A clamping and transporting device for cutting large cylindrical members

Abstract

The present application relates to the technical field of nuclear facility decommissioning, and provides a clamping, fixing and transferring device for cutting of large cylindrical components, which comprises a rack, a support clamp for performing active clamping by abutting against the outer wall of the component is arranged on the top of the rack, a support disc for supporting the component and receiving cutting debris is arranged below the support clamp, a transmission assembly for vertically moving and lifting the support disc is arranged on the rack, and a transferring assembly for horizontally transferring the support disc is arranged below the rack, so that the clamping and cutting and post-cutting transferring of the large cylindrical component are realized through the cooperative action of the support clamp, the support disc and the transferring assembly, the stability of the cylindrical component during the cutting process is improved, the cuttability of the component is improved, and the whole process is implemented on site without the need of personnel, so that the radiation risk of the personnel is effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear facility decommissioning, in particular to a clamping and fixing and transfer device for cutting large cylindrical components. BACKGROUND

[0002] In the technical field of nuclear facility decommissioning, large cylindrical components such as pressure vessels, steam generators and stabilizers require a lot of cutting operations. These cylindrical components are usually large in size and high in radiation level. In the prior art, vertical cutting and horizontal cutting are generally used for disassembling similar components. Vertical cutting occupies less horizontal space and more vertical space, and occupies less site. Horizontal cutting occupies more horizontal space and less vertical space, and occupies more ground space. Therefore, vertical cutting is preferred in the case of limited site.

[0003] Clamping and fixing of components is a necessary prerequisite for completing the cutting and disassembling task. The above-mentioned cylindrical components are not only large in size, but also irregular in shape, and even have many connecting pipelines on the outer wall, which affects the clamping stability during cutting. In addition, such large cylindrical components are usually cut into multiple ring-shaped parts, which are then further processed. Currently, the parts after cutting need to be transferred by a crane, which has the problems of laborious clamping, poor reliability, the need for close operation, long on-site operation time of personnel, and the like. In addition, during the disassembling process, metal chips often splash and scatter, making it difficult to collect and clean up. At the same time, since such components contain radioactive contamination, the radiation risk to the operator is high. SUMMARY

[0004] The purpose of the present application is to provide a clamping and fixing and transfer device for cutting large cylindrical components, which solves the above technical problems,

[0005] The present application is implemented by the following technical scheme: a clamping and fixing and transfer device for cutting large cylindrical components, comprising a rack, a support clamp for fitting the outer wall of the component and performing active clamping is arranged on the top of the rack, a support disc for supporting the component and receiving cutting debris is arranged below the support clamp, a transmission assembly for vertically lifting the support disc is arranged on the rack, and a transfer assembly for horizontally transferring the support disc is arranged below the rack.

[0006] Further, the support clamp comprises two horizontally symmetrical clamping arms, and an adjusting assembly for adjusting the distance between the two clamping arms is arranged between the two clamping arms.

[0007] Preferably, the adjusting assembly comprises a first motor and a rack meshing with the output shaft of the first motor, the first motor is fixed relative to the rack, the rack is fixed at the two ends of the clamping arm, and the same first motor drives the racks on different clamping arms to move horizontally towards or away from each other.

[0008] Preferably, the adjusting assembly comprises a first motor, wire columns and a driving belt, the first motor is fixed relative to the frame, the wire columns are vertically fixed at two ends of the clamping arms respectively, one end of the driving belt is fixed to an output shaft of the first motor, and the other end of the driving belt is fixed to an adjacent wire column of the other clamping arm after passing through the wire columns of the clamping arms.

[0009] Preferably, the clamping arms are each divided into a plurality of clamping blocks, and a second motor is arranged between the clamping blocks and engaged with the clamping blocks to drive adjacent clamping blocks to move horizontally towards or away from each other.

[0010] Preferably, the clamping arms are in the shape of a semicircular ring.

[0011] Further, the top of the frame is provided with a negative pressure dust collection cover for collecting cutting debris, and the negative pressure dust collection cover comprises a receiving frame and a plurality of folding plates, the receiving frame is arranged along the outer periphery of the frame, and the receiving frame is provided with a receiving groove opening vertically downward and horizontally inward for receiving the plurality of folding plates.

[0012] Further, the transmission assembly comprises a driving motor, a first driven wheel and a second driven wheel, the first driven wheel is in belt transmission connection with an output shaft of the driving motor, a chain for sprocket chain transmission connection is arranged between the first driven wheel and the second driven wheel, and a tray support disc supporting disc is fixed to the chain.

