Rotating speed control mechanism of direct-drive permanent magnet synchronous motor

Abstract

The utility model discloses a rotating speed control mechanism of a direct-drive permanent magnet synchronous motor, which is characterized in that a clamping frame and a rotating rod are arranged, so that a permanent magnet synchronous motor body and a speed increasing device can be conveniently detached and separated, the speed increasing device can be conveniently maintained, and the rotating speed control mechanism of the direct-drive permanent magnet synchronous motor is more convenient to use and maintain; the problem that structures are inconvenient to disassemble is solved. By arranging the sliding rod, the moving clamping head can be guided, the position of the clamping head is adjusted to conduct clamping connection or separation more stably, and deviation cannot be generated; the speed increasing device is arranged, the power output shaft behind the speed increasing device can be connected with the permanent magnet synchronous motor body, the speed of the permanent magnet synchronous motor body can be controlled to be adjusted, and rotating speed control is facilitated; and a buffer spring is arranged, so that the speed increasing device is more stable during operation, damage to internal components caused by long-time use and operation is reduced, and the rotating speed control stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of synchronous motors, in particular to a speed control mechanism of a direct-drive permanent magnet synchronous motor. Background Art

[0002] Permanent magnet synchronous motors mainly use permanent magnets to provide excitation, which means that permanent magnet synchronous motors can save a series of links such as collector rings and brushes that are prone to problems in traditional motors, which makes permanent magnet synchronous motors popular among users;

[0003] Chinese patent authorization application number: CN202222433560.9 provides a vertical semi-direct drive permanent magnet synchronous motor. In this solution, several groups of heat sinks arranged inside the groove absorb the heat generated when the main body is working, and dissipate it into the air through the heat sink, thereby reducing the surface temperature of the main body. When the shaft rotates, the fan blades rotate on the back of the main body through the connecting shaft. When the fan blades rotate between the inner walls of the side panels, the air will pass through the wind slot to the position between the outer shell and the main body. Then the airflow flows along the inner wall of the side panel to the inside of the groove, and then the air flows inside the groove along the gap between the two groups of heat sinks. Compared with the traditional method of only providing heat dissipation with heat sinks, this solution can effectively accelerate the heat dissipation speed of the heat sink surface through the cooperation of the heat sink and the fan blades, thereby effectively improving the heat dissipation effect of the main body.

[0004] Existing permanent magnet synchronous motors have certain drawbacks when in use. First, the permanent magnet synchronous motor structures are usually connected and fixed with bolts, but when the structure needs to be disassembled for maintenance, it is necessary to laboriously twist these connection structures, which reduces the convenience of maintaining the permanent magnet synchronous motor. For this reason, we propose a speed control mechanism for a direct-drive permanent magnet synchronous motor. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a speed control mechanism for a direct-drive permanent magnet synchronous motor. By setting a bracket and a rotating rod, the permanent magnet synchronous motor body and the speed increasing device can be conveniently disassembled and separated, which is convenient for maintenance of the speed increasing device, making the speed control mechanism of the direct-drive permanent magnet synchronous motor more convenient to use and maintain, and is used to solve the problem of inconvenient disassembly between structures; by setting a sliding rod, the movable clamping head can be guided, so that the clamping head can adjust the position for clamping or separation more stably without offset; an speed increasing device is set, and the power output shaft behind the speed increasing device can be connected to the permanent magnet synchronous motor body, which can control the permanent magnet synchronous motor body to adjust the speed, and facilitate speed control; a buffer spring is set to make the speed increasing device more stable during operation, reduce damage to internal components caused by long-term use, and improve the stability of the speed control of the device.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A speed control mechanism for a direct-drive permanent magnet synchronous motor comprises a main body mechanism, a positioning mechanism is installed at the outer end of the main body mechanism, and a protection mechanism is installed at the bottom end of the main body mechanism;

[0008] The positioning mechanism includes a reinforcement frame, the outer end of the reinforcement frame is movably connected to the assembly frame, the inner end of the assembly frame is installed with a clamping frame, the outer end of the clamping frame is movably provided with a positioning groove, the inner end of the clamping frame is rotatably connected to a rotating rod, the front end of the rotating rod is fixedly connected to a rotating wheel 1, the outer end of the rotating wheel 1 is meshingly connected to an umbrella wheel 2, the inner end of the umbrella wheel 2 is installed with a screw, and the outer end of the screw is sleeved with a guide block.

[0009] By installing the bracket and the rotating rod, the permanent magnet synchronous motor body and the speed increasing device can be easily disassembled and separated, which makes it convenient to maintain the speed increasing device and makes the speed control mechanism of the direct-drive permanent magnet synchronous motor more convenient to use and maintain.

