CN217653331U

CN217653331U - Gas fluid valve of miniature hollow cup motor

Info

Publication number: CN217653331U
Application number: CN202221419344.2U
Authority: CN
Inventors: 潘薇
Original assignee: Zhejiang Tiandun Valve Technology Co ltd
Current assignee: Zhejiang Tiandun Valve Technology Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-10-25
Anticipated expiration: 2032-06-07

Abstract

The utility model relates to a miniature coreless motor gas fluid valve is great to motor space, the energy consumption of solving current like product, and difficult passing requirement when doing the explosion-proof, difficult little space assembly's in the valve body technical problem and design that is used for. The motor cover, the gear box and the valve body of the gas fluid valve are sequentially connected, a motor and a gear assembly are arranged in the lower cavity, and a first support, a second support and a valve sealing sleeve are arranged in the upper cavity; the motor is a hollow cup motor, an electric wire at the bottom of the hollow cup motor extends out of a wire hole on one side of a motor cover, a worm is arranged on a motor shaft of the hollow cup motor, one side of a spiral groove of the worm is meshed with a large gear of a first double-layer gear in a gear assembly, a small gear of the first double-layer gear is meshed with a large gear of a second double-layer gear, a small gear of the second double-layer gear is meshed with a large gear of a third double-layer gear, a small gear of the third double-layer gear is meshed with an output gear at one end of a screw rod, and the screw rod and the output gear are connected into a whole.

Description

Gas fluid valve of miniature hollow cup motor

Technical Field

The utility model relates to a miniature gas valve, in particular to a miniature hollow cup motor gas fluid valve.

Background

The miniature valve is a valve body with small volume, and the gas valve is a valve body which is used for safely matching in gas pipeline engineering, is used for cutting off, connecting and adjusting gas in pipelines, has good control characteristic and closing sealing performance, and is suitable for various gas medium pipelines such as city gas, liquefied petroleum gas, natural gas, oxygen and the like. Some existing micro gas valve structures, such as application number 202021337727.6 disclosed in chinese patent literature, issue date 2022.02.08, and utility model name "micro civil motor valve"; for another example, the utility model has the application number 202120073212.8 disclosed in the chinese patent document, the granted publication date 2021.09.28, and the utility model discloses a "motor valve". However, the structural design of the product and the like is not good enough, and particularly, the motor is large, so that the universality is poor, the small space is difficult to install, the energy consumption of the motor is high, and the requirement of explosion prevention is difficult to pass, namely, a hollow cup motor structure is less adopted, the hollow cup motor belongs to a direct-current permanent magnet servo and control motor, is a micro special motor, has outstanding energy-saving characteristics, sensitive and convenient control characteristics and stable operation characteristics, and is used as an efficient energy conversion device. The coreless motor structurally breaks through the structural form of the rotor of the traditional motor and adopts the coreless rotor, thereby thoroughly eliminating the electric energy loss caused by the formation of eddy current by the iron core; meanwhile, the weight and the rotational inertia of the rotor are greatly reduced, so that the mechanical energy loss of the rotor is reduced, and the rotor has the outstanding energy-saving characteristic.

Disclosure of Invention

For overcoming the above-mentioned not enough, the utility model aims at providing a miniature gas fluidvalve to this field, make its motor space, the energy consumption of solving current like product great, the difficult technical problem who passes through the requirement when doing the explosion-proof, the difficult little space assembly that is used for in the valve body. The purpose is realized by the following technical scheme.

