A new energy follow-up cooling hardware mold

Abstract

The present invention discloses a new energy follow-up cooling hardware mold, which belongs to the technical field of automobile parts processing. A new energy follow-up cooling hardware mold includes a top plate and a bottom plate, the bottom of the top plate is provided with several top templates, the top of the bottom plate is provided with bottom templates corresponding to the number of top templates, a capillary channel is provided on the top inner wall of the bottom template, the bottom of the bottom template is connected with a lifting plate through a spring, the front and rear ends of the bottom template are respectively provided with a water outlet pipe and a lifting baffle, the lifting baffle is fixedly connected to the lifting plate, the front and rear ends of the bottom template are connected with a spring telescopic rod, the bottom of the spring telescopic rod is connected to the bottom plate, a water inlet pipe is provided on one side of the bottom plate, and several main water pipes are provided inside the bottom plate, and the main water pipes are connected to the water inlet pipe. The present invention effectively solves the problem that it is wasteful to cool down the entire mold when some parts in the mold need to be manufactured.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, and more specifically to a new energy follow-up cooling hardware mold. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as a power source, integrate advanced technologies in vehicle power control and drive, and form advanced technical principles, new technologies, and new structures. In the production process of new energy vehicles, molds are often needed to produce many parts. One mold needs to produce multiple parts. In the sales process, there is sometimes a shortage of certain parts. At this time, it is a waste to produce all the parts in the mold. We need to produce specific parts, which means that only some areas in the mold are working, and these areas need to be cooled. If the entire mold is cooled, a lot of water will be consumed, wasting resources, and cooling a single area requires manual operation by the staff, which is very inconvenient.

[0003] Patent No. CN210190486U discloses a hardware mold capable of rapid cooling, including an upper mold plate and a lower mold plate, wherein a male mold plate is bolted to the lower surface of the upper mold plate, a female mold plate matching the male mold plate is provided on the upper surface of the lower mold plate, and positioning posts are provided around the edge of the upper surface of the lower mold plate, and guide post holes are provided at the positions of the upper mold plate corresponding to the positioning posts, and a through groove is provided on the side of the female mold plate away from the molding surface, and a cooling device is installed in the through groove. This hardware mold can rapidly cool the mold during or after injection molding, reduce the influence of heat on the structural characteristics of the mold, and meet the processing and use requirements. Its cooling device cannot change with the change of the position of the processed parts, which wastes resources. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The purpose of the present invention is to provide a new energy follow-up cooling hardware mold to solve the problems raised in the above background technology:

[0006] During the sales process, there may sometimes be a shortage of certain parts. At this time, it is a waste to produce all the parts in the mold. We need to produce specific parts, which means that only some areas in the mold are working, and these areas need to be cooled. If the entire mold is cooled, a lot of water will be consumed, wasting resources. Cooling down a single area requires manual operation by the staff, which is very inconvenient.

[0007] 2. Technical solution

[0008] A new energy follow-up cooling hardware mold, comprising a top plate and a bottom plate, wherein a plurality of top templates are arranged at the bottom of the top plate, a number of bottom templates corresponding to the number of top templates are arranged at the top of the bottom plate, a capillary channel is opened on the top inner wall of the bottom template, a lifting plate is connected to the bottom of the bottom template through a spring, a water outlet pipe and a lifting baffle are respectively arranged at the front and rear ends of the bottom template, the lifting baffle is fixedly connected to the lifting plate, a spring telescopic rod is connected to the front and rear ends of the bottom template, and the bottom of the spring telescopic rod is connected to the bottom plate;

[0009] A water inlet pipe is arranged on one side of the bottom plate, and several main water pipes are arranged inside the bottom plate. The main water pipes are connected with the water inlet pipes, and the main water pipes span all the bottom templates. A water supply pipe is arranged on the top of the main water pipe and below each bottom template. The lifting plate is penetrated by the water supply pipe, and a valve is arranged on the outside of the water supply pipe.

[0010] Preferably, the end of the bottom template away from the lifting baffle is connected to a connecting plate with an internal threaded hole, the internal thread of the connecting plate is connected to a threaded rod, the bottom of the threaded rod is connected to a bevel gear B, the outer side of the valve is coaxially connected to a driven gear, the side of the driven gear is meshed with a driving gear, the rear section of the bevel gear B is meshed with a bevel gear A, and the bevel gear A is connected to the driving gear through a rotating shaft.

