A gear milling machine tool for gear manufacturing

Abstract

The present invention relates to the field of gear manufacturing equipment, in particular to a gear milling machine for gear manufacturing, including a gear milling machine, the gear milling machine including a bottom bin, a protective cover fixedly connected to the top of the bottom bin, a stand fixedly connected to the middle and rear part of the top of the bottom bin, a fixed bin fixedly connected to the rear part of the stand, an air pump installed inside the fixed bin, a diversion pipe installed at the air pump outlet, connecting pipes fixedly connected to the middle parts of both ends of the diversion pipe, the connecting pipes are arranged on the inner side of the opening, the openings are opened on both sides of the middle and lower part of the fixed frame, the end of the connecting pipe away from the diversion pipe is fixedly connected to the air bin, the air bin is rotatably connected to the outer periphery of the connecting shaft, the present invention enables the upper outlet to guide the airflow through the impact pipe, thereby cleaning the cutting point between the milling cutter and the end face gear, avoiding the accumulation of debris during milling, and affecting the milling quality.

Description

Technical Field

[0001] The present invention relates to the field of gear manufacturing equipment, in particular to a gear milling machine tool for gear manufacturing. Background Art

[0002] Gears are an important component of modern mechanical transmission. From heavy industrial machinery to light industrial machinery, gear transmission is widely used. End gears are a type of gear. In the manufacturing process of end gears, it is often necessary to use a milling machine to process the gear blank. The milling machine can drive the milling cutter to rotate at high speed to mill the surface of the gear blank. However, in actual use, the milling machine generally fixes the gear on a rotating disk, and then uses the upper milling gear to mill the gear blank. This makes it easy for the debris generated during processing to remain on the gear blank, which often affects the processing accuracy during subsequent processing. At the same time, the debris often scratches the milling surface and affects the meshing. At the same time, when processing end gears of different models, it is often necessary to adjust the tool position of the milling cutter, which is inconvenient to operate. The actual production adjustment requires shutdown operation, which affects production efficiency. Therefore, we propose a gear milling machine for gear manufacturing to solve the above-mentioned problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a gear milling machine for gear manufacturing.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a gear milling machine for gear manufacturing, including a gear milling machine, the gear milling machine including a bottom bin, a protective cover fixedly connected to the top of the bottom bin, a vertical frame fixedly connected to the middle and rear part of the top of the bottom bin, a fixed bin fixedly connected to the rear of the vertical frame, an air pump installed inside the fixed bin, a diverter pipe installed at the air outlet of the air pump, connecting pipes fixedly connected to the middle of both ends of the diverter pipe, the connecting pipes are arranged on the inner side of the opening, the openings are opened on both sides of the middle and lower part of the fixed frame, the end of the connecting pipe away from the diverter pipe is fixedly connected to the air bin, and the air bin is rotatably connected to the outer periphery of the connecting shaft.

[0005] Preferably, the lower parts of both sides of the vertical frame are fixedly connected with connecting frames, and the connecting frames are fixedly connected to both sides of the rear part of the fixed frame. A limiting opening is opened in the upper part of the fixed frame, and the motor compartment is slidably connected to both sides of the limiting opening through limiting blocks.

[0006] Preferably, a cylinder is fixedly connected to the front side of the top of the stand, a stepper motor is installed at the bottom of the cylinder, a pneumatic chuck is fixedly connected to the bottom of the stepper motor, and an end face gear is engaged with the lower periphery of the pneumatic chuck.

[0007] Preferably, the middle parts of both ends of the gas storage are fixedly connected with a through pipe, the ends of the through pipe away from the gas storage are fixedly connected with an impact tube, and the ends of the impact tubes are facing the milling cutter.

[0008] Preferably, a mounting plate is fixedly connected to the middle of the rear end of the fixing frame, a servo motor is installed on the upper rear side of the mounting plate, and a half gear is fixedly connected to the front driving end of the servo motor.

[0009] Preferably, a fixed plate is provided between the motor compartments, and connecting blocks are provided on both sides of the fixed plate. The connecting blocks are respectively installed in the middle of one end close to the motor compartment, and the middle of one end close to the connecting block is fixedly connected with a guide plate. The guide plates are respectively slidably connected to both sides of the fixed plate, and a hub motor is installed in the middle of the connecting block.

