Welding rotation variable frequency motor

Abstract

The invention discloses a welding rotation variable frequency motor, and relates to the technical field of motors, the welding rotation variable frequency motor comprises a motor body, the front end part of the motor body is provided with a circular groove, the inner ring surface of the circular groove is fixedly provided with a gear ring, the output end of the motor body is fixedly sleeved with a sun gear, and the front end part of the motor body is provided with a rectangular front end cover; a bearing is inserted in the middle of the rectangular front end cover, a driving shaft is rotatably inserted in the bearing, the driving shaft is connected with the sun gear through a planetary mechanism, the outer surface of the motor body is fixedly sleeved with a plurality of annular cooling fins, condensation assemblies are installed among the annular cooling fins, and a circular rear end cover is installed at the rear end of the motor body; through stable power transmission, reliable sealing performance and a high-efficiency heat dissipation system, the motor is adaptive to an actual operation scene of welding rotary frequency conversion, continuous and stable operation of the motor in welding operation is guaranteed, and the welding operation efficiency and quality are improved.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and in particular to a welded rotary frequency converter motor. Background Technology

[0002] In welding rotation operations, the motor needs to continuously output stable power to ensure welding accuracy. Traditional motors mostly use single gear transmission, which has a short power transmission path and is easily affected by load fluctuations, resulting in unstable drive shaft speed and welding trajectory deviation. At the same time, traditional transmission structures lack precise positioning of components, and after long-term operation, component wear intensifies, further reducing the reliability of power transmission and making it difficult to meet the high precision requirements of welding operations.

[0003] Welding environments often contain impurities such as dust and metal shavings, and motors generate a lot of heat during long-term operation. Traditional motors have simple sealing structures, mostly single-layer seals, which can easily allow impurities to enter and damage internal components. In terms of heat dissipation, they rely on a single heat sink, resulting in low heat dissipation efficiency and making the motor prone to overheating and shutdown. This not only affects the continuity of welding operations but also increases the maintenance cost of the motor and cannot adapt to the complex working conditions of welding operations. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art, and to propose a solution for welding a variable frequency motor.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: A welded rotary inverter motor includes a motor body. A circular groove is formed at the front end of the motor body. An integrally formed gear ring is fixedly mounted on the inner annular surface of the circular groove. A sun gear, coaxially distributed with the circular groove, is fixedly fitted at the output end of the motor body. A rectangular front end cover with a sealed connection is installed at the front end of the motor body. A through-bearing is inserted into the center of the rectangular front end cover. A through-bearing drive shaft is rotatably inserted inside the bearing. The drive shaft is connected to the sun gear via a planetary mechanism. A plurality of equidistantly distributed annular heat sinks are fixedly fitted on the outer surface of the motor body, and a condensation assembly is installed between the annular heat sinks. A circular rear end cover is installed at the rear end of the motor body.

[0006] Preferably, the front end of the motor body is fixedly fitted with an integrally formed first flange ring, and the back of the rectangular front end cover is fixedly fitted with a fixing ring. The first flange ring and the fixing ring are connected and locked by a plurality of first bolts.

[0007] Preferably, the back of the fixing ring is provided with a widened annular groove, and a sealing ring is engaged inside the widened annular groove. The sealing ring is hollow inside and has an annular groove on its back.

[0008] Preferably, the front of the first flange ring is provided with a double-layer annular groove, a reinforcing steel ring is fixed inside the sealing ring, and the back of the sealing ring is engaged inside the double-layer annular groove.

[0009] Preferably, the planetary mechanism includes planetary shafts and planetary gears. A planetary support is fixedly sleeved on the inner end of the drive shaft. Planetary shafts are rotatably inserted into the three ends of the planetary support. A planetary gear is fixedly sleeved on the outer end of each planetary shaft. The planetary gear is located in the gap between the gear ring and the sun gear, and the planetary gear meshes with the gear ring and the sun gear respectively.

