Core-pulling platform tool for large heat exchanger

Abstract

The utility model relates to a large heat exchanger core-pulling platform tool which comprises two extending longitudinal beams, the two extending longitudinal beams are fixedly connected through a plurality of cross beams, one ends of the extending longitudinal beams are erected on a heat exchanger installation platform, the lower sides of the other ends of the extending longitudinal beams are fixedly connected with extending platform supporting columns, and the top walls of the extending longitudinal beams are fixedly connected with rails. Two tracks are arranged on the top wall of the heat exchanger core body, two trolleys are arranged on the two tracks, two positioning strips are arranged on the top wall of each trolley and symmetrically distributed in the transverse direction, positioning inclined faces are arranged on the inner sides of the top walls of the positioning strips and incline downwards from outside to inside, the two positioning inclined faces in one pair are used for jointly bearing the heat exchanger core body, and a mounting base is fixedly connected to the front side of the top wall of the trolley located on the front side. A mounting vertical plate is fixedly connected to the top wall of the mounting base, and a left limiting block is fixedly connected to the left side of the rear wall of the mounting vertical plate. According to the utility model, the use of a large-scale crane can be reduced, so that the cost and the manpower are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of core pulling of heat exchangers, in particular to a large-scale core pulling platform tooling for heat exchangers. Background Art

[0002] The heat exchanger needs to be cored out, cleaned and replaced every year. The core-pulling process of the heat exchanger installed on the frame platform is extremely inconvenient. The core-pulling method in the prior art uses the bottom steel beam of the upper frame as the lifting point. After the core is taken out of the platform by the relay lifting of the fall chain, two large cranes are used for combined lifting. This method is time-consuming and manpower-consuming, and the crane cost is high. In addition, there are safety risks of lifting imbalance and fall chain breakage during the core-pulling process. Utility Model Content

[0003] The utility model aims to provide a large heat exchanger core-pulling platform tooling, which can reduce the use of large cranes, thereby saving costs and manpower.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A large heat exchanger core pulling platform tooling comprises two extended longitudinal beams, the two extended longitudinal beams are fixedly connected by a plurality of cross beams, one end of the extended longitudinal beam is erected on the heat exchanger mounting platform, the other end of the extended longitudinal beam is fixedly connected to the extension platform pillar on the lower side, the top wall of the extended longitudinal beam is fixedly connected to a track, two trolleys are arranged on the two tracks, the top wall of the trolley is provided with two positioning strips, the two positioning strips are symmetrically distributed in the transverse direction, the inner side of the top wall of the positioning strip is provided with a positioning inclined surface, the positioning inclined surface is inclined downward from the outside to the inside, and a pair of two positioning inclined surfaces are used to jointly support the heat exchanger core, the front side of the top wall of the trolley located on the front side is fixedly connected to a mounting seat, the top wall of the mounting seat is fixedly connected to a mounting vertical plate, the left side of the rear wall of the mounting vertical plate is fixedly connected to a left limiting block, the right side of the rear wall of the mounting vertical plate is fixedly connected to a right limiting column, the longitudinal thickness of the right limiting column is smaller than that of the left limiting block, and the rear wall of the mounting vertical plate is fixedly connected to a right limiting column. A guide block is fixedly connected to the upper side, and two screw rods are threadedly connected to the right side of the mounting vertical plate. The rear end of the screw rod is integrally provided with a polished rod section, and the end of the polished rod section is integrally provided with a strip limit plate. The polished rod section is connected with a positioning plate, and the positioning plate is provided with two strip holes, and the strip holes can be used for the positioning plate to pass through. The strip holes are sleeved on the polished rod section, and a guide notch is provided on the upper edge of the positioning plate. The contour of the guide notch is adapted to the contour of the side wall of the guide block. Mounting inclined surfaces are provided on both lateral sides of the top wall of the mounting vertical plate, and the mounting inclined surfaces are inclined downward from the inside to the outside. A clamping arm base is fixedly connected to the two mounting inclined surfaces, and the clamping arm base is hinged with a clamping arm body and a connecting rod. A swing rod is hinged to the middle part of the clamping arm body, and the upper end of the connecting rod is hinged to the middle part of the swing rod. A clamping bolt is threadedly connected to the end of the clamping arm body. When the clamping bolt clamps the heat exchanger core, the swing rod and the connecting rod are in a colinear self-locking state.