[0013] Preferably, a guide wheel is rotatably connected to the tray support disc, and the frame is vertically provided with a guide rail matched with the guide wheel.

[0014] Further, the transfer assembly comprises a slide rail and a flat car slidingly fitted on the slide rail.

[0015] The present application has at least the following advantages and beneficial effects: through the cooperation of the supporting clamp, the supporting disc and the transfer assembly, the clamping and cutting of large cylindrical components are realized, the stability of the cylindrical components in the cutting process is improved, the cuttability of the components is improved, the whole process is implemented on site without personnel, and the personnel radiation risk is effectively avoided; and through the split design of the supporting clamp, the clamping of components with different diameters is realized, which is more suitable for the outer wall of the components, and the applicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 The structure diagram of a clamping and fixing and transfer device for large cylindrical component cutting provided by the present application;

[0018] Figure 2 A front view of a clamping and fixing and transfer device for cutting of large cylindrical members according to the present application;

[0019] Figure 3 A structural schematic view of a support clamp in a clamping and fixing and transfer device for cutting of large cylindrical members according to the present application;

[0020] Figure 4 A connection schematic view between the clamping blocks in a clamping and fixing and transfer device for cutting of large cylindrical members according to the present application;

[0021] Figure 5 A sectional view of a negative pressure dust collection cover in a clamping and fixing and transfer device for cutting of large cylindrical members according to the present application;

[0022] Figure 6 A transmission schematic view of an adjusting assembly in a clamping and fixing and transfer device for cutting of large cylindrical members according to the second embodiment of the present application;

[0023] Icon: 1 - rack, 10 - guide rail, 2 - support clamp, 20 - clamping arm, 201 - clamping block, 202 - second motor, 203 - connecting sleeve, 21 - adjusting assembly, 211 - first motor, 212 - rack, 213 - winding column, 214 - drive belt, 3 - support disc, 4 - transmission assembly, 41 - drive motor, 42 - first driven wheel set, 421 - pulley, 422 - gear, 43 - second driven wheel, 44 - chain, 5 - transfer assembly, 51 - slide rail, 52 - flat car, 6 - negative pressure dust collection cover, 61 - storage frame, 610 - storage groove, 62 - multi-fold plate, 7 - tray support, 71 - guide wheel. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0026] Embodiment one

[0027] As Figures 1-5 shown, in this embodiment, mainly discloses a kind of clamping and fixing and transfer device for large cylindrical component cutting, including rack 1, rack 1 top is equipped with the support clamp 2 for the outer wall of component execution movable package, support clamp 2 below is equipped with the support disc 3 for supporting component and receiving cutting debris, rack 1 is equipped with the transmission assembly 4 for vertically movable lifting support disc 3, rack 1 below is provided with the transfer assembly 5 for horizontal transfer support disc 3;Specifically, rack 1 can be by the frame structure of square frame, column and crossbeam, column is set to square frame lower end four corners, and is installed and fixed on stable plane, crossbeam is connected between adjacent column, and the setting position should avoid support disc 3 passage path;Support clamp 2 is movably arranged on the top of rack 1, and can be clamped to cylindrical component of different diameter size;By the clamping of support clamp 2 and the support of support disc 3, the stability in the cutting process of cylindrical component is improved, and the cuttability of component is improved;

[0028] It should be noted that before component hoisting, a shoulder support is welded on the upper part of the component, which can be clamped on the support clamp 2 to form a support, and the component is hoisted to the top of the device. The component is vertically cut, and if the component has an opening, the opening is upward, and if there is no opening, the larger end of the component is upward. The position of the component is placed in the center of the support clamp 2, which can be adjusted gradually during the lowering process. The support clamp 2 clamps the component, and the support disc 3 is lifted upward under the action of the transmission assembly 4. The support disc 3 is lifted to the bottom of the component for support. The circumferential cutting tool is used to cut the component from bottom to top in sections. The metal debris generated during cutting and the cut sections fall onto the support disc 3. The transmission assembly 4 is started again to lower the support disc 3 until the support disc 3 falls onto the transfer assembly 5. The support disc 3 and the cut component are transferred to the subsequent station together. The whole process can realize remote clamping, fixing and transferring without personnel on-site implementation, effectively avoiding personnel radiation risk.

