A flame cutting trolley

By designing guide rods and guide components on the flame cutting carriage and utilizing an adjustable guide wheel structure, the problems of low guiding accuracy and poor adaptability were solved, achieving high-precision and flexible cutting results, and improving cutting efficiency and equipment adaptability.

CN224526194UActive Publication Date: 2026-07-21ZHE JIANG SHENG DA JIANG DONG TIE TA YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHE JIANG SHENG DA JIANG DONG TIE TA YOU XIAN GONG SI
Filing Date
2025-06-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing flame cutting carriages suffer from low guiding accuracy, unstable bonding, poor adaptability, and inflexible cutting direction, resulting in crooked cutting lines, complex operation, and low efficiency.

Method used

A flame cutting trolley was designed, which uses guide rods and guide components, including guide wheels, first and second direction wheels. Through an adjustable connection structure and mounting groove, the guide wheels can be fitted and compensated and flexibly adjusted to adapt to different steel plate edges and cutting paths.

Benefits of technology

It improves the stability and accuracy of the cutting path, enhances the versatility and operational flexibility of the equipment, and improves cutting efficiency and finished product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flame gas cutting trolley of technical field's one kind, including, trolley, install the adjusting lever on the trolley, the flame nozzle of rotation setting in the adjusting lever end, the flame nozzle is used for carrying out straight line flame gas cutting to the metal sheet, set up in the guide rod of trolley one side, guide rod one end is provided with the guide piece, and the guide piece is used for guiding trolley along the stable movement of steel plate side edge, improves the cutting accuracy, set up in the mounting through -hole between guide rod and the guide piece. Through setting up guide rod and guide piece in trolley one side, and closely fitting guide wheel with the side edge of the steel plate that is cut, realize the sustained effective physical orientation in the process of trolley advancing, thereby significantly improve the path stability in the process of flame gas cutting, avoid trolley to occur to deviate, promote cutting accuracy.
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Description

Technical Field

[0001] This utility model relates to the technical field of flame cutting, specifically to a flame gas cutting trolley. Background Technology

[0002] Flame cutting trolleys are widely used in steel structure manufacturing, shipbuilding, bridge construction, and heavy equipment processing to perform linear or specific trajectory flame cutting on large metal plates. Traditional flame cutting trolleys are generally driven by tracks or ground-based walking mechanisms and rely on operators to manually control the travel path; their guiding structure is relatively simple.

[0003] However, the existing flame cutting trolleys still have the following problems in use:

[0004] Low guiding accuracy and high risk of deviation: Due to the lack of an effective edge-fitting guiding structure, when the edge of the steel plate being cut is uneven or has a certain degree of warping, the carriage is prone to deviate, resulting in a non-straight cutting line and affecting the processing accuracy.

[0005] Unstable bonding and inability to adapt to the edge condition of the steel plate: Some existing guide structures use a rigid bonding method, which cannot dynamically adjust the bonding pressure according to the actual edge condition of the steel plate. When the bonding is not firm, the guide wheel is prone to detach from the workpiece surface, affecting the cutting continuity and trajectory accuracy.

[0006] Poor adaptability and difficulty in compatibility with various specifications of steel plates: The guide structure of traditional gas cutting carriages is mostly fixed, and the distance or angle between guide wheels cannot be flexibly adjusted. When processing steel plates of different widths or edge shapes, the operation is complicated or cannot be adapted.

[0007] Limited cutting direction and lack of flexibility: Some equipment only supports one-sided guidance. If cutting is required from the other side, manual turning or reinstallation of the equipment is necessary, which is not only time-consuming and labor-intensive, but also affects work efficiency. Summary of the Invention

[0008] The purpose of this utility model is to provide a flame cutting trolley to solve the problems of low guiding accuracy, unstable bonding, poor adaptability and inflexible cutting direction mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a flame cutting trolley, comprising a trolley, an adjusting rod mounted on the trolley, a flame nozzle rotatably disposed at the end of the adjusting rod, the flame nozzle being used for linear flame cutting of metal plates; a guide rod disposed on one side of the trolley, one end of the guide rod being provided with a guide member, the guide member being used to guide the trolley to move smoothly along the side of the steel plate, thereby improving cutting accuracy; and a mounting through hole being provided between the guide rod and the guide member.

