Hoisting device for boiler maintenance

Abstract

The utility model discloses a lifting device for boiler maintenance, which comprises a fixing frame, a sliding beam is fixedly connected to the top end of the fixing frame, the sliding beam is of an I-shaped structure, the lower end of the sliding beam is slidably connected with two sliding assemblies, a telescopic piece is fixedly connected between the two sliding assemblies, and the bottom ends of the two sliding assemblies are used for lifting a boiler; pushing discs abut against the two sides of the boiler respectively, one end face of each pushing disc is rotationally connected with a side supporting rod with an elastic structure, one end of each side supporting rod penetrates through and is slidably connected with a lifting assembly, the lifting assembly is sleeved with a stand column, and the stand columns are vertically arranged and fixedly connected with the fixing frame and the ground. According to the utility model, the shaking of the heavy boiler in the hoisting process can be counteracted and buffered by utilizing the elastic side supporting rods, so that the impact force on the upright post is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting, in particular to a hoisting device for boiler maintenance. Background Art

[0002] Boiler is an important thermal energy equipment, providing heat and power for various fields. Different types of boilers may vary in design, fuel, capacity and application to meet different needs. At the same time, in order to improve the combustion efficiency of fuel, today's boilers are usually very bulky and large in size. Once they are maintained, they will have poor stability when adjusting their position.

[0003] The prior art (Chinese patent number: CN219031513U) discloses a lifting device for boiler maintenance, which can adjust the spacing of the lifting hooks to facilitate lifting boilers of different sizes, and the anti-sway guard plate is convenient for clamping and fixing the boiler. It is simple to operate, highly practical, and has a stable structure. However, the anti-sway hydraulic rod and the anti-sway guard plate stabilize the boiler, which will cause a great impact force on the lifting frame. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a lifting device for boiler maintenance, which can use elastic side support rods to offset and buffer the shaking of the heavy boiler during the lifting process, thereby reducing the impact force on the column.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A lifting device for boiler maintenance comprises a fixed frame, a sliding beam is fixedly connected to the top of the fixed frame, the sliding beam is an I-shaped structure, two sliding components are slidably connected to the lower end of the sliding beam, a telescopic part is fixedly connected between the two sliding components, and the bottom ends of the two sliding components are used to lift the boiler; push plates are respectively abutted on both sides of the boiler, one end surface of the push plate is rotatably connected to a side support rod with an elastic structure, one end of the side support rod passes through and is slidably connected to a lifting component, the lifting component is sleeved with a column, the column is vertically arranged and fixedly connected to the fixed frame and the ground.

[0007] Preferably, the fixing frame includes two frame plates and a plurality of triangular support beams, the two ends of the support beams are respectively fixedly connected to the top surfaces of the frame plates, the middle portion of the bottom surface of the support beams is fixedly connected to the top surface of the sliding beam, and the top end of the frame plates is fixedly connected to the top end of the columns.

[0008] Preferably, the sliding assembly includes a slider, the slider is provided with a T-shaped slot, the top surface and the bottom surface of the inner cavity of the slider are respectively slidably connected to the bottom end of the sliding beam, the top end of the inner cavity of the slider is symmetrically rotatably connected to rollers, and the rollers are in rolling contact with the sliding beam; the bottom surface of the slider is fixedly connected to a lifting assembly, and the lifting assembly is detachably connected to the boiler.

[0009] Preferably, the bottom surface of the slider is fixedly connected to a fixing plate, the fixing plate is fixedly connected to a motor, the motor output shaft is transmission-connected to a gear, a rack is provided on the bottom surface of the sliding beam, and the gear is meshed and transmission-connected with the sliding beam through the rack.

[0010] Preferably, the side support rod includes a plurality of chain links, an elastic component is fixedly connected between two adjacent chain links, the elastic component includes two groups of connecting components, a rotating shaft is rotatably connected between the two connecting components, a torsion spring is sleeved on the outer side of the rotating shaft, both ends of the torsion spring are respectively fixedly connected to the end faces of two adjacent chain links, and the chain link is detachably connected to the lifting assembly.

[0011] Preferably, the connecting assembly comprises a connecting tongue, wherein the connecting tongue is two and respectively fixedly connected to two adjacent chain link end faces, and the connecting tongue is rotatably connected to one end of the rotating shaft.

