CN218099508U

CN218099508U - Power transmission device

Info

Publication number: CN218099508U
Application number: CN202222074967.7U
Authority: CN
Inventors: 邱意想; 刘洪彬; 蓝朗明
Original assignee: Guangdong Minzhuo Mechanical And Electrical Co ltd
Current assignee: Guangdong Minzhuo Mechanical And Electrical Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-12-20
Anticipated expiration: 2032-08-05

Abstract

The utility model relates to a power transmission device, which comprises a first fixed seat, a second fixed seat, a device to be tested, a transmission assembly and a programmable logic controller, wherein the device to be tested is placed on the first fixed seat and is used for generating a driving moment; the transmission assembly is arranged between the first fixing seat and the second fixing seat, is connected with the equipment to be tested and is used for transmitting the driving torque of the equipment to be tested; and the programmable logic controller is connected with the transmission assembly and acquires the output parameters of the equipment to be tested. The transmission component transmits the torque output by the equipment to be tested to the programmable logic controller, the programmable logic controller reads a current or voltage signal output by the static torque sensor through the analog quantity module and converts the current or voltage signal into a corresponding output torque value through the programmable logic controller, and the value is compared with a set value to judge whether the output torque of the equipment to be tested is qualified or not, so that the precision and the accuracy of performance detection of the equipment to be tested are effectively improved, the production quality of the equipment to be tested is ensured, and the method has the characteristics of rapidness, accuracy, reliability and the like.

Description

Power transmission device

Technical Field

The utility model relates to a power transmission device.

Background

With the pursuit of people on living quality and the rapid development of household appliance manufacturing industry in China, foshan Shunde currently has the largest and most complete household appliance manufacturing industry cluster in global scale, and the output value of the area can reach more than 1000 million yuan currently. Meanwhile, with the development of national intelligent manufacturing, the production efficiency is continuously improved, and the production and manufacturing automation is continuously promoted to play an important role for companies in the manufacturing industry. The micro synchronous motor is used as a key power component in a plurality of household electrical appliances, and is widely applied to ovens, microwave ovens, air fryer, automatic door lock mechanisms, fans and the like. The micro synchronous motor generates output torque after being electrified to drive the household appliance to work, and if the output torque of the motor does not reach the design standard, the quality of the household appliance is in a problem or even the household appliance cannot work. Therefore, the output torque detection of the micro synchronous motor plays an important role in the motor finished product inspection.

In the prior art, a common micro synchronous motor output torque detection device adopts pointer type torque batch and manual operation to detect the motor output torque, when the pointer type torque batch is adopted for detection, a torque batch handle is usually manually held, a motor is electrified and rotated, a torque batch test rod rotates under the action of the motor torque, a dial pointer is driven to rotate, manual reading is needed when the test is completed, and when the dial pointer reaches a set torque, the motor output torque meets the requirement. Above mode check-out time is longer, and is inefficient, receives the human factor to disturb simultaneously, if under mass production's the condition, can take place to miss to examine the false retrieval problem, is unfavorable for producing line production efficiency simultaneously and improves production quality.

Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a quick, accurate and reliable, improve the power transmission device of the precision and the accuracy that the equipment performance that awaits measuring detected to overcome the weak point among the prior art.

A power transmission device designed according to the purpose comprises a first fixing seat and a second fixing seat, and is characterized in that: further comprising:

the device to be tested is placed on the first fixed seat and used for generating driving torque;

the transmission assembly is arranged between the first fixing seat and the second fixing seat, is connected with the equipment to be tested, and is used for transmitting the driving torque of the equipment to be tested;

and the programmable logic controller is connected with the transmission assembly and acquires the output parameters of the equipment to be tested.

The transmission assembly comprises a coupler, a first shaft sleeve, a second shaft sleeve and a transmission; the transmission device is sleeved in the first shaft sleeve, a mounting groove matched and connected with an output shaft on the equipment to be tested is formed in one end of the transmission device, one end of the coupler is matched and connected with the other end of the transmission device, and the other end of the coupler is rotatably connected with the second shaft sleeve.

The transmission assembly further comprises an elastic reset piece, the elastic reset piece is sleeved on one end of the coupler and abutted against the driver to reset the driver, a guide rod is arranged at the top end of the coupler, a guide groove matched with the guide rod is circumferentially arranged on the driver, and the guide rod is arranged on the guide groove; when the output shaft on the device to be tested is pressed against the driver, the driver pushes the elastic reset piece to compress, and the guide rod vertically slides along the guide groove.

