A reverse excitation type vibration stirring cylinder

Abstract

A reverse excitation type vibration stirring cylinder, comprising a base and a stirring cylinder, a stirring drive mechanism and a vibration drive mechanism arranged on the base. A stirring shaft is provided in the stirring cylinder, and both ends of the stirring shaft are respectively connected with the stirring drive mechanism and the vibration drive mechanism. The stirring mechanism includes a stirring motor, a speed reducer, a gear box and a bearing sleeve. The stirring motor is connected with the speed reducer. An elastic coupling is provided at the output end of the speed reduction motor, and a connecting shaft is provided at the other end of the elastic coupling. The connecting shaft is connected with the stirring shaft through the gear box. The vibration drive mechanism includes a vibration motor, a bearing box, a rotating shaft and a vibrator. The rotating shaft is penetrated in the bearing seat, one end of the rotating shaft is connected with the vibrator, the other end of the vibrator is connected with the stirring shaft, and a pulley is provided at the other end of the rotating shaft. A pulley is also provided on the output shaft of the vibration motor. The two pulleys are connected by belt drive. The rotating direction of the vibration motor is opposite to that of the stirring motor, so as to reduce the loss of the output power of the vibration motor.

Description

Technical Field

[0001] The present invention belongs to the stirring technical field of mixing equipment, and particularly relates to a reverse excitation type vibration stirring cylinder. Background Art

[0002] With the increasing traffic volume and vehicle load, higher requirements are imposed on the overall strength and flatness of roads. Stirring is an important process in the production process of mixtures, directly affecting the quality of mixtures. Vibration stirring is a main form in the stirring field. In particular, shaft vibration stirring has obvious advantages compared with the traditional stirring mode. It can not only shorten the stirring time, but also improve the stirring uniformity. The existing vibration stirring is to connect one end of the stirring shaft with a rotating motor and the other end with a vibrator to generate a vibration acting force, so that the stirring shaft rotates around its own axis while revolving. And the rotation speeds of the stirring shaft around its own axis and revolving are about 100 r / m and about 1500 r / m respectively. Since both ends of the bearing seat are connected to the stirring shaft and the stirring motor through bearings, and the rotation directions of the stirring motor and the vibration motor in the existing vibration mixers on the market are the same, the stirring shaft and the vibration shaft will rotate synchronously. Since the rotation speed of the vibration shaft is faster than that of the stirring shaft, a dragging effect will be brought to the vibration shaft, which causes a loss of nearly 100 r / m when rotating at the high-speed end, thus affecting the output power of the vibration motor, increasing the current of the vibration motor, and being prone to tripping, and unable to work for a long time. At the same time, the vibration shaft dragging the stirring shaft to rotate is also likely to cause the temperature of the bearing to rise, affecting the service life of the bearing. Summary of the Invention

[0003] In view of the above problems, the present invention discloses a reverse excitation type vibration stirring cylinder, by adjusting the rotation direction of the vibration motor to be opposite to that of the stirring motor, so that the output power of the vibration motor is maximized and the current of the vibration motor is ensured to be in a stable state.

[0004] The specific technical solutions are as follows:

[0005] A reverse excitation type vibration stirring cylinder, comprising a base and a stirring cylinder, a stirring drive mechanism and a vibration drive mechanism arranged on the base. A stirring shaft is arranged in the stirring cylinder, and both ends of the stirring shaft penetrate through both ends of the stirring cylinder. One end of the stirring shaft is in transmission connection with the stirring drive mechanism, and the other end is in transmission connection with the vibration drive mechanism; the stirring mechanism includes a stirring motor, a speed reducer, a gear box and a bearing sleeve. The stirring motor is in transmission connection with the speed reducer. An elastic coupling is arranged at the output end of the speed reduction motor, and a connecting shaft is arranged at the other end of the elastic coupling. The connecting shaft is in transmission connection with the shaft end of the stirring shaft through the gear box, and the stirring shaft is rotatably arranged in the bearing sleeve. The upper end of the bearing sleeve is fixedly arranged on the side wall of the stirring cylinder; the vibration drive mechanism includes a vibration motor, a bearing box, a rotating shaft and a vibrator. The rotating shaft penetrates through the bearing seat. One end of the rotating shaft is connected with the vibrator, the other end of the vibrator is connected with the shaft end of the stirring shaft, and a belt pulley is arranged at the other end of the rotating shaft. A belt pulley is also arranged on the output shaft of the vibration motor, and the two belt pulleys are in transmission connection through a belt. The rotation direction of the vibration motor is opposite to that of the stirring motor, so that the vibration motor drives the stirring shaft to revolve in a direction opposite to the rotation direction of the stirring shaft through the vibrator.