The utility model provides a miniature coreless motor gas fluid valve, the motor lid of this gas fluid valve, the gear box, the valve body connects gradually, be equipped with motor and gear assembly in the cavity of resorption that gear box and motor lid are connected, be equipped with first support in the epicoele that gear box and valve body are connected, first support and second support are the toper respectively, first support links as an organic wholely with the second support, simultaneously centre bore between them and the screwed pipe cover of valve seal cover link as an organic wholely, the valve seal cover is connected with the lead screw that stretches out the gear box, valve port below of valve body is global to be equipped with the last through-hole of fretwork, the valve port internal diameter of valve body is equipped with the inner seal circle, the top external diameter of valve seal cover is equipped with the sealed dish that the diameter is greater than the inner seal circle, sealed dish drives the inner seal circle counterbalance with the valve body through the lead screw. The utility model discloses a motor, including motor cover, motor shaft, gear wheel, lead screw, second double-deck gear, the motor is the coreless motor, the wire hole of motor cover one side is stretched out to the electric wire of coreless motor bottom, the motor shaft of coreless motor is equipped with the worm, the helicla flute one side of worm and the gear wheel meshing of first double-deck gear in the gear assembly, the pinion of first double-deck gear and the gear wheel meshing of second double-deck gear, the pinion of second double-deck gear and the gear wheel meshing of third double-deck gear, the pinion of third double-deck gear and the output gear meshing of lead screw one end, the lead screw is even as an organic whole with the output gear, first double-deck gear, the second double-deck gear, third double-deck gear is equipped with the gear shaft respectively, the central post of output gear bottom inserts the jack-post of motor cover. The first support, the second support and the valve sealing sleeve are sequentially connected to form a nut support, the first support and the second support at the lower end of the nut support are respectively used as a sealing sleeve and a supporting frame, and the first support is abutted and sealed with a screw rod extending hole of the gear box. Thereby the valve envelope drives the inner seal circle that offsets the valve body through motor and lead screw and realizes closing the valve, and first support drives the lead screw that offsets the gear box through motor and lead screw and stretches out the hole and realize opening the valve.

And a sealing plug is arranged in the inner diameter of a central hole of the valve sealing sleeve above the screw rod, and an O-shaped ring is arranged on the outer diameter of the sealing plug. The structure is convenient for the gas conduction when the screw rod moves up and down in the inner valve sealing sleeve.

And reinforcing ribs on two sides of the upper through hole at the valve port of the valve body are respectively provided with an installation edge lug, and the installation edge lugs are respectively provided with an installation hole. So that the valve body of the gas circulation valve is fixedly arranged at the air hole of the pipeline through the mounting lug.

The sealed external diameter symmetry of dish of valve envelope is equipped with bellied spacing ear, and the last through-hole of valve body is stretched out to the spacing ear of valve envelope, spacing ear department go up through-hole bottom one side and be equipped with decurrent bellied lock limit, and the lower through-hole top case mouth internal diameter of gear box bilateral symmetry is equipped with the lock hook, and the lock hook of gear box is fixed with the lock limit lock of valve body, and the guide way of gear box is inserted to the direction muscle of valve body external diameter. The stability that the aforesaid further improved valve seal cover reciprocated in the valve body to and the structure embodiment that gear box and valve body are connected.

The utility model has reasonable structure design, convenient use and production, small motor space occupation, low energy consumption and strong universality; the valve is suitable for being used as a micro gas fluid valve and improving the structure of the like products.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a perspective view illustrating an assembled state of fig. 1.

Fig. 3 is a schematic cross-sectional structure of fig. 2.

Reference numbers and designations: 1. the device comprises a motor cover, 2, a hollow cup motor, 3, an output gear, 4, a screw rod, 5, a gear box, 6, a first support, 7, a second support, 8, a valve sealing sleeve, 9, a sealing plug, 10, a valve body, 1001, a valve port, 1002, an upper through hole, 1003, a mounting lug, 11, a gear shaft, 12, a gear assembly, 13, a worm, 14 and an inner sealing ring.

