A rolled universal anti-wear pad suitable for railway freight transportation

Abstract

The present invention provides a rolled universal anti-wear pad suitable for railway freight transportation. The anti-wear pad is made of rubber, and one end of the anti-wear pad body is provided with a double limiting ridge, and the other end is provided with a single limiting ridge. A row of positioning bolts is provided at an oblique position on the outside of one of the double limiting ridges and close to the anti-wear pad body. The anti-wear pad body is provided with three groups of row positioning holes, namely near, middle, and far, according to the position relationship from the double limiting ridges. The anti-wear pad is rolled into a cylindrical shape, and the positioning bolts can pass through the row positioning holes on one or two layers of the anti-wear pad body in three ways: far, middle, and near-far. Reinforcement materials of different outer diameters, namely coarse, medium, and fine, are pulled to form a surrounding wrap. After the top of the "umbrella"-shaped positioning bolt passes through the positioning hole, it locks and clamps the anti-wear pad body to form a firm cylindrical structure, effectively preventing the anti-wear pad of a conventional planar configuration from loosening due to vibration during railway transportation, thereby ensuring that the anti-wear (pad) measure is effective and reliable.

Description

Technical Field

[0001] The invention relates to the field of railway transportation, and in particular to a rolled universal anti-wear pad suitable for railway freight transportation. Background Art

[0002] During cargo loading and transportation, it is necessary to use pulling reinforcement materials (such as steel wire ropes, multi-strand No. 8 galvanized iron wires, chains, etc.) to connect and reinforce the cargo to the vehicle body. In order to avoid wear and breakage of the pulling reinforcement materials during transportation, it is usually necessary to take anti-wear (pad) measures between the corners of the vehicle and the contact parts of the pulling reinforcement materials. At present, such anti-wear (pad) measures generally adopt the method of placing rubber pads at the contact points between the pulling reinforcement materials and the cargo and vehicle corners. The utility model with patent number 200920304818.7 discloses "Rubber anti-wear pads for cargo transportation loading reinforcement", which are divided into models such as Π, C, and L according to the applicable position and shape. In essence, it is a planar anti-wear pad that adapts to the surface shape of the applicable position by changing its shape. Although the rubber anti-wear pad of this structure can be used for pulling reinforcement materials with different outer diameters such as wire ropes, in actual use, due to vibration and other effects, the anti-detachment wings on both sides of the rubber anti-wear pad will fail, resulting in the loosening of the Π-shaped and L-shaped rubber anti-wear pads during railway transportation, the failure of anti-wear (pad) measures, and the safety risk of direct contact between the pulling reinforcement material and the goods and vehicles at the corners.

[0003] The utility model disclosed in Patent No. 201920927862.7 is a "wear-proof sleeve for transportation". It adopts the structure of a wear-proof sleeve, and a limiting rib is set on the inner wall of the sleeve body. The groove between the two limiting ribs forms a channel. The anti-wear sleeve is generally a tubular structure, and adopts a method of partially surrounding and wrapping the tension reinforcement material. It effectively prevents the anti-wear pad of the ordinary plane configuration from loosening due to vibration and other effects during railway transportation, and the anti-wear (pad) measures become ineffective. It realizes the uniform applicability of the anti-wear sleeve to multiple different shapes of positions where "anti-wear measures should be taken". However, in railway freight transportation, a variety of materials and different outer diameters of tension reinforcement materials are used, and the wear-proof sleeve with a fixed inner diameter cannot adapt to this situation. When preparing for use, it must be inserted from the end of the tension reinforcement material, and the operation process is cumbersome; if a variety of wear-proof sleeves with different inner diameters are prepared, the workload of railway-related business departments will increase. Summary of the Invention

[0004] The invention provides an anti-wear pad for railway flat car freight transportation, which can partially surround and wrap pulling reinforcement materials with different outer diameters to prevent the materials from being worn.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0006] The present invention provides a rolled universal anti-wear pad suitable for railway freight transportation, which is characterized in that: the anti-wear pad is made of rubber material, a double limiting ridge is provided at one end of the anti-wear pad body, and the inner groove between the double limiting ridges forms a narrow channel; a row of positioning bolts is obliquely provided on the outer side of a limiting ridge of the anti-wear pad body in the above-mentioned double limiting ridges, and the anti-wear pad body is provided with multiple groups of row-shaped positioning holes and positioning grooves located on the inner side corresponding to the same; the anti-wear pad is rolled into a cylindrical shape, and the positioning bolts can pass through the corresponding positioning holes. At this time, the outer sides of the double limiting ridges and the narrow channel therebetween just fall into the positioning grooves.

