Jackscrew type forged and riveted carrier cable seat

Abstract

A jackscrew type forging riveting type carrier cable seat comprises an upper hoop, a lower hoop, a cable supporting clamp, a pressing block and a step bolt, and the cable supporting clamp and the pressing block are installed above the upper hoop through the step bolt; a connecting double-lug is axially arranged below the lower hoop; first hinge lugs are symmetrically arranged on the two sides of the upper hoop, second hinge lugs are symmetrically arranged on the two sides of the lower hoop, and the first hinge lugs and the second hinge lugs are riveted together through pin shafts. Inner threaded holes are symmetrically formed in the two ends of the lower hoop body, puller bolts are installed in the inner threaded holes, the puller bolts are sleeved with locknuts, and the locknuts are located on the outer side of the lower hoop body. According to the utility model, a riveting type hoop structure is adopted, and the lower hoop and the flat cantilever are fixed by arranging the puller bolt, so that the potential safety hazard that the carrier cable seat rotates around the flat cantilever due to loose connection of a holding bolt in the prior art is overcome, the use requirement of a high-speed electrified railway with the speed of more than 250km / h is met, the number of fasteners is reduced, and the cost is reduced. And the installation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of manufacturing parts for electrified railway contact network, and in particular relates to a top-thread forged riveted load-bearing cable seat. Background Art

[0002] In the contact network of electrified railways, the load-bearing cable seats are used to suspend the load-bearing cables and fix the flat wrist arms. At present, the load-bearing cable seats mainly include cast aluminum alloy load-bearing cable seats and forged steel load-bearing cable seats. When used online, there are safety hazards due to the defects of shrinkage, shrinkage holes, air entrapment and inclusions inside the cast aluminum alloy load-bearing cable seats; the forged steel load-bearing cable seats have a large number of parts and fasteners, and the construction and installation are cumbersome, which is not conducive to shortening the construction and maintenance time; in particular, the above two types of load-bearing cable seats are fixed to the flat wrist arms by bolts, and there is a safety hazard that the bolt connection loosens and causes the load-bearing cable seats to rotate around the flat wrist arms. Therefore, they are only suitable for use on electrified railways with speeds of 250km / h and below. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a top-thread forged riveted load-bearing cable seat.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0005] 1. A top-thread forged riveted load-bearing cable seat, comprising an upper hoop, a lower hoop, a wire support clamp, a pressure block and a step bolt, wherein the wire support clamp and the pressure block are installed above the upper hoop through the step bolt; a connecting double ear is axially arranged below the lower hoop; first hinged ears are symmetrically arranged on both sides of the upper hoop, and second hinged ears are symmetrically arranged on both sides of the lower hoop, and the first hinged ears and the second hinged ears are riveted together through a pin shaft; internal threaded holes are symmetrically arranged at both ends of the lower hoop, and a tightening bolt is installed in the internal threaded hole, and a locking nut is mounted on the tightening bolt, and the locking nut is located on the outer side of the lower hoop.

[0006] Furthermore, each of the first hinged ears and the second hinged ears is provided in a pair, and the two pairs of hinged ears are arranged alternately.

[0007] Furthermore, the bottoms of the concave arc surfaces of the upper clamp and the lower clamp are symmetrical inclined surfaces on both sides.

[0008] Furthermore, a step hole is provided on the top of the upper clamp, a first anti-rotation plane is provided on one side of the center hole of the wire support clamp, and a second anti-rotation plane is provided on one side of the middle of the step bolt; the step bolt passes through the step hole and the center hole of the wire support clamp and the pressure block from bottom to top and is fastened to the set nut, so that the first anti-rotation plane and the second anti-rotation plane are fitted together.

[0009] Beneficial effects of the utility model:

[0010] 1. The utility model adopts a riveted clamp structure, and fixes the lower clamp to the flat wrist arm by setting a tightening bolt, which overcomes the safety hazard of the prior art that the load-bearing cable seat rotates around the flat wrist arm due to the loose connection of the tightening bolt, meets the use requirements of high-speed electrified railways with a speed of more than 250km / h, reduces the number of fasteners, and improves installation efficiency.

[0011] 2. The utility model forms a wedge-shaped structure by arranging a pair of inclined surfaces on the concave arc surfaces of the upper and lower clamps, which cooperates with the tightening bolts and the anti-loosening nuts to lock the upper clamp on the flat wrist arm to ensure that the load-bearing cable seat does not rotate around the flat wrist arm.

[0012] 3. An anti-rotation plane is provided between the step bolt and the wire support clamp of the utility model to prevent the wire support clamp from rotating and causing the load-bearing cable to twist.

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the upper clamp and the lower clamp of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the wire support clamp of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the step bolt of the utility model.

[0019] Figure symbols: upper clamp 1, first hinged ear 1-1, step hole 1-2, lower clamp 2, second hinged ear 2-1, internal threaded hole 2-2, connecting ears 2-3, wire support clamp 3, first anti-rotation plane 3-1, pressure block 4, step bolt 5, second anti-rotation plane 5-1, pin 6, tightening bolt 7, anti-loosening nut 8, inclined surface 9, set nut 10, wrist arm tube 11, semicircular tube gasket 12. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-5 The utility model is further described in detail with specific embodiments, but the implementation methods of the utility model are not limited thereto.

