Transmission mechanism and compressor

Abstract

The invention discloses a transmission mechanism and a compressor, and belongs to the technical field of drilling equipment, and the transmission mechanism comprises a shell component, a rotor component and an elastic membrane. Through the cooperation of the first permanent magnet of the elastic diaphragm and the second permanent magnet on the disc part of the rotor component, the rotary motion can be converted into linear motion, and the transmission mechanism is of a permanent magnet and pure mechanical structure. Therefore, high-temperature occasions where electronic or electromagnetic components cannot be applied or occasions where electromagnetic interference is not allowed or occasions without a power supply and the like can be overcome, meanwhile, due to the fact that the number of parts is small, miniaturization of the mechanism is easier to achieve, reliability is higher, and manufacturing and maintenance are more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling equipment, and in particular relates to a transmission mechanism. Background Art

[0002] The current oil drilling equipment industry has put forward increasingly higher requirements on transmission mechanisms or devices, showing the characteristics of high reliability, long life, small size and light weight. Especially for extreme application occasions of active cooling devices while drilling, there are few existing transmission mechanisms that can meet the above characteristics and requirements at the same time. Most mechanisms are difficult to meet and be competent, resulting in the inability of equipment or devices to achieve the required functions.

[0003] For example, the prior art discloses a high-power optical isolator based on thermal magnetic technology, in which a magnetically conductive elastic metal diaphragm is installed between a permanent magnet and an electromagnet. When the electromagnet is not energized, the elastic metal diaphragm is in a state of inward stretching under the magnetic effect of the magnetic ring. When the electromagnet is energized, the magnetic field formed by the electromagnet is stronger than the magnetic field of the magnetic ring, and the elastic metal diaphragm is stretched and expanded outward under the magnetic field suction of the electromagnet. The above technology is mainly characterized in that electromagnetic force is used as the power to drive the diaphragm. After power is turned on, the electromagnetic force attracts the electromagnetic plunger or the permanent magnet to generate reciprocating motion of the moving diaphragm. Therefore, it is suitable for occasions where electromagnetics can be used. However, it cannot be applied to high-temperature occasions where electronic or electromagnetic components cannot be used, or occasions where electromagnetic interference is not allowed, or occasions without power supply. Summary of the invention

[0004] The object of the present invention is to provide a transmission mechanism to solve the problem of adaptability to high temperature, electromagnetic interference and no power supply in the electromagnetic diaphragm transmission mechanism in the prior art mentioned in the background art.

[0005] To achieve the above object, the present invention provides the following technical solution: a transmission mechanism, comprising:

[0006] A housing member having an axially extending assembly area formed therein and having a first end and a second end in the axial direction;

[0007] An elastic diaphragm, mounted on the first end of the shell member, and comprising a main body and a connecting portion located radially outside the main body;

[0008] A plurality of first permanent magnets are mounted on the elastic diaphragm and arranged in a ring array, and in the circumferential direction, the magnetic properties of adjacent first permanent magnets are opposite;

[0009] A rotor component is rotatably installed in the assembly interval, one end of the rotor component is arranged in the assembly interval, and the other end extends to the outside of the second end of the shell component along the axial direction;

[0010] A plurality of second permanent magnets are mounted on the end surface of the rotor component at one end of the assembly interval and correspond one-to-one to the first permanent magnets. The magnetic properties of the adjacent second permanent magnets in the circumferential direction are opposite. Based on the interaction force between the first permanent magnet and the second permanent magnet, the main body of the elastic diaphragm is deformed.

[0011] Furthermore, the rotor component includes a shaft body portion and a disc portion, the disc portion is arranged in the assembly area, one end of the shaft body portion is connected to the disc portion, and the other end extends along the axial direction to the outside of the second end of the shell component, and the second permanent magnet is installed on the end surface of the disc portion away from the shaft body portion.

