CN216283735U

CN216283735U - Rocket engine high-precision metering device capable of stabilizing mass flow

Info

Publication number: CN216283735U
Application number: CN202122476695.9U
Authority: CN
Inventors: 楚龙飞; 胡振宇; 吴晓飞
Original assignee: Beijing Lulk Spaceflight Technology Co ltd
Current assignee: Beijing Lulk Spaceflight Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-04-12
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a high-precision stable mass flow metering device of a rocket engine, which comprises a conveying pipe, wherein flange plates are fixedly connected at two ends of the conveying pipe, a connecting pipe is fixedly communicated with the top of the conveying pipe, a flow meter penetrates through the inside of the connecting pipe, a display end of the flow meter is positioned above the connecting pipe, a detection end of the flow meter is positioned inside the conveying pipe, and a clamping assembly for clamping the flow meter is arranged inside the connecting pipe.

Description

Rocket engine high-precision metering device capable of stabilizing mass flow

Technical Field

The utility model relates to the technical field of rocket engine metering devices, in particular to a rocket engine metering device with high precision and stable mass flow.

Background

The flow measurement is one of the components of the measurement science and technology, and has close relation with national economy, national defense construction and scientific research. The work is well done, the flowmeter has important effects on ensuring the product quality, improving the production efficiency and promoting the development of scientific technology, and particularly has more obvious status and effect in national economy in the current times that the energy crisis and the industrial production automation degree are higher and higher.

In a gas supply system of a rocket engine, a flow meter is directly and fixedly installed at a certain point on a conveying pipeline for flow measurement, after installation, a detection point cannot be adjusted again, mostly is fixed installation depth, so that installation cannot be carried out according to actual requirements, installation flexibility is poor, and disassembly and assembly are troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the rocket engine cannot be installed according to actual requirements, and meanwhile, the installation flexibility is poor and the assembly and disassembly are troublesome in the prior art, and provides a high-precision metering device for stabilizing mass flow of a rocket engine.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a metering device of mass flow is stabilized to rocket engine high accuracy, includes the conveyer pipe, the equal fixedly connected with ring flange in both ends of conveyer pipe, the fixed intercommunication in top of conveyer pipe has the connecting pipe, and the inside of connecting pipe runs through there is the flowmeter, and the display end of flowmeter is located the top of connecting pipe, and the sense terminal of flowmeter is located the inside of conveyer pipe, and the inside of connecting pipe is equipped with the clamping component who is used for pressing from both sides tight flowmeter.

Preferably, the inside fixedly connected with rubber seal of connecting pipe, and one side of flowmeter runs through rubber seal and laminates with rubber seal's inner wall mutually.

Preferably, clamping component slides including being annular equidistance and runs through a plurality of slide bars at the connecting pipe lateral wall, and the slide bar is located the inside one end fixedly connected with of connecting pipe and presss from both sides tight piece, and the slide bar is located one side of connecting pipe outside and runs through the cover and be equipped with the spring, the both ends of spring respectively with the outer wall of connecting pipe and one side fixed connection of slide bar, the outer wall of connecting pipe is equipped with the promotion subassembly that is used for promoting the removal of clamping block.

Preferably, the pushing assembly comprises a rotating ring sleeved on the outer wall of the connecting pipe through threads, an annular groove is formed in the inner wall of the rotating ring, an inclined plane is formed in the inner wall of one side, away from the connecting pipe, of the annular groove, and one end of the sliding rod extends into the annular groove and is in contact with the inclined plane.

Preferably, a friction pad is arranged on one side, close to the flowmeter, of the clamping block.

Preferably, the inside sliding connection of connecting pipe has the slip ring, and the bottom fixedly connected with round platform snap ring of slip ring, the top of rubber seal is equipped with the ring groove of pegging graft complex with the round platform snap ring.

Preferably, the top of the sliding ring and the bottom of the clamping block are rotatably connected with the same connecting rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the utility model, the detection end of the flowmeter is inserted into the conveying pipe through the connecting pipe, and the insertion depth is properly adjusted according to the requirement, so that preliminary pre-fixing can be realized by utilizing the penetrating contact with the rubber sealing ring, and the effect of flexible installation is achieved;

2. according to the utility model, the rotating ring moves upwards, the sliding rod can be pushed to move inwards and compress the spring, and meanwhile, the clamping block is driven to move to clamp and fix the flowmeter, the clamping and fixing effect can be improved through the friction pad, the operation is simple, the use is convenient, the detected depth position can be adjusted at will, and the mounting flexibility and the metering accuracy are improved;

3. in the utility model, the sliding ring can be driven to move downwards by the movement of the clamping block, and the circular truncated cone clamping ring is driven to move downwards and clamped into the annular clamping groove to extrude the rubber sealing ring, so that the close fit degree of the rubber sealing ring and the flowmeter is improved, and the sealing property of the connecting pipe is greatly improved.

