Oil-free suction pasting type sealing device

Abstract

The utility model relates to the technical field of trolley sealing, in particular to an oil-free suction pasting type sealing device. Comprising a trolley, mounting grooves are symmetrically formed in the two sides of the bottom of the trolley, trolley sealing mechanisms are arranged in the mounting grooves, slideway sealing mechanisms are arranged at the bottoms of the trolley sealing mechanisms and comprise brackets, upper base plates, pressing plates and sealing belts, the upper base plates are arranged at the tops of the brackets, and the sealing belts comprise inclined parts, vertical parts and horizontal parts; the two ends of the vertical part are fixedly connected with the inclined part and the horizontal part through the corresponding edges respectively. The sealing belt made of rubber is adopted, automatic adjustment can be achieved according to the deviation condition of the trolley, and the problem that in the prior art, a metal sliding way is prone to deviation is solved. The sealing tape can be automatically attached to the bottom of the U-shaped shell by utilizing the negative pressure state of the bottom of the trolley during working and combining with the rubber sealing tape, air leakage is prevented, and compared with a traditional sealing mode, the air leakage rate is low, and the equipment cost and the daily loss of lubricating oil are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley sealing, in particular to an oil-free suction and sticking type sealing device. Background Art

[0002] In the smelting processes of sintering machines and roasting machines in the metallurgical industry, the traditional way of sealing sintering machines and roasting machines is to use fixed slideways or elastic slideways to match with trolley seals to ensure the sealing performance of smelting equipment, so as to ensure the normal production of the equipment.

[0003] In order to ensure the tightness and smoothness of the metal slideway and trolley seal, a large amount of lubricating oil needs to be used on the slideway in the traditional sealing form, and a separate centralized oil supply system needs to be equipped. The oil supply system consists of an intelligent controller, an oil storage device, a guide oil pipe, a distributor, an oil supply nozzle, etc. The installation is cumbersome, prone to failures, and the equipment itself is expensive. The long-term use of a large amount of lubricating oil results in a large daily consumption cost. At the same time, the solid waste generated by the lubricating oil at high temperature is sucked into the backend electrostatic precipitator and bag filter by high-pressure air through the air box, which will shorten the dust collection effect and service life of the dust collector. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an oil-free suction and sticking type sealing device that does not require the use of lubricating oil and cancels the centralized lubrication system.

[0005] To achieve the above technical purpose, the utility model proposes the following technical solution: an oil-free suction and sticking type sealing device, including a trolley, installation grooves are symmetrically opened on both sides of the bottom of the trolley, trolley sealing mechanisms are arranged in the installation grooves, a slideway sealing mechanism is arranged at the bottom of the trolley sealing mechanism, the slideway sealing mechanism includes a bracket, an upper substrate, a pressing plate and a sealing belt, the upper substrate is arranged on the top of the bracket, the sealing belt includes an inclined part, a vertical part and a horizontal part, both ends of the vertical part are fixedly connected to the inclined part and the horizontal part respectively through corresponding edges, the inclined part, the vertical part and the horizontal part are all made of rubber material, first sealing cloths are arranged on the outer sides of the inclined part and the vertical part, a limiting groove adapted to the horizontal part is opened at one end of the bottom of the pressing plate, the horizontal part and the pressing plate are both arranged above the upper substrate, and the horizontal part is arranged in the limiting groove, and the upper substrate and the pressing plate are connected through fixing bolts.

[0006] Further, a limiting plate is arranged on the bracket and on the side close to the vertical part.

[0007] Further, the inclined part, the vertical part and the horizontal part are all made of heat-resistant colloidal material and are of an integrally formed structure, and a second sealing cloth is vulcanized in the sealing belt.

[0008] Further, a heat insulation cushion plate is arranged between the upper substrate and the pressing plate.

[0009] Furthermore, the trolley sealing mechanism includes a buffer bottom plate, a fixing plate, and a U-shaped housing. The buffer bottom plate and the fixing plate are connected to the installation groove through installation bolts. The fixing plate is arranged inside the U-shaped housing, and end plates are provided at both ends of the fixing plate. One side of the end plate abuts against the outer wall of the U-shaped housing.

[0010] Furthermore, L-shaped buffer pads are arranged between both ends of the fixing plate and the end plates, and the end plates and the L-shaped buffer pads are connected to the fixing plate through limit bolts.

