 to rotate, the first arc-shaped plate 27 is driven to rotate by the second fixed plate 26, and the angle of the first arc-shaped plate 27 is adjusted, so that the direction of the first arc-shaped plate 27 can be adjusted according to the radian of the top of the tunnel, and the first arc-shaped plate 27 is ensured to fit the side of the top of the tunnel.

[0044] The stability of the tunnel for constructing the underground powerhouse of the pumped storage power station can be improved by setting the supporting component; the supporting component comprises a supporting plate 31, two guide columns 32 and a connecting seat 33, the supporting plate 31 is fixedly connected to the inner side of the supporting frame 1 and is respectively sleeved on the outer sides of the guide rod 21 and the lead screw 22, the two guide columns 32 are movably penetrated into the top of the supporting plate 31, the connecting seat 33 is fixedly connected to the top ends of the two guide columns 32, the top of the connecting seat 33 is provided with a second mounting groove 34, the second mounting groove 34 is internally provided with a sliding seat 35, the top of the sliding seat 35 is fixedly connected with a second arc-shaped plate 36, the top of the supporting plate 31 is provided with a multi-stage hydraulic cylinder 37, the piston rod of the multi-stage hydraulic cylinder 37 is fixedly connected to the bottom of the connecting seat 33; the second arc-shaped plate 36 on the connecting seat 33 is driven by the multi-stage hydraulic cylinder 37 to move upwards, so that the second arc-shaped plate 36 is abutted against the top of the tunnel between the two first arc-shaped plates 27, and the overall support of the top of the tunnel is completed.

[0045] The support of the tunnel with different widths can be met by setting the replacement component; the replacement component comprises a limiting column 41, a connecting block 42 and a cavity 43, one end of the limiting column 41 is movably penetrated into the bottom of the connecting seat 33, the connecting block 42 is movably sleeved on the outer side of the limiting column 41, the connecting block 42 is fixedly connected to the bottom of the connecting seat 33, the cavity 43 is formed in the inner side of the connecting block 42, the outer side bottom of the connecting block 42 is fixedly connected with a fixed shaft 45, the both ends of the fixed shaft 45 are hingedly provided with a top column 46, one side of the top column 46 is provided with a groove 47, the fixed shaft 45 is connected to the inner side of the groove 47, the outer side of the limiting column 41 is sleeved with a telescopic spring 44, the bottom of the sliding seat 35 is provided with a limiting groove 48, the limiting column 41 is inserted into the inner side of the limiting groove 48, one end of the telescopic spring 44 is fixedly connected to the outer side of the limiting column 41, and one end of the telescopic spring 44 is abutted against the bottom of the cavity 43; one end of the top column 46 is simultaneously pressed downwards, so that the other end of the top column 46 is abutted against the bottom of the connecting block 42, the top column 46 can drive the limiting column 41 to move in the inner sides of the connecting seat 33 and the sliding seat 35 respectively, so that one end of the limiting column 41 is separated from the inner side of the limiting groove 48, the position of the limiting column 41 can be fixed by abutting the other end of the top column 46 against the bottom of the connecting block 42, at this time, the telescopic spring 44 is in a compressed state, and the sliding seat 35 is separated from the inner side of the second mounting groove 34 by being pulled, so that the second arc-shaped plate 36 can be replaced;

[0046] The sliding seat 35 on the second arc-shaped plate 36 is inserted into the inner side of the second mounting groove 34, then the top column 46 is moved, so that the other end of the top column 46 is separated from the bottom of the connecting block 42, then the telescopic spring 44 drives the limiting column 41 to reset, so that one end of the limiting column 41 is inserted into the inner side of the limiting groove 48, and the transverse position of the sliding seat 35 is fixed.

[0047] The adjusting assembly is arranged to match the tunnels with different heights; the adjusting assembly comprises a first support 11, a second support 12 and a shell 13, the first support 11 is sleeved on the outer side of the second support 12, the shell 13 is fixedly connected to the bottom of the second support 12, two hydraulic cylinders 15 are mounted on the two sides of the first support 11 away from each other, the piston rods of the hydraulic cylinders 15 are hinged to the top of the shell 13, the piston rods of the two hydraulic cylinders 15 are elongated to drive the first support 11 to move upwards, so that the first support 11 slides on the outer side of the second support 12, thereby adjusting the height of the support frame 1.

