Device for conveniently measuring size of long hollow rotor

Abstract

The utility model relates to the technical field of motor manufacturing, in particular to a long hollow rotor size convenient measuring device which not only can fix a rotor and prevent the rotor from shaking in the measuring process to influence the measuring accuracy, but also can measure the interior of the long hollow rotor and improve the accuracy through multiple times of measurement. Comprising a fixing mechanism; the device further comprises an inner supporting mechanism, two rotating mechanisms, a lifting mechanism and a measuring mechanism, the inner supporting mechanism is installed on the fixing mechanism and fixes the inner side of the rotor, the two rotating mechanisms are both installed on the inner supporting mechanism and drive the rotor to rotate, and the lifting mechanism is installed on the fixing mechanism and drives the measuring mechanism to ascend and descend. The measuring mechanism is installed on the lifting mechanism and measures the inner wall of the rotor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of motor manufacturing, in particular to a long hollow rotor size convenient measuring device. BACKGROUND

[0002] Rotor as motor, generator, gas turbine and turbine compressor high-speed rotating main component in power machinery or working machinery, the rotor of motor is generally composed of the core of coil winding, slip ring, fan blade, no matter which kind of rotor, when its operation will produce centrifugal inertia force, and influence the strength and mechanical efficiency of rotor.

[0003] The existing long hollow rotor size convenient measuring device, for example, the utility model patent no. 202323086791.8 discloses a rotor outer diameter measuring device, its main structure includes fixed mechanism, connecting assembly and measuring piece, fixed mechanism sets up on the rotor, fixed mechanism and rotor sliding connection, connecting assembly is connected with measuring piece and fixed mechanism respectively, connecting assembly is used for fixing measuring piece, measuring piece and rotor sliding connection, fixed mechanism can drive measuring piece relative to rotor sliding through connecting assembly, measuring piece is used for measuring the roundness of rotor, fixed mechanism fixedly connects connecting assembly and measuring piece;When using, facing different diameter rotors, first, support rod and collet are set on connecting rod, and extend into the inner diameter of rotor, then the rotor is placed on the horizontal plane, support rod and collet are naturally vertical, and support rod and collet are pushed, so that the ball on the thimble abuts against the inner wall of rotor, and the measuring piece on the collet can be extruded with the inner wall of rotor, and support rod and collet are fixed, then the first pad and the second pad are sleeved at both ends, the first pad and the second pad are aligned with the end face of rotor, and the connecting rod tends to the diameter position of rotor, then, one hand extrudes the collet, so that the ball on the thimble is always close to the inner wall of rotor, and the connecting rod is rotated for one round, so that the measuring piece can measure the inner diameter of rotor for one round, and the maximum value and the minimum value measured by the measuring piece are used to judge the roundness of rotor.

[0004] However, the existing detection equipment mostly does not fix the rotor, and measurement error is prone to exist, and the existing detection equipment mostly can only check the equipment end face size, and it is difficult to detect the inner diameter size of long hollow rotor, and it is not suitable for long hollow rotor size detection. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a long hollow rotor size convenient measuring device, which can not only fix the rotor, avoid the influence of rotor shaking on measurement accuracy during measurement, but also measure the inside of long hollow rotor, and improve the accuracy through multiple measurements.

[0006] The utility model discloses a long hollow rotor size convenient measuring device, including fixed establishment, still including inner support mechanism, two groups of rotating mechanism, hoisting mechanism and measuring mechanism, and inner support mechanism installs on fixed establishment and fixes the inside of rotor, two groups of rotating mechanism all install on inner support mechanism and drive rotor rotation, hoisting mechanism installs on fixed establishment and drives measuring mechanism to go up and down, and measuring mechanism installs on hoisting mechanism and measures the inner wall of rotor, the staff places hollow rotor on fixed establishment, and fixed establishment fixes it, and then hoisting mechanism drives measuring mechanism to drop, and the convenient measuring mechanism measures the inner wall of rotor, and then fixed establishment releases the fixing of rotor, and two groups of rotating mechanism drive rotor rotation, and the convenient measurement improves the measurement accuracy.

