CN111717821B

CN111717821B - Furnace cover hoisting device of annealing furnace

Info

Publication number: CN111717821B
Application number: CN202010723978.6A
Authority: CN
Inventors: 林乾来; 陈光赢; 曹昌华; 袁旭欧
Original assignee: Shanghai Hongting Fastener Manufacturing Co ltd
Current assignee: Shanghai Hongting Fastener Manufacturing Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-10-22
Anticipated expiration: 2040-07-24
Also published as: CN111717821A

Abstract

The utility model relates to a bell hoisting accessory of annealing stove, be provided with driving motor in the mounting bracket, one side of driving motor is provided with the coiling mechanism, be provided with the traction block on the coiling mechanism, one side that the traction block is back to the coiling mechanism is provided with first chain, the one end that the traction block was kept away from to the mounting bracket is rotated and is provided with the first gear with first chain complex, the one end that the traction block was kept away from after first gear is walked around to first chain is connected with the bell, the both sides that lie in driving motor in the mounting bracket are provided with second gear and third gear relatively, be provided with the second chain on the second gear, be provided with the third chain on the third gear, the one end that the bell was kept away from to second chain and third chain all is provided with the haulage rope, the one end that keeps away from second chain and third chain in the mounting bracket is provided with the switching-over piece, the haulage rope is connected with the traction block after walking around the switching-over piece, the coiling mechanism drives first chain through the traction block simultaneously, The second chain and the third chain move to lift or lower the furnace cover.

Description

Furnace cover hoisting device of annealing furnace

Technical Field

The application relates to the technical field of hoisting devices, in particular to a furnace cover hoisting device of an annealing furnace.

Background

Annealing is a heat treatment process for metals, which refers to slowly heating the metal to a certain temperature, holding for a sufficient time, and then rapidly cooling at a suitable rate in order to reduce hardness and improve the shape of the machined metal. Annealing is usually carried out in annealing furnaces comprising furnace covers, which are often heavy and difficult to move manually.

In the prior art, in a chinese patent document with an authorization publication number of CN202099326U, a lifting rope connection structure for an annealing furnace lid is described, which includes a lifting rope and a furnace lid, wherein one end of the lifting rope is a connection end of a lifting device, the other end of the lifting rope is a connection end of the furnace lid, a distribution ring is disposed at the connection end of the furnace lid of the lifting device, at least three lifting rings are distributed on the upper surface of the furnace lid, and are circumferentially distributed on the furnace lid, and a distribution connection rope is disposed between the distribution ring and each lifting ring. The utility model discloses the annealing stove bell lifts by crane rope connection structure, because it distributes to be the circumference on the bell to play rings again, uses through the cooperation of distribution ring, play rings and branch connecting cable, can distribute whole furnace lid with lifting force to reach good balanced effect, realize that the bell is balanced to lift by crane. The lifting operation mode has higher safety factor, not only ensures personal safety, but also ensures equipment safety.

The existing design scheme has the following defects, and the hoisting device is connected with the furnace cover end by only one hoisting rope, so that the furnace cover is easy to shake in the ascending or falling process, and the furnace cover cannot be accurately covered on the annealing furnace due to the shaking in the falling process, thereby influencing the annealing effect of the annealing furnace.

Disclosure of Invention

To the not enough of prior art existence, this application purpose aims at providing a bell hoisting accessory of annealing stove, and it has prevents that the bell from rocking and leading to the bell to close inaccurate effect in the in-process that lifts by crane or fall.

The above object of the present application is achieved by the following technical solutions:

a furnace cover lifting device of an annealing furnace comprises a lifting mechanism, wherein the lifting mechanism comprises a mounting frame fixedly arranged on one side of a furnace cover, a driving motor is arranged in the mounting frame, a winding device is arranged on one side of the driving motor, a traction block is arranged on the winding device, a first chain is arranged on one side of the traction block, which is back to the winding device, a first gear matched with the first chain is rotatably arranged at one end of the mounting frame, which is far away from the traction block, after the first chain bypasses the first gear, the end of the mounting frame, which is far away from the traction block, is connected with the furnace cover, a second gear and a third gear are oppositely arranged on two sides of the driving motor in the mounting frame, a second chain is arranged on the second gear, a third chain is arranged on the third gear, traction ropes are arranged at one ends of the second chain and the third chain, which are far away from the furnace cover, and a reversing piece is arranged at one end of the mounting frame, which is far away from the second chain and the third chain, the traction rope is connected with the traction block after bypassing the reversing piece, and the winding device drives the first chain, the second chain and the third chain to move through the traction block so as to hoist or put down the furnace cover.

