Planetary gear auxiliary mounting mechanism

Abstract

The present application relates to the technical field of workshop equipment, and discloses a planetary wheel auxiliary installation mechanism, which comprises a magnetic base, the bottom surface of the magnetic base is magnetic, a guide shaft is slidably and rotatably connected to the magnetic base, the sliding direction of the guide shaft is perpendicular to the bottom surface of the magnetic base, an elastic component is arranged between the guide shaft and the magnetic base to make the guide shaft tend to slide on the bottom surface of the magnetic base, the upper end of the guide shaft is exposed to the top surface of the magnetic base and fixedly connected with a transfer plate, the lower plate surface of the transfer plate is attached to the top surface of the magnetic base under the action of the elastic component, at least two guide rods are fixedly connected to the transfer plate, the center lines of all the guide rods are perpendicular to the lower plate surface of the transfer plate, a positioning block is slidably connected to all the guide rods, the bottom surface of the positioning block is parallel to the lower plate surface of the transfer plate, the bottom surface of the positioning block is magnetic, a stop pin is arranged on the bottom surface of the positioning block, and a tension spring is arranged between the positioning block and the transfer plate or the guide shaft to make the transfer plate and the positioning block tend to approach.

Description

Technical Field

[0001] This invention relates to the field of workshop equipment technology, and more specifically to a planetary gear auxiliary installation mechanism. Background Technology

[0002] Planetary gear trains are widely used as reduction mechanisms in various speed reducers. Planetary gears, planet carriers, and internal gear rings are typically essential components of a planetary gear train. During assembly, the planetary gears and planet carrier are usually assembled first, and then the planet carrier, along with the planetary gears, is placed into the internal gear ring. The planetary gears are generally rotatably connected to the planet carrier via bearings. Bearings usually have a certain amount of clearance, which can easily cause the planetary gears to tilt relative to the axis of rotation. When the planet carrier and planetary gears are placed into the internal gear ring together, the teeth may not align properly, leading to tooth collisions and damage when the teeth are inserted into the tooth grooves, causing assembly difficulties. Furthermore, since the planetary gears are rotatably connected to the planet carrier via bearings, they can rotate freely and independently, which also easily leads to tooth collisions.

[0003] For smaller planetary gears and carriers, such as those that can be lifted with one hand, the other hand can be used for assistance during assembly, requiring at most one additional operator to avoid the aforementioned issues. However, for medium to large planetary gear systems, the planetary gears and carriers are much heavier and cannot be lifted manually, requiring the use of cranes or other lifting equipment. During lifting, multiple people are needed to keep the planetary gears upright so that their teeth align with the grooves of the internal gear ring, preventing the aforementioned problems. Therefore, assembling medium to large planetary gear systems requires multiple people working together, is quite difficult, and consumes a lot of manpower. Furthermore, the large weight and hard material of each gear, coupled with the need for constant uprighting of the planetary gears during assembly, poses certain safety hazards. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this invention provides a planetary gear auxiliary mounting mechanism. This invention achieves the above objective through the following technical solution.

[0005] A planetary gear auxiliary mounting mechanism includes a magnetic base with a flat bottom and a parallel top surface. The bottom surface of the magnetic base is magnetic. A guide shaft is slidably and rotatably connected to the magnetic base, with the sliding direction of the guide shaft perpendicular to the bottom surface of the magnetic base. An elastic component is provided between the guide shaft and the magnetic base to cause the guide shaft to slide towards the bottom surface of the magnetic base. The upper end of the guide shaft protrudes from the top surface of the magnetic base and is fixedly connected to a transfer plate. Under the action of the elastic component, the lower surface of the transfer plate is in contact with the top surface of the magnetic base. At least two guide rods are fixedly connected to the rotating plate. The center lines of all guide rods are perpendicular to the lower surface of the rotating plate. A positioning block is slidably connected to all guide rods. The bottom surface of the positioning block is parallel to the lower surface of the rotating plate. The bottom edge of the positioning block is magnetic. A stop pin is provided on the bottom surface of the positioning block. The outer edges of the magnetic base, the outer edges of the rotating plate, the stop pin, and the outer edges of the positioning block are successively away from the axis of the guide shaft in the radial direction. A tension spring is provided between the positioning block and the rotating plate or the guide shaft to make the rotating plate and the positioning block tend to approach each other.

