Maintenance platform in hearth of thermal power plant
By adopting the connecting shell and shell structure in the furnace maintenance platform in the thermal power plant, the worm gear and worm gear and adjustment knob are used to achieve a stable connection of the crossbar, the platform instability caused by insufficient crossbar length is solved and the stability and safety of the platform are improved.
Patent Information
- Application Number
- CN202421862829.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the furnace of the thermal power plant, the connection is unstable when the crossbar length is not enough, which affects the stability of the platform.
The connecting shell and sleeve structure is adopted, and the crossbar is stable connection through the worm gear and worm and the adjustment knob is used to achieve sliding connection through the outer wall of the crossbar.
It realizes a stable connection of the crossbar and improves the overall stability and safety of the maintenance platform.
Smart Images
Figure CN223150222U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of maintenance platforms, in particular to a maintenance platform in a furnace of a thermal power plant. Background Art
[0002] The furnace is a three-dimensional space surrounded by furnace walls for fuel combustion. The function of the furnace is to ensure that the fuel burns as much as possible and to cool the flue gas temperature at the furnace outlet to a temperature that allows the convection heating surface to work safely. To this end, the furnace should have enough space and be equipped with enough heating surfaces. In addition, it should have a reasonable shape and size to facilitate coordination with the burner, organize the air dynamic field in the furnace, and ensure that the flame does not stick to the wall, does not hit the wall, has a high degree of filling, and has a uniform wall heat load.
[0003] When performing furnace maintenance, a maintenance platform is usually built inside the furnace. The platform is composed of multiple vertical poles and horizontal poles fixedly connected. Since the space inside the furnace is large, the horizontal poles used are longer, and the length of the horizontal poles does not meet the requirements and needs to be connected. However, an unstable connection can easily affect the stability of the entire platform. Utility Model Content
[0004] The utility model aims to provide a maintenance platform in the furnace of a thermal power plant to solve the above problems.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A maintenance platform in the furnace of a thermal power plant comprises a cushion springboard and a plurality of vertical poles vertically arranged on the cushion springboard, a plurality of cross bars are arranged on the vertical poles, an extended sweeping rod is horizontally arranged on the upper edge of the cross bar of the lowest layer, a diagonal brace is arranged between the extended sweeping rod and the cross bar of the highest layer, connecting pieces are respectively arranged between the cross bar and the diagonal brace and the vertical poles, a working layer is arranged on each layer of the cross bar, a skirting board is arranged on the side of the working layer close to the diagonal brace, and a top insulating layer is also arranged on the cross bar of the highest layer; the cross bar comprises short cross bars and extended cross bars vertically arranged to each other, a connecting shell is arranged between the extended cross bars, a sleeve shell is symmetrically arranged on both sides of the connecting shell, the extended cross bar is passed through the sleeve shell, and a rotating shaft is arranged at the bottom of the sleeve shell A hole is provided, and rotating shafts are symmetrically arranged on the two side walls of the connecting shell, and the rotating shafts are passed through the rotating shaft holes; a worm wheel and a worm that mesh with each other are arranged in the connecting shell, and the two ends of the worm wheel are passed through the two side walls of the connecting shell, and a number of adjusting sliding holes are evenly passed through the worm wheel, and the two ends of the worm are passed through the two end walls of the connecting shell, and an adjusting knob is arranged at one end of the worm, and the adjusting knob is passed through the end wall of the connecting shell; a number of sliding grooves are opened on the two side walls of the connecting shell, and sliding rods are passed through the adjusting sliding holes and the sliding grooves, and the sliding rod includes a sliding shaft and sliding blocks symmetrically arranged on both sides of the sliding shaft, the sliding shaft is slidably passed through the adjusting sliding hole, and the sliding blocks are respectively passed through the corresponding sliding grooves, and the protruding ends of the sliding blocks are in contact with the end faces of the extended cross bars.
[0007] To further implement the present utility model, the sleeve includes two clamps. One joint end of the two clamps is respectively provided with a groove body and a convex block that are mutually engaged. A rotating shaft hole is penetrated in the groove body and the convex block. The other joint end of the two clamps is respectively provided with connecting plates that cooperate with each other, and a screw rod is arranged between the connecting plates for connection.
