Cantilever rotating base

Abstract

The present invention is a cantilever rotating base, comprising: a fixed base assembly, which is fixedly connected to a hanging column; a fixed shaft, which is vertically connected to the fixed base assembly for rotation; a double-ear base, which is hinged to the fixed base assembly at the top near the end face of the fixed shaft, and an adjusting block is provided at the bottom near the end face of the fixed shaft; a waist hole is provided on the adjusting block; a sliding block is threadedly connected to the fixed shaft, and its end is slidably connected to the waist hole; when the fixed shaft is rotated, the adjusting block moves upward or downward, and the adjusting block moves upward and downward along the waist hole. When the angle between the double-ear base and the fixed base assembly increases or decreases, the angle of the bus connected to the end of the insulator is adjusted so that the central axis of the bus cross section is perpendicular to the connecting line of the track surface at the location. The entire cantilever can realize both horizontal rotation adjustment and vertical rotation adjustment, meet the on-site construction requirements, improve the matching degree of the bow net, ensure the safety of train operation, and meet the higher speed grade requirements of rail vehicles.

Description

Technical Field

[0001] The invention relates to the technical field of overhead rigid contact network components, in particular to a cantilevered rotating base. Background Art

[0002] With the continuous increase in the speed of urban rail transit, higher requirements are placed on the matching effect of the bow and catenary. The rigid suspension positioning method adopts the cantilever type instead of the suspension type; the cantilever positioning device is generally composed of a suspending column, a rotating base, an insulator, an adjustment base, a positioning clamp, etc. Usually, one end of the cantilever device is fixedly connected to the suspending column, and the other end is connected to the busbar through a positioning clamp. In order to cope with the expansion and contraction characteristics of the busbar, the rotating base needs to drive the insulator to rotate and adjust it in the horizontal direction so that the busbar can move along the line direction; at the same time, when there is an error in the verticality of the suspending column and the rail surface or the outer rail of the curved section is too high, in order to ensure that the busbar is parallel to the rail surface during installation, the rotating base should have an adjustment function in the vertical direction. Therefore, the rotating base plays a key role in the cantilever positioning device. The existing rotating base has a complex structure and high production cost, and is inconvenient to install and adjust, which is not conducive to increasing the speed of train operation.

[0003] In summary, a new cantilevered rotating base is provided to achieve large-angle adjustment in the horizontal and vertical directions, better meet on-site construction requirements, improve the matching degree of the pantograph and the catenary, and ensure the safety of train operation. Summary of the Invention

[0004] The present invention provides a novel cantilever type rotating base to overcome the deficiencies of the current technology.

[0005] The technical solution adopted by the present invention is:

[0006] The present invention is a cantilevered rotating base, comprising: a fixed base assembly, which is fixedly connected to a hanging column; a fixed shaft, which is vertically connected to the fixed base assembly for rotation; a double-ear base, which is hinged to the fixed base assembly at the top near the end face of the fixed shaft, and an adjustment block is provided at the bottom near the end face of the fixed shaft; an inclined waist hole is provided on the adjustment block; a sliding block is threadedly connected to the fixed shaft, and an end thereof is slidably connected to the waist hole; when the fixed shaft is rotated, the adjustment block moves upward or downward, and the adjustment block moves upward or downward along the waist hole. When the angle between the double-ear base and the fixed base assembly increases or decreases, the angle of the bus connected to the end of the insulator is adjusted.

[0007] In this solution, the fixed base assembly and the connecting piece are tightly and fixedly connected with the hanging column, the top of the double-ear base is hinged to the fixed base assembly, and an insulator is rotatably arranged on the double-ear base through a rotating shaft; when there is an error in the verticality of the hanging column and the rail surface or the outer rail of the curved section is too high, the height of the sliding block on the fixed shaft is adjusted, and the sliding block is slidably connected to the waist hole on the adjustment block to increase or decrease the angle between the double-ear base and the fixed base assembly, thereby realizing the vertical angle adjustment of the insulator. In this solution, the insulator can achieve an angle adjustment of ±6° relative to the vertical plane of the fixed base assembly to ensure that the central axis of the busbar cross-section symmetry is perpendicular to the track surface line at which it is located.

[0008] To illustrate the specific structure of the fixed base assembly, the present invention adopts a fixed base assembly comprising: a base, a first lug fixed to the upper end surface thereof, and a second lug fixed to the lower end surface thereof; the fixed shaft is fixed between the first lug and the second lug;

[0009] A first supporting ear and a second supporting ear are respectively arranged at the upper and lower positions of the base, and a fixed shaft is arranged between the first supporting ear and the second supporting ear.

[0010] In order to illustrate how the double-ear base is hinged to the fixed base assembly, the present invention adopts a double-ear base with a third ear provided on the top near the end surface of the fixed shaft, and the third ear is hinged to the first ear.

