Horizontal supporting device of gearbox

Abstract

The utility model discloses a horizontal supporting device of a gearbox, and belongs to the technical field of supporting and positioning. The defects that in the prior art, when a traditional accessory transmission gear box assembly needs to be hoisted, the hoisting process is not easy to implement, and potential safety hazards are caused to the accessory transmission gear box assembly are overcome. The main structure of the device comprises a hydraulic lifting trolley, a horizontal supporting device is installed at the upper end of the hydraulic lifting trolley and comprises a fixing frame body, and a first supporting column, a second supporting column and a third supporting column are arranged on the fixing frame body; a flat plate support used for increasing the front supporting area of the transmission gear box assembly is arranged at the upper end of the first supporting column, a first wedge-shaped support used for supporting the right side positioning face of the transmission gear box assembly is arranged at the upper end of the second supporting column, and a second wedge-shaped support used for supporting the left side positioning face of the transmission gear box assembly is arranged at the upper end of the third supporting column. The utility model is mainly applied to the gas turbine.

Description

Technical Field

[0001] The utility model belongs to the technical field of support positioning, and in particular relates to a horizontal supporting device for each supporting point of an accessory transmission gear box assembly of a gas turbine. Background Art

[0002] With the rapid development of domestic gas turbine technology, the structural design of various components is becoming more and more complex at this stage. Among them, the structure of the accessory transmission gearbox assembly in the gas turbine is particularly precise and complex. The external shell assembly of the accessory transmission gearbox assembly is a cast aluminum alloy part. The rotation speed of the bearings, gear shafts and other components inside it is extremely high. Therefore, during the assembly and disassembly process of the transmission gearbox assembly, the fulcrum of the gearbox assembly needs to be horizontally supported, and the mechanism must have the function of lifting and adjusting. In the existing assembly and disassembly process, the accessory transmission gearbox assembly needs to be hoisted. Because of its small space and interference with other components, the hoisting process is not easy to implement and will cause safety hazards to the accessory transmission gearbox assembly, which will have an adverse effect on the stability of the gas turbine as a whole.

[0003] In order to solve the convenience and reliability of the accessory transmission gearbox assembly in the gas turbine during the assembly and disassembly process, improve the efficiency and safety of the accessory transmission gearbox assembly mounted on the whole machine, increase the accuracy of the assembly and disassembly of the accessory transmission gearbox assembly, and thus increase the reliability of the gas turbine. Therefore, a horizontal support device for assembling and disassembling the accessory transmission gearbox assembly is required to achieve horizontal support of each fulcrum of the accessory transmission gearbox assembly.

[0004] For example, the Chinese utility model patent with application number 202222497669.9 discloses a gearbox structure for a semi-trailer support device, which facilitates the gears in the gearbox to achieve two transmission states through the cooperation of the transmission assembly and the gears in the box body, so as to facilitate the speed increase and speed decrease adjustment of the support device respectively, and facilitate the combination of the two states to reduce the effort of the support device when adjusting the support; however, it cannot achieve fine-tuning of the height, and cannot support the various fulcrums in the special-shaped gearbox assembly in a targeted manner. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a horizontal supporting device for a gear box.

[0006] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0007] A horizontal support device for a gear box includes a hydraulic lifting trolley, a horizontal support device is installed on the upper end of the hydraulic lifting trolley, the horizontal support device includes a fixed frame body, a first support column, a second support column and a third support column are arranged on the fixed frame body, a flat plate support for increasing the front support area of ​​a transmission gear box assembly is arranged on the upper end of the first support column, a first wedge-shaped support for supporting a right side positioning surface of the transmission gear box assembly is arranged on the upper end of the second support column, and a second wedge-shaped support for supporting a left side positioning surface of the transmission gear box assembly is arranged on the upper end of the third support column.

[0008] Preferably, a threaded plate and a threaded matching plate are provided at one end of the fixing frame body located at the first pillar, and the threaded plate and the threaded matching plate are connected by screws.

[0009] Preferably, the upper ends of the first wedge-shaped support and the second wedge-shaped support are both mounted with first soft pads via countersunk screws.

[0010] Preferably, a second soft pad is mounted on the upper end of the plank support via a countersunk screw.

[0011] Preferably, the third support column is connected to the second wedge-shaped support via a bolt and nut assembly, and the second support column is connected to the first wedge-shaped support via a bolt and nut assembly.