[0008] To further implement the present utility model, the inner wall of the clamp fits with the outer wall of the extension cross bar.
[0009] To further implement the present utility model, the adjusting sliding hole is a 1 / 4 circular arc hole, and the adjusting sliding holes are evenly distributed in a circumferential manner.
[0010] To further implement the present utility model, bearing holes are respectively arranged on the two side walls and the two end walls of the connecting shell. The bearing holes on the two side walls are used for arranging the bearing holes of the worm wheel, and the bearing holes on the two end walls are used for arranging the bearings of the worm.
[0011] To further implement the present utility model, there are four adjusting sliding holes, sliding grooves and sliding rods respectively. The sliding grooves and the sliding blocks are of a rectangular parallelepiped structure that cooperate with each other, and the long axes of the four sliding grooves are arranged in a cross shape.
[0012] The beneficial effects of the present utility model compared with the prior art are as follows:
[0013] The sleeve of the present utility model is of an arc-shaped shell structure, and a circular hole for installing a rotating shaft is opened at the lower end of the sleeve. The sleeve is inserted and connected to the outer wall of the rotating shaft as a rotating device. The inner wall of the sleeve fits with the outer wall of the cross bar, and a plate-shaped protrusion for installing a bolt is provided at the upper end of the sleeve, which can firmly sleeve the sleeve on the outer wall of the cross bar to connect the two cross bars.
[0014] The two ends of the connecting shell of the present utility model are opened with circular holes for installing bearings, and convex shafts are provided at both ends of the worm wheel. The convex shafts are inserted and connected to the inner wall of the connecting shell through the bearings as a rotating device. Circular holes for installing bearings are opened on the outer wall of the connecting shell, and both ends of the worm are inserted and connected to the inner wall of the connecting shell through the bearings as a rotating device. By turning the adjusting knob, the worm can be rotated to drive the worm wheel to rotate.
[0015] The adjusting sliding hole of the present utility model is an arc-shaped strip hole, and the sliding shaft is inserted and connected to the inner wall of the adjusting sliding hole as a sliding device. The sliding block is inserted and connected to the inner wall of the sliding groove as a sliding device. When the worm wheel rotates, the sliding shaft can slide along the inner wall of the adjusting sliding hole, and the sliding block can slide along the inner wall of the sliding groove, so as to tightly support the inner wall of the cross bar and make the connection of the cross bar more firm.
[0016] Through the improvement of an overhaul platform in the furnace of a thermal power plant, the present utility model has the advantages of reasonable structural design, convenient connection of cross bars, and stable connection, thus effectively solving the problems and deficiencies in the prior art and equipment. Brief Description of the Drawings
[0017] Figure 1 is a schematic structural view of the present utility model;
[0018] Figure 2 is Figure 1 the right view of;
[0019] Figure 3 is a schematic structural view of the connection shell and the sleeve shell in the present utility model;
[0020] Figure 4 is an exploded structural view of the connection shell and the sleeve shell in the present utility model;
[0021] Figure 5 is a transverse sectional view of the connection shell and the sliding rod in the present utility model;
[0022] Figure 6 is a longitudinal sectional view of the connection shell and the sliding rod in the present utility model.
[0023] The meanings of the reference numerals are as follows: 1, cushion springboard; 2, vertical pole; 3, cross bar; 3-1, short cross bar; 3-2, extended cross bar; 4, connecting piece; 5, extended bottom-sweeping bar; 6, diagonal brace; 7, working layer; 8, kickboard; 9, top isolation layer; 10, connection shell; 11, rotating shaft; 12, sleeve shell; 12-1, groove body; 12-2, rotating shaft hole; 12-3, connecting plate; 12-4, screw; 13, worm gear; 1301, adjusting sliding hole; 14, worm; 15, adjusting knob; 16, sliding groove; 17, sliding shaft; 18, slider. Detailed Description of the Preferred Embodiments
[0024] The present utility model will be further described below in conjunction with the drawings and the detailed description of the preferred embodiments.