[0007] Preferably, the fixed mechanism includes a base, a back plate, a connecting frame, a display screen, four groups of air cylinders and two groups of arc-shaped clamping plates, the bottom end of the base is connected with the working surface, the bottom end of the back plate is connected with the top end of the base, the connecting frame is installed between the base and the back plate, the display screen is installed on the connecting frame, the four groups of air cylinders are installed on the base in pairs, and the arc-shaped clamping plates are installed on the two groups of air cylinders on the same side.

[0008] Preferably, the inner support mechanism includes a stepping motor, a speed reducer, a bidirectional screw and two groups of sliding blocks, the stepping motor is installed on the back plate, the speed reducer is installed on the back plate and the output end of the stepping motor is connected with the input end of the speed reducer, a groove is opened on the base, the bidirectional screw is rotationally installed in the groove of the base and is longitudinally connected with the speed reducer, and the two groups of sliding blocks are slidingly installed in the groove of the base.

[0009] Preferably, the rotating mechanism includes a motor, a first gear, a rotating shaft, a second gear and a roller, the motor is installed on the sliding block, the first gear is installed on the motor, the rotating shaft is rotationally installed on the sliding block, the second gear is installed on the rotating shaft and is in meshing transmission with the first gear, and the roller is installed on the second gear.

[0010] Preferably, the roller is made of rubber material; the rubber material has certain elasticity and wear resistance, which can not only avoid scratching the rotor when the roller contacts the inner wall of the rotor, but also can enhance the friction between the roller and the inner wall of the rotor, so as to conveniently drive the rotor to rotate.

[0011] Preferably, the lifting mechanism comprises a hydraulic cylinder, a connecting plate, a counterweight, two sets of guide rods and two sets of positioning plates, the hydraulic cylinder is installed on the back plate, the bottom end of the connecting plate is connected with the top end of the hydraulic cylinder, the top end of the counterweight is connected with the bottom end of the connecting plate, the two sets of guide rods are both installed on the connecting frame, and the two sets of positioning plates are both slidably installed on the two sets of guide rods and connected with the connecting plate; the hydraulic cylinder pulls down the connecting plate, the connecting plate drives the measuring mechanism to extend into the hollow interior of the rotor, the weight of the measuring mechanism is balanced by arranging the counterweight, and the connecting plate drives the two sets of positioning plates to slide down along the two sets of guide rods, so that the stability of the connecting plate and the measuring mechanism during movement is enhanced.

[0012] Preferably, the measuring mechanism comprises two sets of clamping strips, a measuring rod, a controller, six sets of probes, six sets of extension rods and six sets of balls, the connecting frame is provided with positioning grooves, the two sets of clamping strips are both installed in the positioning grooves of the connecting frame, the top end of the measuring rod is connected with the bottom end of the connecting plate, and the measuring rod is provided with two sets of sliding grooves, the top end of the controller is connected with the bottom end of the measuring rod, the six sets of probes are all installed on the controller, the six sets of extension rods are all installed on the controller, and the six sets of balls are respectively installed on the six sets of extension rods; the connecting plate pushes the measuring rod to descend, the two sets of clamping strips and the two sets of sliding grooves of the measuring rod are matched, the measuring rod is conveniently guided, the stability of the measuring rod during descending is improved, after the controller enters the interior of the rotor, the six sets of balls are in contact with the inner wall of the rotor, the six sets of extension rods are pushed to extend or retract, the six sets of probes sense the extension or retraction amount of the six sets of extension rods, and data is transmitted to the display screen through electric signals for display.

[0013] Compared with the prior art, the utility model has the advantages that: the staff places the hollow rotor on the fixing mechanism, the fixing mechanism fixes it, the inner support mechanism fixes the inner side, then the lifting mechanism drives the measuring mechanism to descend, the measuring mechanism conveniently measures the inner wall of the rotor, then the fixing mechanism loosens the fixing of the rotor, the two sets of rotating mechanisms drive the rotor to rotate, convenient for measuring again, and the measurement precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the axial measurement structure schematic diagram of the utility model;

[0015] Figure 2 is the partial enlarged axial measurement structure schematic diagram of the fixing mechanism of the utility model;

[0016] Figure 3 is the axial measurement structure schematic diagram of the inner support mechanism and the lifting mechanism of the utility model;

[0017] Figure 4 is the partial enlarged axial measurement structure schematic diagram of the rotating mechanism of the utility model;

[0018] Figure 5 is the partial enlarged sectional axial measurement structure schematic diagram of the measuring mechanism of the utility model.

