Pantograph frame deformation correction tool

Abstract

The utility model discloses a pantograph frame deformation correction frock relates to rail transit equipment maintenance technical field, include: workstation, clamp arm, the two sides symmetrical setting of the pressing plate, its moving path is aligned with the deformation of the pantograph, the first arc part and the second arc part, the width of the lower triangle area of this scheme is greater than the width of the deformation of the pantograph, when the pantograph deformation enters into the lower triangle area, two clamp arms rotate to both sides, have the effect of guiding rotation, when the pressing plate goes up, the pantograph extrusion second arc part intersection, make second arc part and opposite first arc part contact, the upper triangle area reaches the steady state, can complete the traction to the deformation of the pantograph, can automatic guide and form the lifting area, need not the deliberate operation spacing structure to carry out the connection to the pantograph, and the operation is simple and convenient and quick.

Description

Technical Field

[0001] This utility model relates to the technical field of rail transit equipment maintenance, specifically to a pantograph frame deformation correction tool. Background Technology

[0002] As a key component for rail transit vehicles to obtain electrical energy from the overhead contact line, the stability of the pantograph's frame structure directly affects its performance and the safety of train operation. During long-term use, the pantograph frame is prone to localized deformation due to frequent exposure to pressure and vibration from the contact line, as well as environmental factors.

[0003] During the correction process, pressure or tension can be applied to the deformed area using a power mechanism to achieve correction. However, when the deformation area is stretched or compressed, a connecting structure is required to connect the power mechanism and the pantograph. Commonly used connecting structures require manual operation during use and cannot automatically adapt to the guide and form a stable support area. Therefore, those skilled in the art have provided a pantograph frame deformation correction fixture to solve the aforementioned problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a pantograph frame deformation correction fixture.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A pantograph frame deformation correction fixture includes:

[0007] A workbench, used to secure the pantograph;

[0008] The pressure plate is movable along a direction perpendicular to the worktable, and its movement path is aligned with the deformed part of the pantograph.

[0009] Two clamping arms are symmetrically arranged on both sides of the pressure plate, including:

[0010] The first arc-shaped portion is rotatably disposed on the side of the pressure plate, and the two first arc-shaped portions are symmetrical about the length direction of the pantograph;

[0011] The second arc-shaped part is fixed at the bottom of the first arc-shaped part. The two second arc-shaped parts are arranged at an intersection. An upper triangular area and a lower triangular area are formed above and below the intersection of the two second arc-shaped parts, respectively. The width of the lower triangular area is greater than the width of the pantograph deformation area.

[0012] When the pressure plate moves downward, the pantograph enters between the two first arc-shaped parts from the lower triangular area. When the pressure plate moves upward, the pantograph squeezes the intersection of the second arc-shaped parts, causing the second arc-shaped parts to contact the opposite first arc-shaped parts. The upper triangular area then lifts the deformed part of the pantograph upward.

[0013] Preferably, the second arc-shaped portion is provided with uniformly spaced relief grooves, and the multiple relief grooves on the two second arc-shaped portions are staggered, with the two second arc-shaped portions intersecting to form an intersection.

[0014] Preferably, the second arc-shaped portion is arc-shaped, and the convex surface of the second arc-shaped portion faces downward.

[0015] Preferably, in the natural state, the included angle at the intersection of the lower triangular area is an acute angle; and in the pantograph-lifting state, the included angle at the intersection of the upper triangular area is an acute angle.

[0016] Preferably, a sliding frame is slidably arranged on the workbench along the length of the pantograph, and a power source for raising and lowering the pressure plate is provided on the sliding frame.

[0017] In summary, this utility model has the following beneficial technical effects:

[0018] 1. The width of the lower triangular area is greater than the width of the pantograph deformation area. When the pantograph deformation area enters the lower triangular area, the two clamping arms rotate to both sides, which has the effect of guiding the rotation.

[0019] 2. When the pressure plate moves upward, the pantograph presses against the intersection of the second arc-shaped part, causing the second arc-shaped part to contact the opposite first arc-shaped part. The upper triangular area reaches a stable state, which can complete the traction of the pantograph deformation area. During the process, it can automatically guide and form a lifting area. There is no need to specially operate the limiting structure to connect the pantograph. The operation is simple, convenient and quick. Attached Figure Description

[0020] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the clamping arm structure in its natural state.

[0023] Figure 3 This is a schematic diagram of the clamping arm structure in the lifting state of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Pressure plate; 3. Clamping arm; 11. Sliding frame; 31. First arc-shaped part; 32. Second arc-shaped part; 33. Relief groove. Detailed Implementation

[0025] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0026] A pantograph frame deformation correction fixture, referring to Figure 1-3 ,include:

[0027] Workbench 1 is used to fix the pantograph, providing a stable support base for the entire correction process, ensuring that the pantograph will not shift during the correction operation, and guaranteeing the accuracy of the correction. A sliding frame 11 is slidably mounted on the workbench 1 along the length of the pantograph via a track. The sliding frame 11 is equipped with a power source for raising and lowering the pressure plate 2.

