A wear-resistant and vibration-damping clamp and its manufacturing method

Abstract

This invention belongs to the field of rail clamp technology, specifically a wear-resistant and vibration-damping clamp and its manufacturing method. It includes a plate comprising a U-shaped support plate, connecting rings, supporting ribs, and a deformation pre-reserved slot. Multiple connecting rings are formed on the inner side of the U-shaped support plate, and supporting ribs are provided in the gaps between the connecting rings. A deformation pre-reserved slot is formed on the upper side. The U-shaped support plate structure clamps the rail on both sides. When the rail is compressed and bent, the U-shaped support plate itself is also compressed and deforms to absorb the rail pressure, providing buffer protection. The supporting ribs and deformation pre-reserved slot on the inner side of the U-shaped support plate provide deformation space during deformation, and after deformation, the supporting ribs on the upper and lower sides contact to provide support, preventing the U-shaped support plate from deforming excessively and failing to rebound. This provides a shock-absorbing and buffering effect, protects the rail, prevents loose connections, and improves the structural connection stability.

Description

Technical Field

[0001] This invention relates to the field of rail clamp technology, specifically to a wear-resistant and vibration-damping clamp and its manufacturing method. Background Technology

[0002] Rail clamps are widely used in railway engineering, primarily for connecting and securing rails. During use, rails are subjected to significant weight differences, resulting in gaps of varying sizes at their joints. When a train passes, the weight difference creates strong vibrations and harsh noise, severely impacting the train's lifespan, operational safety, speed, and stability.

[0003] Patent CN98231855.3 discloses a rail connecting tool, specifically a rail connecting clamp. It consists of a clamp body, a protrusion, and a retaining seat; the protrusion is located at the top of the clamp body, and the retaining seat is located at the bottom of the clamp body. It has the advantages of reducing noise from train operation and extending the service life of both the vehicle and the rail.

[0004] The aforementioned connecting plates cannot provide effective cushioning and support during use, and will cause the connection to loosen when the rail vibrates, affecting the structural stability. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problems existing in the above and / or existing wear-resistant and vibration-damping clamps and their manufacturing methods, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a wear-resistant and vibration-damping clamp and its manufacturing method. The clamp employs a U-shaped support plate structure, held between the two sides of the rail. When the rail is compressed and bent, the U-shaped support plate itself is also compressed and deforms to absorb the rail pressure, providing buffer protection. Support ribs and deformation pre-reserved gaps are provided on the inner side of the U-shaped support plate. During deformation, the deformation pre-reserved gaps provide deformation space, and after deformation, the support ribs on the upper and lower sides contact to provide support, preventing the U-shaped support plate from deforming excessively and failing to rebound. This provides a shock-absorbing and buffering effect, protects the rail, prevents loose connections, and improves the stability of the structural connection.

[0008] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0009] A wear-resistant and vibration-damping clamp, comprising:

[0010] The plate includes a U-shaped support plate, connecting hole protrusions, support ribs, and deformation reserved gaps. Multiple connecting hole protrusions are opened on the inner side of the U-shaped support plate, and support ribs are provided in the gaps between the connecting hole protrusions. Deformation reserved gaps are opened on the upper part.

[0011] In a preferred embodiment of the wear-resistant and vibration-damping clamp of the present invention, a plurality of the connecting hole protrusions are evenly distributed on the inner side of the U-shaped support plate.

[0012] As a preferred embodiment of the wear-resistant and vibration-damping clamp of the present invention, the supporting rib is longitudinally supported on the inner side of the U-shaped support plate, and the deformation reserved joint adopts a transverse through reserved joint.

[0013] In a preferred embodiment of the wear-resistant and vibration-damping clamp of the present invention, the protrusion length of the connecting hole protrusion is less than the thickness of the supporting rib.

[0014] A method for manufacturing a wear-resistant and vibration-damping clamp as described in any of the above claims includes the following steps:

[0015] Step 1: Material pretreatment. Take the forging blank, grind the blank to remove surface impurities;

[0016] Step 2: Heating the forging billet. The prepared blank material is placed in the heating furnace for heating.

