Contact pressure detection device for pantograph contact line

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By designing a contact pressure detection device including extruded parts and fixed parts, the problems of disengagement and inaccurate detection of existing equipment when detecting contact pressure in the contact line are solved, and higher detection accuracy and convenience are achieved.

CN222652418UActive Publication Date: 2025-03-21SHAANXI RAILWAY INST

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Patent Information

Application Number: CN202420413796.2
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-03-04
Publication Date: 2025-03-21
Estimated Expiration: 2034-03-04

AI Technical Summary

Technical Problem

When existing equipment detects the contact pressure of the contact line, the contact line is easy to disengage, cannot be easily clamped and fixed, and cannot be multi-point position detection, resulting in inaccurate detection and affecting convenience and practicality.

Method used

A contact pressure detection device including a base, an extrusion member and a fixing member is designed. The extruded component realizes multi-point down-pressure detection of the contact line through the cylinder and push rod system, and the fixing component prevents the contact line from being disengaged through the screw and block structure.

Benefits of technology

It improves the accuracy and convenience of contact pressure detection of contact lines, ensures stable and fixed contact lines, and avoids disengagement problems during the detection process.

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Abstract

The utility model discloses a contact pressure detection device for a pantograph contact line, which comprises a base, an extrusion part used for carrying out pressure detection on the pantograph contact line and a fixing part used for preventing two ends of the contact line from being separated, the extrusion part comprises a support arranged at the top of the base and used for supporting, a movable through hole formed in the top of the support and used for providing a movable space, a sliding block arranged on the inner side of the movable through hole and used for supporting, and a first air cylinder arranged on one side of the support. The fixing frame drives the pressing wheel to move downwards through the fixing shaft, and the problems that when an existing device conducts contact pressure detection on a contact line, the contact line is prone to disengagement, the two ends of the contact line cannot be conveniently clamped and fixed, multi-point position detection cannot be conveniently conducted on the contact line, contact line pressure detection is not accurate, and the contact line pressure detection precision is high are solved. And the convenience and the practicability of the equipment for detecting the contact line are influenced.

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Description

Technical Field

[0001] The utility model relates to the technical field of contact line detection, in particular to a contact pressure detection device for a pantograph contact line. Background Art

[0002] An electrical device that an electric traction locomotive uses to obtain electrical energy from the contact network. It is installed on the roof of a locomotive or EMU. The pantograph can be divided into two types: a single-arm pantograph and a double-arm pantograph. The smoothness of the load current passing through the contact line and the contact surface of the pantograph slide is related to the contact pressure, transition resistance, and contact area between the slide and the contact line, and depends on the interaction between the pantograph and the contact network. The pretensioned line along which the pantograph slides is called the contact line. The contact line acts as a contact slideway and transmits electrical energy to the electric locomotive through the pantograph uninterruptedly. The cross-sectional shape of the contact line is made into a cylindrical shape with a groove on the upper part. The groove is for the convenience of installing the contact line wire clamp. The bottom surface of the contact line that contacts the pantograph is in an arc shape. The contact line is classified according to the material and is mainly divided into copper contact line, steel-aluminum contact line, and copper alloy contact line. In order to detect the quality of the finished product of the contact line, it is usually subjected to contact pressure testing.

[0003] When the existing equipment performs contact pressure detection on the contact wire, the contact wire is prone to detachment, the two ends of the contact wire cannot be conveniently clamped and fixed, and the contact wire cannot be conveniently detected at multiple points, resulting in inaccurate contact wire pressure detection, affecting the convenience and practicality of the equipment in detecting the contact wire. Utility Model Content

[0004] The utility model aims to provide a contact pressure detection device for a pantograph contact line to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a contact pressure detection device for a pantograph contact line, comprising a base, a squeezing component for pressure detection of the pantograph contact line, and a fixing component for preventing the two ends of the contact line from being separated, wherein the squeezing component comprises a bracket arranged at the top of the base for support, a movable through hole opened at the top of the bracket for providing a movable space, a sliding block arranged at the inner side of the movable through hole for support, a first cylinder arranged at one side of the bracket, a first push rod arranged at one side of the first cylinder, a second cylinder arranged at the top of the sliding block, a second push rod arranged at the bottom of the second cylinder, a fixing frame arranged at the bottom of the second push rod, a fixing shaft arranged at the bottom of the fixing frame, a pressure wheel sleeved on the outside of the fixing shaft, a through hole opened in the middle of one side of the base, a mounting frame installed at the bottom of the base and located directly below the through hole, a pressure sensor arranged at the inner side of the mounting frame, a touch rod arranged at the top of the pressure sensor, a pressure plate arranged at the outer side of the touch rod for connection, and a supporting frame arranged at the bottom of the mounting frame and located on both sides of the pressure sensor;

[0006] The sliding block is slidably connected to the movable through hole, the fixed frame is fixedly connected to the second push rod, the fixed shaft is rotatably connected to the pressing wheel, the contact rod is fixedly connected to the pressing plate, the pressing plate is slidably connected to the mounting frame, and the cross section of the pressing plate is "several" shaped.