The utility model has simple structure and convenient use, can install detection points with different depths according to actual use requirements so as to achieve the aim of flexible installation, simultaneously improves the accuracy of metering, can further improve the sealing property when fixing the flowmeter, greatly improves the practicability, and has convenient and fast disassembly and assembly, time saving and labor saving.

Drawings

FIG. 1 is a perspective view of the overall structure of a rocket engine high-precision mass flow rate-stabilizing metering device according to the present invention;

FIG. 2 is a front view of the overall structure of a rocket engine high-precision mass flow stabilizing metering device provided by the utility model;

FIG. 3 is a partial sectional view of the rocket engine high precision mass flow metering device of FIG. 2;

FIG. 4 is a perspective view of a slip ring and a circular truncated cone snap ring structure of the rocket engine high-precision mass flow stabilizing metering device provided by the utility model;

FIG. 5 is a perspective view of a rubber seal ring structure of a rocket engine high-precision mass flow stabilizing metering device according to the present invention;

FIG. 6 is a top view of the internal structure of a connecting pipe of the rocket engine high-precision mass flow stabilizing metering device.

In the figure: 1. a delivery pipe; 2. a flange plate; 3. a connecting pipe; 4. a flow meter; 5. a rubber seal ring; 6. an annular neck; 7. a rotating ring; 8. an annular groove; 9. a slide bar; 10. a clamping block; 11. a spring; 12. a bevel; 13. a friction pad; 14. a slip ring; 15. a circular truncated cone snap ring; 16. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-6, a rocket engine high accuracy stabilizes metering device of mass flow, including conveyer pipe 1, the equal fixedly connected with ring flange 2 in both ends of conveyer pipe 1, the fixed intercommunication in top of conveyer pipe 1 has connecting pipe 3, the inside of connecting pipe 3 runs through there is flowmeter 4, and flowmeter 4's display end is located the top of connecting pipe 3, flowmeter 4's sense terminal is located the inside of conveyer pipe 1, the inside of connecting pipe 3 is equipped with the clamping component who is used for pressing from both sides tight flowmeter 4.

Example two

The embodiment is improved on the basis of the first embodiment: referring to fig. 1-6, a rocket engine high-precision stable mass flow metering device, comprising a conveying pipe 1, wherein two ends of the conveying pipe 1 are fixedly connected with flange plates 2, the top of the conveying pipe 1 is fixedly communicated with a connecting pipe 3, a flow meter 4 penetrates through the connecting pipe 3, a display end of the flow meter 4 is positioned above the connecting pipe 3, a detection end of the flow meter 4 is positioned inside the conveying pipe 1, a rubber seal ring 5 is fixedly connected inside the connecting pipe 3, one side of the flow meter 4 penetrates through the rubber seal ring 5 and is attached to the inner wall of the rubber seal ring 5, the sealing performance of the connecting pipe 3 can be improved through the rubber seal ring 5, a clamping component for clamping the flow meter 4 is arranged inside the connecting pipe 3, the clamping component comprises a plurality of sliding rods 9 which are annularly and equidistantly sliding and penetrate through the side wall of the connecting pipe 3, one end of each sliding rod 9 positioned inside the connecting pipe 3 is fixedly connected with a clamping block 10, one side of the clamping block 10 close to the flowmeter 4 is provided with a friction pad 13, the clamping stability can be improved through the close contact of the friction pad 13 and the flowmeter 4, one side of the sliding rod 9 positioned outside the connecting pipe 3 is provided with a spring 11 in a penetrating and sleeving manner, two ends of the spring 11 are respectively and fixedly connected with the outer wall of the connecting pipe 3 and one side of the sliding rod 9, the outer wall of the connecting pipe 3 is provided with a pushing assembly for pushing the clamping block 10 to move, the clamping block 10 can play a role in clamping and fixing the flowmeter 4, the pushing assembly comprises a rotating ring 7 sleeved on the outer wall of the connecting pipe 3 through threads, the inner wall of the rotating ring 7 is provided with an annular groove 8, the inner wall of one side of the annular groove 8 far away from the connecting pipe 3 is provided with an inclined plane 12, one end of the sliding rod 9 extends into the annular groove 8 and is in contact with the inclined plane 12, the rotating ring 7 moves upwards to push the sliding rod 9 through the inclined plane 12, and then drive and press from both sides tight piece 10 and remove the tight effect of clamp that realizes flowmeter 4, the inside sliding connection of connecting pipe 3 has slip ring 14, the bottom fixedly connected with round platform snap ring 15 of slip ring 14, rubber seal 5's top is equipped with the circular slot 6 of pegging graft complex with round platform snap ring 15, insert through round platform snap ring 15 and can play extruded effect to rubber seal 5 in the circular slot 6, make it closely laminate with flowmeter 4's outer wall, with this sealed effect that improves greatly, the top of slip ring 14 rotates with the bottom of pressing from both sides tight piece 10 and is connected with same connecting rod 16, when pressing from both sides tight piece 10 and removing, can drive slip ring 14 through connecting rod 16 and move downwards.