[0048] The first support 11 is fixedly connected with a first fixed plate 16 on the other two sides, the first fixed plate 16 is threadedly connected with a threaded column 17, the two sides of the shell 13 are fixedly connected with a limiting plate 18, one end of the threaded column 17 abuts against the top of the limiting plate 18, and the bottom of the shell 13 is provided with a track wheel 14; during the height adjustment of the support frame 1, the first support 11 drives the threaded column 17 to move upwards through the first fixed plate 16, so that the bottom end of the threaded column 17 is separated from the top of the limiting plate 18, then the threaded column 17 is rotated in the forward direction, and one end of the threaded column 17 abuts against the top of the limiting plate 18, so that the position of the first support 11 on the outer side of the second support 12 can be locked, thereby achieving the effect of safety, preventing the first support 11 from falling when the hydraulic cylinder 15 fails, and improving the safety of the device.

[0049] One end of the sliding seat 35 is provided with a threaded hole 51, the threaded hole 51 is threadedly connected with a threaded rod 52, the outer side of the threaded rod 52 is fixedly sleeved with a fixed ring 54, one end of the top of the connecting seat 33 is provided with an arc-shaped groove 53, the fixed ring 54 is located in the arc-shaped groove 53, one end of the threaded rod 52 is provided with an internal hexagonal hole 55, and one end of the connecting seat 33 is fixedly connected with an arc-shaped limiting plate 56 on the rear side of the arc-shaped groove 53; by inserting a tool into the internal hexagonal hole 55, the tool drives the threaded rod 52 to rotate in the reverse direction, the fixed ring 54 of the threaded rod 52 abuts against one side of the arc-shaped limiting plate 56, at this time the sliding seat 35 moves in the connecting seat 33, so that the sliding seat 35 is separated from the inside of the connecting seat 33, the disassembly of the sliding seat 35 can be quickly completed, and after the second arc-shaped plate 36 is pressed, the problem that the sliding seat 35 is difficult to disassemble is avoided.

[0050] The working principle or structural principle is that when in use, the hydraulic station is started through the switch group control, the piston rod of the two hydraulic cylinders 15 is elongated to drive the first support column 11 to move upwards, the first support column 11 slides outside the second support column 12, thereby adjusting the height of the support frame 1 to match the use of tunnels of different heights, in the process, the first fixed plate 16 drives the threaded column 17 to move upwards, so that the bottom end of the threaded column 17 is separated from the top of the limiting plate 18, then the threaded column 17 is rotated in the forward direction, one end of the threaded column 17 abuts against the top of the limiting plate 18, the position of the first support column 11 outside the second support column 12 can be locked, thereby playing an insurance effect, preventing the first support column 11 from falling when the hydraulic cylinder 15 fails, and improving the safety of the device;

[0051] When supporting and protecting the top of the tunnel, the worm 210 is driven to rotate by personnel, the worm 210 drives the worm gear 28 to rotate, the worm gear 28 drives the second fixed plate 26 on the rotating shaft 25 to rotate, thereby driving the first arc-shaped plate 27 to rotate through the second fixed plate 26, thereby adjusting the angle of the first arc-shaped plate 27, the direction of the first arc-shaped plate 27 can be adjusted according to the radian of the top of the tunnel, so that the first arc-shaped plate 27 can better fit the side of the top of the tunnel, and the stability of the device support is improved, then the servo motor 211 is started through the switch group control, the output shaft of the servo motor 211 drives the lead screw 22 to rotate, the lead screw 22 drives the two support seats 23 to move in opposite directions through the opposite threaded segments arranged outside, so that the first arc-shaped plate 27 abuts against the top side of the tunnel, thereby completing the support of the top side of the tunnel;