[0007] Preferably, the fixing member includes support blocks provided on the top of the base and located on both sides of the through hole, placement through holes opened on one side of the support blocks to provide a placement space, screws provided on the top of the support blocks to drive, and pressing blocks provided at the bottom of the screws to fix the contact wire. The screw is screwed to the support block, the screw is rotatably connected to the pressing block and does not disengage, and the pressing block is movably connected to the placement through hole.

[0008] Preferably, a plurality of clamping blocks are uniformly arranged at the bottom of the pressing block, and the cross section of the clamping block is arc-shaped.

[0009] Preferably, a first anti-slip pad is laid at the bottom of the placement through hole, a second anti-slip pad is laid on the inner top of the pressing block, and both the first anti-slip pad and the second anti-slip pad are arc-shaped.

[0010] Preferably, a guide rod is provided at the bottom of the support frame, a spring for support is sleeved on the outer side of the guide rod, and the spring is fixedly connected to the support frame.

[0011] Preferably, limiting blocks for guiding are respectively provided on both sides of the sliding block, limiting grooves are respectively opened on both sides of the movable through hole, and the limiting blocks are slidably connected to the limiting grooves.

[0012] Preferably, arc-shaped portions for sliding are respectively provided on both sides of the through hole, and the cross section of the arc-shaped portion is arc-shaped.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. Through the base, bracket, movable through hole, sliding block, first cylinder, first push rod, second cylinder, second push rod, fixed frame, fixed shaft, pressing wheel, through hole, mounting frame, pressure sensor, contact rod, pressing plate and support frame, the sliding block is slidably connected to the movable through hole, the fixed frame is fixedly connected to the second push rod, the fixed shaft is rotatably connected to the pressing wheel, the contact rod is fixedly connected to the pressing plate, the pressing plate is slidably connected to the mounting frame, the cross section of the pressing plate is "several" shaped, the contact wire is located on the top of the contact rod, and then the first cylinder drives the sliding block to slide in the movable through hole through the first push rod, so as to facilitate the pressing wheel to press and detect different positions of the contact wire. Then, the second cylinder drives the fixed frame at the bottom of the second push rod to slide up and down, and then the fixed frame drives the pressing wheel to move downward through the fixed shaft. Then, the pressing wheel presses the pressure sensor on the top of the contact rod through the contact wire, and the pressure sensor displays the pressure received by the contact wire, improving the accuracy and convenience of the equipment for detecting the contact pressure of the contact wire.

[0015] 2. The utility model comprises a support block, a placement through hole, a screw and a pressure block. The screw is threadedly connected to the support block, the screw and the pressure block are rotatably connected and do not separate, the pressure block is movably connected to the placement through hole, the contact line passes through the placement through hole on the inner side of the support block, and then the screw is used to drive the pressure block to move downward, and then the pressure block and the placement through hole press and fix the contact line to prevent the contact line from separating, thereby improving the stability of the fixed contact line. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0018] Figure 3 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 The overall structure of the utility model Figure 2 Enlarged view of point B in the middle.

[0020] In the figure: 1, base; 11, bracket; 12, movable through hole; 13, sliding block; 14, first cylinder; 15, first push rod; 16, second cylinder; 17, second push rod; 18, fixed frame; 19, fixed shaft; 20, pressure wheel; 21, through hole; 22, mounting frame; 23, pressure sensor; 24, touch rod; 25, pressure plate; 26, support frame; 27, support block; 28, placement through hole; 29, screw; 30, pressure block; 31, clamping block; 32, first anti-skid pad; 33, second anti-skid pad; 34, guide rod; 35, spring; 36, limit block; 37, limit groove; 211, arc portion. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0023] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 4 As shown in the figure, a contact pressure detection device for a pantograph contact wire provided by an embodiment of the present utility model includes a base 1, a squeezing component for detecting the pressure of the pantograph contact wire, and a fixing component for preventing the two ends of the contact wire from detaching. The squeezing component includes a bracket 11 provided at the top of the base 1 for support, a movable through hole 12 opened at the top of the bracket 11 for providing a moving space, a sliding block 13 provided inside the movable through hole 12 for support, a first cylinder 14 provided on one side of the bracket 11, a first push rod 15 provided on one side of the first cylinder 14, a second cylinder 16 provided on the top of the sliding block 13, a second push rod 17 provided at the bottom of the second cylinder 16, a fixing frame 18 provided at the bottom of the second push rod 17, a fixing shaft 19 provided at the bottom of the fixing frame 18, a pressure wheel 20 sleeved outside the fixing shaft 19, a through hole 21 opened at the middle of one side of the base 1, a mounting frame 22 installed at the bottom of the base 1 and directly below the through hole 21, a pressure sensor 23 provided inside the mounting frame 22, a contact rod 24 provided on the top of the pressure sensor 23, a pressing plate 25 provided outside the contact rod 24 for connection, and a support frame 26 provided at the bottom of the mounting frame 22 and on both sides of the pressure sensor 23;

