CN110568355B - Multiunit that small-size motor used drags laboratory bench - Google Patents

Multiunit that small-size motor used drags laboratory bench Download PDF

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Publication number
CN110568355B
CN110568355B CN201910749984.6A CN201910749984A CN110568355B CN 110568355 B CN110568355 B CN 110568355B CN 201910749984 A CN201910749984 A CN 201910749984A CN 110568355 B CN110568355 B CN 110568355B
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group
motor
base
direct current
tachogenerator
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CN110568355A (en
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兰杰
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Shandong Kaiou Motor Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34Testing dynamo-electric machines

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

The invention provides a multi-group dragging experiment table for a small motor, which comprises a base, a positioning pin column and a pressing plate, wherein the base is provided with a plurality of groups of rollers; the device is provided with three measurement installation groups; the bottom of each measuring and mounting group is provided with a group of bases; the right side of the top of the base is slidably connected with a group of direct current compound excitation motors; the left side of the top of the base is connected with a group of tachogenerator in a sliding manner; the left side of the direct current compound excitation motor is hinged with a group of the pressing connecting rods; the middle parts of the rightmost group of the pressing support connecting rods are hinged; the speed measuring generator rotating shaft is in plug-in connection with the motor rotating shaft to be measured and the direct current compound excitation motor rotating shaft. The device simple structure convenient to use can realize fast grafting and the quick installation of the motor that awaits measuring of tachogenerator, direct current compound excitation motor and the motor that awaits measuring fast, and the installation rate is fast, and the installation is effectual, easy operation.

