Driving device for ice cream machine

Abstract

The utility model relates to an ice cream machine, and provides a driving device for an ice cream machine, which comprises a motor controller, a permanent magnet alternating current servo motor, a gearbox and a vibration damper, an output main shaft of the permanent magnet alternating current servo motor is connected with a driving wheel of the gearbox to drive a driven wheel of the gearbox to rotate so as to drive an ice cream machine charging barrel stirrer connected with a driven shaft on the driven wheel to rotate, and the vibration damper comprises a motor body vibration damper and a gearbox vibration damper; the motor body damping device and the gearbox damping device are arranged on the permanent magnet alternating current servo motor and the gearbox respectively. The utility model solves the problems of low transmission efficiency, high energy consumption, loud noise and unstable operation of the conventional ice cream machine which adopts an asynchronous motor as a driving device through belt transmission speed reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of control systems, in particular to a driving device for an ice cream machine. Background Art

[0002] The speed of the ice cream machine barrel agitator is generally around 150r / min. Figure 1 As shown, the ice cream machine manufacturing industry currently adopts the traditional speed change scheme, which is to reduce the speed of the asynchronous motor through the belt drive and then change the speed through the gearbox to get the appropriate speed. This speed change scheme has the following shortcomings:

[0003] 1. The asynchronous motor has low efficiency, and it is decelerated by belt drive and then changed speed by gearbox, which results in low transmission efficiency and high energy consumption;

[0004] 2. The motor is decelerated by belt drive and then changed speed by gearbox. The structure is not compact and occupies a large space, which increases the volume of the ice cream machine and the cost.

[0005] 3. The asynchronous motor has a large starting current, which has a great impact on the power grid and will cause other electrical equipment to malfunction;

[0006] 4. The asynchronous motor has a small starting torque, and when the grid voltage fluctuates, it will cause motor failure;

[0007] 5. The moment the asynchronous motor starts, the vibration and noise of the ice cream machine will increase and the operation will be unstable. Utility Model Content

[0008] Therefore, in view of the above problems, the utility model proposes a driving device for an ice cream machine which has high transmission efficiency, compact structure, saves space, saves the manufacturing cost of the entire ice cream machine, and runs smoothly.

[0009] To solve this technical problem, the utility model adopts the following solution: A driving device for an ice cream machine, comprising a motor controller, a permanent magnet AC servo motor, a gearbox and a vibration reduction device, wherein the motor controller output is connected to and controls the permanent magnet AC servo motor, the output spindle of the permanent magnet AC servo motor is connected to the driving wheel of the gearbox to drive the driven wheel of the gearbox to rotate and then drive the ice cream machine barrel agitator connected to the driven shaft on the driven wheel to rotate, the vibration reduction device comprises a motor body vibration reduction device and a gearbox vibration reduction device, and the motor body vibration reduction device and the gearbox vibration reduction device are respectively arranged on the permanent magnet AC servo motor and the gearbox.

[0010] As a further improvement, the motor controller is a three-phase AC variable frequency motor controller.

[0011] As a further improvement, the rotor of the permanent magnet AC servo motor is a rare earth permanent magnet rotor.

[0012] A further improvement is that the motor body vibration reduction device includes at least one first vibration reduction mechanism, the first vibration reduction mechanism includes a fastening bolt, two nuts and a rubber body, the rubber body is sleeved on the fastening bolt, the two nuts are respectively locked at both ends of the fastening bolt, and one end of the fastening bolt of each first vibration reduction mechanism is fixed to the permanent magnet AC servo motor casing through the nut.

[0013] A further improvement is that the gearbox vibration damping device includes at least one second vibration damping mechanism, the second vibration damping mechanism includes a fastening bolt, a nut, a gasket, a limit pin and a rubber body, the limit pin is sleeved on the fastening bolt, the rubber body is sleeved on the limit pin, and one end of the fastening bolt of each second vibration damping mechanism is fixed to the gearbox case through a nut and a gasket.

[0014] A further improvement is that the gearbox is a dual-axis gearbox, which includes three helical gears arranged side by side and meshing with each other, and two driven shafts respectively arranged on the two helical gears on both sides. The output main shaft of the permanent magnet AC servo motor is connected to the helical gear in the middle to drive the helical gear to rotate and then drive the helical gears on both sides to rotate. The two driven shafts are connected to the dual-axis ice cream machine barrel agitator to drive the dual-axis ice cream machine barrel agitator to rotate.

[0015] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: the permanent magnet AC servo motor is directly driven by the motor controller, and the motor controller can send the obtained current signal to the ice cream machine controller, so that the ice cream machine controller analyzes the hardness of the ice cream according to the current signal, and instructs the motor controller to change the frequency of the output power supply to change the speed of the permanent magnet AC servo motor, so that the ice cream machine barrel agitator obtains the most efficient operating speed, achieves energy saving, and realizes intelligence; at the same time, the motor controller can set the starting time of the motor to reduce the starting current of the permanent magnet AC servo motor and reduce the impact force at the moment of starting, so as to achieve stable operation of the motor; the output spindle of the permanent magnet AC servo motor is directly connected to the gearbox, so that the transmission efficiency is high, the structure is compact, and space is saved, and the manufacturing cost of the ice cream machine is saved; the motor body vibration reduction device and the gearbox vibration reduction device are set to effectively weaken the vibration generated by the permanent magnet AC servo motor and the gearbox, thereby reducing the vibration and noise of the ice cream machine, and the permanent magnet AC servo motor using a rare earth permanent magnet rotor has high motor efficiency and can be widely promoted and applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the industry's traditional speed change scheme;

[0017] Figure 2 It is a structural schematic diagram of the first embodiment of the utility model;

