Air-cooled heat dissipation mobile base type permanent magnet speed regulator

Abstract

The utility model discloses a kind of mobile base type permanent magnet speed regulator of air-cooled heat dissipation, including motor, base, speed regulation mechanism and driving mechanism, motor is set on base;Base includes upper base, lower base and multiple linear guides, linear guide is symmetrically set on lower base, the slider of linear guide is connected with upper base;Speed regulation mechanism is connected with the motor shaft of motor, and heat sink and flow guide fan blade are set on speed regulation mechanism;Driving mechanism is set on lower base, and driving mechanism is connected with upper base. Advantage: linear guide is rolling friction, and small friction makes that wear is smaller, can prolong service life, the tolerance between each structure inside linear guide is small, the gap between each structure is small, upper base is not easy to produce shaking in other direction, can reduce the noise generated by vibration;Heat sink and flow guide fan blade are heat dissipated to speed regulation mechanism, avoid high temperature to influence the normal operation of device and service life.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet speed controller technology, specifically a mobile base-type permanent magnet speed controller with air cooling. Background Technology

[0002] Permanent magnet speed controllers, through the coupling of a conductor rotor and a permanent magnet rotor, can not only transmit torque but also block vibrations generated at the load end during operation. Permanent magnet speed controllers are widely used in industrial production. They achieve speed regulation by adjusting the air gap between the conductor rotor and the permanent magnet rotor. Current practices typically involve mounting the motor on a movable base, adjusting the motor's position via the base, and thus moving the conductor rotor to adjust the air gap. However, the movable base results in static friction in the moving parts, leading to wear. Severe wear intensifies motor vibration and amplifies noise. Furthermore, permanent magnet speed controllers lack a heat dissipation structure, generating heat at high speeds, causing localized overheating and disrupting normal production activities. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the existing base moves with static friction, which increases wear, amplifies vibration and generates more noise, and the permanent magnet speed controller lacks a relevant heat dissipation structure. Local high temperature will cause the device to malfunction and affect production activities. In order to solve the above problems, a mobile base type permanent magnet speed controller with air cooling is proposed, which includes a motor, a base, a speed regulation mechanism and a drive mechanism, with the motor mounted on the base. The base includes an upper base, a lower base, and multiple linear guide rails. The linear guide rails are symmetrically arranged on the lower base, and the sliders of the linear guide rails are connected to the upper base. The speed control mechanism is connected to the motor shaft of the motor, and heat sinks and guide fan blades are installed on the speed control mechanism; The drive mechanism is mounted on the lower base and is connected to the upper base.

[0004] The technical solution of this utility model, by setting multiple linear guides, which utilize rolling friction, significantly reduces wear and extends service life. Simultaneously, the small tolerances between the internal structures of the linear guides, combined with minimal wear, ensure that the gaps between the structures remain consistently small. This prevents the upper base from wobbling in other directions during movement, reducing vibration and thus noise. The inclusion of heat sinks and guide fan blades dissipates heat from the speed control mechanism, preventing high temperatures from affecting the normal operation and service life of the device. Furthermore, the structure of the drive mechanism, utilizing an external actuator, enables the drive mechanism to operate, thereby moving the upper base and adjusting the position of the motor.

[0005] In a preferred embodiment of the present invention, the side wall of the upper base is provided with a plurality of fasteners for connecting with the motor, and the lower surface of the upper base is provided with two mutually parallel limiting plates, the fasteners being used to fix the motor.

[0006] In a preferred embodiment of the present invention, the lower base is provided with a plurality of bases for mounting linear guide rails, and a limiting block is also provided on the lower base.

[0007] In a preferred embodiment of the present invention, the limiting block is disposed between two limiting plates. The limiting block is made of polyurethane. The limiting block and the limiting plates limit the maximum moving distance of the motor. Polyurethane is a non-rigid material and can play a certain buffering role.