[0010] Preferably, the guide component includes a guide wheel disposed at the end of the guide rod, a first directional wheel disposed below the guide wheel, and a second directional wheel disposed above the guide wheel. The first directional wheel is connected to the guide rod via a first connecting rod, and the second directional wheel is connected to the guide rod via a second connecting rod. The first and second directional wheels are inclined relative to the trolley to press the guide wheel against the side of the steel plate during the operation of the trolley, thereby preventing deviation.

[0011] Preferably, the first connecting rod is rotatably connected to the guide rod, the second connecting rod is rotatably connected to the guide rod, the second connecting rod is slidably disposed on the guide rod, and a fixing member is provided between the second connecting rod and the guide rod for adjusting the distance and angle between the first directional wheel and the second directional wheel to adapt to steel plates of different thicknesses.

[0012] Preferably, the first connecting rod is connected to the second connecting rod via a rotating component; the rotating component is used to synchronously adjust the tilt angle of the two directional wheels.

[0013] Preferably, the rotating component includes a first locking block disposed on the first connecting rod, a second locking block disposed on the second connecting rod, and a sliding track slidably sleeved on the first locking block and the second locking block; the sliding track is used to limit the relative motion trajectory of the two locking blocks within a certain range, so as to realize coordinated linkage during angle adjustment.

[0014] Preferably, the mounting through hole includes a first mounting groove and a second mounting groove disposed on the trolley; the first mounting groove and the second mounting groove are arranged in opposite directions; for realizing bidirectional pluggable installation of the guide rod, so that the guide wheel can be abutted against either side of the steel plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting guide rods and guide components on one side of the trolley and closely fitting the guide wheels with the side of the steel plate being cut, continuous and effective physical guidance is achieved during the trolley's forward movement, thereby significantly improving the path stability during the flame cutting process, preventing the trolley from deviating, and improving cutting accuracy.

[0017] 2. By setting up up and down directional wheels and arranging them at an angle relative to the trolley, when the trolley moves forward, the two directional wheels can continuously apply force to the inward side, so that the guide wheel always presses against the side of the steel plate, enhancing the fit stability between the guide and the workpiece, and even if there is slight warping at the edge of the steel plate, automatic fit compensation can be achieved.

[0018] 3. Through the rotation and sliding cooperation of the connecting structure between the steering wheels, especially the sliding adjustment of the second connecting rod and the setting of the fixing parts, the guide device can flexibly adjust the spacing and tilt angle of the steering wheels, thereby adapting to steel plates of different widths and edge conditions and improving the versatility of the equipment.

[0019] 4. By setting two mounting slots in opposite directions, the guide rod can be inserted into the first or second mounting slot according to the actual cutting path, so that the guide wheel can be attached to the left or right side of the steel plate, which can meet different cutting starting points and directions, and the operation is more flexible. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

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

[0022] Figure 2 This is a schematic diagram of the structure of the guide rod and guide component of this utility model;

[0023] Figure 3 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0024] Figure 4 This is an enlarged view of the rotating component of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] Cart (100), adjusting rod (101), flame nozzle (102), guide rod (103), guide component (104), guide wheel (104a), first directional wheel (104b), second directional wheel (104c), first connecting rod (104d), second connecting rod (104e), mounting component (105), first mounting groove (105a), second mounting groove (105b), snap-fit ​​component (105c), fixing component (106), rotating component (107), first snap-fit ​​block (107a), second snap-fit ​​block (107b), sliding rail (107c). Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4 This utility model provides a technical solution: a flame cutting trolley, including a trolley body 100, an adjusting rod 101, a flame nozzle 102, a guide rod 103, and a guide member 104.