[0006] In this design, the bottom surfaces of the magnetic base and positioning block are magnetic. This can be achieved by embedding magnets in the bottom surfaces of the magnetic base and positioning block, or by directly fabricating the magnetic base and positioning block using magnetic materials. The lower surface of the transfer plate and the top surface of the magnetic base, when fitted together by the elastic components, prevent relative rotation between them. The fit between the lower surface of the transfer plate and the top surface of the magnetic base means that the lower surface of the transfer plate and the top and bottom surfaces of the magnetic base are parallel to each other. Since the centerlines of all guide rods are perpendicular to the lower surface of the transfer plate, and the bottom surface of the positioning block is parallel to the lower surface of the transfer plate, the positioning block slides along the guide rods, so the bottom surface of the positioning block is always parallel to the bottom surface of the magnetic base. To ensure more balanced force on the positioning block and smoother sliding, the preferred design is that all guide rods are evenly arranged around the axis of the guide shaft. The stop pin in this design is positioned between two adjacent teeth of the planetary gear to prevent the planetary gear from rotating or wobbling freely. Therefore, the preferred option for the stop pin is a cylindrical pin with its axis perpendicular to the bottom surface of the positioning block. In this design, the elastic coefficient of the elastic component is preferably greater than that of the tension spring.

[0007] The internal gear ring typically has an end face perpendicular to its axis. During assembly, place or fix the internal gear ring on the ground, ensuring its axis remains vertical. Use a crane or other equipment to lift the assembled planetary gears and planet carrier, ensuring the planet carrier's axis remains vertical. Move the assembled planetary gears and planet carrier directly above the internal gear ring, ensuring the lower end faces of the planetary gear teeth are as close as possible to the upper end faces of the internal gear ring teeth, but not in contact. Place the auxiliary mounting mechanism of this solution on the end face of the internal gear ring, ensuring the bottom surface of the magnetic base is in contact with the end face of the internal gear ring. Under the action of magnetism, the magnetic base can adhere to the internal gear ring. Place one auxiliary mounting mechanism for each planetary gear on the planet carrier, with each auxiliary mounting mechanism positioned opposite a planetary gear.

[0008] Overcoming the elastic force of the tension spring and guided by the guide rod, the positioning block moves upward, moving the magnetic base along the end face of the internal gear ring, so that the bottom surface of the positioning block and the upper end face of the planetary gear teeth are engaged and attracted. This process is repeated one by one until the bottom surface of each positioning block is engaged and attracted to the upper end face of the planetary gear teeth. This ensures that the end faces of the planetary gear teeth and the internal gear ring teeth are parallel, and further ensures that the axis of the planetary carrier and the axis of the internal gear ring are parallel to each other. Then, overcoming the elastic component and guided by the guide shaft, the intermediate plate moves upward and rotates, thereby causing the positioning block to rotate, so that the stop pin is engaged between two adjacent teeth on the planetary gear. After releasing the intermediate plate, the intermediate plate, under the action of the elastic component, re-engages with the magnetic base to prevent relative rotation between the intermediate plate and the magnetic base. During the up-and-down movement of the intermediate plate, the height position of the positioning block remains unchanged. During this process, methods such as observation or using a plumb line can be used to ensure that the teeth of the planetary gears and the grooves of the internal gear ring are aligned. If necessary, the magnetic base can be moved again along the end face of the internal gear ring for fine-tuning to ensure that the teeth of the planetary gears and the grooves of the internal gear ring are aligned. After aligning the teeth of each planetary gear with the grooves of the internal gear ring one by one, the planetary gears and planet carrier can be slowly lowered, and the teeth of the planetary gears can be smoothly inserted into the grooves of the internal gear ring to complete the assembly with the internal gear ring.

