Rail transit guide shaft hydraulic straightening clamping device

Abstract

The utility model provides a rail transit guide shaft hydraulic straightening clamping device belongs to mechanical processing and maintenance technical field, including support mechanism, including support frame, fixedly connected in the reinforcing rod of support frame lateral wall and the adjusting assembly of fixedly connected in support frame lateral wall, the utility model discloses through screw rod drive both sides connecting seat synchronous opposite or reverse movement, realizes the quick adaptation of different length guide shaft, utilizes linear motor drive mounting base along slide rail movement, makes the pushing part can quick alignment guide shaft center, both sides first air cylinder synchronous push block from radial clamping guide shaft, effectively prevent the deflection in straightening process, second air cylinder drive moving seat drive resistance roller longitudinal compression guide shaft surface, forms the bidirectional restraint of radial and longitudinal, has strengthened the stability of clamping, and the rolling contact of resistance roller has reduced the friction with guide shaft surface, is convenient for position fine adjustment when fixing.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing and maintenance technology, specifically relating to a hydraulic straightening and clamping device for rail transit guide shafts. Background Technology

[0002] As a key load-bearing and positioning component of railway vehicle bogies, the development of guide shafts has evolved alongside the demands for high-speed and heavy-load railway transportation. Early guide shafts primarily used cast steel with simple structures. With advancements in materials science and mechanical manufacturing processes, they have gradually evolved into precision components made of high-strength alloy steel and subjected to heat treatment processes to enhance fatigue strength. In the modern rail transit field, guide shafts are widely used in the bogie systems of locomotives, EMUs, and subway vehicles, precisely guiding wheelsets along the track and transmitting longitudinal traction and lateral guiding forces. Their geometric accuracy and mechanical properties directly affect the smoothness, safety, and track wear life of train operation.

[0003] In actual maintenance, the guide shaft is prone to bending deformation due to long-term exposure to complex alternating loads. Traditional straightening equipment generally suffers from problems such as a single clamping and positioning method, difficulty in adapting to guide shafts of different specifications, and easy secondary displacement of the workpiece during the straightening force application process. These problems directly affect the straightening accuracy and maintenance efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic straightening and clamping device for rail transit guide shafts, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic straightening and clamping device for rail transit guide shafts includes, The support mechanism includes a support frame, a reinforcing rod fixedly connected to the side wall of the support frame, and an adjustment assembly fixedly connected to the side wall of the support frame; The clamping mechanism includes a slide rail disposed on the surface of the adjusting component, a movable plate movably connected to the side wall of the support frame, a sleeve sleeved on the surface of the movable plate, a movable component slidably connected to the surface of the slide rail, and an auxiliary component fixedly connected to the surface of the movable component.

[0006] As a preferred embodiment of this utility model, the adjustment assembly includes a fixed seat fixedly connected to the side wall of the support frame, and a lead screw connected to the inner wall of the fixed seat via a bearing.

[0007] As a preferred embodiment of the present invention, the adjusting assembly further includes a turntable fixedly connected to the end of the lead screw, and a connecting seat threadedly connected to the surface of the lead screw.

[0008] In a preferred embodiment of the present invention, the moving component includes a linear motor slidably connected to the surface of the slide rail, and a mounting base fixedly connected to the surface of the linear motor.

[0009] As a preferred embodiment of the present invention, the moving component further includes a first cylinder fixedly connected to the side wall of the mounting base, and a push block fixedly connected to the output end of the first cylinder.

[0010] As a preferred embodiment of the present invention, the auxiliary component includes a second cylinder fixedly connected to the side wall of the mounting base, and a movable seat fixedly connected to the output end of the second cylinder.