[0006] Specifically, two countersunk holes are provided on the rear side of the positioning plate. The countersunk holes are coaxially arranged with the strip-shaped holes. The strip-shaped limiting pieces are arranged in the countersunk holes. The thickness of the strip-shaped limiting pieces is smaller than the depth of the countersunk holes.

[0007] Specifically, the strip-shaped limiting piece is in the shape of a hexagon, and six sides of the strip-shaped limiting piece are all chamfered.

[0008] Specifically, a connecting seat is fixed to the top of the crossbeam to which the front end of the extended longitudinal beam is fixed, a motor is fixed to the top wall of the connecting seat, a lifting ring is provided on the front wall of the mounting plate, a sprocket is provided on the motor, a chain is wound around the sprocket, and the chain is connected to the lifting ring.

[0009] Specifically, the clamping arm body is L-shaped, forming a short arm section and a long arm section. The bottom end of the rocker arm is forked into two bottom sections, and the two bottom sections are respectively located on both sides of the short arm section. A connecting rod is provided on the outside of the two bottom sections, and limiting protrusions are provided on both sides of the corners of the clamping arm body. When the clamping bolts clamp the heat exchanger core, the rocker arm swings to abut against the limit block, so that the rocker arm and the connecting rod remain in a colinear self-locking state.

[0010] Specifically, two screw rods are distributed in the transverse direction, and a rotating handle is provided at the end of the screw rod.

[0011] Specifically, the two trolleys are fixedly connected by a connecting rod, and the connecting rod and the trolley are connected by screws.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The extension platform pillars are installed based on the central axis of the heat exchanger core, and then the extension platform consisting of extended longitudinal beams and cross beams is installed on the basis of the extension platform pillars and the heat exchanger installation platform.

[0014] The extended longitudinal beam is provided with a track, and the track is provided with two trolleys, and the two trolleys are fixedly connected by a connecting rod. The top wall of the trolley is provided with two positioning strips, and the two positioning strips are symmetrically distributed in the transverse direction. The inner side of the top wall of the positioning strip is provided with a positioning inclined surface, and the positioning inclined surface is inclined downward from the outside to the inside. A pair of two positioning inclined surfaces are used to jointly support the heat exchanger core.

[0015] The crane hoists the heat exchanger core onto two trolleys, so that the front end of the heat exchanger core is against the positioning plate, so that the heat exchanger core is positioned axially. Then, the crane lowers the heat exchanger core onto the two trolleys, and the two positioning strips (positioning slopes) of the trolley are against the two sides of the bottom wall of the heat exchanger core, thereby realizing the horizontal and vertical positioning of the heat exchanger core.

[0016] After the heat exchanger core is positioned, the swing arms on both sides are swung until the ends of the clamping bolts are against the outer wall of the heat exchanger core, thereby clamping the heat exchanger core together and keeping the heat exchanger core and the trolley relatively fixed. Then, the motor drags the two trolleys forward to pull out the heat exchanger core. By using two trolleys to pull out the heat exchanger core, the combined lifting process of two large cranes can be avoided, thereby reducing the use of large cranes, saving costs and manpower, and eliminating safety risks such as unbalanced lifting and broken fall chains during the core pulling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a view of the large heat exchanger core pulling platform tooling installed on the heat exchanger installation platform;

[0019] Figure 2 This is a view of the core pulling platform tooling for a large heat exchanger;

[0020] Figure 3 This is a view of the core pulling platform tooling for a large heat exchanger;

[0021] Figure 4 A view of the positioning plate and related structures;

[0022] Figure 5 Exploded view for installation of facade panels and related structures;

[0023] Figure 6 A view of the clamping arm and related structure.