[0011] Compared with the prior art, the beneficial effects produced by the present utility model are as follows: The structure of the present utility model is novel, ingeniously conceived, and simple and convenient to operate. Compared with the prior art, it has the following advantages: By adopting a sealing belt made of rubber material, the flexibility of rubber is utilized to automatically adjust according to the deviation of the trolley, solving the problem of easy deviation of the metal slideway in the prior art; Utilizing the negative pressure state at the bottom of the trolley during operation and combining with the rubber sealing belt can realize that the sealing belt automatically adheres to the bottom of the U-shaped housing, preventing air leakage. Compared with the traditional sealing method using lubricating oil, not only the sealing effect is better than other methods, and the air leakage rate is lower, but also the equipment cost and the daily loss of lubricating oil are saved; Through the combined use of the structure of the sealing belt, the pressing plate, the limiting groove, and the fixing bolts, etc., the sealing belt can be conveniently replaced. Description of the Drawings

[0012] Figure 1 is the overall structure schematic diagram of the present utility model;

[0013] Figure 2 is the structure schematic diagram of the trolley sealing mechanism and the slideway sealing mechanism of the present utility model;

[0014] Figure 3 is the side structure schematic diagram of the trolley sealing mechanism and the slideway sealing mechanism of the present utility model;

[0015] Figure 4 is the disassembled structure schematic diagram of the slideway sealing mechanism of the present utility model;

[0016] Figure 5 is the side structure schematic diagram of the sealing belt of the present utility model;

[0017] Figure 6 is the structure schematic diagram of the trolley sealing mechanism of the present utility model;

[0018] Figure 7 is the disassembled structure schematic diagram of the trolley sealing mechanism of the present utility model.

[0019] In the figure, 1 is a trolley; 2 is a mounting groove; 3 is a trolley sealing mechanism; 4 is a slideway sealing mechanism; 5 is a bracket; 6 is an upper base plate; 7 is a limiting plate; 8 is a pressing plate; 9 is a sealing strip; 10 is an inclined part; 11 is a vertical part; 12 is a horizontal part; 13 is a first sealing cloth; 14 is a limiting groove; 15 is a fixing bolt; 16 is a second sealing cloth; 17 is a heat insulation cushion plate; 18 is a buffer bottom plate; 19 is a fixing plate; 20 is a U-shaped housing; 21 is a mounting bolt; 22 is an end plate; 23 is an L-shaped buffer pad; 24 is a limiting bolt. Detailed implementation manners

[0020] The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0021] As Figures 1-7 shown, the present invention provides an oil-free suction and paste type sealing device, including a trolley 1. Mounting grooves 2 are symmetrically opened on both sides of the bottom of the trolley 1. Trolley sealing mechanisms 3 are arranged in the mounting grooves 2. The trolley sealing mechanisms 3 on both sides of the bottom of the trolley 1 are mirror-symmetrical. A slideway sealing mechanism 4 is arranged at the bottom of the trolley sealing mechanism 3. The slideway sealing mechanism 4 includes a bracket 5, an upper base plate 6, a limiting plate 7, a pressing plate 8 and a sealing strip 9. The upper base plate 6 is arranged on the top of the bracket 5. The limiting plate 7 is fixedly arranged on the bracket 5 and is located on the side close to the vertical part. The sealing strip 9 includes an inclined part 10, a vertical part 11 and a horizontal part 12. Both ends of the vertical part 11 are fixedly connected to the downwardly inclined end of the inclined part 10 and one end of the horizontal part 12 through corresponding edges respectively. The inclined part 10, the vertical part 11 and the horizontal part 12 are all made of rubber. First sealing cloths 13 are arranged on the outer sides of the inclined part 10 and the vertical part 11. A limiting groove 14 adapted to the horizontal part is opened at one end of the bottom of the pressing plate 8. The horizontal part 12 and the pressing plate are both arranged above the upper base plate 6, and the horizontal part 11 is arranged in the limiting groove 14. The upper base plate 6 and the pressing plate 8 are connected by fixing bolts 15.

