CN111451982A

CN111451982A - Auxiliary installation device of wind scooper on centrifugal fan

Info

Publication number: CN111451982A
Application number: CN202010315481.0A
Authority: CN
Inventors: 谢浔
Original assignee: Wuhan Yanhua Zhizao Environmental Protection Technology Co ltd
Current assignee: Wuhan Yanhua Zhizao Environmental Protection Technology Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-07-28

Abstract

The invention discloses an auxiliary mounting device of an air guide cover on a centrifugal fan, which comprises a bottom plate, wherein a cross beam is arranged above the bottom plate, guide grooves are formed at two ends of the cross beam, strip-shaped clamping plates are abutted against the front end surfaces at two ends of the cross beam, an L-shaped clamping rod is fixed on the front end surface at the inner side of each clamping plate, a plurality of guide posts are fixed on the rear end surface of each clamping plate, the guide posts are inserted into the guide grooves of the cross beam and penetrate through the cross beam to be inserted and fixed into L-shaped sliding plates, a transverse driving shaft is arranged between the sliding plates, screw rods are formed at two ends of the driving shaft, the sliding plates are screwed on the screw rods of the driving shaft, one end of the screw rods, which deviates from the driving shaft, is hinged on a support, the support.

Description

Auxiliary installation device of wind scooper on centrifugal fan

Technical Field

The invention relates to the technical field of fans, in particular to an auxiliary mounting device for an air guide cover on a centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust extraction and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings. The existing centrifugal fan generally comprises a volute, an air inlet of the fan is formed on the side end face of the volute, in order to realize better air inlet effect of the centrifugal fan, a conical air guide cover is generally arranged in air inlet of the volute, and a flange is formed on the air guide cover and is fixedly connected with the volute through a bolt assembly; the centrifugal fans used in some mines and tunnels are huge at present, and the air guide covers installed on the centrifugal fans are also large in size, heavy in weight and troublesome in the installation process.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an auxiliary mounting device for an air guide cover on a centrifugal fan, which can clamp the air guide cover and lift and insert the air guide cover into a volute of the centrifugal fan, so that the air guide cover and the volute are convenient to mount.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides an auxiliary installation device of wind scooper on centrifugal fan, comprising a base plate, the top of bottom plate is equipped with the crossbeam, the both ends shaping of crossbeam has the guide way, support on the preceding terminal surface at crossbeam both ends and lean on the splint that have the bar, be fixed with the clamping bar of L type on the preceding terminal surface of splint inboard, be fixed with a plurality of guide posts on the rear end surface of splint, the guide post is inserted and is established in the guide way of crossbeam and pass the crossbeam grafting and fix the sliding plate in L type, be equipped with horizontal drive shaft between the sliding plate, the both ends shaping of drive shaft has the screw rod, the sliding plate spiro union is on the screw rod of drive shaft, the one end that the screw rod deviates from the drive shaft articulates on the support, the support is fixed at the both ends of crossbeam, the;

the middle part of the rear end face of the cross beam is fixedly provided with a sliding block, a driving shaft is inserted on the sliding block, the rear end of the sliding block is inserted in a groove rail with the section being shaped like , the lower end of the groove rail is fixed on a bottom plate, the upper end of the groove rail is fixedly provided with a top plate, the sliding block is in threaded connection with a vertical lead screw, the two ends of the lead screw are respectively hinged on the bottom plate and the top plate, and the upper end of the lead screw penetrates through the top plate and is fixedly connected with a.

Preferably, a plurality of branch supporting plates are formed on the front end face of the bottom plate, and wheels are fixedly connected to the branch supporting plates and the lower end face of the bottom plate.

Preferably, the wheels on the bottom plate are directional wheels, and the wheels on the branch plate are universal wheels.

Preferably, the screw threads of the screws at the two ends of the driving shaft are opposite in rotating direction, a limiting threaded sleeve is screwed on the screw rod of the driving shaft close to one end of the first handle, and the limiting threaded sleeve abuts against the inner side wall of the support.

Preferably, the two side walls of the sliding block are abutted against the inner walls of the two sides of the groove rail, the sliding block is inserted with a vertical supporting rod, the lower end of the supporting rod is fixed on the bottom plate, and the upper end of the supporting rod is fixed on the top plate.