[0006] Further, the vibrator includes a connecting sleeve, a fixing sleeve and a vibration bearing. The fixing sleeve is of a cylindrical structure, and one end of the connecting shaft is eccentrically arranged on the fixing sleeve. The connecting sleeve is of a hollow cylindrical structure. One end of the connecting sleeve is fixedly connected with the shaft end of the stirring shaft, and the other end of the connecting sleeve is open. The vibration bearing is fixedly arranged in the inner cavity of the connecting sleeve, and the fixing sleeve is arranged and connected with the inner ring of the vibration bearing by passing through the open end of the connecting sleeve.

[0007] Further, a flange sleeve is arranged at one end of the stirring shaft, and the stirring shaft is fixedly connected with the connecting sleeve through the flange sleeve.

[0008] Further, the flange sleeve is fixedly arranged at the center of one end of the connecting sleeve through bolts.

[0009] Further, a frequency conversion control mechanism is also included. The frequency conversion control mechanism includes a PLC controller and a frequency converter. The frequency conversion control device includes a PLC controller and a frequency converter. The output end of the PLC controller is electrically connected with the input end of the frequency converter, and the output end of the frequency converter is electrically connected with the input end of the vibration motor.

[0010] Further, the vibration bearing is in full filling fit with the inner cavity of the connecting sleeve, so that the outer ring of the vibration bearing is attached to the inner wall of the connecting sleeve.

[0011] Further, the vibration bearing is arranged at the center of the inner cavity of the connecting sleeve.

[0012] The beneficial effects of the present invention are as follows:

[0013] (1) Compared with the existing vibration mixer, the present invention adjusts the rotation direction of the vibration motor to be opposite to that of the stirring motor, so that the rotation direction of the rotating shaft at the high-speed end is opposite to that of the stirring shaft at the low-speed end, effectively reducing the power loss of the vibration motor output, thus ensuring the maximization of the vibration motor output power, and keeping the current of the stirring motor in a stable state, avoiding the problem of motor tripping.

[0014] (2) Since the rotation directions of the rotating shaft and the stirring shaft are opposite in the present invention, the rotation speed of the rotating shaft and the rotation speed of the stirring shaft are superimposed, and the rotating shaft will not generate a dragging effect on the stirring shaft through the vibrator, thereby reducing the friction between the rotating shaft and the vibration bearing, avoiding the generation of high temperature of the vibration bearing, reducing the wear of the vibration bearing, and prolonging its service life.

[0015] (3) The present invention controls the frequency converter through the controller to adjust the rotation speed of the vibration motor and reduce the rotation speed of the rotating shaft, thereby adjusting the vibration force of the vibrator, enabling the stirring shaft to adapt to the mixing of mixtures with different viscosities, and having high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention.

[0017] Figure 2 It is a top view of the present invention.

[0018] Figure 3 It is a left view of the present invention.

[0019] Figure 4 It is a cross-sectional view of the vibrator of the present invention.

[0020] DESCRIPTION OF THE REFERENCE NUMERALS

[0021] Base 1, mixing cylinder 2, mixing shaft 21, flange sleeve 211, mixing drive mechanism 3, mixing motor 31, speed reducer 32, elastic coupling 33, gear box 34, bearing sleeve 35, connecting shaft 36, vibration drive mechanism 4, vibration motor 41, pulley 411, belt 412, bearing box 42, rotating shaft 43, vibrator 44, connecting sleeve 441, fixed sleeve 442, vibration bearing 443, frequency conversion control mechanism 5, PLC controller 51, frequency converter 52. DETAILED DESCRIPTION OF THE INVENTION

[0022] To make the technical solution of the present invention clearer and more definite, the present invention will be further described below with reference to the accompanying drawings. Any solution obtained by equivalent replacement of the technical features of the technical solution of the present invention and through conventional reasoning falls within the protection scope of the present invention. The fixed connection and fixed setting mentioned in the present invention are all common connection methods in the mechanical field, and welding, bolt-nut connection, and screw connection are all applicable.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0024] The frequency converter model adopted in the present invention is Xilin SD-100-18.5, purchased from Chongxin Yichenxing Trading Co., Ltd., which is prior art and will not be elaborated herein.