[0028] The pressure plate 2 is movable along a direction perpendicular to the worktable 1, its movement path aligned with the deformed area of ​​the pantograph. The movement of the pressure plate 2 can be achieved using existing drive devices, such as hydraulic, pneumatic, electric, or screw-thread structures. By controlling the drive device, the movement distance and speed of the pressure plate 2 can be precisely controlled, thereby achieving precise control over the correction force and process. The lower surface of the pressure plate 2 can be directly used to press against the deformed area of ​​the pantograph.

[0029] Two clamping arms 3 are symmetrically arranged on both sides of the pressure plate 2, including a first arc-shaped part 31 and a second arc-shaped part 32.

[0030] The first arc-shaped portion 31 is rotatably disposed on the side of the pressure plate 2, and the two first arc-shaped portions 31 are symmetrical about the length direction of the pantograph. The rotatable connection between the first arc-shaped portion 31 and the pressure plate 2 can be achieved by means of a pivot connection or the like, so that the first arc-shaped portion 31 can rotate flexibly around the connection point to adapt to changes in the shape and position of the pantograph during the correction process.

[0031] The second arc-shaped portion 32 is fixed to the bottom of the first arc-shaped portion 31. The two second arc-shaped portions 32 are arranged intersectingly, and an upper triangular area and a lower triangular area are formed above and below the intersection of the two second arc-shaped portions 32, respectively.

[0032] The width of the lower triangular area is greater than the width of the pantograph deformation area, which facilitates the rotation of the two clamping arms 3 to both sides when the pantograph deformation area enters the lower triangular area during the downward movement of the pressure plate 2. This has a guiding rotation effect, the lower triangular area increases and then disappears, and the pantograph enters the space between the two first arc-shaped parts 31 from the lower triangular area. Under the action of gravity, they cross and reappear to form the upper and lower triangular areas.

[0033] Next, when the pressure plate 2 moves upward, the pantograph presses the intersection of the second arc-shaped part 32, causing the second arc-shaped part 32 to contact the opposite first arc-shaped part 31. The upper triangular area reaches its maximum and stable state. The upper triangular area lifts the deformed part of the pantograph upward, which can complete the traction of the deformed part of the pantograph. During this process, a lifting area can be automatically formed. There is no need to specially operate the limiting structure to connect the pantograph. The operation is simple, convenient and quick.

[0034] The second arc-shaped portion 32 is provided with evenly spaced relief grooves 33, and the multiple relief grooves 33 on the two second arc-shaped portions 32 are staggered. The two second arc-shaped portions 32 pass through each other to form an intersection. The stability of the intersection structure is improved by precise interlocking, the contact area is increased and the stress is dispersed to avoid deformation and damage.

[0035] The second arc-shaped portion 32 is arc-shaped, with its convex surface facing downwards. A downward-facing convex surface facilitates guidance and reduces resistance. During the lifting process, its concave surface is used to better surround the sides and bottom of the pantograph, improving stability.

[0036] In its natural state, the angle at the intersection of the lower triangular area is acute, making it easier to guide and further reducing resistance; when the pantograph is pulled up, the angle at the intersection of the upper triangular area is acute, which can better surround the sides and bottom of the pantograph, further improving stability.

[0037] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A pantograph frame deformation correction fixture, characterized in that, include: Workbench (1), which is used to fix pantograph; The pressure plate (2) can be moved along a direction perpendicular to the worktable (1), and its moving path is aligned with the deformation of the pantograph; Two clamping arms (3) are symmetrically arranged on both sides of the pressure plate (2), including: The first arc-shaped part (31) is rotatably disposed on the side of the pressure plate (2), and the two first arc-shaped parts (31) are symmetrical about the length direction of the pantograph; The second arc-shaped part (32) is fixed at the bottom of the first arc-shaped part (31). The two second arc-shaped parts (32) are arranged to cross each other. An upper triangular area and a lower triangular area are formed above and below the intersection of the two second arc-shaped parts (32), respectively. The width of the lower triangular area is greater than the width of the pantograph deformation area. When the pressure plate (2) moves downward, the pantograph enters between the two first arc-shaped parts (31) from the lower triangular area. When the pressure plate (2) moves upward, the pantograph squeezes the intersection of the second arc-shaped part (32), so that the second arc-shaped part (32) contacts the opposite first arc-shaped part (31), and the upper triangular area lifts the deformation of the pantograph upward.

2. The pantograph frame deformation correction fixture according to claim 1, characterized in that: The second arc-shaped portion (32) is provided with a relief groove (33) evenly, and the multiple relief grooves (33) on the two second arc-shaped portions (32) are staggered, and the two second arc-shaped portions (32) pass through each other to form an intersection.

3. The pantograph frame deformation correction fixture according to claim 2, characterized in that: The second arc-shaped portion (32) is configured to be arc-shaped, and the convex surface of the second arc-shaped portion (32) faces downward.

4. The pantograph frame deformation correction fixture according to claim 3, characterized in that: In its natural state, the included angle at the intersection of the lower triangular area is an acute angle; in the pantograph-lifting state, the included angle at the intersection of the upper triangular area is an acute angle.

5. The pantograph frame deformation correction fixture according to claim 1, characterized in that: A sliding frame (11) is slidably arranged on the workbench (1) along the length of the pantograph, and a power source for raising and lowering the pressure plate (2) is provided on the sliding frame (11).

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