[0025] As Figures 1-6As shown, a maintenance platform in the furnace of a thermal power plant comprises a cushion springboard 1 and a plurality of vertical poles 2 vertically arranged on the cushion springboard 1, a plurality of cross bars 3 are arranged on the vertical poles 2, an extended sweeping rod 5 is horizontally arranged on the upper edge of the cross bar 3 of the lowest layer, a diagonal brace 6 is arranged between the extended sweeping rod 5 and the cross bar 3 of the uppermost layer, a connecting piece 4 is respectively arranged between the cross bar 3 and the diagonal brace 6 and the vertical pole 2, a working layer 7 is arranged on each layer of the cross bar 3, a skirting board 8 is arranged on the side of the working layer 7 close to the diagonal brace 6, and a top insulating layer 9 is also arranged on the cross bar 3 of the uppermost layer; the cross bar 3 comprises a short cross bar 3-1 and an extended cross bar 3-2 vertically arranged to each other, a connecting shell 10 is arranged between the extended cross bar 3-2, a sleeve shell 12 is symmetrically arranged on both sides of the connecting shell 10, the extended cross bar 3-2 is penetrated in the sleeve shell 12, a rotating shaft hole 12-2 is arranged at the bottom of the sleeve shell 12, and the two sides of the connecting shell 10 are connected. A rotating shaft 11 is symmetrically arranged on the side wall, and the rotating shaft 11 is penetrated in the rotating shaft hole 12-2; a worm wheel 13 and a worm 14 that mesh with each other are arranged in the connecting shell 10, and two ends of the worm wheel 13 are penetrated in the two side walls of the connecting shell 10, and a plurality of adjusting sliding holes 1301 are evenly penetrated in the worm wheel 13, and two ends of the worm 14 are penetrated in the two end walls of the connecting shell 10, and an adjusting knob 15 is arranged at one end of the worm 14, and the adjusting knob 15 is penetrated outside the end wall of the connecting shell 10; a plurality of sliding grooves 16 are opened on the two side walls of the connecting shell 10, and sliding rods are penetrated in the adjusting sliding holes 1301 and the sliding grooves 16, and the sliding rods include a sliding shaft 17 and sliders 18 symmetrically arranged on both sides of the sliding shaft 17, the sliding shaft 17 is slidably penetrated in the adjusting sliding hole 1301, and the sliders 18 are respectively penetrated in the corresponding sliding grooves 16, and the protruding ends of the sliders 18 are in contact with the end faces of the extended crossbars 3-2.
[0026] The sleeve 12 includes two clamps, and one joint end of the two clamps is respectively provided with a groove body 12-1 and a protrusion that fit together, and a shaft hole 12-2 is penetrated in the groove body 12-1 and the protrusion. The other joint ends of the two clamps are respectively provided with connecting plates 12-3 that fit together, and screws 12-4 are set between the connecting plates 12-3 for connection.
[0027] The inner wall of the clamp is fitted with the outer wall of the extended cross bar 3-2.
[0028] The adjusting sliding holes 1301 are 1 / 4 arc holes, and the adjusting sliding holes 1301 are evenly distributed around the circumference.
[0029] The two side walls and the two end walls of the connecting shell 10 are respectively provided with bearing holes. The bearing holes on the two side walls are used to set the bearing holes of the worm wheel 13, and the bearing holes on the two end walls are used to set the bearings of the worm 14.
[0030] There are four adjusting sliding holes 1301, four sliding grooves 16 and four sliding rods. The sliding grooves 16 and the sliders 18 are rectangular parallelepiped structures that cooperate with each other. The long axes of the four sliding grooves 16 are arranged in a cross shape.
[0031] When performing maintenance inside the furnace, the staff can work above the operation layer 7. When building the platform, if it is necessary to connect the cross bar 3, the cross bar 3 can be inserted into the outer walls of the sliders 18 at both ends of the connection housing 10. By turning the adjustment knob 15, the worm 14 rotates, which can drive the worm wheel 13 to rotate. The sliding shaft 17 slides along the inner wall of the adjustment sliding hole 1301, causing the slider 18 to slide along the inner wall of the sliding groove 16, so as to tightly support the inner wall of the cross bar 3 and make the connection of the cross bar 3 more firm. Then, the sleeve housing 12 is sleeved on the outer wall of the cross bar 3, and the sleeve housing 12 is fixed with bolts.
