CN212675116U

CN212675116U - Device for detecting effectiveness of abnormal power-off protection function of motor stator of crane

Info

Publication number: CN212675116U
Application number: CN202020958716.3U
Authority: CN
Inventors: 罗力; 周西; 胡万刚
Original assignee: Guizhou Special Equipment Inspection & Testing Institute
Current assignee: Guizhou Special Equipment Inspection & Testing Institute
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-03-09
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to a hoist stator detection device's technical field, concretely relates to hoist motor stator loses electric protect function validity detection device unusually, including stator supporting component and detection device supporting component, stator supporting component includes the base and is located the chamber of placing of base top, detection device supporting component include the supporting seat and be located the support frame on the supporting seat, are provided with the rotation lead screw on the support frame, are provided with the installation cavity on the supporting seat, rotate the lead screw and are located position cover in the installation cavity is equipped with the worm wheel that keeps fixed connection with the rotation lead screw, and one side of worm wheel is provided with the worm that meshes mutually with the worm wheel, rotates and is equipped with the centre gripping arm on the lead screw, the centre gripping arm is kept away from the one end of rotating the lead screw is provided with the test. Through the stator supporting component and the detecting device supporting component which are arranged, the machine positioning detection is realized, the problem of shaking caused by manual detection is avoided, and the detection precision is improved.

Description

Device for detecting effectiveness of abnormal power-off protection function of motor stator of crane

Technical Field

The utility model relates to a hoist stator detection device's technical field, concretely relates to hoist motor stator loses electric protect function validity detection device unusually.

Background

Before the crane motor is used, the effectiveness detection of the motor stator power-off protection function can be carried out. The magnetic flux of the stator component is one of important indexes of the motor stator out-of-point protection function, so that the detection of the magnetic flux of the stator component is an important link in the motor detection process.

Most of the existing measuring devices are directly arranged on a production line, the whole machine is large, the movement is unchanged, and the cost is high. The single motor stator assembly cannot be tested, and the motor stator assembly is difficult to apply in the process of repairing the motor and the like. Although there are some small detection devices, most are directed to bar magnets rather than motor stator assemblies. Therefore, in actual operation, manual detection is often performed manually, but the detection result is often deviated due to shaking of the hand or the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist motor stator loses electric protect function validity detection device unusually, and the simple operation reduces measuring error.

In order to achieve the above object, the utility model provides a crane motor stator abnormal power-off protection function validity detection device, which comprises a stator supporting component and a detection device supporting component, wherein the stator supporting component comprises a base and a placing cavity positioned above the base, a stator component can be placed in the placing cavity, the detection device supporting component comprises a supporting seat and a supporting frame positioned on the supporting seat, a rotating lead screw is arranged on the supporting frame, two ends of the rotating lead screw are rotationally connected with the supporting frame, an installation cavity is arranged on the supporting seat, a worm wheel fixedly connected with the rotating lead screw is sleeved at the position of the rotating lead screw in the installation cavity, a worm meshed with the worm wheel is arranged on one side of the worm wheel, one end of the worm extends out of the base, and a knob is sleeved at the end of the worm extending out of the base, the rotary screw rod is sleeved with a clamping arm, the clamping arm is far away from one end of the rotary screw rod and is provided with a detection frame, a detection probe is arranged on the detection frame, and the detection probe can be located in the placement cavity.

Preferably, the support frame is provided with a limiting wall, and two sides of the clamping arm are abutted to the limiting wall.

Preferably, one side of centre gripping arm is provided with the centre gripping hand, the spout has been seted up to the centre gripping arm, centre gripping hand sliding connection in the spout, one side of centre gripping arm is provided with but the butt is fixed the spacing bolt of centre gripping hand.

Preferably, the detection frame comprises a connecting rod which is slidably connected with the clamping hand and a sleeve which is fixed at the bottom end of the connecting rod, and the detection probe is positioned in the sleeve.

Preferably, an annular sliding sleeve is arranged at one end of the clamping hand and covers the connecting rod.

Preferably, the holding tank has been seted up to the inboard of sliding sleeve, be provided with the butt piece in the holding tank, the outside of sliding sleeve is provided with and drives the butt piece butt the butt bolt of connecting rod.

Preferably, the knob is provided at an outer circumferential surface thereof with a friction groove for increasing a frictional force.

Preferably, the support frame is provided with scales.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses simple structure, it is convenient to remove, can detect solitary stator module, simultaneously, through stator supporting component and the detection device supporting component who sets up, has realized that the machine location detects, has avoided the problem that manual detection rocked, has improved and has detected the structure precision, improves the maintenance efficiency of motor.

(2) The height of the clamping arm, the length of the clamping hand and the height of the sleeve can be adjusted, the requirement that the stator assembly with various different model sizes is measured and detected can be met, and the multifunctionality of the measuring device is increased.

