A hydraulic support component straightening fixture
By designing a hydraulic support component for the electrically driven mobile trolley and spray gun assembly, the problem of low efficiency in manual handheld flame straightening was solved, achieving efficient, stable, and safe automated flame straightening.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
In the existing technology, the welding deformation correction of the main reinforcement position of the back plate after the welding of the top beam of the hydraulic support relies on manual hand-held heating gun, which results in high labor intensity, low efficiency and the correction effect is affected by the skill level of the operator.
Design a hydraulic support component straightening fixture, including an electrically driven moving trolley, a swing mechanism and a spray gun assembly. The reciprocating movement of the spray gun and flame straightening are achieved through electronic control drive, and the magnetic suction component is used to maintain stability, thus realizing automated straightening.
It improves the efficiency and consistency of correction, reduces labor intensity, and ensures the stability and safety of correction results.
Smart Images

Figure CN224424633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mine machinery technology, and more specifically, to a hydraulic support component straightening fixture. Background Technology
[0002] After the hydraulic support top beam is welded, the welding deformation at the position of the inner main reinforcement of the back plate needs to be corrected. Currently, the method used is to manually use a handheld torch for flame correction.
[0003] The process of manually holding a baking gun for baking has the problem of high labor intensity. On average, one job takes 30 to 40 minutes. Moreover, the correction effect is affected by the operator's skill level. Manually holding a spray gun for correction requires maintaining a fixed posture for a long time, which is especially physically demanding when handling heavy workpieces.
[0004] Given the large size of the top beam of the hydraulic support, general auxiliary tooling is insufficient to meet the straightening requirements. Therefore, it is necessary to develop a special straightening tooling for such large-volume hydraulic support components to assist the heat gun in completing the straightening work, reduce manual labor intensity, and improve work efficiency.
[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a hydraulic support component straightening fixture with higher straightening efficiency, higher straightening consistency for identical workpieces, and better stability and safety.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a hydraulic support component straightening fixture, including a moving trolley, a swing mechanism and a spray gun assembly;
[0008] The mobile vehicle is an electrically driven mobile vehicle used as a basic carrier;
[0009] The swing mechanism is mounted on the mobile trolley and can swing back and forth in one direction based on the mobile trolley.
[0010] The spray gun assembly is mounted on the swing mechanism and is used to achieve reciprocating movement of the working part of the spray gun assembly in conjunction with the swing mechanism.
[0011] Based on the above, the swing mechanism includes a swing motor, a transmission chain, a transmission sprocket, a swing slider, and a slide rail mounted on the mobile trolley. The swing slider is slidably engaged with the slide rail, and the swing motor drives the swing slider to reciprocate along the slide rail through the transmission sprocket and the transmission chain.
[0012] The upper surface of the swing slider serves as the mounting surface of the spray gun assembly.
[0013] Based on the above, the spray gun assembly includes a stand, a crossbeam, a spray gun gap adjustment mechanism, a spray gun height adjustment mechanism, a spray gun, and a support arm;
[0014] The bottom end of the upright is fixed to the upper surface of the swing slider, and the crossbeam is set at the top of the upright;
[0015] The spray gun gap adjustment mechanism includes a first ring hoop that slides horizontally along the crossbeam and can be locked.
[0016] The spray gun height adjustment assembly includes a second ring fixed integrally with the first ring and a vertical rod that slides vertically with the second ring and can be locked.
[0017] One end of the support arm is fixed to the bottom end of the vertical rod, and the spray gun is installed at the other end of the support arm.
[0018] Based on the above, the axial direction of the first ring hoop and the axial direction of the second ring hoop are perpendicular.
[0019] Based on the above, the crossbeam and the vertical rod are perpendicular in axis, and the support arm is perpendicular to the crossbeam.
[0020] Based on the above, the nozzle of the spray gun is tilted away from the moving trolley.
[0021] Based on the above, the nozzle of the spray gun is a honeycomb nozzle.
[0022] Based on the above, a magnetic suction component is provided at the bottom of the mobile vehicle to maintain its stability.
