Rubber chain connector, rubber chain segment, processing method of rubber chain segment and rubber chain

Abstract

The invention relates to the technical field of transmission devices, and provides a rubber chain connector, a rubber chain segment, a machining method of the rubber chain segment and a rubber chain. The rubber chain connector comprises a first connecting body, a second connecting body and a pin. The joint parts of the first connecting body and the second connecting body can be clamped and can be fixed through a pin; and a plurality of U-shaped grooves are formed in the connecting parts of the first connecting body and the second connecting body. The rubber chain connector is simple in structure, convenient to install and high in connector strength. The invention further provides a rubber chain segment and a rubber chain, the two ends of the rubber chain segment are connected with the first connecting body and the second connecting body respectively, and the rubber chain is formed after the multiple rubber chain segments are mutually connected. The rubber chain provided by the invention is convenient to use and easy to install, only the damaged chain section needs to be replaced after the rubber chain is damaged, the replacement is simple, and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission devices, and in particular to a rubber chain joint, a rubber chain segment and a processing method thereof, and a rubber chain. Background Art

[0002] Traditional chains are generally metal parts, which are linked together to form chain links or rings. They are mostly used for mechanical transmission and traction, and are widely used in various mechanical equipment. Traditional metal chains are linked together, and the joints can be handled by simple steel buckles. However, since the chain is made of metal, it is easy to rust. At the same time, it also requires frequent oiling, lubrication and maintenance, poor wear resistance, and high maintenance costs.

[0003] Rubber chain is a chain made of rubber material. Rubber chain is wear-resistant, elastic, not easy to rust, and does not require lubricating oil maintenance. However, the current rubber chain is usually connected by hot melt, and the joint strength can only reach 40% of the belt strength, or even lower, which cannot meet the use requirements. In addition, it is inconvenient to install on site, and the whole chain needs to be replaced if the joint is damaged, which is costly. Summary of the invention

[0004] In view of this, the present invention provides a rubber chain joint, a rubber chain segment and a processing method thereof, and a rubber chain. The rubber chain joint provided by the present invention is easy to install and has high joint strength. The rubber chain formed by connecting the rubber chain joint of the present invention is easy to install and use, and is easy to replace when damaged, with low cost.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] A rubber chain joint comprises a first connector, a second connector and a pin; the first connector and the second connector are both provided with a joint portion and a connecting portion; the joint portion of the first connector and the second connector is tooth-shaped, and pin holes are provided on the teeth; the joint portion of the first connector and the second connector can be engaged and can be fixed by a pin; the connecting portions of the first connector and the second connector are both provided with a plurality of U-shaped grooves.

[0007] Preferably, the rubber chain joint is also provided with a U-shaped inlaid buckle matching the U-shaped groove.

[0008] Preferably, the number of U-shaped grooves at the connection parts of the first connector and the second connector is ≥1; and the top of the U-shaped groove faces the joint part.

[0009] The present invention also provides a rubber segment, comprising a rubber segment matrix and a reinforcing member embedded in the rubber segment matrix; the reinforcing member comprises a reinforcing wire and a reinforcing buckle for fixing the reinforcing wire; the two ends of the rubber segment are respectively connected to the first connector and the second connector of the rubber chain joint of the above scheme through the reinforcing wire;

[0010] The reinforcing wire is connected to the first connector and the second connector in the following manner: one end of the reinforcing wire is bent into a U-shape and then inserted into the U-shaped groove of the first connector, and then passes through the reinforcing buckle in the reverse direction; the other end of the reinforcing wire is bent into a U-shape and then inserted into the U-shaped groove of the second connector, and then passes through the reinforcing buckle in the reverse direction.

[0011] Preferably, when the reinforcing wire is connected to the first connector and the second connector, a U-shaped inlaid buckle is used to fix the reinforcing wire in the U-shaped groove.

[0012] Preferably, the number of reinforcing wires in the rubber segment is ≥3, and the U-shaped grooves at corresponding positions of the first connector and the second connector form a pair, and each pair of U-shaped grooves is connected to a reinforcing wire; the reinforcing buckles are arranged at both ends of the reinforcing wire, and the number of reinforcing buckles at each end is ≥3.