Description

Multiunit that small-size motor used drags laboratory bench
Technical Field
The invention belongs to the technical field of motor test devices, and particularly relates to a multi-group dragging experiment table for a small motor.
Background
In the motor production, motor dragging performance experiments are often required to be carried out on the motor so as to measure the dragging performance of the motor, and a motor dragging experiment workbench is generally required to be used in the motor dragging performance experiments.
For example, application No.: CN201720279117.7 the invention relates to a motor and a dragging experimental device. This motor and drag experimental apparatus includes: battery case, electric capacity I, three-terminal steady voltage integrated chip, electric capacity II, the minimum system of singlechip, speed sensor, the little motor of direct current, speed governing circuit device, DC supply, speed sensor includes: the LED speed display screen comprises an LED speed display screen and a correlation photoelectric sensor, wherein the connection sequence sequentially comprises a battery box, a capacitor I, a three-terminal voltage stabilization integrated chip, a capacitor II, a single chip microcomputer minimum system, a speed measuring device, a small direct current motor, a speed regulating circuit device and direct current power supply. The motor and the dragging experimental equipment provided by the invention realize the speed regulation experiment of the direct current motor, take a small system development mode as a core, and are characterized by economy and safety. The student can weld the equipment by oneself and program the debugging, has both tempered the student and has formed usable experimental apparatus.
Based on the above, current motor drags experimental apparatus in use and need install the motor that awaits measuring on the base, and the motor that will await measuring simultaneously passes through the shaft coupling with direct current compound excitation motor, tachogenerator and is connected, and the process installation that is using is troublesome, seriously influences experimental efficiency.
Disclosure of Invention
In order to solve the technical problems, the invention provides a multi-group dragging experiment table for a small motor, which aims to solve the problems that in the existing motor dragging experiment device, a motor to be tested needs to be installed on a base in use, and meanwhile, the motor to be tested is connected with a direct current compound excitation motor and a tachogenerator through couplers, so that the installation is troublesome in the use process, and the experiment efficiency is seriously influenced.
The invention relates to a purpose and an effect of a plurality of groups of dragging experiment tables used by a small motor, which are achieved by the following specific technical means:
a multi-group dragging experiment table for a small motor comprises a base, a positioning pin column, a dovetail slide rail, a tachogenerator, a connecting clamp, a key groove, a chamfer, a dovetail groove, a motor to be detected, a flat key, a round head, a direct-current compound excitation motor, an operating handle, a sliding connecting rod, a pressing support connecting rod, a pressing connecting rod and a pressing plate; the experiment table is provided with three measurement installation groups; the bottom of each measuring and mounting group is provided with a group of bases; the right side of the top of the base is slidably connected with a group of direct current compound excitation motors; the left side of the top of the base is connected with a group of tachogenerator in a sliding manner; the middle of the top of the base is tightly connected with a group of motors to be tested; the left side and the right side of the middle part of the front end surface and the rear end surface of the top of the base are hinged with a group of compression plates through two groups of compression support connecting rods; the motor to be tested is tightly pressed on the upper end surface of the base by the pressing plate; the left side and the right side of the base are hinged with a group of operating handles; the group of the operating handles on the left side and the tachogenerator are hinged together to form a group of the sliding connecting rods; the right side of the tachogenerator is hinged with a group of the compaction connecting rods; the compression connecting rods are hinged by the middle parts of the group of compression supporting connecting rods at the leftmost side; the group of the operating handles on the right side and the direct-current compound excitation motor are hinged together to form a group of the sliding connecting rods; the left side of the direct current compound excitation motor is hinged with a group of the pressing connecting rods; the compression connecting rods are hinged with the middle parts of the rightmost compression supporting connecting rods; the speed measuring generator rotating shaft is in plug-in connection with the motor rotating shaft to be measured and the direct current compound excitation motor rotating shaft.
Furthermore, four groups of positioning pin columns are arranged on the upper end face of the middle part of the base, the length of each positioning pin column is smaller than the thickness of the motor mounting seat to be tested, and the positioning pin columns are positioned and mounted with the mounting holes of the motor mounting seat to be tested;
furthermore, a group of dovetail slide rails is arranged on the left side and the right side of the top of the base, a group of dovetail grooves is arranged on the top of each of the tachogenerator and the direct current compound excitation motor, and the tachogenerator and the direct current compound excitation motor are respectively connected with the base in a sliding manner through the dovetail slide rails on the left side and the right side;
furthermore, a group of connecting chucks are coaxially and fixedly connected to the rotating shafts of the tachogenerator and the direct-current compound excitation motor, a plurality of groups of key grooves are uniformly distributed in the connecting chucks, and a group of flat keys are arranged on the left rotating shaft and the right rotating shaft of the motor to be tested;
