Forging taper sleeve type bolt-free contact line positioning wire clamp for contact network

Abstract

The invention provides a forged taper sleeve type bolt-free contact line positioning wire clamp for an overhead line system, belongs to the technical field of flexible suspension equipment of an electrified railway overhead line system, and aims to solve the problems that a bolt is loosened during long-time actual operation and application of an existing railway contact line positioning wire clamp; and the structural design needs to be further improved. A positioning wire clamp body is a whole positioning wire clamp formed by combining and connecting a left semi-conical positioning clamp body and a right semi-conical positioning clamp body, a positioning pin is connected between the two positioning clamp bodies in an embedded mode, and V-shaped clamping mouths at the bottoms of the two positioning clamp bodies clamp, connect and tightly hold a contact wire. And conical limiting sleeves are embedded on the outer bodies of the two positioning clamp bodies, and a U-shaped fixing pin penetrates through the conical limiting sleeves to be tightly fixed. The whole structure is novel and practical, and is suitable for erecting and hanging contact lines in an electrified railway contact net system.

Description

Technical Field

[0001] The invention belongs to the technical field of flexible suspension equipment for an electrified railway contact network system, and in particular relates to a contact line positioning clamp for a contact network. Background Art

[0002] With the rapid development of electrified railway construction and technological progress, the technical requirements for the flexible suspension equipment of the electrified railway contact network system, especially the contact line positioning clamp, are becoming increasingly higher. Because the positioning clamp is used in the railway contact network system to connect and fix the contact line, and the contact line is distributed in a zigzag shape on both sides of the pantograph center. The positioning clamp is one of the key components of the electrified railway contact network system, and it has the characteristics of withstanding high-frequency vibrations. It is related to the operation safety and quality of the railway. The positioning clamps used in the existing railway contact network system mainly include U-shaped pin positioning clamps and pinless positioning clamps, and they mainly adopt a threaded pair fastening structure, with a large number of parts, a relatively complex structure, and cumbersome installation. In the actual use of high-speed electrified lines, failure problems may occur, such as the positioning clamp body breaking, the positioning clamp and the locator separation, etc.; For example, Chinese patent authorization announcement No. CN208602351U discloses a positioning clamp, which is composed of a positioning support component and an auxiliary positioning component used in conjunction with it. The positioning support component includes a positioning sleeve and a threading hole, and is symmetrically arranged The first and second positioning ear plates on both sides of the positioning sleeve; the auxiliary positioning assembly includes an arc-shaped clamping plate and a first auxiliary positioning ear plate and a second auxiliary positioning ear plate symmetrically arranged at both ends and used in conjunction with the first positioning ear plate and the second positioning ear plate respectively, and ear plate positioning holes are respectively provided, and the first positioning screw, the first positioning nut, the second positioning screw, and the second positioning nut are used in conjunction with them; but due to the limitations of its overall structure, especially the main use of the positioning screw and positioning nut connection structure, the threaded pair connection will be worn or even broken, and the bolts will loosen during long-term actual operation, thereby causing the contact line to be derailed, posing a serious safety hazard.

[0003] In order to adapt to the development and technological progress of flexible suspension equipment in electrified railway contact network systems, it is necessary to further improve and develop a new type of boltless contact wire positioning clamp for railway contact networks. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art and solve the problem that the existing railway contact line positioning wire clamp will cause the bolts to loosen during long-term actual operation, and the structural design needs to be further improved. The purpose of the present invention is to provide a new type of positioning wire clamp for contact network that is new and practical in overall structure, the entire positioning wire clamp is bolt-free, the overall connection is tight, there is no problem of bolt loosening, positioning wire clamp and contact wire loosening in actual operation, and it is easy to install and maintain, safe and convenient to use.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] A forged cone sleeve type boltless contact line positioning clamp for a contact network, wherein the positioning clamp body adopted by the invention is composed of a left semi-conical positioning clamp body, a right semi-conical positioning clamp body, a conical limiting position sleeve, a U-shaped fixing pin, and a positioning pin. The left semi-conical positioning clamp body and the right semi-conical positioning clamp body are matched with each other and combined to form a positioning clamp as a whole. The positioning pin is embedded in the middle of the two positioning clamp bodies, and the V-shaped clamping mouths at the bottom of the two positioning clamp bodies clamp and hold the contact line tightly. The conical limiting position sleeves are inserted on the outer bodies of the two positioning clamp bodies and are locked and fixed by passing through the U-shaped fixing pin.