[0022] As Figures 1-5As shown, in this embodiment, a wind box is provided at the bottom of the trolley 1. During operation, the space at the bottom of the trolley 1 is in a negative pressure state under the action of the wind box. The inclined portion 10, the vertical portion 11, and the horizontal portion 12 form a structure with an opening at one end and a sealed end, and the overall structure is similar to an ∠ shape. The open end of the sealing belt 9 is arranged outward. The designed height of the sealing belt 9 can be designed according to the height difference between the original trolley 1 and the wind box, making full use of this space height. Without modifying the basic structures on both sides of the wind box, the transformation and installation process of this sealing structure can be achieved; the sealing belt 9 is fixed above the upper base plate 6 through the limiting groove 14 and under the action of the fixing bolt 15. Both the fixing bolt 15 and the pressing plate 8 are at the open end of the sealing belt 9. Therefore, by screwing the fixing bolt 15 and removing the pressing plate 8, the sealing belt 9 can be easily disassembled, providing convenience for replacing the sealing belt 9 in the later stage; the limiting plate 7 is used to limit the sealing belt 9 to prevent the sealing belt 9 from undergoing horizontal displacement, and at the same time, the limiting plate 7 also plays a role in preventing air leakage; the sealing belt 9 is made of a rubber material with high temperature resistance, wear resistance, and certain flexibility. Since the number of each sintering machine trolley ranges from dozens to more than one hundred, during operation, the trolley will deviate in the middle and rear parts. The traditional metal slideway is either fixed or elastic, and both are fixed in a straight line and cannot be adjusted according to the deviation of the trolley. Compared with the traditional metal slideway, the sealing belt 9 is made of rubber material and has flexibility, and can make its own adjustment according to the deviation. At the same time, the production length of each sealing belt 9 can reach dozens of meters or more than one hundred meters, and there can be no live joints in the overall length. When a local damage occurs and needs to be replaced, local cutting and local replacement are carried out, and the interface is firmly pasted with special glue; the first sealing cloth 13 can be vulcanized to the outer surface layers of the inclined portion 10 and the vertical portion 11 through the vulcanization process, which can prevent the sealing belt 9 from being torn and at the same time improve the service life of the sealing belt 9; when the trolley 1 is running and the wind box is working, the top surface of the inclined portion 10 is adsorbed to the bottom of the trolley sealing mechanism 3 under the negative pressure state at the bottom of the trolley 1, so that the first sealing cloth 13 is closely adsorbed to the bottom of the trolley sealing mechanism 3, effectively preventing air leakage.

[0023] The inclined portion 10, the vertical portion 11, and the horizontal portion 12 are integrally formed structures, and a second sealing cloth 16 is vulcanized in the sealing belt 9.

[0024] As Figure 5 shown, the inclined portion 10, the vertical portion 11, and the horizontal portion 12 are an integral structure, and its structure is more stable and durable. The second sealing cloth 16 reduces the possibility of the sealing belt 9 being anti-torn during use.

[0025] An insulating cushion plate 17 is provided between the upper base plate 6 and the pressing plate 8.

[0026] As Figure 3 and 4As shown, the heat-insulating backing plate 17 can isolate heat, preventing the heat of the upper substrate 6 from being transferred to the sealing strip 9, which may cause the bottom of the sealing strip 9 to soften and result in poor fixing effect.

[0027] The trolley sealing mechanism 3 includes a buffer bottom plate 18, a fixing plate 19, and a U-shaped housing 20 with an upward opening. The buffer bottom plate 18 and the fixing plate 19 are connected to the installation groove 2 through installation bolts 21. The fixing plate 19 is arranged inside the U-shaped housing 20, and end plates 22 are provided at both ends of the fixing plate 19. One side of the end plate 22 abuts against the outer wall of the U-shaped housing 20, and the top of the end plate 22 abuts against the bottom of the buffer bottom plate 18. Under the action of the end plates 22 at both ends of the fixing plate 19, the U-shaped housing 20 is prevented from detaching from the fixing plate 19. The U-shaped housing 20 is located above the inclined part 10, and the inclined end on the inclined part 10 is in contact with the bottom of the U-shaped housing 20. When the trolley is not running, the bottom of the U-shaped housing 20 is in contact with the upper inclined end of the inclined part 10. When the trolley is running, under the action of negative pressure adsorption, the inclined part 10 automatically fits tightly with the bottom of the U-shaped housing 20. The U-shaped housing 20 can be made of stainless steel material to reduce the friction coefficient between the bottom of the U-shaped housing 20 and the inclined part 10 and increase the service life of the inclined part 10.

[0028] As Figure 6 and 7 shown, by using the U-shaped housing 20 and the fixing plate 19 in cooperation, air leakage on both sides can be prevented. By installing end plates 22 at both ends of the fixing plate 19, the purpose of sealing the ends of the trolley sealing mechanism 3 is achieved, improving the overall sealing performance. When the trolley is running, under the action of the installation bolts 21, the buffer bottom plate 18 and the fixing plate 19 are driven to move with the trolley. Since the end plates 22 are located on both sides of the U-shaped housing and the end plates are connected to the fixing plate 19, the end plates 22 will push the U-shaped housing 20 to move with the trolley.

[0029] An L-shaped buffer pad 23 is arranged between both ends of the fixing plate 19 and the end plates 22. The end plates 22 and the L-shaped buffer pad 23 are connected to the fixing plate 19 through limit bolts 24.

