WO2019154058A1

WO2019154058A1 - Steel cable joint for cable-disk material conveyor, method of using same, and steel cable-disk conveying system

Info

Publication number: WO2019154058A1
Application number: PCT/CN2019/072595
Authority: WO
Inventors: 宋桂祥
Original assignee: 沧州市永高农牧机械科技有限公司
Priority date: 2018-02-12
Filing date: 2019-01-22
Publication date: 2019-08-15
Also published as: CN108278328A

Abstract

A steel cable joint for cable-disk material conveyor has a structure, comprising: a left connection portion (1); a right connection portion (2); an inner engagement sleeve (3); and an outer fastener sleeve (4). The left connection portion (1) and the right connection portion (2) are axial members and have internal conical cavities for receiving a steel cable inserted thereinto. A small opening end of the internal conical cavity is a distal end of the left connection portion (1). A large opening end of the internal conical cavity is a front end of the left connection portion (1). An outer circumferential surface of the front end of the left connection portion is a curved surface. The inner engagement sleeve (3) consists of two or more inner engagement sleeve segments capable of being connected in an axial direction to form a cylindrical sleeve. A left end of the cylindrical sleeve after connection is sleeved onto the front end of the left connection portion (1). A right end of the cylindrical sleeve is sleeved onto a front end of the right connection portion (2). A middle portion of the cylindrical sleeve is left empty, such that there is a gap between a front end surface of the left connection portion (1) and a front end surface of the right connection portion (2). The left end of the cylindrical sleeve has a curved inner surface fitting the curved front end surface of the left connection portion (1). The right end of the cylindrical sleeve has a curved inner surface fitting a spherical front end surface of the right connection portion (2). The outer fastener sleeve (4) is fastened around the inner engagement sleeve (3) to axially limit a position of the inner engagement sleeve (3).

Description

Plug-type cable joint for material conveying, method of use, and cable plug system for conveying

Technical field

The invention relates to the field of automatic conveying technology of agriculture and animal husbandry machinery and industrial chemical industry, in particular to a plug wire type cable joint for material transportation, a use method and a steel cable plug disk system for transportation.

Background technique

With the improvement of the degree of social development, the labor cost has become higher and higher, and the livestock breeding method has also been extensively integrated, grouped, intensive, high-quality, high-efficiency, from small farms and scattered farmers. The unmanned management of feeding and breeding operations has been transformed, and the requirements for automated farming equipment (feed conveying systems) have become higher and higher. However, the existing breeding equipment has a high failure rate and unstable operation state, which is not only difficult to maintain, but also has high maintenance costs, resulting in low comprehensive benefits, and is no longer suitable for the existing market demand. Therefore, the implementation of a high-quality, high-efficiency, high-stability, highly intelligent and automated feed delivery system is a major problem that needs to be solved in place of the existing complicated artificial feeding to achieve automatic livestock breeding. In the plug-in conveyor chain circulation system for feed transportation, the plug-type cable joint is one of the core components of the whole system and plays a vital role in the operation of the entire system. The entire feed delivery system has a total length of several hundred meters, circulating feed, and conveying about 2 tons of feed per hour. The whole system has more than a dozen turns. In actual operation, the corner will produce a large frictional resistance, plus The frictional resistance caused by the friction between the conveying pipe wall and the feed plug chain makes the internal frictional resistance of the whole system extremely large, and this huge frictional resistance will have a great influence on the comprehensive performance of the feed plug chain.

At present, most of the existing plug-type cable joints for transportation are directly inserted into the joints, and the steel cables are fixed to the joints by welding, and the fasteners are used to strengthen the joint strength between the steel cables and the joints. This connection method can not meet the requirements of 3000 kg pulling force. The tensile force can be generally about 500-1000 kg, and the conveying distance is generally not more than 200 m. When the steel cable plug has a large pulling force and a long conveying distance, the circulating system is used. Often, the steel cable is disconnected at the plug-in joint, causing the conveyor system to collapse. When the cable is disconnected for the above reasons, the disconnection position of the cable joint is not clear, and it takes a lot of manpower to find the cause and the disconnection position, thereby causing maintenance difficulties and seriously affecting the normal operation of the entire system, and emergency artificial feeding. The time is long and the intensity is high, and the damage caused to the company is immeasurable. In addition, the processing of the steel cable joint of such a structure requires a process such as punching and tapping, and a welding tool such as a welding machine is required at the system installation site, which causes inconvenience to the use.

