Main catheter lifting device

Abstract

The main guide pipe lifting device comprises an adjusting support, a supporting block, an adjusting seat and a screw and nut assembly. The adjusting bracket is mounted on a rear bottom flange of the storage tank; the adjusting seat is fixedly connected with the supporting block; the screw and nut assembly is fixedly connected to the adjusting base. The supporting block is plugged into the main guide tube; the adjusting base is connected with the adjusting support through the screw and nut assembly. And the adjusting seat is adjusted to move horizontally and vertically through the screw and nut assembly, so that the supporting block and the main guide pipe are driven to move horizontally and vertically. According to the main guide pipe lifting device, the purpose of lifting the main guide pipe can be achieved only by simply adjusting the position of the nut on the adjusting screw rod, operation is easy, manpower is saved, and safety is achieved.

Description

Technical Field

[0001] The utility model relates to an installation tooling, in particular to a main pipe lifting device. Background Art

[0002] The main pipe of a launch vehicle is an important part of the power system of the launch vehicle, equivalent to the main artery of the launch vehicle. The overall installation quality directly determines the performance and safety of the rocket. If the main pipe is not fixed and installed in place, it is extremely easy to cause fuel leakage of the launch vehicle, directly affecting the success or failure of the flight. The fixation of the main pipe is a very important step in the general assembly process.

[0003] Currently, during the general assembly operation of fixing the main pipe, the main pipe is lifted, and the snap ring is installed on the rear bottom of the storage tank. The snap ring fixes the outer surface of the main pipe and the flange. During the installation of the snap ring, three people need to stand on a 1.5m high ladder to simultaneously lift the outer edge of the main pipe. At the moment when the others lift the main pipe, another person inserts half of the snap ring and simultaneously inserts the fixing screws of the snap ring. Then, the people lifting the main pipe keep lifting until all the fixing screws of the half snap ring are screwed in. Since the main pipe fixing snap ring is installed after the docking of the oxidizer tank and the fuel tank, when installing, the front end of the main pipe is fixed by the compensating pipe, and the rear end will be close to the inner wall of the tunnel pipe without support. When three people operate on a 1.5m high ladder, due to lifting heavy objects at height, it is extremely easy to be dangerous. Therefore, several people need to cooperate closely. And when lifting, the weight of the main pipe is relatively high, and the lifting direction is difficult to control. Sometimes there is also a situation where left - right movement is required, so the operation difficulty is increased.

[0004] The existing main pipe fixing scheme is to lift and install by manpower. From the perspective of the entire installation process, it has extremely high requirements for the technical level of the operators, and there are potential safety hazards during the process. The entire process requires four people to cooperate in the installation, wasting human resources and being extremely time - consuming. Content of the Utility Model

[0005] The purpose of the utility model is to provide a main pipe lifting device to solve the problems of great difficulty in lifting the main pipe, difficult fixation, many potential safety hazards, and complex operation when fixing the main pipe.

[0006] To achieve the above - mentioned purpose, the utility model provides a main pipe lifting device, which includes an adjusting bracket, a support block, an adjusting seat, and a screw - nut assembly; the adjusting bracket is installed on the rear bottom flange of the storage tank; the adjusting seat is fixedly connected with the support block; the screw - nut assembly is fixedly connected to the adjusting seat; the support block is inserted into the main pipe; the adjusting seat is connected to the adjusting bracket through the screw - nut assembly; the horizontal and vertical movement of the adjusting seat is adjusted through the screw - nut assembly, so as to drive the support block and the main pipe to move horizontally and vertically.

[0007] The above-mentioned main duct lifting device, wherein the screw-nut assembly includes two horizontal adjustment screws, one vertical adjustment screw and three adjustment nuts; one of the horizontal adjustment screws is fixedly connected to each side of the adjustment seat, and the vertical adjustment screw is fixedly connected to the top of the adjustment seat; both the horizontal adjustment screw and the vertical adjustment screw pass through the adjustment bracket, the horizontal adjustment screw is parallel to the horizontal direction, and the vertical adjustment screw is parallel to the vertical direction; the three adjustment nuts are respectively connected to the two horizontal adjustment screws and one vertical adjustment screw.