[0009] This solution eliminates the impact of bearing clearance, ensuring that the tooth faces of the planetary gears and the internal gear ring remain parallel during assembly. It also restricts the planetary gears, preventing free rotation and ensuring that the teeth of the planetary gears and the grooves of the internal gear ring are always aligned during assembly. This effectively prevents tooth collisions, making assembly smoother and more convenient. Furthermore, it eliminates the need for multiple operators, sometimes requiring only one person to complete the assembly, significantly reducing assembly difficulty. The solution also eliminates the need for constant alignment of the planetary gears during assembly, thus removing safety hazards.

[0010] As a further improved structural form, the aforementioned magnetic base has a groove with an opening facing the bottom surface. The lower end of the guide shaft has a flange, which is located in the groove of the magnetic base. The elastic component is a compression spring sleeved on the outside of the guide shaft, with one end of the compression spring abutting against the flange and the other end abutting against the bottom surface of the groove of the magnetic base. This structural form is simple and easy to assemble.

[0011] As a further improved structural design, the aforementioned magnetic base has a mounting hole with its axis perpendicular to the bottom surface of the magnetic base. The mounting hole connects the top surface of the magnetic base and the groove, and a sliding sleeve is installed in the mounting hole. The guide shaft is slidably and rotatably connected to the magnetic base via the sliding sleeve. The other end of the compression spring abuts against the bottom surface of the groove in the magnetic base or against the sliding sleeve. This structural design allows for smoother sliding of the guide shaft, facilitating the vertical movement and rotation of the transfer plate.

[0012] As a further improved structural design, a first friction pad is provided on the lower surface of the aforementioned transfer plate, and a second friction pad is provided on the top surface of the magnetic base. Under the action of the elastic component, the first and second friction pads are brought into contact. After the two friction pads are brought into contact, the friction between the contact surfaces can be greatly increased, thereby more effectively preventing the transfer plate from rotating relative to the magnetic base, which further ensures the limiting effect on the planetary gears.

[0013] As a further improved structural form, the aforementioned guide rod is provided with slots continuously arranged along the centerline of the guide rod. A support rod is arranged on the bottom surface of the positioning block, one end of which is hinged to the positioning block, and the other end of which can be inserted into the slot. In actual operation, it is generally necessary to attach and adsorb the bottom surface of the positioning block of the auxiliary installation mechanism to the upper end surface of the planetary gear teeth one by one. During the process of attaching and adsorbing one or more positioning blocks, while the other positioning blocks are not attached and adsorbed, it will cause uneven force on the planetary gear and planetary carrier. If the elastic force of the tension spring is large, it may cause the positioning block to shift downward, the attachment and adsorption to fail, and the planetary gear and planetary carrier to tilt. To address this, this structural form adds a support rod. After the bottom surface of the positioning block and the upper end surface of the planetary gear teeth are attached and adsorbed, the other end of the support rod can be inserted into the corresponding slot to support the positioning block. After all the auxiliary installation mechanisms are properly attached and adsorbed, the support rod can be swung to disengage the other end of the support rod from the slot. At this time, because the planetary gear and planetary carrier are under balanced force, the above-mentioned problems will not occur. With the guidance of multiple guide rods, the planetary gear and planetary carrier can move smoothly up and down in a straight line within a certain range.

[0014] As a further improved structural form, a locking clamp is slidably connected to the guide rod, and the locking clamp is arranged between the positioning block and the transfer plate. The locking clamp in this structural form has the same function as the support rod mentioned above. In addition, the locking clamp can be held in any position on the guide rod, making it more applicable.

