Combined type carrier cable seat

Abstract

The utility model relates to a combined type carrier cable seat which comprises a connecting base, a connecting double-lug and a cable supporting clamp, one side of the connecting base is hinged to one side of the connecting double-lug, the other side of the connecting base is fixed to the other side of the connecting double-lug through a fastening bolt, and a clamping block is arranged in the center of the outer arc face of the connecting base. A clamping hole corresponding to the clamping block in shape is formed in the center of the wire supporting clamp, the connecting base is clamped into the clamping hole through the clamping block and then rotates by 90 degrees to be fixedly connected with the wire supporting clamp, the carrier cable is arranged in the wire supporting clamp, and a pressing plate for pressing the carrier cable is fixedly connected to the wire supporting clamp. The connecting base and the connecting double lugs are fixedly connected through the fastening bolts, the number of types of carrier cable seats can be reduced, and the connecting strength and reliability of the assembly are improved; the die forging process reduces the existence of shrinkage cavities and segregation of the part blank, and is beneficial to improving the mechanical property of the product; the clamping blocks are clamped into the clamping holes to achieve fixed connection between the connecting base and the wire supporting clamp, the electric arc radiation phenomenon in the use process of the contact network can be reduced, and stable operation of the contact network is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electrified railway contact network, in particular to a combined load-bearing cable seat. Background Art

[0002] The catenary is an important conductor that plays the dual role of transmitting electricity and suspending locomotive slideways. Due to the special operating conditions and environment of the railway, the performance requirements of the catenary are also very high. The catenary is required to have strong conductivity and good current-carrying properties.

[0003] The load-bearing cable seat is used to support the load-bearing cable, which is installed at the support and fixing position of the flat arm and the oblique arm of the contact network. The conventional load-bearing cable seat structure is mainly composed of a connecting base, connecting ears, a wire support clamp and a pressure plate. The connecting base and the connecting ears are hinged on one side and fixed with a fastening shaft on the other side. The connecting base and the connecting ears form a circular opening and closing structure. The load-bearing cable seat is installed on the flat arm through the opening and closing structure. The wire support clamp is installed on the connecting base through the shaft hole. The pressure plate presses the load-bearing cable tightly against the wire support clamp.

[0004] The load-bearing cable seat based on the above structure has different specifications of load-bearing cables, so it is necessary to equip load-bearing cable seats of various specifications accordingly, resulting in a large number of product types; secondly, the connection method between the wire support clamp and the connecting base adopts an axial hole matching connection method, which can easily cause arc radiation between the load-bearing cable and the base, thereby affecting the normal operation of the contact network. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a combined load-bearing cable seat.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a combined load-bearing cable seat, including a connecting base, connecting ears and a wire supporting clamp, one side of the connecting base is hinged to one side of the connecting ears, and the other side of the connecting base is fixed to the other side of the connecting ears by fastening bolts, a clamping block is provided at the center of the outer arc surface of the connecting base, and a clamping hole corresponding to the shape of the clamping block is provided at the center position of the wire supporting clamp, the connecting base is inserted into the clamping hole through the clamping block and then rotated ninety degrees to be fixed to the wire supporting clamp, the load-bearing cable is placed in the wire supporting clamp, and a pressure plate for pressing the load-bearing cable is fixed to the wire supporting clamp.

[0007] Specifically, the inner side of the wire support clamp is provided with two parallel lower arc-shaped wire grooves, and the inner side of the pressure plate opposite to the wire support clamp is provided with two parallel upper arc-shaped wire grooves, and the load-bearing cable is located in the arc-shaped cavity formed by the lower arc-shaped wire grooves and the upper arc-shaped wire grooves.

[0008] Furthermore, one side of the connecting base and one side of the connecting ears are hinged by a flanging rivet, and the other side of the connecting base and the other side of the connecting ears are fixed by two fastening bolts.

