CN214083950U

CN214083950U - Rigid suspension support fixing system in low clearance tunnel

Info

Publication number: CN214083950U
Application number: CN202023071451.4U
Authority: CN
Inventors: 尹强强; 张娴; 李兴东; 孙文豪
Original assignee: Nanjing Jincheng Rail Transport Equipment Co ltd
Current assignee: Nanjing Wuhua Electrical Equipment Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-31
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a rigidity suspension support fixed system in low headroom tunnel, including the upper and lower angularly adjustable's that connects gradually movable base, but the rotating assembly of turning left and right, support insulator, fastener connecting plate and location fastener, wherein movable base is including being fixed in the unable adjustment base in the tunnel, articulate in the adjusting screw of unable adjustment base left end, be located the unable adjustment base below and with unable adjustment base right end looks articulated adjusting base and be fixed in on the adjusting base and with adjusting screw threaded connection's regulating block, drive the adjusting base through adjusting threaded connection and realize the vertical angle rotation around the unable adjustment base right-hand member. The utility model discloses a thereby the installation angle of angle adjustable adjustment location fastener makes the location line press from both sides and realizes more than or equal to 8 angle modulation angle in outer rail superelevation district section about the movable base realization.

Description

Rigid suspension support fixing system in low clearance tunnel

Technical Field

The utility model relates to a hang bearing structure, especially relate to a rigidity suspension supports fixed system in low headroom tunnel.

Background

The section contact net adopts rigid contact to hang in underground or the tunnel, and rigid contact hangs mainly to constitute by the form of busbar and contact wire, establishes the overhead line in addition, does not have supplementary feeder, and rigid contact hangs and all installs in tunnel top or tunnel wall through positioner, and rigid contact hangs contact net bearing structure generally adopts clavate column type composite insulator, installation base, horizontal cantilever to constitute in the present scheme commonly used, and the installation base is installed on the davit. But installation base and horizontal cantilever can't be adjusted in the present structure, consequently appear easily because of the contact net installation space that the pantograph risees and lead to reduces the problem to and the unable superhigh installation demand of different tracks of adaptation and the line that converges after the heat expansion and contraction contract extend the demand, thereby restrict its application scope, can't effectively promote.

Thus, there is a need to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a rigidity hangs support fixed system in low headroom tunnel that the upper and lower angle of adjustable location installation satisfies the installation demand.

The technical scheme is as follows: for the purpose above the realization, the utility model discloses a rigidity suspension supports fixed system in low headroom tunnel, including the upper and lower angularly adjustable's that connects gradually movable base, the rotating assembly of irrotational about, support insulator, fastener connecting plate and location fastener, wherein movable base is including being fixed in the tunnel unable adjustment base, articulate in the adjusting screw of unable adjustment base left end, be located unable adjustment base below and with unable adjustment base right end looks articulated adjusting base and be fixed in on the adjusting base and with adjusting screw threaded connection's regulating block, drive the adjusting base through adjusting threaded connection and realize angle rotation about the unable adjustment base right-hand member.

The rotating assembly comprises a fixed support fixed with the adjusting base and a movable support which is connected with the fixed support through a rotating shaft and can rotate left and right around the rotating shaft, and the movable support is fixedly connected with the supporting insulator.

Preferably, the inner surfaces of the fixed bracket and the movable bracket are both provided with reinforcing plates.

Furthermore, three parallel chutes are formed in the wire clamp connecting plate, the positioning wire clamp is clamped into the chute in the middle to realize limiting, and the positioning wire clamp is connected and fixed with the rest chutes through bolts.

Furthermore, the positioning wire clamp comprises an elastic wire clamp body, a shaft sleeve pressed in the through hole of the elastic wire clamp body, a fixed shaft penetrating through the shaft sleeve and extending into the inner cavity of the elastic wire clamp body, a positioning threaded sleeve positioned at the lower end part of the fixed shaft, a spring sleeved on the positioning threaded sleeve and having one end abutting against the upper surface of the step of the positioning threaded sleeve and one end abutting against the lower surface of the elastic wire clamp body, and a fixed block positioned at the upper end of the fixed shaft and used for connecting a wire clamp connecting plate.

Preferably, the fixed block is provided with a limiting step matched with the middle sliding groove and a connecting hole matched with the rest sliding grooves.

Furthermore, the upper end of the fixed shaft sequentially penetrates through a locking nut and a locking block to be connected with the fixed block, and the locking block and the fixed block are fixedly connected through a bolt; the upper surface of the fixed block is provided with a groove, and the locking block is provided with a step matched with the groove at the corresponding position.

Further, the elastic wire clamp body is connected with the busbar through a pressing plate and a bolt.

Preferably, the fixed shaft is provided with a convex part matched with the upper surface of the elastic wire clamp body.