When the output shaft on the equipment to be tested is matched and connected with the mounting groove on the driver, the driver is reset under the action of the elastic reset piece, and the output shaft on the equipment to be tested is in clearance fit with the driver.

The transmission assembly further comprises a static torque sensor and a fixed shaft sleeve, one end of the static torque sensor is rotatably connected with the second shaft sleeve, and the other end of the static torque sensor is rotatably connected with the fixed shaft sleeve.

The static torque sensor is provided with a key groove, the second shaft sleeve is fixedly connected with the key groove in the static torque sensor through a fastener, and the second shaft sleeve drives the static torque sensor to rotate when rotating.

And a bearing seat are arranged on the second fixed seat, the bearing is arranged in the bearing seat, and the bearing is matched and connected with one end of the fixed shaft sleeve.

The central axes of the coupler, the first shaft sleeve, the second shaft sleeve and the driver are collinear with the central axes of the static torque sensor, the fixed shaft sleeve, the bearing and the bearing seat.

The limiting component is arranged on the second fixing seat and comprises a first positioning seat and a second positioning seat which are spaced from each other, a first metal rod is arranged on the first positioning seat, a second metal rod is arranged on the second positioning seat, and a third metal rod which is in contact fit with the first metal rod and the second metal rod is circumferentially arranged on the fixing shaft sleeve.

The first metal rod and the second metal rod are respectively in communication connection with the programmable logic controller, the static torque sensor is electrically connected with the programmable logic controller, and the static torque sensor drives the fixed shaft sleeve to rotate when rotating so as to enable the third metal rod to be in contact with the first metal rod or the second metal rod.

The utility model discloses a power transmission device, the equipment that awaits measuring, drive assembly and programmable logic controller, the output shaft and the drive assembly of the equipment that awaits measuring rotate to be connected, drive assembly is connected with programmable logic controller, the moment transmission programmable logic controller of drive assembly output with the equipment that awaits measuring, programmable logic controller reads behind the electric current or the voltage signal of static torque sensor output through the analog quantity module, convert into corresponding output torque value through programmable logic controller, this value is qualified or not through judging this equipment that awaits measuring output torque with the setting value comparison, effectively improve the precision and the accuracy of the equipment performance testing that awaits measuring, guarantee the production quality of the equipment that awaits measuring, and is quick, characteristics such as accurate and reliable.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

Fig. 1 is a schematic view of an assembly structure of a power transmission device according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a power transmission device according to an embodiment of the present invention.

Fig. 3 is a rear view of the power transmission device according to an embodiment of the present invention.

Fig. 4 is a schematic view of an assembly structure of the device under test and the transmission assembly according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view of a device under test and a transmission assembly according to an embodiment of the present invention.

Fig. 6 is an exploded schematic view of a device under test and a transmission assembly according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of an actuator according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 7 is:

1-a first fixed seat, 2-a second fixed seat, 3-equipment to be tested, 4-a transmission component, 401-a coupler, 4011-a guide rod, 402-a first shaft sleeve, 403-a second shaft sleeve, 404-a driver, 4041-a mounting groove, 4042-a guide groove, 405-an elastic reset piece, 406-a static torque sensor, 4061-a key groove, 407-a fixed shaft sleeve, 4071-a third metal rod, 5-a programmable logic controller, 6-a bearing, 7-a bearing seat, 8-a limiting component, 801-a first positioning seat, 8011-a first metal rod, 802-a second positioning seat, 8021-a second metal rod and 9-a nut.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-4, in one embodiment, a power transmission apparatus is provided, which includes a first fixed base 1, a second fixed base 2, a device under test 3, a transmission assembly 4, and a programmable logic controller 5, where the device under test 3 is placed on the first fixed base 1 and is used to generate a driving torque; the transmission assembly 4 is arranged between the first fixing seat 1 and the second fixing seat 2, is connected with the equipment to be tested 3 and is used for transmitting the driving torque of the equipment to be tested 3; the programmable logic controller 5 is connected with the transmission component 4 and obtains the output parameters of the device to be tested 3.

It should be noted that the device under test 3 includes, but is not limited to, various types of motors under test, such as a micro synchronous motor, a dc motor, an electromagnetic motor, a stepping motor, and the like.