[0017] Step 3: Forging process. The heated blank is taken out and repeatedly hammered with a hydraulic press to make the structure compact and durable.

[0018] Step 4: Tempering to improve toughness, the forged and compacted blank is placed back into the heating furnace for tempering;

[0019] Step 5: Die forging. Take out the tempered blank and place it in the die cavity for pressing and shaping.

[0020] Step Six: Trimming and Grinding. The shaped workpiece is chamfered and trimmed to remove surface burrs.

[0021] Step 7: Surface treatment. Apply rust-proofing treatment to the metal surface of the workpiece to prevent rust and corrosion.

[0022] Compared with existing technologies, this invention adopts a U-shaped support plate structure, which is clamped on both sides of the rail. When the rail is compressed and bent, the U-shaped support plate itself is also compressed and deforms to absorb the rail pressure, providing buffer protection. Support ribs and deformation reserved gaps are set on the inner side of the U-shaped support plate. During deformation, the deformation reserved gaps provide deformation space, and after deformation, the support ribs on the upper and lower sides contact to provide support, preventing the U-shaped support plate from deforming too much and failing to rebound. It has a shock absorption and buffering effect, protects the rail, prevents loosening of the connection, and improves the stability of the structural connection. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a schematic diagram of the installation structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the axial structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the method steps of the present invention.

[0027] In the diagram: 100 plate, 110 U-shaped support plate, 120 connecting hole protrusion ring, 130 support rib, 140 deformation reserved gap. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0032] This invention provides a wear-resistant and vibration-damping clamp and its manufacturing method. It employs a U-shaped support plate structure, clamped to both sides of the rail. When the rail is compressed and bent, the U-shaped support plate itself is also compressed, deforming to absorb the rail pressure and providing buffer protection. Support ribs and deformation-pre-reserved slots are provided on the inner side of the U-shaped support plate. During deformation, the deformation-pre-reserved slots provide deformation space, and after deformation, the support ribs on the upper and lower sides contact to provide support, preventing the U-shaped support plate from deforming excessively and failing to rebound. This provides a shock-absorbing and buffering effect, protects the rail, prevents loose connections, and improves the structural connection stability. (See also...) Figures 1-3 Includes: 100 sheet metal parts.

[0033] The plate 100 includes a U-shaped support plate 110, a connecting hole protrusion 120, a support rib 130, and a deformation reserved gap 140. The connecting hole protrusion 120 is opened on the inner side of the U-shaped support plate 110, and the support rib 130 is provided in the gap between the connecting hole protrusions 120. The deformation reserved gap 140 is opened on the top.

[0034] Among them, the connecting hole protrusion ring 120 is an outwardly convex structure used to connect bolts. When wear occurs due to relative movement between the bolt and the U-shaped support plate 110, the outwardly convex connecting hole protrusion ring 120 provides wear-resistant protection, preventing the bolt from directly contacting the U-shaped support plate 110 and causing the U-shaped support plate 110 to wear and become thinner, thus improving the service life of the plate 100. When the rail is deformed under pressure, the deformation reserved gap 140 provides deformation space for the plate 100, allowing the plate 100 to provide elastic support for the rail, providing buffer protection, reducing the damage to the structure caused by vibration, and maintaining the stability of the structural connection. When the plate 100 deforms, the support ribs 130 on the upper and lower sides contact to form a rigid support structure, preventing the plate 100 from deforming too much and being unable to spring back to its original position.

[0035] The connecting hole protrusions 120 are evenly distributed on the inner side of the U-shaped support plate 110, so that the bolts are evenly connected and the force is evenly distributed.

[0036] The support rib 130 is longitudinally supported on the inner side of the U-shaped support plate 110. The deformation reserved joint 140 adopts a transverse through reserved joint, which divides the support rib 130 into upper and lower parts. When subjected to longitudinal pressure, the support rib 130 can fit together to form a longitudinal support structure.

[0037] The protrusion length of the connecting hole protrusion ring 120 is less than the thickness of the support rib 130 to prevent it from protruding outward after the bolt is installed.