[0011] As a preferred embodiment of the present invention, the auxiliary component further includes an auxiliary frame fixedly connected to the side wall of the movable seat, and an abutting roller connected to the side wall of the auxiliary frame via a bearing.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the screw drive drives the connecting seats on both sides to move synchronously in opposite directions, realizing rapid adaptation to guide shafts of different lengths; the linear motor drives the mounting seat to move along the slide rail, so that the pushing component can quickly align with the center of the guide shaft, and the first cylinders on both sides synchronously push the blocks to clamp the guide shaft radially, effectively preventing deflection during the straightening process; the second cylinder drives the moving seat to drive the abutting roller to press the guide shaft surface longitudinally, forming a two-way constraint in the radial and longitudinal directions, which enhances the stability of the clamping. At the same time, the rolling contact of the abutting roller reduces the friction with the guide shaft surface, which facilitates fine-tuning of the position when fixing, so that the device can adapt to guide shafts of various specifications while ensuring the stability and efficiency of the straightening operation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the adjustment component of this utility model; Figure 3 This is a schematic diagram of the movable component of this utility model; Figure 4 This is a schematic diagram of the auxiliary components of this utility model.

[0014] In the diagram: 100, Support mechanism; 101, Support frame; 102, Reinforcing rod; 103, Adjustment component; 103a, Fixed seat; 103b, Lead screw; 103c, Turntable; 103d, Connecting seat; 200, Clamping mechanism; 201, Slide rail; 202, Moving plate; 203, Housing; 204, Moving component; 204a, Linear motor; 204b, Mounting seat; 204c, First cylinder; 204d, Pushing block; 205, Auxiliary component; 205a, Second cylinder; 205b, Moving seat; 205c, Auxiliary frame; 205d, Abutting roller. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example Reference Figures 1-4 This embodiment of the present invention provides a hydraulic straightening and clamping device for rail transit guide shafts, comprising: The support mechanism 100 includes a support frame 101, a reinforcing rod 102 fixedly connected to the side wall of the support frame 101, and an adjustment assembly 103 fixedly connected to the side wall of the support frame 101. The clamping mechanism 200 includes a slide rail 201 disposed on the surface of the adjusting component 103, a movable plate 202 movably connected to the side wall of the support frame 101, a sleeve 203 sleeved on the surface of the movable plate 202, a movable component 204 slidably connected to the surface of the slide rail 201, and an auxiliary component 205 fixedly connected to the surface of the movable component 204.

[0019] Specifically, the adjustment assembly 103 includes a fixed seat 103a fixedly connected to the side wall of the support frame 101, and a lead screw 103b connected to the inner wall of the fixed seat 103a via a bearing. The adjustment assembly 103 also includes a turntable 103c fixedly connected to the end of the lead screw 103b, and a connecting seat 103d threadedly connected to the surface of the lead screw 103b.

[0020] The fixed seat 103a has four parts, and the support frame 101 has two parts symmetrically installed on each side. One side is threadedly connected to the lead screw 103b, and the inner wall of the fixed seat 103a on the other side is fixedly connected to the limit rod to ensure the transmission effect of the lead screw 103b. At the same time, the setting of the limit rod ensures the smooth movement of the connecting seat 103d on the other side.

[0021] Furthermore, the moving component 204 includes a linear motor 204a slidably connected to the surface of the slide rail 201, and a mounting base 204b fixedly connected to the surface of the linear motor 204a. The moving component 204 also includes a first cylinder 204c fixedly connected to the side wall of the mounting base 204b, and a push block 204d fixedly connected to the output end of the first cylinder 204c.

[0022] The guide shafts are symmetrically arranged on the side walls of the connecting seats 103d on both sides to ensure convenient movement of the guide shafts and improve the smoothness of the device.

[0023] Preferably, the auxiliary component 205 includes a second cylinder 205a fixedly connected to the side wall of the mounting base 204b, and a movable base 205b fixedly connected to the output end of the second cylinder 205a. The auxiliary component 205 also includes an auxiliary frame 205c fixedly connected to the side wall of the movable base 205b, and an abutting roller 205d connected to the side wall of the auxiliary frame 205c by a bearing.

[0024] It should be noted that the setting of the abutting roller 205d facilitates a smoother fit when bonding with the track, while ensuring that the track will not be pushed due to the extension of the auxiliary frame 205c, thus preventing track deviation.