[0024] In the figure:

[0025] 11. Extended longitudinal beam; 111. Track; 12. Cross beam; 13. Extended platform support; 14. Connecting seat; 15. Motor;

[0026] 2. Heat exchanger installation platform;

[0027] 3. Trolley; 31. Positioning strip; 311. Positioning slope; 32. Mounting seat;

[0028] 4. Heat exchanger core;

[0029] 5. Install the vertical plate; 51. Left limit block; 52. Right limit column; 53. Guide block; 54. Screw; 541. Bar section; 542. Strip limit piece; 55. Positioning plate; 551. Strip hole; 552. Countersunk hole; 553. Guide notch; 56. Install the inclined surface;

[0030] 61. Clamp arm base; 62. Clamp arm body; 621. Short arm section; 622. Long arm section; 623. Limiting convex part; 63. Connecting rod; 64. Rocker arm; 641. Bottom section; 65. Clamping bolt. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] See Figures 1 to 6 A large heat exchanger core pulling platform tooling includes two extended longitudinal beams 11, and the two extended longitudinal beams 11 are fixedly connected by a plurality of cross beams 12. One end of the extended longitudinal beam 11 is placed on the heat exchanger mounting platform 2 (the heat exchanger is not shown). The lower side of the other end of the extended longitudinal beam 11 is fixedly connected to an extended platform support 13.

[0033] The top wall of the extended longitudinal beam 11 is fixed with a track 111, and two trolleys 3 are arranged on the two tracks 111. The top wall of the trolley 3 is provided with two positioning strips 31, and the two positioning strips 31 are symmetrically distributed in the transverse direction. The inner side of the top wall of the positioning strip 31 is provided with a positioning inclined surface 311, and the positioning inclined surface 311 is inclined downward from the outside to the inside. A pair of two positioning inclined surfaces 311 are used to jointly support the heat exchanger core 4.

[0034] A mounting seat 32 is fixedly connected to the front side of the top wall of the trolley 3 located at the front side, and a mounting plate 5 is fixedly connected to the top wall of the mounting seat 32. A left limit block 51 is fixedly connected to the left side of the rear wall of the mounting plate 5, and a right limit column 52 is fixedly connected to the right side of the rear wall of the mounting plate 5. The longitudinal thickness of the right limit column 52 is smaller than that of the left limit block 51. A guide block 53 is fixedly connected to the upper side of the rear wall of the mounting plate 5. A guide notch 553 is provided on the upper edge of the positioning plate 55, and the contour of the guide notch 553 is adapted to the contour of the side wall of the guide block 53. Two screw rods 54 are threadedly connected to the right side of the mounting plate 5, and a light rod section 541 is integrally provided at the rear end of the screw rod 54, and a strip-shaped limit piece 542 is integrally provided at the end of the light rod section 541.

[0035] The light rod section 541 is connected to a positioning plate 55, which is provided with two strip holes 551, through which the positioning plate 55 can pass, and the strip holes 551 are sleeved on the light rod section 541. Two countersunk holes 552 are provided on the rear side of the positioning plate 55, the countersunk holes 552 are coaxially arranged with the strip holes 551, and the strip-shaped limiting piece 542 is arranged in the countersunk hole 552, and the thickness of the strip-shaped limiting piece 542 is less than the depth of the countersunk hole 552.

[0036] Both sides of the top wall of the mounting vertical plate 5 are provided with mounting inclined surfaces 56, which are inclined downward from the inside to the outside. A clamping arm base 61 is fixed to the two mounting inclined surfaces 56. The clamping arm base 61 is hinged with a clamping arm body 62 and a connecting rod 63. A swing rod 64 is hinged to the middle of the clamping arm body 62. The upper end of the connecting rod 63 is hinged to the middle of the swing rod 64. The end of the clamping arm body 62 is threadedly connected with a clamping bolt 65. When the clamping bolt 65 clamps the heat exchanger core 4, the swing rod 64 and the connecting rod 63 are in a colinear self-locking state.

[0037] Specifically, the strip-shaped limiting piece 542 is in the shape of a hexagon, and six sides of the strip-shaped limiting piece 542 are all chamfered.

[0038] Specifically, a connecting seat 14 is fixed to the top of the cross beam 12 to which the front end of the extended longitudinal beam 11 is fixed, a motor 15 is fixed to the top wall of the connecting seat 14, a lifting ring (not shown in the figure) is provided on the front wall of the mounting vertical plate 5, the motor 15 is provided with a sprocket (not shown in the figure), a chain (not shown in the figure) is wound around the sprocket, and the chain is connected to the lifting ring.