[0012] Preferably, the threaded plate, the threaded matching plate and the screws form a U-shaped structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The first wedge-shaped support and the second wedge-shaped support are used to jointly support the two positioning surfaces of the accessory gearbox assembly. If the accessory transmission gearbox assembly is to be in a horizontal state, the first wedge-shaped support can be fine-tuned by the bolt and nut assembly to achieve the purpose of being horizontal;

[0015] 2. The flat plate support increases the support area of ​​the front part of the transmission gearbox assembly, making the process of mounting the accessory transmission gearbox assembly to the whole machine smoother;

[0016] 3. The upper ends of the first wedge-shaped support and the second wedge-shaped support are both installed with a first soft pad through a countersunk screw, and the upper end of the flat support is installed with a second soft pad through a countersunk screw. The first soft pad and the second soft pad are used to increase the cushioning of the accessory transmission gearbox housing assembly and avoid rigid contact during installation and disassembly;

[0017] 4. The threaded plate and threaded matching plate are used together with screws to connect and tie the gearbox assembly with straps, and use the straps to tie through the screws to better assist in fixing the accessory transmission gearbox assembly;

[0018] 5. The horizontal support device can make each fulcrum of the accessory transmission gearbox assembly obtain stable horizontal support during the assembly and disassembly process, and the fine adjustment of the upper and lower space distance can be achieved by using a simple hydraulic lifting trolley, which provides effective technical support for the attachment transmission gearbox assembly to be mounted on the whole machine, thereby increasing the quality requirements of assembly and disassembly;

[0019] In summary, the utility model is used in the process of mounting or disassembling the accessory transmission gearbox assembly of the gas turbine complete machine. The three fulcrums on the utility model are overlapped with the fulcrum installation position of the gearbox housing assembly, which can effectively avoid collision and interference with other lubricating oil pipelines of the gearbox assembly. At the same time, during the assembly process of the accessory transmission gearbox assembly, the hydraulic trolley can slowly rise to lift the assembly to the required position and mount it on the gas turbine complete machine; during the disassembly process of the accessory transmission gearbox assembly, the horizontal support device of the gearbox is moved to the bottom of the gearbox assembly and the horizontal support device is lifted to overlap the fulcrum with the gearbox fulcrum, and an upward thrust is applied, so that the connecting hinges of the gearbox assembly can be easily disengaged. The utility model improves the rationality, reliability and convenience of assembly and disassembly, and the efficiency of assembly and disassembly is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is the front view of the utility model;

[0022] Figure 3 It is a left view of the utility model;

[0023] Figure 4 It is a top view of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the utility model in the installed and used state.

[0025] In the figure: 1. horizontal support device; 2. hydraulic lifting trolley; 3. support rod; 4. screw; 5. fixed frame body; 6. first wedge-shaped support; 7. second wedge-shaped support; 8. flat plate support; 9. first cushion; 10. second cushion; 11. threaded plate; 12. threaded matching plate; 13. bolt and nut assembly; 14. third pillar; 15. countersunk screw; 16. first pillar; 17. second pillar. DETAILED DESCRIPTION

[0026] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0027] Embodiment 1:

[0028] like Figure 1-4As shown, a horizontal support device for a gearbox includes a hydraulic lifting trolley 2, and a horizontal support device 1 for installing an accessory transmission gearbox assembly is installed on the upper end of the hydraulic lifting trolley 2. The horizontal support device 1 includes a fixing frame body 5, which is a welded frame of the horizontal support device. The fixing frame body 5 is provided with a first support column 16, a second support column 17 and a third support column 14. The upper end of the first support column 16 is provided with a flat support 8 for increasing the support area of ​​the front part of the transmission gearbox assembly, the upper end of the second support column 17 is provided with a first wedge support 6 for supporting the right positioning surface of the transmission gearbox assembly, and the upper end of the third support column 14 is provided with a second wedge support 7 for supporting the left positioning surface of the transmission gearbox assembly. The first wedge support 6 and the second wedge support 7 are used to jointly support the two positioning surfaces of the accessory gearbox assembly. If the accessory transmission gearbox assembly is to reach a horizontal state, the first wedge support 6 can be fine-tuned by the bolt and nut assembly 13 to achieve the purpose of being horizontal; the flat support 8 increases the support area of ​​the front part of the transmission gearbox assembly, so that the process of mounting the accessory transmission gearbox assembly to the whole machine is more stable.

