Disc spring hoisting device of GCB operating mechanism

Abstract

A GCB operating mechanism disc spring hoisting device comprises a top hoisting plate, longitudinal rods, limiting plates and hoisting rings, at least three longitudinal rods are arranged on the edge of the lower side of the top hoisting plate in an annular array mode, the limiting plates are detachably installed at the lower ends of the longitudinal rods through bolts, the upper ends of the longitudinal rods are fixedly connected with the top hoisting plate, and connecting plates are arranged at the lower ends of the longitudinal rods; bolt holes are formed in the limiting plate, corresponding holes are formed in the connecting plate, and bolts penetrate through the bolt holes and the corresponding holes to mount the limiting plate on the lower side of the connecting plate; and the limiting plate radially extends towards the central axis of the top lifting plate for a certain distance, so that the disc spring can be conveniently lifted through lifting equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance tools for operating mechanisms of power stations, in particular to a disc spring hoisting device for a GCB operating mechanism. Background Art

[0002] GCB is a generator circuit breaker used in power stations. The operating mechanism is used to control the on and off of the generator circuit breaker. The operating mechanism currently used is a hydraulic disc spring operating mechanism. After a cycle of use, the operating mechanism needs to be maintained, which involves the removal and installation of the disc spring. The disc spring is composed of multiple disc spring sheets stacked axially. Since the disc spring sheets are heavy and the number is large, it is not convenient to carry them manually. Therefore, a lifting device for disc springs is designed. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, and to provide a disc spring lifting device for a GCB operating mechanism. When lifting, the limit plate is first removed, and the combination of the top lifting plate and the longitudinal rod is put on the outside of the disc spring. After the disc spring enters the area enclosed by the longitudinal rod, the limit plate is installed on the lower end of the longitudinal rod. In this way, the disc spring is limited within the area enclosed by the longitudinal rod, which is convenient for lifting the disc spring by lifting equipment.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a GCB operating mechanism disc spring lifting device, including a top hanging plate, a longitudinal rod, a limit plate and a lifting ring, the lower edge of the top hanging plate is provided with at least three longitudinal rods in a circular array, the lower end of the longitudinal rod is detachably mounted with a limit plate by bolts, the upper end of the longitudinal rod is fixedly connected to the top hanging plate, the lower end of the longitudinal rod is provided with a connecting plate, the limit plate is provided with bolt holes, the connecting plate is provided with corresponding holes, the bolts pass through the bolt holes and the corresponding holes, and the limit plate is installed on the lower side of the connecting plate; the limit plate radially extends a distance toward the central axis of the top hanging plate.

[0005] The lifting ring is installed on a connecting seat, which is provided with a lifting ring hole. The lifting ring is movably connected to the lifting ring hole. A hanging rod is provided at one end of the connecting seat away from the lifting ring hole. The hanging rod passes through the top hanging plate. A pad and a nut are installed on the hanging rod at the lower side of the top hanging plate.

[0006] The top hanging plate includes a center sleeve, a reinforcement plate and a bottom plate. The center sleeve is installed in the center of the bottom plate, the reinforcement plate is fixedly installed on the bottom plate, and the reinforcement plate is also fixedly connected to the center sleeve. The number and installation position of the reinforcement plate correspond to the longitudinal rods. A center hole is provided on the center sleeve, and the center hole also passes through the bottom plate, and the hanging rod passes through the center hole.

[0007] At least one arc-shaped member is fixedly installed between adjacent longitudinal rods.

[0008] The limiting plate is provided with baffles on both sides of the bolt hole.

[0009] The bottom of the limiting plate is provided with ribs.

[0010] An inclined surface is arranged at one end of the rib plate facing the central axis of the top hanging plate.

[0011] A rib plate is fixedly mounted on the upper end of the longitudinal rod, and the rib plate is fixedly connected to the top hanging plate.

[0012] The utility model has the following beneficial effects:

[0013] 1. The top hanging plate of the utility model is used to lift all the longitudinal rods through the lifting rings. The longitudinal rods are surrounded to form a space for accommodating the disc spring. When the longitudinal rods are inserted into the outside of the disc springs, the limiting plates are installed to the lower ends of the longitudinal rods. In this way, the disc springs are limited in the area surrounded by the longitudinal rods, which is convenient for lifting the disc springs by lifting equipment.

[0014] 2. In the utility model, at least one arc-shaped member is fixedly installed between adjacent longitudinal rods to improve the structural strength of the longitudinal rods and prevent the longitudinal rods from being deformed when the disc springs are hoisted.