[0008] The above-mentioned main duct lifting device, wherein two vertical waist-shaped grooves and one horizontal waist-shaped groove are formed on the adjustment bracket; the two horizontal adjustment screws respectively pass through the two vertical waist-shaped grooves, and the vertical adjustment screw passes through the horizontal waist-shaped groove.

[0009] The above-mentioned main duct lifting device, wherein the adjustment bracket has an inverted U-shaped structure, one vertical waist-shaped groove is formed on each side of the adjustment bracket, and one horizontal waist-shaped groove is formed on the top of the adjustment bracket.

[0010] The above-mentioned main duct lifting device, wherein the adjustment bracket is installed on the rear bottom flange of the storage tank through fixing screws and bushings; the fixing screws pass through the adjustment bracket and the bushings and are threadedly connected to the rear bottom flange of the storage tank.

[0011] The above-mentioned main duct lifting device, wherein the distance between the adjustment bracket and the rear bottom flange of the storage tank is controlled by the length of the bushing.

[0012] Compared with the prior art, the beneficial technical effects of the present utility model are:

[0013] After installing the main duct lifting device of the present utility model on the rear bottom of the storage tank, the purpose of lifting the main duct can be achieved by simply adjusting the position of the nut on the adjustment screw, and then it is convenient to install the main duct fixing clamp, with simple operation; the main duct lifting device of the present utility model can adapt to different offset situations of the main duct, which can not only reduce the labor of operators, directly changing from four people to one person, saving manpower, but also avoid the safety threat to operators when operating on a 1.5m high ladder, with a simple and safe structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The main duct lifting device of the present utility model is given by the following embodiments and drawings.

[0015] Figure 1 It is a schematic diagram of the main duct lifting device in the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will further describe in detail Figure 1 the main duct lifting device of the present utility model.

[0017] Figure 1 The figure shows a schematic diagram of the main duct lifting device in an embodiment of the present utility model.

[0018] As Figure 1 shown, the main duct lifting device of this embodiment includes an adjusting bracket 5, a support block 7, an adjusting seat 6, a vertical adjusting screw 41, a first horizontal adjusting screw 42, a second horizontal adjusting screw 43, a vertical adjusting nut 31, a first horizontal adjusting nut 32, a second horizontal adjusting nut 33, a fixing screw 8 and a bushing 2;

[0019] The adjusting bracket 5 is installed on the rear bottom flange 1 of the storage tank through four of the fixing screws 8, and a bushing 2 is sleeved on each of the fixing screws 8. The distance between the adjusting bracket 5 and the rear bottom flange 1 of the storage tank can be controlled through the bushing 2; specifically, the bushing 2 has a circular column structure, and the fixing screw 8 passes through the adjusting bracket 5 and the bushing 2 and is threadedly connected to the rear bottom flange 1 of the storage tank, that is, the bushing 2 is sleeved on the fixing screw 8 and is located between the adjusting bracket 5 and the rear bottom flange 1 of the storage tank, and the length of the bushing 2 determines the distance between the adjusting bracket 5 and the rear bottom flange 1 of the storage tank;

[0020] The adjusting seat 6 is fixedly connected to the support block 7;

[0021] The first horizontal adjusting screw 42 and the second horizontal adjusting screw 43 are respectively fixedly connected to the left and right sides of the adjusting seat 6, the vertical adjusting screw 41 is fixedly connected to the top of the adjusting seat 6, the first horizontal adjusting screw 42 and the second horizontal adjusting screw 43 are parallel to each other, and the vertical adjusting screw 41 is perpendicular to the first horizontal adjusting screw 42 and the second horizontal adjusting screw 43;

[0022] Two vertical waist-shaped slots and one horizontal waist-shaped slot are provided on the adjusting bracket 5. The first horizontal adjusting screw 42 and the second horizontal adjusting screw 43 respectively pass through the two vertical waist-shaped slots of the adjusting bracket 5, and the vertical adjusting screw 41 passes through the horizontal waist-shaped slot of the adjusting bracket 5;

[0023] The vertical adjusting nut 31 is connected to the vertical adjusting screw 41, the first horizontal adjusting nut 32 is connected to the first horizontal adjusting screw 42, and the second horizontal adjusting nut 33 is connected to the second horizontal adjusting screw 43.

[0024] Preferably, the adjusting bracket 5 has an inverted U-shaped structure, and a vertical waist-shaped slot is provided on each side of the adjusting bracket 5, and a horizontal waist-shaped slot is provided on the top of the adjusting bracket 5.