[0029] Further, in specific implementation, the support clamp 2 provided by the embodiment of the present application comprises two horizontally symmetrical clamping arms 20, the clamping arms 20 are semicircular rings, and an adjusting assembly 21 for adjusting the distance between the clamping arms 20 is arranged between the two clamping arms 20; preferably, the adjusting assembly 21 comprises a first motor 211 and a rack 212 engaged with the output shaft of the first motor 211, the first motor 211 is fixed relative to the rack 1, the rack 212 is fixed at the two ends of the clamping arm 20 respectively, and the same first motor 211 drives the racks 212 on different clamping arms 20 to move horizontally towards or away from each other; specifically, the racks 212 at the adjacent ends of the two clamping arms 20 are arranged horizontally staggered, and the output shaft of the first motor 211 is inserted thereinto, and by forward and reverse rotation of the first motor 211, the distance between the two clamping arms 20 is expanded and reduced, which can be automatically adjusted according to components of different diameters, and the applicability of the device is improved.

[0030] Preferably, the clamping arm 20 is divided into a plurality of clamping blocks 201, and a second motor 202 for driving adjacent clamping blocks 201 to move horizontally towards or away from each other is arranged between the clamping blocks 201; specifically, the horizontal projection of the clamping block 201 can be fan-shaped, the side edge is provided with a stepped groove, and the horizontal stepped surface is provided with a rack 212 pattern; the stepped grooves of adjacent clamping blocks 201 are arranged up and down staggered, leaving a gap in the middle, the output shaft of the second motor 202 is inserted thereinto and engaged with the adjacent clamping blocks 201 for transmission, and a connecting sleeve 203 is movably arranged on the staggered part of the adjacent clamping blocks 201 for fixing the position of the second motor 202; by forward and reverse rotation of the second motor 202, the curvature of the clamping surface of the clamping arm 20 can be changed, so that it can better fit the cylindrical components of different diameters, realizing similar flexible clamping, and further improving the stability of clamping.

[0031] Further, in specific implementation, the top of the rack 1 provided by the embodiment of the present application is provided with a negative pressure dust collection cover 6 for collecting cutting debris, the negative pressure dust collection cover 6 comprises a receiving frame 61 and a plurality of folding plates 62, the receiving frame 61 is arranged along the outer periphery of the rack 1, and the receiving frame 61 is provided with a receiving groove 610 opening vertically downward and horizontally inward for receiving the plurality of folding plates 62; specifically, the negative pressure dust collection cover 6 is fixed on the top of the rack 1, and in use, the plurality of folding plates 62 received in the receiving frame 61 are stretched and unfolded vertically downward and horizontally inward to wrap the device; a thin layer of lead sheet is attached to the inner wall of the plurality of folding plates 62 to form a radiation shielding layer, reducing radiation overflow; a connecting hole for connecting an external negative pressure pump is formed on one side of the plurality of folding plates 62 to suck away the small cutting debris with radiation, avoiding the scattering of cutting debris, ensuring the cleanliness of the cutting environment, and reducing the difficulty of waste collection and treatment.

[0032] Furthermore, in a specific implementation, the transmission assembly 4 provided in the embodiment of the present invention includes a driving motor 41, a first driven wheel group 42 and a second driven wheel 43. The first driven wheel group 42 is connected to the output shaft of the driving motor 41 by belt transmission. A chain 44 for connecting the first driven wheel group 42 and the second driven wheel 43 is provided between the first driven wheel group 42 and the second driven wheel 43. A tray bracket 7 supporting the support plate 3 is fixed on the chain 44. It should be noted that the first driven wheel group 42 includes a pulley 421 driven by a belt with the output shaft of the driving motor 41 and a gear 422 driven by a toothed chain with the second driven wheel 43. The wheel 421 and the gear 422 are coaxially connected through a rotating shaft, and multiple chains 44 acting on the tray bracket 7 can be arranged vertically and in parallel to ensure the stability and uniformity of the force. The contact part of the support plate 3 and the tray bracket 7 can be connected by a card slot and can be detachable; preferably, a guide wheel 71 is rotatably connected to the tray bracket 7, and the frame 1 is vertically provided with a guide rail 10 that cooperates with the guide wheel 71. Specifically, the column can be made of I-beam, and the groove of the I-beam constitutes the guide rail 10. The outer supports of the guide wheels 71 at both ends of the tray bracket 7 are limited in the groove of the I-beam to realize the vertical limited movement of the tray bracket 7.