furthermore, the outside terminal surface of keyway all is provided with a set of chamfer, and the flat key is the ordinary key of button head, the outside of flat key is the button head.
Furthermore, two groups of the pressing support connecting rods hinged with the same group of the pressing plates are arranged in parallel, and the pressing plates, the pressing support connecting rods and the base form a double-rocker mechanism together;
further, the base, the pressing support connecting rod, the pressing connecting rod and the tachogenerator together form a slider-crank mechanism, and the base, the pressing support connecting rod, the pressing connecting rod and the direct-current compound excitation motor together form a slider-crank mechanism;
further, the base, the tachogenerator, operating handle, the slider-crank structure is constituteed jointly to the slip connecting rod, the base, the direct current compound excitation motor, operating handle, the slider-crank structure is constituteed jointly to the slip connecting rod, and when the tachogenerator with the direct current compound excitation motor is in the most inboard, operating handle with the slip connecting rod is in the level collinear state, and slider-crank mechanism is in the dead point state this moment.
Compared with the prior art, the invention has the following beneficial effects:
the device can simultaneously carry out three groups of motor dragging experiments by adopting three groups of structures, and the other two groups can be installed when one group carries out dragging experiments, so that the efficiency of the dragging experiments is greatly improved; meanwhile, the speed measuring generator and the direct current compound excitation motor can be connected with the motor to be tested in a plug-in mode through the crank sliding block mechanism and the double-rocker mechanism, the motor to be tested can be pressed tightly, meanwhile, the dead point characteristic of the crank sliding block mechanism is utilized to effectively prevent the speed measuring generator and the direct current compound excitation motor from sliding backwards, the use is simple, the operation is convenient, the installation efficiency is greatly improved, and the experiment efficiency is improved; meanwhile, the connecting chuck is adopted, and the uniformly distributed key grooves and chamfers are arranged on the connecting chuck, so that the rapid insertion of the tachogenerator, the direct-current compound excitation motor and the motor to be tested is realized by matching the round head of the flat key and the inclined surface of the chamfer in use, the installation time of the coupler is greatly saved, the installation efficiency is greatly improved, and the experimental efficiency is improved; the device simple structure convenient to use can realize fast grafting and the quick installation of the motor that awaits measuring of tachogenerator, direct current compound excitation motor and the motor that awaits measuring fast, and the installation rate is fast, and the installation is effectual, easy operation.
Drawings
FIG. 1 is a schematic axial side view of the present invention.
FIG. 2 is a schematic diagram of a single set of measurement mounting set shaft side configurations of the present invention.
Fig. 3 is a schematic view of the tachogenerator drive shaft side structure of the present invention.
Fig. 4 is a schematic view of the tachogenerator shaft side structure of the present invention.
Fig. 5 is a schematic diagram of the shaft side structure of the to-be-tested motor of the present invention.
Fig. 6 is a schematic axial side structure of the dc compound motor of the present invention.
Fig. 7 is a schematic view of the present invention at a portion enlarged in fig. 6.
Fig. 8 is a schematic view of the base axial side structure of the present invention.
Fig. 9 is an isometric cross-sectional structural view of the connection clip of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a base; 101. positioning the pin column; 102. a dovetail slide rail; 2. a tachogenerator; 201. connecting a chuck; 202. a keyway; 203. chamfering; 204. a dovetail groove; 3. a motor to be tested; 301. a flat bond; 302. a round head; 4. a direct current compound motor; 5. an operating handle; 6. a sliding connecting rod; 7. a compression support link; 8. a compression connecting rod; 9. and a pressing plate.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in figures 1 to 9:
the invention provides a multi-group dragging experiment table for a small motor, which comprises: the device comprises a base 1, a positioning pin column 101, a dovetail slide rail 102, a tachogenerator 2, a connecting clamp 201, a key groove 202, a chamfer 203, a dovetail groove 204, a motor to be tested 3, a flat key 301, a round head 302, a direct current compound excitation motor 4, an operating handle 5, a sliding connecting rod 6, a pressing support connecting rod 7, a pressing connecting rod 8 and a pressing plate 9; the experiment table is provided with three measurement installation groups; the bottom of each measuring and mounting group is provided with a group of bases 1; the right side of the top of the base 1 is connected with a group of direct current compound excitation motors 4 in a sliding manner; the left side of the top of the base 1 is connected with a group of tachogenerator 2 in a sliding manner; the middle of the top of the base 1 is tightly connected with a group of motors to be tested 3; the left side and the right side of the middle part of the front end surface and the rear end surface of the top of the base 1 are hinged with a group of compression plates 9 through two groups of compression support connecting rods 7; the motor 3 to be tested is tightly pressed on the upper end surface of the base 1 by the pressing plate 9; the left and the right of the base 1 are hinged with a group of operating handles 5; the left group of operating handles 5 and the tachogenerator 2 are hinged with a group of sliding connecting rods 6; the right side of the tachogenerator 2 is hinged with a group of compression connecting rods 8; the compression connecting rods 8 are hinged by the middle parts of the group of compression supporting connecting rods 7 at the leftmost side; the group of operating handles 5 on the right side and the direct-current compound excitation motor 4 are hinged together to form a group of sliding connecting rods 6; the left side of the direct current compound excitation motor 4 is hinged with a group of compression connecting rods 8; the compression connecting rods 8 are hinged by the middle parts of the rightmost compression supporting connecting rods 7; the rotating shaft of the tachogenerator 2 is connected with the rotating shaft of the motor to be tested 3, and the rotating shaft of the motor to be tested 3 is connected with the rotating shaft of the direct current compound excitation motor 4 in a plugging manner.
