CN209030045U - A kind of drive motor in oil field - Google Patents

Abstract

The utility model relates to motor apparatus technical fields, and disclose a kind of drive motor in oil field, including motor body and output shaft, the end of the motor body, which is fixedly connected with, connects electric cover, the end movable sleeve for connecing electricity cover is connected to mounting disc, for the output shaft through connecing electricity cover and mounting disc and being fixedly attached with mounting disc, the side of the mounting disc is fixedly connected with fixes sleeve, there are three the quantity of the fixes sleeve is set.The utility model is stretched in link slot and driver slot by connecting key; realize that coupling disc is synchronous with drive disk or relatively rotates with this; when power grid is powered off because of catastrophic failure; electromagnet loses magnetic field; connecting key deviates from link slot and driver slot under the pulling force effect of tension spring; thus; only coupling disc with pumping unit load high-speed rotation; drive disk can't high-speed rotation therewith; so that motor has the self-protection function under burst power blackout situation, very high generating voltage breakdown internal component will not be generated.

Description

A kind of drive motor in oil field

Technical field

The present invention relates to motor apparatus technical field, specially a kind of drive motor in oil field.

Background technique

Permanent magnet synchronous motor is the synchronous motor that synchronous rotary magnetic field is generated by permanent magnet excitation, asynchronous with conventional three-phase Motor is compared, on rotor to be mounted with a set of permanent magnet more, is commonly called as magnet steel, so that rotor generates rotating excitation field, further, by three-phase Stator winding incudes three-phase symmetrical electric current under rotating excitation field effect, very big because having when permanent magnet synchronous motor initial start Magnetic moment, thus, it is usually used in the engine of oil-field oil pumper, to achieve the purpose that economize on electricity.

Just because of the permanent magnetism iron construction of permanent magnet synchronous motor itself designs, it is easier to send out on pumping unit than asynchronous machine Electricity, when power grid catastrophic failure, the stator of permanent magnet synchronous motor is powered off, and the loading section of pumping unit can drag permanent magnet synchronous motor Free high speed rotation, the generating voltage of permanent magnet synchronous motor will largely be much higher than voltage rating at this time, cause permanent magnetism same It walks motor and control route insulation breakdown and damages, for this purpose, proposing a kind of drive motor in oil field, it is intended to it is prominent to solve power grid Send out the problem of motor self-protection lacks under failure power blackout situation.

Summary of the invention

For the existing pumping unit driving motor proposed in background technique in the case where meeting power grid burst power blackout situation it is existing not Foot, the present invention provides a kind of drive motors in oil field, have fast under motor self-protection function and burst disconnection fault Speed tends to be steady the advantages of stopping, and solves and mentioned above in the background art makes permanent magnetism same because power grid happens suddenly disconnection fault Step motor, which leads to the problem of the generating voltage higher than rated power, causes the damage of internal component insulation breakdown.

