Novel wear-resistant convex guide rail system of water seal scraper

Abstract

A novel wear-resistant convex guide rail system of a water seal scraper comprises a guide rail mounted on a support beam of the water seal scraper, a chain running on the guide rail and a scraper connected with the chain, the guide rail comprises a bottom rail and a working rail, the working rail is centrally and convexly arranged at the top of the bottom rail and extends along the length direction of the bottom rail, and the working rail is detachably connected with the bottom rail. The working rail is provided with a first working top face extending in the length direction, the bottom rail constructs second working top faces extending in the length direction on the two sides of the working rail, and the first working top face is higher than the second working top faces. The chain comprises chain plates located on the two sides, chain pins used for being connected with the chain plates and rolling sleeves rotationally arranged on the chain pins in a sleeving mode, the rolling sleeves are placed on the working rail and make rolling contact with the first working top face, the two chain plates are located above the bottom rails on the two sides of the working rail respectively, and a spacing distance is reserved between the bottoms of the chain plates and the second working top face. The guide rail system is long in service life, the guide rails can be detached, and the replacement cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of domestic garbage treatment, and in particular relates to a novel wear-resistant convex guide rail system of a water-sealed scraper. Background Art

[0002] Municipal solid waste incineration power plants are urban infrastructure and terminal treatment facilities for municipal solid waste. At present, the ash conveying systems of many municipal solid waste incineration power plants generally include grate slag conveying systems, waste heat boiler bottom ash conveying systems, flue gas purification fly ash conveying systems and public ash conveying systems. The process of the grate slag conveying system mainly refers to the grate slag falling from the grate slag conveyor (water-sealed scraper) through the slag chute into the slag discharger and discharged into the slag pool.

[0003] For the existing water-sealed scraper, the guide rails of the original guide rail system are cut and formed from steel plates about 10 mm thick, and the working surface is designed to be flat. In the coordinated operation of the chain and the guide rail of the guide rail system, the chain only forms a hard contact with the working surface of the guide rail through the bottom of the chain plates on both sides, which has a small contact surface. As a result, the bottom of the chain plate wears too quickly, and the corresponding parts of the guide rail that contact the bottom of the chain plate also wear too quickly, resulting in a shortened service life of the guide rail and chain, and even frequent breakage due to excessive chain wear during operation. After the guide rail is severely worn locally, the guide rail needs to be replaced as a whole, which is a serious waste. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a new wear-resistant convex guide rail system of a water-sealed scraper which can effectively reduce wear to extend the service life and can realize partial replacement.

[0005] The utility model proposes a new wear-resistant convex guide rail system for a water-sealed scraper, comprising a guide rail installed on a support beam of the water-sealed scraper, a chain running on the guide rail, and a scraper connected to the chain, wherein the guide rail comprises a bottom rail and a working rail, wherein the working rail is centrally convexly arranged on the top of the bottom rail and extends along the length direction of the bottom rail, wherein the working rail and the bottom rail can be detachably connected, wherein the working rail has a first working top surface extending along the length direction, wherein the bottom rail has second working top surfaces extending along the length direction constructed on both sides of the working rail, wherein the first working top surface is higher than the second working top surface;

[0006] The chain includes chain plates on both sides, chain pins for connecting the chain plates, and roller sleeves rotatably mounted on the chain pins. The roller sleeves are placed on the working rails and in rolling contact with the first working top surface. The two chain plates are respectively located above the bottom rails on both sides of the working rails, and a spacing distance is left between the bottom of the chain plates and the second working top surface.

[0007] Preferably, the roller sleeve comprises a first sleeve body and a second sleeve body, the second sleeve body is centrally mounted on the outer circumferential wall of the first sleeve body, the first sleeve body and the second sleeve body are an integral structure, and the axial length of the second sleeve body is smaller than the axial length of the first sleeve body.

[0008] Preferably, the radial distance between the outer circumferential wall of the second sleeve body and the outer circumferential wall of the first sleeve body is 2.5 mm to 3.5 mm.

[0009] Preferably, the spacing distance between the bottom of the chain plate and the second working top surface is at least greater than the radial distance between the outer circumferential wall of the second sleeve body and the outer circumferential wall of the first sleeve body.

[0010] Preferably, the axial distance that the first sleeve extends beyond the end of the second sleeve is 3.5 mm to 5.5 mm.