[0009] Furthermore, the center of the outer arc surface of the connecting base has an integral truncated cone body, and the clamping block includes a cylinder arranged at the center of the end face of the truncated cone body, and at least one protrusion is provided on the side surface of the upper end of the cylinder.

[0010] Preferably, the side surface of the upper end of the cylinder is provided with two protrusions which are symmetrical with respect to the center of the cylinder, and the upper planes of the protrusions are flush with the upper plane of the cylinder.

[0011] Furthermore, the clamping hole includes an arc hole, and the openings at both ends of the arc hole are respectively connected to rectangular slot holes, the arc hole is clearance-matched with the cylinder, and the rectangular slot hole is clearance-matched with the protrusion.

[0012] The beneficial effects of the utility model are as follows: the utility model uses two fastening bolts to fix the connecting base and the connecting ears, which can reduce the number of types of load-bearing cable seats, reduce the overall quality of the components, and improve the connection strength and reliability of the components; the die forging process is adopted to reduce the existence of shrinkage holes and segregation in the part blank, which is beneficial to improving the mechanical properties of the product; the card block is used to be inserted into the card hole to realize the fixed connection between the connecting base and the wire support clamp, reducing the gap between the main body, thereby reducing the arc radiation phenomenon during the use of the contact network and ensuring the stable operation of the contact network. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the connecting base of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the wire supporting clamp of the utility model.

[0017] In the figure: 1. Connecting base, 2. Connecting ears, 3. Wire support clamp, 4. Fastening bolt, 5. Clamping block, 5-1. Cylinder, 5-2. Protrusion, 6. Clamping hole, 6-1. Arc hole, 6-2. Rectangular slot, 7. Load-bearing cable, 8. Pressure plate, 9. Flanged rivet, 10. Cone. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0019] like Figure 1The combined load-bearing cable seat shown is used to support the load-bearing cable used in the contact network and is installed at the supporting and fixing position between the flat arm and the oblique arm of the arm structure used in the contact network.

[0020] The load-bearing cable seat includes a connecting base 1, connecting ears 2, a wire support clamp 3 and a pressure plate 8 made by a die forging process, wherein the connecting base 1 is arc-shaped, and has an integral truncated cone body 10 at the center of the outer arc surface of the connecting base. The connecting ears 2 are also arc-shaped, and two spaced-apart support ears are provided on the outer arc surface of the connecting ears 2. The two support ears of the connecting ears 2 are connected to the oblique wrist arm and are fixed and disassembled by inserting a cotter pin and cooperating with a pin.

[0021] One side of the connecting base 1 and one side of the connecting ears 2 are hinged by a flanging rivet 9, and the other side of the connecting base 1 and the other side of the connecting ears 2 are fixed by two fastening bolts 4. The inner arc surface of the connecting base 1 and the inner arc surface of the connecting ears 2 form an opening and closing structure for installing the load-bearing cable seat on the flat wrist arm.

[0022] The pressure plate 8 is fixed to the wire supporting clamp 3 by two bolts, wherein the inner side surface of the wire supporting clamp 3 is provided with two lower arc-shaped wire grooves parallel to each other, and the inner side surface of the pressure plate 8 opposite to the wire supporting clamp 3 is provided with two upper arc-shaped wire grooves parallel to each other. Each lower arc-shaped wire groove and the corresponding upper arc-shaped wire groove form an arc-shaped cavity. The bearing cable 7 is wrapped with an aluminum-copper liner and placed in the arc-shaped cavity on one side, and another section of the bearing cable 7 is arranged in the arc-shaped cavity on the other side to ensure that the stress generated by the tightening of the bolts is in a balanced state.

