Spinning metering pump transmission shaft coaxiality alignment device

Abstract

The utility model relates to a coaxiality alignment device for a transmission shaft of a spinning metering pump, which comprises an alignment tool comprising a long rod. One end of the long rod is fixedly connected with the flange I, and the other end of the long rod is fixedly connected with the flange II; the axial deviation and the radial deviation of the flange I and the flange II are both 0; the central axis of the long rod coincides with the central axis of the flange I and the central axis of the flange II. The flange I is used for being connected with the backrest wheel in a matched mode, so that the axial deviation and the radial deviation of the flange I and the backrest wheel are zero. The flange II is used for being connected with the upper surface of the metering pump body in a matched mode, so that the axial deviation and the radial deviation of the flange II and the upper surface of the metering pump body are both zero. The exposed length when the transmission shaft I is connected with the coupling is recorded as a, the exposed length when the transmission shaft II is connected with the coupling cap of the metering pump is recorded as b, and the sum of a and b is smaller than the length of the alignment tool. The alignment tool is simple in structure, free of abrasion, convenient to align and capable of achieving rapid alignment.

Description

Technical Field

[0001] The utility model belongs to the technical field of alignment devices and relates to a coaxiality alignment device for a transmission shaft of a spinning metering pump. Background Art

[0002] The stability and reliability of chemical fiber production equipment operation are the basis of continuous chemical fiber production, and the spinning metering pump transmission device is the most important part of chemical fiber production equipment. Therefore, extending the service life and stability of the spinning metering transmission device is the top priority in equipment management. In order to ensure the excellent operation of the metering pump transmission device, it is necessary to ensure that the coaxiality of the drive shaft I connected to the motor backrest wheel (the motor output shaft and the backrest wheel have an interference fit) and the drive shaft II connected to the center of the general cap of the metering pump is adjusted to 0 for both axial deviation and radial deviation.

[0003] Therefore, before production, when installing the motor, it is necessary to adjust the coaxiality of the transmission shaft I and the transmission shaft II. However, the coaxiality correction method or device in the prior art, such as CN204755290U, records a coaxiality correction device for a metering pump motor. During use, its components are easily worn, the correction accuracy will become lower and lower as the number of corrections increases, and the correction takes a long time.

[0004] Therefore, it is of great significance to study a coaxiality alignment device for the transmission shaft of a spinning metering pump to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a coaxiality alignment device for a transmission shaft of a spinning metering pump.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is as follows:

[0007] A spinning metering pump transmission shaft coaxiality alignment device, the spinning metering pump transmission shaft coaxiality alignment device is used to adjust the coaxiality of the transmission shaft I and the transmission shaft II so that the axial deviation and radial deviation are both 0, the transmission shaft I and the motor output shaft are connected by a backrest wheel (the backrest wheel and the motor output shaft are interference fit, and the radial deviation of the two is 0), the transmission shaft II is connected to the center of the general cap of the metering pump (the cross-section of the general cap is circular), the metering pump is fixed on the spinning box, two parallel channel steels are fixed above the metering pump, and the channel steels are connected by two angle steels, the channel steels are used to provide support for the motor base plate, the angle steels are used to fix the motor base plate, and are detachably fixed to the motor base plate; the motor base plate is used to provide support for the motor and is detachably fixed to the motor; the spinning metering pump transmission shaft coaxiality alignment device includes an alignment tool, the alignment tool includes a long rod; one end of the long rod is fixedly connected to the flange I, and the other end of the long rod is fixedly connected to the flange II ; The axial deviation and radial deviation of flange I and flange II are both 0; the center axis of the long rod coincides with the center axis of flange I and flange II; flange I is used to cooperate with the backrest wheel, so that the axial deviation and radial deviation of flange I and the backrest wheel are both 0 (the connection method of flange I and the backrest wheel is exactly the same as the connection method of the backrest wheel and the drive shaft I, which is the prior art); flange II is used to cooperate with the upper surface of the metering pump body, so that the axial deviation and radial deviation of flange II and the upper surface of the metering pump body are both 0; the exposed length of the drive shaft I when connected to the backrest wheel is recorded as a, and the exposed length of the drive shaft II when connected to the general cap of the metering pump is recorded as b, and the sum of a and b is less than the length of the alignment tool; when flange I is cooperated with the backrest wheel and flange II is cooperated with the upper surface of the metering pump body, the center axis of the long rod passes through the center of the backrest wheel and the center of the general cap at the same time (that is, the center axis of the long rod passes through the center of the cross section of the general cap);

