CN216613730U

CN216613730U - Lifting equipment for steam-electricity dual-drive draught fan

Info

Publication number: CN216613730U
Application number: CN202121967785.1U
Authority: CN
Inventors: 时标; 张宪岭; 颜刚; 梁学东; 张允洲; 葛宗琴
Original assignee: Huaneng Nanjing Jinling Power Generation Co Ltd
Current assignee: Huaneng Nanjing Jinling Power Generation Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-05-27
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a lifting device for a steam-electricity dual-drive induced draft fan, which relates to the technical field of lifting of induced draft fans, and comprises a bracket, wherein the top of the bracket is fixedly connected with a cross beam, the outer side wall of the cross beam is fixedly connected with a cross frame, the inner side wall of the cross frame is provided with a slide rail, the inner side wall of the slide rail is slidably connected with a lifting piece, the inner side wall of the lifting piece is provided with a lifting motor, the output end of the lifting motor is connected with a transmission rod, the outer side wall of the transmission rod is fixedly connected with a transmission thread, the inner side wall of the lifting piece is rotatably connected with a transmission gear, through the matching work of the lifting motor and the transmission gear, when a lifting demand exists, the lifting motor can be started firstly, when the lifting motor starts to rotate, the transmission gear can be driven to rotate to put down a lifting rope, after the induced draft fan is fixed, the lifting motor can be reversed, when the hoisting motor is reversed, the winding wheel can hoist the induced draft fan through the hoisting rope, and the installation and the operation are convenient.

Description

Lifting equipment for steam-electricity dual-drive draught fan

Technical Field

The utility model relates to the technical field of draught fan hoisting, in particular to a hoisting device for a steam-electric dual-drive draught fan.

Background

The national environmental protection requirements stipulate that the FGD system of a newly-built power plant is not provided with a flue gas bypass and the existing FGD system needs to take the mandatory measure of removing a bypass flue, so that the power plant has higher and higher requirements on the FGD system. The FGD system is not provided with a flue gas bypass, the operation of the FGD system is directly related to the safety of the unit, the unit must be stopped when the FGD system is stopped, and all the flue gas from the ignition of the boiler directly enters the absorption tower for treatment, so that the design of the flue gas system is greatly different from that of the conventional FGD system. Therefore, when the new and old power plants are additionally provided with the desulfurization devices, the induced draft fan and the desulfurization supercharger are generally combined, and hoisting equipment is often needed in the combining process.

The utility model provides a lifting tool for thermal power plant maintenance, and relates to the technical field of thermal power plant maintenance equipment, wherein the lifting tool comprises a device main body, a sliding block and a telescopic rod, a first motor is embedded in the middle of the top end of the device main body, a movable disc is arranged in the middle of the bottom end of the device main body, and the rotating output end of the first motor is fixedly connected with the top end of the movable disc. According to the utility model, through the movable disc, lifting equipment is required to be used when small equipment in a thermal power plant is maintained, when the equipment required to be maintained is lifted by the lifting main body, a user can place the equipment more as required to be adjusted, the two second motors rotate to drive the rotating gear to rotate so as to enable the sliding block to move along the sliding groove, so that the first motor is started to drive the movable disc to rotate while the equipment lifted by the lifting main body can move left and right, the device can freely adjust the equipment placing position by three hundred sixty degrees, and the use convenience is greatly improved.

Among the contrast file, lack the fixing device to equipment at the in-process of lifting by crane, when lifting by crane, it drops easily and causes the threat to equipment and staff's personal safety to lift by crane the goods, operation process is more complicated when using in the contrast file simultaneously, influence operating personnel's work efficiency, to the hoist and mount mode of article in the contrast file simultaneously, it is too single, the multiple hoist and mount condition of unable adaptation, the use of equipment has been restricted greatly, make it increase the limitation, the unable angle regulation of equipment when hoist and mount in the contrast file simultaneously, the result of use of equipment has been restricted greatly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a lifting device for a steam-electric dual-drive draught fan.

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

the utility model provides a vapour electricity dual drive induced air machine lifts by crane equipment, includes the support, the top fixedly connected with crossbeam of support, the lateral wall fixedly connected with crossbearer of crossbeam, the slide rail has been seted up to the inside wall of crossbearer, the inside wall sliding connection of slide rail has the hoisting member, the inside wall of hoisting member is equipped with hoisting motor, hoisting motor's output is connected with the transfer line, the lateral wall fixedly connected with transmission screw thread of transfer line, the inside wall of hoisting member rotates and is connected with drive gear, drive gear sets up with the meshing of transmission screw thread, drive gear's lateral wall fixedly connected with wire winding wheel, the fixed wire winding of lateral wall of wire winding wheel has the hoisting rope, the tip fixedly connected with lifting hook of hoisting rope, the lifting hook hookup has the mounting, the interior survey wall of mounting is equipped with fixture

Preferably, fixture includes the centre gripping motor of fixed connection survey wall in the mounting, the output fixedly connected with transmission horizontal pole of centre gripping motor, the front end and the rear end of transmission horizontal pole are equipped with the external screw thread respectively, the sliding tray has been seted up to the inside wall of mounting, the inside wall sliding connection of sliding tray has the holder, the upper end portion threaded hole of holder, the tip fixedly connected with solid fixed splint of mounting, the lateral wall fixedly connected with angle modulation carousel and the solid fixed rotary table of centre gripping motor.

