CN214147984U

CN214147984U - Adjustable shrinkage cavity for coal-fired boiler

Info

Publication number: CN214147984U
Application number: CN202021745403.6U
Authority: CN
Inventors: 吴宪来; 顾伦祥
Original assignee: Jiangsu Fulaishi Machinery Co ltd
Current assignee: Jiangsu Fulaishi Machinery Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-09-07
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses an adjustable shrinkage cavity for among coal fired boiler, the device comprises a device main body, the inboard surface of device main part is provided with movable page or leaf, the side surface of device main part is provided with fixed box, the lower extreme surface of fixed box is provided with the graduation apparatus, the inboard of fixed box just passes the position at graduation apparatus center is provided with the axle, the lower extreme surface of axle is provided with adjustment handle. A adjustable shrinkage cavity for in coal fired boiler, through the cooperation of straight-tooth gear and crown gear and activity page or leaf, can change the flow of device main part through-hole, and no dead angle between activity page or leaf and the device main part, can not cause piling up of buggy to influence coal fired boiler's normal operating, through the cooperation of axle and graduation apparatus and pointer, the condition when can the person of facilitating the use observes activity page or leaf and adjusts facilitates.

Description

Adjustable shrinkage cavity for coal-fired boiler

Technical Field

The utility model relates to a vent technical field, in particular to an adjustable shrinkage cavity for in coal fired boiler.

Background

The ventilation hole used in the coal-fired boiler has the advantages of adjustable ventilation opening size, simple structure, easy operation and the like; however, the existing ventilation holes used in the coal-fired boiler have certain disadvantages in use, firstly, the dead angle of the structural characteristics of the existing ventilation holes is large, so that coal dust is easy to accumulate, and the normal use of the coal-fired boiler is influenced.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide an adjustable shrinkage cavity for in coal fired boiler can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an adjustable shrinkage cavity for coal fired boiler, includes the device main part, the inboard surface of device main part is provided with a plurality of activity pages or leaves, the side surface of device main part is provided with fixed box, the lower extreme surface of fixed box is provided with the graduation apparatus, the inboard of fixed box just passes the position at graduation apparatus center is provided with the axle, the lower extreme surface of axle is provided with adjustment handle.

Preferably, a plurality of the movable pages are arranged in a linear array, the transmission shaft is embedded in the inner side of each movable page, the transmission shaft penetrates through the movable pages and is fixedly connected with the movable pages, the right side end of the transmission shaft is embedded in the inner side of the device body and is movably connected with the device body, and the left side end of the transmission shaft penetrates through the outer surface of the device body.

By adopting the technical scheme, the following technical effects can be achieved: the movable pages arranged in an array are driven by the transmission shaft to rotate, and the size of a gap between the movable pages is changed.

Preferably, the left side end surface of transmission shaft is provided with crown gear, the left side end surface of transmission shaft and the laminating of crown gear's right side end surface, and be fixed connection between the two, the left side end surface of device main part and the laminating of the right side end surface of fixed box, and be fixed connection between the two, the transmission shaft is provided with the breach that is used for dodging the activity page or leaf with the junction of device main part, the bolt hole has been inlayed along its circumferencial direction to the upper end surface of device main part, the quantity of bolt hole is a plurality of, and is the circumference array and arranges.

By adopting the technical scheme, the following technical effects can be achieved: the crown gear is meshed with the straight gear.

Preferably, the inboard that the side end surface of transmission shaft corresponds fixed box is provided with the fixed plate, the fixed plate is swing joint with the transmission shaft, the laminating of the lower extreme surface of fixed plate and the inboard upper end surface of fixed box, and be fixed connection between the two, the inboard that the left side end surface of crown gear corresponds fixed box is provided with the axle, the side that the surface of axle corresponds crown gear is provided with the spur gear, be fixed connection between spur gear and the axle, spur gear and crown gear mesh mutually, and be the transmission connection between the two.

By adopting the technical scheme, the following technical effects can be achieved: the shaft drives the spur gear and the crown gear to rotate.

Preferably, the axle inlays in the inboard of fixed box, and is swing joint between the two, be swing joint between axle and fixed box and the graduation apparatus, the surface that the front end of graduation apparatus corresponds the axle is provided with the pointer, the rear end surface of pointer and the laminating of the front end surface of graduation apparatus, and be swing joint between the two, be fixed connection between pointer and adjustment handle and the axle.

By adopting the technical scheme, the following technical effects can be achieved: the opening and closing degree of the movable page can be known through the matching of the pointer and the dial gauge when the adjusting handle rotates.