[0012] Further, the assembly area is constituted as an axially extending through-hole structure, and includes:

[0013] A first section is formed by the first end 100a of the housing member extending axially inward;

[0014] The second section is formed by the axial inward extension of the second end of the shell component. The cross-sectional radius of the first section is greater than the cross-sectional radius of the second section, and the specifications of the disc portion 200b and the main body of the elastic diaphragm are both compatible with the cross-sectional specifications of the first section 101a.

[0015] Furthermore, the rotor component is rotatably mounted in the assembly area via two bearings, and the two bearings are spaced apart in the axial direction.

[0016] Furthermore, the transmission mechanism also includes an end plate component installed on the second end of the shell component, and the end plate component has a cover plate portion that fits the end surface of the second end 100b of the shell component and an extension portion that extends axially into the assembly interval.

[0017] Furthermore, the transmission mechanism also includes a positioning member, which is installed between the two bearings, and the assembly interval is formed with a flange portion extending radially inward in a direction away from the second end of the shell member, and the two bearings are respectively arranged between the flange portion and the positioning member and between the extension portion 103b and the positioning member.

[0018] Furthermore, the elastic diaphragm also includes a connecting portion arranged radially outside the main body and a gap portion arranged between the main body and the connecting portion, and the connecting portion is fixed to the first end surface of the shell component by a plurality of fasteners arranged in an annular array.

[0019] Furthermore, a plurality of holes arranged in a ring array are formed on the gap portion.

[0020] On the other hand, the present application discloses a compressor, comprising the above-mentioned transmission mechanism and

[0021] A cylinder member, assembled at the first end of the housing member and located axially outside the elastic diaphragm, and an axially extending active zone is defined in the cylinder member;

[0022] A piston member having a plate portion disposed along the cross section of the active interval and configured to be linearly movable in the axial direction;

[0023] A connecting rod body is axially extending, one end of the connecting rod body is connected to the main body of the elastic diaphragm, and the other end of the connecting rod body is connected to the piston member;

[0024] The barrel portion is mounted on one end of the cylinder member away from the shell member and defines a liquid zone together with the plate portion within the active zone;

[0025] The pipe member is extended in the axial direction, and one end of the pipe member passes through the cylinder portion and communicates with the liquid space.

[0026] Furthermore, the piston component also includes a cylinder portion formed by extending the outer edge of the plate portion in the axial direction, and one end of the connecting rod body is connected to the cylinder portion through a pin shaft.

[0027] Furthermore, the cylinder component has:

[0028] a sleeve portion, the sleeve portion extending in the axial direction and defining the active range;

[0029] The flange portion is formed by radially extending one end of the sleeve portion outwardly and is connected to the first end of the shell component.

[0030] Furthermore, the flange portion is formed with an annular groove at the main body portion of the elastic diaphragm and the disc portion of the rotor component.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present application can convert rotational motion into linear motion through the cooperation of the first permanent magnet of the elastic diaphragm and the second permanent magnet on the disc portion of the rotor component, and the transmission mechanism is a permanent magnet and a purely mechanical structure. Since it does not involve electronic and electromagnetic components, it can overcome high-temperature situations where electronic or electromagnetic components cannot be used, situations where electromagnetic interference is not allowed, or situations where there is no power supply. At the same time, due to the small number of parts, the mechanism is easier to miniaturize, has higher reliability, and is more convenient to manufacture and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a cross-sectional stereoscopic diagram of the transmission mechanism;

[0034] Figure 2It is the cross-sectional plan view of the transmission mechanism;

[0035] Figure 3 is a schematic diagram of a rotor component;

[0036] Figure 4 is a schematic diagram of an elastic diaphragm;

[0037] Figure 5 is the cross-sectional plan view of the compressor;

[0038] Figure 6 This is a cross-sectional perspective view of the compressor.