Preferably, the two sets of external threads of the transmission cross rod have the same pitch and are opposite in thread.

Preferably, a groove is formed between the rope winding wheel and the transmission gear, and friction particles are arranged in the groove.

Preferably, the outer side wall of the fixing piece is provided with a connecting piece, and the connecting piece is positioned at the top of the fixing piece.

Preferably, the motor access door is arranged on the outer side wall of the fixing piece, and observation glass is arranged on the outer side wall of the motor access door.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the lifting equipment for the steam-electricity dual-drive draught fan, the lifting motor can be turned on firstly when lifting requirements exist through the cooperation of the lifting motor and the transmission gear, the transmission gear can be driven to rotate to put down the lifting rope when the lifting motor starts to rotate, the draught fan can be reversed after the draught fan is fixed, the draught fan can be lifted through the lifting rope by the winding wheel when the lifting motor is reversed, the installation and the operation are convenient, the whole operation process is simple, the lifting equipment is driven completely by the forward and reverse rotation of the lifting motor, complex operation is not needed, and the lifting work efficiency is greatly improved.

2. According to the lifting equipment for the steam-electricity dual-drive draught fan, an operator can select a lifting mode according to the actual requirement for lifting the draught fan, when the lifting hook is convenient to use, the lifting hook can be directly used for lifting, when the lifting hook is inconvenient to operate, the lifting hook can be hooked on the connecting piece at the top of the fixing piece, the fixing piece is used for lifting, when the fixing piece is used for lifting, the fixing piece can form a clamping mechanism through the transmission cross rod, the clamping mechanism is used for clamping and lifting the draught fan, and when the clamping and lifting are carried out, the angle of the rotary disc can be adjusted by the operator according to the use requirement, so that the lifting can be completed better, and the phenomenon that the lifting mode for objects in the traditional technology is too single, the lifting equipment cannot adapt to various lifting conditions, and the use of the equipment is greatly limited is solved.

Drawings

Fig. 1 is a schematic structural diagram of a lifting device for a steam-electric dual-drive induced draft fan according to the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

fig. 3 is an enlarged view of B in fig. 1.

In the figure: 1 bracket, 2 cross beams, 3 fixing parts, 201 sliding rails, 202 hoisting parts, 203 hoisting motors, 204 transmission threads, 205 transmission gears, 206 rope winding wheels, 207 hoisting ropes, 301 transmission cross bars, 302 clamping motors, 303 fixing clamping plates, 304 clamping parts, 305 external threads, 306 fixing turntables and 307 angle adjusting turntables.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 and 2, a lifting device for a steam-electric dual-drive draught fan comprises a support 1, a cross beam 2 is fixedly connected to the top of the support 1, a cross frame is fixedly connected to the outer side wall of the cross frame 2, a slide rail 201 is arranged on the inner side wall of the cross frame, a lifting piece 202 is slidably connected to the inner side wall of the slide rail 201, a lifting motor 203 is arranged on the inner side wall of the lifting piece 202, an output end of the lifting motor 203 is connected with a transmission rod, a transmission thread 204 is fixedly connected to the outer side wall of the transmission rod, a transmission gear 205 is rotatably connected to the inner side wall of the lifting piece 202, the transmission gear 205 is meshed with the transmission thread 204, a rope winding wheel 206 is fixedly connected to the outer side wall of the transmission gear 205, a groove is formed between the rope winding wheel 206 and the transmission gear, friction particles are arranged in the groove, a lifting rope 207 is fixedly wound on the outer side wall of the rope winding wheel 206, a lifting hook is fixedly connected with a lifting hook 3, the outer side wall of the fixing part 3 is provided with a motor access door, the outer side wall of the motor access door is provided with observation glass, the outer side wall of the fixing part 3 is provided with a connecting piece, the connecting piece is positioned at the top of the fixing part, the inner side wall of the fixing part 3 is provided with a clamping mechanism, when a hoisting requirement exists, the hoisting motor 203 can be opened firstly, when the hoisting motor 203 starts to rotate, the transmission gear 205 is driven to rotate to put down a hoisting rope 207, after the draught fan is fixed, the hoisting motor 203 can be inverted, when the hoisting motor 203 is inverted, the reel 206 can hoist the draught fan through the hoisting rope 207, when the hoisting motor 203 is clamped to hoist, an operator can adjust the angle of the turntable 307 according to the use requirement so as to better finish hoisting, the installation and the operation are convenient, the whole operation process is simple, and the whole operation process completely depends on the forward and backward rotation driving of the hoisting motor 203, complex operation is not needed, and the hoisting working efficiency is greatly improved.

