A vehicle-mounted railway contact network pull-out value adjustment device

Abstract

This invention relates to the field of railway overhead line operation and maintenance, specifically a vehicle-mounted railway overhead line pullout adjustment device that measures and adjusts the pullout value of the overhead line. Its main structure includes a flexible positioning mechanism, a pullout adjustment mechanism, a measuring mechanism, a line laser sensor, and a positioning plate. Compared to current manual measurement and adjustment methods, this device can automatically measure and adjust the pullout value of the overhead line, reducing manpower and improving operational efficiency and quality.

Description

Technical Field

[0001] The invention belongs to the field of railway contact network operation and maintenance, and in particular is a vehicle-mounted railway contact network pull-out value adjustment device. Background Art

[0002] Catenary power supply is a common power supply network method for electrified railways. Power is supplied through the contact between the pantograph above the train and the catenary. Therefore, the performance of the catenary directly affects the current collection quality and safe operation of electric locomotives. However, the catenary positioning components are exposed to the field environment for a long time. During normal operation, they are subjected to shock, vibration, temperature fluctuations, corrosion, and wear, which can cause slight deformation of the positioning components. This gradual accumulation of deformation eventually manifests as an excessive pullout value, seriously affecting the safety of railway train operations. Therefore, it is necessary to promptly address the deformation of the positioning components and adjust the catenary pullout value. Currently, the catenary pullout value is adjusted manually by two people using a ladder car to access the elevated working surface. One person stabilizes the catenary while the other opens the positioning ring and re-positions and locks it. Ground personnel then re-measure and confirm that it is adjusted correctly. Manual adjustment requires a lot of manpower and has low efficiency. The work quality is also significantly affected by subjective factors. Therefore, it is necessary to provide a mechanical device that can automatically measure and adjust the catenary pullout value.

[0003] The technical problem to be solved by the present invention is to provide a mechanical device which can automatically measure and adjust the contact network pull-out value, so as to reduce manpower input and improve operation efficiency and quality. Summary of the Invention

[0004] The present invention solves the above problems through the following technical solutions:

[0005] A vehicle-mounted railway contact network pullout value adjustment device (hereinafter referred to as: this device) is installed on a track maintenance vehicle onboard platform and moves with the track maintenance vehicle, comprising: a flexible positioning mechanism (1), a pullout value adjustment mechanism (2), a measuring mechanism (3), a line laser sensor (4) and a positioning plate (5); the flexible positioning mechanism (1) is installed on the positioning plate (5) and flexibly positions the pullout value adjustment mechanism (2) fixed above it; the pullout value adjustment mechanism (2) is installed above the flexible positioning mechanism (1) and contacts the contact network and positioning components (wedge-shaped member, positioning wire clamp, hanging string wire clamp, hanging string frame), and adjusts the contact network pullout value by applying pressure to the wedge-shaped member so that it and the positioner undergo plastic deformation; the various components of the measuring mechanism (3) are installed on the flexible positioning mechanism (1) and the pullout value adjustment mechanism (2), and can measure the over-limit value and direction of the contact network pullout value; the line laser sensor (4) is fixed on the rear end of the positioning plate (5) and measures the contact network pullout value adjusted by the device to inspect the operation quality of the device.

[0006] Preferably, the flexible positioning mechanism (1) is based on the base (6), the base top plate (7) is fixed to the base (6) by screws, the guide sleeve (8) is glued to the positioning hole of the base top plate (7), the sliding guide post (10) is fixed to the bottom surface of the floating frame (11) by bolts, the guide sleeve (8) and the sliding guide post (10) are slidably matched, the spring support mechanism (9) is positioned and installed with the sliding guide post (10) as the center, the positioning ring 1 (15) and the positioning ring 2 (16) are in contact with the bottom surface of the floating frame (11) and the base top plate (7) respectively, the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) are fixed in parallel in the floating frame (11) by bolts, and the high-pressure rubber tube (14) is connected to the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) and provides power for transporting compressed air to them.