Summary of the invention

The object of the present invention is to provide a cable-stayed cable joint, a method of use, and a steel cable plug system for transportation, which solve the problem that the joint strength of the steel cable joint is insufficient in the prior art and the joint is broken. .

The present invention is implemented as follows:

The plug-in cable joint for conveying of the present invention comprises:

a left connecting portion, the axial member is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the left connecting portion, the large end is the front end of the left connecting portion and the outer periphery of the front end The surface is a curved surface;

a right connecting portion, the axial member is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the right connecting portion, the large end is the front end of the right connecting portion and the outer periphery of the front end The surface is a curved surface;

The inner ferrule is composed of a two- or multi-valve inner ferrule body which can form a cylindrical sleeve body in the axial direction, and the left end of the cylindrical sleeve body formed after the merging is set at the front end of the left connecting portion, the right end The sleeve is disposed at the front end of the right connecting portion, and the middle portion is vacant such that a gap exists between the front end surface of the left connecting portion and the front end surface of the right connecting portion; the inner sleeve surface of the left end of the opposite cylindrical sleeve body is the left connecting portion The curved surface at which the front end surface meets, the inner sleeve surface at the right end is a curved surface that meets the front end surface of the right joint portion, and the outer ferrule sleeve is sleeved outside the inner inner ferrule in an axially restrained manner.

The method for using the plug-in cable joint of the present invention comprises the following steps:

a. The ends of the cable are respectively passed from the small end of the tapered inner cavity of the left connecting portion and the right connecting portion to the large end;

b. Spreading each wire at the end of the cable; then bonding the steel wires and the inner walls of the steel wire and the inner cavity of the tapered inner cavity together by an adhesive;

c. The left connecting portion and the right connecting portion are placed at opposite ends of the inner ferrule of the inner ferrule in a spaced and front end relative state, and then the other inner ferrule body and the first lobed inner card are inserted. The sleeve body is assembled to complete the installation of the inner ferrule;

d. The outer sleeve is sleeved on the inner sleeve of the inner sleeve in an axially restrained manner.

The steel cable plug system of the present invention comprises a steel cable and a plug fixed to the steel cable, the two ends of the cable are connected to the plug wire cable joint, wherein the plug wire cable The connectors include:

The inner ferrule is composed of a two- or multi-valve inner ferrule body which can form a cylindrical sleeve body in the axial direction, and the left end of the cylindrical sleeve body formed after the merging is set at the front end of the left connecting portion, the right end The sleeve is disposed at the front end of the right connecting portion, and the middle portion is vacant such that a gap exists between the front end surface of the left connecting portion and the front end surface of the right connecting portion; the inner sleeve surface of the left end of the opposite cylindrical sleeve body is the left connecting portion The curved surface at which the front end surface meets, the inner sleeve surface at the right end is a curved surface that matches the front end spherical surface of the right connecting portion, and the outer ferrule sleeve is sleeved outside the inner inner ferrule in an axially restrained manner.

In the steel cable plugging system for conveying, the two ends of the cable are connected to the plug-type cable joint in the following manner: each wire of the cable is spread out; and the steel wire is made of adhesive. The steel wire and the inner wall of the tapered inner cavity are bonded to each other.

Under the above technical solution, the present invention can be implemented as follows:

In the plug-in cable joint for conveying of the present invention, the tapered inner cavity is composed of two or more sections having different taper degrees, and a section having a larger or largest taper is located at the large end.