[0011] Preferably, a rotating plate is installed inside the water inlet pipe, and a rotating rod is connected to the side of the rotating plate. The rotating rod is grooved at one end away from the rotating plate, and a pull-out inner rod is embedded in the groove. A block is fixedly connected to the outer surface of the inner rod, and a turntable is connected to the end of the inner rod away from the rotating rod. The rotating turntable can drive the inner rod and the rotating rod to rotate, and drive the rotating plate to rotate, thereby realizing the opening and closing of the water inlet pipe. The water inlet pipe is opened when cooling is needed, and closed when not needed.

[0012] Preferably, the inner rod passes through the speed regulating gear set, and the speed regulating gear set includes several speed regulating gears, each of the speed regulating gears is of different sizes and is linearly distributed according to the radius size, a hollow shaft is provided in the middle of the speed regulating gear, and a slot corresponding to the block is opened in the middle of the hollow shaft, and the block is only engaged with one slot at a time, and a bearing is connected to the outer surface of the hollow shaft, and the inner rod passes through the slot and the two are not in contact. When the block is not connected to the slot, the rotation of the inner rod has no effect on the speed regulating gear, and the position of the block can be adjusted by pulling the turntable outward to change the speed regulating gear engaged with it. If the block is not engaged with any speed regulating gear, the water inlet pipe cannot be automatically opened by the mechanical component and can only be opened and closed manually.

[0013] Preferably, it also includes a control component, which includes a plurality of control gears, the middle parts of the plurality of control gears are connected to the control shaft, the control gears correspond to the speed regulating gears one by one and mesh with each other, the radius ratio between each group of the control gears and the speed regulating gears is different, the control gears are coaxially connected and their rotational angular velocities are the same, while the speed regulating gears are not coaxially connected and their rotational angular velocities are different.

[0014] Preferably, the control component also includes a clockwork spring and a rack, the middle part of the clockwork spring is connected to the fast rotating shaft, the outer surface of the fast rotating shaft is fixedly connected with a ratchet gear, the top of the rack is fixedly connected to the top plate, and the outer side of the rack is provided with several rotatable movable plates through small springs, and the movable plates are meshed with the ratchet gear for transmission.

[0015] Preferably, when the top plate and the bottom plate are in contact, the movable plate is disengaged from the ratchet gear.

[0016] Preferably, the control component also includes a speed gear set, which includes a sun gear, planetary gears, and a ring gear. The sun gear is located in the middle of the ring gear, and there are several planetary gears that are located between the ring gears for transmission. The sun gear is fixedly connected to the fast rotating shaft, and the ring gear is fixedly connected to the control rotating shaft.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1) The present invention sets spring telescopic rods at the front and rear ends of the bottom template to connect with the bottom plate. When a workpiece is processed on the surface of the bottom template, the spring telescopic rod contracts and the bottom template is pressed down. During the pressing process, the threaded rod rotates, and the meshing transmission between the bevel gear A, the bevel gear B, the driving gear, and the driven gear drives the corresponding valve to open, and the cooling water enters the corresponding bottom template, thereby cooling the mold. The cooling system changes with the position of the workpiece, accurately cools the temperature, and reduces resource waste;

[0020] 2) In the present invention, when the workpiece is cold, a small amount of heat will be generated during the processing due to bending and other conditions. At this time, cooling water can be introduced to reduce the temperature. The cooling water is discharged from the water outlet pipe, and the position of the lifting plate remains unchanged. When the workpiece is a hot workpiece, the cooling water will instantly evaporate and vaporize when it contacts the bottom template, and the volume will expand. The lifting plate is squeezed and moves downward. During the downward movement, the lifting baffle moves with the movement of the lifting plate, and the discharge channel area increases. Steam is discharged from the position of the lifting baffle. The heat absorption characteristic of steam vaporization is used to quickly cool the mold and the workpiece, thereby improving the cooling effect. The steam is controlled inside the device to prevent steam from escaping, and the volume expansion caused by water vaporization is also adapted to the change in the retractable space.