The invention provides the following technical scheme: a kind of drive motor in oil field, including motor body and output shaft, institute The end for stating motor body, which is fixedly connected with, connects electric cover, and the end movable sleeve for connecing electricity cover is connected to mounting disc, the output shaft Through connecing electricity cover and mounting disc and being fixedly attached with mounting disc, the side of the mounting disc is fixedly connected with fixes sleeve, described There are three the quantity of fixes sleeve is set, and three fixes sleeves are distributed in the side annular array of mounting disc, the fixes sleeve One end of inner cavity is fixedly installed with electromagnet, and the other end movable sleeve of the fixes sleeve inner cavity is connected to connecting key, the connection Key mapping is connected to baffle I in the external fixing sleeve in fixes sleeve, and the end that the connecting key is located in fixes sleeve is fixedly connected There is magnetic to denounce plate, the magnetic pole of magnetic reprimand plate side is located at solid with the field pole of electromagnet energization generation on the contrary, the connecting key The end fixing sleeve for determining cartridge exterior is connected to baffle II, and the side of the baffle II is fixedly connected with tension spring, the tension spring it is another One end is fixedly connected with one end of fixes sleeve, and the end of the output shaft is equipped with coupling disc, the internal activity of the coupling disc It is socketed with drive disk, the inside of the drive disk and the outside of output shaft are fixedly attached, the inner sidewall of the coupling disc and driving Offering link slot and driver slot on the lateral wall of disk respectively, the quantity of the link slot and driver slot is respectively equipped with three, and three A link slot and driver slot are distributed and single in the lateral wall circular array of the inner sidewall of coupling disc and drive disk respectively Link slot distribution corresponding with driving groove location, the end shape of rectangular inner groovy and connecting key that the link slot and driver slot surround Shape is adapted and to be rectangular, and the interior bottom of the link slot and driver slot is fixedly installed with permanent magnets, and the mounting disc, which is located at, to be connect Side in electricity cover is fixedly installed with collector ring, and the upper and lower ends for connecing electric cover inner wall are respectively equipped with brush, and the end of brush Portion is contacted with the outer wall of collector ring, and the energization of the electromagnet is electrically connected to the terminal box of motor body by collector ring and brush Interior, the other side of the coupling disc is opened up there are three connecting shaft hole, and three connecting shaft holes and the position of three link slots are wrong Position arrangement.

Preferably, the square-section bar that the connecting key is cast by nonmagnetic carbon steel, the connecting key protrude into link slot End be equipped with permanent magnet, and the magnetic pole of the permanent magnet is opposite with the magnetic pole of permanent magnets opposite end.

Preferably, the depth that the connection key length of II side of baffle is exactly link slot removes the thickness of permanent magnets Value.

Preferably, when the baffle II is close to coupling disc side, the elastic pulling force size that the tension spring Tensile generates is situated between The magnetic field force size repelled each other with magnetic reprimand plate is generated in the energization of the magnetic phase suction size and electromagnet of connecting key end and permanent magnets Between.

Preferably, the coupling disc is located at link slot side front annular and is evenly equipped with several magnetic resistance blocks, and each magnetic resistance The front of block is identical with respect to the magnetic pole of connecting key side as permanent magnets, the magnetic that the magnetic resistance block and connecting key end permanent magnet generate Property adsorption capacity be less than magnetic adsorptive power when connecting key end permanent magnet leaves permanent magnets between the two.

Preferably, the interior wall circular of the coupling disc and be uniformly embedded with multiple groups roller bearing, and the outer wall of multiple groups roller bearing with The outer wall of drive disk is in contact.

Preferably, it is electrically connected between the electromagnet and motor body internal stator so that motor body internal stator is logical Electricity is compared with the time-delay relay that electromagnet lags.

The present invention have it is following the utility model has the advantages that

1, the present invention by connecting key in link slot and driver slot stretch, with this realize coupling disc it is synchronous with drive disk or It relatively rotates, when power grid is powered off because of catastrophic failure, electromagnet loses magnetic field, and connecting key is deviate to connect under the pulling force effect of tension spring Access slot and driver slot, as a result, only coupling disc with pumping unit load high-speed rotation, drive disk can't high-speed rotation therewith, from And motor is made to have the self-protection function under burst power blackout situation, very high generating voltage will not be generated and puncture internal structure Part.

2, permanent magnet is arranged by setting permanent magnets and in the end of connecting key in the present invention, so that connecting key and permanent magnets It is more firm that contact is adsorbed when close, when guaranteeing that motor runs well, the transmission performance of coupling disc and drive disk, meanwhile, Cooperate magnetic resistance block, when happen suddenly disconnection fault when, coupling disc because pump load drive high-speed rotation under, need to overcome connecting key end Magnetic adsorptive power acting between the permanent magnet and magnetic resistance block and permanent magnets in portion, enables coupling disc quick in a short time It stops operating, so that motor is quickly tended towards stability after disconnection fault generation, improve security performance.