[0011] Preferably, the top of the bottom rail is provided with a snap-in groove running through both ends of the bottom rail, the bottom of the working rail is constructed as a clip strip that snaps into engagement with the snap-in groove, and the working rail is detachably connected to the top of the bottom rail through the clip strip at the bottom; a loading plate is installed on the support beam, and corresponding mounting holes are provided on the working rail and the bottom rail so that they can be detachably connected to the loading plate as a whole.

[0012] Preferably, the clamping groove is a T-shaped groove, and the clamping strip is a T-shaped clamping strip matching the T-shaped groove. A downward extending guide strip is provided on the top wall of the T-shaped groove near the opening side wall, and a secondary clamping slot is formed between the guide strip and the inner side wall of the T-shaped groove. An upward secondary clamping strip is provided at the end of the transverse clamping strip of the T-shaped clamping strip, and the secondary clamping strip is arranged in the secondary clamping slot.

[0013] Preferably, a guide plate is also installed on the support beam of the water-sealed scraper conveyor, and the guide plate as a whole covers the top of the chain. The guide plate includes a first inclined plate and a second inclined plate, the inclination of the first inclined plate is smaller than the inclination of the second inclined plate, and the first inclined plate is connected to the support beam of the water-sealed scraper conveyor.

[0014] Preferably, the scraper is a right-angle scraper, a right-angle bottom plate of which forms a bottom working plate, and the bottom working plate has a flat bottom working surface, and a manganese steel plate of 8 mm to 12 mm is welded on the bottom working surface.

[0015] The utility model discloses a novel wear-resistant convex guide rail system for a water-sealed scraper, which is equipped with a working rail, a bottom rail, a first working top surface, two second working top surfaces and a roller sleeve, so that the roller sleeve is in rolling contact with the first working top surface, and a spacing distance is left between the bottom of the chain plate and the second working top surface. In this way, during operation, the roller sleeve first has rolling friction with the first working top surface, and after the roller sleeve is worn to a certain extent, the bottom of the chain plate is in contact and wear with the second working top surface. This effectively protects the important structural component of the chain, namely the chain plate, so that the bottom of the chain plate does not have contact and wear with the second working top surface throughout the entire service life, effectively reducing the wear of the bottom of the chain plate. Compared with the existing guide rail system, the guide rail system of the utility model has a significantly extended service life.

[0016] The roller sleeve of the utility model is rotatably mounted on the chain pin. During operation, the important connecting component of the chain, namely the chain pin, is protected by the roller sleeve and does not come into contact and wear with the guide rail, thereby effectively avoiding the occurrence of severe accidents due to the breakage of the connecting component of the chain.

[0017] The guide rail system of the utility model includes a working rail and a bottom rail, and the working rail and the bottom rail can be disassembled and connected. In this way, when the working rail or the bottom rail is seriously worn, the corresponding rail body can be disassembled and replaced without replacing the entire guide rail. Generally speaking, the working rail is worn during the entire use cycle, and it is more likely that the working rail will be replaced first. After a period of replacement, the bottom rail will be worn to a certain extent. When the wear is serious, the bottom rail can be replaced, and the replaced working rail can continue to be used. This replacement avoids the phenomenon that the guide rail must be replaced as a whole once wear occurs as in the prior art, thereby effectively saving the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a new wear-resistant convex guide rail system of a water-sealed scraper of the utility model;

[0019] Figure 2 A schematic diagram of a chain of the guide rail system of the present invention;

[0020] Figure 3 The side view schematic diagram of the guide rail of the guide rail system of the utility model:

[0021] Figure 4 It is a cross-sectional schematic diagram of the guide rail of the guide rail system of the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the structure of the guide plate of the guide rail system.

[0023] Support beam 1;

[0024] Guide rail 2; bottom rail 21, snap-in groove 211, second working top surface 24; working rail 22, snap-in strip 221, first working top surface 23;

[0025] Chain 3, chain plate 31, chain pin 32, roller sleeve 33, first sleeve body 331, second sleeve body 332;

[0026] Scraper 4, loading plate 5, mounting hole 6, top wall 7, guide strip 8, auxiliary card slot 9, transverse card strip 10, auxiliary card strip 11;

[0027] Guide plate 12, first inclined plate 121, second inclined plate 122;

[0028] Bottom working plate 13 and manganese steel plate 14. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Based on the problem that the important structural components on both sides of the chain, namely the bottom of the chain plate, are easy to wear in the guide rail system of the existing water-sealed scraper, and the guide rail needs to be replaced as a whole, the utility model adopts the following ideas to solve the above problems: First, a roller sleeve is rollingly installed on the chain pin of the chain, so that the roller sleeve is first in rolling contact, and the bottom of the chain plate is suspended in the air, so that the roller sleeve can bear the wear for a period of time, and only after the wear reaches a certain degree, the bottom of the chain plate will be in contact and wear, thereby effectively extending the service life of the entire guide rail system; second, the guide rail is constructed into a working rail and a bottom rail, and the working rail and the bottom rail are detachable, thereby avoiding the overall replacement of the guide rail after it is worn, which can effectively save the replacement cost.