[0012] Preferably, a slide groove is provided on one side of the chain link, an elastic spring is slidably connected in the slide groove, one end of the spring is fixedly connected to any one of two adjacent chain links, and the spring is respectively arranged in the two slide grooves; a socket is provided on the top surface of the chain link, a pin is inserted in the socket, and the top end of the pin passes through the lifting assembly.

[0013] Preferably, the lifting assembly includes a slide cylinder, which is sleeved on the outside of the column, and the top and bottom of the slide cylinder are respectively abutted with screw disks, and the screw disks are screwed to the side walls of the column; a sleeve is fixedly connected to the outside of the slide cylinder, and a through hole is opened on the opposite side of the sleeve, and the chain link is slidably connected to the sleeve through the through hole; the top end of the pin is arranged to pass through the top surface of the sleeve.

[0014] Compared with the prior art, the utility model has the following advantages and technical effects:

[0015] The utility model lifts the boiler by means of a sliding assembly and can move along the sliding beam, so that the position of the boiler can be slightly adjusted.

[0016] The side support rods on both sides of the boiler of the utility model abut against the side surface of the boiler through the push plate, thereby preventing the boiler from shaking during maintenance and causing safety accidents.

[0017] The side support rod of the utility model can use the elastic force formed by bending to offset the torsional force of the boiler, which not only reduces the impact force of the fixing frame, but also can realize the self-balancing stability of the boiler and reduce the influence of the rigid contact of the side support rod on the boiler side support. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a side view of the structure of the utility model;

[0020] Figure 2 It is a side view structural schematic diagram of the sliding assembly and the side support rod;

[0021] Figure 3 It is a schematic diagram of the side support rod side view structure;

[0022] Among them, 1. frame plate; 2. support beam; 3. column; 4. sliding beam; 5. boiler; 6. push plate; 7. slider; 8. T-slot; 9. roller; 10. fixed plate; 11. motor; 12. gear; 13. chain link; 14. shaft; 15. torsion spring; 16. connecting tongue; 17. slide groove; 18. spring leaf; 19. socket; 20. latch; 21. slide cylinder; 22. screw disk; 23. sleeve. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that all components in the technical solution of this application require the necessary additional facilities of water supply, oil supply, electricity supply and gas supply to be driven and / or controlled. If there is no further explanation, it is assumed that the existing technology is used and equipped without special explanation.

[0025] It should be noted that, in order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Depend on Figure 1A lifting device for boiler maintenance shown in the figure includes a fixed frame, a sliding beam 4 is fixedly connected to the top of the fixed frame, the sliding beam 4 is an I-shaped structure, and two sliding components are slidably connected to the lower end of the sliding beam 4, and a telescopic part is fixedly connected between the two sliding components. The bottom ends of the two sliding components are used to lift the boiler 5, and push plates 6 are respectively abutted on both sides of the boiler 5. One end surface of the push plate 6 is rotatably connected to a side support rod with an elastic structure, and one end of the side support rod passes through and is slidably connected to a lifting component. The lifting component is sleeved with a column 3, and the column 3 is vertically arranged and fixedly connected to the fixed frame and the ground.

[0027] Furthermore, the telescopic member is a hydraulic cylinder, a pneumatic cylinder or an electric cylinder, and preferably a hydraulic cylinder is used, which is a prior art and will not be described in detail here.

[0028] The utility model suspends the boiler 5 through the sliding assembly and can move along the sliding beam 4, so as to slightly adjust the position of the boiler 5. At the same time, the side support rods on both sides of the boiler 5 are abutted against the side of the boiler 5 through the push plate 6 to prevent the boiler 5 from shaking during maintenance and causing safety accidents. At the same time, in order to reduce the influence of the side support rods on the rigid contact of the boiler 5 when supporting the side, the side support rods can use the elastic force formed by bending to offset the torsional force of the boiler 5, which not only reduces the impact force of the fixing frame, but also can achieve the stability of the self-balancing of the boiler 5.

[0029] A further optimized solution is that the fixed frame includes two frame plates 1 and several triangular support beams 2, the two ends of the support beams 2 are fixedly connected to the top surfaces of the frame plates 1, the middle part of the bottom surface of the support beam 2 is fixedly connected to the top surface of the sliding beam 4, and the top end of the frame plate 1 is fixedly connected to the top end of the column 3. The frame structure formed by the frame plates 1 and the support beams 2 can support the sliding assembly and improve the supporting force of the sliding beam 4.