[0021] 3) The present invention adjusts the speed regulating gear connected to the transmission system to achieve the purpose of adjusting the cooling water introduction time. For workpieces with different temperatures, changing the cooling water introduction time can improve the processing effect of the workpiece and ensure the yield rate of the workpiece;

[0022] 4) The present invention can effectively reduce the rotation speed of the control gear and prevent the rotating plate from rotating too many times by setting the speed change gear set. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the interior of the bottom plate of the present invention;

[0025] Figure 3 It is a schematic diagram of the bottom template of the present invention;

[0026] Figure 4 It is a schematic diagram of the capillary channel inside the bottom template of the present invention;

[0027] Figure 5 It is a schematic diagram of the speed regulating assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the interior of the water inlet pipe of the present invention;

[0029] Figure 7 It is a schematic diagram of the speed regulating gear set of the present invention;

[0030] Figure 8 It is a schematic diagram of the connection between the rotating rod and the inner rod of the present invention;

[0031] Fig. 9 Schematic diagram of the control assembly of the present invention.

[0032] Explanation of the reference numerals in the figure: 1. top plate; 2. bottom plate; 201. main water pipe; 202. water delivery pipe; 203. valve; 204. driven gear; 205. driving gear; 206. rotating shaft; 207. bevel gear A; 3. bottom template; 301. top template; 302. spring telescopic rod; 303. water outlet pipe; 304. lifting baffle; 305. capillary channel; 306. lifting plate; 307. bevel gear B; 308. threaded rod; 4. water inlet pipe; 401. rotating plate; 402, rotating rod; 403, inner rod; 404, block; 405, turntable; 5, speed regulating gear set; 501, bearing; 502, hollow shaft; 503, speed regulating gear; 504, slot; 6, control assembly; 601, control gear; 602, control shaft; 603, sun gear; 604, planetary gear; 605, ring gear; 606, clockwork spring; 607, ratchet gear; 608, rack; 609, movable sheet; 610, small spring; 611, fast rotating shaft. DETAILED DESCRIPTION

[0033] Example:

[0034] See also Figure 1-9A new energy follow-up cooling hardware mold includes a top plate 1 and a bottom plate 2. The top plate 1 and the bottom plate 2 are used as the carriers of the mold to fix the mold. Different molds can be installed on the top plate 1 and the bottom plate 2. A plurality of top templates 301 are arranged at the bottom of the top plate 1. A bottom template 3 corresponding to the number of top templates 301 is arranged at the top of the bottom plate 2. The bottom template 3 and the top template 301 form a group for processing some parts, and each group of molds is a cooling area. A capillary channel 305 is opened on the top inner wall of the bottom template 3. The capillary channel 305 is provided on the inner wall of the top inner wall of the bottom template 3. The channel 305 increases the contact area between the bottom template 3 and the water, and improves the cooling effect. The bottom of the bottom template 3 is connected to a lifting plate 306 through a spring, and the cooling water is located above the lifting plate 306 (parts processing is divided into cold stamping and hot stamping, and the difference is whether the workpiece to be processed is heated. When the workpiece is cold, a small amount of heat will be generated during the processing due to bending and other conditions. At this time, cooling water can be introduced to cool down, and the position of the lifting plate 306 remains unchanged. When the workpiece is a hot workpiece, the cooling water will evaporate and vaporize instantly when it contacts the bottom template 3, and the volume will expand. The lifting plate 306 06 is squeezed and moved downward), the front and rear ends of the bottom template 3 are respectively provided with a water outlet pipe 303 and a lifting baffle 304, the lifting baffle 304 is fixedly connected to the lifting plate 306, when the workpiece is processed as a cold workpiece, cooling water is discharged from the water outlet pipe 303, when the workpiece is processed as a hot workpiece, steam is discharged from the lifting baffle 304, the front and rear ends of the bottom template 3 are connected with a spring telescopic rod 302, the bottom of the spring telescopic rod 302 is connected to the bottom plate 2, when the mold is working, there is a workpiece between the bottom template 3 and the top template 301, and the spring telescopic rod 302 is Extrusion, the bottom template 3 descends; a water inlet pipe 4 is provided on one side of the bottom plate 2, and cooling water enters into the mold from the water inlet pipe 4. Several main water pipes 201 are provided inside the bottom plate 2. The main water pipes 201 are connected with the water inlet pipe 4. The main water pipes 201 span all the bottom templates 3. The top of the main water pipe 201 is located below each bottom template 3. A water pipe 202 is provided. The water pipe 202 will only cool down the bottom template 3 that needs to be cooled. The lifting plate 306 is penetrated by the water pipe 202, and a valve 203 is provided on the outside of the water pipe 202.