Through adopting above-mentioned technical scheme, set up first chain, second chain and third chain in the mounting bracket, and the contact point of first chain, second chain and third chain and bell is three contact point to have stability, make the bell rise or the in-process that falls more stable, avoid appearing the bell lid and close inaccurate condition.

The present application may be further configured in a preferred example to: the reversing piece comprises a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft rotate along with the movement of the traction rope.

Through adopting above-mentioned technical scheme, first pivot and second pivot back removal are walked around respectively to the both ends of haulage rope, and first pivot and second pivot can rotate along with the rotation of haulage rope to make the sliding friction power between haulage rope and the pivot become rolling friction power, reduced the wearing and tearing speed of haulage rope.

The present application may be further configured in a preferred example to: the surface of the first rotating shaft is provided with a first groove along the circumferential direction of the first rotating shaft, the surface of the second rotating shaft is provided with a second groove along the circumferential direction of the second rotating shaft, and two ends of the traction rope are respectively positioned in the first groove and the second groove and move along the first groove and the second groove.

Through adopting above-mentioned technical scheme, the both ends of haulage rope are located first recess and second recess respectively, can prevent that the both ends of haulage rope from sliding along the vertical direction of first pivot and second pivot and influencing the traction effect.

The present application may be further configured in a preferred example to: the mounting bracket is internally provided with a first spacing column for limiting at a position of the first chain in a relatively fixed manner, a second spacing column for limiting at a position of the second chain in a relatively fixed manner, and a third spacing column for limiting at a position of the third chain in a relatively fixed manner.

Through adopting above-mentioned technical scheme, set up first spacing post in the both sides of first chain, set up the spacing post of second in the both sides of second chain, set up the spacing post of third in the both sides of third chain, first chain removes along first spacing post, the spacing strip of second removes along the spacing post of second, the third chain removes along the spacing post of third, thereby make first chain, second chain and third chain obtain the in-process at the removal all more stable, further prevent that the condition that the chain from appearing rocking.

The present application may be further configured in a preferred example to: the first limiting column is sleeved with a first sleeve, and the first sleeve is in rolling contact with the first chain.

Through adopting above-mentioned technical scheme, change sliding friction on the first chain into rolling friction, reduced the degree of wear of first chain, make first chain remove more smoothly, high-efficient.

The present application may be further configured in a preferred example to: and a second sleeve is sleeved on the second limiting column and is in rolling contact with the second chain.

Through adopting above-mentioned technical scheme, change sliding friction on the second chain into rolling friction, reduced the degree of wear of second chain, make the second chain remove more smoothly, high-efficient.

The present application may be further configured in a preferred example to: and a third sleeve is sleeved on the third limiting column, and the third chain is in rolling contact with the third sleeve.

Through adopting above-mentioned technical scheme, change sliding friction on the third chain into rolling friction, reduced the degree of wear of third chain, make the third chain remove more smoothly, high-efficient.

The present application may be further configured in a preferred example to: the first chain is connected with the furnace cover through a first connecting point, the second chain is connected with the furnace cover through a second connecting point, the third chain is connected with the furnace cover through a third connecting point, and the shape formed by connecting the first connecting point, the second connecting point and the third connecting point is an isosceles triangle.

By adopting the technical scheme, the shape formed by connecting the three connecting points is an isosceles triangle, so that the furnace cover has better stability, the furnace cover cannot shake in the process of being lifted or descending, and the stability and the safety are better.

In summary, the present application includes at least one of the following beneficial technical effects:

1. set up first chain, second chain and third chain in the mounting bracket, and the tie point of first chain, second chain and third chain and bell is located isosceles triangle's three summit respectively to have stability, make the bell rise or the in-process that falls more stable, avoid appearing the bell lid and close inaccurate condition.

Drawings

FIG. 1 is a schematic structural view of a furnace cover lifting device of an annealing furnace according to an embodiment of the present application, which is mounted on one side of the annealing furnace;

FIG. 2 is a schematic view showing a furnace lid lifting device and a furnace lid of an annealing furnace according to an embodiment of the present application, for showing the composition and configuration of a lifting mechanism on a cross frame;

fig. 3 is an enlarged view of a portion a of fig. 2.