[0008] In a preferred embodiment of the present invention, the side wall of the lower base is provided with scale lines, and the side wall of the upper base is provided with a pointer that cooperates with the scale lines. The pointer and the scale lines cooperate to read the distance moved by the motor.

[0009] In a preferred embodiment of the present invention, the side wall of the lower base is provided with a plurality of locking members for locking the upper base. The locking members are used to lock the upper base in special circumstances to prevent the upper base from shifting.

[0010] In a preferred embodiment of the present invention, the speed regulating mechanism includes a conductor rotor, a permanent magnet rotor, and a protective bracket. The conductor rotor and the permanent magnet rotor are coupled and are located inside the protective bracket. The conductor rotor is connected to the motor shaft of the motor, and the permanent magnet rotor is connected to the load shaft. Through the coupling of the conductor rotor and the permanent magnet rotor, torque is transmitted. The protective bracket is used to protect the normal rotation of the conductor rotor and the permanent magnet rotor and prevent them from being disturbed by external factors.

[0011] In a preferred embodiment of the present invention, the heat sink is arranged in a ring on the side wall of the conductor rotor. The heat sink is made of aluminum. The heat sink increases the heat dissipation area and improves the heat dissipation efficiency. Aluminum has a low density, which can reduce the weight of the heat sink and avoid interference with the copper ring in the conductor rotor.

[0012] In a preferred embodiment of the present invention, the guide fan blades are disposed on the end face of the conductor rotor, and the conductor rotor drives the guide fan blades to rotate, thereby increasing the airflow speed and improving the heat dissipation efficiency.

[0013] In a preferred embodiment of the present invention, the driving mechanism includes a connecting flange, a rotating shaft, a fixed bearing, a coupling, a lead screw, a moving block, and a supporting bearing. One end of the rotating shaft is connected to an external actuator via the connecting flange, and the other end of the rotating shaft is connected to the lead screw via the coupling. The moving block meshes with the lead screw and is connected to the upper base. The end of the rotating shaft near the lead screw is connected to the lower base via the fixed bearing, and both ends of the lead screw are connected to the lower base via supporting bearings. The driving mechanism is used to drive the upper base to move.

[0014] The advantages of this utility model compared with the prior art are: The technical solution of this utility model, by setting multiple linear guides, which utilize rolling friction, significantly reduces wear and extends service life. Simultaneously, the small tolerances between the internal structures of the linear guides, combined with minimal wear, ensure that the gaps between the structures remain consistently small. This prevents the upper base from wobbling in other directions during movement, reducing vibration and thus noise. The inclusion of heat sinks and guide fan blades dissipates heat from the speed control mechanism, preventing high temperatures from affecting the normal operation and service life of the device. Furthermore, the structure of the drive mechanism, utilizing an external actuator, enables the drive mechanism to operate, thereby moving the upper base and adjusting the position of the motor. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the base in this utility model; Figure 3 This is an exploded top view of the base structure in this utility model; Figure 4 This is an exploded bottom view of the base structure in this utility model; Figure 5 This is an exploded view of the speed regulating mechanism in this utility model; Figure 6 This is a three-dimensional schematic diagram of the drive mechanism in this utility model; Among them: 1-motor, 2-base, 21-upper base, 22-lower base, 23-linear guide rail, 24-base, 25-fixed component, 26-limiting block, 27-limiting plate, 28-locking component, 3-speed regulating mechanism, 31-conductor rotor, 32-permanent magnet rotor, 33-heat sink, 34-guide fan blade, 35-protective bracket, 4-drive mechanism, 41-connecting flange, 42-rotating shaft, 43-fixed bearing, 44-coupling, 45-lead screw, 46-moving block, 47-support bearing. Detailed Implementation

[0016] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model will be described in detail below. Example 1

[0017] like Figure 1-6 As shown, this utility model is a mobile base type permanent magnet speed regulator with air cooling and heat dissipation, including a motor 1, a base 2, a speed regulating mechanism 3 and a drive mechanism 4. The motor 1 is mounted on the base 2. The motor 1 is existing technology and is used to provide power.