[0015] Compared with the prior art, the present invention has the following advantages: on the one hand, it can eliminate the influence of bearing clearance, so that the tooth end faces of the planetary gear and the internal gear ring remain parallel during assembly; on the other hand, it can restrict the planetary gear and prevent it from rotating freely, so that the teeth of the planetary gear and the tooth grooves of the internal gear ring are always aligned during assembly, effectively avoiding tooth collisions, making assembly smoother and more convenient. Moreover, it does not require multiple people to operate, and even only one person is needed to complete the assembly work, which greatly reduces the assembly difficulty. During assembly, it is not necessary for personnel to constantly straighten the planetary gear, eliminating safety hazards. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention in actual use. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To illustrate this embodiment more concisely, some components that are well-known to those skilled in the art but are not related to the main content of the present invention may be omitted in the drawings or description. In addition, for ease of description, some components in the drawings may be omitted, enlarged, or reduced, but this does not represent the actual size or complete structure of the product.

[0019] Examples, such as Figure 1 As shown, a planetary gear auxiliary mounting mechanism includes a magnetic base 11 with a flat bottom and a parallel top surface. In this embodiment, the magnetic base 11 is directly made of magnetic material and has a cylindrical shape. The axis of the magnetic base 11 is perpendicular to its bottom surface. In other embodiments, the magnetic base can be made of non-magnetic material, and magnets are embedded in the bottom surface of the magnetic base to make it magnetic. In this embodiment, the magnetic base 11 has a cylindrical groove 111 with its opening facing its bottom surface. The groove 111 and the magnetic base 11 are coaxial. The magnetic base 11 also has a mounting hole 112 coaxially arranged in the magnetic base 11. The mounting hole 112 connects the top surface of the magnetic base 11 and the groove 111, and a sliding sleeve 12 is fixedly connected in the mounting hole 112.

[0020] A guide shaft 21 is slidably and rotatably connected within the sliding sleeve 12. The guide shaft 21 slides and rotates relative to the magnetic base 11 via the sliding sleeve 12. A circular flange 211 is coaxially mounted on the lower end of the guide shaft 21, located in the groove 111 of the magnetic base 11. A compression spring 22 is fitted around the outside of the guide shaft 21, with one end of the spring abutting against the flange 211 and the other end against the sliding sleeve 12. If a larger diameter compression spring is selected, the other end can also abut against the bottom surface of the groove in the magnetic base. As mentioned above, the sliding direction of the guide shaft 21 is perpendicular to the bottom surface of the magnetic base 11, and the compression spring 22 always causes the guide shaft 21 to slide towards the bottom surface of the magnetic base 11. The upper end of the guide shaft 21 is exposed on the top surface of the magnetic base 11 and is coaxially and fixedly connected to a disc-shaped transfer plate 23. A first annular friction pad 24 is coaxially embedded on the lower surface of the transfer plate 23, and a second friction pad 13 is coaxially embedded on the top surface of the magnetic base 11. Under the action of the compression spring 22, the first friction pad 24 and the second friction pad 13 are in contact, which can effectively prevent the transfer plate 23 and the magnetic base 11 from rotating relative to each other.

[0021] Two cylindrical guide rods 25 are fixedly connected to the transfer plate 23. The axes of the two guide rods 25 are perpendicular to the lower surface of the transfer plate 23, and the two guide rods 25 are evenly arranged around the axis of the guide shaft 21. A cylindrical positioning block 31 is slidably connected to both guide rods 25, and the positioning block 31 is coaxially arranged with the transfer plate 23. The axis of the positioning block 31 is perpendicular to its bottom surface, and the bottom surface of the positioning block 31 is parallel to the lower surface of the transfer plate 23. In this embodiment, the positioning block 31 is directly made of magnetic material. In other embodiments, the positioning block can be made of non-magnetic material, and then a magnet can be embedded in the bottom surface of the positioning block to make its bottom edge magnetic.