In the conveying plug type cable joint of the present invention, the inner surface of the outer ferrule is provided with an internal thread, and the inner ferrule is disposed to form an outer thread of the outer circumference of the cylindrical sleeve body, and the outer ferrule is screwed Connected to the outer card sleeve. In the plug-in cable joint for conveying of the present invention, the screw joint of the inner ferrule and the outer ferrule is coated with an adhesive.

In the plug-in cable joint for conveying of the present invention, the opposing faces of the inner ferrule body are coincident concave and convex faces. In the plug-in cable joint for conveying of the present invention, the inner surface of the tapered inner cavity is grooved.

In the plug-in cable joint for conveyance of the present invention, the curved surface is a spherical surface.

The outer ferrule is composed of two independent cylindrical sleeves, and the inner ferrule is provided with a reinforcing rib.

In the steel wire plug system for conveying, the tapered inner cavity is composed of two or more segments with different taper, and a section with a larger or largest taper is located at the big mouth end.

In the steel wire plug system for conveying, the outer ferrule and the inner ferrule are screwed.

In the steel cable plug system for conveying, the outer sleeve and the inner ferrule thread are coated with an adhesive.

In the steel wire plug system for conveying, the curved surface is a spherical surface.

The plug-type cable joint of the invention has simple structure and simple and convenient on-site connection operation. In addition, the overall tensile force that can withstand exceeds the breaking load of the steel cable by 3000 kg, that is, the breaking load of the joint designed by the present invention is already greater than the breaking load of the steel cable. When used, even if the steel cable is broken, the plug joint is not Will be destroyed. Moreover, due to its good bearing capacity, the radial or axial dimensions can be well adapted to the design requirements, so that even with a tensile force of more than 3,000 kg, excellent mechanical properties and product functions can be maintained.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a plug-type cable joint of the present invention.

Figure 2 is a schematic illustration of the plug-type cable joint of the present invention when it is inserted into the end of the cable.

3 is a schematic structural view of an inner ferrule, a first valve body and a second valve body in the plug-type cable joint of the present invention.

4 is an embodiment of a plug wire cable joint of the present invention.

Detailed ways

The invention will be further described with reference to the accompanying drawings, but this description does not limit the invention.

1, 2, and 3, the plug-type cable joint for conveying includes a left connecting portion 1, a right connecting portion 2, an inner ferrule 3, a first valve body 31, a second valve body 32, and an outer hoop. Set of 4.

Wherein, the left connecting portion 1 is an axial member and is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the left connecting portion, and the large end is the front end of the left connecting portion and the front end The outer peripheral surface is a curved surface.

The right connecting portion 2 is an axial member and is provided with a tapered inner cavity for threading the cable. The small end of the tapered inner cavity is the end of the right connecting portion, and the large end is the front end of the right connecting portion and the outer periphery of the front end The surface is a surface.

When the joint of the present invention is in use, the ends of the cable are respectively passed from the small end of the tapered inner cavity of the left connecting portion and the right connecting portion to the large end. Then, each wire of the cable ends is spread out; then the adhesive is used to bond the steel wires and the inner walls of the steel wire and the tapered inner cavity to each other; thus, compared with other connection methods such as welding The structure and the use method of the invention can greatly enhance the connection strength between the steel cable and the joint, so that the anti-off ability is remarkably improved. A better implementation of the present invention is that the tapered inner cavity of the left connecting portion and the right connecting portion is composed of two or more segments having different taper, and the larger or largest taper is located at the large end, with a single taper. Compared with the inner cavity structure, this design can further improve the pull-off strength. Further, in the present invention, the groove 21 may be formed on the inner surface of the tapered inner cavity, so that the adhesive enters the groove, and the anti-off ability can be further improved.

The inner ferrule 3 is composed of a two-lobed inner ferrule valve which can be combined into a cylindrical sleeve body in the axial direction, that is, a first valve body 31 and a second valve body 32 (shown in FIG. 3), and the combined cylindrical sleeve The left end of the body is set at the front end of the left connecting portion, the right end is set at the front end of the right connecting portion, and the middle portion is vacant so that there is a gap between the front end surface of the left connecting portion and the front end surface of the right connecting portion; The inner sleeve surface at the left end of the body is a curved surface that meets the spherical surface of the front end of the left connecting portion, and the inner sleeve surface at the right end is a curved surface that meets the spherical surface of the front end of the right connecting portion.