[0007] The above-mentioned forged cone sleeve type boltless contact line positioning wire clamp for contact network, the left semi-conical positioning wire clamp body is respectively provided with left half clamp body docking interface spherical head bosses on the top of the left semi-conical positioning wire clamp body docking interface vertical surfaces on both sides of the vertical opening of the left semi-conical positioning wire clamp body, the lower part of the inner cavity surface of the left semi-conical positioning wire clamp body is provided with a groove for embedding the positioning pin of the left half clamp body, and the outer body of the left semi-conical positioning wire clamp body is provided with a groove for embedding the U-shaped fixing pin of the left half clamp body, the bottom of the left semi-conical positioning wire clamp body is provided with an extended left half clamp body clamp mouth joint seat, and the bottom of the left half clamp body clamp mouth joint seat is provided with a left half clamp body V-shaped clamp mouth.

[0008] The above-mentioned forged cone sleeve type boltless contact line positioning wire clamp for contact network, the right semi-conical positioning wire clamp body is respectively provided with right half clamp body docking interface ball head bosses on the top of the right semi-conical positioning wire clamp body docking interface vertical surface on both sides of the vertical opening of the right semi-conical positioning wire clamp body, the lower part of the inner cavity surface of the right semi-conical positioning wire clamp body is provided with a groove for embedding the positioning pin of the right half clamp body, and the outer body of the right semi-conical positioning wire clamp body is provided with a groove for embedding the U-shaped fixing pin of the right half clamp body, the bottom of the right semi-conical positioning wire clamp body is provided with an extended right half clamp body clamp mouth joint seat, and the bottom of the right half clamp body clamp mouth joint seat is provided with a right half clamp body V-shaped clamp mouth.

[0009] The above-mentioned forged cone-sleeve type boltless contact line positioning clamp for the contact network, the conical limiting sleeve is composed of a conical limiting sleeve inner groove for embedding a U-shaped fixing pin on the inner cavity of the conical limiting sleeve body, and circular through holes for passing the U-shaped fixing pin are respectively formed on the sleeve body of the conical limiting sleeve body at both ends of the inner groove.

[0010] The above-mentioned forged cone sleeve type boltless contact line positioning clamp for the contact network, the left semi-conical positioning clamp body and the right semi-conical positioning clamp body are symmetrically connected structures of the same structure, the cone inclination of the left semi-conical positioning clamp body and the right semi-conical positioning clamp body is 5.6~9.8°, and the inclination of the cone inner cavity surface of the conical limiting sleeve is the same as the cone inclination of the left semi-conical positioning clamp body 105 and the right semi-conical positioning clamp body, which is 5.6~9.8°.

[0011] When the present invention is used, according to design requirements and actual needs, the forged cone sleeve type boltless contact line positioning wire clamp for the contact network of the present invention is opened and connected to the contact line parallel to the track, and the position of the contact line is fixed in advance. Then, in conjunction with the positioner, the middle positioning pins of the left semi-conical positioning clamp body and the right semi-conical positioning clamp body are embedded, and conical limiting position sleeves are inserted on the outer bodies of the two positioning clamp bodies and are tightened and fixed by U-shaped fixing pins. Since the left semi-conical positioning clamp body, the right semi-conical positioning clamp body and the conical limiting position sleeves inserted therewith are all conical structures, and the grooves of the U-shaped fixing pins that are matched and embedded are made in the two positioning clamp bodies and the conical limiting position sleeves are tightly connected to each other, they are always in a tightly mutually clamped state during the actual operation process, and can achieve the practical application effect of not loosening.

[0012] Since the design of the present invention adopts the above-mentioned technical scheme, especially the use of two semi-conical positioning clamps that are aligned with each other into one body and connected and fixed by a conical limiting sleeve and a U-shaped fixing pin, it effectively solves the problem that the existing railway contact line positioning clamps will cause bolts to loosen during long-term actual operation and the structural design needs to be further improved. The actual test results show that it has a novel and practical overall structure, the entire positioning clamp has no bolts, the overall connection is tight, there is no problem of bolt loosening and positioning clamp and contact line loosening in actual operation, and it is easy to install and maintain, safe and convenient to use, etc., and is suitable for the railway contact network erection and suspension of contact lines.

[0013] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the specific structure of an embodiment of the present invention.

[0016] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the embodiment from the right.

[0017] Figure 3 yes Figure 2 An enlarged structural diagram of the positioning pin in the embodiment.

[0018] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of the conical limiting sleeve in the embodiment.

[0019] Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure of the left semi-conical positioning clamp in the embodiment.

[0020] Figure 6 yes Figure 2 A schematic top view of the U-shaped fixing pin in the embodiment.

[0021] Figure 7 yes Figure 2 An enlarged three-dimensional structural schematic diagram of the left semi-conical positioning clamp in the embodiment.

[0022] Figure 8 yes Figure 2 An enlarged three-dimensional structural schematic diagram of the right semi-conical positioning clamp in the embodiment.

[0023] Fig. 9 Figure 2 An enlarged three-dimensional structural schematic diagram of the conical limiting sleeve in the embodiment.