[0052] Before supporting the top of the tunnel, the second arc-shaped plate 36 is replaced according to the width of the top of the tunnel, one end of the jacking column 46 is pressed down at the same time, so that the other end of the jacking column 46 abuts against the bottom of the connecting block 42, the jacking column 46 can pull the limiting column 41 to move in the interiors of the connecting seat 33 and the sliding seat 35 respectively, so that one end of the limiting column 41 is separated from the interior of the limiting groove 48, the other end of the jacking column 46 abuts against the bottom of the connecting block 42, the position of the limiting column 41 can be fixed, at this time the extension spring 44 is in a compressed state, then a tool is inserted into the interior of the inner hexagonal hole 55, the tool drives the threaded rod 52 to rotate in the reverse direction, the fixed ring 54 of the threaded rod 52 abuts against one side of the arc-shaped limiting plate 56, at this time the sliding seat 35 moves in the interior of the connecting seat 33, so that the sliding seat 35 is separated from the interior of the connecting seat 33, the second arc-shaped plate 36 can be replaced, the disassembly of the sliding seat 35 can be quickly completed;

[0053] The sliding seat 35 on the second arc-shaped plate 36 is inserted into the second mounting groove 34, then the top column 46 is pried, the other end of the top column 46 is separated from the bottom of the connecting block 42, then the extension spring 44 drives the limiting column 41 to reset, one end of the limiting column 41 is inserted into the limiting groove 48, the transverse position of the sliding seat 35 is fixed, when supporting, the hydraulic station is started through the switch group control, the multi-stage hydraulic cylinder 37 drives the second arc-shaped plate 36 on the connecting seat 33 to move upwards, the second arc-shaped plate 36 abuts against the top of the tunnel between the two first arc-shaped plates 27, the overall support of the top of the tunnel is completed, and the stability of the tunnel of the pumped storage power station underground powerhouse construction is improved.

[0054] The application further provides a use method of the adjustable supporting device for the pumped storage power station underground powerhouse.

[0055] S1, the first support 11 is driven to move upwards by the piston rod elongation of the two hydraulic cylinders 15, the first support 11 slides outside the second support 12, so that the height of the supporting frame 1 is adjusted, then the first support 11 is locked outside the second support 12 by the forward rotation of the threaded column 17, one end of the threaded column 17 abuts against the top of the limiting plate 18.

[0056] S2, when supporting and protecting the top of the tunnel, the worm 210 is driven to rotate by personnel, the worm 210 drives the worm wheel 28 to rotate, the worm wheel 28 drives the second fixed plate 26 on the rotating shaft 25 to rotate, the angle of the first arc-shaped plate 27 is adjusted, the first arc-shaped plate 27 can better fit the side of the top of the tunnel, then the lead screw 22 is driven to rotate by the output shaft of the servo motor 211, the two supporting seats 23 are driven to move in opposite directions, the first arc-shaped plate 27 abuts against the side of the top of the tunnel, and the support of the side of the top of the tunnel is completed.

[0057] S3, before supporting the top of the tunnel, by simultaneously pressing one end of the top column 46, so that the other end of the top column 46 is in contact with the bottom of the connecting block 42, so that one end of the limiting column 41 is separated from the inside of the limiting groove 48, then by inserting the tool into the inside of the hexagonal hole 55, the tool drives the threaded rod 52 to rotate in the opposite direction, the fixed ring 54 of the threaded rod 52 is in contact with one side of the arc-shaped limiting plate 56, at this time the sliding seat 35 moves in the inside of the connecting seat 33, so that the sliding seat 35 is separated from the inside of the connecting seat 33, that is, the second arc-shaped plate 36 can be replaced, the sliding seat 35 on the second arc-shaped plate 36 is inserted into the second installation groove 34, then the top column 46 is moved, so that one end of the limiting column 41 is inserted into the inside of the limiting groove 48, the transverse position of the sliding seat 35 is fixed, when supporting, the second arc-shaped plate 36 on the connecting seat 33 is driven by the multi-stage hydraulic cylinder 37 to move upward, so that the second arc-shaped plate 36 is in contact with the top of the tunnel between the two first arc-shaped plates 27, the overall support of the top of the tunnel is completed.

[0058] Those skilled in the art will appreciate that features recited in various embodiments and / or claims of the present application can be combined or / and integrated, even if such combinations or integrations are not explicitly recited in the present application. In particular, features recited in various embodiments and / or claims of the present application can be combined and / or integrated in various combinations, without departing from the spirit and teachings of the present application. All such combinations and / or integrations fall within the scope of the present application.