[0018] Figure 3This is a partial structural diagram of the first embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the partial structure of the gearbox in the first embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the motor body vibration reduction device of the first embodiment of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of a gearbox vibration reduction device according to a first embodiment of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the second embodiment of the utility model;

[0023] Figure 8 It is a partial structural schematic diagram of the second embodiment of the utility model. DETAILED DESCRIPTION

[0024] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods. Example

[0025] refer to Figure 1-Figure 6 The preferred driving device for an ice cream machine of the utility model comprises a motor controller 1, a permanent magnet AC servo motor 2, a gearbox 3 and a vibration reduction device, wherein the motor controller 1 is a three-phase AC variable frequency motor controller, the rotor of the permanent magnet AC servo motor 2 is a rare earth permanent magnet rotor, the output of the motor controller 1 is connected to and controls the permanent magnet AC servo motor 2, the output spindle 21 of the permanent magnet AC servo motor 2 is connected to the driving wheel 31 of the gearbox 3 to drive the driven wheel 32 of the gearbox 3 to rotate, and then drive the ice cream machine barrel agitator connected to the driven shaft 321 on the driven wheel 32 to rotate, and the vibration reduction device comprises a motor body vibration reduction device 4 and a gearbox vibration reduction device 5, and the motor body vibration reduction device 4 and the gearbox vibration reduction device 5 are respectively arranged on the permanent magnet AC servo motor 2 and the gearbox 3.

[0026] The motor body vibration reduction device 4 includes two first vibration reduction mechanisms, which include a fastening bolt 41, two nuts 42 and a rubber body 43. The rubber body 43 is sleeved on the fastening bolt 41, and the two nuts 42 are respectively locked at both ends of the fastening bolt 41. One end of the fastening bolt 41 of each first vibration reduction mechanism is fixed to the housing of the permanent magnet AC servo motor 2 through the nut 42.

[0027] The gearbox damping device 5 includes four second damping mechanisms, which include fastening bolts 51, nuts 52, washers 53, limit pins 54 and rubber bodies 55. The limit pins 54 are sleeved on the fastening bolts 51, and the rubber bodies 55 are sleeved on the limit pins 54. One end of the fastening bolts 51 of each second damping mechanism is fixed to the gearbox 3 housing through the nuts 52 and washers 53. Example

[0028] refer to Figure 7 and Figure 8 , wherein the structures of the motor controller 1', the permanent magnet AC servo motor 2' and the vibration reduction device are the same as those of the first embodiment, except that the gearbox 3' is a double-shaft gearbox, which includes three helical gears 31', 32', 33' arranged side by side and meshing with each other, and two driven shafts 321', 331' respectively arranged on the two helical gears 32', 33' on both sides, the output main shaft of the permanent magnet AC servo motor 2' is connected to the helical gear 31' located in the middle to drive the helical gear 31' to rotate and then drive the helical gears 32', 33' on both sides to rotate, and the two driven shafts 321', 331' are connected to the double-shaft ice cream machine barrel agitator to drive the double-shaft ice cream machine barrel agitator to rotate.

[0029] In the above embodiment, the gearbox can be set to single-axis or double-axis as needed, the number of first vibration reduction mechanisms of the motor body vibration reduction device can be increased or decreased according to the different vibration reduction requirements of the permanent magnet AC servo motor, and the second vibration reduction mechanism of the gearbox vibration reduction device can be increased or decreased according to the different vibration reduction requirements of the gearbox.

[0030] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A driving device for an ice cream machine, comprising a motor controller, a permanent magnet AC servo motor, a gearbox and a vibration reduction device, characterized in that: The motor controller output is connected to and controls the permanent magnet AC servo motor, the output main shaft of the permanent magnet AC servo motor is connected to the driving wheel of the gearbox to drive the driven wheel of the gearbox to rotate, and then drives the ice cream machine barrel agitator connected to the driven shaft on the driven wheel to rotate, and the vibration reduction device includes a motor body vibration reduction device and a gearbox vibration reduction device, and the motor body vibration reduction device and the gearbox vibration reduction device are respectively arranged on the permanent magnet AC servo motor and the gearbox.

2. The driving device for an ice cream machine according to claim 1, characterized in that: The motor controller is a three-phase AC variable frequency motor controller.

3. The driving device for an ice cream machine according to claim 1, characterized in that: The rotor of the permanent magnet AC servo motor is a rare earth permanent magnet rotor.

4. The driving device for an ice cream machine according to claim 1, characterized in that: The motor body vibration reduction device includes at least one first vibration reduction mechanism, which includes a fastening bolt, two nuts and a rubber body. The rubber body is sleeved on the fastening bolt, and the two nuts are respectively locked at both ends of the fastening bolt. One end of the fastening bolt of each first vibration reduction mechanism is fixed to the permanent magnet AC servo motor casing through the nut.

5. The driving device for an ice cream machine according to claim 1, characterized in that: The gearbox vibration damping device includes at least one second vibration damping mechanism, which includes a fastening bolt, a nut, a gasket, a limit pin and a rubber body. The limit pin is sleeved on the fastening bolt, and the rubber body is sleeved on the limit pin. One end of the fastening bolt of each second vibration damping mechanism is fixed to the gearbox case through a nut and a gasket.

6. The driving device for an ice cream machine according to claim 1, characterized in that: The gearbox is a dual-axis gearbox, which includes three helical gears arranged side by side and meshing with each other, and two driven shafts respectively arranged on the two helical gears on both sides. The output main shaft of the permanent magnet AC servo motor is connected to the helical gear in the middle to drive the helical gear to rotate and then drive the helical gears on both sides to rotate. The two driven shafts are connected to the dual-axis ice cream machine barrel agitator to drive the dual-axis ice cream machine barrel agitator to rotate.

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