[0010] Preferably, the limit blocks are fixedly connected to the front and rear sides of the upper and lower parts of the motor compartment, the front driving end of the motor in the motor compartment is fixedly connected to a connecting shaft, and a milling cutter is installed on the outer periphery of the connecting shaft.

[0011] Preferably, a gear ring is fixedly connected to the outer periphery of the hub motor, and the upper and lower parts of the gear ring are meshed with tooth grooves, and the tooth grooves are opened on one side of the middle part of the guide plate close to the hub motor.

[0012] Preferably, the half gear is arranged on the inner side of the inner gear rack, the inner gear rack is fixedly connected to the middle part of the rear end of the fixed plate, and the half gear is meshed with the inner gear rack.

[0013] Preferably, the inner sides of both ends of the impact tube are fixedly connected with fixing rings, the interiors of the fixing rings are rotatably connected with rotating shafts through a plurality of inclined plates, and the outer periphery of the rotating shafts are fixedly connected with evenly distributed guide vanes.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] During processing, by setting the end gear at the top and the milling cutter at the bottom of the end gear, the chips generated during milling will fall directly under the action of gravity, thereby greatly reducing the accumulation of chips on the end gear or the milling cutter, which is conducive to continuous processing work. At the same time, the air flow can be output through the operation of the air pump, and the air flow can be introduced into the air chamber through the connecting pipe. Then, the air flow can be guided into the impact tube through the through pipes on both sides of the air chamber, and the air flow can be guided into the impact tube through the upper outlet, so that the cutting point between the milling cutter and the end gear can be cleaned, thereby avoiding the accumulation of chips during milling and affecting the milling quality.

[0016] Through the outlet at the bottom of the impact tube, the air flow can be used to pre-clean the gap between the cutting edges of the milling cutter before the milling cutter contacts the end gear, thereby avoiding damage to the milling surface of the end gear caused by debris mixed in at the moment of contact, which is beneficial to practical use. At the same time, in actual use, the air flow will first encounter the inclined plate when being discharged through the impact tube. The inclination angle of the inclined plate can give the air flow a guide, and then the air flow will contact the guide vane, so that the guide vane and the rotating shaft can rotate. When the guide vane and the rotating shaft rotate, it will drive the air flow to form a cyclone, thereby accelerating the output speed of the air flow. At the same time, the air flow can increase the cleaning effect of the milling cutter, which is beneficial to practical use.

[0017] During the tooth milling process, the servo motor can drive the half gear to rotate. When the half gear rotates, it will engage with the internal teeth of the upper and lower parts of the internal gear rack in turn. The half gear can use the internal gear rack to drive the motor compartments on both sides to move left and right, thereby increasing the milling range of the milling cutter. At the same time, repeated left and right milling can effectively increase the accuracy and smoothness of the milling surface, and at the same time, it can avoid residual or stuck milling debris, which is beneficial to improving the processing quality.

[0018] During the processing, the hub motor inside the fixed plate will start to work, and the gear ring on the outer periphery of the hub motor will start to rotate. The gear ring can use the meshing tooth grooves to drive the guide plates on both sides to move. When the gear ring rotates forward, it will drive the guide plates closer to each other, and when the gear ring rotates reversely, it will drive the guide plates away from each other. In actual use, people can start the hub motor, thereby adjusting the cutting range of the milling cutter, so that the gear milling machine can mill end face gears of different sizes. At the same time, the milling cutter can also be repeatedly adjusted synchronously during milling, so as to avoid jamming between the milling cutter and the end face gear, which is beneficial to actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic front view of a three-dimensional structure of a gear milling machine tool for gear manufacturing according to the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of a protective cover of a gear milling machine tool for gear manufacturing according to the present invention;

[0021] Figure 3 This is a schematic diagram of the partial structure inside the protective cover of a gear milling machine tool for gear manufacturing according to the present invention;

[0022] Figure 4 This is a schematic diagram of the partial structure inside the fixed chamber of a gear milling machine tool for gear manufacturing according to the present invention;