[0033] Specifically, refer to Figure 1-Figure 5 In this embodiment, a new wear-resistant convex guide rail system for a water-sealed scraper is disclosed, including a guide rail 2 installed on a support beam 1 of the water-sealed scraper, a chain 3 running on the guide rail 2, and a scraper 4 connected to the chain 3.

[0034] There are many structural styles for the guide rail 2. In this embodiment, the guide rail 2 is constructed as an inverted T-shaped rail structure. Specifically, the guide rail 2 includes a bottom rail 21 and a working rail 22. The working rail 22 is centrally convexly arranged on the top of the bottom rail 21 and extends along the length direction of the bottom rail 21. The working rail 22 and the bottom rail 21 can be detachably connected. The working rail 22 has a first working top surface 23 extending along the length direction. The bottom rail 21 has a second working top surface 24 extending along the length direction on both sides of the working rail 22. The first working top surface 23 is higher than the second working top surface 24. Through such a structure, the guide rail 2 in this embodiment has two working top surfaces of different heights, and the two lower working top surfaces are symmetrically located on both sides of the higher working top surface.

[0035] There are many structural styles for the structure of the chain 3. In this embodiment, the chain 3 is constructed as follows: the chain 3 includes chain plates 31 on both sides, chain pins 32 for connecting the chain plates 31, and roller sleeves 33 rotatably mounted on the chain pins 32. The roller sleeves 33 are placed on the working rails 22 and are in rolling contact with the first working top surface 23. The two chain plates 31 are respectively located above the bottom rails 21 on both sides of the working rails 22, and a spacing distance is left between the bottom of the chain plate 31 and the second working top surface 24. It should be noted that in this embodiment, the roller sleeves 33 are particularly rotatably mounted on the chain pins 32, and the roller sleeves 33 are used to make rolling contact with the first working top surface 23, so that the chain pins 32 are fully protected, thereby avoiding the occurrence of a bad situation in which the chain pins 32, which are important connecting components of the chain 3, are worn and the entire chain 3 is broken.

[0036] In this embodiment, after optimizing and constructing the guide rail 2 and the chain 3, during the cooperation between the chain 3 and the guide rail 2, the chain 3 is formed into a concave structure with the opening facing downward by the middle roller sleeve 33 and the chain pin 32, and the chain plates 31 on both sides, while the guide rail is formed into a convex structure by the working rail 22 and the bottom rail 21. In this way, during operation, the raised working rail 22 is equivalent to being stuck in the concave structure, thereby reducing the probability of the chain derailing or deviation.

[0037] In this embodiment, the roller sleeve 33 is set so that it preferentially rolls with the first working top surface 23, and the wear caused by rolling contact is relatively much smaller, which also reduces the wear of the roller sleeve 33 to a certain extent and prolongs the service life. More importantly, there is a spacing distance between the bottom of the chain plate 31 and the second working top surface 24, so that the bottom of the chain plate 31 is suspended, so that in the early stage of operation, the bottom of the chain plate 31 will not contact the second working top surface 24, avoiding the chain plate 31 from being worn during the entire service life of the guide rail system. After the roller sleeve 33 is worn to a certain extent, the thickness of the roller sleeve 33 is worn, and the chain plate 31 of the chain 3 drops by the same distance. When the chain plate 31 drops to contact the second working top surface 24, the chain plate 31 starts to contact the second working top surface 24, and wear occurs at this time. Because the chain plate 31 changes from a suspended state to a supported contact state at this time, the bearing wear of the roller sleeve 33 is also reduced. As a result, the wear progress of the entire chain 3 is slowed down, and the service life of the guide rail system is effectively extended as a whole.

[0038] It should be noted that, in this embodiment, the roller sleeve 33 effectively protects the chain pin 32 on the one hand, and effectively protects the chain plate 31 on the other hand, and finally delays its own wear. Compared with the existing guide rail system, the service life of the guide rail system of this embodiment is significantly extended.