Preferably, the rear end of the clamping rod is fixed with an inclined support, the other end of the inclined support is fixed on the clamping plate,

preferably, horizontal grab rails are fixed on two side walls of the groove rail.

Preferably, the handrail rod is fixed with a stand column, and the lower end of the stand column is fixed on the bottom plate.

The invention has the beneficial effects that: the wind scooper can be clamped and lifted and inserted into the volute of the centrifugal fan, so that the wind scooper and the volute are convenient to install.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a side view of the present invention;

fig. 4 is a schematic top view of the present invention.

In the figure: 1. a base plate; 1a, a branch plate; 2. a cross beam; 2a, a guide groove; 3. a splint; 4. a sliding plate; 5. a clamping bar; 6. a drive shaft; 7. a support; 8. a slider; 9. a lead screw; 10. a groove rail; 11. a support bar; 12. a top plate; 13. a second handle; 14. a first handle; 15. a limiting screw sleeve; 16. a grab rail; 17. a column; 18. a wheel; 19. and (5) obliquely supporting.

Detailed Description

The embodiment is shown in figures 1 to 4, an auxiliary mounting device for an air guide cover on a centrifugal fan comprises a bottom plate 1, a cross beam 2 is arranged above the bottom plate 1, guide grooves 2a are formed at two ends of the cross beam 2, strip-shaped clamping plates 3 abut against the front end faces of the two ends of the cross beam 2, L-shaped clamping rods 5 are fixed on the front end faces of the inner sides of the clamping plates 3, a plurality of guide columns are fixed on the rear end face of the clamping plate 3, the guide columns are inserted into the guide grooves 2a of the cross beam 2 and penetrate through the cross beam 2 to be fixedly inserted into L-shaped sliding plates 4, a transverse driving shaft 6 is arranged between the sliding plates 4, screw rods are formed at two ends of the driving shaft 6, the sliding plates 4 are screwed on the screw rods of the driving shaft 6, one end of the screw rods, which deviates from the driving shaft 6, is hinged on a support 7, the support 7 is fixed at two ends;

the middle part of the rear end face of the cross beam 2 is fixedly provided with a sliding block 8, a driving shaft 6 is inserted on the sliding block 8, the rear end of the sliding block 8 is inserted in a groove rail 10 with the section being shaped like , the lower end of the groove rail 10 is fixed on the bottom plate 1, the upper end of the groove rail 10 is fixedly provided with a top plate 12, the sliding block 8 is screwed with a vertical screw rod 9, two ends of the screw rod 9 are respectively hinged on the bottom plate 1 and the top plate 12, and the upper end of the screw rod 9 penetrates through the top plate 12 and is fixedly connected with a second handle 13.

A plurality of branch supporting plates 1a are formed on the front end face of the bottom plate 1, and wheels 18 are fixedly connected to the branch supporting plates 1a and the lower end face of the bottom plate 1.

The wheels 18 on the bottom plate 1 are directional wheels, and the wheels 18 on the branch supporting plate 1a are universal wheels.

The screw threads of the screws at the two ends of the driving shaft 6 are opposite in rotating direction, the screw rod of the driving shaft 6 close to one end of the first handle 14 is in threaded connection with a limiting threaded sleeve 15, and the limiting threaded sleeve 15 abuts against the inner side wall of the support 7.

Two side walls of the sliding block 8 are abutted against the inner walls of two sides of the groove rail 10, a vertical supporting rod 11 is inserted on the sliding block 8, the lower end of the supporting rod 11 is fixed on the bottom plate 1, and the upper end of the supporting rod 11 is fixed on the top plate 12.

The rear end of the clamping rod 5 is fixed with an inclined support 19, the other end of the inclined support 19 is fixed on the clamping plate 3,

horizontal grab rails 16 are fixed on two side walls of the groove rail 10.

An upright post 17 is fixed on the grab rail 16, and the lower end of the upright post 17 is fixed on the bottom plate 1.