[0011] The third ear on the double-ear base is hinged to the first ear, thereby realizing the hinge connection between the double-ear base and the fixed base assembly.

[0012] To further illustrate the structure of the adjustment block, the present invention adopts a step surface provided on the adjustment block, the inclination direction of the step surface is parallel to the inclination direction of the waist hole; the end of the sliding block is an arc-shaped end that abuts against the step surface;

[0013] In this solution, the end of the sliding block always abuts against the step surface of the adjusting block, thereby further achieving position limiting between the sliding block and the adjusting block.

[0014] How to achieve horizontal movement of the insulator relative to the fixed base assembly? The present invention adopts a method in which a rotating shaft is rotatably provided on the double-ear base, and a sleeve is provided at the end of the insulator to be sleeved and connected to the rotating shaft.

[0015] The insulator is connected to the rotating shaft in the double-ear base through a sleeve. The insulator can rotate left and right around the rotating shaft, so that the angle adjustment of ≥±80° can be achieved in the horizontal direction, so that the bus can move along the line direction; the entire cantilever can realize both horizontal and vertical rotation adjustments, better meeting on-site construction requirements, improving the matching degree of the pantograph and the catenary, ensuring the safety of train operation, and better meeting the higher speed level requirements of rail vehicles.

[0016] In order to prevent the fixed shaft from rotating after being turned, the present invention adopts a locking nut connected to the bottom thread of the fixed shaft, and the locking nut abuts against the second support ear to prevent the fixed shaft from rotating.

[0017] In order to achieve greater flexibility in the rotation of the sleeve, the present invention adopts a washer sleeved on the rotating shaft, and the washer abuts against the end of the sleeve;

[0018] A washer is provided on the rotating shaft, and the washer abuts against the end of the sleeve to increase the flexibility of the insulator's rotation.

[0019] Beneficial effects of the present invention: The present invention is a cantilevered rotating base, which increases or decreases the angle between the double-ear base and the fixed base assembly by rotating the fixed axis, ensuring that the central axis of the busbar cross-section symmetry is perpendicular to the track surface line at the location. The entire cantilever can realize both horizontal and vertical rotation adjustments, better meeting on-site construction requirements, improving the matching degree of the bow net, ensuring the safety of train operation, and better meeting the higher speed level requirements of rail vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the sleeve of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the insulator of the present invention;

[0024] Figure 4 This is a schematic diagram of the installation structure of the anti-loosening nut and washer;

[0025] In the figure: 1-fixed shaft, 2-double-ear base, 3-adjusting block, 4-waist hole, 5-sliding block, 6-base, 7-first ear, 8-second ear, 9-third ear, 10-step surface, 11-arc, 12-rotating shaft, 13-insulator, 14-sleeve, 15-locking nut, 16-washer. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1-4As shown, the present invention is a cantilever rotating base, comprising: a fixed base assembly, which is fixedly connected to the suspension column; a fixed shaft 1, which is vertically connected to the fixed base assembly for rotation; a double-ear base 2, which is hinged to the fixed base assembly at the top near the end face of the fixed shaft 1, and an adjustment block 3 is provided at the bottom near the end face of the fixed shaft 1; an inclined waist hole 4 is provided on the adjustment block 3; a sliding block 5 is slidably arranged on the fixed shaft 1, and its end is slidably connected to the waist hole 4; when the fixed shaft 1 is rotated, the adjustment block 3 moves upward or downward, and the adjustment block 3 moves upward or downward along the waist hole 4. When the angle between the double-ear base 2 and the fixed base assembly increases or decreases, the angle of the bus fixed at the end of the insulator 13 is adjusted.

[0028] In this solution, the fixed base assembly and the connecting piece are tightly and fixedly connected with the hanging column, the top of the double-ear base is hinged to the fixed base assembly, and an insulator is rotatably arranged on the double-ear base through a rotating shaft; when there is an error in the verticality of the hanging column and the rail surface or the outer rail of the curved section is too high, the height of the sliding block on the fixed shaft is adjusted, and the sliding block is slidably connected to the waist hole on the adjustment block to increase or decrease the angle between the double-ear base and the fixed base assembly, thereby realizing the vertical angle adjustment of the insulator. In this solution, the insulator can achieve an angle adjustment of ±6° relative to the vertical plane of the fixed base assembly to ensure that the central axis of the busbar cross-section symmetry is perpendicular to the track surface line at which it is located.