Four groups of positioning pins 101 are arranged on the upper end face of the middle of the base 1, the length of each positioning pin 101 is smaller than the thickness of the mounting seat of the motor 3 to be tested, the positioning pins 101 are installed in a positioning mode with the mounting holes of the mounting seat of the motor 3 to be tested, and the motor 3 to be tested is positioned in use.
The left side and the right side of the top of the base 1 are provided with a group of dovetail slide rails 102, the top of the tachogenerator 2 and the top of the direct current compound excitation motor 4 are provided with a group of dovetail grooves 204, and the tachogenerator 2 and the direct current compound excitation motor 4 are connected with the base 1 in a sliding mode through the dovetail slide rails 102 on the left side and the right side respectively to guide the tachogenerator 2 and the direct current compound excitation motor 4 well.
The rotating shafts of the speed measuring generator 2 and the direct-current compound excitation motor 4 are coaxially and fixedly connected with a group of connecting clamping heads 201, a plurality of groups of key grooves 202 are uniformly distributed in the connecting clamping heads 201, a group of flat keys 301 are arranged on the left rotating shaft and the right rotating shaft of the motor 3 to be tested, and the speed measuring generator 2, the direct-current compound excitation motor 4 and the motor 3 to be tested are in transmission connection through the splicing connection of the flat keys 301 and the key grooves 202 in use.
Wherein, the outside terminal surface of keyway 202 all is provided with a set of chamfer 203, and flat key 301 is the ordinary key of button head, and the outside of flat key 301 is button head 302, and in use leads with chamfer 203 through the cooperation of button head 302, makes things convenient for flat key 301 to insert keyway 202, the convenient connection.
The two groups of pressing and supporting connecting rods 7 hinged with the same group of pressing plates 9 are arranged in parallel, the pressing plates 9, the pressing and supporting connecting rods 7 and the base 1 jointly form a double-rocker mechanism, when in use, the pressing plates 9 swing downwards to press the motor 3 to be tested when the pressing and supporting connecting rods 7 swing, and the pressing plates 9 are kept in a horizontal state while pressing.
The base 1, the pressing support connecting rod 7, the pressing connecting rod 8 and the tachogenerator 2 jointly form a slider-crank mechanism, the base 1, the pressing support connecting rod 7, the pressing connecting rod 8 and the direct-current compound excitation motor 4 jointly form the slider-crank mechanism, and the pressing support connecting rod 7 is driven to swing left and right through the slider-crank mechanism when the direct-current compound excitation motor 4 and the tachogenerator 2 slide left and right.
The base 1, the tachogenerator 2, the operating handle 5, the sliding connecting rod 6 jointly constitute a slider-crank structure, the base 1, the direct current compound excitation motor 4, the operating handle 5, the sliding connecting rod 6 jointly constitute a slider-crank structure, and when the tachogenerator 2 and the direct current compound excitation motor 4 are at the innermost side, the operating handle 5 and the sliding connecting rod 6 are in a horizontal collinear state, the slider-crank mechanism is in a dead point state at the moment, in use, the operating handle 5 swings to drive the tachogenerator 2 and the direct current compound excitation motor 4 to slide left and right through the slider-crank mechanism, so that the tachogenerator 2, the direct current compound excitation motor 4 and the motor 3 to be tested are plugged, the motor 3 to be tested is tightly pressed, and the tachogenerator 2 and the direct current compound excitation motor 4 are effectively placed by utilizing the dead point characteristic of the slider-crank mechanism and slide back.
When in use: when the device is installed, a motor 3 to be tested is placed on a base 1, the positioning is carried out through a positioning pin 101, an operating handle 5 on the left side is swung, the operating handle 5 forms a crank block structure together through the base 1, a tachogenerator 2, the operating handle 5 and a sliding connecting rod 6 to drive the tachogenerator 2 to slide towards the right side, the crank block structure formed by the base 1, the tachogenerator 2, the operating handle 5 and the sliding connecting rod 6 drives a compression support connecting rod 7 to swing towards the left side while the tachogenerator 2 slides towards the right side, and the compression support connecting rod 7 drives the compression plate 9 to keep horizontal state to swing downwards towards the right through a double-rocker mechanism formed by the compression plate 9, the compression support connecting rod 7 and the base 1 to compress the motor 3 to be tested; the connecting clamp 201 is connected with the rotating shaft of the motor 3 to be tested in an inserting way when the tachogenerator 2 slides towards the left side; the operating handle 5 on the right side is turned over, the direct-current compound excitation motor 4 slides to the left side through the same principle, and meanwhile, the rotating shaft of the direct-current compound excitation motor 4 is connected with the rotating shaft of the motor 3 to be tested in an inserting mode.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (4)