The working principle is as follows: the invention relates to an auxiliary mounting device for an air guide cover on a centrifugal fan, which has the main technical points that the air guide cover can be clamped, lifted and carried and is conveyed into an air inlet of a volute, only a bolt assembly is required to be mounted at the time, and the air guide cover and the volute are fixed together, and the specific clamping, lifting and carrying modes are as follows:

clamping: when the clamping rod 5 and the clamping plate 3 are positioned at the lower part of the device, the wind guide cover can be inserted into the clamping rod 5, a flange of the wind guide cover abuts against the clamping plate 3, then the first hand crank 14 is rotated, the clamping rods 5 respectively move towards the two ends of the cross beam 2, and the wind guide cover is clamped by the clamping rod 5; the separation of the wind scooper from the device in the moving process can be prevented; lifting: the second hand crank 13 is rotated, so that the screw 9 can rotate to drive the slide block 8 to move upwards, and the cross beam 2 is driven to move upwards together; carrying: the grab bar 16 is held by hand, and the device is pushed.

The examples are intended to illustrate the invention, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the invention as set forth in the appended claims.

Claims

1. An auxiliary mounting device of an air guide cover on a centrifugal fan comprises a bottom plate (1), wherein a cross beam (2) is arranged above the bottom plate (1), and is characterized in that guide grooves (2a) are formed at two ends of the cross beam (2), strip-shaped clamping plates (3) are abutted against front end faces at two ends of the cross beam (2), L-shaped clamping rods (5) are fixed on front end faces of the inner sides of the clamping plates (3), a plurality of guide columns are fixed on rear end faces of the clamping plates (3), the guide columns are inserted into the guide grooves (2a) of the cross beam (2) and penetrate through the cross beam (2) to be fixed on a L-shaped sliding plate (4) in an inserting mode, a transverse driving shaft (6) is arranged between the sliding plates (4), screw rods are formed at two ends of the driving shaft (6), the sliding plate (4) is screwed on screw rods of the driving shaft (6), one end of the screw rods, which deviates from the driving shaft (6), is hinged on a support (7), the two ends of the cross beam (2) are fixed at two ends of the support (7;

the middle of the rear end face of the cross beam (2) is fixedly provided with a sliding block (8), a driving shaft (6) is inserted into the sliding block (8), the rear end of the sliding block (8) is inserted into a groove rail (10) with the section being in the shape of , the lower end of the groove rail (10) is fixed on the bottom plate (1), the upper end of the groove rail (10) is fixedly provided with a top plate (12), the sliding block (8) is in threaded connection with a vertical lead screw (9), the two ends of the lead screw (9) are respectively hinged to the bottom plate (1) and the top plate (12), and the upper end of the lead screw (9) penetrates through the top plate (12) and is fixedly connected with a second hand crank (.

2. The auxiliary mounting device for the wind scooper of the centrifugal fan as claimed in claim 1, wherein: a plurality of branch supporting plates (1a) are formed on the front end face of the bottom plate (1), and wheels (18) are fixedly connected to the branch supporting plates (1a) and the lower end face of the bottom plate (1).

3. The auxiliary mounting device for the wind scooper of the centrifugal fan as claimed in claim 2, wherein: the wheels (18) on the bottom plate (1) are directional wheels, and the wheels (18) on the branch supporting plate (1a) are universal wheels.

4. The auxiliary mounting device for the wind scooper of the centrifugal fan as claimed in claim 1, wherein: the screw threads of the screws at the two ends of the driving shaft (6) are opposite in rotating direction, a limiting threaded sleeve (15) is connected to the screw of the driving shaft (6) close to one end of the first handle (14) in a threaded mode, and the limiting threaded sleeve (15) abuts against the inner side wall of the support (7).

5. The auxiliary mounting device for the wind scooper of the centrifugal fan as claimed in claim 1, wherein: the two side walls of the sliding block (8) are abutted against the inner walls of the two sides of the groove rail (10), the sliding block (8) is inserted with a vertical supporting rod (11), the lower end of the supporting rod (11) is fixed on the bottom plate (1), and the upper end of the supporting rod (11) is fixed on the top plate (12).

6. The auxiliary mounting device for the wind scooper of the centrifugal fan as claimed in claim 1, wherein: the rear end of the clamping rod (5) is fixed with an inclined support (19), and the other end of the inclined support (19) is fixed on the clamping plate (3).

7. The auxiliary mounting device for the wind scooper of the centrifugal fan as claimed in claim 1, wherein: horizontal grab rails (16) are fixed on two side walls of the groove rail (10).

8. The auxiliary mounting device for the wind scooper of the centrifugal fan according to claim 7, wherein: the handrail rod (16) is fixed with an upright post (17), and the lower end of the upright post (17) is fixed on the bottom plate (1).