Claims

1. An adjustable support device for underground power house of pumped storage power station, characterized in that: The utility model relates to a support frame (1); Adjusting assembly, which is arranged on the support frame (1); Side support assembly, which is arranged on the top of the support frame (1), is used for the top side support of the tunnel of the underground powerhouse of the pumped storage power station; Top support assembly, which is arranged on the top of the support frame (1) and is below the side support assembly, is used for the top support of the tunnel of the underground powerhouse of the pumped storage power station; Replacement assembly, which is arranged on the top support assembly, is used for replacing the adaptive top support. The side support assembly includes two guide rods (21), a lead screw (22) and two support seats (23), the two guide rods (21) are fixedly connected to the inside of the support frame (1), the lead screw (22) is rotatably connected to the inside of the support frame (1) and is located between the two guide rods (21), the two support seats (23) are movably sleeved on the outer sides of the two ends of the two guide rods (21) respectively, the top of each of the two support seats (23) is provided with a first mounting groove (24), a rotating shaft (25) is rotatably connected to the inside of the first mounting groove (24), a second fixed plate (26) is fixedly sleeved on the outer side of the rotating shaft (25), a first arc-shaped plate (27) is fixedly connected to the top of the second fixed plate (26), a servo motor (211) is installed on one side of the support frame (1), the output shaft of the servo motor (211) is fixedly connected to one end of the lead screw (22) extending to the outside of the support frame (1), and a fine adjustment assembly is arranged on one side of each of the two support seats (23).

2. The adjustable support device for underground powerhouse of pumped storage power station according to claim 1, characterized in that: The outer side of the lead screw (22) is provided with opposite threaded segments, and the two support seats (23) are connected to the outer side of the lead screw (22) through threads.

3. The adjustable support device for underground powerhouse of pumped storage power station according to claim 2, characterized in that: The fine adjustment assembly includes two fixed blocks (29) and a worm (210), the two fixed blocks (29) are fixedly connected to one side of the support seat (23), the worm (210) is rotatably connected between the two fixed blocks (29), one end of the rotating shaft (25) extends to the outside of the support seat (23) and is fixedly connected with a worm wheel (28), and the worm wheel (28) is meshedly connected to the outer side of the worm (210).

4. The adjustable support device for underground powerhouse of pumped storage power station according to claim 2, characterized in that: ​ 5. The adjustable support device for underground powerhouse of pumped storage power station according to claim 2, characterized in that: The top support assembly comprises a support plate (31), two guide columns (32) and a connecting seat (33), the support plate (31) is fixedly connected to the inner side of the support frame (1) and is sleeved on the outer sides of the guide rod (21) and the lead screw (22) respectively, the two guide columns (32) are movably penetrated into the top of the support plate (31), the connecting seat (33) is fixedly connected to the top ends of the two guide columns (32), a second mounting groove (34) is formed in the top of the connecting seat (33), a sliding seat (35) is mounted in the second mounting groove (34), a second arc-shaped plate (36) is fixedly connected to the top of the sliding seat (35), a multi-stage hydraulic cylinder (37) is mounted on the top of the support plate (31), and the piston rod of the multi-stage hydraulic cylinder (37) is fixedly connected to the bottom of the connecting seat (33).

6. The adjustable support device for underground power house of pumped storage power station according to claim 5, characterized in that: The replacement assembly comprises a limiting column (41), a connecting block (42) and a cavity (43), one end of the limiting column (41) is movably penetrated into the bottom of the connecting seat (33), the connecting block (42) is movably sleeved on the outer side of the limiting column (41), the connecting block (42) is fixedly connected to the bottom of the connecting seat (33), the cavity (43) is formed in the inner side of the connecting block (42), a fixed shaft (45) is fixedly connected to the outer bottom of the connecting block (42), top columns (46) are hingedly connected to the two ends of the fixed shaft (45), a groove (47) is formed in one side of the top column (46), the fixed shaft (45) is connected to the inner side of the groove (47), a telescopic spring (44) is sleeved on the outer side of the limiting column (41), and a limiting groove (48) is formed in the bottom of the sliding seat (35), the limiting column (41) is inserted into the limiting groove (48).