[0033] Furthermore, in a specific implementation, the above-mentioned transfer assembly 5 provided in an embodiment of the present invention includes a slide rail 51 and a flatbed trolley 52 that slides on the slide rail 51; specifically, the slide rail 51 is laid on a stable ground, with a portion located below the frame 1, and the flatbed trolley 52 is driven by a driving device to slide on the slide rail 51.

[0034] Example 2

[0035] like Figure 6 As shown, in this embodiment, the main structure is exactly the same as that of the first embodiment, and the difference is that the above-mentioned adjustment component 21 includes a first motor 211, a winding post 213 and a driving belt 214. The first motor 211 is relatively fixed to the frame 1, and the winding post 213 is vertically fixed to the two ends of the clamping arm 20. One end of the driving belt 214 is fixed to the output shaft of the first motor 211, and the other end of the driving belt 214 is fixed to the adjacent winding post 213 of the other clamping arm 20 after passing through the winding post 213 of the clamping arm 20. The first motor 211 winds up the driving belt 214 to realize the expansion and contraction of the distance between the two clamping arms 20.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A clamping fixture and transfer device for cutting of large cylindrical members, characterized in that, The utility model provides a cutting device for building material, including frame (1), frame (1) top is equipped with the support clamp (2) for the active package of fitting component outer wall execution, support clamp (2) below is equipped with the support tray (3) for supporting the component and the support tray (3) of cutting scrap, be equipped with the transmission assembly (4) for vertical active lifting support tray (3) on frame (1), be provided with the transfer assembly (5) for horizontal transfer support tray (3) below frame (1), Support clamp (2) includes two horizontally symmetrical clamping arms (20), and the adjusting assembly (21) for adjusting the distance between the two clamping arms (20) is arranged between the two clamping arms (20). The adjusting assembly (21) includes a first motor (211) and a rack (212) engaged with the output shaft of the first motor (211), the first motor (211) is fixed relative to the frame (1), and the rack (212) is fixed to the two ends of the clamping arm (20), respectively. The same first motor (211) drives the rack (212) on different clamping arms (20) to move horizontally towards or away from each other. The clamping arm (20) is divided into a plurality of clamping blocks (201), and a second motor (202) is arranged between the clamping blocks (201) for driving adjacent clamping blocks (201) to move horizontally towards or away from each other. The transmission assembly (4) includes a drive motor (41), a first driven wheel set (42), and a second driven wheel (43). The first driven wheel set (42) is connected to the output shaft of the drive motor (41) by a belt drive. A chain (44) for sprocket chain drive is arranged between the first driven wheel set (42) and the second driven wheel (43). The chain (44) is fixed with a tray support (7) for supporting the support tray (3).

2. A clamping fixture and transfer device for cutting of large cylindrical members as claimed in claim 1, wherein, The adjusting assembly (21) includes a first motor (211), a winding column (213), and a drive belt (214). The first motor (211) is fixed relative to the frame (1). The winding column (213) is vertically fixed to the two ends of the clamping arm (20), respectively. One end of the drive belt (214) is fixed to the output shaft of the first motor (211). The other end of the drive belt (214) is fixed to the adjacent winding column (213) of the other clamping arm (20) after passing through the winding column (213) of the clamping arm (20).

3. A clamping fixture and transfer device for cutting of large cylindrical members as claimed in claim 1, wherein, The clamping arm (20) is in the shape of a semicircular ring.

4. A clamping fixture and transfer device for cutting of large cylindrical members as claimed in claim 1, wherein, The frame (1) is provided with a negative pressure dust collection hood (6) at the top for collecting cutting scraps. The negative pressure dust collection hood (6) includes a receiving frame (61) and a plurality of flaps (62). The receiving frame (61) is arranged along the outer periphery of the frame (1). The receiving frame (61) is provided with a receiving groove (610) opening vertically downward and horizontally inward for receiving the plurality of flaps (62).

5. A clamping fixture and transfer device for cutting of large cylindrical members as claimed in claim 1, wherein, The tray support (7) is rotatably connected with a guide wheel (71), and the frame (1) is vertically provided with a guide rail (10) matched with the guide wheel (71).

6. A clamping fixture and transfer device for cutting of large cylindrical members as claimed in claim 1, wherein, The transport assembly (5) comprises a slide rail (51) and a flatbed truck (52) slidingly fitted on the slide rail (51). The transport assembly (5) comprises a slide rail (51) and a flatbed truck (52) slidingly fitted on the slide rail (51). The transport assembly (5) comprises a slide rail (51) and

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