[0024] Fig.10 yes Figure 1 AA-direction enlarged cross-sectional structural schematic diagram of the embodiment.

[0025] The numbers in the attached drawings are: 1-left semi-conical positioning clamp; 101-ball head boss of the left half clamp interface; 102-groove of the left half clamp for connecting the U-shaped fixing pin; 103-groove of the left half clamp for connecting the positioning pin; 104-vertical surface of the left semi-conical positioning clamp body for connecting the interface; 105-left semi-conical positioning clamp body; 106-clamp mouth joint of the left half clamp; 107-V-shaped clamp mouth of the left half clamp; 2-right semi-conical positioning clamp; 201-ball head boss of the right half clamp interface; 202-right half clamp Groove for embedding U-shaped fixing pin; 203-groove for embedding positioning pin in the right half clamp body; 204-vertical surface of the right semi-conical positioning clamp body docking interface; 205-right semi-conical positioning clamp body; 206-right half clamp body clamp mouth joint seat; 207-right half clamp body V-shaped clamp mouth; 3-conical limiting position sleeve; 301-conical limiting position sleeve body; 302-inner groove of conical limiting position sleeve; 303-round through hole for passing the fixing pin of conical limiting position sleeve; 4-U-shaped fixing pin; 5-contact line; 6-positioning pin. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top", "bottom", "front end", "rear end", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0028] Example 1

[0029] As attached Figure 1-Figure 10 As shown, the main body of the positioning wire clamp of this embodiment is composed of a left semi-conical positioning clamp body 1, a right semi-conical positioning clamp body 2, a conical limiting position sleeve 3, a U-shaped fixing pin 4, and a positioning pin 6. The left semi-conical positioning clamp body 1 and the right semi-conical positioning clamp body 2 are matched with each other to form a positioning wire clamp as a whole. The positioning pin 6 is embedded in the middle of the two positioning clamp bodies, and the V-shaped clamping mouths at the bottom of the two positioning clamp bodies clamp and hold the contact line 5 tightly. The conical limiting position sleeve 3 is inserted on the outer body of the two positioning clamp bodies and is locked and fixed by the U-shaped fixing pin 4.

[0030] Example 2

[0031] Preferably, see the attached Figure 1-2 , Figure 5 , Figure 7 , Fig.10 The left semi-conical positioning clamp body 1 described in this embodiment is respectively provided with left half clamp body docking interface ball head bosses 101 on the top of the left semi-conical positioning clamp body docking interface facade 104 on both sides of the vertical opening of the left semi-conical positioning clamp body 105, a groove 103 for embedding the left half clamp body positioning pin is formed on the lower part of the inner cavity surface of the left semi-conical positioning clamp body 105, and a groove 102 for embedding the left half clamp body U-shaped fixing pin is formed on the outer body of the left semi-conical positioning clamp body 105, an extended left half clamp body clamp mouth joint seat 106 is formed at the bottom of the left semi-conical positioning clamp body 105, and a left half clamp body V-shaped clamp mouth 107 is formed at the bottom of the left half clamp body clamp mouth joint seat 106.

[0032] Example 3

[0033] For example, see the attached Figure 1-Figure 2 , Figure 8 , Fig.10 The right semi-conical positioning clamp body 2 described in this embodiment is respectively provided with right half clamp body docking interface ball head bosses 202 on the top of the right semi-conical positioning clamp body docking interface facade 204 on both sides of the vertical opening of the right semi-conical positioning clamp body 205, a groove 203 for embedding the right half clamp body positioning pin is formed on the lower part of the inner cavity surface of the right semi-conical positioning clamp body 205, and a groove 202 for embedding the right half clamp body U-shaped fixing pin is formed on the outer body of the right semi-conical positioning clamp body 205, an extended right half clamp body clamp mouth joint seat 206 is formed at the bottom of the right semi-conical positioning clamp body 205, and a right half clamp body V-shaped clamp mouth 207 is formed at the bottom of the right half clamp body clamp mouth joint seat 206.

[0034] Example 4

[0035] For details, see the attached Figure 1-Figure 2 , Figure 4 , Figure 9-10 The conical limiting position sleeve described in this embodiment is composed of a conical limiting position sleeve inner groove 302 for embedding a U-shaped fixing pin on the inner cavity of the conical limiting position sleeve body 301, and circular through holes 303 for passing the U-shaped fixing pin are respectively formed on the sleeve body of the conical limiting position sleeve body 301 at both ends of the sleeve inner groove.

[0036] Example 5

[0037] For further details, see the attached Figure 4-5 , Figure 7-Figure 8 , Fig.10In this embodiment, the left semi-conical positioning clamp body 1 and the right semi-conical positioning clamp body 2 are symmetrically connected structures of the same structure. The cone inclination a of the left semi-conical positioning wire clamp body 105 and the right semi-conical positioning wire clamp body 205 is 6.2°, and the conical limiting position sleeve 3 is a trumpet-shaped body with a cone inclination a01 of 6.2°.