[0023] Figure 5 This is a schematic diagram of the partial structure of a milling cutter of a gear milling machine tool for manufacturing gears according to the present invention;

[0024] Figure 6 This is a schematic diagram of the partial structure of the air chamber of a gear milling machine tool for gear manufacturing according to the present invention;

[0025] Figure 7 This is a schematic diagram of the partial structure of the impact tube of a gear milling machine tool for gear manufacturing according to the present invention;

[0026] Figure 8 This is a schematic diagram of the partial structure of a fixed plate of a gear milling machine tool for gear manufacturing according to the present invention;

[0027] Figure 9 The present invention is a schematic diagram of the partial structure of a fixed plate of a gear milling machine tool for gear manufacturing.

[0028] 1. Gear milling machine; 101. Protective cover; 102. Bottom chamber; 103. Fixed frame; 104. Cylinder; 105. Face gear; 106. Vertical frame; 107. Milling cutter; 108. Stepper motor; 109. Fixed plate; 110. Connecting shaft; 111. Connecting pipe; 112. Opening; 113. Motor chamber; 114. Limiting port; 115. Impact pipe; 116. Pneumatic chuck; 117. Connecting block; 11 8. Connecting frame; 119. Diverter pipe; 120. Air pump; 121. Fixed chamber; 122. Servo motor; 123. Mounting plate; 124. Internal gear rack; 125. Through pipe; 126. Limit block; 127. Fixed ring; 128. Inclined plate; 129. Guide vane; 130. Rotating shaft; 131. Half gear; 132. Tooth groove; 133. Gear ring; 134. Hub motor; 135. Air chamber; 136. Guide plate. DETAILED DESCRIPTION

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0030] like Figures 1-9A gear milling machine tool for gear manufacturing shown in FIG. 1 includes a gear milling machine tool 1, which includes a bottom bin 102, a protective cover 101 fixedly connected to the top of the bottom bin 102, a stand 106 fixedly connected to the middle and rear part of the top of the bottom bin 102, a fixed bin 121 fixedly connected to the rear of the stand 106, an air pump 120 installed inside the fixed bin 121, a diverter pipe 119 installed at the air outlet of the air pump 120, and a connecting pipe 111 fixedly connected to the middle of both ends of the diverter pipe 119. The connecting pipes 111 are both arranged on the inside of the opening 112, and the openings 112 are both opened on both sides of the middle and lower part of the fixed frame 103. The connecting pipe 111 is fixedly connected to an air storage 135 at one end away from the diverter pipe 119. The air storage 135 is rotatably connected to the outer periphery of the connecting shaft 110. The middle parts of both ends of the air storage 135 are fixedly connected to a through pipe 125. The end of the through pipe 125 away from the air storage 135 is fixedly connected to an impact pipe 115. The ends of the impact pipe 115 are facing the milling cutter 107. The inner sides of both ends of the impact pipe 115 are fixedly connected to a fixing ring 127. The interior of the fixing ring 127 is rotatably connected to a rotating shaft 130 through a plurality of inclined plates 128. The outer periphery of the rotating shaft 130 is fixedly connected to uniformly distributed guide vanes 129.

[0031] Furthermore, in a specific implementation, during processing, the air flow can be output through the operation of the air pump 120, and the air flow can be introduced into the air chamber 135 through the connecting pipe 111. Then, the air flow can be guided into the inside of the impact tube 115 through the through pipes 125 on both sides of the air chamber 135. The air flow can be guided out of the upper outlet of the impact tube 115 to clean the cutting area between the milling cutter 107 and the end gear 105, thereby avoiding the accumulation of debris during milling and affecting the milling quality. At the same time, the air flow can be used to clean the cutting edges of the milling cutter 107 before the milling cutter 107 contacts the end gear 105 through the outlet at the bottom of the impact tube 115. The gaps are cleaned in advance to avoid damage to the milling surface of the end gear 105 caused by debris mixed in at the moment of contact, which is beneficial to actual use. At the same time, in actual use, when the airflow is discharged through the impact tube 115, it will first encounter the inclined plate 128. The inclination angle of the inclined plate 128 can give the airflow a guide, and then the airflow will contact the guide blade 129, so that the guide blade 129 and the rotating shaft 130 can rotate. When the guide blade 129 and the rotating shaft 130 rotate, the airflow will be driven to form a cyclone, thereby accelerating the output speed of the airflow. At the same time, the airflow can increase the cleaning effect of the milling cutter 107, which is beneficial to actual use.