[0015] 3. The limit plate of the utility model is provided with baffles on both sides of the bolt hole to prevent the limit plate from rotating arbitrarily after being installed on the lower side of the connecting plate. After the baffles are provided, the limit plate can be connected to the connecting plate with only one bolt, thereby improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the limiting plate of the utility model.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the lifting ring of the utility model.

[0021] In the figure, the top hanging plate 10, the center sleeve 11, the reinforcing plate 12, and the bottom plate 13;

[0022] Longitudinal rod 20, rib plate 21, connecting plate 22;

[0023] Arc-shaped member 30;

[0024] Limiting plate 40, bolt hole 41, baffle plate 42, rib plate 43, inclined surface 44;

[0025] A lifting ring 50 , a connecting seat 51 , a lifting ring hole 52 , a hanging rod 53 , a backing plate 54 , and a nut 55 . DETAILED DESCRIPTION

[0026] See also Figure 1-4 A GCB operating mechanism disc spring lifting device includes a top hanging plate 10, a longitudinal rod 20, a limit plate 40 and a lifting ring 50. The lower edge of the top hanging plate 10 is provided with at least three longitudinal rods 20 in a circular array. The lower end of the longitudinal rod 20 is detachably mounted with the limit plate 40 by bolts. The upper end of the longitudinal rod 20 is fixedly connected to the top hanging plate 10. The lower end of the longitudinal rod 20 is provided with a connecting plate 22. The limit plate 40 is provided with a bolt hole 41. The connecting plate 22 is provided with a corresponding hole. The bolt passes through the bolt hole 41 and the corresponding hole to install the limit plate 40 on the lower side of the connecting plate 22. The limit plate 40 radially extends a distance toward the central axis of the top hanging plate 10. The top hanging plate 10 is used to lift all the longitudinal rods 20 through the lifting ring 50. The longitudinal rods 20 enclose a space for accommodating the disc spring. When the longitudinal rods 20 are inserted into the outside of the disc spring, the limiting plate 40 is installed on the lower end of the longitudinal rods 20, so that the disc spring is limited in the area enclosed by the longitudinal rods 20, which is convenient for lifting the disc spring by lifting equipment. In this embodiment, the lifting ring 50 is welded at the top center of the top hanging plate 10.

[0027] See also Figure 2 , 4 The lifting ring 50 is installed on the connecting seat 51, and the connecting seat 51 is provided with a lifting ring hole 52. The lifting ring 50 is movably connected with the lifting ring hole 52. The connecting seat 51 is provided with a hanging rod 53 at one end away from the lifting ring hole 52. The hanging rod 53 passes through the top hanging plate 10. The hanging rod 53 is provided with a pad 54 and a nut 55 on the lower side of the top hanging plate 10. Through the above structure, the lifting ring 50 is assembled and connected with the top hanging plate 10.

[0028] The top hanging plate 10 can be made of circular or triangular steel plate.

[0029] In a preferred embodiment, see Figure 2The top hanging plate 10 includes a center sleeve 11, a reinforcing plate 12 and a bottom plate 13. The center sleeve 11 is installed at the center of the bottom plate 13. The reinforcing plate 12 is fixedly installed on the bottom plate 13, and the reinforcing plate 12 is also fixedly connected to the center sleeve 11. The number and installation position of the reinforcing plate 12 correspond to the longitudinal rods 20. The center sleeve 11 is provided with a center hole, which penetrates the bottom plate 13 at the same time, and the hanging rod 53 passes through the center hole. The bottom plate 13 serves to connect the longitudinal rods 20, the reinforcing plate 12 serves to enhance the structural strength of the bottom plate 13, and the center sleeve 11 facilitates the installation of the lifting ring 50. Through the above structure, the top hanging plate 10 is made lighter.

[0030] See also Figure 1 , 2 At least one arc-shaped member 30 is fixedly installed between adjacent longitudinal rods 20 to improve the structural strength of the longitudinal rod 20 and prevent the longitudinal rod 20 from deforming when the disc spring is hoisted. In this embodiment, two arc-shaped members 30 are fixedly installed between adjacent longitudinal rods 20. Specifically, the two ends of the arc-shaped member 30 are respectively welded to the adjacent longitudinal rods 20.

[0031] See also Figure 2 , 3 The stop plate 40 is provided with baffles 42 on both sides of the bolt hole 41 to prevent the stop plate 40 from rotating arbitrarily after being installed on the lower side of the connecting plate 22. After the baffles 42 are provided, the stop plate 40 can be connected to the connecting plate 22 with only one bolt.