[0007] Furthermore, the pull-out value adjustment mechanism (2) is based on the guide frame (19), the shifting rod (20) is fixed to the threaded hole of the single-side platform of the guide frame (19) by means of a thread, the correction wheel 1 (21), the correction wheel 2 (22), the correction wheel 3 (23), and the correction wheel 4 (24) are sequentially installed behind the shifting rod (20) by means of threaded pins, the industrial belt (25) is installed on the wheel set consisting of the correction wheels and can rotate freely around them, and the platform on the other side of the guide frame (19) has the same structure as the above-mentioned one.

[0008] Preferably, the semicircular industrial camera 1 (28) and the semicircular industrial camera 2 (29) in the measuring mechanism (3) are symmetrically fixed to the top surface of the extended end of the base (6), the scale (26) is glued to the bottom surface of the extended end of the floating frame (11), and the pointer (27) is fixed to the end surface of the guide frame (19) by screws.

[0009] The pointer (27) of the measuring mechanism (3) of the device moves relative to the scale (26) along with the guide frame (19), and the semicircular industrial camera 1 (28) and the semicircular industrial camera 2 (29) below collect images of the contact network and the pointer movement in the forward direction, upload them to the on-board computer, and calculate the pull-out value exceeding the limit value and direction through the image recognition system, providing data support for the control system.

[0010] When the device is working under the contact network with a pull-out value within the limit, the guide frame (19) is moved along the cylinder body direction on the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) by the pressure of the contact network and its positioning components, and the spring support mechanism (9) is compressed by the pressure; when the device is working under the contact network with a pull-out value exceeding the limit, the guide frame (19) is filled with compressed air before it moves to the critical point where the pull-out value exceeds the limit. , so that the guide frame (19) fixed on the cylinder actuator and the components installed thereon generate pressure on the contact network positioning assembly, causing the wedge and the positioner to produce plastic deformation to adjust the contact network pull-out value; after the pull-out value adjustment is completed, the magnetically coupled rodless cylinder 1 (12) and the magnetically coupled rodless cylinder 2 (13) release the compressed air, and the guide frame (19) resumes free movement on the cylinder. At the same time, the linear laser sensor (4) measures the horizontal distance between the contact network positioning assembly and it to detect the adjustment effect.

[0011] The beneficial effects of the present invention are:

[0012] Advantage 1: [Automatic measurement and adjustment of contact network pull-out value] This device can be installed on the on-board platform of a track maintenance vehicle and work as the vehicle moves along the track. It adopts a combination of mechanical structure and sensors to realize the contact network pull-out value measurement and the contact network positioning component function of adjusting the pull-out value in the section where the pull-out value exceeds the limit.

[0013] Advantage 2: [Reduced manpower input] The current manual method of adjusting the contact network pull-out value requires at least three operators. After using this device, unmanned operation is basically achieved, greatly reducing manpower input.

[0014] Advantage three: [Higher efficiency] This device directly acts on the positioning component, causing the wedge and the positioner to undergo plastic deformation, thereby adjusting the contact network pull-out value. Compared with the manual operation method, the present invention has the characteristics of no disassembly and automatic operation, making its efficiency higher than the manual operation method.

[0015] Advantage 4: [More stable quality] This device uses image recognition to measure the value and direction of the pull-out value exceeding the limit. At the same time, it is equipped with a line laser sensor to measure the adjusted contact network pull-out value to determine the pull-out value adjustment effect. Compared with the manual measurement method using a digital vernier caliper, this eliminates the influence of human subjective factors on the measurement results, making the operation quality more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a vehicle-mounted railway contact network pull-out value adjustment device;

[0017] Figure 2 A schematic diagram of the structure of a flexible positioning mechanism of a vehicle-mounted railway contact network pull-out value adjustment device;

[0018] Figure 3 A schematic structural diagram of a pull-out value adjustment mechanism of a vehicle-mounted railway contact network pull-out value adjustment device;

[0019] Figure 4 A schematic diagram of the measuring mechanism structure of a vehicle-mounted railway contact network pull-out value adjustment device;

[0020] Figure 5 A diagram of a vehicle-mounted railway contact network pull-out value adjustment device working under the contact network.