[0032] Among them, the lower parts of both sides of the stand 106 are fixedly connected with connecting frames 118, and the connecting frames 118 are fixedly connected to both sides of the rear of the fixed frame 103. A limited opening 114 is provided in the upper and middle part of the fixed frame 103. The motor compartment 113 is slidably connected to the two sides of the limited opening 114 through limit blocks 126. The limit blocks 126 are fixedly connected to the front and rear sides of the upper and lower parts of the motor compartment 113. The front driving end of the motor in the motor compartment 113 is fixedly connected with a connecting shaft 110, and a milling cutter 107 is installed on the outer periphery of the connecting shaft 110. The front side of the top of the stand 106 is fixedly connected to the cylinder 104, and a stepping motor 108 is installed at the bottom of the cylinder 104. The bottom of the stepping motor 108 is fixedly connected to a pneumatic chuck 116, and the outer periphery of the lower part of the pneumatic chuck 116 is engaged with the end gear 105.

[0033] Furthermore, in specific implementation, in actual use, people can put the end gear 105 on the lower part of the stepping motor 108, and then start the pneumatic chuck 116. The pneumatic chuck 116 can stably clamp the end gear 105, and then the cylinder 104 can drive the end gear 105 to descend, so that the end gear 105 can contact the lower milling cutter 107, and the motor inside the motor compartment 113 can drive the milling cutter 107 to rotate at high speed, and the milling cutter 107 can be used to achieve the bottom of the end gear 105. The milling teeth of the end face gear 105 can be driven by the stepping motor 108 to drive the pneumatic chuck 116 and the end face gear 105 to rotate at a predetermined angle, and cooperate with the cylinder 104 and the milling cutter 107 to complete the milling of the end face gear 105. By arranging the end face gear 105 at the upper part and the milling cutter 107 at the lower part of the end face gear 105, the debris generated during milling will fall directly under the action of gravity, thereby greatly reducing the accumulation of debris on the end face gear 105 or the milling cutter 107, which is conducive to continuous processing work.

[0034] Among them, the middle part of the rear end of the fixed frame 103 is fixedly connected to the mounting plate 123, the upper part of the rear side of the mounting plate 123 is installed with a servo motor 122, and the front driving end of the servo motor 122 is fixedly connected to a half gear 131, which is arranged on the inner side of the inner gear rack 124, and the inner gear rack 124 is fixedly connected to the middle part of the rear end of the fixed plate 109, and the half gear 131 is meshed with the inner gear rack 124;

[0035] Furthermore, in the specific implementation, during the milling process, the servo motor 122 can drive the half gear 131 to rotate. When the half gear 131 rotates, it will successively engage with the internal teeth of the upper and lower parts of the internal gear rack 124. The half gear 131 can use the internal gear rack 124 to drive the motor compartments 113 on both sides to move left and right, thereby increasing the milling range of the milling cutter 107. At the same time, repeated milling left and right can effectively increase the accuracy and smoothness of the milling surface, and at the same time, it can avoid residual or stuck milling debris, which is beneficial to improving the processing quality.

[0036] Among them, connecting blocks 117 are provided on both sides of the fixed plate 109, and the connecting blocks 117 are respectively installed in the middle of one end close to the motor compartment 113. The middle of the end close to the connecting block 117 is fixedly connected to a guide plate 136. The guide plates 136 are slidably connected to both sides of the fixed plate 109. A hub motor 134 is installed in the middle of the connecting block 117. The outer periphery of the hub motor 134 is fixedly connected to a gear ring 133. The upper and lower parts of the gear ring 133 are meshed with the tooth groove 132. The tooth groove 132 is opened on one side of the middle of the guide plate 136 close to the hub motor 134.