[0035] One end of the bottom template 3 away from the lifting baffle 304 is connected to a connecting plate with an internal threaded hole, the internal thread of the connecting plate is connected to a threaded rod 308, the bottom of the threaded rod 308 is connected to the bottom plate 2 through a bearing, when the bottom template 3 descends, the threaded rod 308 rotates, the bottom of the threaded rod 308 is connected to a bevel gear B307, the outer side of the valve 203 is coaxially connected to a driven gear 204, the side of the driven gear 204 is meshed with a driving gear 205, the rear section of the bevel gear B307 is meshed with a bevel gear A207, and the bevel gear A207 is connected to the driving gear 205 through a rotating shaft 206.

[0036] The working principle of this embodiment is as follows: by arranging spring telescopic rods 302 at the front and rear ends of the bottom template 3 to connect with the bottom plate 2, when a workpiece is processed on the surface of the bottom template 3, the spring telescopic rods 302 contract and the bottom template 3 is pressed down. During the pressing process, the threaded rod 308 rotates, and the meshing transmission among the bevel gear A207, the bevel gear B307, the driving gear 205, and the driven gear 204 drives the corresponding valve 203 to open, and cooling water enters the corresponding bottom template 3, thereby cooling the mold. The cooling system changes with the position of the workpiece, accurately cools the temperature, and reduces resource waste.

[0037] When the workpiece is a cold piece, a small amount of heat will be generated during the processing due to bending and the like. At this time, cooling water can be introduced to reduce the temperature. The cooling water is discharged from the outlet pipe 303, and the position of the lifting plate 306 remains unchanged. When the workpiece is a hot workpiece, the cooling water will instantly evaporate and vaporize when it contacts the bottom template 3, and the volume will expand. The lifting plate 306 is squeezed and moves downward. During the downward movement, the lifting baffle 304 moves with the movement of the lifting plate 306, and the area of ​​the discharge channel increases. The steam is discharged from the position of the lifting baffle 304. The heat absorption characteristic of steam vaporization is used to quickly cool down the mold and the workpiece, thereby improving the cooling effect. The steam is controlled inside the device to prevent the steam from escaping, and the retractable space change is used to adapt to the volume expansion caused by water vaporization.

[0038] As a further aspect of the present invention, see Figure 6-8 A rotating plate 401 is installed inside the water inlet pipe 4, and a rotating rod 402 is connected to the side of the rotating plate 401. The end of the rotating rod 402 away from the rotating plate 401 is grooved, and a pull-out inner rod 403 is embedded in the groove. A block 404 is fixedly connected to the outer surface of the inner rod 403, and a turntable 405 is connected to the end of the inner rod 403 away from the rotating rod 402. Rotating the turntable 405 can drive the inner rod 403 and the rotating rod 402 to rotate, and drive the rotating plate 401 to rotate, thereby realizing the opening and closing of the water inlet pipe 4. The water inlet pipe 4 is opened when cooling is needed, and closed when not needed.

[0039] Furthermore, the inner rod 403 passes through the speed regulating gear set 5, and the speed regulating gear set 5 includes several speed regulating gears 503, each of which is of different sizes and is linearly distributed according to the radius size. A hollow shaft 502 is provided in the middle of the speed regulating gear 503, and a slot 504 corresponding to the block 404 is provided in the middle of the hollow shaft 502. The block 404 is only engaged with one slot 504 at a time, and the outer surface of the hollow shaft 502 is connected with a bearing 501. The inner rod 403 passes through the slot 504 and the two are not in contact. When the block 404 is not connected to the slot 504, the rotation of the inner rod 403 does not affect the speed regulating gear 503. By pulling the turntable 405 outward, the position of the block 404 can be adjusted to change the speed regulating gear 503 engaged with it. If the block 404 is not engaged with any speed regulating gear 503, the water inlet pipe 4 cannot be automatically opened by the mechanical component and can only be opened and closed manually.

