CN220128562U - Hub overhauling and installing tool for tubular hydroelectric generating set - Google Patents

Abstract

The utility model discloses a hub overhaul and installation tool for a tubular turbine generator set, which comprises a hoisting frame main body and a stable receiving device. According to the utility model, the stable bearing device is arranged, the vertical placement stability of the hub can be enhanced under the pre-bearing cooperation of the bearing frame and the bearing groove, the compression rings arranged on the left side and the right side can be stably driven to move relatively under the driving of the adjusting component arranged at the lower end of the bearing frame, so that the compression rings arranged on the two sides can realize the propping clamping support of the hub, the phenomenon that the hub falls down easily due to the stress during the subsequent installation is ensured, the auxiliary stable cooperation of the hub installation process is realized, the advantage of reducing the occurrence of the offset phenomenon is realized, the stable component is arranged in the middle of the compression ring, the stable plate, the first side plate and the second side plate are combined, the inclination prevention stability of the middle section of the compression ring can be assisted, the improvement of the supporting stability of the compression rings arranged on the two sides is ensured, and the integral stability enhancement of the compression rings arranged on the two sides is realized, and the stress inclination phenomenon is reduced.

Description

Hub overhauling and installing tool for tubular hydroelectric generating set

Technical Field

The utility model relates to the field of hydraulic generators, in particular to a hub overhaul and installation tool for a tubular hydraulic generator set.

Background

The through-flow turbine is a novel unit for developing low-head hydraulic resources, is suitable for heads below 25m, is a horizontal-shaft water turbine with a straight flow channel, has a similar shape to an axial flow type, and also has fixed paddles and rotating paddles, and the water flow in the flow channel basically moves along the axial direction without turning, so that the water passing capacity and the hydraulic efficiency of the unit are greatly improved;

the through-flow turbine can be divided into a full through-flow type and a half through-flow type (also divided into a vertical shaft type, a shaft extension type and a bulb type) according to the structural characteristics and the arrangement mode, and the application ranges are different;

when the bulb tubular hydroelectric generating set is overhauled, the hydraulic turbine hub is required to be disassembled for overhauling, so that the high efficiency of overhauling the hub is improved, and the hoisting overhauling matching of the hub and the installation matching of subsequent hub parts are realized by a hoisting tool more often;

however, due to the fact that through-flow turbine hubs are special in size, large in weight, complex in internal structure and small in tolerance range of fit dimensions, when the hoisting tool is used for hoisting and detecting the hub, the support body is matched, the bearing and detecting cooperation of the turbine hubs is achieved, the support body connected with the hoisting tool is usually lack of certain stabilizing measures, when the hub is placed, the phenomenon of deflection easily occurs, and therefore the overall maintenance or installation efficiency of the hub is affected.

Disclosure of Invention

Therefore, in order to solve the defects, the utility model provides a hub overhaul and installation tool for a tubular hydroelectric generating set.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a through-flow hydroelectric set wheel hub overhauls installation frock, includes hoisting frame main part, hoisting frame main part upper end left side meets and has the guide arm, and hoisting frame main part upper end right side rotates and be connected with the screw rod, hoisting frame main part top left and right sides all vertically installs the guide rail, and the guide rail that both sides were established and xarm left and right sides lower extreme is sliding connection mutually, the screw rod front side is connected with the motor, xarm left and right sides all is equipped with hoisting machine main part, and the corresponding lifting hook that is connected with in hoisting machine main part bottom that both sides were established, still including locating the firm adapting unit in hoisting frame main part lower extreme middle part, firm adapting unit including fastening in the bottom plate in hoisting frame main part lower extreme middle part, locate the adapting unit in bottom plate upper end middle part, set up in adapting groove in adapting unit lower extreme, meet in adjusting part left and right sides upper end and arrange the firm subassembly in the middle part of clamping ring.