Reference numerals: 1. a hoisting mechanism; 11. a mounting frame; 111. a cross frame; 112. erecting; 13. a winding device; 131. winding the roll; 132. winding the rope; 133. a traction block; 134. a hauling rope; 14. a first chain; 15. a first limit post; 151. a first sleeve; 16. a first connecting rod; 17. a first gear; 18. a first rotating shaft; 19. a second rotating shaft; 2. a furnace cover; 21. a second chain; 22. a third chain; 23. a second gear; 24. a third gear; 25. a second limit post; 26. a third limiting column; 27. a second sleeve; 28. a third sleeve; 3. a drive motor; 4. a furnace body; 5. a first through hole; 6. a second connecting rod; 7. a second through hole; 8. a third via.

Detailed Description

The present application is described in further detail below with reference to the attached drawing figures.

Example (b):

referring to fig. 1, for the furnace cover lifting device of the annealing furnace disclosed in the present application, the lifting device comprises a lifting mechanism 1 and a mounting frame 11 welded on one side of a furnace cover 2, wherein the mounting frame 11 is integrally L-shaped and comprises a cross frame 111 and a vertical frame 112 which are integrally formed. The vertical frame 112 plays a role of supporting and suspending, and the hoisting mechanism 1 is arranged on the horizontal frame 111.

Referring to fig. 1, the annealing furnace includes a furnace body 4 and a furnace cover 2 covering the furnace body 4, and the furnace cover 2 is a circular cover.

With reference to fig. 1 and 2, the lifting mechanism 1 includes a driving motor 3, the driving motor 3 is fixedly welded and installed inside the cross frame 111, one side of the driving motor 3 is provided with a winding device 13, the winding device 13 includes a winding drum 131 and a winding rope 132 wound on the winding drum 131, and a motor shaft of the driving motor 3 is coaxially fixed with the winding drum 131.

Referring to fig. 2 and 3, a traction block 133 is fixedly disposed at an end of the winding rope 132 away from the winding drum 131, and the traction block 133 is in a square block shape. One side welding that the take-up device 13 was backed to the traction block 133 has first chain 14, the relative welding in both sides of first chain 14 has six first spacing posts 15, the surface of first spacing post 15 perpendicular to crossbearer 111, and two liang of relative settings of six first spacing posts 15, the cover is equipped with first sleeve 151 on the first spacing post 15, first sleeve 151 rotates the cover through the bearing and locates on first spacing post 15, and can free rotation on first spacing post 15, first chain 14 be located between two relative first spacing posts 15 and with first sleeve 151 rolling contact between the surface.

Referring to fig. 2 and 3, a first connecting rod 16 is welded at one end of the cross frame 111, a first gear 17 engaged with a chain hole of the first chain 14 is rotatably disposed on the first connecting rod 16, a first through hole 5 is disposed on the bottom surface of the mounting frame 11, one end of the first chain 14 passes through the first through hole 5 after bypassing the first gear 17, extends to the outside of the cross frame 111, and is hinged and fixed with the furnace cover 2 through a hinge at one end passing through the first through hole 5.

Referring to fig. 2 and 3, two pulling ropes 134 are hinged to the pulling block 133 at one side of the first chain 14, and the pulling ropes 134 are arranged in mirror symmetry with respect to the first chain 14. The relative welding in the mounting bracket 11 is located the both sides of first spacing post 15 has first pivot 18 and second pivot 19, and first pivot 18 and second pivot 19 all rotate with crossbearer 111 and are connected. The surface of first pivot 18 has seted up annular first recess along its circumference, and the surface of second pivot 19 has seted up annular second recess along its circumference, and two haulage ropes 134 walk around the first recess on first pivot 18 and the second recess on the second pivot 19 respectively, and the one end of just walking around all extends to the direction at driving motor 3 place, and haulage rope 134 can move on the tangential direction of first pivot 18 and second pivot 19.

Referring to fig. 2 and 3, the pulling rope 134 is fixedly connected to the second chain 21 and the third chain 22 by hinges around one ends of the first rotating shaft 18 and the second rotating shaft 19. The one end welding that the mounting bracket 11 kept away from first gear 17 has second connecting rod 6, relative rotation is provided with second gear 23 and third gear 24 on the second connecting rod 6, second through-hole 7 and third through-hole 8 have been seted up to the bottom surface of mounting bracket 11, and second through-hole 7 and bell 2 vertical welding are worn out again after second gear 23 is walked around to second chain 21, and third through-hole 8 and bell 2 vertical welding are worn out again after third gear 24 to third chain 22.