[0025] The working principle of the main duct lifting device of this embodiment is as follows:

[0026] Combined with Figure 1 After the box bodies are butted, the flange surface of the main pipe will protrude from the rear bottom flange 1 of the storage tank. First, insert the support block 7 with the adjusting seat 6 and the adjusting screw into the main pipe. Then, assemble the adjusting bracket 5 so that the two horizontal adjusting screws respectively pass through the two vertical waist-shaped slots of the adjusting bracket 5, and the vertical adjusting screw 41 passes through the horizontal waist-shaped slot of the adjusting bracket 5. Use the fixing screw 8 and the bushing 2 to install the adjusting bracket 5 on the rear bottom flange 1 of the storage tank. Then, connect the three adjusting nuts to the three adjusting screws respectively.

[0027] Since the flange surface of the main pipe protrudes from the rear bottom flange 1 of the storage tank and closely adheres to the lower edge of the rear bottom flange 1 of the storage tank, at this time, adjusting the vertical adjusting nut 31 can drive the adjusting seat 6 to move upward, thereby driving the support block 7 and the main pipe to move upward until the main pipe is lifted to an appropriate height and the fixing clamp ring of the main pipe can be installed. When the horizontal left and right of the main pipe needs to be adjusted, only loosen the horizontal adjusting nut in the opposite direction that needs to be adjusted, and directly adjust the horizontal adjusting nut in the direction that needs to be adjusted. For example, when the main pipe needs to move horizontally to the right, the operation process is to first loosen the left horizontal adjusting nut, and then adjust the main pipe to move horizontally to the right by tightening the right horizontal adjusting nut. The vertical adjusting nut and the horizontal adjusting nut can be adjusted together to adapt to the installation conditions of different scenarios.

[0028] The main pipe lifting device of this embodiment can not only reduce the labor of the operators, directly changing from four people to one person for operation, saving manpower, but also avoid the safety threat to the operators when operating on an equal-height ladder of 1.5 m. The structure is simple and safe.

Claims

1. Main duct lifting device, characterized in that, It includes an adjusting bracket, a supporting block, an adjusting seat and a screw-nut assembly; The adjusting bracket is installed on the rear bottom flange of the storage tank; The adjusting seat is fixedly connected to the supporting block; the screw-nut assembly is fixedly connected to the adjusting seat; The supporting block is inserted into the main pipe; the adjusting seat is connected to the adjusting bracket through the screw-nut assembly; The horizontal and vertical movement of the adjusting seat is adjusted through the screw-nut assembly, so as to drive the supporting block and the main pipe to move horizontally and vertically.

2. The main duct lifting device according to claim 1, wherein, The screw-nut assembly includes two horizontal adjusting screws, one vertical adjusting screw and three adjusting nuts; one of the horizontal adjusting screws is fixedly connected to each side of the adjusting seat, and the vertical adjusting screw is fixedly connected to the top of the adjusting seat; both the horizontal adjusting screw and the vertical adjusting screw pass through the adjusting bracket, the horizontal adjusting screw is parallel to the horizontal direction, and the vertical adjusting screw is parallel to the vertical direction; the three adjusting nuts are respectively connected to the two horizontal adjusting screws and one vertical adjusting screw.

3. The main duct lifting device according to claim 2, characterized in that, Two vertical waist-shaped slots and one horizontal waist-shaped slot are formed on the adjusting bracket; the two horizontal adjusting screws respectively pass through the two vertical waist-shaped slots, and the vertical adjusting screw passes through the horizontal waist-shaped slot.

4. The main duct lifting device according to claim 3, characterized in that, The adjusting bracket is in an inverted U-shaped structure, with a vertical waist-shaped slot formed on each side of the adjusting bracket and a horizontal waist-shaped slot formed on the top of the adjusting bracket.

5. The main duct lifting device according to claim 1, wherein The adjusting bracket is installed on the rear bottom flange of the storage tank through fixing screws and bushings; the fixing screws pass through the adjusting bracket and the bushings and are threadedly connected to the rear bottom flange of the storage tank.

6. The main duct lifting device according to claim 5, wherein, The distance between the adjusting bracket and the rear bottom flange of the storage tank is controlled by the length of the bushing.

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