Claims
1. An overhaul platform inside the furnace of a thermal power plant, characterized in that: The utility model comprises a cushion springboard (1) and a plurality of vertical poles (2) vertically arranged on the cushion springboard (1), a plurality of horizontal poles (3) are arranged on the vertical poles (2), an extended sweeping pole (5) is horizontally arranged on the upper edge of the lowest horizontal pole (3), an inclined brace (6) is arranged between the extended sweeping pole (5) and the uppermost horizontal pole (3), connecting pieces (4) are arranged between the horizontal poles (3) and the inclined brace (6) and the vertical poles (2), and an operating layer (7) is arranged on each layer of the horizontal poles (3), and the operating layer (7) is close to the inclined brace (6). ) is provided with a skirting board (8) on one side, and a top insulating layer (9) is further provided on the topmost cross bar (3); the cross bar (3) comprises a short cross bar (3-1) and an extended cross bar (3-2) which are arranged perpendicular to each other, a connecting shell (10) is provided between the extended cross bars (3-2), a sleeve shell (12) is symmetrically provided on both sides of the connecting shell (10), the extended cross bar (3-2) is inserted into the sleeve shell (12), a rotating shaft hole (12-2) is provided at the bottom of the sleeve shell (12), and two side walls of the connecting shell (10) are opposite to each other. A rotating shaft (11) is provided, and the rotating shaft (11) is inserted into the rotating shaft hole (12-2); a worm wheel (13) and a worm (14) are provided in the connection shell (10), and the two ends of the worm wheel (13) are inserted into the two side walls of the connection shell (10), and a plurality of adjustment sliding holes (1301) are evenly inserted in the worm wheel (13), and the two ends of the worm (14) are inserted into the two end walls of the connection shell (10); an adjustment knob (15) is provided at one end of the worm (14), and the adjustment knob (15) is inserted The connecting shell (10) is provided with a plurality of slide grooves (16) on both side walls of the connecting shell (10), and a slide rod is inserted into the adjusting slide hole (1301) and the slide groove (16), and the slide rod includes a slide shaft (17) and slide blocks (18) symmetrically arranged on both sides of the slide shaft (17), the slide shaft (17) is slidably inserted into the adjusting slide hole (1301), and the slide blocks (18) are respectively inserted into the corresponding slide grooves (16), and the protruding ends of the slide blocks (18) are in contact with the end surface of the extending cross bar (3-2).
2. The overhaul platform in the furnace of a thermal power plant according to claim 1, characterized in that: The sleeve (12) comprises two clamps, one joint end of the two clamps is respectively provided with a groove body (12-1) and a protrusion that fit in with each other, the groove body (12-1) and the protrusion are penetrated with a rotating shaft hole (12-2), the other joint ends of the two clamps are respectively provided with connecting plates (12-3) that fit in with each other, and screw rods (12-4) are provided between the connecting plates (12-3) for connection.
3. The maintenance platform inside the furnace of a thermal power plant according to claim 2, characterized in that: The inner wall of the clamp is fitted with the outer wall of the extended cross bar (3-2).
4. The maintenance platform inside the furnace of a thermal power plant according to claim 3, characterized in that: The adjusting sliding holes (1301) are 1 / 4 arc holes, and the adjusting sliding holes (1301) are evenly distributed around the circumference.
5. The maintenance platform inside the furnace of a thermal power plant according to claim 4, characterized in that: The two side walls and the two end walls of the connection shell (10) are respectively provided with bearing holes, the bearing holes on the two side walls are used to set the bearing holes of the worm wheel (13), and the bearing holes on the two end walls are used to set the bearings of the worm (14).
6. The maintenance platform in the furnace of a thermal power plant according to claim 5, wherein: The number of the adjusting sliding holes (1301), the sliding grooves (16) and the sliding rods are four each, the sliding grooves (16) and the sliding blocks (18) are mutually matched rectangular parallelepiped structures, and the long axes of the four sliding grooves (16) are arranged in a cross shape.