Detailed description of the invention

Fig. 1 is schematic structural view of the invention；

Fig. 2 is sectional perspective schematic diagram at the coupling disc of Fig. 1 of the present invention；

Fig. 3 is the axis diagrammatic cross-section of Fig. 2 of the present invention；

Fig. 4 is the dorsal view of Fig. 2 of the present invention；

Fig. 5 is magnetic resistance block of the present invention in coupling disc front distribution schematic diagram；

Fig. 6 installs the schematic cross-section of roller bearing additional between coupling disc of the present invention and drive disk.

In figure: 1, motor body；2, output shaft；3, electric cover is connect；4, mounting disc；5, fixes sleeve；6, electromagnet；7, it connects Key；8, baffle I；9, magnetic denounces plate；10, baffle II；11, tension spring；12, coupling disc；13, drive disk；14, link slot；15, it drives Slot；16, permanent magnets；17, collector ring；18, brush；19, connecting shaft hole；20, magnetic resistance block；21, roller bearing.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Fig. 1-6, a kind of drive motor in oil field, including motor body 1 and output shaft 2 are please referred to, motor body 1 End, which is fixedly connected with, connects electricity cover 3, and the end movable sleeve for connecing electricity cover 3 is connected to mounting disc 4, and output shaft 2, which runs through, connects electricity cover 3 and installation Disk 4 is simultaneously fixedly attached with mounting disc 4, and mounting disc 4 is synchronized with output shaft 2 and rotated coaxially, mounting disc 4 and connect electricity cover 3 between work Dynamic sealed by axle envelope of turn rotates, and the side of mounting disc 4 is fixedly connected with fixes sleeve 5, and the quantity of fixes sleeve 5 is equipped with three It is a, and three fixes sleeves 5 are distributed in the side annular array of mounting disc 4, three fixes sleeves 5 and its connection component constitute three Angle drive configuration, so that transmission is more stable, one end of 5 inner cavity of fixes sleeve is fixedly installed with electromagnet 6, in fixes sleeve 5 The other end movable sleeve of chamber is connected to connecting key 7, and the external fixing sleeve that connecting key 7 is located in fixes sleeve 5 is connected to baffle I 8, connection The end that key 7 is located in fixes sleeve 5 is fixedly connected with magnetic reprimand plate 9, the plate that magnetic reprimand plate 9 is made by permanent-magnet material, and magnetic denounces plate 9 The magnetic pole of side is powered the field pole generated on the contrary, the end that connecting key 7 is located at outside fixes sleeve 5 is fixed with electromagnet 6 It is socketed with baffle II 10, the side of baffle II 10 is fixedly connected with tension spring 11, the other end of tension spring 11 and one end of fixes sleeve 5 Be fixedly connected, wherein when baffle II 10 and coupling disc 12 contact, the end of connecting key 7 just with a side contacts of permanent magnets 16, Simultaneously baffle I 8 and 5 inner cavity of fixes sleeve end thereof contacts, at this time tension spring 11 generate reply pulling force be greater than 7 end of connecting key and The attracting power of permanent magnets 16 and the magnetic mutual expelling force for being less than electromagnet 6 and the magnetic reprimand generation of plate 9, are guaranteeing that electromagnet 6 is powered just with this Under normal working condition, connecting key 7, which can be stablized, to be protruded into link slot 14 and driver slot 15, undertake coupling disc 12 and drive disk 13 it Between transmission parts, electromagnet 6 power off when, connecting key 7 can be disconnected 14 He of slot under the reply pulling force effect of tension spring 11 Driver slot 15 terminates the transmission effect between coupling disc 12 and drive disk 13.