[0007] Preferably, the outer surface of the anti-wear pad body is provided with protruding lines or texts to prevent slipping.

[0008] Preferably, an extension structure is provided at both ends of the double-limit ridge. The extension structure is that a cam with anti-slip threads on the outer wall or a recess with anti-slip threads on the inner wall is provided at one end of the double-limit ridge, and a recess with anti-slip threads on the inner wall or a cam with anti-slip threads on the outer wall is provided at the other end of the double-limit ridge, which is used to splice multiple anti-wear pads together.

[0009] Preferably, the anti-wear pad has a central portion that is thicker than the edge portions on both sides along the direction of the limiting ridge.

[0010] Preferably, after the positioning bolt passes through the positioning hole, the anti-wear pad forms a stable cylindrical structure, forming a surrounding cover on the periphery of the pulling reinforcement material, thereby ensuring the effectiveness of the anti-wear (pad) measure.

[0011] Preferably, the top end of the positioning bolt is enlarged into an "umbrella" shape, and can be locked after the top end of the positioning bolt passes through the positioning hole; the positioning bolt is located at an oblique position on the outside of a limiting ridge close to the anti-wear pad body in the double limiting ridges. Under normal circumstances, the pulling and reinforcing material will not cause the deformation and failure of the "umbrella"-shaped enlarged structure at the top end due to squeezing, regardless of whether it is pressed on the narrow channel part or the wide channel part; even if the pulling and reinforcing material breaks through the limitation of the limiting ridge, causing one or two of the positioning bolts in the entire row to be compressed and deformed and lose their structural function, the remaining positioning bolts that have not failed can still ensure that the cylindrical structure of the anti-wear pad is maintained.

[0012] Preferably, after the positioning bolts pass through the near row of positioning holes, they can also pass through the far row of positioning holes. In this case, the cylindrical structure of the anti-wear pad suitable for small outer diameter pulling and reinforcing materials is at least a double-layer anti-wear pad body, with the narrow channel and the double-limiting ridges on both sides thickened to form a three-layer anti-wear pad body. Under normal circumstances, the small outer diameter pulling and reinforcing material should be pressed and fixed in the narrow channel.

[0013] Preferably, a third limiting ridge is provided at the other end of the anti-wear pad body, and a positioning post with anti-slip threads on the outer wall is positioned centrally inside this limiting ridge. When the positioning bolt passes through the middle row of positioning holes, the positioning post can pass through a single positioning hole at a corresponding position on a layer of the anti-wear pad body; the inner wall of this single positioning hole has anti-slip threads. In this case, the inner grooves of the two layers of the anti-wear pad body between the double limiting ridges and the third limiting ridge form a wide channel. The cylindrical structure of the anti-wear pad suitable for medium outer diameter pulling and reinforcing materials is at least a single-layer anti-wear pad body, and the wide channel and the limiting ridges on both sides are thickened to form a double-layer anti-wear pad body. Under normal circumstances, the medium outer diameter pulling and reinforcing material should be pressed and fixed in the wide channel.

[0014] Preferably, after the positioning bolt passes through the far row positioning hole, the anti-wear pad cylindrical structure suitable for pulling and reinforcing materials with a large outer diameter is a single-layer anti-wear pad body.