[0039] In the figure:

[0040] 100, housing member; 100a, first end; 100b, second end; 101, assembly section; 101a, first section; 101b, second section; 101c, flange portion; 102, positioning member; 103, end plate member; 103a, cover plate portion; 103b, extension portion; 104, bearing;

[0041] 200, rotor component; 200a, shaft body; 200b, disc portion; 201, second permanent magnet;

[0042] 300, elastic diaphragm; 300a, main body; 300b, connecting part; 300c, gap; 301, first permanent magnet;

[0043] 400, cylinder member; 400a, sleeve portion; 400b, flange portion; 401, liquid interval;

[0044] 500, cylinder head component; 501, pipeline component; 502, connecting rod body; 503, pin shaft;

[0045] 600, piston member; 600a, plate body; 600b, cylinder body. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0047] A transmission mechanism (hereinafter referred to as transmission mechanism), referring to Figure 1 and 2, including a shell component 100 and a rotor component 200, the shell component 100 extends along the axis O and has a first end 100a and a second end 100b in the axial direction, and an axially extending assembly interval 101 is defined in the shell component 100, correspondingly, the rotor component 200 is arranged along the axis O and is rotatably installed in the assembly interval 101, and one end of the rotor component 200 passes through the second end 100b of the shell component 100 and extends to the outside of the assembly interval 101, and is used to connect with an external rotating drive member (such as a motor) to drive the rotor component 200 to rotate. In some embodiments, the rotor component 200 is rotatably installed in the assembly interval 101 through at least two rotating support structures. Exemplarily, the rotating support structure is a bearing 104, and two bearings 104 are configured. The two bearings 104 are assembled in the gap between the wall of the rotor component 200 and the wall of the assembly interval 101, and are spaced apart in the axial direction. The rotational connection between the shell component 100 and the rotor component 200 is realized through the bearing 104.

[0048] In some embodiments, reference Figure 1 and 2 The assembly section 101 is constituted as a through hole structure extending along the axis O, and includes a first section 101a and a second section 101b, wherein the second section 101b is formed by the second end 100b of the shell member 100 extending inwardly along the axial direction, and correspondingly, the first section 101a is formed by the first end 100a of the shell member 100 extending inwardly along the axial direction, and further referring to Figure 1 and 2 The transmission structure further comprises an end plate member 103 mounted on the second end 100b of the housing member 100, the end plate member 103 comprising a cover plate portion 103a fitted with the end surface of the second end 100b of the housing member 100 and an extension portion 103b axially extending into the second section 101b, wherein the cover plate portion 103a is provided with a hole for one end of the rotor member 200 to pass through, Figure 1 and 2 The assembly section 101 forms a flange portion 101c extending radially inward at a position away from the second end 100b of the shell member 100. Correspondingly, the transmission structure also includes a positioning member 102 installed in the second section 101b. The positioning member 102 is an axially extending cylindrical member. When the rotating support structure is two bearings 104, the positioning member 102 is arranged between the two bearings 104 in the axial direction, and cooperates with the flange portion 101c and the extension portion 103b of the end plate member 103 to achieve axial limitation of the bearing 104.

[0049] Reference Figure 1 and 2 , and combined with Figure 4The transmission mechanism further includes an elastic diaphragm 300 mounted on the first end 100a of the shell member 100, the elastic diaphragm 300 is made of metal, non-metal or composite material, and is configured to be elastically deformable. In some embodiments, the elastic diaphragm 300 has a main body 300a located at a central position and a connecting portion 300b located radially outward of the main body 300a, wherein the connecting portion 300b is assembled to the end surface of the first end 100a of the shell member 100 by fixing members such as bolts (such as hexagon socket bolts), and a plurality of bolts are arranged in a circular array. At this time, the connecting portion 300b of the elastic diaphragm 300 is fixed, and the main body 300a of the elastic diaphragm 300 can be elastically deformed in, for example, an axial direction under the action of an external force. Continue to refer to Figure 3 The main body 300a is provided with a plurality of first permanent magnets 301 arranged in a ring array, and in the circumferential direction, the magnetism of adjacent first permanent magnets 301 is opposite. In some embodiments, a gap portion 300c is formed between the main body 300a and the connecting portion 300b, and the gap portion 300c is configured as a hollow design, that is, a plurality of holes (such as arc holes) arranged in a ring array are formed on the gap portion 300c, so as to improve the deformation ability of the main body 300a in the elastic diaphragm 300.