[0010] Furthermore, the outer end of the guide block is hingedly connected to hinge rods that are symmetrically distributed, and the other end of the hinge rod away from the guide block is hingedly connected to a clamp.

[0011] By installing the hinge rod, the hinge rod can form a connection structure at the outer end of the clamping head. When the hinge rod is moved and adjusted, it can stably drive the clamping head to adjust its position.

[0012] Furthermore, a card slot is provided at the outer end of the card head, and the card slot is located at the inner end of the reinforcement frame.

[0013] By installing the card slot and matching the card slot with the card head, the connection between the permanent magnet synchronous motor body and the speed increasing device can be made more convenient and stable.

[0014] Furthermore, a limiting block is installed at the rear end of the clamping head, and a sliding rod is slidably connected to the inner end of the limiting block.

[0015] By installing the slide bar, the position of the clamping head can be adjusted to make the clamping or separation more stable without causing deviation.

[0016] Furthermore, the main body mechanism includes a permanent magnet synchronous motor body, a generator is installed at the rear end of the permanent magnet synchronous motor body, a speed increasing device is movably connected to the front end of the permanent magnet synchronous motor body, a connecting shaft is fixedly connected to the transmission end of the speed increasing device, and a mounting frame is slidably connected to the bottom of the connecting shaft.

[0017] By installing a speed increasing device, speed control can be easily performed.

[0018] Furthermore, a buffer frame is slidably connected to the top of the mounting frame, and a buffer rod is hingedly connected to the lower end of the buffer frame, and the buffer rods are symmetrically distributed.

[0019] By installing the buffer frame, the buffer frame can form a connection structure at the bottom end of the speed increasing device, so that the force generated by the speed increasing device can be transmitted to the buffer spring and the stability of the connection between the speed increasing device and the mounting frame is increased.

[0020] Furthermore, the other end of the buffer rod away from the buffer frame is hingedly connected to a connecting block, and a buffer spring is installed at the outer end of the connecting block.

[0021] By installing a buffer spring, damage to internal components caused by long-term use and operation can be reduced, thereby improving the stability of the speed control of the device.

[0022] Furthermore, a damping member is installed on the inner side of the buffer spring, and a buffer groove is formed on the outer end of the buffer spring.

[0023] By installing the buffer groove, the buffer groove can guide the buffer spring and the connecting block of the buffer movement, so that the buffer spring is more stable when performing the buffering effect.

[0024] In summary, the utility model has the following beneficial effects:

[0025] 1. By setting a card frame and a rotating rod, when the speed increasing device of the device needs to be separated and disassembled from the permanent magnet synchronous motor body for maintenance, the rotating rod is rotated to allow the guide block to move to drive the hinge rod and the clamping head to displace, so that the clamping head is separated from the card slot, and then the card frame is taken out from the inner end of the reinforcement frame, so that the permanent magnet synchronous motor body and the speed increasing device can be easily disassembled and separated, which is convenient for the maintenance of the speed increasing device, making the speed control mechanism of the direct-drive permanent magnet synchronous motor more convenient to use and maintain;

[0026] 2. By setting a slide bar, the slide bar can guide the moving clamp head, so that the clamp head can adjust the position for clamping or separation more stably without offset;

[0027] 3. By setting a speed increasing device, the power output shaft behind the speed increasing device can be connected to the permanent magnet synchronous motor body, and the permanent magnet synchronous motor body can be controlled to adjust the speed, which is convenient for speed control;

[0028] 4. By setting a buffer spring, when the speed increasing device generates vibration force during operation, the buffer rod and the connecting block are subjected to external force for position transmission. At this time, the buffer spring buffers the vibration force and the damping is used to buffer and suppress it, thereby making the speed increasing device more stable during operation, reducing damage to internal components caused by long-term use, and improving the stability of the speed control of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0030] Figure 2 is a schematic diagram of the structure of the positioning mechanism in this embodiment when viewed from above;

[0031] Figure 3 In this embodiment Figure 2 A schematic diagram of the structure with an enlarged plane at point A;

[0032] Figure 4 is a schematic diagram of the structure of the protective mechanism plane in this embodiment;

[0033] Figure 5 In this embodiment Figure 4 Schematic diagram of the structure enlarged on the plane at point B.