1. The utility model provides a multiunit that small-size motor used drags laboratory bench which characterized in that: this multiunit that small-size motor used drags laboratory bench includes: the device comprises a base (1), a positioning pin column (101), a dovetail slide rail (102), a speed measuring generator (2), a connecting clamp head (201), a key groove (202), a chamfer (203), a dovetail groove (204), a motor to be tested (3), a flat key (301), a round head (302), a direct current compound excitation motor (4), an operating handle (5), a sliding connecting rod (6), a pressing support connecting rod (7), a pressing connecting rod (8) and a pressing plate (9); the experiment table is provided with three measurement installation groups; the bottom of each measuring and mounting group is provided with a group of bases (1); the right side of the top of the base (1) is connected with a group of direct current compound excitation motors (4) in a sliding mode; the left side of the top of the base (1) is connected with a group of tachogenerator (2) in a sliding manner; the middle of the top of the base (1) is tightly connected with a group of motors (3) to be tested; the left side and the right side of the middle part of the front end surface and the rear end surface of the top of the base (1) are hinged with a group of compression plates (9) through two groups of compression support connecting rods (7); the pressing plate (9) presses the motor (3) to be tested on the upper end surface of the base (1); the left side and the right side of the base (1) are hinged with a group of operating handles (5); the left group of operating handles (5) and the tachogenerator (2) are jointly hinged with a group of sliding connecting rods (6); the right side of the tachogenerator (2) is hinged with a group of the pressing connecting rods (8); the compression connecting rods (8) are hinged by the middle parts of the group of compression supporting connecting rods (7) at the leftmost side; the group of the operating handles (5) on the right side and the direct-current compound excitation motor (4) are jointly hinged with a group of the sliding connecting rods (6); the left side of the direct current compound excitation motor (4) is hinged with a group of compression connecting rods (8); the compression connecting rods (8) are hinged by the middle parts of the rightmost compression supporting connecting rods (7); the rotating shaft of the tachogenerator (2) is in plug-in connection with the rotating shaft of the motor (3) to be tested, and the rotating shaft of the motor (3) to be tested is in plug-in connection with the rotating shaft of the direct current compound excitation motor (4);
four groups of positioning pins (101) are arranged on the upper end face of the middle part of the base (1), the length of each positioning pin (101) is smaller than the thickness of the mounting seat of the motor (3) to be tested, and the positioning pins (101) are installed in a positioning mode with the mounting holes of the mounting seat of the motor (3) to be tested;
the left side and the right side of the top of the base (1) are respectively provided with a group of dovetail slide rails (102), the tops of the speed measuring generator (2) and the direct current compound excitation motor (4) are respectively provided with a group of dovetail grooves (204), and the speed measuring generator (2) and the direct current compound excitation motor (4) are respectively connected with the base (1) in a sliding mode through the dovetail slide rails (102) on the left side and the right side;
a group of connecting chucks (201) are coaxially and fixedly connected to rotating shafts of the tachogenerator (2) and the direct-current compound excitation motor (4), a plurality of groups of key grooves (202) are uniformly distributed in the connecting chucks (201), and a group of flat keys (301) are arranged on left and right rotating shafts of the motor (3) to be tested;
the outside terminal surface of keyway (202) all is provided with a set of chamfer (203), flat key (301) are ordinary key of button head, the outside of flat key (301) is button head (302).
2. The multi-group dragging experiment table for the small motor according to claim 1, characterized in that: the two groups of pressing and supporting connecting rods (7) hinged with the same group of pressing plates (9) are installed in parallel, and the pressing plates (9), the pressing and supporting connecting rods (7) and the base (1) jointly form a double-rocker mechanism.
3. The multi-group dragging experiment table for the small motor according to claim 1, characterized in that: the base (1), compress tightly supporting link (7), compress tightly connecting rod (8), tachogenerator (2) constitutes slider-crank mechanism jointly, base (1), compress tightly supporting link (7), compress tightly connecting rod (8), direct current compound excitation motor (4) constitutes slider-crank mechanism jointly.
4. The multi-group dragging experiment table for the small motor according to claim 1, characterized in that: base (1) tachogenerator (2) operating handle (5) slip connecting rod (6) constitute slider-crank structure jointly, base (1) direct current compound excitation motor (4) operating handle (5) slip connecting rod (6) constitute slider-crank structure jointly, and work as tachogenerator (2) with direct current compound excitation motor (4) are when the innermost side, operating handle (5) with slip connecting rod (6) are in the level collinear state, and slider-crank mechanism is in the dead point state this moment.
CN201910749984.6A 2019-08-14 2019-08-14 Multiunit that small-size motor used drags laboratory bench Active CN110568355B (en)