[0010] Preferably, the condensation assembly includes spiral heat dissipation fins, and a plurality of spirally distributed limiting notches are provided between the plurality of annular heat dissipation fins. The outer surface of the motor body is fitted with a plurality of spirally distributed spiral heat dissipation fins, and the spiral heat dissipation fins pass through the corresponding plurality of limiting notches in sequence, and a plurality of diamond-shaped through holes are formed between the plurality of annular heat dissipation fins and the spiral heat dissipation fins.

[0011] Preferably, a pair of annular tubes are fixedly sleeved on both sides of the motor body, and spiral holes are opened on the spiral heat dissipation fins. A spiral condenser tube is fixedly inserted inside the spiral hole, and both ends of the spiral condenser tube extend outward and are connected and fixed through the annular tube on the corresponding side.

[0012] Preferably, a circulating condensate pump is provided above the motor body, and a pair of circulating pipes are respectively provided at the inlet and outlet of the circulating condensate pump. The outer end of each circulating pipe is connected and fixed to the corresponding annular pipe on one side.

[0013] Preferably, the rear end of the motor body is fixedly fitted with an integrally formed second flange ring, and the second flange ring is threadedly connected to and locked to the circular rear end cover by a number of second bolts.

[0014] Preferably, the circular rear end cover has several evenly distributed heat dissipation holes, and a cooling fan with the output airflow direction facing outward is fixedly installed in the middle of the rear end face of the motor body.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the power transmission is adapted to the welding rotation scenario. The motor body outputs power to drive the sun gear, causing the planetary gears to rotate and revolve around the gear ring. The power is transmitted to the drive shaft through the planetary shaft and planetary support. The bearing supports the drive shaft to rotate stably, ensuring continuous power transmission during welding rotation operations and meeting the stable power output requirements of the operation. 2. In this invention, the sealing structure ensures a stable welding environment. The first flange ring and the fixed ring are connected by bolts. The sealing ring is engaged between the widened annular groove and the double-layer annular groove. The reinforced steel ring enhances the strength of the sealing ring, preventing dust and debris from entering the motor during welding and protecting the normal operation of internal components. 3. In this invention, the heat dissipation system is adapted to long-term welding operations. The spiral condenser tube in the condensation assembly circulates condensate to absorb heat, and the circulating condenser pump drives the condensate circulation. The cooling fan accelerates the internal air flow, the heat dissipation holes exhaust air and the diamond-shaped through holes provide ventilation. The annular heat sink and spiral heat dissipation fins assist in heat dissipation and prevent the motor from overheating. In summary, this invention, through stable power transmission, reliable sealing performance, and an efficient heat dissipation system, adapts to the actual operating scenarios of welding rotation frequency conversion, ensuring the continuous and stable operation of the motor during welding operations, and improving the efficiency and quality of welding operations. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic cross-sectional view of the motor body structure of the present invention; Figure 4 For the present invention Figure 3 Explosion-proof diagram of the structure; Figure 5 For the present invention Figure 1 Explosion-proof diagram of the structure; Figure 6 For the present invention Figure 2 Explosion-proof diagram of the structure; Figure 7 This is an exploded view of the structure of several spiral heat dissipation fins and the circulating condensation pump of the present invention; In the diagram, the numbers represent: 100, Motor body; 101, Gear ring; 102, First flange ring; 103, Double-layer annular groove; 104, Sun gear; 105, Cooling fan; 106, Second flange ring; 107, Circular rear end cover; 108, Heat dissipation hole; 200, Rectangular front end cover; 201, Fixing ring; 202, Widened annular groove; 203, Sealing ring; 204, Reinforcing steel ring; 205, Bearing; 206, Drive shaft; 207, Planetary support; 208, Planetary shaft; 209, Planetary gear; 300, Annular heat sink; 301, Spiral heat dissipation fins; 302, Spiral condenser tube; 303, Circulating condenser pump; 304, Circulation pipe; 305, Annular tube. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Example 1: This example provides a welding-type variable frequency motor, see [link to example]. Figures 1 to 7 Specifically, the motor body 100 has a circular groove at its front end. An integrally formed gear ring 101 is fixed to the inner ring surface of the circular groove. The gear ring 101 restricts the movement trajectory of the planetary gear 209, allowing the planetary gear 209 to revolve around the central axis along its internal toothed track. A sun gear 104, coaxially distributed with the circular groove, is fixedly fitted onto the output end of the motor body 100. The sun gear 104 receives power from the motor body 100 and rotates synchronously, transmitting driving force through meshing with the planetary gear 209. A rectangular front end cover 200 with a sealing connection is installed at the front end of the motor body 100. The rectangular front end cover 200 provides a mounting support base for the drive shaft 206 and is connected to the first flange ring 102 through a fixing ring 201 to achieve a seal. A through-distributed bearing 205 is inserted in the middle of the rectangular front end cover 200. The bearing 205 is used to support the drive shaft 206, reduce friction when the drive shaft 206 rotates, and ensure its stable rotation. The drive shaft 206 is inserted through the bearing 205. The drive shaft 206 receives the power transmitted by the planetary support 207 and outputs it to meet the power requirements of welding rotation operation. The drive shaft 206 is connected to the sun gear 104 through a planetary mechanism. Several equally spaced annular heat sinks 300 are fixedly sleeved on the outer surface of the motor body 100, and condensation components are installed between the several annular heat sinks 300. A circular rear end cover 107 is installed at the rear end of the motor body 100.