Detailed Description

The structure and use of the present invention will now be further described with reference to the accompanying drawings. As shown in fig. 1-3, a motor cover 1, a gear box 5, and a valve body 10 of the gas fluid valve are sequentially connected, a motor and a gear assembly 12 are disposed in a lower cavity body connected with the motor cover of the gear box, a first support 6, a second support 7, and a valve sealing sleeve 8 are disposed in the upper cavity body connected with the valve body, the first support and the second support are respectively in a conical shape, the first support and the second support are connected into a whole, center holes of the first support and the second support are connected with a screw sleeve of the valve sealing sleeve into a whole, the valve sealing sleeve is connected with a lead screw 4 extending out of the gear box, a hollowed-out upper through hole 1002 is disposed on the circumferential surface below a valve port 1001 of the valve body, an inner sealing ring 14 is disposed on the inner diameter of the valve port of the valve body, a sealing disc with a diameter larger than that of the inner sealing ring is disposed on the outer diameter of the top of the valve sealing sleeve, and the sealing disc is driven by the lead screw to abut against the inner sealing ring of the valve body. The motor is a hollow cup motor 2, an electric wire at the bottom of the hollow cup motor extends out of a wire hole on one side of a motor cover, a motor shaft of the hollow cup motor is provided with a worm 13, one side of a spiral groove of the worm is meshed with a gear wheel of a first double-layer gear in a gear assembly, a pinion of the first double-layer gear is meshed with a gear wheel of a second double-layer gear, a pinion of the second double-layer gear is meshed with a gear wheel of a third double-layer gear, a pinion of the third double-layer gear is meshed with an output gear 3 at one end of a screw rod, the screw rod is connected with the output gear into a whole, the first double-layer gear, the second double-layer gear and the third double-layer gear are respectively provided with a gear shaft 11, and a central column at the bottom of the output gear is inserted into a shaft column of the motor cover. The first support, the second support and the valve sealing sleeve are sequentially connected to form a nut support, the first support and the second support at the lower end of the nut support are respectively used as a sealing sleeve and a supporting frame, and the first support is abutted and sealed with a screw rod extending hole of the gear box. And a sealing plug 9 is arranged in the inner diameter of a central hole of the valve sealing sleeve above the screw rod, and an O-shaped ring is arranged on the outer diameter of the sealing plug. The valve body is provided with a valve body, the valve body is provided with a through hole, the valve body is provided with a valve body opening, the through hole is provided with reinforcing ribs at two sides, the valve body opening is provided with mounting side lugs 1003 respectively, and the mounting side lugs are provided with mounting holes respectively. The sealed external diameter symmetry of dish of valve envelope is equipped with bellied spacing ear, and the last through-hole of valve body is stretched out to the spacing ear of valve envelope, spacing ear department go up through-hole bottom one side and be equipped with decurrent bellied lock limit, and the lower through-hole top case mouth internal diameter of gear box bilateral symmetry is equipped with the lock hook, and the lock hook of gear box is fixed with the lock limit lock of valve body, and the guide way of gear box is inserted to the direction muscle of valve body external diameter.

The working principle of the hot gas fluid valve is as follows: the output shaft end of the motor is provided with a worm, the worm is meshed with a first gear of the gear assembly, the first gear is meshed with a second gear, the second gear is meshed with a third gear, and the third gear is meshed with the output gear; the center of the output gear is penetrated with a screw rod, and the screw rod rotates to drive the nut bracket to move up or down. The O-shaped ring and the sealing plug are arranged on the nut support, the sealing sleeve and the supporting frame are arranged at the lower end of the nut support, the screw rod support component of the valve body component at the upper end of the gear box moves up to the valve body component, the valve sealing sleeve of the screw rod support component is tightly abutted against the valve body component to achieve valve closing, and the screw rod support component moves down to contact the end portion of the sealing sleeve to achieve valve opening.

At present, because of the large volume of a motor, the built-in valve for the similar gas is not strong in universality, and is not installed in places with small space. The hot gas fluid valve adopts the miniature hollow cup motor as a driving source, so that the volume is greatly reduced, and the explosion-proof performance is improved; the efficiency of the coreless motor is 25% higher than that of a common motor, so that the volume of the motor is reduced, but the torque is not reduced; meanwhile, the motor in the motor cover is horizontally installed, so that the space is saved.