[0025] The sliding block 13 is slidably connected to the movable through hole 12, the fixing frame 18 is fixedly connected to the second push rod 17, the fixing shaft 19 is rotatably connected to the pressure wheel 20, the contact rod 24 is fixedly connected to the pressing plate 25, the pressing plate 25 is slidably connected to the mounting frame 22, and the cross section of the pressing plate 25 is in the shape of "several".

[0026] Reference Figure 3 As shown in the figure, the fixing component includes support blocks 27 provided at the top of the base 1 and on both sides of the through hole 21, placing through holes 28 opened on one side of the support blocks 27 for providing a placing space, screw rods 29 provided on the top of the support blocks 27 for driving, and pressing blocks 30 provided at the bottom of the screw rods 29 for fixing the contact wire. The screw rods 29 are screwed to the support blocks 27, the screw rods 29 are rotatably connected to the pressing blocks 30 and do not detach, and the pressing blocks 30 are movably connected to the placing through holes 28.

[0027] Adopting the above scheme: through the support blocks 27, the placing through holes 28, the screw rods 29, and the pressing blocks 30, the screw rods 29 are screwed to the support blocks 27, the screw rods 29 are rotatably connected to the pressing blocks 30 and do not detach, the pressing blocks 30 are movably connected to the placing through holes 28, the contact wire passes through the placing through holes 28 inside the support blocks 27, then the screw rods 29 are used to drive the pressing blocks 30 to move downward, and then the pressing blocks 30 and the placing through holes 28 press and fix the contact wire, avoiding the detachment of the contact wire and improving the stability of fixing the contact wire.

[0028] Reference Figure 3A plurality of uniformly arranged clamping blocks 31 are provided at the bottom of the pressing block 30, and the cross section of the clamping blocks 31 is arc-shaped.

[0029] The above solution is adopted: through the clamping block 31, the cross-section of the clamping block 31 is arc-shaped, and multiple clamping blocks 31 can increase the contact area between the pressing block 30 and the contact line, and improve the stability of the pressing block 30 fixing the contact line through multiple clamping blocks 31.

[0030] refer to Figure 3 A first anti-skid pad 32 is laid at the bottom of the placement through hole 28, and a second anti-skid pad 33 is laid at the top of the inner side of the pressing block 30. Both the first anti-skid pad 32 and the second anti-skid pad 33 are arc-shaped.

[0031] The above solution is adopted: through the first anti-skid pad 32 and the second anti-skid pad 33, both of which are arc-shaped, the first anti-skid pad 32 and the second anti-skid pad 33 can fix the contact line in an anti-skid manner, thereby improving the anti-skid property of the fixed contact line.

[0032] refer to Figure 4 A guide rod 34 is provided at the bottom of the support frame 26 , and a spring 35 for supporting is sleeved on the outer side of the guide rod 34 , and the spring 35 is fixedly connected to the support frame 26 .

[0033] The above solution is adopted: through the guide rod 34 and the spring 35, the spring 35 is fixedly connected to the support frame 26, and the spring 35 can support the support frame 26 upward, thereby improving the stability of the support frame 26 supporting the pressure plate 25 upward.

[0034] refer to Figure 2 The sliding block 13 is provided with limiting blocks 36 for guiding on both sides, and the movable through hole 12 is provided with limiting grooves 37 on both sides, and the limiting blocks 36 are slidably connected with the limiting grooves 37.

[0035] The above solution is adopted: through the limit block 36 and the limit groove 37, the limit block 36 is slidably connected with the limit groove 37, and the limit block 36 can guide and support the sliding block 13, thereby improving the stability of the sliding block 13 sliding in the movable through hole 12.

[0036] refer to Figure 2 The two sides of the through hole 21 are respectively provided with arc-shaped parts 211 for sliding, and the cross section of the arc-shaped part 211 is an arc.

[0037] The above solution is adopted: the arc portion 211 has an arc-shaped cross section, which can prevent the two sides of the through hole 21 from scratching and damaging the contact line, thereby improving the effect of the arc portion 211 in protecting the contact line.

