CN215439329U

CN215439329U - Hoisting accessory is used in thermal power plant's maintenance

Info

Publication number: CN215439329U
Application number: CN202121263950.5U
Authority: CN
Inventors: 周永强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-01-07
Anticipated expiration: 2031-06-07

Abstract

The utility model belongs to the technical field of overhaul lifting, and particularly relates to a lifting device for overhaul of a thermal power plant, which comprises two triangular supports which are symmetrically distributed and used for supporting, wherein clamping claws for lifting are arranged on the bottom surface of a portal frame; the bottom surface of portal frame can be through cooperation gripper jaw to equipment hoist and mount maintenance, and operating personnel can climb to the top of portal frame through end cat ladder, and then makes operating personnel can overhaul the main equipment inside the guardrail, and elevating system and traction cable one of them back of going wrong still have another drive mechanism and support, play dual fail-safe to hoist and mount and go up and down, the effectual stability that improves hoist and mount lift.

Description

Hoisting accessory is used in thermal power plant's maintenance

Technical Field

The utility model belongs to the technical field of overhaul lifting, and particularly relates to a lifting device for overhaul of a thermal power plant.

Background

A thermal power plant, referred to as a thermal power plant, is a plant that produces electric energy using a combustible (e.g., coal) as a fuel. The basic production process is as follows: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hoisting device for overhauling a thermal power plant, which has the characteristics of high stability of hoisting and lifting integrated bidirectional hoisting.

The utility model provides the following technical scheme: including two symmetric distributions be used for the A-frame that supports, the inboard fixedly connected with of A-frame is used for the elevating system who goes up and down, sliding connection has the portal frame that is used for supporting and hoist and mount in the elevating system, the gripper jaw that is used for hoist and mount is installed to the portal frame bottom surface, the top surface fixedly connected with of portal frame is used for the guard fence of protection people, the side fixedly connected with of A-frame is used for the end cat ladder of climbing, the side fixedly connected with of portal frame with end cat ladder relative slip's companion ladder, the equal fixedly connected with in portal frame both sides is used for assisting the traction cable that goes up and down, A-frame internally mounted has and is used for the rolling the coiling motor of traction cable.

The winding device comprises a triangular support, a winding groove, a fixed wheel, a traction cable, a wire passing hole and a winding motor output end, wherein the inclined plane of the triangular support is provided with the winding groove, the fixed wheel is rotatably connected in the winding groove, the bottom surface of the inner wall of the winding groove is provided with the wire passing hole, and the traction cable penetrates through the wire passing hole and is fixedly connected with the output end of the winding motor.

Wherein, elevating system is including supporting registration arm and sliding connection be in support the lifter on registration arm top, the groove of stepping down has been seted up to the bottom surface of lifter, support and install the support driving piece that is used for supporting in the registration arm, support the driving piece and be located the inside in groove of stepping down.

The bottom end of the side surface of the bottom crawling ladder is fixedly connected with the side surface of the triangular support through a fixed bottom rod.

The elevator and the portal frame are fixedly connected through a fixed ejector rod.

The outer wall of the lifting ladder is fixedly connected with a limiting sliding rod, the inner wall of the bottom ladder stand is provided with a limiting sliding groove matched with the limiting sliding rod, and the limiting sliding rod is connected inside the limiting sliding groove in a sliding mode.

The surface of the portal frame is fixedly connected with four reflective strips distributed in a matrix manner.

Wherein, the triangle of A-frame all has arc chamfer.

The utility model has the beneficial effects that:

the triangular support supports the portal frame, the lifting mechanism is used for lifting the portal frame, the bottom surface of the portal frame can lift and overhaul equipment through the matched clamping claws, if large-scale equipment is met, an operator can climb to the top of the portal frame through the bottom ladder stand, the elevator enables the operator to climb to the top of the portal frame after the portal frame is lifted, the operator can overhaul the large-scale equipment in the protective fence, the lifting device can complete the double functions of lifting and descending, the overhauling and lifting requirements are met, meanwhile, the traction cable is wound through the winding roller at the output end of the winding motor, the goal of secondary lifting is achieved for the portal frame, when one of the lifting mechanism and the traction cable goes wrong, the other traction mechanism is still used for supporting, and double insurance is achieved for lifting and descending, the hoisting lifting stability is effectively improved.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

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

FIG. 2 is a schematic side sectional view of the bottom ladder of the present invention;

FIG. 3 is a perspective view of the tripod of the present invention;

fig. 4 is a perspective view of the lifting mechanism of the present invention.