Furthermore, the adjusting base is hinged with the right end of the fixed base through a hinge shaft.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: firstly, the utility model realizes the adjustable up-down angle through the movable base, thereby adjusting the installation angle of the positioning wire clamp to lead the positioning wire clamp to realize the adjustment angle of more than or equal to +/-8 degrees in the outer rail ultrahigh section; secondly, the left and right angles of the rotary component can be adjusted, the rotary component can rotate parallel to the rail surface when the busbar expands with heat and contracts with cold, even in an ultrahigh area, the busbar is always kept at a constant height, and the busbar can naturally extend along a line after expansion and contraction with heat; moreover, the utility model can adjust the position of the positioning wire clip on the chute of the wire clip connecting plate, and meets the installation requirements of the rigid suspension type contact net for adapting to different track superelevation and different pulling value positions; finally the utility model discloses well location fastener is the elastic positioning fastener, thereby wherein the spring has improved the quality that the pantograph passes through as damping element, can solve because of the compensation pantograph risees the problem that leads to the contact net installation space to reduce, ensures that overall structure has good reliability and can extensively popularize and apply in 160 km/h's track traffic.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic structural view of the movable base and the rotating assembly of the present invention;

fig. 5 is a schematic structural view of the middle wire clamp connecting plate of the present invention;

fig. 6 is a schematic structural view of the positioning wire clamp of the present invention;

fig. 7 is the connection schematic diagram of the middle positioning wire clamp and the wire clamp connection plate of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, fig. 2 and fig. 3, the utility model relates to a rigid suspension supports fixing system in low headroom tunnel, including movable base 1, rotating assembly 2, support insulator 3, fastener connecting plate 4 and location fastener 5, wherein movable base 1, rotating assembly 2, support insulator 3, fastener connecting plate 4 and location fastener 5 interconnect in proper order.

As shown in fig. 3 and 4, the movable base 1 includes a fixed base 101, an adjustment screw 102, an adjustment base 103, an adjustment block 104, and a hinge shaft 105. The fixed base 101 is fixed with the suspension posts 7 in the tunnel through clamps, the adjusting screw 102 is hinged to the left end of the fixed base 101, the adjusting base 103 is located below the fixed base 101, and the adjusting base 103 is hinged to the right end of the fixed base 101 through a hinge shaft 105. The adjusting block 104 is provided with a threaded hole for the adjusting screw 102 to penetrate through, the adjusting block 104 is fixedly connected with the adjusting base 103 through a connecting shaft 106 and a nut, the adjusting screw 102 penetrates through the adjusting block 104 and is fixed by the nut, and the adjusting nut is rotated to adjust the relative position of the adjusting screw 102 and the adjusting block 104, so that the adjusting base 103 is driven to rotate around the right end of the fixing base 101 to realize vertical angle rotation. The utility model discloses a thereby the installation angle of angle adjustable adjustment location fastener makes the location line press from both sides and realizes more than or equal to 8 angle modulation angle in outer rail superelevation district section about the movable base realization.

The rotating assembly 2 comprises a fixed support 201, a rotating shaft 202, a movable support 203 and a reinforcing plate 204, the fixed support 201 and the adjusting base 103 are fixed through welding, the movable support 203 is connected with the fixed support 201 through the rotating shaft 202, and the movable support 203 can rotate left and right around the rotating shaft 202, so that the left and right angles can be automatically adjusted when the temperature is expanded with heat and is contracted with cold; the movable bracket 203 is fixedly connected to the support insulator 3. The inner surfaces of the fixed bracket 201 and the movable bracket 203 are provided with reinforcing plates 204. The utility model discloses an angle is adjustable about the rotating assembly realizes, rotating assembly can with rail face parallel rotation when busbar expend with heat and contract with cold, even in super high region, the busbar remains throughout at invariable height, can line extend naturally after satisfying busbar expend with cold.

As shown in fig. 5, three parallel sliding grooves 401 are formed in the wire clamp connecting plate 4, wherein the positioning wire clamp 5 is clamped into the sliding groove in the middle to realize limiting, and the positioning wire clamp 4 is connected and fixed with the rest of the sliding grooves through bolts, so that the installation requirements of different pull-out values and positions are met. The utility model discloses adjustable positioning wire presss from both sides the position on fastener connecting plate spout, has satisfied the installation requirement of different track superelevation of rigid suspension type contact net adaptation and different pulling-out value positions.