[0023] like Figure 2 、 Figure 3 As shown, a clamping block 5 is provided on the frustum 10 located at the center of the outer arc surface of the connecting base 1, and the clamping block 5 includes a cylinder 5-1 located at the center of the end face of the frustum 10, and the upper side surface of the cylinder 5-1 is provided with two protrusions 5-2 that are symmetrical with respect to the center of the cylinder 5-1, and the upper plane of the protrusion 5-2 is flush with the upper plane of the cylinder 5-1; a clamping hole 6 corresponding to the shape of the clamping block 5 is provided at the center position of the wire supporting clamp 3, and the clamping hole 6 includes an arc hole 6-1, and the openings at both ends of the arc hole 6-1 are respectively connected to rectangular slots 6-2, and the arc hole 6-1 is loosely matched with the cylinder 5-1, and the rectangular slot 6-2 is loosely matched with the protrusion 5-2; in this way, when fixing the connecting base 1 and the wire supporting clamp 3, it is only necessary to clamp the clamping block 5 into the clamping hole 6 and then rotate it ninety degrees to fix the connecting base 1 and the wire supporting clamp 3.

[0024] The utility model adopts two fastening bolts 4 to fix the connecting base and the connecting ears, which can reduce the number of types of load-bearing cable seats, reduce the overall quality of the components, and improve the connection strength and reliability of the components; adopts the die forging process to reduce the existence of shrinkage holes and segregation of the part blank, which is beneficial to improving the mechanical properties of the product; adopts the clamping block 5 to clamp into the clamping hole 6 to realize the fixed connection between the connecting base 1 and the wire supporting clamp 3, reduces the gap between the wire supporting clamp 3 and the connecting base 1, reduces the arc radiation phenomenon during the use of the contact network, and ensures the stable operation of the contact network.

[0025] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A combined load-bearing cable seat, comprising a connecting base (1), connecting ears (2) and a wire support clamp (3), characterized in that: One side of the connecting base (1) is hinged to one side of the connecting ears (2), and the other side of the connecting base (1) is fixed to the other side of the connecting ears (2) by a fastening bolt (4). A clamping block (5) is provided at the center of the outer arc surface of the connecting base (1). The center of the outer arc surface of the connecting base (1) has a frustum (10) of an integral structure. The clamping block (5) includes a cylinder (5-1) provided at the center of the end face of the frustum (10), and at least one protrusion (5-2) is provided on the side surface of the upper end of the cylinder (5-1); The center of the wire support clamp (3) is provided with a clamping hole (6) corresponding to the shape of the clamping block (5), the clamping hole (6) comprises a circular arc hole (6-1), the openings at both ends of the circular arc hole (6-1) are respectively connected to rectangular slots (6-2), the circular arc hole (6-1) is clearance-matched with the cylinder (5-1), and the rectangular slot (6-2) is clearance-matched with the protrusion (5-2); The connecting base (1) is inserted into the clamping hole (6) through the clamping block (5) and then rotated ninety degrees to be fixedly connected to the wire supporting clamp (3). The load-bearing cable (7) is placed in the wire supporting clamp (3). A pressure plate (8) for pressing the load-bearing cable (7) is fixedly connected to the wire supporting clamp (3).

2. The combined cable support seat according to claim 1, wherein: The inner side surface of the wire support clamp (3) is provided with two mutually parallel lower arc-shaped wire grooves, and the inner side surface of the pressure plate (8) opposite to the wire support clamp (3) is provided with two mutually parallel upper arc-shaped wire grooves, and the load-bearing cable (7) is located in the arc-shaped cavity formed by the lower arc-shaped wire grooves and the upper arc-shaped wire grooves.

3. The combined cable support seat according to claim 1, wherein: One side of the connecting base (1) and one side of the connecting ears (2) are hinged via a flanging rivet (9), and the other side of the connecting base (1) and the other side of the connecting ears (2) are fixed via two fastening bolts (4).

4. The combined cable support seat according to claim 1, wherein: The upper side surface of the cylinder (5-1) is provided with two protrusions (5-2) symmetrical with respect to the center of the cylinder (5-1), and the upper planes of the protrusions (5-2) are flush with the upper plane of the cylinder (5-1).

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