[0013] Preferably, the reinforcing wire comprises steel wire, aramid core or glass fiber; the reinforcing buckle comprises a steel buckle or a nylon buckle;

[0014] The diameter of the reinforcing wire is 2.6-3.3 mm, and the strength is 9500-11500 N;

[0015] The material of the rubber segment matrix is ​​polyurethane.

[0016] The present invention also provides a method for processing the rubber segment described in the above scheme, comprising the following steps:

[0017] Pass the reinforcing wire through the reinforcing buckle, connect the reinforcing wire used for connecting the first connector and the second connector to the first connector and the second connector respectively, and then weld and fix the reinforcing buckle and compact it to obtain a reinforcing member connected with a joint;

[0018] The reinforcement member connected with the joint is placed in a mold, and then filled with a rubber preform, and demoulded after heat treatment to obtain the rubber segment.

[0019] Preferably, the compaction method is stamping or riveting; the heat treatment temperature is 180-200° C., and the insulation time is 10-20 min.

[0020] The present invention also provides a rubber chain, which is formed by connecting a plurality of rubber segments; the rubber segment is the rubber segment described in the above scheme or the rubber segment prepared by the preparation method described in the above scheme.

[0021] The present invention provides a rubber chain joint, comprising a first connector, a second connector and a pin; the first connector and the second connector are both provided with a joint part and a connection part; the joint part of the first connector and the second connector is toothed, and a pin hole is provided on the teeth; the joint part of the first connector and the second connector can be engaged and can be fixed by a pin; the connection parts of the first connector and the second connector are both provided with a U-shaped groove. The rubber chain joint provided by the present invention has a simple structure, is easy to install, and has a high joint strength; conventional rubber chains use a hot melt joint method, and the joint strength is only 8500N to 10000N, while the joint strength of the rubber chain joint of the present invention can reach more than 18000N.

[0022] The present invention also provides a rubber segment and a rubber chain; the two ends of the rubber segment of the present invention are respectively connected to the first connector and the second connector of the rubber chain joint described in the above scheme, and multiple rubber segments are connected to each other to form a rubber chain. The rubber segment provided by the present invention is easy to use, and can form a rubber chain after being connected with pins. It is easy to install, and only the damaged segment needs to be replaced after being damaged, which is simple to replace and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A stereogram of a rubber segment provided by the present invention;

[0024] Figure 2 A front view of the rubber segment provided by the present invention;

[0025] Figure 3 A three-dimensional diagram of the internal structure of the rubber segment provided by the present invention;

[0026] Figure 4 A front view of the internal structure of the rubber segment provided by the present invention;

[0027] Figure 5 A side view of the internal structure of the rubber segment provided by the present invention;

[0028] Figure 6 A bottom view of the internal structure of the rubber segment provided by the present invention;

[0029] Figure 7 A top view of the internal structure of the rubber segment provided by the present invention;

[0030] Figure 1 to Figure 7 Middle: 1-1-first connector, 1-2-second connector, 2-reinforcement buckle, 3-U-shaped inlaid buckle, 4-pin, 5-rubber matrix, 6-reinforcement wire. DETAILED DESCRIPTION

[0031] The present invention provides a rubber chain joint, comprising a first connector, a second connector and a pin; the first connector and the second connector are both provided with a joint portion and a connection portion; the joint portion of the first connector and the second connector is tooth-shaped, and pin holes are provided on the teeth; the joint portion of the first connector and the second connector can be engaged and can be fixed by a pin; the connection portions of the first connector and the second connector are both provided with a plurality of U-shaped grooves.

[0032] In the present invention, the rubber chain joint is further provided with a U-shaped inlay buckle matching the U-shaped groove, and specifically, each U-shaped groove is correspondingly provided with a U-shaped inlay buckle.

[0033] In a specific embodiment of the present invention, the number of U-shaped grooves at the connecting part of the first connector and the second connector is preferably ≥1, and the top of the U-shaped groove faces the joint part; when the number of U-shaped grooves is more than 2, the U-shaped grooves are arranged in parallel, and the distance between adjacent U-shaped grooves is preferably 25-30 mm, more preferably 25 mm; the distance between adjacent U-shaped grooves is calculated as the distance between the centers of adjacent U-shaped grooves; the depth of the U-shaped groove is preferably 3-4 mm, more preferably 3.5 mm; in a specific embodiment of the present invention, the U-shaped groove is used to embed the reinforcing wire in the rubber segment, which will be described in detail later.