[0039] To further optimize the structure of the roller sleeve 33, in this embodiment, the roller sleeve 33 includes a first sleeve 331 and a second sleeve 332, wherein the second sleeve 332 is centrally mounted on the outer circumferential wall of the first sleeve 331, the first sleeve 331 and the second sleeve 332 are an integrated structure, and the axial length of the second sleeve 332 is less than the axial length of the first sleeve 331. By configuring the roller sleeve 33 as an inner and outer composite sleeve, the first sleeve 331 starts to wear only after the second sleeve 332 is completely worn, so that compared with a single roller sleeve 33, the composite sleeve is more wear-resistant and has a longer service life.

[0040] Considering the actual processing feasibility and the assembly of the entire guide rail system, in this embodiment, the radial distance between the outer circumferential wall of the second sleeve 332 and the outer circumferential wall of the first sleeve 331 is controlled to be between 2.5 mm and 3.5 mm, preferably, set to 3 mm. At the same time, the axial distance of the first sleeve 331 extending from the end of the second sleeve 332 is controlled to be between 3.5 mm and 5.5 mm, preferably, set to 4 mm.

[0041] In order to extend the time that the chain plate 31 is suspended as much as possible, the spacing distance between the bottom of the chain plate 31 and the second working top surface 24 is at least greater than the radial distance between the outer circumferential wall of the second sleeve 332 and the outer circumferential wall of the first sleeve 331. When the spacing distance is just the radial distance, it means that after the wall thickness of the second sleeve 332 is completely worn, the bottom of the first sleeve 331 and the chain plate 31 begin to contact with the corresponding working surface and wear. Of course, as an optimization, the spacing distance is generally larger than the radial distance, allowing the first sleeve 331 to wear to a suitable thickness before the chain plate 31 begins to wear, so that the chain plate 31 can be protected to the greatest extent and the service life of the guide rail system can be extended.

[0042] For the link plate 31 , as an important structural component of the chain 3 , protecting it to the greatest extent is the primary task of this embodiment, which is as important as protecting the chain pin 32 .

[0043] In this embodiment, in order to realize that the working rail 22 and the bottom rail 21 can be detachably connected and can be integrated into a whole: the top of the bottom rail 21 is provided with a clamping groove 211 that runs through both ends of the bottom rail 21, and the bottom of the working rail 22 is configured as a clamping strip 221 that is clamped and matched with the clamping groove 211, and the working rail 22 is detachably connected to the top of the bottom rail 21 through the clamping strip 221 at the bottom; and the loading plate 5 is installed on the support beam 1, and the working rail 22 and the bottom rail 21 are also provided with corresponding mounting holes 6 to be detachably connected to the loading plate 5 as a whole. In this way, the working rail 22 and the bottom rail 21 are detachable, and can be integrated and installed on the loading plate 5.

[0044] Furthermore, in this embodiment, the clamping groove 211 is a T-shaped groove, the clamping strip 221 is a T-shaped clamping strip matched with the T-shaped groove, a guide strip 8 extending downward is provided on the top wall 7 near the opening side wall of the T-shaped groove, and a secondary clamping groove 9 is formed between the guide strip 8 and the inner side wall of the T-shaped groove, and an upward secondary clamping strip 11 is provided at the end of the transverse clamping strip 10 of the T-shaped clamping strip, and the secondary clamping strip 11 is arranged in the secondary clamping groove 9. The provision of the guide strip 8 can increase the contact and matching area of ​​the working rail 22 and the bottom rail 21 at the opening of the clamping groove 211, so that it is easier to maintain the stability of the connection between the two; and the provision of the secondary clamping strip 11 further increases the contact and matching area of ​​the working rail 22 and the bottom rail 21 inside the clamping groove 211, so that the clamping of the two is more firm and reliable, and it is not easy to have the problem of slight displacement to the left and right.

[0045] In order to prevent the ash from falling directly on the chain 3, a guide plate 12 is also installed on the support beam 1. The guide plate 12 covers the chain 3 as a whole. The guide plate 12 includes a first inclined plate 121 and a second inclined plate 122. The inclination of the first inclined plate 121 is smaller than that of the second inclined plate 122. The first inclined plate 121 is connected to the support beam 1. The setting of the guide plate 12 can effectively prevent the ash from falling directly on the chain 3, thereby reducing excessive wear of the chain 3 and the guide rail 2. At the same time, the guide plate 12 is composed of two first inclined plates 121 and second inclined plates 122 with different inclinations. Compared with a single inclined plate, on the one hand, the overall strength is increased, and the load-bearing capacity for the ash is enhanced. On the other hand, the second inclined plate 122 with a larger inclination is more conducive to the ash falling at the edge.