[0050] Reference Figure 2 , and combined with Figure 3The rotor component 200 has a shaft portion 200a and a disc portion 200b, wherein one end of the shaft portion 200a is arranged on the axial outer side of the second end 100b of the shell component 100, and the other end extends along the axial direction to the first section 101a of the assembly interval 101 and is connected to the disc portion 200b. In some embodiments, the cross-sectional area of ​​the first section 101a in the assembly interval 101 is greater than the cross-sectional area of ​​the second section 101b, that is, the cross-sectional radius of the first section 101a is greater than the cross-sectional radius of the second section 101b. At this time, the specifications of the first section 101a can be adapted to the disc portion 200b of the rotor component 200, thereby facilitating the subsequent second permanent magnet 201 on the disc portion 200b and the elastic diaphragm 300. The interaction of the first permanent magnet 301, in some embodiments, the specifications of the disc portion 200b in the above-mentioned rotor component 200 are compatible with the specifications of the main body portion 300a in the elastic diaphragm 300, and the end surface of the disc portion 200b away from the shaft body portion 200a is provided with a second permanent magnet 201 arranged in a ring array, and at the same time, in the circumferential position, the magnetism of adjacent second permanent magnets 201 is opposite, and the number, specifications and radial position of the second permanent magnets 201 are corresponding to the first permanent magnet 301. During the operation of the transmission mechanism, the second permanent magnet 201 configured on the disc portion 200b of the rotor component 200 moves with the rotation of the rotor component 200. During the movement of the second permanent magnet 201, at the same radial position, the elastic The magnetism of the first permanent magnet 301 on the main body 300a of the diaphragm 300 and the second permanent magnet 201 on the disc portion 200b of the rotor component 200 repeatedly changes between the same and opposite polarities, thereby generating a magnetic force that periodically changes between a repulsive force and an attractive force between the main body 300a of the elastic diaphragm 300 and the disc portion 200b of the rotor component 200. Under the action of the changing magnetic force, in the axial direction, the main body 300a of the elastic diaphragm 300 can repeatedly deform between being away from the disc portion 200b and approaching the disc portion 200b, thereby driving the subsequent piston rod body to repeatedly move linearly in the axial direction, that is, realizing the conversion of the rotational motion of the rotor component 200 to the linear motion of the piston rod body. Specifically, in the rotor component During the rotation of the rotor component 200, the circumferential position of the second permanent magnet 201 on the disk portion 200b of the rotor component 200 is constantly changing. In the axial direction, when the position of the S-pole second permanent magnet 201 on the disk portion 200b corresponds to the S-pole first permanent magnet 301 on the main body portion 300a, the main body portion 300a of the elastic diaphragm 300 is subjected to a magnetic force (i.e., a repulsive force) in a direction away from the disk portion 200b, and elastically deforms in a direction away from the disk portion 200b. When the position of the S-pole second permanent magnet 201 on the disk portion 200b corresponds to the N-pole first permanent magnet 301 on the main body portion 300a (i.e., the position of the N-pole second permanent magnet 201 on the disk portion 200b corresponds to the N-pole first permanent magnet 301 on the main body portion 300a),The main body 300a of the elastic diaphragm 300 is subjected to a magnetic force (i.e., an attractive force) in a direction close to the disc portion 200b, and undergoes elastic deformation in a direction close to the disc portion 200b.

[0051] The present application further discloses a compressor (hereinafter referred to as compressor), Figure 5 and 6 , the compressor is based on the above-mentioned transmission mechanism and also includes a cylinder member 400, which is assembled on the first end 100a of the shell member 100 and is located axially outside the elastic diaphragm 300. In some embodiments, the cylinder member 400 has a sleeve portion 400a and a flange portion 400b, wherein the sleeve portion 400a is extended in the axial direction and defines an axially extending active range inside it. Correspondingly, the flange portion 400b is constituted as a flange structure formed by radially extending outward from one axial end of the sleeve portion 400a, and is connected to the first end 100a of the shell member 100. Exemplarily, the stud end of the fastener (such as a hexagon socket bolt) for fixing the elastic diaphragm 300 passes through the flange portion 400b of the cylinder member 400 and the connecting portion 300b of the elastic diaphragm 300 in sequence and then is screwed into the end surface of the first end 100a of the shell member 100 to realize the assembly of the cylinder member 400, the elastic diaphragm 300 and the shell member 100. Referring to Figure 5 and 6 The flange portion 400 b of the cylinder member 400 is provided with an annular groove at the position of the main body portion 300 a of the elastic diaphragm 300 and the disc portion 200 b of the rotor member 200 .