[0034] In the present invention, the pin is preferably a steel through pin. In the present invention, the pin hole is used to insert and fix the pin.

[0035] In the present invention, the material of the rubber chain joint is preferably metal, more preferably iron.

[0036] The present invention provides a rubber segment, Figure 1 is a stereogram of the rubber segment, Figure 2 is a front view of the rubber segment; Figure 3 to Figure 7 They are respectively a stereoscopic view, a front view, a side view, a bottom view and a top view of the internal structure of the rubber segment provided by the present invention, Figure 1 to Figure 7 Middle: 1-1-first connector, 1-2-second connector, 2-reinforcement buckle, 3-U-shaped inlaid buckle, 4-pin, 5-rubber matrix, 6-reinforcement wire; below is combined Figure 1 to Figure 7 Provide detailed explanation.

[0037] In the present invention, the rubber segment includes a rubber segment matrix and a reinforcing member embedded in the rubber segment matrix; the reinforcing member includes a reinforcing wire and a reinforcing buckle for fixing the reinforcing wire; the two ends of the rubber segment are respectively connected to the first connector and the second connector of the rubber chain joint of the above scheme through the reinforcing wire;

[0038] The reinforcing wire is connected to the first connector and the second connector in the following manner: one end of the reinforcing wire is bent into a U-shape and then embedded in the U-shaped groove of the first connector, and then passes through the reinforcing buckle in the reverse direction, and the U-shaped groove is fixed with a U-shaped embedding buckle; the other end of the reinforcing wire is bent into a U-shape and then embedded in the U-shaped groove of the second connector, and then passes through the reinforcing buckle in the reverse direction.

[0039] In the present invention, when the reinforcing wire is connected to the first connector and the second connector, the reinforcing wire in the U-shaped groove is fixed by using a U-shaped inlay buckle.

[0040] In the present invention, the number of the reinforcing wires is preferably ≥3, and more preferably ≥6; specifically, when the number of U-shaped grooves on the first connector and the second connector is n, the number of reinforcing wires is preferably 3n; the U-shaped grooves at corresponding positions of the first connector and the second connector are a pair, and each pair of U-shaped grooves is connected to a reinforcing wire.

[0041] In a specific embodiment of the present invention, when the first connector and the second connector are both provided with two U-shaped grooves, the number of reinforcing wires in the rubber segment is preferably six, of which two reinforcing wires are connected to the first connector and the second connector; specifically, one end of the two reinforcing wires is respectively embedded in the two U-shaped grooves of the first connector, and the other end is respectively embedded in the two U-shaped grooves of the second connector. In the present invention, the reinforcing wires are preferably arranged in parallel.

[0042] In the present invention, the reinforcing buckle is a rectangular block, and a through hole is provided on the block. The through hole preferably includes a circular through hole and an elliptical through hole, wherein the number of the circular through holes is preferably 2, which are respectively arranged at positions close to both sides of the rectangular surface of the block, and the number of the elliptical blocks is 2, which are arranged between the two circular through holes; the elliptical through hole is specifically composed of a rectangular part and a semicircular part arranged at both ends of the rectangular part, as shown in Figure 6 shown.

[0043] In the present invention, the reinforcing buckles are arranged at both ends of the reinforcing wire, the number of reinforcing buckles at each end is preferably ≥3, the distance between adjacent reinforcing buckles is preferably 30-35 mm, more preferably 33 mm; the reinforcing buckles can increase the strength of the joint, and the strength of the joint can be increased by 5000-6000 N for each additional reinforcing buckle. When the number of reinforcing wires is six, the six reinforcing wires pass through the through holes of the reinforcing buckles respectively, and the elliptical through hole can pass through two reinforcing wires.