[0025] In use, the guide shaft to be aligned is placed on the surface of the moving plate 202. The linear motor 204a is started, causing the mounting base 204b to quickly align with the guide shaft. The first cylinders 204c on both sides are then activated, and they operate synchronously, moving the push block 204d. The push block 204d pushes the two sides of the guide shaft, initially fixing it in place. Then, the second cylinder 205a is activated, moving the moving base 205b, which in turn moves the auxiliary... The frame 205c moves, and the auxiliary frame 205c drives the abutment roller 205d to fit against the surface of the guide shaft. The abutment roller 205d fixes the guide shaft longitudinally to ensure the guide shaft is fixed. According to the guide shaft of different specifications, the lead screw 103b can be rotated. The lead screw 103b drives the connecting seat 103d to move. The two connecting seats 103d on both sides move in opposite directions or towards each other. The connecting seat 103d drives the moving plate 202 and the housing 203 to move, thereby adjusting the distance between the two sets of moving components 204 to adapt to guide shafts of different specifications.

[0026] In summary, through the reasonable configuration of the support mechanism 100 and the clamping mechanism 200, the guide shaft can be quickly aligned and initially clamped by the synchronous movement of the push blocks 204d on both sides when fixing the guide shaft, effectively avoiding the offset caused by unilateral force application; the abutting roller 205d in the auxiliary component 205 can adaptively fit along the surface of the guide shaft under the drive of the second cylinder 205a, forming a longitudinal constraint and enhancing the stability of clamping. At the same time, its rolling contact method reduces the frictional resistance during the adjustment process, making it easy to fine-tune the position of the guide shaft when fixing; the symmetrical arrangement of the lead screw 103b and the limit rod in the adjusting component 103 allows the connecting seats 103d on both sides to move smoothly in opposite directions or towards each other, driving the moving plate 202 and the housing 203 to adjust the distance, thereby adapting to guide shafts of different diameters, improving the versatility and operating efficiency of the device. The overall structure ensures reliable clamping while also taking into account the smoothness and convenience of the adjustment process.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hydraulic straightening and clamping device for rail transit guide shafts, characterized in that: include, The support mechanism (100) includes a support frame (101), a reinforcing rod (102) fixedly connected to the side wall of the support frame (101), and an adjustment assembly (103) fixedly connected to the side wall of the support frame (101). The clamping mechanism (200) includes a slide rail (201) disposed on the surface of the adjusting component (103), a movable plate (202) movably connected to the side wall of the support frame (101), a sleeve (203) sleeved on the surface of the movable plate (202), a movable component (204) slidably connected to the surface of the slide rail (201), and an auxiliary component (205) fixedly connected to the surface of the movable component (204).

2. The hydraulic straightening and clamping device for rail transit guide shafts according to claim 1, characterized in that: The adjustment assembly (103) includes a fixed seat (103a) fixedly connected to the side wall of the support frame (101), and a lead screw (103b) connected to the inner wall of the fixed seat (103a) via a bearing.

3. The hydraulic straightening and clamping device for rail transit guide shafts according to claim 2, characterized in that: The adjustment assembly (103) also includes a turntable (103c) fixedly connected to the end of the lead screw (103b) and a connecting seat (103d) threadedly connected to the surface of the lead screw (103b).

4. The hydraulic straightening and clamping device for rail transit guide shafts according to claim 3, characterized in that: The moving component (204) includes a linear motor (204a) slidably connected to the surface of the slide rail (201) and a mounting base (204b) fixedly connected to the surface of the linear motor (204a).

5. A hydraulic straightening and clamping device for rail transit guide shafts according to claim 4, characterized in that: The moving component (204) further includes a first cylinder (204c) fixedly connected to the side wall of the mounting base (204b), and a push block (204d) fixedly connected to the output end of the first cylinder (204c).

6. The hydraulic straightening and clamping device for rail transit guide shafts according to claim 5, characterized in that: The auxiliary component (205) includes a second cylinder (205a) fixedly connected to the side wall of the mounting base (204b), and a movable base (205b) fixedly connected to the output end of the second cylinder (205a).

7. A hydraulic straightening and clamping device for rail transit guide shafts according to claim 6, characterized in that: The auxiliary component (205) further includes an auxiliary frame (205c) fixedly connected to the side wall of the movable seat (205b), and an abutting roller (205d) connected to the side wall of the auxiliary frame (205c) by a bearing.

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