Meter core assembly structure resistant to high-pressure gas impact
By adopting a dual bearing structure in the core assembly of the gas turbine flowmeter, the problem of easy bearing damage in high-pressure gas environment is solved, and the reliability and load-bearing capacity of the system are improved.
Patent Information
- Application Number
- CN202422549240.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The core components of existing gas turbine flowmeters are prone to damage in high-pressure gas environments, resulting in high failure rates.
A dual bearing structure is adopted, including a combination of the first bearing and the second bearing, similar to a composite bearing, which enhances the radial and axial stiffness of the bearing and increases the system load bearing capacity.
In high-pressure gas environment, the bearing can withstand radial and axial impact forces, improve system reliability and reduce failure rate.
Smart Images
Figure CN223192389U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of turbine flowmeters, in particular to a meter core component structure capable of resisting high-pressure gas impact. Background Art
[0002] As China promotes a shift in its energy consumption structure, the "coal-to-gas" project progresses steadily, and natural gas consumption continues to grow annually. This has led to a growing demand for gas flowmeters among urban and rural residents and factories. Gas turbine flowmeters, instruments used to measure gas flow, are widely used in the natural gas, petroleum, chemical, and other industrial sectors. Their operating principle is that as gas flows through a turbine, the turbine's rotational speed is proportional to the gas flow rate. The core assembly of a gas turbine flowmeter is its core component, responsible for flow measurement and signal conversion.
[0003] The core assembly of a gas turbine flowmeter is usually composed of three parts: a turbine, a bearing, and a housing. However, since the bearing of the core assembly adopts a single bearing and is directly mounted on the housing, in high-pressure gas, this bearing is easily damaged when subjected to axial impact from the high-pressure gas, resulting in an extremely high failure rate of the gas turbine flowmeter. Utility Model Content
[0004] In order to make up for the above deficiencies, the utility model provides a core assembly structure resistant to high-pressure gas impact, aiming to improve the problem that the core assembly in the turbine flowmeter is easily damaged under the impact of high-pressure gas.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A watch movement assembly structure resistant to high-pressure gas impact, comprising a core shell, a movement seat assembly arranged inside the core shell, a worm shaft installed inside the movement seat assembly, an impeller arranged on the outer wall of the worm shaft, an oil guide seat arranged on the right side of the core shell, a first bearing installed on the right outer wall of the movement seat assembly, a second bearing arranged on the right side of the first bearing, and the second bearing installed on the right outer wall of the movement seat assembly.
[0006] Preferably, a countersunk hole is provided in the middle of the left end surface of the oil guide seat, and the lower portion of the left end surface of the oil guide seat is fixedly mounted on the inner wall of the core shell by a hexagon socket head screw.
[0007] Preferably, the movement seat assembly is fixedly mounted on the inner top wall of the core housing by means of cross recessed countersunk screws.
[0008] Preferably, the impeller is fixedly mounted on the outer wall of the worm shaft by two hexagonal thin nuts.
[0009] Preferably, the impeller is arranged inside the core housing.
[0010] The utility model has the following beneficial effects:
[0011] 1. In the present invention, by adopting a dual-bearing arrangement of a first bearing and a second bearing in the core assembly, the bearing component can have the advantages of a composite bearing. In a high-pressure environment, the bearing component can withstand the radial and axial impact forces of high-pressure gas on the bearing, greatly increasing the carrying capacity of the system, thereby enhancing the reliability of the system, enabling the core assembly to work stably in a high-pressure gas environment, and reducing the failure rate of the turbine flowmeter in a high-pressure gas environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The utility model is a structural schematic diagram of a watch movement assembly structure resistant to high-pressure gas impact.