[0038] For more details, see Figure 1-Figure 2 The left semi-conical positioning clamp 1, the right semi-conical positioning clamp 2, the conical limiting sleeve 3, the U-shaped fixing pin 4 and the positioning pin 6 described in this embodiment are all structures formed by copper alloy forging process.

[0039] The above is only one embodiment. On this basis, other technical features and technical solutions derived by adding components, equivalent substitutions and local improvements without creative work by technicians in this field are all within the scope of protection of the patent of this invention.

Claims

1. A forged cone sleeve type boltless contact line positioning clamp for contact network, comprising a positioning clamp body, characterized in that: The main body of the positioning wire clamp is composed of a left semi-conical positioning clamp body (1), a right semi-conical positioning clamp body (2), a conical limiting position sleeve (3), a U-shaped fixing pin (4), and a positioning pin (6). The left semi-conical positioning clamp body (1) and the right semi-conical positioning clamp body (2) are mutually matched and assembled to form a positioning wire clamp as a whole. The positioning pin (6) is embedded in the middle of the two positioning clamp bodies, and the V-shaped clamping mouths at the bottom of the two positioning clamp bodies clamp and hold the contact line (5) tightly. The conical limiting position sleeves (3) are inserted on the outer bodies of the two positioning clamp bodies and are locked and fixed by the U-shaped fixing pin (4).

2. A forged cone sleeve type boltless contact line positioning clamp for contact network as claimed in claim 1, characterized in that: The left semi-conical positioning clamp body (1) is provided with left half clamp body docking interface ball head bosses (101) on the top of the left semi-conical positioning clamp body docking interface vertical surface (104) on both sides of the vertical opening of the left semi-conical positioning clamp body (105), a groove (103) for embedding a positioning pin of the left half clamp body is formed at the lower part of the inner cavity surface of the left semi-conical positioning clamp body (105), and a groove (102) for embedding a U-shaped fixing pin of the left half clamp body is formed on the outer body of the left semi-conical positioning clamp body (105), an extended left half clamp body clamp mouth joint seat (106) is formed at the bottom of the left semi-conical positioning clamp body (105), and a left half clamp body V-shaped clamp mouth (107) is formed at the bottom of the left half clamp body clamp mouth joint seat (106).

3. A forged cone sleeve type boltless contact line positioning clamp for contact network as claimed in claim 1, characterized in that: The right semi-conical positioning clamp body (2) is provided with right half clamp body docking interface ball head bosses (202) on the top of the right semi-conical positioning clamp body docking interface vertical surface (204) on both sides of the vertical opening of the right semi-conical positioning clamp body (205), a groove (203) for embedding a positioning pin of the right half clamp body is formed at the lower part of the inner cavity surface of the right semi-conical positioning clamp body (205), and a groove (202) for embedding a U-shaped fixing pin of the right half clamp body is formed on the outer body of the right semi-conical positioning clamp body (205), an extended right half clamp body clamping mouth joint seat (206) is formed at the bottom of the right semi-conical positioning clamp body (205), and a right half clamp body V-shaped clamping mouth (207) is formed at the bottom of the right half clamp body clamping mouth joint seat (206).

4. A forged cone sleeve type boltless contact line positioning clamp for contact network as claimed in claim 1, characterized in that: The conical limiting sleeve is composed of a conical limiting sleeve inner groove (302) for inserting a U-shaped fixing pin on the inner cavity of the conical limiting sleeve body (301), and circular through holes (303) for inserting a U-shaped fixing pin on the sleeve body of the conical limiting sleeve body (301) at both ends of the sleeve inner groove.

5. A forged cone sleeve type boltless contact line positioning clamp for contact network as claimed in claim 1, characterized in that: The left semi-conical positioning clamp body (1) and the right semi-conical positioning clamp body (2) are symmetrically connected structures of the same structure. The cone inclination (a) of the left semi-conical positioning wire clamp body (105) and the right semi-conical positioning wire clamp body (205) is 5.6 to 9.8°. The cone inner cavity surface inclination of the conical limiting sleeve (3) is the same as the cone inclination of the left semi-conical positioning wire clamp body (105) and the right semi-conical positioning wire clamp body (205), which is (a01) 5.6 to 9.8°.

6. A forged cone sleeve type boltless contact line positioning clamp for contact network as claimed in claim 1, characterized in that: The left semi-conical positioning clamp (1), the right semi-conical positioning clamp (2), the conical limiting sleeve (3), the U-shaped fixing pin (4) and the positioning pin (6) are all structures formed by a copper alloy forging process.

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