[0019] It should be noted that: in this embodiment, as Figure 3 and Figure 4As shown, the front end of the motor body 100 is fixedly fitted with an integrally formed first flange ring 102, and the back of the rectangular front end cover 200 is fixedly fitted with a fixing ring 201. The first flange ring 102 and the fixing ring 201 are connected and locked by several first bolts. The back of the fixing ring 201 is provided with a widened annular groove 202. A sealing ring 203 is engaged inside the widened annular groove 202. The sealing ring 203 serves to seal the connection between the rectangular front end cover 200 and the motor body 100. The sealing ring 203 is hollow inside and has an annular groove on the back. The front of the first flange ring 102 is provided with a double-layer annular groove 103, and a reinforcing steel ring 204 is fixed inside the sealing ring 203. The reinforcing steel ring 204 is used to enhance the structural strength of the sealing ring 203 and ensure its stable sealing performance. The back of the sealing ring 203 is engaged inside the double-layer annular groove 103. The planetary mechanism includes planetary shafts 208 and planetary gears 209. A planetary support 207 is fixedly sleeved on the inner end of the drive shaft 206. The planetary support 207 receives the power transmitted by the planetary shafts 208 and drives the drive shaft 206 to rotate. Planetary shafts 208 are rotatably inserted into the three ends of the planetary support 207. The planetary shafts 208 transmit the revolution power of the planetary gears 209 to the planetary support 207. A planetary gear 209 is fixedly sleeved on the outer end of each planetary shaft 208. The planetary gears 209 are driven by the sun gear 104 and rotate and revolve simultaneously to transmit power. The planetary gears 209 are located in the gap between the gear ring 101 and the sun gear 104, and the planetary gears 209 mesh with the gear ring 101 and the sun gear 104 respectively.

[0020] The working principle of this embodiment is as follows: During operation, the motor body 100 first outputs power, and its output end directly drives the sun gear 104 to rotate synchronously; since the sun gear 104 and the planet gear 209 are in a meshing state, under the rotational driving force of the sun gear 104, the planet gear 209 will generate two motions at the same time: on the one hand, it rotates around its own axis, and on the other hand, it is restricted by the gear ring 101 and makes a circular revolution along the internal tooth trajectory of the gear ring 101; During this process, the revolution of the planetary gear 209 can be synchronously transmitted to the planetary shaft 208, which in turn drives the planetary support 207 to rotate around the same axis. Since the inner end of the drive shaft 206 is fixedly connected to the planetary support 207, the rotational power of the planetary support 207 will be directly transmitted to the drive shaft 206, ultimately causing the drive shaft 206 to rotate stably along the inner ring of the bearing 205, realizing the complete transmission of motor power from the output end to the drive shaft 206, and meeting the power requirements of welding rotation operation.