[0046] As a further optimization of the guide rail system, the scraper 4 is a right-angle scraper, and a right-angle bottom plate of the right-angle scraper forms a bottom working plate 13, and the bottom working plate 13 has a flat bottom working surface, and the bottom working surface is welded with a 8mm to 12mm manganese steel plate 14. The setting of the manganese steel plate 14 effectively increases the thickness of the bottom working plate 13, making it more wear-resistant and durable.

[0047] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A new wear-resistant convex guide rail system for a water-sealed scraper, comprising a guide rail installed on a support beam of the water-sealed scraper, a chain running on the guide rail, and a scraper connected to the chain, characterized in that: The guide rail comprises a bottom rail and a working rail, wherein the working rail is centrally protruded on the top of the bottom rail and extends along the length direction of the bottom rail, the working rail and the bottom rail are detachably connected, the working rail has a first working top surface extending along the length direction, and the bottom rail has second working top surfaces extending along the length direction on both sides of the working rail, and the first working top surface is higher than the second working top surface; The chain includes chain plates on both sides, chain pins for connecting the chain plates, and roller sleeves rotatably mounted on the chain pins. The roller sleeves are placed on the working rails and in rolling contact with the first working top surface. The two chain plates are respectively located above the bottom rails on both sides of the working rails, and a spacing distance is left between the bottom of the chain plates and the second working top surface.

2. According to claim 1, a new type of wear-resistant convex guide rail system for a water-sealed scraper, characterized in that: The roller sleeve comprises a first sleeve body and a second sleeve body, wherein the second sleeve body is centrally arranged on the outer circumferential wall of the first sleeve body, the first sleeve body and the second sleeve body are an integral structure, and the axial length of the second sleeve body is smaller than the axial length of the first sleeve body.

3. A new wear-resistant convex guide rail system for a water-sealed scraper according to claim 2, characterized in that: The radial distance between the outer circumferential wall of the second sleeve body and the outer circumferential wall of the first sleeve body is 2.5 mm to 3.5 mm.

4. A new wear-resistant convex guide rail system for a water-sealed scraper according to claim 3, characterized in that: The spacing distance between the bottom of the chain plate and the second working top surface is at least greater than the radial distance between the outer circumferential wall of the second sleeve body and the outer circumferential wall of the first sleeve body.

5. The new wear-resistant convex guide rail system of a water-sealed scraper according to claim 2 is characterized by: The axial distance of the first sleeve extending from the end of the second sleeve is 3.5 mm to 5.5 mm.

6. The new wear-resistant convex guide rail system of a water-sealed scraper according to claim 1 is characterized by: The top of the bottom rail is provided with a clamping groove running through the two ends of the bottom rail, the bottom of the working rail is constructed as a clamping strip that is clamped with the clamping groove, and the working rail is detachably connected to the top of the bottom rail through the clamping strip at the bottom; a loading plate is installed on the support beam, and corresponding mounting holes are opened on the working rail and the bottom rail so as to be detachably connected to the loading plate as a whole.

7. A new wear-resistant convex guide rail system for a water-sealed scraper according to claim 6, characterized in that: The clamping groove is a T-shaped groove, and the clamping strip is a T-shaped clamping strip matching the T-shaped groove. A downward extending guide strip is arranged on the top wall of the T-shaped groove near the opening side wall, and a secondary clamping slot is formed between the guide strip and the inner side wall of the T-shaped groove. An upward secondary clamping strip is arranged at the end of the transverse clamping strip of the T-shaped clamping strip, and the secondary clamping strip is arranged in the secondary clamping slot.

8. The new wear-resistant convex guide rail system of a water-sealed scraper according to claim 1 is characterized by: A guide plate is also installed on the support beam of the water-sealed scraper conveyor. The guide plate covers the chain as a whole. The guide plate includes a first inclined plate and a second inclined plate. The inclination of the first inclined plate is smaller than that of the second inclined plate. The first inclined plate is connected to the support beam of the water-sealed scraper conveyor.

9. The novel wear-resistant convex guide rail system of a water-sealed scraper according to claim 1 is characterized by: The scraper is a right-angle scraper, a right-angle bottom plate of which forms a bottom working plate, and the bottom working plate has a flat bottom working surface, and a manganese steel plate of 8mm to 12mm is welded on the bottom working surface.

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