[0023] This utility model has substantial features and advancements compared to existing technologies. Specifically, considering the sufficiently large size of the top beam of the hydraulic support, this utility model develops a tooling that uses a mobile trolley as a carrier and adds a swing mechanism and spray gun assembly to the mobile trolley. With the mobility of the mobile trolley, it can be moved to any position on the top beam. With the swing mechanism and spray gun assembly, it can perform reciprocating flame straightening within a fixed range on the area to be straightened, thereby replacing the existing manual operation. Since this tooling is based on electric control drive, it has the advantages of higher straightening efficiency, higher straightening consistency rate of the same workpiece, and better stability and safety. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of the hydraulic support component straightening fixture in this utility model.
[0025] Figure 2 This is a side view of the hydraulic support component straightening fixture in this utility model.
[0026] Figure 3This is a schematic diagram of the structure of the mobile trolley in this utility model.
[0027] In the diagram: 1. Moving trolley; 2. Swinging mechanism; 3. Spray gun assembly; 11. Trolley body; 12. Walking motor; 13. Transmission sprocket set; 14. Transmission shaft; 15. Walking wheel; 16. Bearing;
[0028] 21. Oscillating motor; 22. Drive chain; 23. Drive sprocket; 24. Oscillating slider; 25. Slide rail;
[0029] 31. Frame; 32. Crossbeam; 33. Spray gun gap adjustment mechanism; 34. Spray gun height adjustment mechanism; 35. Spray gun; 36. Support arm; 331. First ring hoop; 341. Second ring hoop; 342. Vertical rod. Detailed Implementation
[0030] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0031] like Figures 1-3 As shown, a hydraulic support component straightening fixture includes a moving trolley 1, a swing mechanism 2, and a spray gun assembly 3.
[0032] The mobile trolley 1 is an electrically driven mobile trolley used as a basic carrier. In this embodiment, the mobile trolley 1 includes a trolley body 11, a walking motor 12, a transmission sprocket set 13, a transmission shaft 14, and walking wheels 15. The walking motor 12 can be powered by an external power supply via a cable or by a battery. The walking motor 12 drives each walking wheel 15 to move through the transmission sprocket set 13 and the transmission shaft 14. A bearing 16 is provided at the joint between the transmission shaft 14 and the walking wheel 15 to reduce resistance.
[0033] The swing mechanism 2 is mounted on the mobile trolley 1 and can swing back and forth in one direction based on the mobile trolley 1. Specifically, in this embodiment, the swing mechanism 2 includes a swing motor 21, a transmission chain 22, a transmission sprocket 23, a swing slider 24 and a slide rail 25 mounted on the mobile trolley. The swing slider 24 is slidably engaged with the slide rail 25. The swing motor 21 drives the swing slider 24 to move back and forth along the slide rail 25 through the transmission sprocket 23 and the transmission chain 22.
[0034] The upper surface of the swing slider 24 serves as the mounting surface of the spray gun assembly 3.
[0035] In this embodiment, the swing mechanism 2 is located at the head of the moving trolley, and the head of the moving trolley is the baking and correction area.
[0036] The spray gun assembly 3 is mounted on the swing mechanism 2 and is used to achieve reciprocating movement of the working part of the spray gun assembly 3 in conjunction with the swing mechanism 2.
[0037] In this embodiment, the spray gun assembly 3 includes a stand 31, a crossbeam 32, a spray gun gap adjustment mechanism 33, a spray gun height adjustment mechanism 34, a spray gun 35, and a support arm 36.
[0038] The bottom end of the support frame 31 is fixed to the upper surface of the swing slider 24, and the crossbeam 32 is set at the top of the support frame 31. Its structure is a smooth round tube or smooth rod structure, which serves as the mounting base structure for multiple spray guns 35.
[0039] The spray gun gap adjustment mechanism 33 includes a first ring hoop 331 that slides horizontally along the crossbeam and can be locked. It is fitted on the crossbeam 32 and can move horizontally along the crossbeam 32, thereby realizing the adjustment of the distance between the spray guns.
[0040] The spray gun height adjustment assembly 34 includes a second ring 341 fixed integrally with the first ring 331 and a vertical rod 342 that slides vertically with the second ring 341 and can be locked. The overall installation height of the spray gun can be adjusted by adjusting the height of the vertical rod 342.
[0041] The first ring hoop 331 is perpendicular to the axis of the second ring hoop 341, and the crossbeam 32 and the vertical rod 342 are perpendicular to each other.