Preferably, the adjusting component comprises a connecting plate fixedly arranged at the lower end of the bearing frame, a chute arranged in the middle of the connecting plate, a transmission structure in the middle of the chute in a transmission manner, connecting arms rotatably connected to the left side and the right side of the upper end of the transmission structure, and a sliding block connected to the other side of the connecting arms and in sliding connection with the left side and the right side of the chute, wherein the middle of the upper end of the sliding block is connected with the compression ring.

Preferably, the transmission structure comprises a rotary table connected to the middle part of the chute in a transmission way, a servo motor connected to the middle part of the lower end of the rotary table, a movable plate connected to the upper end of the rotary table in a transmission way and a transmission groove arranged in the middle part of the movable plate, and the movable plate is in transmission connection with the rotary table through the transmission groove arranged in the middle part.

Preferably, the stabilizing component comprises a stabilizing plate inserted in the outer side of the middle part of the compression ring, a first side plate, a second side plate, a lock shaft connected to the lower ends of the first side plate and the second side plate, a notch formed in the upper ends of the first side plate and the second side plate, a limiting block welded on the left side and the right side of the upper end of the second side plate, a pin shaft correspondingly inserted in the middle part of the front side of the limiting block, and a locking ring screwed on the front side of the pin shaft, wherein the first side plate and the second side plate are fixedly connected with the stabilizing plate through the lock shaft arranged at the lower ends of the first side plate and the second side plate, and the limiting block and the pin shaft are inserted into the upper end of the first side plate.

Preferably, the receiving groove is arranged in the middle of the upper end of the receiving frame in an inner groove shape, and the inner wall of the receiving groove is polished in a smooth chamfer shape.

Preferably, the press rings are symmetrically arranged left and right along the upper end of the bearing frame, and the press rings arranged on two sides are arranged in a semi-arc strip shape.

Preferably, the sliding groove is formed in a T-shaped groove shape along the middle of the connecting plate, and the front side and the rear side of the sliding groove are both in an open-type shape.

Preferably, the stabilizing components are symmetrically arranged left and right along the upper end of the bearing frame, and the upper ends of the first side plate and the second side plate are propped against each other to form a rectangular block.

The utility model has the beneficial effects that:

advantage 1: according to the utility model, the stable bearing device is arranged, so that the vertical placement stability of the hub can be enhanced under the pre-bearing cooperation of the bearing frame and the bearing groove, and the compression rings arranged on the left side and the right side can be stably driven to move relatively under the drive of the adjusting component arranged at the lower end of the bearing frame, so that the compression rings arranged on the two sides realize the propping clamping support of the hub, the phenomenon that the hub falls down due to falling is not easy to bear during the subsequent installation, and the advantages of assisting in the stable cooperation of the hub installation process and reducing the occurrence of offset phenomenon are achieved.

Advantage 2: according to the utility model, the stabilizing component is arranged in the middle of the compression ring, and the stabilizing plate, the first side plate and the second side plate are combined, so that the inclination prevention stabilization of the middle section of the compression ring can be realized in an auxiliary manner, the stability improvement of the compression ring supports arranged on two sides is ensured, and the advantages of the overall stability enhancement of the compression rings arranged on two sides and the reduction of the stress inclination phenomenon are achieved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a firm receiving device according to the present utility model;

FIG. 3 is a schematic view of a solid portion of the fastening adapter of the present utility model;

FIG. 4 is a schematic perspective view of an adjustment assembly of the present utility model;

FIG. 5 is a perspective split schematic view of the transmission structure of the present utility model;

FIG. 6 is a schematic view of a stabilizing assembly according to the present utility model;

fig. 7 is a schematic view of a three-dimensional disassembly structure of the stabilizing assembly of the present utility model.

Wherein: the lifting frame comprises a lifting frame body-1, a guide rod-2, a screw rod-3, a guide rail-4, a motor-5, a cross arm-6, a lifting machine body-7, a lifting hook-8, a stable bearing device-9, a bottom plate-91, a bearing frame-92, a bearing groove-93, an adjusting component-94, a connecting plate-941, a sliding groove-942, a transmission structure-9 a, a turntable-9 a1, a servo motor-9 a2, a moving plate-9 a3, a transmission groove-9 a4, a connecting arm-943, a sliding block-944, a compression ring-95, a stable component-96, a stable plate-961, a first side plate-962, a second side plate-963, a locking shaft-964, a notch-965, a limiting block-966, a pin-967 and a locking ring-968.