[0021] Example 2: Based on Example 1, this example solves the heat dissipation problem during motor operation and improves heat dissipation efficiency by adding a condensation assembly consisting of spiral heat dissipation fins 301, spiral condenser tubes 302, annular tubes 305, a circulating condenser pump 303, and a circulating tube 304. It also includes: In the specific implementation process, such as Figure 4 and Figure 7 As shown, the condensation assembly includes spiral heat dissipation fins 301, and several spirally distributed limiting notches are provided between several annular heat dissipation fins 300. Several spirally distributed spiral heat dissipation fins 301 are fitted on the outer surface of the motor body 100. The spiral heat dissipation fins 301 pass through the corresponding limiting notches in sequence, and several diamond-shaped through holes are formed between several annular heat dissipation fins 300 and spiral heat dissipation fins 301 to assist ventilation. A pair of annular tubes 305 are fixedly sleeved on both sides of the motor body 100. The spiral heat dissipation fins 301 are provided with spiral holes distributed in a spiral shape. A spiral condenser tube 302 is fixedly inserted inside the spiral holes. The spiral condenser tube 302 flows with condensate. When it flows, it absorbs the heat generated by the motor body 100 to achieve liquid cooling. Both ends of the spiral condenser tube 302 extend outward and are connected and fixed to the annular tube 305 on the corresponding side. A circulating condensate pump 303 is provided above the motor body 100. The circulating condensate pump 303 drives the condensate to form a closed loop flow in the annular pipe 305, the spiral condensate pipe 302 and the circulating pipe 304. The inlet and outlet ends of the circulating condensate pump 303 are respectively provided with a pair of circulating pipes 304. A special condensate filling port is provided at the inlet end of the circulating condensate pump 303. When adding condensate, the valve on the special condensate filling port is opened, and the valve is closed after the condensate is added. The circulating pipe 304 realizes the transmission of condensate between the circulating condensate pump 303 and the annular pipe 305. The outer end of each circulating pipe 304 is connected and fixed to the annular pipe 305 on the corresponding side. The rear end of the motor body 100 is fixedly fitted with an integrally formed second flange ring 106. The second flange ring 106 is connected and locked to the circular rear end cover 107 by several second bolts. The circular rear end cover 107 is provided with several evenly distributed heat dissipation holes 108 to assist in heat dissipation. A cooling fan 105 with the output air direction facing outward is fixedly installed in the middle of the rear end face of the motor body 100. The cooling fan 105 accelerates the flow of hot air inside the motor body 100 and achieves air cooling in conjunction with the heat dissipation holes 108.

[0022] The working principle of this embodiment is as follows: First, an appropriate amount of condensate is pre-added inside a pair of annular pipes 305 and several spiral condenser pipes 302; after the circulating condenser pump 303 is started, its power will drive the condensate to form a closed loop flow along a pair of circulating pipes 304: the condensate flows from the outlet of the circulating condenser pump 303 into the annular pipe 305 through one side of the circulating pipe 304, and then is diverted to several spiral condenser pipes 302 through the annular pipe 305. When flowing in the spiral condenser pipes 302, it absorbs the heat generated by the motor body 100; then, the condensate after absorbing heat flows into the other annular pipe 305, and flows back to the inlet of the circulating condenser pump 303 through the other side of the circulating pipe 304, completing one condensation cycle; At the same time, the cooling fan 105 is activated, with its output airflow directed outwards, which can accelerate the flow of hot air inside the motor body 100, and the hot air can be discharged through several heat dissipation holes 108; at the same time, several diamond-shaped through holes formed between the spiral heat dissipation fins 301 and the annular heat dissipation fins 300 can assist airflow and further enhance the heat dissipation effect; finally, through the liquid cooling circulation of the condensation component and the air cooling of the cooling fan 105 and the heat dissipation holes 108, efficient and coordinated heat dissipation of the motor body 100 is achieved, ensuring stable operation of the motor.