Compared with the prior art, the utility model discloses following beneficial effect has: when the adjustable shrinkage cavity used in a coal-fired boiler is used, a user rotates the adjusting handle to enable the adjusting handle to drive the shaft to rotate, the crown gear can be rotated due to the meshing of the straight gear and the crown gear, the transmission shaft is driven to rotate through the rotation of the crown gear, the size of a gap between movable pages can be changed through the matching of the movable pages which are arranged in an array and the transmission shaft according to the rotation of the adjusting handle, thereby realizing the change of the flow of a ventilation opening of the device body, the rotation degree of the shaft can be observed through the matching of a pointer and a dial gauge, when the movable pages rotate, the gap on the inner side of the device body is a gap for preventing the movable pages from interfering with the device body when rotating, the device body and a pipeline can be connected through a bolt hole by the user, when the user rotates the adjusting handle, the pointer can also rotate along with the adjustment, and the deflection angle of the pointer in the dial gauge is contrasted, can know the size in gap between the activity page or leaf, through the cooperation of spur gear and crown gear and activity page or leaf, can change the flow of device main part through-hole, and do not have the dead angle between activity page or leaf and the device main part, can not cause piling up of buggy to influence coal fired boiler's normal operating, through the cooperation of axle and graduation apparatus and pointer, the condition when can convenient to use person knows the activity page or leaf and adjusts, and facilitate, and whole adjustable shrinkage cavity that is used for in coal fired boiler is better than in traditional mode.

Drawings

FIG. 1 is a schematic view of the overall structure of an adjustable shrinkage cavity used in a coal-fired boiler according to the present invention;

FIG. 2 is a cross-sectional view of an adjustable shrinkage cavity for use in a coal fired boiler according to the present invention;

in the figure: 1. a device main body; 2. a live page; 3. a fixing box; 4. a dial gauge; 5. a shaft; 6. an adjusting handle; 7. a drive shaft; 8. a spur gear; 9. a crown gear; 10. a notch; 11. bolt holes.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-2, an adjustable shrinkage cavity for a coal-fired boiler comprises a device body 1, a plurality of movable leaves 2 are arranged on the outer surface of the inner side of the device body 1, a fixed box 3 is arranged on the outer surface of the side end of the device body 1, a dial gauge 4 is arranged on the outer surface of the lower end of the fixed box 3, a shaft 5 is arranged on the inner side of the fixed box 3 and penetrates through the center of the dial gauge 4, and an adjusting handle 6 is arranged on the outer surface of the lower end of the shaft 5.

A plurality of activity pages 2 are linear array and arrange, transmission shaft 7 has been inlayed to the inboard of activity page 2, transmission shaft 7 runs through in activity page 2, and be fixed connection between the two, the right side end of transmission shaft 7 inlays in the inboard of device main part 1, and be swing joint between the two, the left side end of transmission shaft 7 runs through in the surface of device main part 1, it makes its rotation to drive the activity page 2 that is array and arranges through transmission shaft 7, change the size in gap between the activity page 2.

The left side end surface of transmission shaft 7 is provided with crown gear 9, and the left side end surface of transmission shaft 7 and the laminating of the right side end surface of crown gear 9 are fixed connection between the two, and the laminating of the left side end surface of device main part 1 and the right side end surface of fixed box 3, and be fixed connection between the two, transmission shaft 7 is provided with the breach 10 that is used for dodging the activity page or leaf with the junction of device main part 1, bolt hole 11 has been inlayed along its circumferencial direction to the upper end surface of device main part 1, the quantity of bolt hole 11 is a plurality of, and is the circumference array and arranges, crown gear 9 and straight-tooth gear 8 intermeshing.

The inboard that the side surface of transmission shaft 7 corresponds fixed box 3 is provided with the fixed plate, the fixed plate is swing joint with transmission shaft 7, the lower extreme surface of fixed plate and the inboard upper end surface laminating of fixed box 3, and be fixed connection between the two, the left side end surface of crown gear 9 corresponds the inboard of fixed box 3 and is provided with axle 5, the surface of axle 5 corresponds the side of crown gear 9 and is provided with spur gear 8, be fixed connection between spur gear 8 and the axle 5, spur gear 8 meshes with crown gear 9 mutually, and be the transmission connection between the two, axle 5 drives spur gear 8 and crown gear 9 and rotates.

Axle 5 inlays in the inboard of fixed box 3, and be swing joint between the two, be swing joint between axle 5 and fixed box 3 and the graduation apparatus 4, the surface that the front end of graduation apparatus 4 corresponds axle 5 is provided with the pointer, the rear end surface of pointer and the laminating of the front end surface of graduation apparatus 4, and be swing joint between the two, be fixed connection between pointer and adjustment handle 6 and the axle 5, the degree of opening and shutting of activity page or leaf 2 is known in the accessible pointer when rotating through adjustment handle 6 and the cooperation of graduation apparatus 4.