[0021] Figure numerals: flexible positioning mechanism (1), pull-out value adjustment mechanism (2), measuring mechanism (3), line laser sensor (4), positioning plate (5), base (6), base top plate (7), guide sleeve (8), spring support mechanism (9), sliding guide guide column (10), floating frame (11), magnetically coupled rodless cylinder 1 (12), magnetically coupled rodless cylinder 2 (13), high-pressure rubber tube (14), positioning ring 1 (15), positioning ring 2 (16), outer circle support spring (17), inner circle support spring (18), guide frame (19), shift rod (20), correction wheel 1 (21), correction wheel 2 (22), correction wheel 3 (23), correction wheel 4 (24), industrial belt (25), ruler (26), pointer (27), semicircular industrial camera 1 (28), semicircular industrial camera 2 (29). DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1 、 2 As shown in Figures 3 and 4, a vehicle-mounted railway contact network pull-out value adjustment device of the present invention comprises a flexible positioning mechanism (1), a pull-out value adjustment mechanism (2), a measuring mechanism (3), a line laser sensor (4) and a positioning plate (5), and the parts of each mechanism are assembled according to the structure shown in the figure.

[0024] like Figure 1 、 2 As shown, the flexible positioning mechanism of the present invention works as follows:

[0025] Definition of movement direction: It is stipulated that the movement direction of the actuator of the magnetic coupling rodless cylinder 1 (12) along the cylinder body is the horizontal direction, and the guiding direction of the sliding guide column (10) is the vertical direction. The definition will not be repeated below;

[0026] Working mode: The spring support mechanism (9) of the flexible positioning mechanism (1) expands and contracts as the vertical force on the actuators of the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) changes, and reaches a new equilibrium position; when the contact network pull-out value does not exceed the limit, the cylinders at both ends of the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) are not filled with compressed air, and the actuators move horizontally with the guide frame (19); when the contact network pull-out value exceeds the limit, the actuators of the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) move horizontally with the guide frame (19) to the critical point where the pull-out value exceeds the limit, and the on-board air compressor fills the cylinders at one end of the horizontal speed direction of the actuators of the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) through the high-pressure rubber tube (14), so that the actuators generate a force opposite to the horizontal speed direction on the guide frame (19) fixed thereon. After the adjustment work is completed, the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) release the compressed air, and the actuator resumes its free movement thereon.

[0027] like Figure 1 、 3 As shown, the pull-out value adjustment mechanism of the present invention works as follows:

[0028] Definition of movement direction: The direction pointed by pointer (27) is defined as the forward direction, and the definition will not be repeated below;

[0029] Working mode: When the pull-out value adjustment mechanism (2) moves forward with the track inspection vehicle, the lever (20) guides the contact network positioning assembly (wedge, positioning wire clamp, hanging string clamp, hanging string frame), so that the contact network and its positioning assembly enter the U-shaped groove of the guide frame (19). The guide frame (19) is subjected to the pressure of the contact network and its positioning assembly. The vertical component of the pressure compresses the spring support mechanism (9) of the flexible positioning mechanism (1), and the compression amount varies with the vertical component of the pressure. When the contact network pull-out value does not exceed the limit, the guide frame (19) is subjected to the pressure of the contact network and the positioning assembly. The horizontal component of the pressure causes the guide frame (19) and the magnetic coupling type rodless air The cylinder 1 (12) and the magnetically coupled rodless cylinder 2 (13) actuator unit move horizontally along the cylinder body; when the contact network pull-out value exceeds the limit, the industrial belt (25) contacts the string hanger and the wedge to generate static friction, and the industrial belt (25) rotates around the wheel group, so that the string hanger and the wedge pass through the correction wheel 1 (21), the correction wheel 2 (22), the correction wheel 3 (23), and the correction wheel 4 (24) in turn. At the same time, due to the action of the flexible positioning mechanism (1), the guide frame (19), the correction wheel and the industrial belt (25) generate pressure on the contact network positioning assembly, causing the wedge and the positioner to undergo plastic deformation to adjust the contact network pull-out value.