[0052] Continue to refer to Figure 5 and 6 , the compressor further includes a piston member 600 and a connecting rod body 502, wherein the piston member 600 has a plate body portion 600a arranged along the cross-section of the active interval, and is configured to be able to slide along the inner wall of the sleeve portion 400a, correspondingly, the connecting rod body 502 is arranged along the axis O, and one end of the connecting rod body 502 is connected to the main body 300a of the elastic diaphragm 300, illustratively, one end of the connecting rod body 502 can be connected to the main body 300a of the elastic diaphragm 300 by a bolt or a ball joint structure, and the connecting rod body 502 is further described, and the other end of the connecting rod body 502 is connected to the piston member 600, at which time the main body 300a of the elastic diaphragm 300 undergoes elastic deformation during the operation of the compressor, and then drives the piston member 600 to move linearly in the axial direction within the active interval through the piston rod body, in some embodiments, refer to Figure 5The piston component 600 further includes a cylinder portion 600b, which is a cylindrical component formed by extending the outer edge of the plate portion 600a in the axial direction. Correspondingly, one end of the connecting rod body 502 can be connected to the cylinder portion 600b of the piston component 600 through a pin shaft 503 or a ball joint structure to achieve the connection between the connecting rod body 502 and the piston component 600.

[0053] Continue to refer to Figure 5 The compressor further comprises a cylinder head component 500 and a pipe component 501, wherein the cylinder head component 500 is mounted on one end of the sleeve portion 400a in the cylinder body component 400 away from the flange portion 400b, and defines a liquid interval 401 together with the plate portion 600a of the piston component 600 in the active interval. Correspondingly, the pipe component 501 is arranged along the axis O, and one end of the pipe component 501 passes through the cylinder head component 500 and is connected with the liquid interval 401. When the piston component 600 moves linearly in the axial direction with the elastic deformation of the main body portion 300a of the elastic diaphragm 300, the volume of the liquid interval 401 changes with the movement of the piston component 600, and the external load is driven to move linearly through the flow of the fluid, thereby realizing the change from rotary drive to linear drive.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission mechanism, characterized in that: include: A housing member (100) having an axially extending assembly area (101) formed therein and having a first end (100a) and a second end (100b) in the axial direction; An elastic diaphragm (300) is mounted on the first end (100a) of the housing component (100) and comprises a main body (300a) and a connecting portion (300b) located radially outside the main body (300a); A plurality of first permanent magnets (301) are mounted on the elastic diaphragm (300) and arranged in a ring array, and in the circumferential direction, the magnetism of adjacent first permanent magnets (301) is opposite; A rotor component (200) is rotatably mounted in the assembly section (101), one end of the rotor component (200) being disposed in the assembly section (101), and the other end extending in an axial direction to the outside of the second end (100b) of the housing component (100); A plurality of second permanent magnets (201) are mounted on the end surface of the rotor component (200) at one end of the assembly interval (101), and correspond one-to-one to the first permanent magnets (301). The magnetic properties of the adjacent second permanent magnets (201) in the circumferential direction are opposite. Based on the interaction force between the first permanent magnets (301) and the second permanent magnets (201), the main body (300a) of the elastic diaphragm (300) is deformed.