[0042] One end of the support arm 36 is fixed to the bottom end of the vertical rod 342, and the spray gun 35 is installed at the other end of the support arm 36. The support arm 36 is perpendicular to the crossbeam 32.
[0043] The crossbeam 32, support arm 36, and vertical rod 342, together with the first ring hoop 331 and the second ring hoop 341, form a support structure for the spray gun 35, and enable the spray gun 35 to have the ability to adjust the horizontal gap and height.
[0044] The spray gun 35 is connected to an external gas source through a pipeline, such as commonly used propane, natural gas, acetylene, and other fuel gases.
[0045] To avoid burning the mobile trolley 1, the nozzle of the spray gun 35 is tilted away from the mobile trolley 1; to improve the heat uniformity of the steel plate, the nozzle of the spray gun is a honeycomb nozzle, and the number can be adjusted as needed.
[0046] To ensure the stability of the mobile trolley, a magnetic suction component is installed at the bottom of the mobile trolley 1, which forms an adsorption force with the top beam of the hydraulic support to maintain the stability of the mobile trolley.
[0047] Working principle explanation:
[0048] The working process of this fixture is controlled by a PLC. Based on the specific working conditions of the workpiece, the working parameters of the moving trolley 1, the swing mechanism 2 and the spray gun assembly 3 are adjusted at the program level. This controls the parameters such as the travel speed of the spray gun, the flame size, the swing speed and amplitude, etc., so as to realize automatic linear reciprocating motion linear flame correction. It can accurately control the flame temperature, moving speed, heating area and cooling time, and reduce human operation error.
[0049] For the same workpiece, automated tooling can repeatedly execute standardized processes to ensure consistent correction results each time, avoiding uneven deformation correction caused by human fatigue or technical differences.
[0050] The mobile trolley has a fixed initial position relative to the workpiece, and it usually only needs to complete a straight-line movement to reach the target position from the initial position. Therefore, the mobile trolley does not need to have steering or complex cruise processes.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A hydraulic support component straightening fixture, characterized in that: Includes a mobile trolley, a swing mechanism, and a spray gun assembly; The mobile vehicle is an electrically driven mobile vehicle used as a basic carrier; The swing mechanism is mounted on the mobile trolley and can swing back and forth in one direction based on the mobile trolley. The spray gun assembly is mounted on the swing mechanism and is used to achieve reciprocating movement of the working part of the spray gun assembly in conjunction with the swing mechanism.
2. The hydraulic support component straightening fixture according to claim 1, characterized in that: The swing mechanism includes a swing motor, a transmission chain, a transmission sprocket, a swing slider, and a slide rail mounted on the mobile trolley. The swing slider is slidably engaged with the slide rail, and the swing motor drives the swing slider to reciprocate along the slide rail through the transmission sprocket and the transmission chain. The upper surface of the swing slider serves as the mounting surface of the spray gun assembly.
3. The hydraulic support component straightening fixture according to claim 2, characterized in that: The spray gun assembly includes a stand, a crossbeam, a spray gun gap adjustment mechanism, a spray gun height adjustment mechanism, a spray gun, and a support arm; The bottom end of the upright is fixed to the upper surface of the swing slider, and the crossbeam is set at the top of the upright; The spray gun gap adjustment mechanism includes a first ring hoop that slides horizontally along the crossbeam and can be locked. The spray gun height adjustment assembly includes a second ring fixed integrally with the first ring and a vertical rod that slides vertically with the second ring and can be locked. One end of the support arm is fixed to the bottom end of the vertical rod, and the spray gun is installed at the other end of the support arm.
4. The hydraulic support component straightening fixture according to claim 3, characterized in that: The axial direction of the first ring is perpendicular to the axial direction of the second ring.
5. The hydraulic support component straightening fixture according to claim 3, characterized in that: The crossbeam and the vertical rod are perpendicular in axis, and the support arm is perpendicular to the crossbeam.
6. The hydraulic support component straightening fixture according to claim 5, characterized in that: The nozzle of the spray gun is tilted away from the moving trolley.
7. The hydraulic support component straightening fixture according to claim 5, characterized in that: The nozzle of the spray gun is a honeycomb nozzle.
8. The hydraulic support component straightening fixture according to claim 2, characterized in that: The bottom of the mobile vehicle is equipped with a magnetic suction component to maintain its stability.