[0030] like Figure 1 、 4 As shown, the measuring mechanism and line laser sensor of the present invention work in the following manner:

[0031] The pointer (27) of the measuring mechanism (3) moves relative to the scale (26) along with the pull-out value adjustment mechanism (2), and the semicircular industrial camera 1 (28) and the semicircular industrial camera 2 (29) below collect images of the contact network and the pointer movement, upload them to the on-board computer, and calculate the pull-out value exceeding the limit value and direction through the image recognition system, providing data support for the on-board control system;

[0032] After the pull-out value adjustment mechanism (2) adjusts the contact network positioning component, the line laser sensor (4) measures the distance between it and the contact network positioning component and transmits the data to the onboard computer to calculate the adjusted contact network pull-out value and detect the adjustment effect.

[0033] like Figure 5 As shown, the pull-out value adjustment mechanism, the flexible positioning mechanism, the measuring mechanism and the line laser sensor in the present invention cooperate in the following working mode:

[0034] When the device moves forward with the maintenance vehicle, the pointer (27) fixed on the front end of the guide frame (19) slides horizontally relative to the scale (26) glued to the bottom surface of the extended end of the floating frame (11), and the semicircular industrial camera 1 (28) and the semicircular industrial camera 2 (29) installed on both sides of the top surface of the extended end of the base (6) below collect the images of the contact network and the pointer movement in the forward direction, upload them to the on-board computer, and calculate the pull-out value exceeding the limit value and direction through the image recognition system to control the air compressor to fill and release compressed air into the high-pressure rubber tube (14);

[0035] When the device is working, the contact network and the positioning assembly are in full contact with the U-shaped groove of the guide frame (19), and the vertical component of the pressure is transmitted to the spring support mechanism (9), forcing it to expand and contract, and the pull-out value adjustment mechanism (2) moves vertically downward to a new equilibrium point, and the equilibrium position changes with the pressure;

[0036] When the contact network pull-out value does not exceed the limit, since compressed air is not injected into the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13), the horizontal component of the pressure of the contact network and the positioning assembly on the guide frame (19) causes it and the actuator fixed thereto to slide freely along the cylinder body of the magnetic coupling rodless cylinder;

[0037] When the contact network pull-out value exceeds the limit, the actuators of the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) move horizontally with the guide frame (19) to the critical point where the pull-out value exceeds the limit, and the on-board air compressor fills the cylinders of the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) actuators with compressed air in the horizontal speed direction through the high-pressure rubber tube (14), so that the actuators generate a force opposite to the horizontal speed direction on the guide frame (19) fixed thereon, and at the same time, the vertical upward force generated by the elastic action of the spring support mechanism (9) causes the guide frame (19) and the components fixed thereon to generate pressure on the contact network positioning assembly, causing the wedge and the positioner to produce plastic deformation to adjust the contact network pull-out value;

[0038] After the pull-out value adjustment is completed, the magnetically coupled rodless cylinder 1 (12) and the magnetically coupled rodless cylinder 2 (13) release the compressed air, and the guide frame (19) resumes its free movement thereon. At the same time, the line laser sensor (4) installed at the rear end of the positioning plate (5) measures the horizontal distance between the contact network positioning component and it, and detects the adjustment effect.