Detailed Description

In order to further explain the technical scheme of the utility model, the following is explained in detail through specific examples.

Referring to fig. 1, the utility model provides a hub overhaul installation tool for a tubular hydroelectric generating set, which comprises a hoisting frame main body 1, wherein a guide rod 2 is connected to the left side of the upper end of the hoisting frame main body 1, a screw rod 3 is rotationally connected to the right side of the upper end of the hoisting frame main body 1, guide rails 4 are longitudinally arranged on the left and right sides of the top of the hoisting frame main body 1, the guide rails 4 arranged on the two sides are in sliding connection with the lower ends of the left and right sides of a cross arm 6, the front side of the screw rod 3 is connected with a motor 5, hoisting machine main bodies 7 are arranged on the left and right sides of the cross arm 6, lifting hooks 8 are correspondingly connected to the bottoms of the hoisting machine main bodies 7 arranged on the two sides, and a stable bearing device 9 arranged in the middle of the lower end of the hoisting frame main body 1 is further provided.

Referring to fig. 2-3, the stable supporting device 9 in this embodiment includes a bottom plate 91 fixedly connected to the middle of the lower end of the lifting frame body 1 for supporting and matching, a supporting frame 92 provided at the middle of the upper end of the bottom plate 91 for supporting and matching with a hub, a supporting groove 93 provided at the middle of the supporting frame 92, an adjusting component 94 provided at the lower end of the supporting frame 92 for compressing and stably matching, a compression ring 95 correspondingly connected to the upper ends of the left and right sides of the adjusting component 94 for stably clamping the hub, and a stable component 96 mounted at the middle of the lower end of the compression ring 95 and slidably supporting against the upper end of the supporting frame 92.

The bearing groove 93 is formed in the middle of the upper end of the bearing frame 92 in an inner groove shape, and the inner wall of the bearing groove 93 is polished in a smooth chamfer shape, so that the bearing groove 93 is ensured to assist in realizing the vertical placement of the hub; the clamping rings 95 are symmetrically arranged left and right along the upper end of the bearing frame 92, the clamping rings 95 arranged on the two sides are arranged in a semi-arc strip shape, the clamping rings 95 arranged on the two sides are correspondingly matched with bulb-shaped hubs, and auxiliary stability and anti-offset are realized.

Referring to fig. 4-5, the adjusting assembly 94 in this embodiment includes a connecting plate 941 transversely and fixedly connected to the lower end of the supporting frame 92 for supporting, a sliding chute 942 provided in the middle of the connecting plate 941 for realizing transverse and longitudinal movement guiding cooperation, a transmission structure 9a in transmission connection with the middle of the sliding chute 942, a connecting arm 943 rotatably connected to the left and right sides of the upper end of the transmission structure 9a for realizing push-pull transmission cooperation, and a sliding block 944 connected to one side of the connecting arm 943 away from the transmission structure 9a and slidably connected to the inside of the left and right sides of the sliding chute 942, wherein the sliding block 944 is integrally provided in an L-shaped configuration, and the middle of the upper end of the sliding block 944 is connected to the pressure ring 95.

Further, the transmission structure 9a includes a rotary table 9a1 embedded in the middle lower end of the chute 942 to realize circumferential rotation, a cylinder is integrally fixed at the upper end of the left side of the rotary table 9a1, a servo motor 9a2 connected to the middle of the lower end of the rotary table 9a1 is connected to the upper end of the rotary table 9a1 and longitudinally embedded in the moving plate 9a3 in the middle of the chute 942, a rectangular groove-shaped transmission groove 9a4 is transversely formed in the middle of the moving plate 9a3, and the moving plate 9a3 is in transmission connection with the rotary table 9a1 through the transmission groove 9a4 formed in the middle.