[0044] In a specific embodiment of the present invention, when the number of reinforcing wires is six and the number of reinforcing buckles at each end is three, the six reinforcing wires are arranged in parallel, and the reinforcing wires located on both sides are recorded as the outermost reinforcing wires; at this time, the specific method of connecting the reinforcing wires to the first connector and the second connector is preferably: one end of a reinforcing wire at the outermost edge of one side is passed through the circular through holes of the three reinforcing buckles, and then it is U-shaped bent and embedded in a U-shaped groove of the first connector, and then reversely passed through the elliptical through holes of the two reinforcing buckles, and the other end is embedded in a U-shaped groove of the second connector in the same way; the reinforcing wire at the outermost edge of the other side is connected to another U-shaped groove of the first connector and the second connector in the same way; the U-shaped groove parts are all fixed with U-shaped embedded buckles; among the remaining 4 reinforcing wires, two reinforcing wires pass through the elliptical through holes of the three reinforcing buckles in turn, and are located on the inner side of the two outermost reinforcing wires respectively; the other two reinforcing wires are located in the middle position and only pass through the elliptical through hole of one reinforcing buckle.

[0045] In the present invention, the reinforcing wire preferably includes steel wire, aramid core, glass fiber or stainless reinforcing wire; the reinforcing buckle preferably includes a steel buckle or a nylon buckle; the diameter of the reinforcing wire is preferably 2.6-3.3 mm, and the strength is preferably 9500-11500N.

[0046] In the present invention, the material of the rubber segment matrix is ​​preferably polyurethane; the present invention has no special requirements for the specific shape of the rubber matrix, and the shape of the rubber chain familiar to those skilled in the art can be adopted; in a specific embodiment of the present invention, the rubber connection matrix is ​​formed by arranging chain units, and the cross-section of each chain unit is composed of two isosceles trapezoids, the longer bottom sides of the two isosceles trapezoids fit each other, and the two sides of the isosceles trapezoid located on the lower side are arc-shaped. In a specific embodiment of the present invention, the rubber segment matrix specifically covers the reinforcement and the first connector and the second connector at both ends, and only the joint part of the first connector and the second connector with pin holes is exposed, so as to facilitate the subsequent connection of multiple rubber segments.

[0047] The present invention also provides a method for processing the rubber segment described in the above scheme, comprising the following steps:

[0048] Pass the reinforcing wire through the reinforcing buckle, connect the reinforcing wire used for connecting the first connector and the second connector to the first connector and the second connector respectively, and then weld and fix the reinforcing buckle and compact it to obtain a reinforcing member connected with a joint;

[0049] The reinforcement member connected with the joint is placed in a mold, and then filled with a rubber preform, and demoulded after heat treatment to obtain the rubber segment.

[0050] In the present invention, the manner in which the reinforcing wire is connected to the first connector and the second connector is the same as the above-mentioned scheme, which will not be repeated here; the welding method used for the welding fixation is preferably soldering, and the present invention fixes the reinforcing buckle by welding to prevent position changes; the compacting method is preferably stamping or riveting; the present invention compacts and fixes the reinforcing buckle by stamping or riveting, which can improve the strength of the rubber chain.

[0051] In the present invention, the rubber preform is preferably a polyurethane preform, the heat treatment temperature is preferably 180-200°C, and the insulation time is preferably 10-20 minutes; after the insulation is completed, it is preferably water-cooled and then demolded; the water cooling time is preferably 10 minutes; after the demolding, it is preferably also included to trim the obtained product.

[0052] The present invention also provides a rubber chain, which is formed by connecting a plurality of rubber segments; the rubber segments are the rubber segments described in the above scheme or the rubber segments prepared by the preparation method described in the above scheme; when the rubber segments are connected, specifically, the joint part of the first connector in one rubber segment and the joint part of the second connector in another rubber segment are engaged, and then fixed by pins, thereby forming the rubber chain.

[0053] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Example 1

[0055] In this embodiment, each chain link uses 6 steel wires, 3 steel buckles are set at each end of the steel wire, and 2 U-shaped grooves are set on the surface of the first connector and the second connector. The specific processing method is as follows:

[0056] according to Figure 3 to Figure 7 The steel wires are passed through the steel buckles in sequence; the outermost steel wires are bent in a U-shape and then embedded in the U-shaped grooves of the first connector and the second connector; after bending, the steel buckles are passed through in reverse sequence; the U-shaped embedded buckles are embedded in the U-shaped grooves to fix the steel wires and improve the strength.