(3) The length after the adjustment of the clamping hand and the height after the adjustment can be fixed by the arrangement of the limiting bolt and the abutting bolt, so that the measurement of the measuring device is facilitated.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a crane motor stator abnormal power loss protection function effectiveness detection device;

FIG. 2 is a schematic view of the overall structure of the supporting assembly of the detecting device;

FIG. 3 is a schematic view of the connection between the clamp arm and the clamp hand;

fig. 4 is a schematic view of the overall structure of the clamping hand.

In the figure: 1. a stator support assembly; 11. a base; 12. a placement chamber; 2. a detection device support assembly; 21. a supporting seat; 211. a mounting cavity; 212. a worm gear; 213. a worm; 22. a support frame; 221. rotating the screw rod; 222. a limiting wall; 3. a knob; 31. a friction groove; 4. a clamp arm; 41. clamping a hand; 411. a sliding sleeve; 4111. accommodating grooves; 4112. an abutting member; 4113. an abutment bolt; 42. a chute; 43. a limit bolt; 5. a detection frame; 51. a connecting rod; 52. a sleeve; 6. detecting a probe; 7. a stator assembly.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1-4, the effectiveness testing device for abnormal power loss protection function of a stator of a crane motor provided by an embodiment of the present invention includes a stator supporting assembly 1 and a testing device supporting assembly 2, the stator supporting assembly 1 includes a base 11 and a placing cavity 12 located above the base 11, a stator assembly 7 can be placed in the placing cavity 12, the testing device supporting assembly 2 includes a supporting seat 21 and a supporting frame 22 located on the supporting seat 21, a rotating lead screw 221 is disposed on the supporting frame 22, both ends of the rotating lead screw 221 are rotatably connected to the supporting frame 22, an installation cavity 211 is disposed on the supporting seat 21, a worm wheel 212 fixedly connected to the rotating lead screw 221 is sleeved at a position where the rotating lead screw 221 is located in the installation cavity 211, a worm 213 engaged with the worm wheel 212 is disposed on one side of the worm wheel 212, one end of the worm 213 extends out of the base 11, one end of the worm 213 extending out of the base 11 is sleeved with a knob 3, the rotating screw rod 221 is sleeved with a clamping arm 4, one end, far away from the rotating screw rod 221, of the clamping arm 4 is provided with a detection frame 5, the detection frame 5 is provided with a detection probe 6, and the detection probe 6 can be located in the placing cavity 12.

The utility model discloses simple structure, it is convenient to remove, can detect solitary stator module 7, simultaneously, through stator supporting component 1 and the detection device supporting component 2 that sets up, has realized that the machine location detects, has avoided the problem that manual detection rocked, has improved and has detected the structure precision, improves the maintenance efficiency of motor.

Further, the supporting frame 22 is provided with a limiting wall 222, and both sides of the clamping arm 4 abut against the limiting wall 222.

Through setting up spacing wall 222, restrict the rotation direction of centre gripping arm 4 for centre gripping arm 4 can't rotate, can only carry out elevating movement in vertical direction.

Further, one side of the clamping arm 4 is provided with a clamping hand 41, the clamping arm 4 is provided with a sliding groove 42, the clamping hand 41 is slidably connected to the sliding groove 42, and one side of the clamping arm 4 is provided with a limit bolt 43 which can be abutted and fixed to the clamping hand 41.

Through setting up spout 42, can increase the length that shifts out of centre gripping hand 41, and then conveniently adjust the position of test probe 6, make its convenient measurement. Meanwhile, the limiting bolt 43 can fix the clamping hand 41 after moving, and the clamping hand 41 is prevented from shaking.

Further, the detecting frame 5 comprises a connecting rod 51 slidably connected to the clamping hand 41 and a sleeve 52 fixed at the bottom end of the connecting rod 51, and the detecting probe 6 is located in the sleeve 52.

Through setting up sleeve 52, carry out the centre gripping to test probe 6 and fix, make things convenient for test probe 6's detection.

Further, an annular sliding sleeve 411 is arranged at one end of the clamping hand 41, and the sliding sleeve 411 covers the connecting rod 51.

Through setting up annular sliding sleeve 411, annular sliding sleeve 411 is great with connecting rod 51's area of contact, can be so that connecting rod 51 more steady that slides, has guaranteed that connecting rod 51 does not take place to squint in the ascending position of vertical direction.

Further, holding tank 4111 has been seted up to the inboard of sliding sleeve 411, be provided with butt piece 4112 in the holding tank 4111, the outside of sliding sleeve 411 is provided with and drives butt piece 4112 butt connecting rod 51's butt bolt 4113.

The receiving groove 4111 facilitates installation of the abutting member 4112, and rotation of the abutting bolt 4113 causes the abutting bolt 4113 to drive the abutting member 4112 to move, so that the abutting member 4112 abuts against the connecting rod 51 to fix the position after the connection movement,

further, the outer circumferential surface of the knob 3 is provided with a friction groove 31 that increases friction force.

Further, the support frame 22 is provided with scales.

The height of the clamping arm 4, the length of the clamping hand 41 and the height of the sleeve 52 can be adjusted, the requirement that the stator assembly 7 with various different models and sizes is measured and detected can be met, and the versatility of the measuring device is improved.