[0008] The specific usage process is: first fix the motor on the motor base plate, the output shaft of the motor passes through the motor base plate, the output shaft of the motor is connected to the backrest wheel, then unfix the angle steel and the motor base plate, and then connect the flange I of the alignment tool with the flange of the backrest wheel to ensure that the axial deviation and radial deviation between the two flanges are both 0; move the motor position (moving the motor drives the movement of the motor base plate at the same time), align the flange II of the alignment tool with the upper surface of the metering pump body, and then connect it with the upper surface of the metering pump body to make the axial deviation and radial deviation of the two 0, and then, under the premise of maintaining the horizontal position of the motor base plate and the angle between the motor base plate and the upper surface of the channel steel , fix the angle steel to the motor base plate (when flange II is connected with the general cap, the radial deviation between the two must be 0, and the horizontal position of the motor base plate needs to be adjusted; when flange II is connected with the general cap, the axial deviation between the two must be 0, and the angle between the motor base plate and the upper surface of the channel steel needs to be adjusted). Finally, remove the motor and the alignment tool, replace the drive shaft I on the motor, and install the drive shaft II on the metering pump. The motor is connected to the adjusted motor base plate (the connection between the motor and the motor base plate is a concave-convex fit, which is the existing technology). At this time, the axial deviation and radial deviation of the two drive shafts are both 0, thereby completing the alignment process. After that, the two drive shafts are connected by a safety pin and are ready for production use.

[0009] As the preferred technical solution:

[0010] The above-mentioned device for aligning the transmission shaft coaxiality of a spinning metering pump comprises a metering pump transition plate, a metering pump body and a general cap; the upper surface of the metering pump body is parallel to the horizontal plane; the general cap is fixed to the upper surface of the metering pump body, and the metering pump transition plate is located below the metering pump body; a vertical through hole I is provided on the metering pump body, and a vertical through hole II is provided on the metering pump transition plate, a bolt I is inserted into the through hole I and is threadedly connected with the through hole II to fix the metering pump body on the metering pump transition plate; the flange II is a cylindrical structure; along the direction of the center axis of the flange II, a stepped Through hole; the number of stepped through holes is the same as the number of through holes I; the stepped through holes consist of through hole a and through hole b, with through hole a located above through hole b; the inner diameter of through hole a is the same as the diameter of the screw of bolt I, the inner diameter of through hole b is the same as the diameter of the bolt head of bolt I, and the height of through hole b is the same as the height of the bolt head; a groove is provided on the lower surface of flange II along the direction of the central axis of flange II, and the size of the groove matches the size of the general cap in concave and convex manner; when flange II is mated and connected to the upper surface of the metering pump body, the vertical projection of the groove coincides with the general cap, and the central axes of through holes a, through holes b, and through hole I coincide;

[0011] The specific process of fitting and connecting flange II and the upper surface of the metering pump body is as follows: first remove the two symmetrical bolts I on the metering pump body, then align the lower surface of flange II and the upper surface of the metering pump body (that is, the vertical projection of the groove and the general cap coincide, and the central axes of through holes a, through holes b and through holes I coincide), and then connect flange II to the metering pump body through two bolts II (bolts II pass through through holes a, through holes b, and through holes I in turn, and are threadedly connected with through holes II), and then tighten bolts II to make flange II fit with the upper surface of the metering pump body; among them, the only difference between the two bolts II and the bolts I is that the screw of bolt II is longer; fitting is to measure the gap between flange II and the metering pump body with a feeler gauge with a thickness of 0.01 mm, and it is considered to be fitted if the feeler gauge cannot be inserted into the gap.

