Rotating disc on flow valve for combustion engine
By designing a rotating disc on the flow valve for the combustion machine, using a combination of secondary transmission gear and shaft hole sealing surface, limiting groove and flow door, the problem of inaccurate flow adjustment and full-closing and no flow in the prior art is solved, the accuracy of flow adjustment and full-closing and no leakage is achieved, the stability of ignition is improved and user costs are reduced.
Patent Information
- Application Number
- CN202421590751.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The existing flow valves for combustion machines cannot achieve full shutdown without flow rate in a fully closed state, and lack obvious mechanical positioning, resulting in ignition instability and possible air or liquid leakage, and additional expensive slow-opening solenoid valves are required to achieve flow control.
A rotating disc on the flow valve for combustion machines is designed, and a combination of secondary transmission gear and shaft hole sealing surface, limit groove and flow door are used to accurately determine the full-closing and full-open positions through the first limit point and the second limit point on the limiting groove to achieve the accuracy of flow adjustment, and achieve full-closing and leakage-free through axial seal.
Through the design of the limit slot, the flow adjustment is achieved, the function of a slow-open solenoid valve is equipped, the stability of ignition is improved, and the full shutdown is achieved through axial sealing, which reduces user costs.
Smart Images
Figure CN222783026U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rotating disk on a flow valve, in particular to a rotating disk on a flow valve for a combustion machine. Background Art
[0002] The flow valve for burners is a valve widely used in the field of gas and oil. It controls the size of the fire by adjusting the flow rate.
[0003] The flow regulating device of the flow valve is composed of a ball rod and a valve port. The flow valve is radially sealed in the fully closed state. This sealing method cannot achieve full closure without flow, and the device has no obvious mechanical positioning. In order to ensure stable ignition and no gas or liquid leakage, a slow-opening solenoid valve is added between the flow valve (slow-opening solenoid valve: by controlling the starting speed of the valve core, the solenoid valve is slowly opened, thereby accurately controlling the fluid flow). The slow-opening solenoid valve is expensive, which undoubtedly increases the user's cost. Utility Model Content
[0004] The utility model aims to overcome the above-mentioned deficiencies of the prior art and provides a rotating disk on a flow valve for a burner.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rotating disk on a flow valve for a burner, comprising a secondary transmission gear, an axial hole is provided at the center of the secondary transmission gear, a sealing surface is provided on the outer periphery of the axial hole, a limit groove and a flow gate are provided on the sealing surface, the limit groove is on one side of the flow gate, and the limit groove and the flow gate are connected to the sealing surface.
[0006] In the above-mentioned rotating disk on the flow valve for a burner, the number of the flow gates is one or more.
[0007] In the rotating disk on the above-mentioned flow valve for a burner, the number of the limiting grooves is more than one.
[0008] In the rotating disk on the above-mentioned flow valve for a burner, the limiting groove is provided with a first limiting point and a second limiting point, and the first limiting point and the second limiting point are respectively located at two ends of the limiting groove.
[0009] In the rotating disk on the above-mentioned flow valve for a burner, the angle formed by the first limit point and the second limit point is 30° to 150°.
[0010] In the rotating disk on the above-mentioned flow valve for a combustion machine, the secondary transmission gear is a bevel gear, a helical gear, a spur gear or a turbine.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The utility model accurately determines the fully closed position and the fully open position through the first limit point and the second limit point on the limit groove, making the flow regulation more accurate. The limit groove also has a valve opening angle, that is, how much angle the rotating disk needs to run to the open position, and has the function of a slow-opening solenoid valve, which improves the stability of ignition;
[0013] At the same time, the axial sealing method is used to achieve the function of full closing and no leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described with reference to the accompanying drawings:
[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;
[0016] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;
[0017] Figure 3 The structure of the utility model is shown in FIG. Figure 3 ;
[0018] Figure 4 The structure of the utility model is shown in FIG. Figure 4 .
[0019] In the figure,
[0020] 14-rotating disk, 1401-shaft hole, 1402-secondary transmission gear, 1403-flow gate, 1404-limiting groove, 14041-first limiting point, 14042-second limiting point, 1405-sealing surface; DETAILED DESCRIPTION
[0021] The present invention is described in detail below with reference to the accompanying drawings and by means of exemplary embodiments. The following detailed description of the present invention is only for exemplary purposes and is by no means a limitation of the present invention and its application or use.