The hot gas fluid valve has the following specific characteristics: 1. the output shaft end of the motor is provided with a worm, the worm is in matched transmission with a gear (worm wheel), the upper end of the worm wheel is meshed with a first gear, the first gear is meshed with a second gear, the second gear is meshed with a third gear, and the third gear is meshed with the output gear. 2. A hollow cup motor is arranged in the gear box. 3. The motor and the gear are transversely arranged, and the motor is horizontally arranged in the gear box. 4. The motor and the gear assembly are driven in a worm and worm gear mode. 5. An O-shaped ring and a sealing plug are arranged in the center of the upper end of the nut bracket.

Claims

1. A gas fluid valve of a miniature hollow cup motor is characterized in that a motor cover (1), a gear box (5) and a valve body (10) of the gas fluid valve are sequentially connected, a motor and a gear assembly (12) are arranged in a lower cavity body connected with the motor cover of the gear box, a first support (6), a second support (7) and a valve seal sleeve (8) are arranged in an upper cavity body connected with the valve body of the gear box, the first support and the second support are respectively conical, the first support and the second support are connected into a whole, meanwhile, central holes of the first support and the second support are connected with a solenoid sleeve of the valve seal sleeve into a whole, a valve seal sleeve is connected with a lead screw (4) extending out of the gear box, a hollowed-out upper through hole (1002) is arranged on the peripheral surface below a valve port (1001) of the valve body, an inner sealing ring (14) is arranged on the inner diameter of the valve port, a sealing disc with a diameter larger than that of the inner sealing ring is arranged on the outer diameter of the top of the valve seal sleeve, and the sealing disc is driven by the lead screw to abut against the inner surface of the valve body; the motor is characterized in that the motor is a hollow cup motor (2), an electric wire at the bottom of the hollow cup motor extends out of a wire hole in one side of a motor cover (1), a worm (13) is arranged on a motor shaft of the hollow cup motor, one side of a spiral groove of the worm is meshed with a large gear of a first double-layer gear in a gear assembly (12), a small gear of the first double-layer gear is meshed with a large gear of a second double-layer gear, a small gear of the second double-layer gear is meshed with a large gear of a third double-layer gear, a small gear of the third double-layer gear is meshed with an output gear (3) at one end of a screw rod (4), the screw rod is connected with the output gear into a whole, the first double-layer gear, the second double-layer gear and the third double-layer gear are respectively provided with a gear shaft (11), and a central column at the bottom of the output gear is inserted into a shaft column of the motor cover (1).

2. The micro coreless motor gas fluid valve according to claim 1, characterized in that the inner diameter of the central hole of the valve sealing sleeve (8) above the screw rod (4) is provided with a sealing plug (9), and the outer diameter of the sealing plug is provided with an O-ring.

3. The micro coreless motor gas fluid valve according to claim 1, wherein the valve body (10) is provided with mounting lugs (1003) on reinforcing ribs on two sides of an upper through hole (1002) at a valve port (1001), and the mounting lugs are provided with mounting holes respectively.

4. The micro coreless motor gas fluid valve according to claim 1, wherein the sealing disc of the valve sealing sleeve (8) is symmetrically provided with a raised limiting lug at the outer diameter, the limiting lug of the valve sealing sleeve extends out of an upper through hole (1002) of the valve body (10), a fastening edge which is raised downwards is arranged on one side of the bottom of the upper through hole at the limiting lug, a fastening hook is arranged on the inner diameter of a box opening above a lower through hole which is symmetrical on two sides of the gear box (5), the fastening hook of the gear box is fastened and fixed with the fastening edge of the valve body, and a guide rib of the outer diameter of the valve body is inserted into a guide groove of the gear box.