The sliding groove 942 is formed in a T-shaped groove along the middle of the connecting plate 941, and the front side and the rear side of the sliding groove 942 are both in an open-mouth shape, so that the sliding groove 942 is ensured to realize the stability of longitudinally moving and transversely moving correspondingly to the moving plate 9a3 and the sliding block 944.

Referring to fig. 6-7, the stabilizing component 96 in this embodiment includes a stabilizing plate 961 inserted outside the middle of the compression ring 95 and propped against the upper end of the receiving frame 92, a first side plate 962 and a second side plate 963 symmetrically disposed on the front and rear sides of the stabilizing plate 961, the overall structure of the first side plate 962 and the second side plate 963 is consistent, meanwhile, the middle of the lower ends of the first side plate 962 and the second side plate 963 is transversely provided with a groove, lock shafts 964 vertically inserted into the inner portions of the transverse grooves formed in the lower ends of the first side plate 962 and the second side plate 963 respectively, the bottoms of the lock shafts 964 are in threaded connection with the stabilizing plate 961, notches 965 formed on opposite sides of the upper ends of the first side plate 962 and the second side plate 963 are integrally formed in a semicircular groove shape, limiting blocks 966 symmetrically welded on the left and right sides of the upper ends of the second side plate 963 are longitudinally correspondingly inserted into pin shafts 967 on the front ends of the limiting blocks 966, the front ends of the two sides of the pin shafts 967 are correspondingly provided with external threads, the lock shafts 964 are respectively screwed on the front sides of the pin shafts 967, the lock rings 8 are screwed to the front sides of the external threads of the pin shafts 967, and the inner sides of the limiting blocks 966 are inserted into the pin shafts 967, and the inner sides of the first side plate 967.

Specifically, the stabilizing assemblies 96 are symmetrically arranged left and right along the upper end of the bearing frame 92, and the upper ends of the first side plate 962 and the second side plate 963 are propped against each other to form a rectangular block, so that the upper ends of the first side plate 962 and the second side plate 963 are ensured to be stably propped against each other to coincide, and auxiliary stabilizing and anti-offset activities are realized.

The working principle is as follows:

when overhauling and installing the hub of the hydroelectric generating set, the hub can be connected with the hoisting machine main bodies 7 arranged on the left side and the right side of the cross arm 6, even if the lifting hooks 8 correspondingly connected with the bottoms of the hoisting machine main bodies 7 arranged on the left side and the right side are hooked with the left side and the right side of the hub, then the hoisting machine main bodies 7 correspondingly arranged are driven to realize the whole lifting and installing movement of the hub, so that the whole suspension of the hub can be realized, the detection of interface position data can be realized by workers, and whether the interfaces arranged on the outer side of the hub meet the installation requirements of follow-up fan blades can be detected;

when the fan blades and the wheel hubs are stably installed, the motor 5 arranged on the right side of the upper end of the lifting frame main body 1 can be driven to enable the motor 5 to rotate the rear-side connecting screw rod 3, the cross arm 6 which is in threaded connection with the outer side of the screw rod 3 rotates along with the screw rod 3, the guide rod 2 and the guide rail 4 which are in sliding connection with the left side and the right side can be inserted along the lower end of the left side, smooth backward movement is realized, the wheel hubs are integrally moved to the upper end of the bearing frame 92 arranged in the stable bearing device 9, then the lifting frame main body 7 is driven again to integrally drive the lifting frame main body 7 to descend the wheel hubs, the wheel hubs are placed to the upper end of the bearing frame 92 and are propped against the bearing groove 93 arranged in the middle of the upper end of the bearing frame 92, stable vertical placement movement of the wheel hubs is realized, and the phenomenon of shaking of the wheel hubs is not easy to appear when the installation movement is performed later, and the installation process is influenced;