[0015] Preferably, for small-diameter traction reinforcement materials, the contact area with the cargo and the vehicle body is small, resulting in relatively high contact pressure. A relatively thick anti-wear pad cylindrical structure can better disperse and reduce pressure, thereby better protecting the small-diameter traction reinforcement materials. For large-diameter traction reinforcement materials, the contact area with the cargo and the vehicle body is large, resulting in relatively low contact pressure. A thinner anti-wear pad cylindrical structure can meet the needs of protecting large-diameter traction reinforcement materials. While ensuring the effectiveness of anti-wear (pad) measures, this unique method of adaptively adjusting the thickness of the anti-wear pad according to the thickness of the traction reinforcement material's outer diameter results in high material utilization of the anti-wear pad.

[0016] The beneficial effect of the present invention is that the anti-wear pad for railway freight can be directly covered at the location where anti-wear (pad) measures need to be taken on the periphery of the pulling and reinforcing materials of different outer diameters without having to be inserted from the end of the pulling and reinforcing materials. The top end of the positioning bolt passes through the positioning hole and is locked to form a tubular structure. While achieving simple operation, it effectively avoids the displacement of the angular force points of the pulling and reinforcing materials and the goods and railway vehicles due to vibration and the like during railway transportation, which may cause the anti-wear pad of ordinary plane configuration to loosen, thereby ensuring that the anti-wear (pad) measures are effective and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a perspective view of the outer side structure of a rolled universal anti-wear pad suitable for railway freight transportation according to the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the inner side of a rolled universal anti-wear pad suitable for railway freight transportation of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Figure 1 The figure shows a three-dimensional structural diagram of a roll-type universal anti-wear pad suitable for railway freight transportation according to this embodiment. The anti-wear pad is rectangular and at least 100 mm wide. A double limiting ridge is provided at one end of the anti-wear pad body, with an inner groove between the double limiting ridges 1 forming a narrow channel 2. A row of positioning bolts 3 are provided obliquely on the outside of one of the double limiting ridges, their tops bulging into an "umbrella" shape. The anti-wear pad body is provided with three groups of positioning holes 4, located near, middle, and far, and a positioning groove 5 located on the inside, based on their positional relationship to the double limiting ridges. When the anti-wear pad is rolled into a cylindrical shape, the positioning bolts can be passed through the rows of positioning holes in one or two layers of the anti-wear pad body in three different configurations: far, middle, or near-far. These bolts can then be pulled through the reinforcement material of varying outer diameters, corresponding to coarse, medium, and fine diameters, to form a surrounding wrap. The bulged top portion of the "umbrella"-shaped positioning bolt 3 can be locked and secured after passing through the positioning hole 4, giving the anti-wear pad the appearance of an anti-wear sleeve. The double limiting ridges and the outer portion of the narrow channel therebetween just fall into the positioning groove 5. Since the anti-wear pad is provided with multiple groups of positioning holes 4 corresponding to the positioning bolts 3, the anti-wear pad becomes an anti-wear sleeve with a variable inner diameter to accommodate pulling reinforcement materials of different outer diameters.

[0021] A third limiting ridge 8 is provided at the other end of the anti-wear pad body, and a positioning column 9 with an outer wall having anti-slip threads is provided in the center of the inner side of the limiting ridge. When the positioning bolt passes through the middle row of positioning holes, the positioning column can pass through a single positioning hole 10 with an inner wall having anti-slip threads at a corresponding position on a layer of the anti-wear pad body. At this time, a wide channel is formed in the inner grooves of the two layers of the anti-wear pad body between the double limiting ridges and the third limiting ridge. The cylindrical structure of the anti-wear pad suitable for tensile reinforcement materials with medium outer diameter is at least a single-layer anti-wear pad body, and the part of the wide channel and the limiting ridges on both sides thereof is thickened to form a double-layer anti-wear pad body. Since it is highly likely that the central area of the anti-wear pad needs to withstand greater pressure (strong) and friction than the edge parts on both sides, the thickness of the central part of the anti-wear pad is greater than the edge parts on both sides. In actual use, it may be necessary to splice multiple anti-wear pads together. Therefore, an extension structure is provided at both ends of the double limiting ridges. The extension structure is a double-limiting ridge with a threaded protrusion 6 on the outer wall or a notch 7 on the inner wall, at one end. The other end of the double-limiting ridge has a corresponding notch 7 on the inner wall or a threaded protrusion 6 on the outer wall. The outer surface of the anti-wear pad body is provided with raised patterns or text to increase friction.