Referring to fig. 5 and 6, the transmission assembly 4 includes a coupling 401, a first sleeve 402, a second sleeve 403, and a transmission 404; the driver 404 is sleeved in the first shaft sleeve 402, one end of the driver 404 is provided with a mounting groove 4041 which is matched and connected with the output shaft 301 on the device to be tested 3, one end of the coupler 401 is matched and connected with the other end of the driver 404, and the other end of the coupler 401 is rotatably connected with the second shaft sleeve 403.

Referring to fig. 5 and 6, the transmission assembly 4 further includes an elastic reset member 405, the elastic reset member 405 is sleeved on one end of the coupler 401 and abuts against the driver 404 for resetting the driver 404, a guide rod 4011 is arranged at the top end of the coupler 401, a guide groove 4042 matched with the guide rod 4011 is circumferentially arranged on the driver 404, and the guide rod 4011 is arranged on the guide groove 4042; when the output shaft 301 of the device under test 3 presses the driver 404, the driver 404 pushes the elastic restoring member 405 to compress, and the guide rod 4011 vertically slides along the guide groove 4042.

When the output shaft 301 of the device to be tested 3 is matched and connected with the mounting groove 4041 of the transmission 404, the transmission 404 is reset under the action of the elastic reset piece 405, and the output shaft 301 of the device to be tested 3 is in clearance fit with the transmission 404.

Specifically, during detection, because the initial rotation angles of the output shafts 301 of the micro synchronous motors for detection may be different, the micro synchronous motor mounted on the first fixed seat 1 presses against the driver 404 under the action of the output shafts 301, the driver 404 pushes the elastic reset piece 405 to compress, and at this time, the coupler 401 vertically slides upwards along the guide groove 4042 on the driver 404 through the guide rod 4011; after the programmable logic controller 5 controls the micro synchronous motor to be electrified, the output shaft 301 on the micro synchronous motor rotates, and when the output shaft 301 on the micro synchronous motor rotates to a position matched with the mounting groove 4041 on the driver 404, the driver 404 resets under the action of the elastic resetting piece 405, and the coupler 401 vertically and downwards slides along the guide groove 4042 on the driver 404 through the guide rod 4011.

Referring to fig. 5 and 6, the transmission assembly 4 further includes a static torque sensor 406 and a fixed bushing 407, wherein one end of the static torque sensor 406 is rotatably connected to the second bushing 403, and the other end of the static torque sensor 406 is rotatably connected to the fixed bushing 407.

The static torque sensor 406 is provided with a key groove 4061, the second bushing 403 is fastened and connected with the key groove 4061 on the static torque sensor 406 through a fastener, and the second bushing 403 rotates to drive the static torque sensor 406 to rotate.

It should be noted that the fastener is a screw.

And a bearing 6 and a bearing seat 7 are arranged on the second fixed seat 2, the bearing 6 is arranged in the bearing seat 7, and the bearing 6 is matched and connected with one end of the fixed shaft sleeve 407.

Specifically, a bearing 6 and a bearing seat 7 are adopted for reducing friction torque generated by rotation so as to reduce the influence on a measured value, and the bearing 6 is a deep groove ball bearing; the fixing shaft sleeve 407 is fastened to the second fixing base 2 by a nut 9.

The central axes of the shaft coupling 401, the first shaft sleeve 402, the second shaft sleeve 403 and the driver 404 are collinear with the central axes of the static torque sensor 406, the fixed shaft sleeve 407, the bearing 6 and the bearing seat 7, so that the precision and accuracy of detecting the micro synchronous motor are improved.

Be equipped with spacing subassembly 8 on the second fixing base 2, spacing subassembly 8 includes first locating seat 801 and second locating seat 802 of mutual spaced, is equipped with first metal rod 8011 on the first locating seat 801, is equipped with second metal rod 8021 on the second locating seat 802, is equipped with the third metal rod 4071 with first metal rod 8011 and second metal rod 8021 contact complex on the fixed axle sleeve 407 circumference.

The first metal bar 8011 and the second metal bar 8021 are respectively in communication connection with the programmable logic controller 5, the static torque sensor 406 is electrically connected with the programmable logic controller 5, and the static torque sensor 406 rotates to drive the fixing shaft sleeve 407 to rotate, so that the third metal bar 4071 contacts with the first metal bar 8011 or the second metal bar 8021.

