CN211179882U

CN211179882U - Motor rotation speed detection device

Info

Publication number: CN211179882U
Application number: CN202020086911.1U
Authority: CN
Inventors: 黄力
Original assignee: Jiangxi Guanli Electromechanical Co ltd
Current assignee: Jiangxi Guanli Electromechanical Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-08-04
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a motor rotating speed detection device, which comprises a shell and a shaft lever, and is characterized in that both sides of the shell are provided with signal receivers, the signal receivers are fixedly connected with the shell, the top end and the bottom end of the shell are respectively provided with sealing glass, the sealing glass is connected with a shell buckle, the middle part of the top end of the sealing glass is provided with a lock catch, the bottom end of the lock catch is connected with the top end buckle of the shaft lever, the shaft lever is positioned at the middle part inside the shell, the middle part of the shaft lever is provided with a fixing ring, the fixing ring is connected with the shaft lever buckle, rotating rods are arranged around the fixing ring at equal intervals, one end of each rotating rod is fixedly connected with the fixing ring, the other end of each rotating rod is provided with an induction device, the bottom end of the induction device is fixedly connected with the top end of each rotating rod, one side of the, one side of the bottom end of the sealing glass is provided with an air pipe. The utility model discloses simple structure, numerical value is accurate.

Description

Motor rotation speed detection device

Technical Field

The utility model relates to the technical field of motors, particularly, relate to a motor speed detection device.

Background

At present, motors are widely applied to various fields of production and life, and along with the requirement on higher and higher electric energy quality, the control requirement on the motors is more and more accurate. The rotation speed of the motor is one of the important parameters for controlling the motor.

Manufacturers such as air conditioners, fans and refrigerators can inform theoretical motor rotation speed required by a certain load when ordering the motor from the motor manufacturers, and the motor manufacturers need to detect actual rotation speed of the motor before the motor leaves a factory, namely, the rotation speed of the motor installed on the actual load is detected. If the rotating speed of the motor is consistent with the theoretical rotating speed of the motor required by the actual load, the rotating speed of the motor is in accordance with the requirement, if the rotating speed of the motor is not consistent, the rotating speed of the motor is unqualified, for example, the theoretical rotating speed of the motor required by an air conditioner is 500r/min, but the rotating speed actually measured when the motor is installed on the air conditioner is lower than or higher than 500r/min, the rotating speed is unqualified. The motor needs to be installed on an actual load, the installation and disassembly difficulty is high, time and labor are consumed particularly in batch detection, and the working efficiency is seriously influenced. And motor manufacturers need to purchase actual loads to carry out experiments, and the detection cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor speed detection device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a motor rotating speed detection device comprises a shell and a shaft rod, and is characterized in that signal receivers are arranged on two sides of the shell and fixedly connected with the shell, sealing glass is respectively arranged at the top end and the bottom end of the shell and is connected with the shell in a buckling manner, a lock catch is arranged in the middle of the top end of the sealing glass, the bottom end of the lock catch is connected with the top end of the shaft rod in a buckling manner, the shaft rod is positioned in the middle of the inner part of the shell, a fixing ring is arranged in the middle of the shaft rod and is connected with the shaft rod in a buckling manner, rotating rods are arranged around the fixing ring at equal intervals, one end of each rotating rod is fixedly connected with the fixing ring, an induction device is arranged at the other end of each rotating rod, the bottom end of the induction device is fixedly connected with the top end of the rotating rod, and one side of, the bearing is fixedly connected with the bottom end of the sealing glass, the bottom end of the shaft rod is fixedly connected with the top end of the fixing device, screw rods are respectively installed on two sides of the fixing device, one end of each screw rod is fixedly connected with the knob, the other end of each screw rod is movably connected with the clamping device, a gasket is arranged on the inner wall of the clamping device, an air pipe is installed on one side of the bottom end of the sealing glass, and the air pipe is connected with a pneumatic valve pipeline.

Further, the gasket is bonded to the clamping device.

Further, the bearing is in shaft-driven connection with the shaft rod.

Furthermore, the signal receiver and the sensing device are respectively electrically connected with a power supply.

Furthermore, the rotating rods are 6 in number and are uniformly distributed on the fixing ring in the radial direction.

Further, the inside of the shell is a vacuum environment.

Further, the clamping device is in an arc structure.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses an external equipment detects motor speed, and the monitoring facilities is inside to be vacuum environment simultaneously, and the resistance is unlimited to be zero, can improve the higher numerical value of precision and refer to, and induction system and signal receiver's combination can count at the bull stick in signal receiver at every turn, is convenient for measure.

Drawings

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

Fig. 1 is an overall plan view schematically showing a motor rotation speed detecting apparatus;

FIG. 2 is an overall schematic plan view of a motor speed detecting apparatus;

fig. 3 is a schematic sectional view of a fixing device of a motor rotation speed detecting device.