[0040] Furthermore, it also includes a control component 6, which includes several control gears 601. Each control gear 601 is of different size and is linearly distributed according to the radius size. The middle parts of the several control gears 601 are connected to the control shaft 602. The control gears 601 correspond to the speed regulating gears 503 one by one and mesh with each other. The radius ratio between each group of control gears 601 and the speed regulating gear 503 is different. The control gears 601 are coaxially connected and have the same rotational angular velocity, while the speed regulating gears 503 are not coaxial and have different rotational angular velocities.

[0041] Further, the control assembly 6 also includes a spring 606 and a rack 608. The middle of the spring 606 is connected to the fast rotating shaft 611. The outer surface of the fast rotating shaft 611 is fixedly connected with a ratchet gear 607. The top of the rack 608 is fixedly connected to the top plate 1. The outer side of the rack 608 is provided with a plurality of rotatable movable pieces 609 through a small spring 610. When the rack 608 rises, the movable piece 609 drives the ratchet gear 607 to rotate, and the spring 606 accumulates force. When the rack 608 falls, the small spring 610 continuously contracts, the ratchet gear 706 does not rotate, and the movable piece 609 meshes with the ratchet gear 607 for transmission. When the top plate 1 and the bottom plate 2 are in contact, the movable piece 609 is disengaged from the ratchet gear 607. At this time, the ratchet gear 607 is free from the restriction of the rack 608 and rotates. There is a time difference between the descent of the rack 608 and the rotation of the ratchet gear 607.

[0042] The principle of this scheme is as follows: when the top plate 1 rises, the rack 608 rises with the rise of the top plate 1, and during the lifting process, the ratchet gear 607 is driven to rotate, thereby driving the spring spring 606 to store force. During the descending process of the top plate 1, the rack 608 descends, and the ratchet gear 607 does not rotate until the top plate 1 and the bottom plate 2 are completely fitted together. At this time, the ratchet gear 607 is free from the restriction of the rack 608, rotates under the elastic force of the spring spring 606, and drives the control shaft 602 to rotate, and the control gear 601 rotates accordingly, and the speed regulating gear 503 engaged with the internal slot 504 and the block 404 will drive the rotating plate 401 to flip and open the water inlet pipe 4. By changing the speed regulating gear 503 connected to the transmission system, the purpose of adjusting the cooling water introduction time is achieved, and the introduction of cooling water will always lag behind the downward pressing process of the top plate 1, so that the workpiece has enough stamping time. Some cold stamping workpieces do not need to be cooled, so no speed regulating gear 503 is connected to the transmission system.

[0043] This solution adjusts the cooling water introduction time by adjusting the speed regulating gear 503 connected to the transmission system. For workpieces with different temperatures, changing the cooling water introduction time can improve the processing effect of the workpiece and ensure the yield rate of the workpiece.

[0044] However, the rotating plate 401 only needs to rotate 90 degrees to open the water inlet pipe 4, while the control gear 601 usually rotates several times.

[0045] As a further solution of the present invention, please refer to Fig. 9 The control component 6 also includes a speed gear set, which includes a sun gear 603, a planetary gear 604, and a ring gear 605. The sun gear 603 is located in the middle of the ring gear 605. There are several planetary gears 604 and they are located between the ring gears 605 for transmission. The sun gear 603 is fixedly connected to the fast rotating shaft 611, and the ring gear 605 is fixedly connected to the control rotating shaft 602. The rotation speed of the sun gear 603 is much greater than that of the ring gear 605, so the rotation speed of the ratchet gear 607 is much greater than that of the control gear 601, thereby reducing the rotation speed of the control gear 601.

[0046] By setting the speed-changing gear set, the rotation speed of the control gear 601 can be effectively reduced to prevent the rotating plate 401 from rotating too many times.