The curved surface in the left connecting portion, the right connecting portion and the inner ferrule may be a spherical surface, an ellipsoidal surface and other curved surfaces, so that the left connecting portion and the right connecting portion can be articulated in the inner ferrule to adapt to the wire winding. Various twisting and turning actions required during the line process, and the inner ferrule can also axially limit the left connecting portion and the right connecting portion, that is, the left connecting portion can be prevented from being pulled out to the left, and the right connecting portion can be prevented. The department pulled out to the right. Among the surfaces that can be selected, the spherical surface works best in achieving joint rotation.

The function of the outer cuff 4 is to hoop the petals of the inner ferrule to form a closed inner ferrule, and to achieve relative fixation of the outer ferrule and the inner ferrule in the axial position. Therefore, the outer cuff 4 can be of any structural design that achieves the above-described effects. Its shape can correspond to the shape of the plug to facilitate the toggle. One achievable way of the outer cuff 4 is to use a cylindrical casing and a nut. The outer cuff 4 can be fastened to the outer ferrule 3 by various fastening means known in the prior art, but should be capable of fixing the axial relative positions of the two. In the present invention, the outer cuff can be equal to the inner ferrule, or a length of the cylindrical sleeve shorter than the inner ferrule, and can be sleeved at any position on the inner ferrule.

An achievable connection between the outer cuff 4 and the inner ferrule 3 is that the inner sleeve of the outer ferrule 4 is provided with internal threads, and the first pleats 31 and the second lobes 32 are provided with external threads. The outer peripheral surface of the inner ferrule 3 formed after the two-inner ferrule body is formed to form an external thread adapted to the internal thread of the outer ferrule, so that the outer ferrule is screwed outside the inner ferrule. In the present invention, in order to improve the joint strength, the screw joints of the inner ferrule and the outer ferrule are coated with an adhesive. In this implementation manner, in order to facilitate the connection operation between the outer ferrule and the inner ferrule, an axial positioning hole 33 may be disposed on the axial end surface of the inner ferrule, and a radial positioning hole may be disposed on the outer circumferential surface of the outer ferrule 41, in order to facilitate the screwing operation.

As shown in FIG. 1 and FIG. 3, a preferred embodiment of the plug-in cable joint for conveying of the present invention is that the facing surface of the inner ferrule is a matching concave and convex surface, and the inner ferrule is opposite. The aligning lines formed along the axial direction at the same time are staggered and staggered, that is, after the inner ferrule 3 is manufactured in the form of one piece, after vacuum hardening treatment, the line is misaligned and cut from the intermediate position in the axial direction to form a basic equivalent. However, the two-lobed inner ferrules, that is, the first valve body 31 and the second valve body 32 (shown in FIGS. 1 and 3), which are staggered and intersected with each other, have a staggered structural design that improves the inner card. The ability to resist lateral pull reduces the lateral forces on the outer cuff and increases the tensile strength.

Referring to FIG. 4, in the present invention, the outer ferrule is not necessarily a complete sleeve, and may be two independent sleeves of two sections, respectively sleeved at the two ends of the inner ferrule, at this time, outside the inner ferrule The surface may be provided with a reinforcing rib. With this structure, the ferrule of the outer ferrule needs to avoid the rib. In the inner ferrule, the structural design of the rib is increased, and the tensile strength can be increased. Therefore, in the structural form, when the inner ferrule is misaligned, there is no need for multiple concave and convex structures, and only a pair of concave and convex structures can be used. Therefore, this structural design simplifies the cutting process.

For the present invention, the first valve body 31 and the second valve body 32 forming the inner ferrule 3 can have various forms, and all fall within the protection scope of the present invention. For example, the first valve body 31 and the second valve body 32 are not necessarily equivalent, and may be one large and one small, as long as they are combined to form a cylindrical sleeve.