[0057] After the steel buckles are evenly distributed according to the size of 33mm, they are fixed with soldering wire to prevent position changes.

[0058] After completing the above steps, use a punch or riveting method to compact and fix the steel buckle, clamp the steel wire, and improve the strength.

[0059] The semi-finished product is placed in a mold, and the polyurethane prefabricated block is filled into the mold. The mold is heated to 180° C., the mold temperature is maintained for 10 minutes, and the mold is demoulded after water cooling for 10 minutes. The obtained product is trimmed to obtain a rubber segment.

[0060] The joints of a plurality of rubber chain segments are engaged and fixed by pins to obtain a rubber chain.

[0061] After testing, the strength of the rubber chain joint prepared in this embodiment is above 18000N.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rubber chain joint, characterized in that: It includes a first connector, a second connector and a pin; the first connector and the second connector are both provided with a joint portion and a connection portion; the joint portion of the first connector and the second connector is tooth-shaped, and pin holes are provided on the teeth; the joint portion of the first connector and the second connector can be snapped together and can be fixed by a pin; the connection portions of the first connector and the second connector are both provided with a plurality of U-shaped grooves.

2. The rubber chain joint according to claim 1, characterized in that: The rubber chain joint is also provided with a U-shaped inlaid buckle matching the U-shaped groove.

3. The rubber chain joint according to claim 1, characterized in that: The number of U-shaped grooves at the connection part between the first connector and the second connector is ≥1; and the top of the U-shaped groove faces the connection part.

4. A rubber segment, characterized in that: It comprises a rubber segment matrix and a reinforcing member embedded in the rubber segment matrix; the reinforcing member comprises a reinforcing wire and a reinforcing buckle for fixing the reinforcing wire; the two ends of the rubber segment are respectively connected to the first connector and the second connector of the rubber chain joint according to claim 1 through the reinforcing wire; The reinforcing wire is connected to the first connector and the second connector in the following manner: one end of the reinforcing wire is bent into a U-shape and then inserted into the U-shaped groove of the first connector, and then passes through the reinforcing buckle in the reverse direction; the other end of the reinforcing wire is bent into a U-shape and then inserted into the U-shaped groove of the second connector, and then passes through the reinforcing buckle in the reverse direction.

5. The rubber segment according to claim 4, characterized in that: When the reinforcing wire is connected to the first connector and the second connector, the reinforcing wire in the U-shaped groove is fixed by using a U-shaped inlay buckle.

6. The rubber segment according to claim 4, characterized in that: The number of reinforcing wires in the rubber segment is ≥3, and the U-shaped grooves at corresponding positions of the first connector and the second connector form a pair, and each pair of U-shaped grooves is connected to a reinforcing wire; the reinforcing buckles are arranged at both ends of the reinforcing wire, and the number of reinforcing buckles at each end is ≥3.

7. The rubber segment according to claim 4, characterized in that: The reinforcing wire includes steel wire, aramid core or glass fiber; the reinforcing buckle includes steel buckle or nylon buckle; the diameter of the reinforcing wire is 2.6-3.3 mm, and the strength is 9500-11500N; the material of the rubber segment matrix is ​​polyurethane.

8. The method for processing the rubber segment according to any one of claims 3 to 7, characterized in that: The following steps are involved: Pass the reinforcing wire through the reinforcing buckle, connect the reinforcing wire used for connecting the first connector and the second connector to the first connector and the second connector respectively, and then weld and fix the reinforcing buckle and compact it to obtain a reinforcing member connected with a joint; The reinforcement member connected with the joint is placed in a mold, and then filled with a rubber preform, and demoulded after heat treatment to obtain the rubber segment.

9. The processing method according to claim 7, characterized in that: The compaction method is punching or riveting; the heat treatment temperature is 180-200° C., and the insulation time is 10-20 minutes.

10. A rubber chain formed by connecting a plurality of rubber segments; the rubber segment is the rubber segment according to any one of claims 3 to 7 or the rubber segment prepared by the preparation method according to any one of claims 8 to 9.

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