[0029] like Figure 1 As shown, in order to illustrate the specific structure of the fixed base assembly, the present invention adopts a fixed base assembly comprising: a base 6, a first lug 7 is fixed to the upper end surface thereof, and a second lug 8 is fixed to the lower end surface thereof; a fixed shaft 1 is fixed between the first lug 7 and the second lug 8;

[0030] A first supporting ear and a second supporting ear are respectively arranged at the upper and lower positions of the base, and a fixed shaft is arranged between the first supporting ear and the second supporting ear.

[0031] like Figure 1 As shown, in order to illustrate how the double-ear base is hinged to the fixed base assembly, the present invention adopts a double-ear base 2 with a third ear 9 provided on the top of the end surface close to the fixed shaft 1, and the third ear 9 is hinged to the first ear 7.

[0032] The third ear on the double-ear base is hinged to the first ear, thereby realizing the hinge connection between the double-ear base and the fixed base assembly.

[0033] like Figure 1 As shown, in order to further illustrate the structure of the adjustment block, the present invention adopts a step surface 10 provided on the adjustment block 3, the inclination direction of the step surface 10 is parallel to the inclination direction of the waist hole 4; the end of the sliding block 5 is an arc 11 that abuts against the step surface 10;

[0034] In this solution, the end of the sliding block always contacts the step surface of the adjusting block, thereby further achieving position limiting between the sliding block and the adjusting block and increasing the contact area between the end of the sliding block and the adjusting block.

[0035] like Figure 2-3 As shown, how to realize the horizontal movement of the insulator relative to the fixed base assembly, the present invention adopts a double-ear base 2 on which a rotating shaft 12 is rotatably provided, and a sleeve 14 is provided at the end of the insulator 13 to be sleeved and connected to the rotating shaft 12;

[0036] The insulator is connected to the rotating shaft in the double-ear base through a sleeve. The insulator can rotate left and right around the rotating shaft, so that the angle adjustment of ≥±80° can be achieved in the horizontal direction, so that the bus can move along the line direction; the entire cantilever can realize both horizontal and vertical rotation adjustments, better meeting on-site construction requirements, improving the matching degree of the pantograph and the catenary, ensuring the safety of train operation, and better meeting the higher speed level requirements of rail vehicles.

[0037] like Figure 4 As shown, in order to prevent the fixed shaft from rotating after being turned, the present invention adopts a locking nut connected to the bottom thread of the fixed shaft, and the locking nut abuts against the second support ear to prevent the fixed shaft from rotating.

[0038] like Figure 4 As shown, in order to achieve greater flexibility in the rotation of the sleeve, the present invention adopts a washer sleeved on the rotating shaft, and the washer abuts against the end of the sleeve;

[0039] A washer is provided on the rotating shaft, and the washer abuts against the end of the sleeve to increase the flexibility of the insulator's rotation.

[0040] The present invention is a cantilevered rotating base, which increases or decreases the angle between the double-ear base and the fixed base assembly by rotating the fixed shaft, ensuring that the central axis of the busbar's cross-section symmetry is perpendicular to the track surface line at the location. The entire cantilever can realize both horizontal and vertical rotation adjustments, better meeting on-site construction requirements, improving the matching degree of the bow and net, ensuring the safety of train operation, and better meeting the higher speed level requirements of rail vehicles.

[0041] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. Cantilever rotating base, characterized in that: include: a fixed base assembly fixedly connected to the davit; a fixed shaft, which is vertically and rotatably connected to the fixed base assembly; A double-ear base, which is connected to the insulator, has a top hinged to the fixed base assembly, and an adjustment block provided at the bottom; The adjusting block is provided with an inclined waist hole; A sliding block, which is threadedly connected to the fixed shaft and has an end portion slidably connected to the waist hole; When the fixed shaft is rotated, the adjustment block moves upward or downward, and the adjustment block moves upward or downward along the waist hole. When the angle between the double-ear base and the fixed base assembly increases or decreases, the angle of the busbar connected to the end of the insulator is adjusted; The fixed base assembly includes: The base has a first lug fixed to the upper end surface and a second lug fixed to the lower end surface; The fixed shaft is fixed between the first support ear and the second support ear; The adjusting block is provided with a step surface, and the inclination direction of the step surface is parallel to the inclination direction of the waist hole; The end of the sliding block is in an arc shape that abuts against the step surface; A rotating shaft is rotatably provided on the double-ear base, and a sleeve is provided on the end of the insulator and is sleeve-connected to the rotating shaft.

2. The cantilever rotating base according to claim 1, characterized in that: The double-ear base is provided with a third ear at the top near the end surface of the fixed shaft, and the third ear is hinged to the first ear.

3. The cantilevered rotating base according to claim 1, characterized in that: A locking nut is provided at the bottom of the fixed shaft.

4. The cantilevered rotating base according to claim 3, characterized in that: A washer is sleeved on the rotating shaft, and the washer abuts against the end of the sleeve.

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