[0037] Furthermore, in the specific implementation, during the processing, the hub motor 134 inside the fixed plate 109 will start to work, and the gear ring 133 on the outer periphery of the hub motor 134 will start to rotate, and the gear ring 133 can use the meshing tooth grooves 132 to drive the guide plates 136 on both sides to move. When the gear ring 133 rotates forward, it will drive the guide plates 136 closer to each other, and when the gear ring 133 rotates reversely, it will drive the guide plates 136 away from each other, so that people can start the hub motor 134 in actual use, thereby realizing the adjustment of the cutting range of the milling cutter 107, so that the gear milling machine 1 can mill end gears 105 of different sizes. At the same time, the milling cutter 107 can also be repeatedly adjusted synchronously during milling, so as to avoid jamming between the milling cutter 107 and the end gear 105, which is beneficial to actual use.

[0038] Working principle:

[0039] In actual use, people can put the end gear 105 on the lower part of the stepper motor 108, and then start the pneumatic chuck 116. The pneumatic chuck 116 can stably clamp the end gear 105, and then the cylinder 104 can drive the end gear 105 to descend, so that the end gear 105 can contact the lower milling cutter 107, and the motor inside the motor compartment 113 can drive the milling cutter 107 to rotate at high speed. The milling cutter 107 can realize the milling of the bottom of the end gear 105, and the stepper motor 108 can drive the pneumatic chuck 116 and the end gear 105 to rotate at a predetermined angle, and cooperate with the cylinder 104 and the milling cutter 107 to complete the milling of the end gear 105. By arranging the face gear 105 at the upper part and the milling cutter 107 at the lower part of the face gear 105, the chips generated during milling will fall directly under the action of gravity, thereby greatly reducing the accumulation of chips on the face gear 105 or the milling cutter 107, which is conducive to continuous processing work. During processing, the air flow can be output through the operation of the air pump 120, and the air flow can be introduced into the air chamber 135 through the connecting pipe 111. Then, the air flow can be guided into the impact tube 115 through the through pipes 125 on both sides of the air chamber 135. The upper outlet can be used to guide the air flow through the impact tube 115, so as to clean the cutting point between the milling cutter 107 and the face gear 105, avoid the accumulation of chips during milling, and affect the milling process. The quality situation occurs. At the same time, the outlet at the bottom of the impact tube 115 can use the airflow to pre-clean the gap between the cutting edges of the milling cutter 107 before the milling cutter 107 contacts the end gear 105, so as to avoid the debris mixed in at the moment of contact from damaging the milling surface of the end gear 105, which is beneficial to actual use. At the same time, in actual use, when the airflow is discharged through the impact tube 115, it will first encounter the inclined plate 128. The inclination angle of the inclined plate 128 can give the airflow a guide, and then the airflow will contact the guide blade 129, so that the guide blade 129 and the rotating shaft 130 can rotate. When the guide blade 129 and the rotating shaft 130 rotate, the airflow will be driven to form a cyclone, thereby accelerating the output speed of the airflow. The airflow can increase the cleaning effect of the milling cutter 107, which is beneficial to practical use. During the milling process, the servo motor 122 can drive the half gear 131 to rotate. When the half gear 131 rotates, it will successively engage with the internal teeth of the upper and lower parts of the inner gear rack 124. The half gear 131 can use the inner gear rack 124 to drive the motor compartments 113 on both sides to move left and right, thereby improving the milling range of the milling cutter 107. At the same time, repeated left and right milling can effectively increase the accuracy and smoothness of the milling surface, and can avoid residual or stuck milling debris, which is beneficial to improving the processing quality. During the processing, the hub motor 134 inside the fixed plate 109 will start to work, thereby starting to rotate through the gear ring 133 on the outer periphery of the hub motor 134.The gear ring 133 can use the meshing tooth grooves 132 to drive the guide plates 136 on both sides to move. When the gear ring 133 rotates forward, it drives the guide plates 136 towards each other. When the gear ring 133 rotates reversely, it drives the guide plates 136 away from each other. In actual use, people can start the hub motor 134 to adjust the cutting range of the milling cutter 107, allowing the gear milling machine 1 to mill end gears 105 of different sizes. At the same time, the milling cutter 107 can also be repeatedly adjusted during milling, thereby preventing the milling cutter 107 from getting stuck with the end gear 105, which is beneficial for practical use.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear milling machine tool for gear manufacturing, comprising a gear milling machine tool (1), characterized in that: The gear milling machine (1) comprises a bottom bin (102), a protective cover (101) is fixedly connected to the top of the bottom bin (102), a stand (106) is fixedly connected to the middle and rear part of the top of the bottom bin (102), a fixed bin (121) is fixedly connected to the rear part of the stand (106), an air pump (120) is installed inside the fixed bin (121), a shunt pipe (119) is installed at the air outlet of the air pump (120), and the middle parts of both ends of the shunt pipe (119) are fixedly connected to The connecting tube (111) is provided inside the opening (112), and the opening (112) is provided on both sides of the lower middle portion of the fixed frame (103). One end of the connecting tube (111) away from the diversion pipe (119) is fixedly connected to the gas chamber (135), and the gas chamber (135) is rotatably connected to the outer periphery of the connecting shaft (110). The lower portions of both sides of the vertical frame (106) are fixedly connected to the connecting frames (118), and the connecting frames (118) are fixedly connected to the On both sides of the rear portion of the fixing frame (103), a limiting opening (114) is provided in the upper middle portion of the fixing frame (103), both sides of the limiting opening (114) are slidably connected to the motor compartment (113) through limiting blocks (126), a fixing plate (109) is provided between the motor compartments (113), and connecting blocks (117) are provided on both sides of the fixing plate (109), and the connecting blocks (117) are respectively installed in the middle of one end close to the motor compartment (113). ) are fixedly connected to the middle of one end thereof, and the guide plates (136) are respectively slidably connected to the two sides of the fixed plate (109). A hub motor (134) is installed in the middle of the connecting block (117). A gear ring (133) is fixedly connected to the outer periphery of the hub motor (134). The upper and lower parts of the gear ring (133) are meshed with the tooth groove (132). The tooth groove (132) is opened on one side of the middle of the guide plate (136) close to the hub motor (134).