[0039] Specifically, the clamping arm body 62 is L-shaped, forming a short arm section 621 and a long arm section 622. The bottom end of the swing arm 64 is bifurcated into two bottom sections 641, and the two bottom sections 641 are respectively located on both sides of the short arm section 621. A connecting rod 63 is provided on the outside of the two bottom sections 641. Limiting protrusions 623 are provided on both sides of the corners of the clamping arm body 62. When the clamping bolt 65 clamps the heat exchanger core 4, the swing arm 64 swings to abut against the limiting block, so that the swing arm 64 and the connecting rod 63 remain in a colinear self-locking state.

[0040] Specifically, two screw rods 54 are distributed in the transverse direction, and a rotating handle is provided at the end of the screw rod 54 .

[0041] Specifically, the two trolleys 3 are fixedly connected by a connecting rod (not shown in the figure), and the connecting rod is connected to the trolley 3 by screws.

[0042] The working principle of the utility model large heat exchanger core pulling platform tooling is as follows:

[0043] The extension platform pillar 13 is installed based on the central axis of the heat exchanger core 4 , and then the extension platform composed of the extension longitudinal beam 11 and the cross beam 12 is installed on the basis of the extension platform pillar 13 and the heat exchanger installation platform 2 .

[0044] The extended longitudinal beam 11 is provided with a track 111, and the track 111 is provided with two trolleys 3, and the two trolleys 3 are fixedly connected by a connecting rod (not shown). The top wall of the trolley 3 is provided with two positioning strips 31, and the two positioning strips 31 are symmetrically distributed in the transverse direction. The inner side of the top wall of the positioning strip 31 is provided with a positioning inclined surface 311, and the positioning inclined surface 311 is inclined downward from the outside to the inside. The two positioning inclined surfaces 311 of a pair are used to jointly support the heat exchanger core 4.

[0045] The crane hoists the heat exchanger core 4 onto the two trolleys 3, so that the front end of the heat exchanger core 4 is pressed against the positioning plate 55, so that the heat exchanger core 4 is positioned axially. Then, the crane lowers the heat exchanger core 4 onto the two trolleys 3, and the two positioning strips 31 (positioning inclined surfaces 311) of the trolleys 3 are pressed against the two sides of the bottom wall of the heat exchanger core 4, thereby realizing the horizontal and vertical positioning of the heat exchanger core 4.

[0046] After the heat exchanger core 4 is positioned, the swing arms 64 on both sides are swung until the ends of the clamping bolts 65 are against the outer wall of the heat exchanger core 4, thereby clamping the heat exchanger core 4 together and keeping the heat exchanger core 4 and the trolley 3 relatively fixed. Then, the motor 15 drags the two trolleys 3 forward to drag out the heat exchanger core 4. By dragging out the heat exchanger core 4 with the two trolleys 3, the combined lifting process of the heat exchanger core 4 using two large cranes can be avoided, thereby reducing the use of large cranes, saving costs and manpower, and eliminating safety risks such as unbalanced lifting and broken fall chains during the core pulling process.

[0047] See Figure 5 , Figure 6 In order to adapt to the heat exchanger core 4 with different front end shapes, the angle position of the positioning plate 55 can be fine-tuned, specifically: the end face of the left limit block 51 is used for the left side of the front wall of the positioning plate 55 to abut against, and the rear end face of the screw 54 is used for the left side of the front wall of the positioning plate 55 to abut against. By adjusting the axial position of the screw 54, the relative position of the rear end face of the screw 54 and the end face of the left limit block 51 can be adjusted, thereby adjusting the positioning angle of the positioning plate 55, so that the adjustment positioning plate 55 can adapt to the heat exchanger core 4 with different front end shapes. The strip limit piece 542 is used to limit the adjustment positioning plate 55 to prevent the positioning plate 55 from falling off the light rod section 541. The thickness of the strip limit piece 542 is less than the depth of the countersunk hole 552, ensuring that the strip limit piece 542 is in the countersunk hole 552 and does not exceed the rear wall of the adjustment positioning plate 55, so that the rear wall of the adjustment positioning plate 55 remains flat.