in order to further improve the firmness of the integral installation of the hub, the adjusting component 94 arranged at the lower end of the bearing frame 92 can be driven, namely, the servo motor 9a2 arranged in the adjusting component 94 can enable the servo motor 9a2 to realize the anticlockwise rotation of the top connected turntable 9a1, the cylinder integrally fastened at the upper left end of the turntable 9a1 can be in driving connection with the transmission groove 9a4 arranged in the middle of the movable plate 9a3 along the rotating groove 942, so that the movable plate 9a3 moves forwards along the inside of the sliding groove 942, and the connecting arms 943 connected to the left side and the right side of the upper end of the movable plate 9a3 are rotated through the forward movement of the movable plate 9a3, so that the outside is correspondingly connected with the pulling of the sliding blocks 944, and the sliding blocks 944 symmetrically arranged at the left side and the right side can realize the transversely synchronous relative movement along the inside of the sliding groove 942, and further, the compression ring 95 correspondingly spliced with the upper ends of the sliding blocks at the two sides can move towards the middle of the bearing groove 93 to contact with the outside of the hub, so that the clamping movement is realized, the whole body is enabled to further guarantee the stable and stable installation of the hub, the hub is enabled to fall down, the stable installation phenomenon is reduced, and the stable installation phenomenon is realized;

and when the clamping ring 95 moves transversely relatively to the outside of the hub, the stabilizing assembly 96 arranged in the middle can be synchronously driven to move, the stabilizing plate 961, the first side plate 962 and the second side plate 963 are arranged in the stabilizing assembly 96 to form a lower part, the middle part of the stabilizing plate 961 and the notch 965 arranged at the upper ends of the first side plate 962 and the second side plate 963 can be enabled to realize the enhancement of the stability of the middle part of the clamping ring 95, the occurrence of the phenomenon of the stress inclination of the clamping ring 95 is reduced, secondly, the locking shaft 964 is matched, the first side plate 962 and the second side plate 963 can be stably and correspondingly connected with the stability of the upper ends of the front side and the rear side of the stabilizing plate 963, and meanwhile, the second side plate 963 can be stably inserted into the inner side of the upper end of the first side plate 962 through the limiting block 966 arranged at the left side and the right side of the upper end, the first side plate 962 is enabled to be stably attached to the upper end of the second side plate 968, the front side of the pin 967 is enabled to be in threaded connection with the front side of the two sides, the first side plate 962 and the upper end of the second side plate 963 are enabled to be firmly combined, the occurrence of the phenomenon of the stress inclination of the clamping ring 95 is reduced, the phenomenon of the clamping ring 95 is enabled to be stably realized, the stability of the clamping ring is enabled to be stably arranged to be enabled to realize the stability of the clamping ring is improved, and the stability of the clamping ring is improved, the stability of the clamping ring is realized, and the stability of the stability is improved, and the stability of the hub is realized.

The utility model provides a hub overhaul mounting tool for a tubular hydroelectric generating set, which is provided with a stable bearing device, wherein the bearing frame 92 and a bearing groove 93 are pre-bearing matched, the vertical placement stability of a hub can be enhanced, and a pressing ring 95 arranged at the left side and the right side can be stably driven to move relatively under the driving of an adjusting component 94 arranged at the lower end of the bearing frame 92, so that the pressing rings 95 arranged at the two sides realize the propping clamping support of the hub, the phenomenon that the hub falls down easily due to falling is avoided during the subsequent mounting, the auxiliary stable matching of the hub mounting process is achieved, the advantage of reducing the occurrence of offset phenomenon is achieved, the middle part of the pressing ring 95 is provided with a stable component 96, the middle section of the pressing ring 95 is stably prevented from inclining, the supporting stability of the pressing rings 95 arranged at the two sides is improved, and the integral stability enhancement of the pressing rings 95 arranged at the two sides is realized, and the advantage of reducing the stress inclination phenomenon is achieved.