[0030] To further optimize the solution, Figure 2 As shown, the sliding assembly includes a slider 7, which is provided with a T-slot 8, which is matched with the bottom end of the sliding beam 4, and the top and bottom surfaces of the inner cavity of the slider 7 are respectively slidably connected to the bottom end of the sliding beam 4, and rollers 9 are symmetrically rotatably connected on both sides of the top end of the inner cavity of the slider 7, i.e., the opening of the T-slot 8, and the rollers 9 are in rolling contact with the sliding beam 4. A lifting assembly is fixedly connected to the bottom surface of the slider 7, and the lifting assembly is detachably connected to the boiler 5. Furthermore, the lifting assembly is a commonly used mechanism for lifting heavy objects composed of a driving machine, a drum, a hook and a wire rope system, which is a prior art and will not be described here.

[0031] A further optimized solution is that a fixed plate 10 is fixedly connected to the bottom surface of the slider 7, a motor 11 is fixedly connected to the fixed plate 10, a gear 12 is transmission-connected to the output shaft of the motor 11, a rack (a common technical means, not shown in the drawings) is provided on the bottom surface of the slide beam 4, the gear 12 is meshed and transmission-connected with the slide beam 4 through the rack, the gear 12 is driven to rotate by the motor 11, thereby pushing one of the sliders 7 to move and then pushing the other slider 7 to move at the same time through the telescopic member, thereby finally realizing the adjustment of the position of the boiler 5.

[0032] To further optimize the solution, Figure 3 As shown, the side support rod includes a plurality of chain links 13, an elastic component is fixedly connected between two adjacent chain links 13, the elastic component includes two groups of connecting components, a rotating shaft 14 is rotatably connected between the two connecting components, a torsion spring 15 is sleeved on the outer side of the rotating shaft 14, two ends of the torsion spring 15 are respectively fixedly connected to the end faces of two adjacent chain links 13, the chain link 13 is detachably connected to the lifting component, the two ends of the torsion spring 15 realize the twisting of the torsion spring 15 through the torsion of the chain link 13, and the torsion spring 15 stores energy to realize the abutment against the boiler 5.

[0033] Further optimized solution, the connection assembly includes a connection tongue 16, two connection tongues 16 are respectively fixedly connected to the end faces of two adjacent chain links 13, and the connection tongue 16 is rotatably connected to one end of the rotating shaft 14. A slide groove 17 is provided on one side of the chain link 13, and an elastic spring 18 is slidably connected in the slide groove 17. One end of the spring 18 is fixedly connected to any one of the two adjacent chain links 13. The spring 18 is respectively arranged in the two slide grooves 17. When the two adjacent chain links 13 rotate, the spring 18 can further enhance the bending energy absorption effect of the side support rod through deformation. A plug hole 19 is provided on the top surface of the chain link 13, and a plug pin 20 is inserted in the plug hole 19. The top end of the plug pin 20 passes through the lifting assembly, and the depth of the side support rod inserted into the sleeve 23 is realized by the plug pin 20.

[0034] A further optimized solution is provided, in which the lifting assembly includes a slide 21, which is sleeved on the outside of the column 3, and screw disks 22 are respectively abutted on the top and bottom of the slide 21, and the screw disks 22 are screwed to the side walls of the column 3. A sleeve 23 is fixedly connected to the outside of the slide 21, and a through hole is provided on the opposite side of the sleeve 23. The chain link 13 is slidably connected to the sleeve 23 through the through hole, and the top end of the pin 20 is arranged to penetrate the top surface of the sleeve 23. The slide 21 is locked at the height of the column 3 by clamping the upper and lower screw disks 22 of the slide 21.

[0035] The working process of this embodiment is as follows:

[0036] When the boiler 5 needs to be inspected, the boiler 5 is lifted by the lifting assembly. In order to inspect the position below the boiler 5, the motor 11 is started to drive the gear 12 to move on the rack below the slide beam 4, so as to push the slider 7, and then push the other slider 7 to move at the same time through the telescopic member to adjust the position of the other slider 7. During the lifting process, in order to facilitate vertical lifting, the telescopic member can adjust the distance between the two sliders 7.

[0037] During the lifting process, the push plate 6 abuts against the two sides of the boiler 5. Furthermore, the push plate 6 can be a manual magnetic seat, which is adsorbed on the two sides of the boiler 5 to facilitate the stability of the support of the side support rod. When the push plate 6 abuts against the side of the boiler 5 and is stable, the latch 20 passes through the sleeve 23 and is inserted into the insertion hole 19, so that the chain link 13 cannot move in the sleeve 23.