[0034] In the figure, 1. main body mechanism; 101. permanent magnet synchronous motor body; 102. generator; 103. speed increasing device; 104. connecting shaft; 105. mounting frame; 2. positioning mechanism; 201. reinforcement frame; 202. assembly frame; 203. clamping frame; 204. positioning groove; 205. rotating rod; 206. rotating wheel one; 207. umbrella wheel two; 208. screw rod; 209. guide block; 210. hinge rod; 211. clamping head; 212. clamping groove; 213. limiting block; 214. sliding rod; 3. protection mechanism; 301. buffer frame; 302. buffer rod; 303. connecting block; 304. buffer spring; 305. damping member; 306. buffer groove. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0036] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0037] Reference Figure 1-5 As shown, a speed control mechanism of a direct-drive permanent magnet synchronous motor in a preferred embodiment of the utility model comprises a main body mechanism 1, a positioning mechanism 2 is installed at the outer end of the main body mechanism 1, and a protection mechanism 3 is installed at the bottom end of the main body mechanism 1;

[0038] The positioning mechanism 2 includes a reinforcement frame 201, the outer end of the reinforcement frame 201 is movably connected to the assembly frame 202, the inner end of the assembly frame 202 is installed with a clamping frame 203, the outer end of the clamping frame 203 is movably provided with a positioning groove 204, the inner end of the clamping frame 203 is rotatably connected to a rotating rod 205, the front end of the rotating rod 205 is fixedly connected to a rotating wheel 1 206, the outer end of the rotating wheel 1 206 is meshingly connected to an umbrella wheel 207, the inner end of the umbrella wheel 207 is installed with a screw rod 208, and the outer end of the screw rod 208 is sleeved with a guide block 209.

[0039] Reference Figure 2-3 As shown, the outer end of the guide block 209 is hingedly connected to a symmetrically distributed hinge rod 210 , and the other end of the hinge rod 210 away from the guide block 209 is hingedly connected to a clamping head 211 .

[0040] Reference Figure 3 As shown, a clamping slot 212 is formed at the outer end of the clamping head 211 , and the clamping slot 212 is located at the inner end of the reinforcement frame 201 .

[0041] Reference Figure 2-3 As shown, a limiting block 213 is installed at the rear end of the clamping head 211 , and a sliding rod 214 is slidably connected to the inner end of the limiting block 213 .

[0042] By installing the bracket 203 and the rotating rod 205, when the speed increasing device 103 of the device needs to be separated, disassembled and maintained from the permanent magnet synchronous motor body 101, the rotating rod 205 is rotated to drive the screw rod 208 and the guide block 209 to perform threading, so that the guide block 209 moves to drive the hinge rod 210 and the clamping head 211 to be displaced, and the sliding rod 214 can guide the moving clamping head 211 to adjust the position of the clamping head 211 for more stable clamping or separation without offset. At this time, the clamping head 211 is separated from the clamping slot 212, and the bracket 203 is taken out from the inner end of the reinforcement frame 201, so that the permanent magnet synchronous motor body 101 and the speed increasing device 103 can be easily disassembled and separated, which is convenient for the maintenance of the speed increasing device 103 and makes the speed control mechanism of the direct-drive permanent magnet synchronous motor more convenient to use and maintain.

[0043] Reference Figure 1 As shown, the main body mechanism 1 includes a permanent magnet synchronous motor body 101, a generator 102 is installed at the rear end of the permanent magnet synchronous motor body 101, a speed increasing device 103 is movably connected to the front end of the permanent magnet synchronous motor body 101, a connecting shaft 104 is fixedly connected to the transmission end of the speed increasing device 103, and a mounting frame 105 is slidably connected below the connecting shaft 104.

[0044] By installing the speed increasing device 103, the power output shaft behind the speed increasing device 103 can be connected to the permanent magnet synchronous motor body 101, and the permanent magnet synchronous motor body 101 can be controlled to adjust the speed, which is convenient for speed control.

[0045] Reference Figure 4-5 As shown, a buffer frame 301 is slidably connected to the top of the mounting frame 105 , and a buffer rod 302 is hingedly connected to the lower end of the buffer frame 301 , and the buffer rods 302 are symmetrically distributed.

[0046] Reference Figure 5 As shown, the other end of the buffer rod 302 away from the buffer frame 301 is hingedly connected to a connecting block 303 , and a buffer spring 304 is installed at the outer end of the connecting block 303 .

[0047] Reference Figure 4-5 As shown, a damping member 305 is installed on the inner side of the buffer spring 304 , and a buffer groove 306 is formed at the outer end of the buffer spring 304 .

[0048] By installing the buffer frame 301, the buffer frame 301 can form a connecting structure at the bottom end of the speed increasing device 103, so that the force generated by the speed increasing device 103 can be transmitted to the buffer spring 304, and the buffer rod 302 and the connecting block 303 are subjected to external force for position transmission. At this time, the buffer spring 304 buffers the vibration force, and the damping element 305 performs buffering and suppression, thereby making the speed increasing device 103 more stable during operation, reducing damage to internal components caused by long-term use, and improving the stability of the speed control of the device.