7. The adjustable support device for underground power house of pumped storage power station according to claim 6, characterized in that: One end of the telescopic spring (44) is fixedly connected to the outer side of the limiting column (41), and the other end of the telescopic spring (44) abuts against the bottom of the cavity (43).

8. The adjustable support device for underground powerhouse of pumped storage power station according to claim 1, characterized in that: The adjusting assembly comprises a first support column (11), a second support column (12) and a shell (13), the first support column (11) is sleeved on the outer side of the second support column (12), the shell (13) is fixedly connected to the bottom of the second support column (12), two hydraulic cylinders (15) are mounted on the two sides away from each other of the first support column (11), the piston rods of the hydraulic cylinders (15) are hingedly connected to the top of the shell (13), first fixed plates (16) are fixedly connected to the other two sides of the first support column (11), threaded columns (17) are threadedly connected to the first fixed plates (16), limiting plates (18) are fixedly connected to the two sides of the shell (13), one end of the threaded column (17) abuts against the top of the limiting plate (18), and a track wheel (14) is mounted on the bottom of the shell (13).

9. The adjustable support device for underground powerhouse of pumped storage power station according to claim 5, characterized in that: One end of the sliding seat (35) is provided with a threaded hole (51), the inside of the threaded hole (51) is connected with a threaded rod (52) through threads, the outer side of the threaded rod (52) is fixedly sleeved with a fixed ring (54), one end of the top of the connecting seat (33) is provided with an arc-shaped groove (53), the fixed ring (54) is located in the inside of the arc-shaped groove (53), one end of the threaded rod (52) is provided with an internal hexagonal hole (55), one end of the connecting seat (33) is fixedly connected with an arc-shaped limiting plate (56) on the back side of the arc-shaped groove (53).

10. A method of using the adjustable support device for underground power house of pumped storage power station according to any one of claims 1-9, characterized in that: It comprises the following steps: S1, the piston rod of the two hydraulic cylinders (15) is elongated to drive the first support column (11) to move upwards, so that the first support column (11) slides outside the second support column (12), thereby adjusting the height of the support frame (1), then the threaded column (17) is rotated in a forward direction, one end of the threaded column (17) abuts against the top of the limiting plate (18), which can lock the position of the first support column (11) outside the second support column (12); S2, when supporting and protecting the top of the tunnel, the worm (210) is rotated by personnel, the worm (210) drives the worm gear (28) to rotate, so that the worm gear (28) drives the second fixed plate (26) on the rotating shaft (25) to rotate, the angle of the first arc-shaped plate (27) is adjusted, so that the first arc-shaped plate (27) can better fit the side of the top of the tunnel, then the lead screw (22) is rotated by the output shaft of the servo motor (211), so that the two support bases (23) move in opposite directions, so that the first arc-shaped plate (27) abuts against the side of the top of the tunnel, completing the support of the side of the top of the tunnel; S3, before supporting the top of the tunnel, one end of the jacks (46) is pressed down at the same time, so that the other end of the jacks (46) abuts against the bottom of the connecting block (42), so that one end of the limiting column (41) is separated from the inside of the limiting groove (48), then the tool is inserted into the internal hexagonal hole (55), the tool drives the threaded rod (52) to rotate in the opposite direction, the fixed ring (54) of the threaded rod (52) abuts against one side of the arc-shaped limiting plate (56), at this time the sliding seat (35) moves in the inside of the connecting seat (33), so that the sliding seat (35) is separated from the inside of the connecting seat (33), the second arc-shaped plate (36) can be replaced, the sliding seat (35) on the adaptive second arc-shaped plate (36) is inserted into the inside of the second mounting groove (34), then the jacks (46) are moved, so that one end of the limiting column (41) is inserted into the inside of the limiting groove (48), the transverse position of the sliding seat (35) is fixed, when supporting, the second arc-shaped plate (36) on the connecting seat (33) is moved upwards by the multi-stage hydraulic cylinder (37), so that the second arc-shaped plate (36) abuts against the top of the tunnel between the two first arc-shaped plates (27), completing the overall support of the top of the tunnel.

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