Referring to fig. 3, fixture includes the centre gripping motor 302 of fixed connection survey the wall in mounting 3, the output fixedly connected with transmission horizontal pole 301 of centre gripping motor 302, two sets of external screw thread 305 of transmission horizontal pole 301, the pitch is the same, the screw thread is opposite, the front end and the rear end of transmission horizontal pole 301 are equipped with external screw thread 305 respectively, the sliding tray has been seted up to mounting 3's inside wall, the inside wall sliding connection of sliding tray has holder 304, the upper end portion of holder 304 sets up threaded hole, the tip fixedly connected with solid fixed splint 303 of mounting 3, the outside wall fixedly connected with angle modulation carousel 307 and the solid fixed turntable 306 of centre gripping motor 302.

The functional principle of the present invention can be illustrated by the following operation mode

Referring to fig. 1-3, when in use, firstly, the hoisting motor 203 is turned on, when the hoisting motor 203 starts to rotate, the transmission rod at the output end is driven to rotate, when the transmission rod rotates, the transmission gear 205 is driven to rotate through the transmission thread 204, when the transmission gear 205 rotates, the rope winding wheel 206 is driven to rotate, when the rope winding wheel 206 rotates, the hoisting rope 207 drives the hook to descend, when the hook descends, a user can select a hoisting mode according to the actual requirement of a hoisting draught fan, when the hook is convenient to use, the hook can be directly hoisted by the hook, when the hook is inconvenient to operate, the hook can be hooked on a connecting piece at the top of the fixing piece 3, the fixing piece 3 is used for hoisting, when the fixing piece 3 is used for hoisting, only the clamping motor 302 needs to be started, when the clamping motor 302 is started, the transmission cross rod 301 enables the two clamping pieces 304 to move towards opposite directions through the external threads on the outer side wall of the clamping cross rod 301, and a clamping mechanism is formed by a fixing clamping plate 303 arranged on the side edge of the fixing part 3, the induced draft fan is clamped and lifted, after the induced draft fan is completely fixed, the clamping motor 302 is closed, the hoisting motor 203 is started to rotate reversely, and when the hoisting motor 203 rotates reversely, the transmission gear 205 can drive the rope winding wheel 206 to lift the induced draft fan through the hoisting rope 207. The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a vapour electricity dual drive induced air machine lifts by crane equipment, includes support (1), its characterized in that, the top fixedly connected with crossbeam (2) of support (1), the lateral wall fixedly connected with crossbearer of crossbeam (2), slide rail (201) have been seted up to the inside wall of crossbearer, the inside wall sliding connection of slide rail (201) has hoisting member (202), the inside wall of hoisting member (202) is equipped with hoisting motor (203), the output of hoisting motor (203) is connected with the transfer line, the lateral wall fixedly connected with transmission screw thread (204) of transfer line, the inside wall of hoisting member (202) rotates and is connected with drive gear (205), drive gear (205) and transmission screw thread (204) meshing set up, the lateral wall fixedly connected with of drive gear (205) winds rope sheave (206), the lateral wall fixed winding of rope sheave (206) has hoisting rope (207), the end part of the hoisting rope (207) is fixedly connected with a lifting hook, the lifting hook is hooked with a fixing part (3), and the inner side wall of the fixing part (3) is provided with a clamping mechanism.

2. The lifting device for the steam-electric dual-drive draught fan is characterized in that the clamping mechanism comprises a clamping motor (302) fixedly connected to the inner side of the fixing piece (3) and used for measuring the wall, a transmission cross rod (301) is fixedly connected to the output end of the clamping motor (302), external threads (305) are respectively arranged at the front end and the rear end of the transmission cross rod (301), a sliding groove is formed in the inner side wall of the fixing piece (3), a clamping piece (304) is slidably connected to the inner side wall of the sliding groove, a threaded hole is formed in the upper end of the clamping piece (304), a fixing clamp plate (303) is fixedly connected to the end of the fixing piece (3), and an angle adjusting rotary plate (307) and a fixing rotary plate (306) are fixedly connected to the outer side wall of the clamping motor (302).

3. The lifting equipment for the steam-electric dual-drive draught fan is characterized in that the two groups of external threads (305) of the transmission cross rod (301) are the same in thread pitch and opposite in thread pitch.

4. The hoisting equipment for the steam-electric dual-drive draught fan as claimed in claim 1, wherein a groove is formed between the rope winding wheel (206) and the transmission gear, and friction particles are arranged in the groove.

5. The lifting device for the steam-electric dual-drive draught fan is characterized in that a connecting piece is arranged on the outer side wall of the fixed turntable (306), and the connecting piece is located at the top of the fixing piece.

6. The lifting device for the steam-electric dual-drive draught fan as claimed in claim 2, wherein a motor access door is arranged on the outer side wall of the fixing member (3), and observation glass is arranged on the outer side wall of the motor access door.