Oil-free slideway sealing device of sintering machine

Abstract

The utility model discloses a sintering machine oil-free slide way sealing device which comprises an upper slide way and a lower slide way corresponding to the upper slide way, a non-metal flexible composite sealing plate is fixed on the lower slide way, and the lower slide way is in contact fit with the upper slide way through the non-metal flexible composite sealing plate. The middle part of the lower end of the upper slideway is a sealing surface formed by transiting a concave arc surface to two ends to planes; the sealing surface of the upper slide way is in contact with the non-metal flexible composite sealing plate on the lower slide way, so that the non-metal flexible composite sealing plate is bent and deformed under the action of downward pressure and then forms matched sealing with the concave arc surface of the upper slide way. Therefore, when the concave arc sealing surface of the upper slide way acts on the non-metal flexible composite sealing plate, the non-metal flexible composite sealing plate is pressed and deformed to form matched sealing. Not only is the sealing surface enlarged, but also the working condition of transverse offset of the trolley can be met by utilizing the sealing self-compensation function of the elasticity of the non-metal flexible composite sealing plate.

Description

Technical Field

[0001] This utility model relates to the field of sintering machine technology, and in particular to an oil-free slide sealing device for sintering machines. Background Technology

[0002] Currently, there are many types of slide sealing devices used on sintering machine trolleys, mainly divided into metal seals and non-metal seals according to the sealing method. Since non-metal seals require no lubrication, they save users a significant amount of lubricating oil and lubrication equipment, gaining user approval. However, with the development of the sintering industry, new problems have arisen during user operation, particularly concerning the metal upper slide rail mentioned in this new patent, which is installed in grooves on both sides of the trolley's bottom. The non-metallic flexible lower slide rail sealing strip is installed obliquely on a mounting base on the slide rail support beam at the bottom of the trolley. The non-metallic flexible sealing strip is a consumable part. A triangular air leakage area exists between the metal upper slide rail, the non-metallic flexible sealing strip, and the base. Under the negative pressure exhaust conditions of sintering, this triangular air leakage area is severely eroded when material particles mixed with the negative pressure air pass through, resulting in a short service life for the non-metallic flexible sealing strip. During the operation of the sintering machine, the trolley deviates significantly, causing one side of the upper slide rail to detach from the non-metallic flexible sealing strip, resulting in a lack of sealing. The top of the non-metallic flexible sealing strip on one side is worn or pinched by the trolley groove, causing tearing. The high air temperature at the tail of the sintering machine causes the non-metallic flexible sealing strip to carbonize under high temperature, seriously affecting normal use. Summary of the Invention

[0003] In view of the current state of the technology, the purpose of this utility model is to provide an oil-free slide sealing device for sintering machines, which effectively solves the sealing problem of oil-free contact with non-metallic flexible sealing strips.

[0004] To achieve the above objectives, the technical solution of this utility model is: an oil-free slide sealing device for a sintering machine, comprising an upper slide and a corresponding lower slide, wherein a non-metallic flexible composite sealing plate is fixed on the lower slide, and the non-metallic flexible composite sealing plate contacts and cooperates with the upper slide; wherein:

[0005] The middle part of the lower end of the upper slide is a concave arc surface that transitions to a flat surface at both ends to form a sealing surface. The sealing surface of the upper slide contacts the non-metallic flexible composite sealing plate on the lower slide, so that the non-metallic flexible composite sealing plate is bent and deformed by the downward pressure and forms a seal that matches the concave arc surface of the upper slide.

[0006] In this invention, the upper slide rail is rectangular, allowing it to move synchronously with the sintering machine trolley.

[0007] In this novel non-metallic flexible composite sealing plate, a support body with an I-shaped cross-section is included. A heat-insulating and wear-resistant layer and a protective layer are respectively disposed within grooves formed on both sides of the support body. Therefore, by utilizing the non-metallic flexible composite sealing plate, which has a certain length and good elastic support deformation capacity, in contact with the upper slide sealing surface, sealing and self-compensating sealing functions are achieved.

[0008] Furthermore, the heat-insulating and wear-resistant layer is a composite material made of aramid yarn woven with stainless steel wire. Thus, a heat-insulating and wear-resistant composite is formed by using aramid yarn fabric and stainless steel wire.

[0009] Furthermore, the I-shaped support is molded from silicone material. Therefore, the support utilizes the excellent elastic deformation and recovery capabilities of silicone material.

[0010] Furthermore, the protective layer is made of aramid fiber braided fabric. Similarly, using aramid fiber braided fabric with abrasion resistance as a protective layer for contact and friction with the upper slide sealing surface improves service life.

[0011] The beneficial effects of this invention are as follows: A rectangular component with a concave arc sealing surface of the upper slide rail is installed in grooves on both sides of the bottom of the trolley, while the lower slide rail is installed on the slide rail support beam. This allows the non-metallic flexible composite sealing plate fixed on the lower slide rail to form a seal between the upper and lower slide rails. Thus, when dynamic friction occurs between the concave arc sealing surface of the upper slide rail and the non-metallic flexible composite sealing plate, the non-metallic flexible composite sealing plate, subjected to a certain downward pressure, bends and deforms from a vertical state, forming a seal that matches the concave arc sealing surface of the upper slide rail, and increasing the sealing contact area. Simultaneously, the elastic recovery function of the non-metallic flexible composite sealing plate can be effectively utilized to form a self-compensating seal, meeting the requirements of lateral offset of the trolley. Attached Figure Description

[0012] Figure 1 is a combined installation view of this novel invention;

[0013] Figure 2 This is the upper slide view in Figure 1;

[0014] Figure 3 yes Figure 2 Axial side view of the upper slide rail;

[0015] Figure 4 Figure 1 shows a schematic diagram of the end face of the non-metallic flexible composite sealing plate.