[0019] Marked in the drawing: 01, fixing mechanism; 11, base; 12, back plate; 13, connecting frame; 14, display screen; 15, air cylinder; 16, arc-shaped clamping plate; 02, inner supporting mechanism; 21, stepping motor; 22, speed reducer; 23, bidirectional screw; 24, sliding block; 03, rotating mechanism; 31, motor; 32, first gear; 33, rotating shaft; 34, second gear; 35, roller; 04, lifting mechanism; 41, hydraulic cylinder; 42, connecting plate; 43, counterweight; 44, guide rod; 45, positioning plate; 05, measuring mechanism; 51, clamping strip; 52, measuring rod; 53, controller; 54, probe; 55, extension rod; 56, ball. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0021] Example 1

[0022] The utility model discloses a long hollow rotor size convenient measuring device, including fixed establishment 01, still including inside bracing mechanism 02, two groups of rotating mechanism 03, hoisting mechanism 04 and measuring mechanism 05, inside bracing mechanism 02 installs on fixed establishment 01 and fixes to the inside of rotor, two groups of rotating mechanism 03 all install on inside bracing mechanism 02 and drive rotor rotation, hoisting mechanism 04 installs on fixed establishment 01 and drives measuring mechanism 05 to go up and down, and measuring mechanism 05 installs on hoisting mechanism 04 and measures the inner wall of rotor, fixed establishment 01 includes base 11, backboard 12, connecting frame 13, display screen 14, four groups of air cylinders 15 and two groups of arc clamps 16, and the bottom of base 11 is connected with the working surface, and the bottom of backboard 12 is connected with the top end of base 11, and connecting frame 13 is installed between base 11 and backboard 12, and display screen 14 is installed on connecting frame 13, and four groups of air cylinders 15 are oppositely installed on base 11, and arc clamps 16 are installed on two groups of air cylinders 15 on the same side, inside bracing mechanism 02 includes step motor 21, speed reducer 22, two -way lead screw 23 and two groups of sliding block 24, step motor 21 installs on backboard 12, speed reducer 22 installs on backboard 12 and step motor 21's output is connected with speed reducer 22's input, and the recess is opened on base 11, two -way lead screw 23 rotation is installed in the recess of base 11 and is connected with speed reducer 22 longitudinally, and two groups of sliding block 24 are all slidingly installed in the recess of base 11, rotating mechanism 03 includes motor 31, first gear 32, pivot 33, second gear 34 and gyro wheel 35, and motor 31 is installed on sliding block 24, and first gear 32 is installed on motor 31, and pivot 33 rotation is installed on sliding block 24, and second gear 34 is installed on pivot 33 and is engaged transmission with first gear 32, and gyro wheel 35 is installed on second gear 34, still including the gyro wheel 35 is rubber material, hoisting mechanism 04 includes hydraulic cylinder 41, connecting plate 42, counterweight 43, two groups of guide rods 44 and two groups of positioning plates 45, and hydraulic cylinder 41 is installed on backboard 12, and the bottom of connecting plate 42 is connected with the top end of hydraulic cylinder 41, and the top end of counterweight 43 is connected with the bottom of connecting plate 42, and two groups of guide rods 44 all are installed on connecting frame 13, and two groups of positioning plates 45 are slidingly installed on two groups of guide rods 44 respectively and are connected with connecting plate 42.In its work, first, the staff will be hollow rotor vertical placed on the base 11, start four sets of air cylinder 15 push two sets of arc-shaped clamping plate 16 close to the outside of the rotor fixed clamping, start stepper motor 21, stepper motor 21 through the speed reducer 22 drive bidirectional screw 23 rotation, bidirectional screw 23 drive two sets of slider 24 gradually away, make two sets of slider 24 clamping the inner wall of the rotor, hydraulic cylinder 41 pull down the connecting plate 42, connecting plate 42 drive measuring mechanism 05 into the hollow inside the rotor, through the setting counterweight 43 balance measuring mechanism 05 weight, connecting plate 42 drive two sets of positioning plate 45 along two sets of guide rod 44 slide down, enhance the stability of connecting plate 42 and measuring mechanism 05 in the process of moving, measuring mechanism 05 to the rotor inner wall size measurement, when a measurement is completed, four sets of air cylinder 15 close to two sets of arc-shaped clamping plate 16 loose to the rotor clamping, start the motor 31, motor 31 drive first gear 32 rotation, first gear 32 and second gear 34 meshing transmission, second gear 34 drive shaft 33 and roller 35 rotation, roller 35 against the inner wall of the rotor and drive the rotor rotation, roller 35 is rubber material, rubber material has certain elasticity and wear resistance, both can avoid roller 35 and the inner wall of the rotor contact will rotor scratch, but also can enhance the friction between roller 35 and the inner wall of the rotor, facilitate drive rotor rotation measurement again.