In the figure: 1. a triangular bracket; 11. a bottom ladder stand; 111. a limiting chute; 12. fixing the bottom rod; 13. a wire collecting groove; 14. fixing the wheel; 15. a wire passing hole; 2. a lifting mechanism; 21. supporting the positioning tube; 22. a lifting rod; 23. a yielding groove; 24. supporting the driving member; 3. a gantry; 31. a light-reflecting strip; 32. a guard rail; 33. an elevator; 331. fixing the ejector rod; 332. a limiting slide bar; 34. a traction cable; 4. a winding motor; 5. a gripper jaw.

Detailed Description

Referring to fig. 1-4, the present invention provides the following technical solutions: including two symmetric distributions be used for the A-frame 1 that supports, the inboard fixedly connected with of A-frame 1 is used for the elevating system 2 of lift, sliding connection has portal frame 3 that is used for supporting and hoist and mount on the elevating system 2, the gripper jaw 5 that is used for hoist and mount is installed to portal frame 3 bottom surface, the top surface fixedly connected with of portal frame 3 is used for the guard bar 32 of protection people, the side fixedly connected with of A-frame 1 is used for the end cat ladder 11 of climbing, the side fixedly connected with of portal frame 3 and the lift 33 of end cat ladder 11 relative slip, the equal fixedly connected with in portal frame 3 both sides is used for the haulage cable 34 of supplementary lift, the internally mounted of A-frame 1 has the rolling motor 4 that is used for rolling haulage cable 34.

In this embodiment: the triangular support 1 plays a role in supporting a portal frame 3, the lifting mechanism 2 is used for lifting the portal frame 3, the bottom surface of the portal frame 3 can be used for hoisting and overhauling equipment through the matched clamping claws 5, if large-scale equipment is met, an operator can climb to the top of the portal frame 3 through the bottom ladder stand 11, the elevator 33 enables the operator to climb to the top of the portal frame 3 after the portal frame 3 is lifted, the operator can overhaul the large-scale equipment in the protective fence 32, the hoisting device can complete the double functions of hoisting and lifting, the overhauling and hoisting requirements are met, meanwhile, the traction cable 34 is coiled through the coiling roller at the output end of the coiling motor 4, the goal of secondary hoisting is achieved for the portal frame 3, and when one of the lifting mechanism 2 and the traction cable 34 goes wrong, the other traction mechanism still supports the lifting mechanism, the double insurance is played to hoist and mount and lift, the effectual stability that has improved the hoist and mount lift.

A wire collecting groove 13 is formed in the inclined surface of the triangular support 1, a fixed wheel 14 is rotatably connected in the wire collecting groove 13, a wire passing hole 15 is formed in the bottom surface of the inner wall of the wire collecting groove 13, and a traction cable 34 penetrates through the wire passing hole 15 and is fixedly connected with the output end of the winding motor 4; the wire collecting groove 13 can limit and protect the traction cable 34, the traction cable 34 can be more conveniently turned through the fixed wheel 14, the traction cable 34 can directly enter the triangular support 1 through the wire passing hole 15, and therefore the winding motor 4 is matched for winding, and the space of the whole device in the horizontal direction is reduced.

The lifting mechanism 2 comprises a supporting and positioning tube 21 and a lifting rod 22 connected to the top end of the supporting and positioning tube 21 in a sliding manner, a yielding groove 23 is formed in the bottom surface of the lifting rod 22, a supporting driving piece 24 for supporting is installed in the supporting and positioning tube 21, and the supporting driving piece 24 is located in the yielding groove 23; support registration arm 21 and play the effect that the slip was supported, will support registration arm 21 through supporting driving piece 24 cooperation groove 23 and jack-up, and the groove 23 of stepping down can be accomodate supporting driving piece 24, has avoided the not enough condition in space because of supporting driving piece 24 self length reason and causing.

The bottom end of the side surface of the bottom ladder stand 11 is fixedly connected with the side surface of the triangular support 1 through a fixed bottom rod 12; the bottom end of the side surface of the bottom ladder stand 11 is fixedly connected with the side surface of the triangular support 1 through the fixed bottom rod 12 to form a space abdication, so that an operator can not be affected by the space when holding and treading.