[0048] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A large heat exchanger core pulling platform tooling, characterized by: The heat exchanger comprises two extended longitudinal beams, the two extended longitudinal beams are fixedly connected by a plurality of cross beams, one end of the extended longitudinal beam is erected on the heat exchanger mounting platform, the other end of the extended longitudinal beam is fixedly connected to the extension platform pillar on the lower side, the top wall of the extended longitudinal beam is fixedly connected to a track, two trolleys are arranged on the two tracks, the top wall of the trolley is provided with two positioning strips, the two positioning strips are symmetrically distributed in the transverse direction, the inner side of the top wall of the positioning strip is provided with a positioning inclined surface, the positioning inclined surface is inclined downward from the outside to the inside, and a pair of two positioning inclined surfaces are used to jointly support the heat exchanger core, the front side of the top wall of the trolley located on the front side is fixedly connected to a mounting seat, the top wall of the mounting seat is fixedly connected to a mounting vertical plate, the left side of the rear wall of the mounting vertical plate is fixedly connected to a left limiting block, the right side of the rear wall of the mounting vertical plate is fixedly connected to a right limiting column, the longitudinal thickness of the right limiting column is smaller than that of the left limiting block, and the upper side of the rear wall of the mounting vertical plate is fixedly connected to a guide The cam is provided with a plurality of strip-shaped holes, through which the cam is inserted, and the strip-shaped holes are provided on the end of the strip-shaped holes. The strip-shaped holes are provided on the upper edge of the strip-shaped holes, and the contour of the guide gap is matched with the contour of the side wall of the guide block. The top wall of the mounting plate is provided with mounting inclined surfaces on both sides, and the mounting inclined surfaces are inclined downward from the inside to the outside. A clamping arm base is fixedly connected to the two mounting inclined surfaces, and the clamping arm base is hinged with a clamping arm body and a connecting rod. A swing rod is hinged in the middle of the clamping arm body, and the upper end of the connecting rod is hinged with the middle of the swing rod. A clamping bolt is threadedly connected to the end of the clamping arm body. When the clamping bolt clamps the heat exchanger core, the swing rod and the connecting rod are in a colinear self-locking state.

2. The large heat exchanger core pulling platform tooling according to claim 1 is characterized by: Two countersunk holes are arranged on the rear side of the positioning plate. The countersunk holes are coaxially arranged with the strip holes. The strip-shaped limiting pieces are arranged in the countersunk holes. The thickness of the strip-shaped limiting pieces is less than the depth of the countersunk holes.

3. The large heat exchanger core pulling platform tooling according to claim 2 is characterized by: The strip-shaped limiting piece is in the shape of a strip of hexagon, and six sides of the strip-shaped limiting piece are all provided with chamfers.

4. The large heat exchanger core pulling platform tooling according to claim 1 is characterized by: The top of the crossbeam to which the front end of the extended longitudinal beam is fixed is fixedly connected with a connecting seat, the top wall of the connecting seat is fixedly connected with a motor, the front wall of the mounting vertical plate is provided with a lifting ring, the motor is provided with a sprocket, the sprocket is wound with a chain, and the chain is connected with the lifting ring.

5. The large heat exchanger core pulling platform tooling according to claim 1 is characterized by: The clamping arm body is L-shaped, forming a short arm section and a long arm section. The bottom end of the swing arm is forked into two bottom sections, which are respectively located on both sides of the short arm section. A connecting rod is provided on the outside of the two bottom sections. Limiting protrusions are provided on both sides of the corners of the clamping arm body. When the clamping bolts clamp the heat exchanger core, the swing arm swings to abut against the limit block, so that the swing arm and the connecting rod remain in a colinear self-locking state.

6. The large heat exchanger core pulling platform tooling according to claim 1 is characterized by: The two screw rods are distributed in the transverse direction, and the ends of the screw rods are provided with rotating handles.

7. The large heat exchanger core pulling platform tooling according to claim 1 is characterized by: The two trolleys are fixedly connected by a connecting rod, and the connecting rod and the trolley are connected by screws.

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