[0023] Example 2

[0024] As Figures 1 to 5As shown, the long hollow rotor size convenient measuring device, on the basis of embodiment 1;The measuring mechanism 05 includes two groups of clamping strips 51, a measuring rod 52, a controller 53, six groups of probes 54, six groups of extension rods 55 and six groups of balls 56, the connecting frame 13 is provided with a positioning groove, the two groups of clamping strips 51 are installed in the positioning groove of the connecting frame 13, the top end of the measuring rod 52 is connected with the bottom end of the connecting plate 42, and two groups of sliding grooves are formed in the measuring rod 52, the top end of the controller 53 is connected with the bottom end of the measuring rod 52, the six groups of probes 54 are all installed on the controller 53, the six groups of extension rods 55 are all installed on the controller 53, and the six groups of balls 56 are respectively installed on the six groups of extension rods 55;When it works, first, the staff places the hollow rotor vertically on the base 11, starts four groups of air cylinders 15 to drive two groups of arc-shaped clamping plates 16 to be close to each other, fixes and clamps the outer side of the rotor, starts the stepper motor 21, the stepper motor 21 drives the bidirectional lead screw 23 to rotate through the speed reducer 22, the bidirectional lead screw 23 drives the two groups of sliding blocks 24 to gradually move away, so that the two groups of sliding blocks 24 clamp the inner wall of the rotor, the hydraulic cylinder 41 pulls down the connecting plate 42, the connecting plate 42 drives the measuring mechanism 05 to extend into the hollow inside of the rotor, the weight of the measuring mechanism 05 is balanced through the setting counterweight 43, the connecting plate 42 drives the two groups of positioning plates 45 to slide along the two groups of guide rods 44, and the stability of the connecting plate 42 and the measuring mechanism 05 in the moving process is enhanced, the connecting plate 42 drives the measuring rod 52 to descend, the two groups of sliding grooves of the two groups of clamping strips 51 and the measuring rod 52 are matched, the measuring rod 52 is conveniently guided, the stability of the measuring rod 52 in the descending process is improved, after the controller 53 enters the inside of the rotor, the six groups of balls 56 are in contact with the inner wall of the rotor, the six groups of extension rods 55 are driven to stretch out and retract, the six groups of probes 54 induct the extension amount of the six groups of extension rods 55, and simultaneously data is transmitted to the display screen 14 through electric signals and is displayed, when the measurement is completed once, the four groups of air cylinders 15 are close to the two groups of arc-shaped clamping plates 16, the clamping of the rotor is loosened, the motor 31 is started, the motor 31 drives the first gear 32 to rotate, the first gear 32 and the second gear 34 are engaged in transmission, the second gear 34 drives the rotating shaft 33 and the roller 35 to rotate, the roller 35 abuts against the inner wall of the rotor and drives the rotor to rotate, the roller 35 is made of rubber material, the rubber material has certain elasticity and wear resistance, so that the rotor can be prevented from being scratched when the roller 35 is in contact with the inner wall of the rotor, and the friction force between the roller 35 and the inner wall of the rotor can be enhanced, so that the rotor is conveniently driven to rotate and measured again.