[0038] A method for manufacturing a wear-resistant and vibration-damping clamp as described in any of the above claims includes the following steps:

[0039] Step 1: Material pretreatment. Take the forging blank, grind the blank to remove surface impurities, maintain material purity, and prevent external impurities from mixing into the structure and affecting structural strength.

[0040] Step 2: Heating the forging billet. The prepared blank material is placed in a heating furnace for heating. Heating softens the blank material, making it easier for subsequent forming and processing.

[0041] Step 3: Forging process. The heated blank is taken out and repeatedly hammered with a hydraulic press to make the structure compact and durable. Repeated hammering makes the structure more compact and improves its strength.

[0042] Step 4: Tempering to improve toughness. The forged and compacted blank is placed back into the heating furnace for tempering. The quenched workpiece is reheated to an appropriate temperature below the lower critical temperature Ac1 (the starting temperature of the transformation of pearlite to austenite during heating). After holding at this temperature for a period of time, it is cooled in air, water, oil, or other media to reduce or eliminate the internal stress in the quenched steel, thereby improving its ductility or toughness and giving the structure a spring-like effect, which can provide cushioning protection during vibration.

[0043] Step 5: Die forging. Take out the tempered blank and place it in the die cavity for pressing and shaping.

[0044] Step Six: Trimming and Grinding. After the workpiece is formed, chamfer and trim the edges to remove burrs from the surface, making the exterior of the workpiece smooth, easy to handle and use, and avoiding burrs and wind-driven sharp edges from scratching workers during the installation process.

[0045] Step 7: Surface treatment. Apply rust prevention treatment to the metal surface of the workpiece to prevent rust and corrosion, improve service life, and prevent the workpiece from rusting after prolonged external use.

[0046] In practical use, the plate 100 support is formed according to the above manufacturing method. The formed plate 100 is installed on both sides of the rail. Bolts connect the plate 100 to both sides of the rail through the connecting hole protrusion ring 120. The protruding connecting hole protrusion ring 120 provides wear-resistant protection and avoids the plate 100 from thinning due to back-and-forth friction between the bolt and the plate 100. When the train moves, the train presses on the rail, and the rail is compressed and bent. At this time, the plate 100 is compressed and deformed. During deformation, the deformation reserved gap 140 provides deformation space. After deformation, the upper and lower support ribs 130 contact to provide support, preventing the U-shaped support plate 110 from deforming too much and being unable to rebound, thus having a shock absorption and buffering effect.

[0047] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wear-resistant and vibration-damping clamp, characterized in that, include: The plate (100) includes a U-shaped support plate (110), a connecting hole protrusion (120), a support rib (130), and a deformation reserved gap (140). Multiple connecting hole protrusions (120) are provided on the inner side of the U-shaped support plate (110). Support ribs (130) are provided in the gaps between the connecting hole protrusions (120). Deformation reserved gaps (140) are provided on the support ribs (130). The support rib (130) is longitudinally supported on the inner side of the U-shaped support plate (110), and the deformation reserved joint (140) adopts a transverse through reserved joint; The protrusion length of the connecting hole protrusion (120) is less than the thickness of the support rib (130).

2. The wear-resistant and vibration-damping clamping plate according to claim 1, characterized in that, Multiple of the aforementioned connecting hole protrusions (120) are evenly distributed on the inner side of the U-shaped support plate (110).

3. A method for manufacturing a wear-resistant and vibration-damping clamping plate as described in any one of claims 1 to 2, characterized in that, The process includes the following steps: Step 1: Material pretreatment. Take the forging blank, grind the blank to remove surface impurities; Step 2: Heating the forging billet. The prepared blank material is placed in the heating furnace for heating. Step 3: Forging process. The heated blank is taken out and repeatedly hammered with a hydraulic press to make the structure compact and durable. Step 4: Tempering to improve toughness, the forged and compacted blank is placed back into the heating furnace for tempering; Step 5: Die forging. Take out the tempered blank and place it in the die cavity for pressing and shaping. Step Six: Trimming and Grinding. The shaped workpiece is chamfered and trimmed to remove surface burrs. Step 7: Surface treatment. Apply rust prevention treatment to the metal surface of the workpiece to prevent rust and corrosion.

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