[0013] Legend:
[0014] 1. Impeller; 2. Movement seat assembly; 3. Core housing; 4. First bearing; 5. Second bearing; 6. Oil guide seat; 7. Hexagon socket head screw; 8. Two hexagonal thin nuts; 9. Worm shaft; 10. Cross recessed countersunk screw. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0016] Reference Figure 1 The utility model provides an embodiment: a watch movement assembly structure resistant to high-pressure gas impact, including a core shell 3, a core base assembly 2 is arranged inside the core shell 3, the core base assembly 2 is fixedly mounted on the inner top wall of the core shell 3 by a cross recessed countersunk screw 10, a first bearing 4 and a second bearing 5 are installed in the core shell 3 together with the core base assembly 2 by a cross recessed countersunk screw 10, a worm shaft 9 is installed inside the core base assembly 2, an impeller 1 is arranged on the outer wall of the worm shaft 9, and the impeller 1 is arranged inside the core shell 3. The impeller 1 is fixed on the inner top wall of the core shell 3 by a cross recessed countersunk screw 10. The thin nut 8 is fixedly mounted on the outer wall of the worm shaft 9, an oil guide seat 6 is arranged on the inner right side of the core shell 3, a countersunk hole is opened in the middle of the left end surface of the oil guide seat 6, the countersunk hole of the oil guide seat 6 is aligned with the flange of the second bearing 5, and the lower part of the left end surface of the oil guide seat 6 is fixedly mounted on the inner wall of the core shell 3 by a hexagonal cylindrical head screw 7, a first bearing 4 is installed on the right outer wall of the movement seat assembly 2, a second bearing 5 is arranged on the right side of the first bearing 4, the second bearing 5 is mounted on the right outer wall of the movement seat assembly 2, and the first bearing 4 and the second bearing 5 are assembled in a fit.
[0017] Specifically, the first bearing 4 and the second bearing 5 adopt an installation method similar to that of a composite bearing, so that the first bearing 4 and the second bearing 5 have a compact structure. Compared with traditional watch core components, this method increases the radial and axial linearity and control stiffness of the bearing, greatly increases the system load-bearing capacity of the watch core component, enhances the reliability of the system, and enables the watch core component to work stably in a high-pressure gas environment.
[0018] Working principle: The combined use of the first bearing 4 and the second bearing 5 allows the bearing component of the watch movement assembly to have the advantages of a composite bearing, enabling the bearing component to withstand the radial and axial impact forces of the gas pressure in a high-pressure gas environment, greatly increasing the bearing capacity of the bearing component, thereby enhancing the reliability of the watch movement assembly system.
[0019] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A watch core assembly structure resistant to high-pressure gas impact, comprising a core shell (3), characterized in that: A movement seat assembly (2) is arranged inside the core housing (3), a worm shaft (9) is installed inside the movement seat assembly (2), an impeller (1) is arranged on the outer wall of the worm shaft (9), an oil guide seat (6) is arranged on the right side of the core housing (3), a first bearing (4) is installed on the right outer wall of the movement seat assembly (2), a second bearing (5) is arranged on the right side of the first bearing (4), and the second bearing (5) is installed on the right outer wall of the movement seat assembly (2).
2. The high-pressure gas impact-resistant watch movement assembly structure according to claim 1, characterized in that: A countersunk hole is provided in the middle of the left end surface of the oil guide seat (6), and the lower portion of the left end surface of the oil guide seat (6) is fixedly mounted on the inner wall of the core shell (3) by means of a hexagon socket head screw (7).
3. The high-pressure gas impact-resistant watch movement assembly structure according to claim 1, characterized in that: The core seat assembly (2) is fixedly mounted on the inner top wall of the core housing (3) via cross recessed countersunk screws (10).
4. The high-pressure gas impact-resistant watch movement assembly structure according to claim 1, characterized in that: The impeller (1) is fixedly mounted on the outer wall of the worm shaft (9) via two hexagonal thin nuts (8).
5. The watch movement assembly structure resistant to high-pressure gas impact according to claim 1, characterized in that: The impeller (1) is arranged inside the core housing (3).