[0025] The stepper motor 21 and the speed reducer 22 of the utility model are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0026] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A convenient device for measuring the size of a long hollow rotor, comprising a fixing mechanism (01); characterized in that: The invention also includes an inner supporting mechanism (02), two sets of rotating mechanisms (03), a lifting mechanism (04) and a measuring mechanism (05). The inner supporting mechanism (02) is installed on the fixing mechanism (01) and fixes the inner side of the rotor. The two sets of rotating mechanisms (03) are installed on the inner supporting mechanism (02) and drive the rotor to rotate. The lifting mechanism (04) is installed on the fixing mechanism (01) and drives the measuring mechanism (05) to rise and fall. The measuring mechanism (05) is installed on the lifting mechanism (04) and measures the inner wall of the rotor.

2. A convenient measuring device for the size of a long hollow rotor according to claim 1, characterized in that: The fixing mechanism (01) includes a base (11), a back plate (12), a connecting frame (13), a display screen (14), four groups of cylinders (15) and two groups of arc-shaped clamping plates (16). The bottom end of the base (11) is connected to the working surface, the bottom end of the back plate (12) is connected to the top end of the base (11), the connecting frame (13) is installed between the base (11) and the back plate (12), the display screen (14) is installed on the connecting frame (13), the four groups of cylinders (15) are installed on the base (11) in pairs, and the arc-shaped clamping plates (16) are installed on the two groups of cylinders (15) on the same side.

3. A convenient measuring device for the size of a long hollow rotor as claimed in claim 2, characterized in that: The internal support mechanism (02) includes a stepper motor (21), a reducer (22), a bidirectional lead screw (23) and two sets of sliders (24). The stepper motor (21) is mounted on the back plate (12), the reducer (22) is mounted on the back plate (12) and the output end of the stepper motor (21) is connected to the input end of the reducer (22). A groove is provided on the base (11). The bidirectional lead screw (23) is rotatably mounted in the groove of the base (11) and is longitudinally connected to the reducer (22). The two sets of sliders (24) are both slidably mounted in the groove of the base (11).

4. A convenient device for measuring the size of a long hollow rotor as claimed in claim 3, characterized in that: The rotating mechanism (03) includes a motor (31), a first gear (32), a rotating shaft (33), a second gear (34) and a roller (35). The motor (31) is mounted on the slider (24), the first gear (32) is mounted on the motor (31), the rotating shaft (33) is rotatably mounted on the slider (24), the second gear (34) is mounted on the rotating shaft (33) and meshes with the first gear (32) for transmission, and the roller (35) is mounted on the second gear (34).

5. A convenient device for measuring the size of a long hollow rotor as claimed in claim 4, characterized in that: The roller (35) is also made of rubber.

6. A convenient device for measuring the size of a long hollow rotor as claimed in claim 2, characterized in that: The lifting mechanism (04) includes a hydraulic cylinder (41), a connecting plate (42), a counterweight (43), two sets of guide rods (44) and two sets of positioning plates (45). The hydraulic cylinder (41) is installed on the back plate (12). The bottom end of the connecting plate (42) is connected to the top end of the hydraulic cylinder (41). The top end of the counterweight (43) is connected to the bottom end of the connecting plate (42). The two sets of guide rods (44) are installed on the connecting frame (13). The two sets of positioning plates (45) are respectively slidably installed on the two sets of guide rods (44) and connected to the connecting plate (42).

7. A convenient device for measuring the size of a long hollow rotor as claimed in claim 6, characterized in that: The measuring mechanism (05) includes two groups of card strips (51), a measuring rod (52), a controller (53), six groups of probes (54), six groups of extension rods (55) and six groups of ball bearings (56). A positioning groove is provided on the connecting frame (13). The two groups of card strips (51) are installed in the positioning groove of the connecting frame (13). The top end of the measuring rod (52) is connected to the bottom end of the connecting plate (42) and the measuring rod (52) is provided with two groups of slide grooves. The top end of the controller (53) is connected to the bottom end of the measuring rod (52). The six groups of probes (54) are installed on the controller (53). The six groups of extension rods (55) are installed on the controller (53). The six groups of ball bearings (56) are respectively installed on the six groups of extension rods (55).

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