[0029] An adjusting rod 101 is slidably mounted on the carriage 100 body. It supports the flame nozzle 102 and adjusts the distance between the flame nozzle 102 and the carriage 100 body. The flame nozzle 102 is rotatably mounted at the end of the adjusting rod 101 for flame cutting of the metal sheet being processed. The flame nozzle 102 can be adjusted in angle according to actual needs to meet the requirements of materials of different thicknesses or cutting angles. A guide rod 103 is provided on one side of the carriage 100 body, and a guide component 104 is mounted on the guide rod 103 to provide stable lateral guidance during the movement of the carriage 100, ensuring the straightness and accuracy of the cutting path.

[0030] The guide member 104 includes: a guide wheel 104a disposed at the end of the guide rod 103, the guide wheel 104a being in contact with the side of the steel plate being cut to provide physical guidance; a first directional wheel 104b disposed below the guide wheel 104a; and a second directional wheel 104c disposed above the guide wheel 104a, the first directional wheel 104b and the second directional wheel 104c being arranged at an angle relative to the forward direction of the trolley 100.

[0031] The first directional wheel 104b is connected to the guide rod 103 via the first connecting rod 104d, and the second directional wheel 104c is connected to the guide rod 103 via the second connecting rod 104e. The first connecting rod 104d and the guide rod 103 are rotatably connected, while the second connecting rod 104e and the guide rod 103 are both rotatably and slidably connected, and are positioned by the fixing member 106. This structure facilitates adjustment of the angle between the first directional wheel 104b and the second directional wheel 104c and the undercarriage body, thereby adapting to steel plates of different widths or edge conditions.

[0032] The first connecting rod 104d and the second connecting rod 104e are connected by a rotating component 107 for synchronously adjusting their tilt angles, thereby improving adjustment efficiency and guiding effect. The rotating component 107 may include a first engaging block 107a disposed on the first connecting rod 104d, a second engaging block 107b disposed on the second connecting rod 104e, and a sliding track 107c slidably fitted between the two, forming a linkage structure. In this embodiment, the second engaging block 107b is fixedly connected to one end of the sliding passage, and the first engaging block 107a can slide within the sliding track 107c.

[0033] A mounting through hole is provided between the guide rod 103 and the carriage 100. The guide rod 103 can be inserted into a first mounting slot 105a or a second mounting slot 105b located on one side of the carriage 100. The first mounting slot 105a and the second mounting slot 105b are arranged in opposite directions. By changing the mounting direction, the guide wheel 104a can be selected to abut the left or right side of the steel plate, meeting the cutting path selection requirements under different working conditions and improving the flexibility of the equipment.

[0034] Working principle: In the flame cutting trolley provided by this utility model, before the cutting operation begins, the operator selects the left or right side of the guide wheel 104a to be against the steel plate according to actual needs, inserts the guide rod 103 into the first mounting groove 105a or the second mounting groove 105b on the trolley body 100, sets the guiding direction, and adapts to different cutting path arrangements.

[0035] Subsequently, based on the thickness of the metal sheet being cut and the required cutting angle, the sliding position of the adjusting rod 101 on the carriage 100 body is adjusted, the distance between the flame nozzle 102 and the steel plate surface is adjusted, and the flame nozzle 102 is rotated to make its angle consistent with the cutting direction, so as to ensure that the incident angle of the gas cutting flame is appropriate and thus obtain good cutting quality.

[0036] At the start of cutting, the trolley 100 advances along the edge of the steel plate. The guide wheel 104a, located at the end of the guide rod 103, remains in close contact with the edge of the steel plate, providing physical constraint on the trolley 100's direction of travel. Simultaneously, the first directional wheel 104b and the second directional wheel 104c, positioned above and below the guide wheel 104a, are arranged at an angle relative to the trolley 100's forward direction. During the trolley 100's movement, continuous oblique compressive force is applied from the inside of the guide wheel 104a from above and below, respectively. This compressive force effectively presses the guide wheel 104a against the edge of the steel plate. Even if the edge of the steel plate has slight warping or unevenness, the continuous action of the directional wheels on the guide wheel 104a achieves automatic contact and guidance compensation, ensuring that the trolley 100 moves smoothly along the edge of the steel plate and improving the straightness and accuracy of the cutting path.