Claims

1. A new energy follow-up cooling hardware mold, comprising a top plate (1) and a bottom plate (2), wherein a plurality of top templates (301) are arranged at the bottom of the top plate (1), and a number of bottom templates (3) corresponding to the number of top templates (301) are arranged at the top of the bottom plate (2), characterized in that: A capillary channel (305) is provided on the top inner wall of the bottom template (3); the bottom of the bottom template (3) is connected to a lifting plate (306) via a spring; a water outlet pipe (303) and a lifting baffle (304) are respectively provided at the front and rear ends of the bottom template (3); the lifting baffle (304) is fixedly connected to the lifting plate (306); the front and rear ends of the bottom template (3) are connected to a spring telescopic rod (302); the bottom of the spring telescopic rod (302) is connected to the bottom plate (2); A water inlet pipe (4) is provided on one side of the bottom plate (2), a plurality of main water pipes (201) are provided inside the bottom plate (2), the main water pipes (201) spanning all bottom templates (3), a water delivery pipe (202) is provided at the top of the main water pipe (201) and below each bottom template (3), the lifting plate (306) is penetrated by the water delivery pipe (202), and a valve (203) is provided on the outside of the water delivery pipe (202); The end of the bottom template (3) away from the lifting baffle (304) is connected to a connecting plate with a threaded hole inside, the internal thread of the connecting plate is connected to a threaded rod (308), the bottom of the threaded rod (308) is connected to a bevel gear B (307), the outer side of the valve (203) is coaxially connected to a driven gear (204), the side of the driven gear (204) is meshingly connected to a driving gear (205), the rear section of the bevel gear B (307) is meshingly connected to a bevel gear A (207), and the bevel gear A (207) is connected to the driving gear (205) via a rotating shaft (206).

2. According to claim 1, a new energy follow-up cooling hardware mold is characterized in that: A rotating plate (401) is installed inside the water inlet pipe (4), a rotating rod (402) is connected to the side of the rotating plate (401), one end of the rotating rod (402) away from the rotating plate (401) is grooved, and a removable inner rod (403) is engaged and connected in the groove, a clamping block (404) is fixedly connected to the outer surface of the inner rod (403), one end of the inner rod (403) away from the rotating rod (402) is connected to a rotating disk (405), and the inner rod (403) passes through the speed regulating gear set (5).

3. A new energy follow-up cooling hardware mold according to claim 2, characterized in that: The speed regulating gear set (5) comprises a plurality of speed regulating gears (503), a hollow shaft (502) is arranged in the middle of the speed regulating gear (503), a clamping groove (504) corresponding to the clamping block (404) is opened in the middle of the hollow shaft (502), a bearing (501) is connected to the outer surface of the hollow shaft (502), and the inner rod (403) passes through the clamping groove (504) without contacting each other.

4. The new energy follow-up cooling hardware mold according to claim 3 is characterized in that: The invention also comprises a control assembly (6), wherein the control assembly (6) comprises a plurality of control gears (601), wherein the middle parts of the plurality of control gears (601) are connected to a control shaft (602), the control gears (601) correspond to the speed regulating gears (503) one by one and mesh with each other, and the radius ratio between each group of the control gears (601) and the speed regulating gears (503) is different.

5. The new energy follow-up cooling hardware mold according to claim 4 is characterized in that: The control assembly (6) further comprises a clockwork spring (606) and a rack (608); the middle portion of the clockwork spring (606) is connected to a fast rotating shaft (611); a ratchet gear (607) is fixedly connected to the outer surface of the fast rotating shaft (611); the top of the rack (608) is fixedly connected to the top plate (1); a plurality of rotatable movable plates (609) are arranged on the outer side of the rack (608) via small springs (610); and the movable plates (609) are meshed with the ratchet gear (607) for transmission.

6. The new energy follow-up cooling hardware mold according to claim 5 is characterized in that: When the top plate (1) and the bottom plate (2) are in contact, the movable sheet (609) is disengaged from the ratchet gear (607).

7. The new energy follow-up cooling hardware mold according to claim 5 is characterized in that: The control assembly (6) further comprises a speed change gear set, which comprises a sun gear (603), planetary gears (604), and a ring gear (605). The sun gear (603) is located in the middle of the ring gear (605), and there are a plurality of planetary gears (604) which are located between the ring gears (605) for transmission. The sun gear (603) is fixedly connected to a fast rotating shaft (611), and the ring gear (605) is fixedly connected to a control rotating shaft (602).

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