Specifically, the static torque sensor 406 rotates under the action of the output torque of the micro synchronous motor, after rotating to the position-limiting position of the position-limiting component 8, the static torque sensor is connected with the first metal rod 8011 or the second metal rod 8021 through the third metal rod 4071 fixed on the fixed shaft sleeve 407, and then the signals are sent to the programmable logic controller 5 as input signals, the programmable logic controller 5 reads current or voltage signals output by the static torque sensor 406 through the analog quantity module and then converts the signals into corresponding output torque values through the programmable logic controller 5, and the values are compared with set values to judge whether the output torque of the micro synchronous motor is qualified or not

The foregoing is the preferred embodiment of the present invention, showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. A power transmission device, includes first fixing base (1) and second fixing base (2), its characterized in that: further comprising:

the device to be tested (3) is placed on the first fixed seat (1) and used for generating driving torque;

the transmission assembly (4) is arranged between the first fixed seat (1) and the second fixed seat (2), is connected with the equipment to be tested (3), and is used for transmitting the driving torque of the equipment to be tested (3);

and the programmable logic controller (5) is connected with the transmission assembly (4) and acquires the output parameters of the equipment to be tested (3).

2. The power transmission device according to claim 1, characterized in that: the transmission assembly (4) comprises a coupling (401), a first shaft sleeve (402), a second shaft sleeve (403) and a transmission (404); the transmission (404) cover is located in the first axle sleeve (402), just transmission (404) one end be equipped with mounting groove (4041) that output shaft (301) cooperation on awaited measuring equipment (3) is connected, shaft coupling (401) one end with transmission (404) other end cooperation is connected, shaft coupling (401) other end with second axle sleeve (403) rotate and connect.

3. The power transmission device according to claim 2, characterized in that: the transmission assembly (4) further comprises an elastic resetting piece (405), the elastic resetting piece (405) is sleeved on one end of the coupler (401) and abutted to the driver (404) to enable the driver (404) to reset, a guide rod (4011) is arranged at the top end of the coupler (401), a guide groove (4042) matched with the guide rod (4011) is circumferentially arranged on the driver (404), and the guide rod (4011) is arranged on the guide groove (4042); when an output shaft (301) on the device to be tested (3) presses the driver (404), the driver (404) pushes the elastic resetting piece (405) to compress, and the guide rod (4011) vertically slides along the guide groove (4042).

4. The power transmission device according to claim 3, characterized in that: output shaft (301) on equipment to be tested (3) with during mounting groove (4041) cooperation on driver (404) is connected, driver (404) are in the elasticity resets and resets under the effect of piece (405), just output shaft (301) on equipment to be tested (3) with driver (404) clearance fit.

5. The power transmission device according to claim 4, characterized in that: the transmission assembly (4) further comprises a static torque sensor (406) and a fixed shaft sleeve (407), one end of the static torque sensor (406) is rotatably connected with the second shaft sleeve (403), and the other end of the static torque sensor (406) is rotatably connected with the fixed shaft sleeve (407).

6. The power transmission device according to claim 5, characterized in that: a key groove (4061) is formed in the static torque sensor (406), the second shaft sleeve (403) is fixedly connected with the key groove (4061) in the static torque sensor (406) through a fastener, and the second shaft sleeve (403) drives the static torque sensor (406) to rotate when rotating.

7. The power transmission device according to claim 6, characterized in that: and a bearing (6) and a bearing seat (7) are arranged on the second fixed seat (2), the bearing (6) is arranged in the bearing seat (7), and the bearing (6) is connected with one end of the fixed shaft sleeve (407) in a matching manner.

8. The power transmission device according to claim 7, characterized in that: the central axes of the coupler (401), the first shaft sleeve (402), the second shaft sleeve (403) and the driver (404) are collinear with the central axes of the static torque sensor (406), the fixed shaft sleeve (407), the bearing (6) and the bearing seat (7).

9. The power transmission device according to claim 8, characterized in that: be equipped with spacing subassembly (8) on second fixing base (2), spacing subassembly (8) are including first positioning seat (801) and second positioning seat (802) of mutual interval, be equipped with first metal rod (8011) on first positioning seat (801), be equipped with second metal rod (8021) on second positioning seat (802), be equipped with on fixed axle sleeve (407) circumference with first metal rod (8011) with contact complex third metal rod (4071) of second metal rod (8021).

10. The power transmission device according to claim 9, characterized in that: the first metal rod (8011) and the second metal rod (8021) are respectively in communication connection with the programmable logic controller (5), the static torque sensor (406) is electrically connected with the programmable logic controller (5), and when the static torque sensor (406) rotates, the fixed shaft sleeve (407) is driven to rotate, so that the third metal rod (4071) is in contact with the first metal rod (8011) or the second metal rod (8021).