[0039] The present invention is installed on a platform mounted on a track maintenance vehicle and operates as the track maintenance vehicle moves. When the device is operating under the contact network, power is supplied to the semicircular industrial camera 1 (28), the semicircular industrial camera 2 (29), and the line laser sensor (4) through the electrical circuit; when adjusting the contact network positioning component whose pull-out value exceeds the limit, the on-board air compressor fills compressed air into the high-pressure rubber tube (14).

[0040] After the present invention completes the operation, it is disconnected from the contact network, the onboard air compressor station stops working, and the power supply to the semicircular industrial camera 1 (28), the semicircular industrial camera 2 (29) and the line laser sensor (4) is stopped, thus ending the task.

Claims

1. A vehicle-mounted railway contact network pull-out value adjustment device, characterized in that: include: A flexible positioning mechanism (1), a pull-out value adjustment mechanism (2), a measuring mechanism (3), a line laser sensor (4) and a positioning plate (5) can realize the automatic adjustment function of the pull-out value of the railway contact network; the flexible positioning mechanism (1) includes: a base (6), a base top plate (7), a guide sleeve (8), a spring support mechanism (9), a sliding guide post (10), a floating frame (11), a magnetic coupling rodless cylinder 1 (12), a magnetic coupling rodless cylinder 2 (13), a high-pressure rubber tube (14), a positioning ring 1 (15), a positioning ring 2 (16), an outer circle support spring (17), and an inner circle support spring (18); the pull-out value adjustment mechanism (2) includes: a guide frame (19), a shifting rod (20), a correction wheel 1 (21 ), correction wheel 2 (22), correction wheel 3 (23), correction wheel 4 (24), industrial belt (25); the measuring mechanism (3) includes: a ruler (26), a pointer (27), a semicircular industrial camera 1 (28), a semicircular industrial camera 2 (29); the flexible positioning mechanism (1) is based on the base (6), the base top plate (7) is fixed to the base (6) by screws, the guide sleeve (8) is glued to the positioning hole of the base top plate (7), the sliding guide post (10) is fixed to the bottom surface of the floating frame (11) by bolts, the guide sleeve (8) is slidably matched with the sliding guide post (10), the spring support mechanism (9) is positioned and installed with the sliding guide post (10) as the center, and is connected to the base top plate (7), the floating frame (11) and the floating frame (11). The bottom surface of the frame (11) is in contact with the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) are fixed in parallel in the floating frame (11) by bolts; the spring support mechanism (9) can be freely extended and contracted, including: a coaxial positioning ring 1 (15), a positioning ring 2 (16), an outer circle support spring (17), and an inner circle support spring (18), and the ends of the outer circle support spring (17) and the inner circle support spring (18) are respectively welded to the two positioning rings; the pull-out value adjustment mechanism (2) is based on the guide frame (19), the shift rod (20) is fixed in the threaded hole of the single-side platform of the guide frame (19) by threads, and the correction wheel 1 (21), the correction wheel 2 (22), the correction wheel 3 (23), and the correction wheel 4 (24) are fixed by threads. The pins are sequentially mounted behind the lever (20), the industrial belt (25) is mounted on the wheel set consisting of the correction wheel and can rotate freely around the wheel set, and the platform on the other side of the guide frame (19) is the same as the above structure; the semicircular industrial camera 1 (28) and the semicircular industrial camera 2 (29) in the measuring mechanism (3) are symmetrically fixed to the top surface of the extended end of the base (6), the scale (26) is glued to the bottom surface of the extended end of the floating frame (11), and the pointer (27) is fixed to the end surface of the guide frame (19) by screws; the positioning plate (5) is fixed to the lifting platform of the rail inspection vehicle by bolt connection; the line laser sensor (4) is fixed to the rear end of the positioning plate (5) by screws; the base (6) is fixed to the front end of the positioning plate (5) by screws;The magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) are connected to a high-pressure rubber tube (14), which is connected to a vehicle-mounted air compressor, and the cylinders rely on the input of compressed air to work; the guide frame (19) and the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) actuators are fixed by screws.