Claims

1. A roll-type universal anti-wear pad suitable for railway freight transportation, characterized by: The anti-wear pad is made of rubber, and a double limiting ridge (1) is provided at one end of the anti-wear pad body, and an inner groove between the double limiting ridges forms a narrow channel (2); a row of positioning bolts (3) is obliquely provided on the outer side of a limiting ridge of the anti-wear pad body in the double limiting ridges, and the anti-wear pad body is provided with a plurality of corresponding row-shaped positioning holes (4) and positioning grooves (5) located on the inner side; when the anti-wear pad is rolled into a cylindrical shape, the positioning bolts (3) can pass through the corresponding positioning holes (4), and at this time, the outer sides of the double limiting ridges and the narrow channel therebetween just fall into the positioning grooves.

2. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: The outer surface of the anti-wear pad body is provided with protruding lines or texts to prevent slipping.

3. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: An extension structure is provided at both ends of the double-limit convex ridge. The extension structure is provided at one end of the double-limit convex ridge with a cam (6) having an anti-slip thread on the outer wall or a notch (7) having an anti-slip thread on the inner wall; correspondingly, a notch (7) having an anti-slip thread on the inner wall or a cam (6) having an anti-slip thread on the outer wall is provided at the other end of the double-limit convex ridge, for splicing a plurality of anti-wear pads together.

4. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: The anti-wear pad has a central portion that is thicker than the edge portions on both sides along the direction of the limiting ridge.

5. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: After the positioning bolt (3) passes through the positioning hole (4), the anti-wear pad forms a stable cylindrical structure, forming a surrounding covering on the periphery of the pulling reinforcement material, thereby ensuring the effectiveness of the anti-wear measure.

6. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: The top end of the positioning bolt (3) is enlarged into an "umbrella" shape, and can be locked after the top end of the positioning bolt (3) passes through the positioning hole (4).

7. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: After the positioning bolt (3) passes through the near row positioning holes (4), it can also pass through the far row positioning holes; at this time, the anti-wear pad cylindrical structure suitable for small outer diameter pulling reinforcement materials is at least a double-layer anti-wear pad body, and the part in the narrow channel and the double limiting ridges on both sides thereof is thickened to form a three-layer anti-wear pad body.

8. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: A third limiting ridge (8) is provided at the other end of the anti-wear pad body, and a positioning column (9) with an outer wall having anti-slip threads is provided at the center of the inner side of the limiting ridge; when the positioning bolt passes through the middle row of positioning holes, the positioning column can pass through a single positioning hole (10) at a corresponding position on a layer of the anti-wear pad body; the inner wall of the single positioning hole has anti-slip threads; at this time, the inner grooves of the two layers of the anti-wear pad body between the double limiting ridges and the third limiting ridge form a wide channel; the anti-wear pad cylindrical structure suitable for medium outer diameter pulling reinforcement materials is at least a single-layer anti-wear pad body, and the parts in the wide channel and the limiting ridges on both sides thereof are thickened to form a double-layer anti-wear pad body.

9. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: After the positioning bolt (3) passes through the far row positioning hole (4), the anti-wear pad cylindrical structure suitable for pulling and reinforcing materials with a large outer diameter becomes a single-layer anti-wear pad body.

10. The roll-type universal anti-wear pad suitable for railway freight transportation according to claim 1, characterized in that: For small outer diameter pulling and reinforcing materials, the contact area with the cargo and the vehicle body is small, so the contact surface pressure is relatively large. The relatively thick anti-wear pad cylindrical structure can better disperse the pressure and protect the small outer diameter pulling and reinforcing materials; for large outer diameter pulling and reinforcing materials, the contact area with the cargo and the vehicle body is large, so the contact surface pressure is relatively small. The relatively thin anti-wear pad cylindrical structure can meet the needs of protecting the large outer diameter pulling and reinforcing materials.

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