[0018] The base 2 includes an upper base 21, a lower base 22, and multiple linear guide rails 23.

[0019] The upper base 21 is a flat plate, and multiple fasteners 25 are provided on the four sides of the upper base 21. The motor 1 and the upper base 21 are connected by the fasteners 25. In this embodiment, the fastener 25 includes a fixing plate and multiple bolts. The fixing plate is attached to both the side wall of the motor 1 and the upper base 21. The bolts pass through the fixing plate and are connected to the motor 1 and the upper base 21 respectively.

[0020] The lower base 22 is an open-top box, which is usually fixed to the cement base by expansion bolts.

[0021] Multiple bases 24 are fixed inside the lower base 22 by bolts. The bases 24 are fixed to the linear guide rail 23 by bolts. In this embodiment, the linear guide rail 23 is a roller type linear guide rail, which can be purchased directly from the market.

[0022] The linear guide 23 uses rolling friction, which reduces friction, wear, and energy loss, thereby reducing production costs. Furthermore, the linear guide 23 has high precision, achieving micron-level positioning accuracy, which also allows for high motor adjustment precision.

[0023] The tolerances of the internal structure of the linear guide 23 can be made very small, and due to the use of rolling friction, the friction loss during movement is also relatively small. Therefore, when the linear guide 23 is working, the gaps between the internal structures are small, which can reduce vibration and thus reduce noise.

[0024] The internal structure of the linear guide 23 includes a guide rail and a slider. The guide rail is connected to the base 24, and the slider is connected to the upper base 21 by bolts, so the upper base 21 can be displaced.

[0025] The lower surface of the upper base 21 is provided with two parallel limiting plates 27. The limiting plates 27 and the upper base 21 are an integral structure. The lower base 22 is fixedly installed with a limiting block 26 by bolts. The limiting block 26 is located between the two limiting plates 27. Through the cooperation of the two limiting plates 27 and the limiting block 26, the maximum movement distance of the upper base 21 can be limited to prevent excessive displacement and damage to other components.

[0026] The limiting block 26 is made of polyurethane. When the limiting plate 27 is attached to the limiting block 26, the limiting block 26 can undergo a certain deformation, thereby playing a buffering role.

[0027] The lower base 22 has a scale line engraved on one side surface, and a small pointer is fixed to the same side surface of the upper base 21 by bolts. The pointer and the scale line can be used to read the distance that the upper base 21 slides along the lower base 22.

[0028] Furthermore, the side wall of the lower base 22 is provided with multiple locking components 28. Each locking component 28 includes a locking plate and multiple bolts. The locking plate is in contact with both the upper base 21 and the lower base 22. The multiple bolts pass through the locking plate and are then connected to the upper base 21 and the lower base 22 respectively.

[0029] The locking element 28 works in two situations: when the base is being transported, to prevent displacement between the upper base 21 and the lower base 22, the locking element 28 is used to secure them tightly; when the speed regulating mechanism 3 of this device needs to be disassembled for maintenance, the motor shaft and the load shaft can be temporarily connected directly through the coupling to continue production activities and prevent production interruption and losses.

[0030] In both of the above cases, the purpose of using the locking element 28 is to prevent the upper base 21 from shifting. In other cases, the locking element 28 needs to be removed to facilitate the movement and adjustment of the upper base 21.

[0031] The speed regulating mechanism 3 includes a conductor rotor 31, a permanent magnet rotor 32, and a protective bracket 35. The conductor rotor 31 is connected to the motor shaft of the motor 1, and the permanent magnet rotor 32 is connected to the load shaft. The conductor rotor 31 and the permanent magnet rotor 32 are coupled. The protective bracket 35 covers the conductor rotor 31 and the permanent magnet rotor 32 from top to bottom to prevent external objects from affecting them.

[0032] The protective bracket 35 also needs to be fixed to the cement base with expansion bolts. The internal space of the protective bracket 35 is sufficient. When the motor 1 moves through the base 2, it will drive the conductor rotor 31 to move together. The protective bracket 35 will not affect the movement of the conductor rotor 31.