2. The vehicle-mounted railway contact network pull-out value adjustment device according to claim 1, characterized in that: It is stipulated that the direction of movement of the actuator of the magnetic coupling rodless cylinder 1 (12) along the cylinder body is horizontal, and the guiding direction of the sliding guide column (10) is vertical, and the definition is not repeated below; the spring support mechanism (9) of the flexible positioning mechanism (1) expands and contracts as the actuators of the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) are subjected to changes in the vertical force, and reaches a new equilibrium position; when the contact network pull-out value of the flexible positioning mechanism (1) does not exceed the limit, the cylinders at both ends of the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) are not filled with compressed air, and the actuators move horizontally on the cylinder body along with the guide frame (19); the flexible When the contact network pull-out value of the positioning mechanism (1) exceeds the limit, the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) actuators move horizontally with the guide frame (19) to the critical point of the pull-out value exceeding the limit, and the on-board air compressor fills the cylinder at one end of the actuator in the horizontal speed direction through the high-pressure rubber tube (14), so that the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) actuators and the guide frame (19) fixed thereon are subjected to a horizontal force opposite to the pull-out value exceeding the limit direction. After the contact network pull-out value returns to the normal range, the magnetic coupling rodless cylinder 1 (12) and the magnetic coupling rodless cylinder 2 (13) release the compressed air.

3. The vehicle-mounted railway overhead contact network pullout value adjustment device according to claim 2, characterized in that: The direction pointed by the pointer (27) is defined as the forward direction, which will not be repeated below. When the pull-out value adjustment mechanism (2) moves forward with the track inspection vehicle, the lever (20) guides the contact network positioning assembly, wherein the contact network positioning assembly includes a wedge, a positioning wire clamp, a string clamp, and a string hanger, so that the contact network and its positioning assembly enter the U-shaped groove of the guide frame (19). The guide frame (19) is subjected to the pressure of the contact network and its positioning assembly, and the vertical component of the pressure compresses the spring support mechanism (9) of the flexible positioning mechanism (1), and the compression amount varies with the vertical component of the pressure. When the pull-out value of the contact network is within the limit, the guide frame (19) is subjected to the pressure of the contact network and the positioning assembly, and the horizontal component of the pressure compresses the spring support mechanism (9) of the flexible positioning mechanism (1). The guide frame (19) and the magnetically coupled rodless cylinder 1 (12) and the magnetically coupled rodless cylinder 2 (13) fixed thereto move horizontally along the cylinder body; when the contact network pull-out value of the pull-out value adjustment mechanism (2) exceeds the limit, the industrial belt (25) contacts the string hanger and the wedge to generate static friction, and the industrial belt (25) rotates around the wheel group, so that the string hanger and the wedge pass through the correction wheel 1 (21), the correction wheel 2 (22), the correction wheel 3 (23), and the correction wheel 4 (24) in sequence. At the same time, due to the action of the flexible positioning mechanism (1), the guide frame (19), the correction wheel and the industrial belt (25) generate pressure on the contact network positioning assembly, causing the wedge and the positioner to produce plastic deformation to adjust the contact network pull-out value.

4. The vehicle-mounted railway overhead contact network pullout value adjustment device according to claim 3, characterized in that: The pointer (27) of the measuring mechanism (3) moves relative to the scale (26) along with the pull-out value adjustment mechanism (2). The semicircular industrial camera 1 (28) and the semicircular industrial camera 2 (29) installed below collect images of the contact network and the pointer movement, upload them to the on-board computer, and calculate the pull-out value exceeding the limit value and direction through the image recognition system, providing data support for the on-board control system.

5. The vehicle-mounted railway overhead contact network pull-out value adjustment device according to claim 3, characterized in that: After the pull-out value adjustment mechanism (2) adjusts the contact network positioning component, the line laser sensor (4) measures the distance between itself and the contact network positioning component, and transmits the data to the onboard computer to calculate the adjusted contact network pull-out value and detect the adjustment effect.

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