The end of output shaft 2 is equipped with coupling disc 12, and the internal activity of coupling disc 12 is socketed with drive disk 13, drive disk 13 The internal outside with output shaft 2 is fixedly attached, and the socket relationship of output shaft 2 and drive disk 13 can be realized by being integrally formed, and Coupling disc 12 is then installed with pump load and is fixed, and coupling disc 12 is installed and just realizes socket effect after fixing with drive disk 13 Fruit, installation site of the installation site of drive disk 13 then by permanent magnet synchronous motor on pumping unit determine, the inside of coupling disc 12 Link slot 14 and driver slot 15, the quantity point of link slot 14 and driver slot 15 are offered on the lateral wall of wall and drive disk 13 respectively There are three not setting, three link slots 14 and driver slot 15 are in respectively ring in the lateral wall of the inner sidewall of coupling disc 12 and drive disk 13 The corresponding distribution of shape array distribution and single link slot 14 and 15 position of driver slot, link slot 14 and driver slot 15 surround rectangular interior Groove is adapted with the end shape of connecting key 7, the end shape of connecting key 7 be it is rectangular, link slot 14 and driver slot 15 it is interior Bottom is fixedly installed with permanent magnets 16, and mounting disc 4 is located at the side connect in electricity cover 3 and is fixedly installed with collector ring 17, connects in electricity cover 3 The upper and lower ends of wall are respectively equipped with brush 18, and the end of brush 18 is contacted with the outer wall of collector ring 17, and the energization of electromagnet 6 is logical It crosses collector ring 17 and brush 18 is electrically connected in the terminal box of motor body 1, the other side of coupling disc 12 opens up that there are three connecting shafts The location dislocation of hole 19, three connecting shaft holes 19 and three link slots 14 is arranged.

Wherein, the square-section bar that connecting key 7 is cast by nonmagnetic carbon steel, non-magnetic material are made connecting key 7, may make The operational factors of power is not influenced by connecting key 7 between electromagnet 6, magnetic reprimand plate 9 and permanent magnets 16, production easy to produce, connection Key 7 protrudes into the end in link slot 14 equipped with permanent magnet, and the magnetic pole of the permanent magnet and the magnetic pole of 16 opposite end of permanent magnets on the contrary, The permanent magnet of 7 end of connecting key setting is used to generate adsorption capacity with permanent magnets 16, absorption fastening, another party when on the one hand contacting Face, when separation, generate absorption resistance, hinder coupling disc 12 with respect to the rotation of connecting key 7.

Wherein, the depth that the length of the connecting key 7 of II 10 side of baffle is exactly link slot 14 removes the thickness of permanent magnets 16 Angle value, the length of connecting key 7 is the connecting key 7 of II 10 side of baffle and its permanent magnet total length of end installation herein, that is, is kept off When plate II 10 and coupling disc 12 contact, connecting key 7 is just contacted with permanent magnets 16, with prevent the permanent magnet of 7 end of connecting key with Permanent magnets 16 hit rapid wear.

Wherein, when baffle II 10 is close to 12 side of coupling disc, the elastic pulling force size that 11 Tensile of tension spring generates is between even Magnetic phase suction size and electromagnet 6 energization for connecing 7 end of key and permanent magnets 16 generate the magnetic field force size repelled each other with magnetic reprimand plate 9 Between, when guaranteeing that electromagnet 6 powers off, connecting key 7 can be retracted and be disconnected the inside of slot 14 and driver slot 15 by tension spring 11, When electromagnet 6 is powered, the electromagnetism repulsive interaction generated between electromagnet 6 and magnetic reprimand plate 9 can overcome tension spring 11 to generate because of deformation Pulling force and push connecting key 7 to enter in link slot 14 and driver slot 15.

Wherein, coupling disc 12 is located at 14 side front annular of link slot and is evenly equipped with several magnetic resistance blocks 20, and each magnetic resistance The front of block 20 is identical with respect to the magnetic pole of 7 side of connecting key as permanent magnets 16, and magnetic resistance block 20 and 7 end permanent magnet of connecting key generate Magnetic adsorptive power be less than magnetic adsorptive power when 7 end permanent magnet of connecting key leaves permanent magnets 16 between the two, magnetic resistance block 20 It is made of permanent-magnet material, several magnetic resistance blocks 20 refer to magnetic resistance block 20 according to the annular distance etc. between two link slots 14 herein Away from arrangement, and the setting of magnetic adsorptive power size, it is therefore intended that, after electromagnet 6 powers off, drive disk 13 and coupling disc 12 understand from It is finally stopped by turning to, and is to connect because the effect of adsorption capacity guarantees that drive disk 13 and the rotation of coupling disc 12 are finally stopped position The position corresponding with link slot 14 and driver slot 15 of key 7 is connect, when in order to motor device starting, connecting key 7 is directly preferentially entered Link slot 14 and driver slot 15 complete the transmission connection of coupling disc 12 and drive disk 13.