[0049] Specific implementation process: When the device is running, the rear power output shaft of the speed increasing device 103 can be connected to the permanent magnet synchronous motor body 101, and the permanent magnet synchronous motor body 101 can be controlled to adjust the speed, which is convenient for speed control. When the speed increasing device 103 needs to be maintained and disassembled, the rotating rod 205 is rotated to drive the screw rod 208 and the guide block 209 to perform threaded action, so that the guide block 209 moves to drive the hinge rod 210 and the clamping head 211 to produce displacement, and the sliding rod 214 can guide the moving clamping head 211 to adjust the position of the clamping head 211 for clamping or separation to be more stable. At this time, the clamping head 211 is separated from the clamping slot 212, and then the clamping frame 203 is taken out from the inner end of the reinforcement frame 201, so that the permanent magnet synchronous motor body 101 and the speed increasing device 103 can be easily disassembled and separated, which is convenient for the maintenance of the speed increasing device 103 and makes the speed control mechanism of the direct-drive permanent magnet synchronous motor more convenient to use and maintain.

[0050] When the device is running, the speed increasing device 103 generates a certain vibration force, and the buffer rod 302 and the connecting block 303 are subjected to external force for position transmission. At this time, the buffer spring 304 buffers the vibration force, and the damping member 305 performs buffering and suppression, thereby making the speed increasing device 103 more stable during operation, reducing damage to internal components caused by long-term use, and improving the stability of the speed control of the device.

[0051] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A speed control mechanism for a direct-drive permanent magnet synchronous motor, characterized in that: It comprises a main body mechanism (1), a positioning mechanism (2) is installed at the outer end of the main body mechanism (1), and a protection mechanism (3) is installed at the bottom end of the main body mechanism (1); The positioning mechanism (2) comprises a reinforcement frame (201), the outer end of the reinforcement frame (201) is movably connected to an assembly frame (202), the inner end of the assembly frame (202) is mounted with a clamping frame (203), the outer end of the clamping frame (203) is movably provided with a positioning groove (204), the inner end of the clamping frame (203) is rotatably connected to a rotating rod (205), the front end of the rotating rod (205) is fixedly connected to a rotating wheel 1 (206), the outer end of the rotating wheel 1 (206) is meshingly connected to an umbrella wheel 2 (207), the inner end of the umbrella wheel 2 (207) is mounted with a screw rod (208), and the outer end of the screw rod (208) is sleeved with a guide block (209).

2. The speed control mechanism of a direct-drive permanent magnet synchronous motor according to claim 1, characterized in that: The outer end of the guide block (209) is hingedly connected to symmetrically distributed hinge rods (210), and the other end of the hinge rod (210) away from the guide block (209) is hingedly connected to a clamp (211).

3. The speed control mechanism of a direct-drive permanent magnet synchronous motor according to claim 2, characterized in that: The outer end of the clamping head (211) is provided with a clamping slot (212), and the clamping slot (212) is located at the inner end of the reinforcement frame (201).

4. The speed control mechanism of a direct-drive permanent magnet synchronous motor according to claim 3, characterized in that: A limiting block (213) is installed at the rear end of the clamping head (211), and a sliding rod (214) is slidably connected to the inner end of the limiting block (213).

5. The speed control mechanism of a direct-drive permanent magnet synchronous motor according to claim 1, characterized in that: The main body mechanism (1) comprises a permanent magnet synchronous motor body (101), a generator (102) is installed at the rear end of the permanent magnet synchronous motor body (101), a speed increasing device (103) is movably connected to the front end of the permanent magnet synchronous motor body (101), a connecting shaft (104) is fixedly connected to the transmission end of the speed increasing device (103), and a mounting frame (105) is slidably connected below the connecting shaft (104).

6. The speed control mechanism of a direct-drive permanent magnet synchronous motor according to claim 5, characterized in that: A buffer frame (301) is slidably connected to the top of the mounting frame (105), and a buffer rod (302) is hingedly connected to the bottom of the buffer frame (301), and the buffer rods (302) are symmetrically distributed.

7. The speed control mechanism of a direct-drive permanent magnet synchronous motor according to claim 6, characterized in that: The other end of the buffer rod (302) away from the buffer frame (301) is hingedly connected to a connecting block (303), and a buffer spring (304) is installed at the outer end of the connecting block (303).

8. The speed control mechanism of a direct-drive permanent magnet synchronous motor according to claim 7, characterized in that: A damping member (305) is installed on the inner side of the buffer spring (304), and a buffer groove (306) is provided on the outer end of the buffer spring (304).

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