In addition, the first valve body 31 and the second valve body 32 of the present invention do not have to be separated by a complete cylindrical sleeve, and may be separately manufactured, and both of them may be less than half a week of the inner ferrule flap. The body, that is, the mating, does not form a complete cylindrical casing. Specifically, when the two-in-one ferrule body is sleeved on the left connecting portion and the right connecting portion, a complete cylindrical sleeve is not formed, but the relative positioning is made by the threaded connection of the outer ferrule.

Furthermore, in the present invention, it is not necessary to form only two flaps for the inner ferrule, and the multi-valve can also be implemented.

When using the plug-type cable joint of the present invention, the following steps are performed:

c. The left connecting portion and the right connecting portion are placed at the two ends of the inner ferrule of the inner ferrule with the interval and the front end relative state, and then the ferrule of the other ferrule and the ferrule of the previous lobes Valve body alignment;

The steel cable plug system for conveying of the present invention comprises a steel cable and a plug fixed to the steel cable, the two ends of the cable are connected to the plug-type cable joint, and the plug-type cable joint comprises a left connecting portion, Right connection, inner ferrule and outer cuff. Wherein, the left connecting portion is an axial member and is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the left connecting portion, and the large end is the front end of the left connecting portion and the front end is The outer peripheral surface is a curved surface; the right connecting portion is an axial member and is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the right connecting portion, and the large end is the front end of the right connecting portion and The outer peripheral surface of the front end is a curved surface; the inner ferrule is composed of a two- or multi-valve inner ferrule body which can form a cylindrical sleeve body in the axial direction, and the left end set of the cylindrical sleeve body formed after the merging In the front end of the left connecting portion, the right end is set at the front end of the right connecting portion, and the middle portion is vacant so that a gap exists between the front end surface of the left connecting portion and the front end surface of the right connecting portion; the inner end of the opposite cylindrical sleeve is disposed at the left end The sleeve is a curved surface that meets the front end surface of the left connecting portion, and the inner sleeve surface at the right end is a curved surface that matches the front end spherical surface of the right connecting portion; the outer sleeve is sleeved in the axial direction Outside the card holder. In the steel cable plug system for conveying of the present invention, the two ends of the cable are preferably connected to the plug-type cable joint in the following manner: each wire of the cable is spread out; and the cable is made of adhesive. The wires and the steel wire and the inner wall of the tapered inner cavity are bonded to each other.

In the steel cable plug system for transport of the present invention, the tapered inner cavity of the left connecting portion and the right connecting portion is composed of two or more segments having different taper degrees, and a segment having a larger taper or a largest portion is located at the large mouth end.

In the steel cable plug system for conveying of the present invention, the outer ferrule and the inner ferrule are screwed.

In the steel wire plug system for conveying of the present invention, the interface between the outer ferrule and the inner ferrule is coated with an adhesive. In the steel wire plug system for transportation of the present invention, the curved surface described in the left connecting portion, the right connecting portion, and the inner ferrule is preferably a spherical surface.

Claims

A plug-type cable joint for conveying, comprising:

a left connecting portion, the axial member is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the left connecting portion, the large end is the front end of the left connecting portion and the outer periphery of the front end The surface is a curved surface;

a right connecting portion, the axial member is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the right connecting portion, the large end is the front end of the right connecting portion and the outer periphery of the front end The surface is a curved surface;