As shown in fig. 6 and 7, the positioning clip 5 includes an elastic clip body 501, a shaft sleeve 502, a fixing shaft 503, a positioning screw sleeve 504, a spring 505, a fixing block 506, a locking nut 507, a locking block 508 and a pressing plate 509. The elastic wire clamp body 501 is a bent piece having a straight portion connected to the busbar and a recessed portion connected to the fixed shaft, and the straight portion of the elastic wire clamp body 501 is connected to the busbar 6 through the pressing plate 509 and the bolt; the groove portion is provided with a through hole for the fixing shaft 503 to penetrate through, the shaft sleeve 502 is pressed in the through hole of the elastic wire clamp body, the fixing shaft 503 penetrates through the shaft sleeve 502 and extends into an inner cavity of the groove portion of the elastic wire clamp body, the positioning threaded sleeve 504 is positioned at the lower end portion of the fixing shaft 503, and the positioning threaded sleeve 504 is in threaded connection with the lower end portion of the fixing shaft 503. The spring 505 is sleeved on the positioning threaded sleeve 504, and one end of the spring 505 abuts against the upper surface of the step of the positioning threaded sleeve 504 and the other end abuts against the lower surface of the groove portion of the elastic wire clamp body 501. The fixed block 506 is positioned at the upper end of the fixed shaft 503, the upper end of the fixed shaft 503 sequentially penetrates through a locking block 508 of a locking nut 507 to be connected with the fixed block 506, and the locking block 508 and the fixed block 506 are fixedly connected through a bolt to prevent the fixed block 506 from rotating; the upper surface of the fixed block 506 is provided with a groove 5063, and a step 5081 matched with the groove is arranged at the position corresponding to the locking block 508. The fixed block 506 is provided with a limiting step 5061 matched with the middle sliding groove and a connecting hole 5062 matched with the rest sliding groove, the limiting step 5061 of the fixed block 506 is clamped into the middle sliding groove to realize limiting, and the connecting hole 5062 of the fixed block 506 is connected and fixed with the rest sliding groove through a bolt. The fixing shaft 503 has a protrusion 5031 matching with the upper surface of the elastic clip body. The utility model discloses well location fastener is the elastic positioning fastener, thereby wherein the spring has improved the quality that the pantograph passes through as damping element, can solve because of the compensation pantograph risees the problem that leads to the contact net installation space to reduce, ensures that overall structure has good reliability and can extensively popularize and apply in 160 km/h's track traffic.

Claims

1. The utility model provides a rigid suspension supports fixed system in low headroom tunnel which characterized in that: the adjustable-angle tunnel boring machine comprises a movable base (1) with an adjustable upper angle and a lower angle, a rotating assembly (2) capable of rotating left and right, a supporting insulator (3), a wire clamp connecting plate (4) and a positioning wire clamp (5), wherein the movable base (1) comprises a fixed base (101) fixed in a tunnel, an adjusting screw rod (102) hinged to the left end of the fixed base, an adjusting base (103) located below the fixed base and hinged to the right end of the fixed base, and an adjusting block (104) fixed on the adjusting base and in threaded connection with the adjusting screw rod, and the adjusting base (103) is driven to rotate by adjusting threaded connection around the right end of the fixed base (101) to achieve the upper and lower angle.

2. The rigid suspension support and fixation system in a low clearance tunnel of claim 1, wherein: the rotating assembly (2) comprises a fixed support (201) fixed with the adjusting base and a movable support (203) which is connected with the fixed support (201) through a rotating shaft (202) and can rotate left and right around the rotating shaft (202), and the movable support (203) is fixedly connected with the supporting insulator (3).

3. The rigid suspension support and fixation system in a low clearance tunnel of claim 2, wherein: and reinforcing plates (204) are arranged on the inner surfaces of the fixed support (201) and the movable support (203).

4. The rigid suspension support and fixation system in a low clearance tunnel of claim 1, wherein: three parallel sliding grooves (401) are formed in the wire clamp connecting plate (4), the positioning wire clamp (5) is clamped into the sliding groove in the middle to achieve limiting, and the positioning wire clamp (5) is connected and fixed with the rest of the sliding grooves through bolts.

5. The rigid suspension support and fixation system in a low clearance tunnel of claim 1, wherein: the positioning wire clamp (5) comprises an elastic wire clamp body (501), a shaft sleeve (502) pressed in a through hole of the elastic wire clamp body, a fixing shaft (503) penetrating through the shaft sleeve (502) and extending into an inner cavity of the elastic wire clamp body, a positioning threaded sleeve (504) positioned at the lower end part of the fixing shaft, a spring (505) sleeved on the positioning threaded sleeve and having one end abutted to the upper surface of a step of the positioning threaded sleeve and one end abutted to the lower surface of the elastic wire clamp body, and a fixing block (506) positioned at the upper end of the fixing shaft and used for connecting a wire clamp connecting plate.

6. The rigid suspension support and fixation system in a low clearance tunnel of claim 5, wherein: the fixed block (506) is provided with a limiting step (5061) matched with the middle sliding groove and a connecting hole (5062) matched with the rest sliding grooves.

7. The rigid suspension support and fixation system in a low clearance tunnel of claim 5, wherein: the upper end of the fixed shaft (503) sequentially penetrates through a locking nut (507) and a locking block (508) to be connected with a fixed block (506), and the locking block (508) is fixedly connected with the fixed block (506) through a bolt; wherein, the upper surface of the fixed block (506) is provided with a groove (5063), and the corresponding position of the locking block (508) is provided with a step (5081) matched with the groove.

8. The rigid suspension support and fixation system in a low clearance tunnel of claim 5, wherein: the elastic wire clamp body (501) is connected with the busbar (6) through a pressing plate (509) and a bolt.

9. The rigid suspension support and fixation system in a low clearance tunnel of claim 5, wherein: the fixed shaft (503) is provided with a bulge (5031) matched with the upper surface of the elastic wire clamp body.

10. The rigid suspension support and fixation system in a low clearance tunnel of claim 1, wherein: the adjusting base (103) is hinged with the right end of the fixed base (101) through a hinge shaft (105).