Reference numerals:

1. a fixing ring; 2. locking; 3. a shaft lever; 4. sealing glass; 5. an induction device; 6. a housing; 7. A signal receiver; 8. a rotating rod; 9. a pneumatic valve; 10. an air tube; 11. a fixing device; 12. a bearing; 13. A clamping device; 14. a screw; 15. a knob; 16. and (7) a gasket.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a motor rotation speed detecting device according to an embodiment of the present invention includes a housing 6 and a shaft rod 3, and is characterized in that signal receivers 7 are disposed on two sides of the housing 6, the signal receivers 7 are fixedly connected to the housing 6, sealing glasses 4 are respectively mounted on the top and bottom of the housing 6, the sealing glasses 4 are connected to the housing 6 by a snap, a latch 2 is disposed in the middle of the top of the sealing glasses 4, the bottom of the latch 2 is connected to the top of the shaft rod 3 by a snap, the shaft rod 3 is located in the middle of the housing 6, a fixing ring 1 is disposed in the middle of the shaft rod 3, the fixing ring 1 is connected to the shaft rod 3 by a snap, rotating rods 8 are equidistantly mounted around the fixing ring 1, and one end of the rotating rod 8 is fixedly connected to the fixing ring 1, the other end of the rotating rod 8 is provided with an induction device 5, the bottom end of the induction device 5 is fixedly connected with the top end of the rotating rod 8, one side of the bottom end of the shaft rod 3 is movably connected with a bearing 12, the bearing 12 is fixedly connected with the bottom end of the sealing glass 4, the bottom end of the shaft rod 3 is fixedly connected with the top end of the fixing device 11, screw rods 14 are respectively installed on two sides of the fixing device 11, one end of each screw rod 14 is fixedly connected with a knob 15, the other end of each screw rod 14 is movably connected with a clamping device 13, a gasket 16 is arranged on the inner wall of each clamping device 13, an air pipe 10 is installed on one side of the bottom end of the sealing glass 4, and the air pipe 10 is connected.

Through the above technical scheme of the utility model, the gasket 16 with clamping device 13 bonds, bearing 12 with 3 axle dynamic connections of axostylus axostyle, signal receiver 7 with induction system 5 respectively with power electric connection, 8 quantity of bull sticks are 6, and radial evenly distributed is in gu fixed ring 1 is last, 6 inside vacuum environment that is of casing, clamping device 13 shape is the arc structure.

The working principle is as follows:

fixing device 11 and the axle installation of motor are twisted and are moved knob 15 at both ends, let clamping device 13 press from both sides tight fixedly to the motor shaft, and trachea 10 is connected with outside aspiration pump, and the air pump work is taken out the atmospheric pressure of 6 insides of casing to the vacuum, and atmospheric pressure valve 9 prevents the air current backward flow, and the motor starts, and bull stick 8 begins high-speed rotations, and induction system 5 counts through signal receiver 7 at every turn.

In summary, the following steps: the utility model discloses an external equipment detects motor speed, and the monitoring facilities is inside to be vacuum environment simultaneously, and the resistance is unlimited to be zero, can improve the higher numerical value of precision and refer to, and induction system and signal receiver's combination can count at the bull stick in signal receiver at every turn, is convenient for measure.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The motor rotating speed detection device comprises a shell (6) and a shaft rod (3), and is characterized in that signal receivers (7) are arranged on two sides of the shell (6), the signal receivers (7) are fixedly connected with the shell (6), sealing glass (4) is respectively installed at the top end and the bottom end of the shell (6), the sealing glass (4) is connected with the shell (6) in a buckling mode, a lock catch (2) is arranged in the middle of the top end of the sealing glass (4), the bottom end of the lock catch (2) is connected with the top end of the shaft rod (3) in a buckling mode, the shaft rod (3) is located in the middle of the inside of the shell (6), a fixing ring (1) is arranged in the middle of the shaft rod (3), the fixing ring (1) is connected with the shaft rod (3) in a buckling mode, rotating rods (8) are installed around the fixing ring (1) at equal intervals, one end of the rotating rod (8) is fixedly connected with the fixed ring (1), the other end of the rotating rod (8) is provided with an induction device (5), the bottom end of the induction device (5) is fixedly connected with the top end of the rotating rod (8), one side of the bottom end of the shaft rod (3) is movably connected with a bearing (12), the bearing (12) is fixedly connected with the bottom end of the sealing glass (4), the bottom end of the shaft rod (3) is fixedly connected with the top end of a fixing device (11), two sides of the fixing device (11) are respectively provided with a screw rod (14), one end of the screw rod (14) is fixedly connected with a knob (15), the other end of the screw rod (14) is movably connected with a clamping device (13), the inner wall of the clamping device (13) is provided with a gasket (16), one side of the bottom end of the sealing glass (4) is provided with an air pipe (10), the air pipe (10) is connected with the air pressure valve (9) through a pipeline.

2. A motor speed detecting device according to claim 1, wherein the spacer (16) is bonded to the holding means (13).

3. The motor speed detection device according to claim 1, wherein the bearing (12) is axially movably connected with the shaft rod (3).

4. The motor rotation speed detecting device according to claim 1, wherein the signal receiver (7) and the sensing device (5) are electrically connected to a power supply respectively.

5. The motor speed detection device according to claim 1, wherein the number of the rotating rods (8) is 6, and the rotating rods are radially and uniformly distributed on the fixed ring (1).

6. The motor rotation speed detecting device according to claim 1, wherein the inside of the housing (6) is a vacuum environment.

7. The motor rotation speed detecting device according to claim 1, wherein the holding device (13) is shaped in an arc structure.