The working principle is as follows: when the flowmeter 4 is installed, the detection end of the flowmeter 4 is inserted into the conveying pipe 1 through the connecting pipe 3, the insertion depth is properly adjusted according to needs, at the moment, preliminary pre-fixing can be realized by utilizing the penetrating contact with the rubber sealing ring 5, then the rotating ring 7 is rotated to move upwards, the sliding rod 9 can be pushed to move inwards and compress the spring 11 through the contact between the sliding rod 9 and the inclined plane 12, meanwhile, the clamping block 10 is driven to move to clamp and fix the flowmeter 4, the clamping and fixing effect can be improved through the friction pad 13, the operation is simple, the use is convenient, the detected depth position can be randomly adjusted, the installation flexibility and the metering accuracy are improved, in the moving process of the clamping block 10, the sliding ring 14 can be driven to move downwards through the connecting rod 16, the circular truncated cone clamping ring 15 is driven to move downwards and be clamped into the annular clamping groove 6 to extrude the rubber sealing ring 5, thereby, the close adhesion degree between the rubber seal ring 5 and the flowmeter 4 is improved, and the sealing performance of the connecting pipe 3 is greatly improved.

However, as is well known to those skilled in the art, the working principle and wiring method of the flow meter 4 are common and are conventional means or common knowledge, and will not be described herein, and those skilled in the art can make any choice according to their needs or convenience.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a metering device of mass flow is stabilized to rocket engine high accuracy, includes conveyer pipe (1), the equal fixedly connected with ring flange (2) in both ends of conveyer pipe (1), its characterized in that, the fixed intercommunication in top of conveyer pipe (1) has connecting pipe (3), and the inside of connecting pipe (3) is run through and is had flowmeter (4), and the demonstration end of flowmeter (4) is located the top of connecting pipe (3), and the sense terminal of flowmeter (4) is located the inside of conveyer pipe (1), and the inside of connecting pipe (3) is equipped with the clamping component who is used for pressing from both sides tight flowmeter (4).

2. A rocket engine high-precision mass flow rate metering device according to claim 1, characterized in that a rubber seal ring (5) is fixedly connected to the inside of the connecting pipe (3), and one side of the flow meter (4) penetrates through the rubber seal ring (5) and is attached to the inner wall of the rubber seal ring (5).

3. The rocket engine high-precision mass flow stabilizing metering device according to claim 1, wherein the clamping assembly comprises a plurality of sliding rods (9) which are annularly and equidistantly arranged and penetrate through the side wall of the connecting pipe (3), one ends of the sliding rods (9) inside the connecting pipe (3) are fixedly connected with clamping blocks (10), one sides of the sliding rods (9) outside the connecting pipe (3) are sleeved with springs (11) in a penetrating manner, two ends of the springs (11) are respectively and fixedly connected with the outer wall of the connecting pipe (3) and one side of each sliding rod (9), and the outer wall of the connecting pipe (3) is provided with a pushing assembly for pushing the clamping blocks (10) to move.

4. A rocket engine high-precision mass flow stabilizing metering device according to claim 3, wherein the pushing assembly comprises a rotating ring (7) which is sleeved on the outer wall of the connecting pipe (3) in a threaded manner, the inner wall of the rotating ring (7) is provided with an annular groove (8), the inner wall of one side of the annular groove (8) far away from the connecting pipe (3) is provided with an inclined surface (12), and one end of the sliding rod (9) extends into the annular groove (8) and is in contact with the inclined surface (12).

5. A rocket engine high accuracy mass flow metering device according to claim 3, characterized in that the side of the clamping block (10) close to the flow meter (4) is provided with a friction pad (13).

6. The rocket engine high-precision mass flow metering device according to claim 1, wherein a sliding ring (14) is slidably connected inside the connecting pipe (3), a circular truncated cone snap ring (15) is fixedly connected to the bottom of the sliding ring (14), and an annular clamping groove (6) which is in inserted fit with the circular truncated cone snap ring (15) is formed in the top of the rubber sealing ring (5).

7. A rocket engine high accuracy mass flow metering device according to claim 6, characterized in that the top of the slip ring (14) and the bottom of the clamping block (10) are rotatably connected with the same connecting rod (16).