[0033] Multiple heat sinks 33 are provided, and all heat sinks 33 are distributed in a ring on the side wall of the conductor rotor 31. The heat sinks are connected to the conductor rotor 31 by screws. The heat sink 33 includes a base plate, and multiple heat dissipation fins are formed on the outer surface of the base plate. The heat sink 33 can increase the contact area with the outside, thereby improving the heat dissipation efficiency.

[0034] The heat sink 33 is made of aluminum. Aluminum has a low density, which can reduce the weight of the heat sink. At the same time, since the inner wall of the conductor rotor is fitted with a copper ring, the aluminum heat sink 33 can avoid interference with the copper ring in the conductor rotor 31.

[0035] The guide fan blade 34 is disposed on the end face of the conductor rotor 31. At the same time, the guide fan blade 34 is also connected to a baffle. The baffle is parallel to the end face of the conductor rotor 31. The guide fan blade 34 is located between the end face of the conductor rotor 31 and the baffle. The end face of the conductor rotor 31 has an opening, and the end face of the permanent magnet rotor 32 also has an opening. When the conductor rotor 31 rotates, it will drive the guide fan blade 34 to rotate, thereby accelerating the airflow and forming an air duct.

[0036] The airflow comes from the load side, passes through the openings on the conductor rotor 31 and the permanent magnet rotor 32 and the air gap between them, and then, guided by the baffle, the airflow spreads outward along the plane of the baffle. The faster the conductor rotor 31 rotates, the faster the airflow and the higher the heat dissipation efficiency.

[0037] The drive mechanism includes a connecting flange 41, a rotating shaft 42, a fixed bearing 43, a coupling 44, a lead screw 45, a moving block 46, and a support bearing 47.

[0038] Two support bearings 47 are provided. Each support bearing 47 includes a bearing and a fixed seat. The bearing is installed in the middle of the fixed seat, and the fixed seat is fixed to the lower base 22 by bolts. Therefore, the support bearing 47 is installed on the lower base 21.

[0039] Both ends of the lead screw 45 pass through the support bearings 47 and are fixedly connected to the support bearings 47. The lead screw 45 is installed inside the lower base 22 through the support bearings 47. The moving block 46 meshes with the lead screw 45 and is located between the two support bearings 47. The moving block 46 is connected to the upper base 21 by bolts. When the lead screw 45 rotates, it can drive the moving block 46 to move, thereby realizing the movement of the upper base 21.

[0040] The fixed bearing 43 also includes a bearing and a fixed seat. The bearing is installed in the middle of the fixed seat, and the fixed seat is fixed to the lower base 22 by bolts. The fixed bearing 43 is then installed on the lower base 22. The fixed bearing 43 is opposite to the support bearing 47 and is located at the inner edge of the lower base 22.

[0041] The rotating shaft 42 passes through the fixed bearing 43 and is fixed. One end of the rotating shaft 42 is located inside the lower base 22 and is connected to the lead screw 45 through the coupling 44. The coupling 44 is a prior art. In this embodiment, the coupling 44 that connects the lead screw 45 and the rotating shaft 42 is a plum blossom coupling.

[0042] The other end of the rotating shaft 42 extends out of the lower base 22 and is fixed to the connecting flange 41. The connecting flange 41 is used to connect to an external actuator. The external actuator drives the rotating shaft 42 to rotate, which in turn drives the lead screw 45 to rotate, thereby realizing the movement of the upper base 21. The external actuator can be a drive motor. The motor shaft of the drive motor is fixed to the connecting flange 41 by bolts through a flange coupling.

[0043] When the drive motor is used as the external structure, the number of rotations of the drive motor is controllable, so the number of rotations of the lead screw 45 can also be controlled, and the moving distance of the moving block 46 is controllable, so the moving distance of the upper base 21 can be precisely adjusted. Example 2

[0044] When motor 1 is a small motor, there is no need to use a drive motor as an external actuator to drive the drive mechanism 4 to work; it can be done manually.