[0038] When the boiler 5 hoist moves upward, it will drive the slide 21 to move upward gradually. After stabilization, the two screw discs 22 rotate with the column 3 to clamp the slide 21 to prevent the sleeve 23 fixed to the side of the slide 21 from rotating.

[0039] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A lifting device for boiler maintenance, characterized in that: It comprises a fixed frame, the top of which is fixedly connected with a sliding beam (4), the sliding beam (4) is an I-shaped structure, the lower end of the sliding beam (4) is slidably connected with two sliding components, a telescopic part is fixedly connected between the two sliding components, and the bottom ends of the two sliding components are used to lift the boiler (5); push plates (6) are respectively abutted on both sides of the boiler (5), one end surface of the push plate (6) is rotatably connected with a side support rod with an elastic structure, one end of the side support rod passes through and is slidably connected with a lifting component, and the lifting component is sleeved with a column (3), and the column (3) is vertically arranged and fixedly connected to the fixed frame and the ground.

2. A lifting device for boiler maintenance according to claim 1, characterized in that: The fixing frame comprises two frame plates (1) and a plurality of triangular support beams (2), the two ends of the support beams (2) are respectively fixedly connected to the top surface of the frame plates (1), the middle part of the bottom surface of the support beam (2) is fixedly connected to the top surface of the sliding beam (4), and the top end of the frame plates (1) is fixedly connected to the top end of the column (3).

3. A lifting device for boiler maintenance according to claim 1, characterized in that: The sliding assembly comprises a slider (7), the slider (7) is provided with a T-shaped groove (8), the inner cavity top surface and bottom surface of the slider (7) are respectively slidably connected to the bottom end of the sliding beam (4), the inner cavity top of the slider (7) is symmetrically rotatably connected to rollers (9), and the rollers (9) are in rolling contact with the sliding beam (4); the bottom surface of the slider (7) is fixedly connected to a lifting assembly, and the lifting assembly is detachably connected to the boiler (5).

4. A lifting device for boiler maintenance according to claim 3, characterized in that: The bottom surface of the slider (7) is fixedly connected to a fixing plate (10), the fixing plate (10) is fixedly connected to a motor (11), the output shaft of the motor (11) is transmission-connected to a gear (12), a rack is provided on the bottom surface of the slide beam (4), and the gear (12) is meshed and transmission-connected with the slide beam (4) through the rack.

5. A lifting device for boiler maintenance according to claim 1, characterized in that: The side support rod comprises a plurality of chain links (13), an elastic component is fixedly connected between two adjacent chain links (13), the elastic component comprises two groups of connecting components, a rotating shaft (14) is rotatably connected between the two connecting components, a torsion spring (15) is sleeved on the outer side of the rotating shaft (14), two ends of the torsion spring (15) are respectively fixedly connected to the end faces of two adjacent chain links (13), and the chain link (13) is detachably connected to the lifting component.

6. A lifting device for boiler maintenance according to claim 5, characterized in that: The connecting assembly comprises two connecting tongues (16), the connecting tongues (16) being fixedly connected to the end faces of two adjacent chain links (13) respectively, and the connecting tongues (16) being rotatably connected to one end of the rotating shaft (14).

7. A lifting device for boiler maintenance according to claim 5, characterized in that: A slide groove (17) is provided on one side of the chain link (13), and an elastic spring leaf (18) is slidably connected in the slide groove (17). One end of the spring leaf (18) is fixedly connected to any one of two adjacent chain links (13), and the spring leaf (18) is respectively arranged in the two slide grooves (17); a plug hole (19) is provided on the top surface of the chain link (13), and a latch (20) is inserted in the plug hole (19), and the top end of the latch pin (20) passes through the lifting component.

8. A lifting device for boiler maintenance according to claim 7, characterized in that: The lifting assembly comprises a slide (21), the slide (21) being sleeved on the outside of the column (3), the slide (21) being abutted against screw discs (22) at the top and bottom respectively, the screw discs (22) being screwed to the side wall of the column (3); a sleeve (23) being fixedly connected to the outside of the slide (21), a through hole being provided on the opposite side of the sleeve (23), the chain link (13) being slidably connected to the sleeve (23) through the through hole; the top end of the latch pin (20) is arranged to pass through the top surface of the sleeve (23).

Images