[0032] Furthermore, a rib 43 is provided at the bottom of the limiting plate 40 to enhance the structural strength of the limiting plate 40 and prevent the limiting plate 40 from deforming when the disc spring is hoisted.

[0033] For further information, see Figure 3 The rib plate 43 is provided with an inclined surface 44 at one end thereof facing the central axis of the top hanging plate 10. The rib plate 43 is provided with an inclined surface 44, so that the limiting plate 40 is conveniently inserted between the upper and lower adjacent disc springs when the disc springs are hoisted in layers.

[0034] See also Figure 1 , 2 A rib plate 21 is fixedly installed at the upper end of the longitudinal rod 20, and the rib plate 21 is fixedly connected to the top hanging plate 10 to improve the structural strength of the longitudinal rod 20 and prevent the longitudinal rod 20 from deforming when the disc spring is lifted.

[0035] The working principle or action process of the utility model is as follows:

[0036] When the disc spring needs to be hoisted, first remove the limit plate 40, hook the lifting hook of the lifting equipment on the lifting ring 50, and use the lifting equipment to cover the combination of the top lifting plate and the longitudinal rod to the outside of the disc spring. After the disc spring enters the area enclosed by the longitudinal rod, install the limit plate 40 to the lower end of the longitudinal rod. In this way, the disc spring is limited in the area enclosed by the longitudinal rod. Then, the disc spring is hoisted by the lifting equipment, and the weight of the disc spring falls on the limit plate 40 during hoisting.

Claims

1. GCB operating mechanism disc spring lifting device, characterized by: The invention comprises a top hanging plate (10), a longitudinal rod (20), a limit plate (40) and a hanging ring (50), wherein at least three longitudinal rods (20) are arranged in a circular array at the lower edge of the top hanging plate (10), the lower ends of the longitudinal rods (20) are detachably mounted with the limit plate (40) by means of bolts, the upper ends of the longitudinal rods (20) are fixedly connected to the top hanging plate (10), the lower ends of the longitudinal rods (20) are provided with a connecting plate (22), the limit plate (40) is provided with a bolt hole (41), the connecting plate (22) is provided with a corresponding hole, the bolts pass through the bolt hole (41) and the corresponding hole, and the limit plate (40) is installed on the lower side of the connecting plate (22); the limit plate (40) radially extends a distance toward the central axis of the top hanging plate (10).

2. The GCB operating mechanism disc spring hoisting device according to claim 1 is characterized in that: The lifting ring (50) is installed on the connecting seat (51). The connecting seat (51) is provided with a lifting ring hole (52). The lifting ring (50) is movably connected to the lifting ring hole (52). The connecting seat (51) is provided with a lifting rod (53) at one end away from the lifting ring hole (52). The lifting rod (53) passes through the top hanging plate (10). A pad (54) and a nut (55) are installed on the lifting rod (53) at the lower side of the top hanging plate (10).

3. The disc spring hoisting device for the GCB operating mechanism according to claim 2 is characterized in that: The top hanging plate (10) comprises a center sleeve (11), a reinforcing plate (12) and a bottom plate (13); the center sleeve (11) is installed at the center of the bottom plate (13); the reinforcing plate (12) is fixedly installed on the bottom plate (13); and the reinforcing plate (12) and the center sleeve (11) are also fixedly connected; the number and installation position of the reinforcing plates (12) correspond to those of the longitudinal rods (20); a center hole is provided on the center sleeve (11), and the center hole also penetrates the bottom plate (13); and the hanging rod (53) passes through the center hole.

4. The GCB operating mechanism disc spring hoisting device according to claim 1, characterized in that: At least one arc-shaped member (30) is fixedly installed between adjacent longitudinal bars (20).

5. The GCB operating mechanism disc spring hoisting device according to claim 1, characterized in that: The limiting plate (40) is provided with baffles (42) on both sides of the bolt hole (41).

6. The disc spring hoisting device for the GCB operating mechanism according to claim 1 or 5, characterized in that: A rib plate (43) is provided at the bottom of the limiting plate (40).

7. The disc spring hoisting device for the GCB operating mechanism according to claim 6, characterized in that: An inclined surface (44) is provided at one end of the rib plate (43) facing the central axis of the top hanging plate (10).

8. The disc spring hoisting device for the GCB operating mechanism according to claim 1, characterized in that: A rib plate (21) is fixedly mounted on the upper end of the longitudinal rod (20), and the rib plate (21) is fixedly connected to the top hanging plate (10).

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