[0012] As described above, a coaxiality alignment device for the transmission shaft of a spinning metering pump is provided with n bolts III, where n is greater than or equal to 4; the motor base plate is in contact with the upper surface of the channel steel through the bolts III; the n bolts III are threadedly connected to the motor base plate to adjust the angle between the motor base plate and the upper surface of the channel steel (multiple bolts III cooperate with each other, and the angle between the motor base plate and the upper surface of the channel steel can be adjusted by adjusting the height of different bolts III); the angle steel and the motor base plate are detachably fixedly connected by bolts IV.

[0013] As described above, a coaxiality alignment device for the transmission shaft of a spinning metering pump, the coaxiality alignment device for the transmission shaft of the spinning metering pump also includes an alignment car, a hand hoist and a spring; the alignment car, the hand hoist and the spring are connected in sequence, and the alignment car is used to suspend the motor through the hand hoist and the spring to facilitate the movement of the motor when the coaxiality of the transmission shaft of the spinning metering pump is aligned. Specifically, the motor is first fixed on the motor base plate, the output shaft of the motor passes through the motor base plate, the output shaft of the motor is connected to the backrest wheel, the backrest wheel is connected to the alignment tool, and then the alignment car suspends the motor through the hand hoist and the spring. The alignment car facilitates large displacement of the motor, and the spring facilitates fine-tuning of the position of the motor when the motor is connected to the metering pump through the alignment tool.

[0014] As described above, a coaxiality alignment device for the transmission shaft of a spinning metering pump has notches of two channel steels facing each other, and a positioning hole is provided on the vertical surface of one of the channel steels; a horizontally placed positioning pin is provided on the alignment car; the positioning hole and the positioning pin are matched with each other in a concave and convex manner, and are used to position the alignment car, so that the motor, motor base plate, backrest wheel and alignment tool suspended on the alignment car can be quickly hung directly above the metering pump.

[0015] Beneficial effects:

[0016] The utility model provides a coaxiality alignment device for the transmission shaft of a spinning metering pump, which is convenient for alignment and can achieve rapid alignment. The alignment device of the utility model is mainly used to calibrate the accuracy of the alignment tool and the metering pump, and the calibration is performed by adjusting the position and angle of the motor base plate. During the correction process, the alignment tool will not have excessive friction with other devices. The alignment tool itself has a simple structure, and its components are fixedly connected, and no friction will occur, so there is no wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A stereoscopic view of an alignment tool in a coaxial alignment device for a spinning metering pump drive shaft;

[0018] Figure 2 Schematic diagram of the three-dimensional structure of flange II;

[0019] Figure 3 This is a structural diagram of the flange II installation of a coaxial alignment device for a spinning metering pump drive shaft;

[0020] Figure 4 This is a structural diagram of the flange I installation of a coaxial alignment device for a spinning metering pump drive shaft;

[0021] Figure 5 Prepare the calibration installation drawing for the coaxial alignment device of the spinning metering pump drive shaft;

[0022] Figure 6 This is the preparation and correction installation drawing for the concave-convex fit between the locating hole and the locating pin of the coaxiality alignment device of the spinning metering pump drive shaft;

[0023] Figure 7 This is a diagram showing the calibration and installation of a coaxial alignment device for a spinning metering pump drive shaft.