[0022] A stop pin 32 is fixedly installed on the bottom surface of the positioning block 31. In this embodiment, the stop pin 32 is a cylindrical pin, and the axis of the stop pin 32 is perpendicular to the bottom surface of the positioning block 31. The outer circular surface of the magnetic base 11, the outer circular surface of the transfer plate 23, the stop pin, and the outer circular surface of the positioning block 31 are successively moved away from the axis of the guide shaft in the radial direction. In this embodiment, the diameter of the magnetic base 11 is smaller than the diameter of the transfer plate 23, the diameter of the transfer plate 23 is smaller than the diameter of the positioning block 31, and the position of the stop pin 32 is located outside the cylindrical surface of the outer circular surface of the transfer plate 23 and inside the cylindrical surface of the outer circular surface of the positioning block 31. A tension spring 33 is provided between the positioning block 31 and the guide shaft 21. One end of the tension spring 33 is connected to the center of the positioning block 31, and the other end of the tension spring 33 is connected to the center of the guide shaft 21. The tension spring 33 keeps the transfer plate 23 and the positioning block 31 always tending to approach each other. In this embodiment, within the range of vertical movement of the positioning block 31 and the transfer plate 23, the elastic force provided by the compression spring 22 is always greater than the elastic force provided by the tension spring 33. Generally speaking, the elastic coefficient of the compression spring 22 being greater than that of the tension spring 33 is sufficient to meet this requirement. In this embodiment, the guide rod 25 is provided with slots continuously arranged along the axial direction of the guide rod 25. Two support rods 34 are hinged to the bottom surface of the positioning block 31. The swinging support rods 34 can cause the lower ends of the two support rods 34 to respectively engage in the slots of the two guide rods 25.

[0023] In this embodiment, the guide shaft 21 and the magnetic base 11 are connected by a sliding sleeve 12 for relative sliding and rotation. This allows the guide shaft 21 to slide more smoothly, facilitating the vertical movement and rotation of the guide shaft 21 and the connecting plate 23. As can be seen from the structure of this embodiment, whether the positioning block 31 and the connecting plate 23 are stationary or moving vertically, the lower surface of the connecting plate 23 and the bottom surface of the positioning block 31 are always parallel to the bottom surface of the magnetic base 11. The guide rods 25 are evenly distributed in this embodiment, making the force on the positioning block 31 more balanced and the sliding smoother.

[0024] like Figure 2 The diagram shows the assembled planetary gears 51 and planet carrier 52 of a large planetary gear train, ready to be assembled into the internal gear ring 53. Both end faces of the internal gear ring 53 are perpendicular to its axis. First, the internal gear ring 53 is placed on a horizontal surface and positioned or fixed, with its axis remaining vertical. The assembled planetary gears 51 and planet carrier 52 are then suspended above the internal gear ring 53 using a crane, ensuring that the lower end faces of the planetary gear teeth 51 and the upper end faces of the internal gear teeth 53 are as close as possible without contacting each other, while simultaneously ensuring that the axis of the planet carrier 52 remains vertical.

[0025] The auxiliary mounting mechanism of this embodiment is placed on the upper surface of the internal gear ring 53, ensuring that the bottom surface of the magnetic base 11 is in contact with the upper surface of the internal gear ring 53. Under the action of magnetic force, the magnetic base 11 can be attracted to the internal gear ring 53. The planet carrier 52 of this embodiment is equipped with three planetary gears 51, so three sets of auxiliary mounting mechanisms are placed on the internal gear ring 53 for attraction, and the positions of the three sets of auxiliary mounting mechanisms are respectively opposite to the three planetary gears 51.

[0026] First, operate any one of the auxiliary installation mechanisms. Overcoming the elastic force of the tension spring 33 and guided by the guide rod 25, move the positioning block 31 upwards, and move the magnetic base 11 along the end face of the internal gear ring 53, so that the bottom surface of the positioning block 31 and the upper end face of the planetary gear 51 teeth are attached and attracted. Then, swing the two support rods 34 so that the lower ends of the two support rods 34 respectively engage in the slots of the two guide rods 25 to support the positioning block 31 and prevent the positioning block 31 from moving downwards. In this way, operate the other two auxiliary installation mechanisms one by one, so that the bottom surface of the positioning block 31 of each auxiliary installation mechanism is attached and attracted to the upper end face of the planetary gear 51 teeth. This ensures that the end face of the planetary gear 51 teeth is parallel to the end face of the internal gear ring 53 teeth, and further ensures that the axis of the planet carrier 52 and the axis of the internal gear ring 53 are parallel to each other.