The setting of spacing bolt 43 and butt bolt 4113 can be fixed the length after adjustment of centre gripping hand 41 and the height after the adjustment, makes things convenient for measuring device's measurement.

The implementation process of the embodiment is as follows: for the measured subassembly 7 of the same model, the clamping arm 4 and the clamping hand 41 are adjusted according to the thickness of the measured subassembly 7, so that the sleeve 52 can extend into the central axis of the measured subassembly 7; according to the height of the subassembly 7 to be measured, the position of the connecting rod 51 on the clamping hand 41 is adjusted, so that the sleeve 52 can extend into the bottom of the subassembly 7 to be measured. The height of the clamping arm 4, the length of the clamping hand 41 and the height of the detection frame 5 can be adjusted, and the detection requirements of different types of stator assemblies 7 or different use environments can be met.

Then the subassembly to be measured 7 is vertically placed in the cavity 12, then the detection probe 6 is placed in the sleeve 52, the position of the holding arm 4 on the support frame 22 is adjusted, the detection probe 6 is moved downwards along the axis of the subassembly to be measured 7, the height of the detection probe 6 is recorded when the detection probe is just lowered to the end of the subassembly to be measured 7, then the height of the detection probe 6 is lowered by a distance equal to half of the height of the subassembly to be measured 7, the position of the detection probe 6 is adjusted to be just at the center of the subassembly to be measured 7, and finally the magnetic flux of the subassembly to be measured 7 is measured in the direction of appropriately rotating the detection probe 6. Can confirm stator module 7's data according to the model of motor, then carry out quick, accurate measurement, except can be used in stator module 7 production, can also be used in the detection to trouble motor stator module 7, can improve the yields of product and trouble motor's maintenance efficiency.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The effectiveness detection device for the abnormal power loss protection function of the motor stator of the crane is characterized by comprising a stator supporting component (1) and a detection device supporting component (2), wherein the stator supporting component (1) comprises a base (11) and a placing cavity (12) positioned above the base (11), a stator component (7) can be placed in the placing cavity (12), the detection device supporting component (2) comprises a supporting seat (21) and a supporting frame (22) positioned on the supporting seat (21), a rotating lead screw (221) is arranged on the supporting frame (22), two ends of the rotating lead screw (221) are rotatably connected to the supporting frame (22), an installation cavity (211) is arranged on the supporting seat (21), a worm wheel (212) fixedly connected with the rotating lead screw (221) is sleeved at the position, positioned in the installation cavity (211), of the rotating lead screw (221), one side of worm wheel (212) is provided with worm (213) with worm wheel (212) engaged with, worm (213) one end is extended base (11), worm (213) extend the pot head of base (11) is equipped with knob (3), it is equipped with centre gripping arm (4) to rotate cover on lead screw (221), centre gripping arm (4) are kept away from the one end of rotating lead screw (221) is provided with detects frame (5), be provided with test probe (6) on detecting frame (5), test probe (6) can be located place in chamber (12).

2. The device for detecting the effectiveness of the abnormal power loss protection function of the motor stator of the crane according to claim 1, wherein the supporting frame (22) is provided with a limiting wall (222), and both sides of the clamping arm (4) are abutted against the limiting wall (222).

3. The device for detecting the effectiveness of the abnormal power loss protection function of the motor stator of the crane according to claim 1, wherein a clamping hand (41) is arranged on one side of the clamping arm (4), a sliding groove (42) is formed in the clamping arm (4), the clamping hand (41) is slidably connected to the sliding groove (42), and a limiting bolt (43) capable of abutting and fixing the clamping hand (41) is arranged on one side of the clamping arm (4).

4. The device for detecting the effectiveness of the abnormal power loss protection function of the motor stator of the crane according to claim 3, wherein the detection frame (5) comprises a connecting rod (51) connected to the clamping hand (41) in a sliding manner and a sleeve (52) fixed at the bottom end of the connecting rod (51), and the detection probe (6) is positioned in the sleeve (52).

5. The device for detecting the effectiveness of the abnormal power loss protection function of the motor stator of the crane according to claim 4, wherein an annular sliding sleeve (411) is arranged at one end of the clamping hand (41), and the sliding sleeve (411) covers the connecting rod (51).

6. The device for detecting the effectiveness of the abnormal power loss protection function of the motor stator of the crane according to claim 5, wherein an accommodating groove (4111) is formed in the inner side of the sliding sleeve (411), an abutting piece (4112) is arranged in the accommodating groove (4111), and an abutting bolt (4113) capable of driving the abutting piece (4112) to abut against the connecting rod (51) is arranged on the outer side of the sliding sleeve (411).

7. The device for detecting the effectiveness of the abnormal power loss protection function of the motor stator of the crane according to claim 1, wherein the outer peripheral surface of the knob (3) is provided with a friction groove (31) for increasing the friction force.

8. The device for detecting the effectiveness of the abnormal power loss protection function of the motor stator of the crane as claimed in claim 1, wherein the support frame (22) is provided with scales.