[0024] Figure 8 This is the position relationship diagram of the motor base plate, angle steel and channel steel;

[0025] Figure 9 This is the installation structure diagram of the transmission shaft I and transmission shaft II;

[0026] Among them, 1-motor, 2-motor base plate, 3-bolt III, 4-channel steel, 5-general cap, 6-metering pump, 7-drive shaft I, 8-drive shaft II, 9-angle steel, 10-flange I, 11-flange II, 12-long rod, 13-backrest wheel, 14-through hole I, 15-through hole II, 16-through hole a, 17-through hole b, 18-groove, 19-bolt I, 20-bolt II, 21-bolt IV, 22-aligning car, 23-hand hoist, 24-spring, 25-locating hole, 26-locating pin, 27-metering pump transition plate, 28-spinning box, 29-safety pin. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should also be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined by the appended claims.

[0028] like Figures 3 to 8 As shown, a metering pump 6 is fixed on the spinning box 28, and the metering pump 6 includes a metering pump transition plate 27, a metering pump body and a general cap 5; the upper surface of the metering pump body is parallel to the horizontal plane; the general cap 5 is fixed to the upper surface of the metering pump body, and the metering pump transition plate is located below the metering pump body; a vertical through hole I14 is provided on the metering pump body, and a vertical through hole II is provided on the metering pump transition plate 27, and a bolt I19 is inserted into the through hole I14 and threadedly connected with the through hole II 15; two parallel channel steels 4 are fixed above the metering pump 6, and the notches of the two channel steels 4 are opposite, and a positioning hole 25 is provided on the vertical surface of one of the channel steels 4; the channel steels 4 are connected by two angle steels 9, and the channel steels 4 are used to provide support for the motor base plate 2, and the angle steel 9 is used to detachably fix the motor base plate 2; n bolts III 3 are provided on the motor base plate 2, and n is greater than or equal to 4; the motor base plate 2 is in contact with the upper surface of the channel steel 4 through the bolts III 3; n bolts III 3 is threadedly connected to the motor base plate 2 and is used to adjust the angle between the motor base plate 2 and the upper surface of the channel steel 4; the motor base plate 2 is used to provide support for the motor 1 and is detachably fixed to the motor 1.

[0029] A device for aligning the drive shaft coaxiality of a spinning metering pump is provided. The device is used to adjust the coaxiality of a drive shaft I 7 and a drive shaft II 8 so that both the axial deviation and the radial deviation are 0. The drive shaft I 7 is connected to the motor output shaft via a backrest wheel 13. The drive shaft II 8 is connected to the center of the general cap 5 of the metering pump 6. Figures 1 to 9 As shown, the coaxiality alignment device for the transmission shaft of the spinning metering pump includes an alignment tool, an alignment vehicle 22, a hand chain hoist 23 and a spring 24;

[0030] A horizontally placed positioning pin 26 is provided on the alignment vehicle 22; the positioning hole 25 and the positioning pin 26 are matched with each other in a concave-convex manner to position the alignment vehicle 22;

[0031] The aligning car 22, the hand chain hoist 23 and the spring 24 are connected in sequence, and the aligning car 22 is used to suspend the motor 1 through the hand chain hoist 23 and the spring 24;

[0032] The alignment tool includes a long rod 12, one end of the long rod 12 is fixedly connected to the flange I10, and the other end of the long rod 12 is fixedly connected to the flange II 11; the axial deviation and radial deviation of the flange I10 and the flange II 11 are both 0; the central axis of the long rod 12 coincides with the central axis of the flange I10 and the flange II 11; the flange I10 is used to cooperate with the backrest wheel 13, so that the axial deviation and radial deviation of the flange I10 and the backrest wheel 13 are both 0; the flange II 11 is cooperated with the upper surface of the metering pump body, so that the axial deviation and radial deviation of the flange II 11 and the upper surface of the metering pump body are both 0; the exposed length of the drive shaft I 7 when connected to the backrest wheel 13 is recorded as a, and the exposed length of the drive shaft II 8 when connected to the general cap 5 of the metering pump 6 is recorded as b, and the sum of a and b is less than the length of the alignment tool; when the flange I10 is cooperated with the backrest wheel 13, and the flange II When 11 is connected with the upper surface of the metering pump body, the center axis of the long rod 12 passes through the center of the backrest wheel 13 and the center of the general cap 5 at the same time;