Claims (8)

1. The utility model provides a tubular turbine generator set wheel hub overhauls installation frock, includes hoist frame main part (1), hoist frame main part (1) upper end left side meets and has guide arm (2), and hoist frame main part (1) upper end right side rotates and be connected with screw rod (3), hoist frame main part (1) top left and right sides all installs guide rail (4) vertically, and both sides set up guide rail (4) and xarm (6) left and right sides lower extreme and be connected with sliding connection, screw rod (3) front side is connected with motor (5), xarm (6) left and right sides all are equipped with hoist machine main part (7), and hoist machine main part (7) bottom that both sides set up is corresponding to be connected with lifting hook (8);

the method is characterized in that: the lifting frame is characterized by further comprising a stable bearing device (9) arranged at the middle part of the lower end of the lifting frame main body (1), wherein the stable bearing device (9) comprises a bottom plate (91) fastened at the middle part of the lower end of the lifting frame main body (1), a bearing frame (92) arranged at the middle part of the upper end of the bottom plate (91), a bearing groove (93) arranged at the middle part of the bearing frame (92), an adjusting component (94) arranged at the lower end of the bearing frame (92), a pressing ring (95) connected to the upper ends of the left side and the right side of the adjusting component (94) and a stable component (96) arranged at the middle part of the lower end of the pressing ring (95).

2. The through-flow hydroelectric generating set hub overhaul mounting tool according to claim 1, wherein: the adjusting component (94) comprises a connecting plate (941) fixedly arranged at the lower end of the bearing frame (92), a chute (942) formed in the middle of the connecting plate (941), a transmission structure (9 a) connected to the middle of the chute (942) in a transmission mode, a connecting arm (943) rotatably connected to the left side and the right side of the upper end of the transmission structure (9 a), and a sliding block (944) connected to the other side of the connecting arm (943) and the left side and the right side of the chute (942) in a sliding mode, wherein the middle of the upper end of the sliding block (944) is connected with the compression ring (95).

3. The through-flow hydroelectric generating set hub overhaul mounting tool according to claim 2, wherein: the transmission structure (9 a) comprises a rotary table (9 a 1) connected to the middle of the chute (942), a servo motor (9 a 2) connected to the middle of the lower end of the rotary table (9 a 1), a movable plate (9 a 3) connected to the upper end of the rotary table (9 a 1) in a transmission manner, and a transmission groove (9 a 4) formed in the middle of the movable plate (9 a 3), wherein the movable plate (9 a 3) is in transmission connection with the rotary table (9 a 1) through the transmission groove (9 a 4) formed in the middle.

4. The through-flow hydroelectric generating set hub overhaul mounting tool according to claim 1, wherein: the utility model discloses a firm subassembly (96) including peg graft in firm board (961) in clamping ring (95) middle part outside, locate first curb plate (962) and second curb plate (963) of firm board (961) front and back both sides, meet in lock axle (964) of first curb plate (962) and second curb plate (963) lower extreme, and lock axle (964) and firm board (961) fastening connection are established through the lower extreme to first curb plate (962) and second curb plate (963), set up notch (965) in first curb plate (962) and second curb plate (963) upper end, weld stopper (966) in the left and right sides of second curb plate (963) upper end and corresponding peg graft round pin axle (967) in round pin axle (968) of stopper (966) front side middle part and threaded connection in round pin axle (967), stopper (966) all insert inside first curb plate (962) upper end.

5. The through-flow hydroelectric generating set hub overhaul mounting tool according to claim 1, wherein: the bearing groove (93) is arranged in the middle of the upper end of the bearing frame (92) in an inner groove shape, and the inner wall of the bearing groove (93) is polished in a smooth chamfer shape.

6. The through-flow hydroelectric generating set hub overhaul mounting tool according to claim 1, wherein: the compression rings (95) are symmetrically arranged left and right along the upper end of the bearing frame (92), and the compression rings (95) arranged on two sides are arranged in a semi-arc strip shape.

7. The through-flow hydroelectric generating set hub overhaul mounting tool according to claim 2, wherein: the sliding chute (942) is arranged in a T-shaped groove along the middle of the connecting plate (941), and the front side and the rear side of the sliding chute (942) are both in an open-type unclosed state.

8. The through-flow hydroelectric generating set hub overhaul mounting tool according to claim 4, wherein: the stabilizing components (96) are symmetrically arranged left and right along the upper end of the bearing frame (92), and the upper ends of the first side plate (962) and the second side plate (963) are propped against each other to form a rectangular block shape.