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CN110568355B true CN110568355B (en) 2021-12-31

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Publication number Priority date Publication date Assignee Title
CN116404816B (en) * 2023-04-12 2024-03-26 中山南丰电机制造有限公司 Motor speed measuring feedback device

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CN201156347Y (en) * 2008-01-25 2008-11-26 兰州职业技术学院 Electric driving experimental bench having mechanical driving apparatus
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CN201918102U (en) * 2010-11-02 2011-08-03 山东星科智能科技有限公司 Digital dragging experiment bench for alternating current and direct current motors
CN103499791A (en) * 2013-09-25 2014-01-08 浙江联宜电机股份有限公司 Comprehensive test platform of motor
EP2539723B1 (en) * 2010-02-24 2015-04-01 Siemens Aktiengesellschaft Electric arc discharge evaluation method, and associated test stand
CN104833506A (en) * 2015-04-16 2015-08-12 吉林大学 Machine tool electrical spindle reliability testing stand centering adjusting device
CN207832974U (en) * 2018-02-09 2018-09-07 南京越博电驱动系统有限公司 A kind of motor for pure electric automobile is to dragging testboard bay and test system
CN208044942U (en) * 2018-03-09 2018-11-02 四川农业大学 A kind of Combined motor laboratory apparatus of miniaturization

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2727691Y (en) * 2004-08-14 2005-09-21 重庆宗申技术开发研究有限公司 Integrated crankshaft detecting device
CN201156347Y (en) * 2008-01-25 2008-11-26 兰州职业技术学院 Electric driving experimental bench having mechanical driving apparatus
CN201532445U (en) * 2009-11-17 2010-07-21 沈阳华人风电科技有限公司 Simulation experimental bench for performance of permanent-magnet generator
EP2539723B1 (en) * 2010-02-24 2015-04-01 Siemens Aktiengesellschaft Electric arc discharge evaluation method, and associated test stand
CN201918102U (en) * 2010-11-02 2011-08-03 山东星科智能科技有限公司 Digital dragging experiment bench for alternating current and direct current motors
CN103499791A (en) * 2013-09-25 2014-01-08 浙江联宜电机股份有限公司 Comprehensive test platform of motor
CN104833506A (en) * 2015-04-16 2015-08-12 吉林大学 Machine tool electrical spindle reliability testing stand centering adjusting device
CN207832974U (en) * 2018-02-09 2018-09-07 南京越博电驱动系统有限公司 A kind of motor for pure electric automobile is to dragging testboard bay and test system
CN208044942U (en) * 2018-03-09 2018-11-02 四川农业大学 A kind of Combined motor laboratory apparatus of miniaturization

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Denomination of invention: A multi group drag experimental platform for small motors

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