Wherein, the interior wall circular of coupling disc 12 and be uniformly embedded with multiple groups roller bearing 21, and the outer wall of multiple groups roller bearing 21 with The outer wall of drive disk 13 is in contact, and roller bearing 21 is embedded the inner wall in coupling disc 12 and can rotate in the wall trench of coupling disc 12 Without the wall trench that falls off, roller bearing 21 is for reducing drive disk 13 and the frictional resistance when relative rotation of coupling disc 12, with the company of preventing The inner wall of reel 12 and the outer wall of drive disk 13 lose the stability of socket rotation because of abrasion.

Wherein, it is electrically connected between 1 internal stator of electromagnet 6 and motor body so that 1 internal stator of motor body is powered Compared with the time-delay relay that electromagnet 6 lags, time-delay relay is used for when starting motor body 1, preferential to start electromagnet 6, After electromagnet 6 starts, connecting key 7 is sent in link slot 14 and driver slot 15, preferential to complete coupling disc 12 and drive disk 13 Transmission connection, can start motor body 1 and run well.

Working principle of the present invention is as follows:

After electrical power, under the control action of time-delay relay, electromagnet 6, which is first powered, generates magnetic field, denounces plate 9 with magnetic The field pole of body repels each other, and magnetic reprimand plate 9 is pushed to move far from electromagnet 6, so that connecting key 7 be pushed to enter link slot 14 and driving In slot 15, while tension spring 11 being driven to stretch, also, to generate magnetism attracting for the permanent magnet of 7 end of connecting key and permanent magnets 16, then Electric motor starting drives output shaft 2 to rotate, and drives drive disk 13 to rotate by output shaft 2, to pass through 7 band of connecting key by drive disk 13 Dynamic coupling disc 12 rotates, and then is rotated with coupling disc 12 by the pump load that connecting shaft hole 19 is connect.

When the power-off of power grid catastrophic failure, the power-off of electromagnet 6 loses magnetic field, and connecting key 7 is made in the reply pulling force of tension spring 11 It under, is detached from out of link slot 14 and driver slot 15, until baffle II 10 is contacted with the end of baffle I 8, connecting key 7 is just complete In total detachment link slot 14 and driver slot 15, at this point, coupling disc 12 and drive disk 13 lose transmission connection performance, coupling disc 12 High-speed rotation can be generated under load dragging, and drive disk 13 then can tend to stop operating under the effect of the magnetic resistance in motor, together When, coupling disc 12 rotates the permanent magnet that need to overcome 7 end of connecting key and magnetic resistance block 20 and permanent magnets 16 generate magnetic adsorptive power Acting can also make coupling disc 12 quickly tend to rotation and stop.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (7)