[0038] The working principle of this utility model:

[0039] First, the contact line is passed through the placement through hole 28 on the inner side of the support block 27, and then the screw 29 drives the pressing block 30 to move downward, and then the pressing block 30 and the placement through hole 28 press and fix the contact line, and at the same time, the pressing block 30 drives multiple clamping blocks 31 to move downward, at this time, the first anti-skid pad 32 and the second anti-skid pad 33 are tightly fitted with the contact line, and then the first cylinder 14 is started, so that it drives the sliding block 13 to slide in the movable through hole 12 through the first push rod 15, and at the same time, the sliding block 13 drives the limit block 36 in the limit The second cylinder 16 is driven by the second push rod 17 to move, and then the second cylinder 16 is started to drive the fixing frame 18 at the bottom of the second push rod 17 to move downward. At the same time, the fixing frame 18 drives the pressure wheel 20 to move downward through the fixed shaft 19, and then the pressure wheel 20 presses down the pressure sensor 23 on the top of the touch rod 24 through the contact line, and then the touch rod 24 presses down the pressure sensor 23, and then the pressure sensor 23 displays the pressure on the contact line.

[0040] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A contact pressure detection device for a pantograph contact line, comprising a base (1), a pressing component for detecting the pressure of the pantograph contact line, and a fixing component for preventing the two ends of the contact line from being separated, characterized in that: The extrusion component includes a bracket (11) provided at the top of the base (1) for support, a movable through-hole (12) opened at the top of the bracket (11) to provide a movable space, a sliding block (13) provided inside the movable through-hole (12) for support, a first cylinder (14) provided on one side of the bracket (11), a first push rod (15) provided on one side of the first cylinder (14), a second cylinder (16) provided on the top of the sliding block (13), a second push rod (17) provided at the bottom of the second cylinder (16), a fixing frame (18) provided at the bottom of the second push rod (17), a fixing shaft (19) provided at the bottom of the fixing frame (18), a pressing wheel (20) sleeved outside the fixing shaft (19), a through-hole (21) opened at the middle of one side of the base (1), a mounting frame (22) installed at the bottom of the base (1) and directly below the through-hole (21), a pressure sensor (23) provided inside the mounting frame (22), a contact rod (24) provided on the top of the pressure sensor (23), a pressing plate (25) provided outside the contact rod (24) for connection, and a support frame (26) provided at the bottom of the mounting frame (22) and on both sides of the pressure sensor (23); The sliding block (13) is slidably connected to the movable through-hole (12), the fixing frame (18) is fixedly connected to the second push rod (17), the fixing shaft (19) is rotatably connected to the pressing wheel (20), the contact rod (24) is fixedly connected to the pressing plate (25), the pressing plate (25) is slidably connected to the mounting frame (22), and the cross-section of the pressing plate (25) is "L"-shaped.

2. A contact pressure detection device for a pantograph contact line according to claim 1, characterized in that: The fixing component includes support blocks (27) provided at the top of the base (1) and on both sides of the through-hole (21), a placement through-hole (28) opened on one side of the support block (27) to provide a placement space, a screw rod (29) provided on the top of the support block (27) for driving, and a pressing block (30) provided at the bottom of the screw rod (29) for fixing the contact wire. The screw rod (29) is screwed to the support block (27), the screw rod (29) is rotatably connected to the pressing block (30) and does not come off, and the pressing block (30) is movably connected to the placement through-hole (28).

3. A contact pressure detection device for a pantograph contact line according to claim 2, characterized in that: A plurality of clamping blocks (31) arranged evenly are provided at the bottom of the pressing block (30), and the cross-section of the clamping block (31) is arc-shaped.

4. A contact pressure detection device for a pantograph contact line according to claim 2, characterized in that: A first anti-slip pad (32) is laid at the bottom of the placement through-hole (28), a second anti-slip pad (33) is laid at the inner top of the pressing block (30), and both the first anti-slip pad (32) and the second anti-slip pad (33) are arc-shaped.

5. A contact pressure detection device for a pantograph contact line according to claim 1, characterized in that: A guide rod (34) is provided at the bottom of the support frame (26), a spring (35) for support is sleeved outside the guide rod (34), and the spring (35) is fixedly connected to the support frame (26).

6. A contact pressure detection device for a pantograph contact line according to claim 1, characterized in that: Limit blocks (36) for guiding are respectively provided on both sides of the sliding block (13), limit grooves (37) are respectively opened on both sides of the movable through-hole (12), and the limit blocks (36) are slidably connected to the limit grooves (37).

7. A contact pressure detection device for a pantograph contact line according to claim 1, characterized in that: Arc-shaped portions (211) for sliding are respectively provided on both sides of the through-hole (21), and the cross-section of the arc-shaped portion (211) is arc-shaped.