[0045] A crank can be installed and fixed to the connecting flange 41 with bolts. By manually turning the crank, the lead screw 45 can be rotated, thereby moving the upper base 21. At this time, the scale line and pointer are required to determine the specific movement distance. The accuracy will be lower, but the cost of use can be reduced.

[0046] The above embodiments are only for illustrating the technical concept of this utility model and should not be used to limit the protection scope of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the protection scope of this utility model.

Claims

1. A mobile base-type permanent magnet speed controller with air cooling, characterized in that: It includes a motor (1), a base (2), a speed regulating mechanism (3) and a drive mechanism (4), with the motor (1) mounted on the base (2); The base (2) includes an upper base (21), a lower base (22) and multiple linear guides (23). The linear guides (23) are symmetrically arranged on the lower base (22), and the sliders of the linear guides (23) are connected to the upper base (21). The speed regulating mechanism (3) is connected to the motor shaft of the motor (1), and the speed regulating mechanism (3) is provided with heat sink (33) and guide fan blade (34). The drive mechanism (4) is mounted on the lower base (22) and is connected to the upper base (21).

2. The air-cooled mobile base type permanent magnet speed controller according to claim 1, characterized in that: The upper base (21) has multiple fasteners (25) on its side wall for connecting with the motor (1), and two parallel limiting plates (27) on its lower surface.

3. The air-cooled mobile base type permanent magnet speed controller according to claim 2, characterized in that: The lower base (22) is provided with multiple bases (24) for mounting linear guide rails (23), and the lower base (22) is also provided with limiting blocks (26).

4. The air-cooled mobile base type permanent magnet speed controller according to claim 3, characterized in that: The limiting block (26) is disposed between two limiting plates (27), and the limiting block (26) is made of polyurethane.

5. A mobile base-type permanent magnet speed controller with air cooling and heat dissipation according to claim 1, characterized in that: The lower base (22) has scale lines on its side wall, and the upper base (21) has pointers on its side wall that cooperate with the scale lines.

6. A mobile base-type permanent magnet speed controller with air cooling and heat dissipation according to claim 1, characterized in that: The side wall of the lower base (22) is provided with a plurality of locking elements (28) for locking the upper base (21).

7. A mobile base-type permanent magnet speed controller with air cooling and heat dissipation according to claim 1, characterized in that: The speed regulating mechanism (3) includes a conductor rotor (31), a permanent magnet rotor (32) and a protective bracket (35). The conductor rotor (31) is coupled to the permanent magnet rotor (32) and is located inside the protective bracket (35). The conductor rotor (31) is connected to the motor shaft of the motor (1), and the permanent magnet rotor (32) is connected to the load shaft.

8. A mobile base-type permanent magnet speed controller with air cooling and heat dissipation according to claim 7, characterized in that: The heat sink (33) is arranged in a ring on the side wall of the conductor rotor (31), and the heat sink (33) is made of aluminum.

9. A mobile base-type permanent magnet speed controller with air cooling and heat dissipation according to claim 7, characterized in that: The guide fan blade (34) is disposed on the end face of the conductor rotor (31).

10. A mobile base-type permanent magnet speed controller with air cooling and heat dissipation according to claim 1, characterized in that: The drive mechanism (4) includes a connecting flange (41), a rotating shaft (42), a fixed bearing (43), a coupling (44), a lead screw (45), a moving block (46), and a support bearing (47). One end of the rotating shaft (42) is connected to an external actuator through the connecting flange (41), and the other end of the rotating shaft (42) is connected to the lead screw (45) through the coupling (44). The moving block (46) meshes with the lead screw (45) and is connected to the upper base (21). The end of the rotating shaft (42) near the lead screw (45) is connected to the lower base (22) through the fixed bearing (43), and both ends of the lead screw (45) are connected to the lower base (22) through the support bearing (47).

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