1. a kind of drive motor in oil field, including motor body (1) and output shaft (2), it is characterised in that: the motor sheet The end of body (1), which is fixedly connected with, connects electricity cover (3), and the end movable sleeve for connecing electricity cover (3) is connected to mounting disc (4), described defeated Shaft (2) through connecing electricity cover (3) and mounting disc (4) and being fixedly attached with mounting disc (4), fix by the side of the mounting disc (4) It is connected with fixes sleeve (5), there are three the quantity of the fixes sleeve (5) is set, and three fixes sleeves (5) are in mounting disc (4) Side annular array distribution, one end of fixes sleeve (5) inner cavity is fixedly installed with electromagnet (6), the fixes sleeve (5) other end movable sleeve of inner cavity is connected to connecting key (7), and the connecting key (7) is located at the external fixing sleeve in fixes sleeve (5) It is connected to baffle I (8), the connecting key (7) is located at the end in fixes sleeve (5) and is fixedly connected with magnetic reprimand plate (9), the magnetic reprimand The magnetic pole of plate (9) side and electromagnet (6) are powered the field pole generated on the contrary, the connecting key (7) is located at fixes sleeve (5) External end fixing sleeve is connected to baffle II (10), and the side of the baffle II (10) is fixedly connected with tension spring (11), the drawing The other end of spring (11) is fixedly connected with one end of fixes sleeve (5), and the end of the output shaft (2) is equipped with coupling disc (12), The internal activity of the coupling disc (12) is socketed with drive disk (13), the inside of the drive disk (13) and output shaft (2) it is outer Portion is fixedly attached, offered respectively on the inner sidewall of the coupling disc (12) and the lateral wall of drive disk (13) link slot (14) and The quantity of driver slot (15), the link slot (14) and driver slot (15) is respectively equipped with three, three link slots (14) and Driver slot (15) is distributed in the lateral wall circular array of the inner sidewall of coupling disc (12) and drive disk (13) respectively and individually connects Access slot (14) distribution corresponding with driver slot (15) position, rectangular inner groovy that the link slot (14) and driver slot (15) surround and The end shape of connecting key (7) is adapted and to be rectangular, and the interior bottom of the link slot (14) and driver slot (15) is fixedly mounted Have permanent magnets (16), the mounting disc (4) is located at the side connect in electricity cover (3) and is fixedly installed with collector ring (17), described to connect electricity The upper and lower ends of cover (3) inner wall are respectively equipped with brush (18), and the end of brush (18) is contacted with the outer wall of collector ring (17), institute The energization for stating electromagnet (6) is electrically connected in the terminal box of motor body (1) by collector ring (17) and brush (18), the company The other side of reel (12) is opened up there are three connecting shaft hole (19), three connecting shaft holes (19) and three link slots (14) Location dislocation arrangement.

2. a kind of drive motor in oil field according to claim 1, it is characterised in that: the connecting key (7) is by nothing The square-section bar that magnetic carbon steel is cast, the connecting key (7) protrudes into the end in link slot (14) equipped with permanent magnet, and this is forever The magnetic pole of magnet is opposite with the magnetic pole of permanent magnets (16) opposite end.

3. a kind of drive motor in oil field according to claim 1, it is characterised in that: baffle II (10) side Connecting key (7) length be exactly link slot (14) depth remove permanent magnets (16) thickness value.

4. a kind of drive motor in oil field according to claim 1, it is characterised in that: the baffle II (10) is close to When coupling disc (12) side, the elastic pulling force size that tension spring (11) Tensile generates is between connecting key (7) end and permanent magnetism Between the magnetic field force size that magnetic phase suction size and electromagnet (6) energization of block (16) generate and magnetic reprimand plate (9) is repelled each other.

5. a kind of drive motor in oil field according to claim 1, it is characterised in that: the coupling disc (12) is located at Link slot (14) side front annular is evenly equipped with several magnetic resistance blocks (20), and the front of each magnetic resistance block (20) and permanent magnets (16) magnetic pole of opposite connecting key (7) side is identical, the magnetism of the magnetic resistance block (20) and the generation of connecting key (7) end permanent magnet Adsorption capacity is less than magnetic adsorptive power when connecting key (7) end permanent magnet leaves permanent magnets (16) between the two.

6. a kind of drive motor in oil field according to claim 1, it is characterised in that: the coupling disc (12) it is interior It wall circular and is uniformly embedded with multiple groups roller bearing (21), and the outer wall of multiple groups roller bearing (21) and the outer wall of drive disk (13) occur Contact.

7. a kind of drive motor in oil field according to claim 1, it is characterised in that: the electromagnet (6) and electricity The delay lagged compared with electromagnet (6) so that motor body (1) internal stator is powered is electrically connected between machine ontology (1) internal stator Relay.