The inner ferrule is composed of a two- or multi-valve inner ferrule body which can form a cylindrical sleeve body in the axial direction, and the left end of the cylindrical sleeve body formed after the merging is set at the front end of the left connecting portion, the right end The sleeve is disposed at the front end of the right connecting portion, and the middle portion is vacant such that a gap exists between the front end surface of the left connecting portion and the front end surface of the right connecting portion; the inner sleeve surface of the left end of the opposite cylindrical sleeve body is the left connecting portion The curved surface at which the front end surface meets, the inner sleeve surface at the right end is a curved surface that meets the front end surface of the right joint portion, and the outer ferrule sleeve is sleeved outside the inner inner ferrule in an axially restrained manner.
The plug-in cable joint for conveying according to claim 1, wherein the tapered inner cavity is composed of two or more sections having different taper degrees, and a section having a larger or largest taper is located at the large end.
The plug-in cable joint for conveying according to claim 1, wherein an inner surface of the outer ferrule is provided with an internal thread, and the inner ferrule is disposed to be externally threaded to form an outer circumference of the cylindrical sleeve. The outer sleeve is screwed to the outside of the inner ferrule.
The plug-in cable joint for conveying according to claim 3, wherein the screw joint of the inner ferrule and the outer ferrule is coated with an adhesive.
The plug-in cable joint for conveying according to claim 1, wherein the opposing faces of the inner ferrules are coincident concave and convex faces.
The plug-in cable joint for conveying according to claim 1, wherein the inner surface of the tapered inner cavity is grooved.
The plug-in cable joint for conveying according to claim 1, wherein the curved surface is a spherical surface.
The plug-in cable joint for conveying according to claim 1, wherein the outer ferrule is composed of two independent cylindrical sleeves, and the inner ferrule is provided with a reinforcing rib.
A method of using a delivery plug wire cable joint according to any one of claims 1 to 8, characterized in that it comprises the steps of:

a. The ends of the cable are respectively passed from the small end of the tapered inner cavity of the left connecting portion and the right connecting portion to the large end;

b. Spreading each wire at the end of the cable; then bonding the steel wires and the inner walls of the steel wire and the inner cavity of the tapered inner cavity together by an adhesive;

c. The left connecting portion and the right connecting portion are placed at opposite ends of the inner ferrule of the inner ferrule in a spaced and front end relative state, and then the other inner ferrule body and the first lobed inner card are inserted. The sleeve body is assembled to complete the installation of the inner ferrule;

d. The outer sleeve is sleeved on the inner sleeve of the inner sleeve in an axially restrained manner.
A steel cable plug system for conveying, comprising a steel cable and a plug fixed to the steel cable, wherein the two ends of the cable are connected to the plug cable joint, wherein the plug Cable connectors include:

a left connecting portion, the axial member is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the left connecting portion, the large end is the front end of the left connecting portion and the outer periphery of the front end The surface is a curved surface;

a right connecting portion, the axial member is provided with a tapered inner cavity for threading the cable, the small end of the tapered inner cavity is the end of the right connecting portion, the large end is the front end of the right connecting portion and the outer periphery of the front end The surface is a curved surface;

The inner ferrule is composed of a two- or multi-valve inner ferrule body which can form a cylindrical sleeve body in the axial direction, and the left end of the cylindrical sleeve body formed after the merging is set at the front end of the left connecting portion, the right end The sleeve is disposed at the front end of the right connecting portion, and the middle portion is vacant such that a gap exists between the front end surface of the left connecting portion and the front end surface of the right connecting portion; the inner sleeve surface of the left end of the opposite cylindrical sleeve body is the left connecting portion The curved surface at which the front end surface meets, the inner sleeve surface at the right end is a curved surface that matches the front end spherical surface of the right connecting portion, and the outer ferrule sleeve is sleeved outside the inner inner ferrule in an axially restrained manner.
The steel cable plug system for conveying according to claim 10, wherein the two ends of the cable are connected to the plug cable joint in the following manner: each wire of the cable end is dispersed; The adhesive is then used to bond the steel cords and the steel cords to the inner walls of the tapered inner cavity.
The steel cable plug disk system according to claim 10, wherein the tapered inner cavity is composed of two or more segments having different taper degrees, and the larger or largest taper portion is located at the large mouth end.
The steel wire plug system for conveying according to claim 10, wherein the outer ferrule and the inner ferrule are screwed.
The steel wire plug system for conveying according to claim 10, wherein the outer cuff and the inner ferrule thread are coated with an adhesive.
The steel wire plug system for conveying according to claim 10, wherein the curved surface is a spherical surface.