The elevator 33 is fixedly connected with the portal frame 3 through a fixed ejector rod 331; the elevator 33 is fixedly connected with the portal frame 3 through the fixed mandril 331 to form space abdication, so that the operator can not be affected by space when holding and stepping.

The outer wall of the elevator 33 is fixedly connected with a limiting slide bar 332, the inner wall of the bottom ladder 11 is provided with a limiting slide groove 111 matched with the limiting slide bar 332, and the limiting slide bar 332 is slidably connected inside the limiting slide groove 111; the limiting slide rod 332 is matched with the limiting slide groove 111, so that the elevator 33 and the bottom ladder stand 11 are matched with each other to slide, and further the elevator 33 and the bottom ladder stand 11 are connected and slide more tightly.

The surface of the portal frame 3 is fixedly connected with four reflective strips 31 distributed in a matrix manner; the reflective strips 31 can warn surrounding people.

The triangles of the triangular bracket 1 are all provided with arc chamfers; the arc chamfer angle ensures that the triangle of the triangular support 1 can not cause accidental touch damage to people around.

The working principle and the using process of the utility model are as follows: the triangular support 1 plays a role in supporting a portal frame 3, the lifting mechanism 2 is used for lifting the portal frame 3, the bottom surface of the portal frame 3 can be used for hoisting and overhauling equipment through the matched clamping claws 5, if large-scale equipment is met, an operator can climb to the top of the portal frame 3 through the bottom ladder stand 11, the elevator 33 enables the operator to climb to the top of the portal frame 3 after the portal frame 3 is lifted, the operator can overhaul the large-scale equipment in the protective fence 32, the hoisting device can complete the double functions of hoisting and lifting, the overhauling and hoisting requirements are met, meanwhile, the traction cable 34 is coiled through the coiling roller at the output end of the coiling motor 4, the goal of secondary hoisting is achieved for the portal frame 3, and when one of the lifting mechanism 2 and the traction cable 34 goes wrong, the other traction mechanism still supports the lifting mechanism, the double insurance is played to hoist and mount and lift, the effectual stability that has improved the hoist and mount lift.

Claims

1. The utility model provides a hoisting accessory is used in thermal power plant maintenance which characterized in that: including two symmetric distributions be used for the A-frame that supports, the inboard fixedly connected with of A-frame is used for the elevating system who goes up and down, sliding connection has the portal frame that is used for supporting and hoist and mount in the elevating system, the gripper jaw that is used for hoist and mount is installed to the portal frame bottom surface, the top surface fixedly connected with of portal frame is used for the guard fence of protection people, the side fixedly connected with of A-frame is used for the end cat ladder of climbing, the side fixedly connected with of portal frame with end cat ladder relative slip's companion ladder, the equal fixedly connected with in portal frame both sides is used for assisting the traction cable that goes up and down, A-frame internally mounted has and is used for the rolling the coiling motor of traction cable.

2. The hoisting device for thermal power plant overhaul according to claim 1, wherein: the winding device is characterized in that a winding groove is formed in the inclined surface of the triangular support, a fixed wheel is rotatably connected in the winding groove, a line passing hole is formed in the bottom surface of the inner wall of the winding groove, and the traction cable penetrates through the line passing hole and is fixedly connected with the output end of the winding motor.

3. The hoisting device for thermal power plant overhaul according to claim 1, wherein: elevating system including support registration arm and sliding connection support the lifter on registration arm top, the groove of stepping down has been seted up to the bottom surface of lifter, support and install the support driving piece that is used for supporting in the registration arm, support the driving piece and be located the inside in groove of stepping down.

4. The hoisting device for thermal power plant overhaul according to claim 1, wherein: the bottom end of the side surface of the bottom ladder stand is fixedly connected with the side surface of the triangular support through a fixed bottom rod.

5. The hoisting device for thermal power plant overhaul according to claim 1, wherein: the elevator and the portal frame are fixedly connected through a fixed ejector rod.

6. The hoisting device for thermal power plant overhaul according to claim 1, wherein: the outer wall fixedly connected with spacing slide bar of companion ladder, the inner wall of end cat ladder set up with spacing slide bar assorted spacing spout, spacing slide bar sliding connection be in the inside of spacing spout.

7. The hoisting device for thermal power plant overhaul according to claim 1, wherein: the surface of the portal frame is fixedly connected with four reflective strips distributed in a matrix manner.

8. The hoisting device for thermal power plant overhaul according to claim 1, wherein: the triangle of the triangular support is provided with an arc chamfer.