[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welded rotary variable frequency motor, comprising a motor body (100), characterized in that: The front end of the motor body (100) is provided with a circular groove, and an integrally formed gear ring (101) is fixedly provided on the inner ring surface of the circular groove. The output end of the motor body (100) is fixedly fitted with a sun gear (104) distributed coaxially with the circular groove. The front end of the motor body (100) is installed with a rectangular front end cover (200) that is sealed and connected. A through-distributed bearing (205) is inserted in the middle of the rectangular front end cover (200). A through-distributed drive shaft (206) is inserted into the bearing (205) and rotated inside the bearing (205). The drive shaft (206) is connected to the sun gear (104) through a planetary mechanism. A number of equally spaced annular heat sinks (300) are fixedly fitted on the outer surface of the motor body (100), and a condensation assembly is installed between the number of annular heat sinks (300). The rear end of the motor body (100) is installed with a circular rear end cover (107).

2. The welding rotary frequency converter motor according to claim 1, characterized in that: The front end of the motor body (100) is fixedly fitted with an integrally formed first flange ring (102), and the back of the rectangular front end cover (200) is fixedly fitted with a fixing ring (201). The first flange ring (102) and the fixing ring (201) are connected and locked by a number of first bolts.

3. A welding rotary frequency converter motor according to claim 2, characterized in that: The back of the fixing ring (201) is provided with a widened annular groove (202), and a sealing ring (203) is engaged inside the widened annular groove (202). The sealing ring (203) is hollow inside and has an annular groove on its back.

4. A welding rotary frequency converter motor according to claim 3, characterized in that: The first flange ring (102) has a double-layer annular groove (103) on its front side, and a reinforcing steel ring (204) is fixed inside the sealing ring (203), and the back of the sealing ring (203) is engaged inside the double-layer annular groove (103).

5. A welding rotary frequency converter motor according to claim 1, characterized in that: The planetary mechanism includes a planetary shaft (208) and a planetary gear (209). A planetary support (207) is fixedly sleeved on the inner end of the drive shaft (206). A planetary shaft (208) is rotatably inserted into each of the three ends of the planetary support (207). A planetary gear (209) is fixedly sleeved on the outer end of each planetary shaft (208). The planetary gear (209) is located in the gap between the gear ring (101) and the sun gear (104), and the planetary gear (209) meshes with the gear ring (101) and the sun gear (104) respectively.

6. The welding rotary frequency converter motor according to claim 1, characterized in that: The condensation assembly includes spiral heat dissipation fins (301), and several spirally distributed limiting notches are provided between several annular heat dissipation fins (300). Several spirally distributed spiral heat dissipation fins (301) are sleeved on the outer surface of the motor body (100). The spiral heat dissipation fins (301) pass through the corresponding limiting notches in sequence, and several diamond-shaped through holes are formed between several annular heat dissipation fins (300) and spiral heat dissipation fins (301).

7. A welding rotary frequency converter motor according to claim 6, characterized in that: A pair of annular tubes (305) are fixedly sleeved on both sides of the motor body (100). The spiral heat dissipation fins (301) are provided with spiral holes distributed in a spiral shape. A spiral condenser tube (302) is fixedly inserted inside the spiral hole. Both ends of the spiral condenser tube (302) extend outward and are connected and fixed to the annular tube (305) on the corresponding side.

8. A welding rotary frequency converter motor according to claim 7, characterized in that: A circulating condenser pump (303) is provided above the motor body (100). The inlet and outlet ends of the circulating condenser pump (303) are respectively provided with a pair of circulating pipes (304). The outer end of each circulating pipe (304) is connected and fixed to the annular pipe (305) on the corresponding side.

9. A welding rotary frequency converter according to claim 1, characterized in that: The rear end of the motor body (100) is fixedly fitted with an integrally formed second flange ring (106), and the second flange ring (106) is threadedly connected to and locked with the circular rear end cover (107) by a number of second bolts.

10. A welding rotary frequency converter according to claim 9, characterized in that: The circular rear end cover (107) has several evenly distributed heat dissipation holes (108), and a cooling fan (105) with the output airflow direction facing outward is fixedly installed in the middle of the rear end face of the motor body (100).

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