With reference to fig. 2 and 3, a second limiting column 25 for limiting is welded in the mounting frame 11 at the position of the second chain 21, and a third limiting column 26 for limiting is welded in the mounting frame 11 at the position of the third chain 22. The second sleeve 27 is sleeved on the second limiting column 25, the third sleeve 28 is sleeved on the third limiting column 26, the second chain 21 is in rolling contact with the second sleeve 27, and the third chain 22 is in rolling contact with the third sleeve 28.

Referring to fig. 2 and 3, the driving motor 3 is operated to drive the winding drum 131 to rotate to wind and unwind the winding rope 132, and the winding device 13 drives the first chain 14, the second chain 21 and the third chain 22 to move through the traction block 133 and the traction rope 134 so as to lift or lower the furnace cover 2.

The implementation principle of the embodiment of the application is as follows: the driving motor 3 is started, the driving motor 3 drives the winding drum 131 to rotate, and the winding drum 131 winds up the winding rope 132, so as to drive the traction block 133 and the traction rope 134 to move towards the direction close to the winding drum 131 along the horizontal direction. At this time, the first chain 14, the second chain 21, and the third chain 22 all move to one end close to the drawing block 133 at the same time, and the furnace cover 2 is lifted up as the first chain 14, the second chain 21, and the third chain 22 rise.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a bell hoisting accessory of annealing stove, includes hoisting accessory (1), its characterized in that: the lifting mechanism (1) comprises a mounting frame (11) fixedly arranged on one side of the furnace cover (2), a driving motor (3) is arranged in the mounting frame (11), a winding device (13) is arranged on one side of the driving motor (3), a traction block (133) is arranged on the winding device (13), a first chain (14) is arranged on one side, back to the winding device (13), of the traction block (133), a first gear (17) matched with the first chain (14) is rotatably arranged at one end, far away from the traction block (133), of the mounting frame (11), one end, far away from the traction block (133), of the first chain (14) is connected with the furnace cover (2) after bypassing the first gear (17), a second gear (23) and a third gear (24) are oppositely arranged on two sides, located on the driving motor (3), of the mounting frame (11), and a second chain (21) is arranged on the second gear (23), the furnace cover is characterized in that a third chain (22) is arranged on the third gear (24), one ends, far away from the furnace cover (2), of the second chain (21) and the third chain (22) are respectively provided with a traction rope (134), one ends, far away from the second chain (21) and the third chain (22), of the second chain and the third chain (22) in the mounting frame (11) are provided with a reversing piece, the traction rope (134) is connected with a traction block (133) after bypassing the reversing piece, the winding device (13) simultaneously drives the first chain (14), the second chain (21) and the third chain (22) to move so as to lift or put down the furnace cover (2) through the traction block (133), a first limiting column (15) for limiting is fixedly arranged at the position of the first chain (14) in the mounting frame (11), and a second limiting column (25) for limiting is fixedly arranged at the position of the second chain (21) in the mounting frame (11), a third limiting column (26) for limiting is fixedly arranged at a position, located on a third chain (22), in the mounting frame (11) relatively, the reversing piece comprises a first rotating shaft (18) and a second rotating shaft (19), the first rotating shaft (18) and the second rotating shaft (19) rotate along with the movement of the traction rope (134), a first groove is formed in the surface of the first rotating shaft (18) along the circumferential direction of the first rotating shaft, a second groove is formed in the surface of the second rotating shaft (19) along the circumferential direction of the second rotating shaft, two ends of the traction rope (134) are respectively located in the first groove and the second groove and move along the first groove and the second groove, a first sleeve (151) is rotatably sleeved on the first limiting column (15), the first sleeve (151) is in rolling contact with the first chain (14), a second sleeve (27) is sleeved on the second limiting column (25), and the second sleeve (27) is in rolling contact with the second chain (21), the cover is equipped with third sleeve (28) on spacing post of third (26), third chain (22) and third sleeve (28) rolling contact, first chain (14) are first tie point with the bell tie point, second chain (21) are the second tie point with the bell tie point, third chain (22) are the third tie point with the bell tie point, the shape that first tie point, second tie point and third tie point line formed is isosceles triangle.