[0025] A reverse excitation type vibration stirring cylinder, comprising a base, a stirring cylinder arranged on the base, a stirring drive mechanism and a vibration drive mechanism. A stirring shaft is arranged in the stirring cylinder. Both ends of the stirring shaft penetrate through both ends of the stirring cylinder and are respectively in transmission connection with the stirring drive mechanism and the vibration drive mechanism. The stirring mechanism includes a stirring motor, a speed reducer, a gear box and a bearing sleeve. The stirring motor is in transmission connection with the speed reducer, and the rotational speed of the output end of the speed reduction motor is about 100 r / min. An elastic coupling is arranged at the output end of the speed reduction motor. The other end of the elastic coupling is connected with a connecting shaft. The connecting shaft is in transmission connection with the shaft end of the stirring shaft through the gear box, so that the stirring motor drives the stirring shaft to rotate through the speed reducer and the gear box. The stirring shaft is rotatably arranged in the bearing sleeve, and the upper end of the bearing sleeve is fixedly arranged on the side wall of the stirring cylinder. The vibration drive mechanism includes a vibration motor, a bearing box, a rotating shaft and a vibrator. The rotating shaft penetrates through the bearing seat. One end of the rotating shaft is connected with the vibrator, the other end of the vibrator is connected with the shaft end of the stirring shaft, and a pulley is arranged at the other end of the rotating shaft. A pulley is also arranged on the output shaft of the vibration motor. The two pulleys are in transmission connection through a belt. The rotational speed of the output shaft of the vibration motor is about 1500 r / min, so that the vibration motor drives the rotating shaft to rotate at a high speed through the belt and the pulley, and the rotating shaft drives the stirring shaft to revolve through the vibrator. The rotating direction of the vibration motor is opposite to that of the stirring motor, so that the revolution direction of the stirring shaft driven by the vibration motor through the vibrator is opposite to the rotation direction of the stirring shaft, so that the rotational speed of the rotating shaft is superimposed on the rotational speed of the stirring shaft. At this time, the relative rotational speed between the inner ring and the outer ring of the bearing reaches about 1600 r / min, so that the rotating shaft will not drag the stirring shaft through the vibrator.

[0026] Further, the vibrator includes a connecting sleeve, a fixed sleeve and a vibration bearing. The fixed sleeve has a cylindrical structure, and one end of the connecting shaft is eccentrically arranged on the fixed sleeve. The connecting sleeve has a hollow cylindrical structure. One end of the connecting sleeve is fixedly connected with the shaft end of the stirring shaft, the other end of the connecting sleeve is open, a vibration bearing is fixedly arranged in the inner cavity of the connecting sleeve, and the fixed sleeve is arranged to be connected with the inner ring of the vibration bearing by passing through the open end of the connecting sleeve.

[0027] Further, a flange sleeve is arranged at one end of the stirring shaft, and the stirring shaft is fixedly connected with the connecting sleeve through the flange sleeve.

[0028] Further, the flange sleeve is fixedly arranged at the center of one end of the connecting sleeve through bolts.

[0029] Further, it further includes a variable frequency control mechanism. The variable frequency control mechanism includes a PLC controller and an inverter. The variable frequency control device includes a PLC controller and an inverter. The output end of the PLC controller is electrically connected to the input end of the inverter, and the output end of the inverter is electrically connected to the input end of the vibration motor.

[0030] Further, the vibration bearing is in full filling fit with the inner cavity of the connecting sleeve, so that the outer ring of the vibration bearing is attached to the inner wall of the connecting sleeve.