[0022] Embodiment 1
[0023] Reference Figure 1 to Figure 4 As shown, the rotating disk 14 in the utility model is further described as follows:
[0024] In the present invention, the secondary transmission gear 1402 is used to realize the circular motion of the rotating disk 14;
[0025] In order to ensure that the rotating disk 14 does not deviate from the circular trajectory, a shaft hole 1401 is provided at the center of the secondary transmission gear 1402;
[0026] In order to achieve axial sealing, a sealing surface 1405 is provided on the outer periphery of the shaft hole 1401;
[0027] In order to achieve flow regulation and limit, a limit groove 1404 and a flow gate 1403 are provided on the sealing surface 1405, and the limit groove 1404 and the flow gate 1403 are arranged through the sealing surface 1405. In order to achieve a good seal, the flatness of the sealing surface 1405 is made within 0 to 0.008 μm by grinding; generally, after grinding, the flatness can reach within 0.002 μm.
[0028] The number of flow gates 1403 is more than one, and the specific number of flow gates 1403 can be reasonably designed according to the size of the rotating disk 14 and the production process, and generally more than two can be designed to be more reasonable. The shape of the flow gate 1403 can be reasonably designed according to the flow characteristic curve.
[0029] The number of the limiting grooves 1404 is more than one. In order to make the rotating disk 14 bear force evenly, the number of the limiting grooves 1404 is designed to be more than two, so as to prevent the rotating disk 14 from tilting upward after being subjected to force.
[0030] In order to limit the flow opening, a first limit point 14041 and a second limit point 14042 are provided on the limit groove 1404, and the first limit point 14041 and the second limit point 14042 are respectively located at the two ends of the limit groove 1404. The angle formed by the first limit point 14041 and the second limit point 14042 is 30° to 150°. In order to realize the slow opening function, a valve opening angle is set on the limit groove 1404, and the valve opening angle is generally set at 5° to 20°. If the valve opening angle is 5°, it is in a closed and sealed state within the range of 0° to 5°; if the valve opening angle is 10°, it is in a closed and sealed state within the range of 0° to 10°.
[0031] In the present invention, the secondary transmission gear 1402 is preferably a bevel gear. The structure of the bevel gear can always subject the rotating disk 14 to downward pressure, and then through external meshing transmission of the secondary transmission gear 1402, the rotating disk 14 rotates and the sealing surface 1405 always fits the sealing end surface of the valve disc.
[0032] Embodiment 2
[0033] The difference from the first embodiment is that the transmission structure of the secondary transmission gear 1402 is a worm gear transmission structure, such as Figure 2 and Figure 3As shown, the biggest advantage of this structure is: the transmission ratio is large, and the stepper motor only needs to use a very small force to drive the rotating disk 14. However, in order to prevent the rotating disk 14 from deviating outward, the elastic force of the compression spring needs to be increased. The elastic force needs to be adjusted according to the output torque of the stepper motor. The secondary transmission gear 1402 can be designed on the outer wall of the rotating disk 14, or it can be designed above the flow gate 1403, the limit groove 1404, and the sealing surface 1405.
[0034] Embodiment 3
[0035] What is different from the first embodiment is that the transmission structure of the secondary transmission gear 1402 is a common gear transmission structure, such as a spur gear structure or a helical gear structure. The secondary transmission gear 1402 can be designed on the outer wall of the rotating disk 14, or can be designed above the flow gate 1403, the limit groove 1404, and the sealing surface 1405.
[0036] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the essence of the content of the utility model should be included in the protection scope of the utility model.
Claims
1. A rotating disk on a flow valve for a burner, characterized in that: The invention comprises a secondary transmission gear (1402), wherein an axial hole (1401) is provided at the center of the secondary transmission gear (1402), a sealing surface (1405) is provided on the periphery of the axial hole (1401), a limiting groove (1404) and a flow gate (1403) are provided on the sealing surface (1405), and the limiting groove (1404) and the flow gate (1403) are arranged to penetrate the sealing surface (1405).
2. The rotating disk on the flow valve for a burner according to claim 1, characterized in that: The number of the flow gates (1403) is more than one.
3. The rotating disk on the flow valve for a burner according to claim 1, characterized in that: The number of the limiting grooves (1404) is more than one.
4. A rotating disk on a flow valve for a burner according to any one of claims 1 or 3, characterized in that: The limiting groove (1404) is provided with a first limiting point (14041) and a second limiting point (14042), and the first limiting point (14041) and the second limiting point (14042) are respectively located at two ends of the limiting groove (1404).
5. The rotating disk on the flow valve for a burner according to claim 4, characterized in that: The angle formed by the first limiting point (14041) and the second limiting point (14042) is 30° to 150°.
6. The rotating disk on the flow valve for a burner according to claim 1, characterized in that: The secondary transmission gear (1402) is a bevel gear or a helical gear or a spur gear or a turbine.