[0037] To accommodate steel plates of varying widths or edge shapes, the operator can adjust the mounting position of the second connecting rod 104e on the guide rod 103 via a sliding connection and lock it in place using the fixing member 106. Simultaneously, a rotating member 107 is connected between the first connecting rod 104d and the second connecting rod 104e. This rotating member 107, through the cooperation of the sliding rail 107c, the first locking block 107a, and the second locking block 107b, enables synchronized adjustment of the tilt angles of the two directional wheels. This not only improves adjustment efficiency but also ensures a more stable and consistent interaction between the directional wheels and the guide wheel 104a.

[0038] Throughout the cutting process, with the assistance of the guiding structure, the carriage 100 can continuously move forward at a constant speed along the edge of the steel plate. The flame nozzle 102 stably performs high-temperature gas cutting on the metal plate, ensuring a straight and precise cutting trajectory and good cut quality, greatly improving work efficiency and finished product precision. It is widely used in flame cutting scenarios of large steel plates, effectively improving the stability and efficiency of the operation.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flame cutting trolley, characterized in that, include: A trolley (100), an adjusting rod (101) mounted on the trolley (100), and a flame nozzle (102) rotatably disposed at the end of the adjusting rod (101), the flame nozzle (102) being used to perform linear flame gas cutting on metal plates; A guide rod (103) is provided on one side of the trolley (100), and a guide member (104) is provided at one end of the guide rod (103). The guide member (104) is used to guide the trolley (100) to move smoothly along the side of the steel plate and improve the cutting accuracy. An installation component (105) is provided between the guide rod (103) and the guide member (104).

2. The flame cutting trolley according to claim 1, characterized in that: The guide member (104) includes a guide wheel (104a) disposed at the end of the guide rod (103), a first directional wheel (104b) disposed below the guide wheel (104a), and a second directional wheel (104c) disposed above the guide wheel (104a). The first directional wheel (104b) is connected to the guide rod (103) via a first connecting rod (104d), and the second directional wheel (104c) is connected to the guide rod (103) via a second connecting rod (104e). The first directional wheel (104b) and the second directional wheel (104c) are inclined relative to the trolley (100) to press the guide wheel (104a) against the side of the steel plate during the operation of the trolley (100) to prevent deviation.

3. The flame cutting trolley according to claim 2, characterized in that: The first connecting rod (104d) is rotatably connected to the guide rod (103), and the second connecting rod (104e) is rotatably connected to the guide rod (103). The second connecting rod (104e) is slidably disposed on the guide rod (103). A fixing member (106) is provided between the second connecting rod (104e) and the guide rod (103) for adjusting the distance and angle between the first directional wheel (104b) and the second directional wheel (104c) to adapt to steel plates of different thicknesses.

4. The flame cutting trolley according to claim 2, characterized in that: The first connecting rod (104d) is connected to the second connecting rod (104e) via a rotating component (107); the rotating component (107) is used to synchronously adjust the tilt angle of the two directional wheels.

5. The flame cutting trolley according to claim 4, characterized in that: The rotating component (107) includes a first locking block (107a) disposed on the first connecting rod (104d), a second locking block (107b) disposed on the second connecting rod (104e), and a sliding track (107c) slidably sleeved on the first locking block (107a) and the second locking block (107b); the sliding track (107c) is used to limit the relative movement trajectory of the two locking blocks within a certain range, so as to realize the coordinated linkage during angle adjustment.

6. The flame cutting trolley according to claim 1, characterized in that: The mounting component (105) includes a first mounting groove (105a) and a second mounting groove (105b) disposed on the trolley (100). A snap-fit ​​component (105c) is disposed between the first mounting groove (105a) and the second mounting groove (105b) and the guide rod (103) for fixing the guide rod (103) in the first mounting groove (105a) or the second mounting groove (105b). The first mounting groove (105a) and the second mounting groove (105b) are arranged in opposite directions to enable bidirectional pluggable installation of the guide rod (103), so that the guide wheel (104a) can be attached to either side of the steel plate.