[0030] As Figure 7 shown, the two side surfaces of the vertical part of the L-shaped buffer pad 23 are respectively in contact with the end of the fixing plate 19 and the end plate 22, and then fixed through the installation bolts 21. The bottoms of both ends of the fixing plate 19 fall on the horizontal part of the L-shaped buffer pad 23. When the trolley 1 jolts, it can prevent the bottom of the fixing plate 19 from coming into hard contact with the U-shaped housing 20, resulting in damage to the U-shaped housing 20 and the fixing plate 19 and affecting the use. During the operation of the trolley, the U-shaped housing 20 can move with the trolley under the drive of the end plates 22. Therefore, by adding the L-shaped buffer pad 23 between the end plates 22 and the fixing plate 19, the vertical part of the L-shaped buffer pad 23 can play a buffering and sealing role.

[0031] Principle of use: When installing the trolley sealing mechanism 3, the buffer bottom plate 18 and the fixing plate 19 are installed in the installation groove 2 at the bottom of the trolley 1 through the installation bolts 21, and the U-shaped housing 20 is placed at the bottom of the fixing plate 19. The L-shaped buffer pad 23 and the end plate 22 fix the U-shaped housing 20 to the bottom of the fixing plate 19 through the limit bolts 24. On the one hand, it is convenient for disassembly work, and on the other hand, it can improve the end sealing effect; the fixing plate 19 is inside the U-shaped housing 20, which can prevent air leakage from the side, and the end plate 22 can prevent air leakage from the end;

[0032] When installing the slideway sealing mechanism 4, the heat insulation pad 17 is placed on the upper substrate 6 at the top of the bracket 2, and the sealing belt 9 and the pressing plate 8 are placed on the top of the heat insulation pad 17, so that the horizontal part 12 of the sealing belt 9 is in the limit groove 14 of the pressing plate 8, and the upper substrate 6, the heat insulation pad 17 and the pressing plate 8 are fixed through the fixing bolts 15; when the utility model is in use, the space at the bottom of the trolley 1 is in a negative pressure state under the action of the air box, and the inclined part 10 of the sealing belt 9 will be automatically attached to the bottom of the U-shaped housing 20, thus achieving the effect of automatic sealing.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. An oil-free suction-type sealing device, comprising a trolley (1), with mounting grooves (2) symmetrically provided on both sides of the bottom of the trolley (1), characterized in that: A trolley sealing mechanism (3) is provided in each installation groove (2); a slideway sealing mechanism (4) is provided at the bottom of the trolley sealing mechanism (3); the slideway sealing mechanism (4) comprises a bracket (5), an upper base plate (6), a pressure plate (8) and a sealing belt (9); the upper base plate (6) is arranged on the top of the bracket (5); the sealing belt (9) comprises an inclined portion (10), a vertical portion (11) and a horizontal portion (12); the two ends of the vertical portion (11) are respectively connected to the inclined portion (10) and the horizontal portion (12) through corresponding edges. The inclined portion (10), the vertical portion (11) and the horizontal portion (12) are all made of rubber. The outer sides of the inclined portion (10) and the vertical portion (11) are provided with a first sealing cloth (13). A limiting groove (14) matching the horizontal portion is opened at one end of the bottom of the pressing plate (8). The horizontal portion (12) and the pressing plate are both arranged above the upper base plate (6), and the horizontal portion (12) is arranged in the limiting groove (14). The upper base plate (6) and the pressing plate (8) are connected by fixing bolts (15).

2. The oil-free suction sealing device according to claim 1, characterized in that: A limiting plate (7) is provided on the bracket (5) and on a side close to the vertical portion (11).

3. The oil-free suction sealing device according to claim 1, characterized in that: The inclined portion (10), the vertical portion (11) and the horizontal portion (12) are an integrally formed structure, and a second sealing cloth (16) is vulcanized inside the sealing belt (9).

4. The oil-free suction sealing device according to claim 1, characterized in that: A heat insulating pad (17) is provided between the upper base plate (6) and the pressing plate (8).

5. The oil-free suction sealing device according to claim 1, characterized in that: The trolley sealing mechanism (3) comprises a buffer bottom plate (18), a fixing plate (19) and a U-shaped shell (20); the buffer bottom plate (18) and the fixing plate (19) are connected to the mounting groove (2) via mounting bolts (21); the fixing plate (19) is arranged in the U-shaped shell (20); and end plates (22) are arranged at both ends of the fixing plate (19); one side of the end plate (22) contacts the outer wall of the U-shaped shell (20).

6. The oil-free suction sealing device according to claim 5, characterized in that: L-shaped buffer pads (23) are provided between the two ends of the fixing plate (19) and the end plate (22), and the end plate (22) and the L-shaped buffer pad (23) are connected to the fixing plate (19) via limiting bolts (24).

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