[0021] A top-thread forged riveted load-bearing cable seat comprises an upper hoop 1, a lower hoop 2, a wire support clamp 3, a pressure block 4 and a step bolt 5, wherein the wire support clamp 3 and the pressure block 4 are installed on the upper side of the upper hoop 1 through the step bolt 5; a connecting double ear 2-3 is axially provided below the lower hoop 2; first hinged ears 1-1 are symmetrically provided on both sides of the upper hoop 1, and second hinged ears 2-1 are symmetrically provided on both sides of the lower hoop 2, and the first hinged ears 1-1 and the second hinged ears 2-1 are riveted together through a pin 6; internal threaded holes 2-2 are symmetrically provided at both ends of the lower hoop 2, and a tightening bolt 7 is installed in the internal threaded hole 2-2, and a locking nut 8 is mounted on the locking bolt 7, and the locking nut 8 is located on the outer side of the lower hoop 2.

[0022] In one embodiment, the first hinged ear 1-1 and the second hinged ear 2-1 are each provided in a pair, and the two pairs of hinged ears are arranged alternately.

[0023] In one embodiment, the bottom sides of the concave arc surfaces of the upper clamp 1 and the lower clamp 2 are symmetrical inclined surfaces 9 to form a wedge-shaped structure, which, in conjunction with the tightening bolts and anti-loosening nuts, can lock the upper clamp on the flat wrist arm to ensure that the load-bearing cable seat does not rotate around the flat wrist arm.

[0024] In one embodiment, a step hole 1-2 is provided on the top of the upper clamp 1, a first anti-rotation plane 3-1 is provided on one side of the center hole of the wire support clamp 3, and a second anti-rotation plane 5-1 is provided on one side of the middle of the step bolt 5; the step bolt 5 passes through the step hole 1-2 and the center holes of the wire support clamp 3 and the pressure block 4 from bottom to top and is fastened to the set nut 10, and the first anti-rotation plane 3-1 is fitted together with the second anti-rotation plane 5-1 to prevent the wire support clamp from rotating, thereby causing the load-bearing cable to twist.

[0025] The upper clamp, lower clamp, wire support clamp and pressure block of the utility model are all made of aluminum alloy (or steel) through a metal mold precision forging process. Compared with the original cast aluminum alloy products, the yield rate is improved and the production cost is reduced without reducing the product performance.

[0026] During installation and use, the load-bearing cable seat is firstly sleeved on the wrist arm tube 11 through the upper clamp 1 and the lower clamp 2 and adjusted to a suitable position, and then a torque is applied to the tightening bolt 7 to fix the load-bearing cable seat and the wrist arm tube 11, and then the anti-loosening nut 8 is tightened to prevent the tightening bolt 7 from loosening; finally, the load-bearing cable is clamped between the wire support clamp 3 and the pressure block 4 through the semicircular tube gasket 12, and the sleeve nut 10 is tightened to fix the load-bearing cable on the load-bearing cable seat to complete the installation.

[0027] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A top-thread forged riveted load-bearing cable seat, comprising an upper hoop (1), a lower hoop (2), a wire support clamp (3), a pressure block (4) and a step bolt (5), wherein the wire support clamp (3) and the pressure block (4) are installed above the upper hoop (1) through the step bolt (5); a connecting double ear (2-3) is axially provided below the lower hoop (2); characterized in that: The upper clamp (1) is symmetrically provided with first hinged ears (1-1) on both sides, and the lower clamp (2) is symmetrically provided with second hinged ears (2-1) on both sides, and the first hinged ears (1-1) and the second hinged ears (2-1) are riveted together through a pin (6); the lower clamp (2) is symmetrically provided with internal threaded holes (2-2) at both ends, and a tightening bolt (7) is installed in the internal threaded hole (2-2), and a locking nut (8) is mounted on the locking bolt (7), and the locking nut (8) is located on the outer side of the lower clamp (2).

2. The top-thread forged riveted cable seat according to claim 1, characterized in that: The first hinged ear (1-1) and the second hinged ear (2-1) are each provided in a pair, and the two pairs of hinged ears are arranged alternately.

3. The top-thread forged riveted cable seat according to claim 1 or 2, characterized in that: Both sides of the bottom of the concave arc surface of the upper clamp (1) and the lower clamp (2) are symmetrical inclined surfaces (9).

4. The top-wire forged riveted cable seat according to claim 3, characterized in that: A stepped hole (1-2) is provided at the top of the upper clamp (1); a first anti-rotation plane (3-1) is provided on one side of the center hole of the wire supporting clamp (3); and a second anti-rotation plane (5-1) is provided on one side of the middle of the stepped bolt (5); the stepped bolt (5) passes through the stepped hole (1-2) and the center hole of the wire supporting clamp (3) and the pressure block (4) from bottom to top and is then fastened to the sleeve nut (10), so that the first anti-rotation plane (3-1) and the second anti-rotation plane (5-1) are fitted together.

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