2. A transmission mechanism according to claim 1, characterized in that: The rotor component (200) comprises a shaft portion (200a) and a disc portion (200b), wherein the disc portion (200b) is arranged in the assembly area (101), one end of the shaft portion (200a) is connected to the disc portion (200b), and the other end extends along the axial direction to the outside of the second end of the shell component (100), and the second permanent magnet (201) is mounted on an end surface of the disc portion (200b) away from the shaft portion (200a).

3. A transmission mechanism according to claim 2, characterized in that: The assembly area (101) is configured as an axially extending through-hole structure and comprises: A first section (101a) formed by axially extending the first end (100a) of the housing member (100) inwardly; The second section (101b) is formed by the second end (100b) of the shell member (100) extending axially inward, the cross-sectional radius of the first section (101a) is greater than the cross-sectional radius of the second section (101b), and the specifications of the disc portion (200b) and the main body (300a) of the elastic diaphragm (300) are both compatible with the cross-sectional specifications of the first section (101a).

4. A transmission mechanism according to claim 2 or 3, characterized in that: The rotor component (200) is rotatably mounted in the assembly area (101) via two bearings (104), and the two bearings (104) are spaced apart in the axial direction.

5. A transmission mechanism according to claim 1, characterized in that: The transmission mechanism also includes an end plate component (103) mounted on the second end (100b) of the housing component (100), the end plate component (103) comprising a cover plate portion (103a) fitted with an end surface of the second end (100b) of the housing component (100) and an extension portion (103b) extending axially into the assembly interval (101).

6. A transmission mechanism according to claim 4, characterized in that: The transmission mechanism also includes a positioning member (102), the positioning member (102) is installed between the two bearings (104), and the assembly interval (101) is formed with a flange portion (101c) extending radially inward in a direction away from the second end (100b) of the shell member (100), and the two bearings (104) are respectively arranged between the flange portion (101c) and the positioning member (102) and between the extension portion 103b and the positioning member (102).

7. A transmission mechanism according to claim 1, characterized in that: The elastic diaphragm (300) further comprises a connecting portion (300b) arranged radially outside the main body (300a) and a gap portion (300c) arranged between the main body (300a) and the connecting portion (300b); the connecting portion (300b) is fixed to the end face of the first end (100a) of the shell member (100) by a plurality of fasteners arranged in an annular array.

8. A transmission mechanism according to claim 7, characterized in that: The gap portion (300c) is formed with a plurality of holes arranged in a circular array.

9. A compressor, characterized in that: comprising a transmission mechanism as claimed in any one of claims 1 to 8 and A cylinder member (400) is assembled at the first end (100a) of the housing member (100) and is located axially outside the elastic diaphragm (300), and an axially extending active zone is defined in the cylinder member (400); The piston member (600) has a plate body (600a) arranged along the cross section of the active interval and is configured to be linearly movable along the axial direction; A connecting rod body (502) is arranged to extend in the axial direction, and one end of the connecting rod body (502) is connected to the main body (300a) of the elastic diaphragm (300), and the other end is connected to the piston member (600); A cylinder cover component (500) is mounted on an end of the cylinder body component (400) away from the housing component (100), and defines a liquid zone (401) together with the plate body (600a) within the movable zone; The pipe member (501) is extended in the axial direction, and one end of the pipe member (501) passes through the cylinder head member (500) and is in communication with the liquid space (401).

10. A compressor according to claim 9, characterized in that: The piston component (600) further comprises a cylindrical portion (600b) formed by extending the outer edge of the plate portion (600a) in the axial direction, and one end of the connecting rod body (502) is connected to the cylindrical portion (600b) via a pin shaft (503).

11. A compressor according to claim 9, characterized in that: The cylinder member (400) has: a sleeve portion (400a), the sleeve portion (400a) extending in the axial direction, and the active range is defined by the sleeve portion (400a); The flange portion (400b) is formed by radially extending one end of the sleeve portion (400a) outwardly and is connected to the first end (100a) of the housing member (100).

12. A compressor according to claim 11, characterized in that: The flange portion (400b) is formed with an annular groove at the position of the main body portion (300a) of the elastic diaphragm (300) and the disc portion (200b) of the rotor component (200).

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