2. A gear milling machine tool for gear manufacturing according to claim 1, characterized in that: The front side of the top of the stand (106) is fixedly connected to a cylinder (104), the bottom of the cylinder (104) is installed with a stepper motor (108), the bottom of the stepper motor (108) is fixedly connected to a pneumatic chuck (116), and the lower periphery of the pneumatic chuck (116) is engaged with an end face gear (105).

3. The gear milling machine tool for gear manufacturing according to claim 1, characterized in that: The middle parts of both ends of the gas chamber (135) are fixedly connected to a through pipe (125), and one end of the through pipe (125) away from the gas chamber (135) is fixedly connected to an impact pipe (115), and the end of the impact pipe (115) faces the milling cutter (107).

4. The gear milling machine tool for gear manufacturing according to claim 1, characterized in that: A mounting plate (123) is fixedly connected to the middle of the rear end of the fixing frame (103), a servo motor (122) is mounted on the upper rear side of the mounting plate (123), and a half gear (131) is fixedly connected to the front driving end of the servo motor (122).

5. The gear milling machine tool for gear manufacturing according to claim 1, characterized in that: The limit blocks (126) are fixedly connected to the front and rear sides of the upper and lower parts of the motor compartment (113); the front driving end of the motor in the motor compartment (113) is fixedly connected to the connecting shaft (110); and the outer periphery of the connecting shaft (110) is installed with a milling cutter (107).

6. The gear milling machine tool for gear manufacturing according to claim 4, characterized in that: The half gear (131) is arranged on the inner side of the inner gear rack (124), the inner gear rack (124) is fixedly connected to the middle part of the rear end of the fixed plate (109), and the half gear (131) is meshedly connected to the inner gear rack (124).

7. The gear milling machine tool for gear manufacturing according to claim 3, characterized in that: The inner sides of both ends of the impact tube (115) are fixedly connected to fixing rings (127), the interiors of the fixing rings (127) are rotatably connected to a rotating shaft (130) via a plurality of inclined plates (128), and the outer periphery of the rotating shaft (130) is fixedly connected to evenly distributed guide vanes (129).

Images