[0033] Flange II 11 is a cylindrical structure; along the direction of the central axis of flange II 11, flange II is provided with stepped through holes; the number of stepped through holes is the same as the number of through holes I14; the stepped through holes are composed of through hole a 16 and through hole b 17, and through hole a16 is located above through hole b 17; the inner diameter of through hole a 16 is the same as the diameter of the screw rod of bolt I19, the inner diameter of through hole b 17 is the same as the diameter of the bolt head of bolt I19, and the height of through hole b 17 is the same as the height of the bolt head; along the direction of the central axis of flange II 11, the lower surface of flange II 11 is provided with a groove 18, and the size of the groove 18 is matched with the size of the general cap 5; when flange II 11 is matched with the upper surface of the metering pump body, the vertical projection of the groove 18 coincides with the general cap 5, and the central axes of through hole a 16, through hole b 17 and through hole I14 coincide.

[0034] Specific usage process: first fix the motor 1 on the motor base plate 2, and the output shaft of the motor 1 passes through the motor base plate 2, and the output shaft of the motor 1 is connected to the backrest wheel 13, then unfix the angle steel 9 and the motor base plate 2, and then connect the flange I10 of the alignment tool with the flange of the backrest wheel 13 to ensure that the axial deviation and radial deviation between the two flanges are both 0; move the position of the motor 1 (moving the motor 1 drives the movement of the motor base plate 2), align the flange II 11 of the alignment tool with the upper surface of the metering pump 6, and then connect it with the upper surface of the metering pump 6 to make the axial deviation and radial deviation of the two 0, and then, under the premise of maintaining the horizontal position of the motor base plate 2 and the angle between the motor base plate 2 and the upper surface of the channel steel 4, fix the angle steel 9 to the motor base plate 2 (when the flange II 11 is connected with the general cap 5, in order to make the radial deviation of the two 0, it is necessary to adjust the horizontal position of the motor base plate 2; flange II 11 is connected with the general cap 5 so that the axial deviation of the two is 0. It is necessary to adjust the angle between the motor base plate 2 and the upper surface of the channel steel 4. Finally, the motor 1 and the alignment tool are removed. The transmission shaft I 7 is replaced on the motor 1, and the metering pump 6 is installed with the transmission shaft II 8. The motor 1 is connected to the adjusted motor base plate 2. At this time, the axial deviation and radial deviation of the two transmission shafts are both 0, thereby completing the alignment process. After that, the two transmission shafts are connected by the safety pin 29 and are ready for production use.

[0035] Among them, the specific process of fitting and connecting the flange II 11 and the upper surface of the metering pump body is as follows: first remove the two symmetrical bolts I19 on the metering pump body, then align the lower surface of the flange II 11 with the upper surface of the metering pump body (that is, the vertical projection of the groove 18 coincides with the general cap 5, and the central axes of the through hole a 16, through hole b 17 and through hole I14 coincide), then connect the flange II 11 to the metering pump body through two bolts II 20 (the bolts II 20 pass through the through hole a 16, through hole b 17, through hole I14 in sequence, and are threadedly connected with the through hole II 15), and then tighten the bolts II 20 to make the flange II 11 fit with the upper surface of the metering pump body; among them, the only difference between the two bolts II 20 and the bolts I19 is that the screw of the bolt II 20 is longer; fitting is to measure the gap between the flange II 11 and the metering pump body with a feeler gauge with a thickness of 0.01 mm, and it is considered to be fitted if the feeler gauge cannot be inserted into the gap.