It should be noted that, the utility model relates to an adjustable shrinkage cavity used in a coal-fired boiler, when in use, a user rotates the adjusting handle 6 to enable the adjusting handle 6 to drive the shaft 5 to rotate, the crown gear 9 can be rotated due to the engagement of the straight gear 8 and the crown gear 9, the transmission shaft 7 is driven to rotate by the rotation of the crown gear 9, the movable leaves 2 arranged in an array and the transmission shaft 7 are matched, the size of the gap between the movable leaves 2 can be changed according to the rotation of the adjusting handle 6, thereby realizing the change of the flow of the vent of the device main body 1, the rotation degree of the shaft 5 can be observed by the matching of a pointer and a dial gauge 4, when the movable leaves 2 rotate, the notch 10 at the inner side of the device main body 1 is used for preventing the movable leaves 2 from being clamped, the user can fix the device main body 1 and equipment to be used through the bolt holes 11, the user is when rotating adjustment handle 6, its pointer also can follow the rotation, the deflection angle of contrast pointer at graduation apparatus 4, can know the size in gap between the activity page or leaf 2, cooperation through straight-teeth gear 8 and crown gear 9 and activity page or leaf 2, can change the flow of 1 through-hole of device main part, and there is not the dead angle between activity page or leaf 2 and the device main part 1, can not cause piling up of buggy to influence coal fired boiler's normal operating, cooperation through axle 5 and graduation apparatus 4 and pointer, condition when can convenient to use person observe activity page or leaf 2 and adjust, and convenience is provided, and is relatively practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An adjustable shrinkage cavity for a coal-fired boiler, comprising a device body (1), characterized in that: the device is characterized in that a plurality of movable pages (2) are arranged on the outer surface of the inner side of the device body (1), a fixed box (3) is arranged on the outer surface of the side end of the device body (1), a dial gauge (4) is arranged on the outer surface of the lower end of the fixed box (3), the inner side of the fixed box (3) penetrates through the center of the dial gauge (4) and is provided with a shaft (5), and an adjusting handle (6) is arranged on the outer surface of the lower end of the shaft (5).

2. An adjustable shrinkage cavity for use in a coal fired boiler according to claim 1, wherein: it is a plurality of activity page or leaf (2) are linear array and arrange, transmission shaft (7) have been inlayed to the inboard of activity page or leaf (2), transmission shaft (7) run through in activity page or leaf (2), and be fixed connection between the two, the right side end of transmission shaft (7) inlays in the inboard of device main part (1), and is swing joint between the two, the left side end of transmission shaft (7) runs through in the surface of device main part (1).

3. An adjustable shrinkage cavity for use in a coal fired boiler according to claim 2, wherein: the left side end surface of transmission shaft (7) is provided with crown gear (9), the left side end surface of transmission shaft (7) is laminated with the right side end surface of crown gear (9), and is fixed connection between the two, the left side end surface of device main part (1) is laminated with the right side end surface of fixed box (3), and is fixed connection between the two, transmission shaft (7) is provided with breach (10) that are used for dodging the activity page or leaf with the junction of device main part (1), bolt hole (11) have been inlayed along its circumferencial direction to the upper end surface of device main part (1), the quantity of bolt hole (11) is a plurality of, and is the circumference array and arranges.

4. An adjustable shrinkage cavity for use in a coal fired boiler according to claim 3, wherein: the inboard that the side surface of transmission shaft (7) corresponds fixed box (3) is provided with the fixed plate, the fixed plate is swing joint with transmission shaft (7), the lower extreme surface of fixed plate and the laminating of the inboard upper end surface of fixed box (3), and be fixed connection between the two, the inboard that the left side end surface of crown gear (9) corresponds fixed box (3) is provided with axle (5), the side that the surface of axle (5) corresponds crown gear (9) is provided with spur gear (8), be fixed connection between spur gear (8) and axle (5), spur gear (8) and crown gear (9) mesh mutually, and be the transmission connection between the two.

5. An adjustable shrinkage cavity for use in a coal fired boiler according to claim 1, wherein: the utility model discloses a graduation apparatus, its structure is characterized in that axle (5) inlays in the inboard of fixed box (3), and is swing joint between the two, be swing joint between axle (5) and fixed box (3) and graduation apparatus (4), the surface that the front end of graduation apparatus (4) corresponds axle (5) is provided with the pointer, the rear end surface of pointer and the laminating of the front end surface of graduation apparatus (4), and be swing joint between the two, be fixed connection between pointer and adjustment handle (6) and axle (5).