[0031] Further, the vibration bearing is arranged at the center of the inner cavity of the connecting sleeve, so that the center of the fixed sleeve coincides with the center of the stirring shaft.

[0032] Working principle:

[0033] By adjusting the rotation direction of the vibration motor to be opposite to that of the stirring motor, the rotation direction of the rotating shaft at the high-speed end is opposite to that of the stirring shaft at the low-speed end, so that the rotation speeds of the rotating shaft and the stirring shaft are superimposed. At this time, the relative rotation speed between the inner ring and the outer ring of the bearing reaches 1600 r / min, and there will be no effect of the rotating shaft dragging the stirring shaft to rotate, avoiding the resistance of the stirring shaft to the rotation of the rotating shaft, making the output of the stirring motor not affected by the rotating shaft at the high-speed end, so that the output is more stable, and at the same time reducing the power loss of the vibration motor output. The controller controls the inverter to adjust the rotation speed of the vibration motor and reduces the rotation speed of the rotating shaft, thereby adjusting the vibration force of the vibrator.

[0034] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A reverse excitation vibration mixing cylinder, It is characterized in that It comprises a base and a stirring cylinder, a stirring drive mechanism and a vibration drive mechanism arranged on the base, wherein a stirring shaft is arranged in the stirring cylinder, two ends of the stirring shaft pass through the two ends of the stirring cylinder, one end of the stirring shaft is connected to the stirring drive mechanism in a transmission manner, and the other end is connected to the vibration drive mechanism in a transmission manner; the stirring drive mechanism comprises a stirring motor, a reducer, a gear box and a bearing sleeve, the stirring motor is connected to the reducer in a transmission manner, the output end of the reducer motor is connected to an elastic coupling, the other end of the elastic coupling is connected to a connecting shaft, the connecting shaft is connected to the shaft end of the stirring shaft through a gear box in a transmission manner, and the stirring shaft is rotatably arranged in the bearing sleeve, and the upper end of the bearing sleeve is fixedly arranged on the side wall of the stirring cylinder; the vibration drive mechanism comprises a vibration motor, a bearing box, a rotating shaft and a vibrator, the rotating shaft is arranged in the bearing box, one end of the rotating shaft is connected to the vibrator, the other end of the vibrator is connected to the shaft end of the stirring shaft, a pulley is arranged at the other end of the rotating shaft, a pulley is also arranged on the output shaft of the vibration motor, the two pulleys are connected by belt transmission, and the rotation direction of the vibration motor is opposite to that of the stirring motor; The vibrator comprises a connecting sleeve, a fixing sleeve and a vibration bearing, wherein the fixing sleeve is in a cylindrical structure, one end of the connecting shaft is eccentrically arranged on the fixing sleeve, the connecting sleeve is in a hollow cylindrical structure, one end of the connecting sleeve is fixedly connected to the shaft end of the stirring shaft, and the other end of the connecting sleeve is open, the vibration bearing is fixedly arranged in the inner cavity of the connecting sleeve, and the fixing sleeve is connected to the inner ring of the vibration bearing by passing through the open end of the connecting sleeve; It also includes a frequency conversion control mechanism, which includes a PLC controller and a frequency converter. The output end of the PLC controller is electrically connected to the input end of the frequency converter, and the output end of the frequency converter is electrically connected to the input end of the vibration motor.

2. A reverse excitation vibrating stirring cylinder as claimed in claim 1, It is characterized in that A flange sleeve is provided at one end of the stirring shaft, and the stirring shaft is fixedly connected to the connecting sleeve via the flange sleeve.

3. A reverse excitation vibrating stirring cylinder as claimed in claim 2, It is characterized in that The flange sleeve is fixed at the center of one end of the connecting sleeve by bolts.

4. A reverse excitation vibrating stirring cylinder as claimed in claim 1, It is characterized in that The vibration bearing is fully matched with the inner cavity of the connecting sleeve, so that the outer ring of the vibration bearing is closely arranged on the inner wall of the connecting sleeve.

5. A reverse excitation vibrating stirring cylinder as claimed in claim 1, It is characterized in that The vibration bearing is arranged at the center of the inner cavity of the connecting sleeve.

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