Claims

1. A coaxiality alignment device for a spinning metering pump transmission shaft, which is used to adjust the coaxiality of a transmission shaft I and a transmission shaft II so that both the axial deviation and the radial deviation are 0. The transmission shaft I is connected to the motor output shaft via a backrest wheel, and the transmission shaft II is connected to the center of the general cap of the metering pump; the metering pump is fixed on the spinning box, and two parallel channel steels are fixed above the metering pump, and the channel steels are connected by two angle steels, the channel steels are used to provide support for the motor base plate, and the angle steels are used to fix the motor base plate and are detachably fixed to the motor base plate; the motor base plate is used to provide support for the motor and is detachably fixed to the motor; it is characterized in that The coaxiality alignment device of the spinning metering pump drive shaft includes an alignment tool, which includes a long rod; one end of the long rod is fixedly connected to flange I, and the other end of the long rod is fixedly connected to flange II; the axial deviation and radial deviation of flange I and flange II are both 0; the center axis of the long rod coincides with the center axes of flange I and flange II; flange I is used to cooperate with the backrest wheel, so that the axial deviation and radial deviation of flange I and the backrest wheel are both 0; flange II is used to cooperate with the upper surface of the metering pump body, so that the axial deviation and radial deviation of flange II and the upper surface of the metering pump body are both 0; the exposed length of the drive shaft I when connected to the backrest wheel is recorded as a, and the exposed length of the drive shaft II when connected to the general cap of the metering pump is recorded as b, and the sum of a and b is less than the length of the alignment tool; when flange I is cooperated with the backrest wheel and flange II is cooperated with the upper surface of the metering pump body, the center axis of the long rod passes through the center of the backrest wheel and the center of the general cap at the same time.

2. The coaxiality alignment device for the transmission shaft of a spinning metering pump according to claim 1, characterized in that: The metering pump includes a metering pump transition plate, a metering pump body and a general cap; the upper surface of the metering pump body is parallel to the horizontal plane; the general cap is fixed to the upper surface of the metering pump body, and the metering pump transition plate is located below the metering pump body; a vertical through hole I is provided on the metering pump body, and a vertical through hole II is provided on the metering pump transition plate; a bolt I is inserted into the through hole I and is threadedly connected with the through hole II; the flange II is a cylindrical structure; along the direction of the central axis of the flange II, the flange II is provided with stepped through holes; the number of stepped through holes is the same as the number of through holes I ; The stepped through hole consists of through hole a and through hole b, and through hole a is located above through hole b; the inner diameter of through hole a is the same as the diameter of the screw rod of bolt I, the inner diameter of through hole b is the same as the diameter of the bolt head of bolt I, and the height of through hole b is the same as the height of the bolt head; along the direction of the central axis of flange II, a groove is provided on the lower surface of flange II, and the size of the groove is matched with the size of the general cap; when flange II is matched with the upper surface of the metering pump body, the vertical projection of the groove coincides with the general cap, and the central axes of through holes a, through holes b and through hole I coincide.

3. The coaxiality alignment device for the transmission shaft of a spinning metering pump according to claim 1, characterized in that: The motor base plate is provided with n bolts III, where n is greater than or equal to 4; the motor base plate contacts the upper surface of the channel steel through the bolts III; the n bolts III are threadedly connected to the motor base plate to adjust the angle between the motor base plate and the upper surface of the channel steel; the angle steel and the motor base plate are detachably fixedly connected by bolts IV.

4. The coaxiality alignment device for a spinning metering pump transmission shaft according to claim 1, characterized in that: The coaxiality alignment device of the spinning metering pump transmission shaft also includes an alignment car, a hand chain hoist and a spring; the alignment car, the hand chain hoist and the spring are connected in sequence, and the alignment car is used to suspend the motor through the hand chain hoist and the spring.

5. The coaxiality alignment device for the transmission shaft of a spinning metering pump according to claim 1, characterized in that: The notches of the two channel steels are opposite to each other, and a positioning hole is provided on the vertical surface of one of the channel steels; a horizontally placed positioning pin is provided on the aligning car; the positioning hole and the positioning pin are matched with each other in a concave and convex manner to position the aligning car.

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