[0016] Figure 5 yes Figure 3 Schematic diagram of the installation position of the sintering machine trolley. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] See Figure 1 to Figure 4 The illustrated oil-free slide sealing device for a sintering machine includes an upper slide 1, which is rectangular. A screw 2 for mounting the sintering machine trolley is located at the upper end of the upper slide 1. The middle of the lower end of the upper slide 1 forms a concave arc surface transitioning to a flat surface at both ends, creating a sealing surface 3 for the concave arc of the upper slide 1. In this invention, a lower slide 4 corresponds to the lower end of the upper slide 1, and a non-metallic flexible composite sealing plate 9 is provided between the upper slide 1 and the lower slide 4. This flexible composite sealing plate 9 is fixed to the lower slide 4. Therefore, when the concave arc sealing surface 3 on the upper slide 1 contacts the non-metallic flexible composite sealing plate 9, it deforms under pressure to form a matching sealing surface. This not only increases the sealing surface area but also utilizes the elasticity of the non-metallic flexible composite sealing plate 9 to form a self-compensating function, satisfying the working conditions of lateral displacement of the trolley. In this invention, a fixed stop block 8 is provided on one side of the mounting base plate 5 of the sliding track 4, a movable pressure strip 7 is installed near the fixed stop block 8, and eccentric cam handles 6 are hinged at intervals on the base plate 5 on one side of the movable pressure strip 7. The eccentric cam handles 6 constitute a clamping and adjusting mechanism for the non-metallic flexible composite sealing plate 9. The clamping force of the non-metallic flexible composite sealing plate 9 between the movable pressure strip 7 and the fixed stop block 8 is adjusted by the eccentric cam on the eccentric cam handle 6.

[0019] In the above process, when installing the non-metallic flexible composite sealing plate 9, the eccentric cam handle 6 is moved counterclockwise. The eccentric cam 6 causes the movable pressure strip 7 to move horizontally towards the fixed stop block 8, thus clamping and fixing the non-metallic flexible composite sealing plate 9. Conversely, when disassembling and replacing the non-metallic flexible composite sealing plate 9, the eccentric cam handle 5 is moved clockwise. This causes the eccentric cam to disengage from the force exerted on the movable pressure strip 7, allowing the non-metallic flexible composite sealing plate 9 to be removed.

[0020] As described above, the non-metallic flexible composite sealing plate 9 includes an I-shaped support body 10, with a heat-insulating and wear-resistant layer 11 and a protective layer 12 respectively disposed in the grooves formed on both sides of the support body 10. During installation, the non-metallic flexible composite sealing plate 9 contacts and engages with the concave arc sealing surface 4 at the lower end of the upper slide rail 1 through one side of the protective layer 12.

[0021] As described above, the upper slide rail 1 is either a sealed hollow structure or a solid structure.

[0022] In the above, the heat-insulating and wear-resistant layer 11 is a composite material made of aramid yarn and stainless steel wire woven into a fabric.

[0023] In the above description, the I-shaped support 10 is molded from silicone material.

[0024] In the above, the protective layer 12 is an aramid yarn woven fabric.

[0025] See Figure 5 Figure 1 shows a schematic diagram of the installation position of the sintering machine trolley. The upper slide rail 1 is fixedly installed in the grooves on both sides of the sintering machine trolley 13 by screws, and can move back and forth with the sintering machine trolley 13. The lower slide rail 4 is installed on the support beam 14 of the air box slide rail. Therefore, a seal is formed by pressing the non-metallic flexible composite sealing plate 9 fixed on the lower slide rail 4 into an arc shape with the sealing surface 3 of the concave arc of the upper slide rail 1. This seals the negative pressure area of ​​the air box on one side of the sintering machine trolley 13 and the support beam 14 of the air box slide rail, thus isolating the material and air.

Claims

1. A sintering machine oil-free slide rail sealing device, comprising an upper slide rail and a corresponding lower slide rail, wherein a non-metallic flexible composite sealing plate is fixed on the lower slide rail, and the non-metallic flexible composite sealing plate contacts and engages with the upper slide rail; characterized in that: The middle part of the lower end of the upper slide is a concave arc surface that transitions to a flat surface at both ends to form a sealing surface. The sealing surface of the upper slide contacts the non-metallic flexible composite sealing plate on the lower slide, so that the non-metallic flexible composite sealing plate is bent and deformed by the downward pressure and forms a seal that matches the concave arc surface of the upper slide.

2. The oil-free slide sealing device for sintering machines according to claim 1, characterized in that, The upper slide is rectangular.

3. The oil-free slide sealing device for a sintering machine according to claim 1, characterized in that it is non-metallic. The flexible composite sealing plate includes an I-shaped support body, with a heat-insulating and wear-resistant layer and a protective layer respectively installed in the grooves formed on both sides of the support body.

4. The oil-free slide sealing device for a sintering machine according to claim 3, characterized in that, The heat-insulating and wear-resistant layer is a composite material made of aramid yarn and stainless steel wire woven into a fabric.

5. The oil-free slide sealing device for a sintering machine according to claim 3, characterized in that, The I-shaped support is molded from silicone material.

6. The oil-free slide sealing device for a sintering machine according to claim 3, characterized in that, The protective layer is made of aramid yarn woven fabric.

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