[0029] In this embodiment, the hydraulic lifting trolley 2 is lifted by an oil cylinder or a gas cylinder, the support rod 3 is hinged at the upper and lower ends, and the bottom of the hydraulic lifting trolley 2 adopts universal wheels for easy walking.

[0030] Embodiment 2:

[0031] A horizontal support device for a gearbox, which is different from the embodiment 1 in that a threaded plate 11 and a threaded matching plate 12 are provided at one end of the fixing frame body 5 located at the first pillar 16, and the threaded plate 11 and the threaded matching plate 12 are connected by screws 4, wherein the threaded plate 11, the threaded matching plate 12 and the screws 4 form a U-shaped structure. The function of the screws 4 is to better assist in fixing the accessory transmission gearbox assembly by using a strap to tie through the screws 4 after the horizontal support device is installed in place. The function of the threaded plate 11 and the threaded matching plate 12 is to be used in conjunction with the screws 4, and the purpose is to connect and tie the straps to fix the gearbox assembly.

[0032] Furthermore, the upper ends of the first wedge-shaped support 6 and the second wedge-shaped support 7 are both installed with a first soft pad 9 through a countersunk screw 15; the upper end of the flat support 8 is installed with a second soft pad 10 through a countersunk screw 15. The first soft pad 9 and the second soft pad 10 are used to increase the cushioning of the accessory transmission gearbox housing assembly and avoid rigid contact during installation and disassembly. The countersunk screw 15 is used to fix each soft pad.

[0033] Furthermore, the third support column 14 is connected to the second wedge-shaped support 7 via a bolt and nut assembly 13 , and the second support column 17 is connected to the first wedge-shaped support 6 via a bolt and nut assembly 13 .

[0034] The utility model is used in the process of mounting or disassembling the accessory transmission gearbox assembly of the gas turbine complete machine, such as Figure 5 As shown, aligning the three fulcrums of the utility model with the fulcrum installation positions of the gearbox housing assembly can effectively avoid collision and interference with other lubricating oil pipelines of the gearbox assembly. At the same time, during the assembly of the accessory transmission gearbox assembly, the hydraulic trolley can slowly rise to lift the assembly to the required position and mount it on the gas turbine assembly. During the disassembly of the accessory transmission gearbox assembly, the horizontal support device of the gearbox is moved to the bottom of the gearbox assembly and the horizontal support device is lifted to make the fulcrum overlap with the gearbox fulcrum, and an upward thrust is applied, so that the connecting hinges of the gearbox assembly can be easily disengaged.

Claims

1. A horizontal support device for a gear box, comprising a hydraulic lifting trolley (2), characterized in that: A horizontal support device (1) is installed at the upper end of the hydraulic lifting trolley (2), and the horizontal support device (1) includes a fixing frame body (5), and a first support column (16), a second support column (17) and a third support column (14) are arranged on the fixing frame body (5), and a flat plate support (8) for increasing the front support area of ​​the transmission gear box assembly is arranged at the upper end of the first support column (16), a first wedge-shaped support (6) for supporting the right positioning surface of the transmission gear box assembly is arranged at the upper end of the second support column (17), and a second wedge-shaped support (7) for supporting the left positioning surface of the transmission gear box assembly is arranged at the upper end of the third support column (14).

2. The horizontal support device for a gear box according to claim 1, characterized in that: A threaded plate (11) and a threaded matching plate (12) are provided at one end of the fixing frame body (5) located on the first pillar (16); the threaded plate (11) and the threaded matching plate (12) are connected via screws (4).

3. The horizontal support device for a gear box according to claim 1, characterized in that: The upper ends of the first wedge-shaped support (6) and the second wedge-shaped support (7) are both mounted with a first soft pad (9) via a countersunk screw (15).

4. The horizontal support device for a gear box according to claim 1, characterized in that: A second soft pad (10) is mounted on the upper end of the flat plate support (8) via a countersunk screw (15).

5. The horizontal support device for a gear box according to any one of claims 1 to 4, characterized in that: The third support column (14) and the second wedge-shaped support (7) are connected via a bolt and nut assembly (13), and the second support column (17) and the first wedge-shaped support (6) are connected via a bolt and nut assembly (13).

6. The horizontal support device for a gear box according to claim 2, characterized in that: The threaded plate (11), the threaded matching plate (12) and the screw (4) form a U-shaped structure.

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