[0027] After the positioning blocks 31 of the three auxiliary installation mechanisms are properly attached and adsorbed with the planetary gears 51, the support rod 34 can be swung to disengage the lower end of the support rod 34 from the slot. At this time, because the planetary gears 51 and the planetary carrier 52 are subjected to balanced forces, there will be no problems such as the positioning blocks 31 shifting downwards, failure of attachment and adsorption, or tilting of the planetary gears 51 and the planetary carrier 52. With the guidance of the six guide rods 25, the planetary gears 51 and the planetary carrier 52 can move smoothly up and down in a straight line within a certain range.

[0028] Then, operate on any one of the auxiliary installation mechanisms. Overcoming the compression spring 22, guided by the guide shaft 21, the intermediate plate 23 moves upward and rotates, thereby causing the positioning block 31 to rotate, so that the stop pin 32 engages between two adjacent teeth on the planetary gear 51. After releasing the intermediate plate 23, under the action of the compression spring 22, the intermediate plate 23 moves downward, causing the first friction pad 24 and the second friction pad 13 to re-adhere, preventing relative rotation between the intermediate plate 23 and the magnetic base 11. During the up-and-down movement of the intermediate plate 23, the height of the positioning block 31 remains unchanged; that is, the bottom surface of the positioning block 31 and the upper surface of the teeth of the planetary gear 51 always remain in a state of contact and adsorption. During the rotation of the intermediate plate 23, methods such as observation or using a plumb line can be used to ensure that the teeth of the planetary gear 51 and the grooves of the internal gear ring 53 are aligned. If necessary, the magnetic base 11 can be moved again along the end face of the internal gear ring 53 for fine-tuning to ensure that the teeth of the planetary gear 51 and the grooves of the internal gear ring 53 are aligned. After aligning the teeth of each planetary gear 51 with the grooves of the internal gear ring 53, the planetary gear 51 and the planet carrier 52 can be slowly lowered, and the teeth of the planetary gear 51 can be smoothly inserted into the grooves of the internal gear ring 53 to complete the assembly with the internal gear ring 53.

[0029] The above operating steps are only those commonly used in practical production. With a clear understanding of the operating principle, the steps can be rearranged as needed. In this embodiment, the two friction pads, when attached, can greatly increase the friction between the contact surfaces, thereby more effectively preventing the transfer plate 23 from rotating relative to the magnetic base 11, further ensuring the limiting effect on the planetary gear 51. In this embodiment, the stop pin 32 is placed between two adjacent teeth of the planetary gear 51 to prevent the planetary gear 51 from rotating or wobbling freely. In this embodiment, the support rod 34 serves as a temporary auxiliary support for the positioning block 31. In other embodiments, a locking clamp can be slidably connected to the guide rod, arranged between the positioning block and the transfer plate. The locking clamp can also be used for temporary auxiliary support of the positioning block. Furthermore, the locking clamp can be held in any position on the guide rod, making it more widely applicable.

[0030] This embodiment can eliminate the influence of bearing clearance, ensuring that the tooth end faces of planetary gear 51 and internal gear ring 53 remain parallel during assembly. Furthermore, it restricts planetary gear 51, preventing it from rotating freely. This ensures that the teeth of planetary gear 51 and the tooth grooves of internal gear ring 53 are always aligned during assembly, effectively preventing tooth collisions and making assembly smoother and more convenient. Moreover, it eliminates the need for multiple operators; even one person can complete the assembly, greatly reducing assembly difficulty. The assembly process also eliminates the need for constant alignment of planetary gear 51, thus removing safety hazards.

[0031] The above is only one specific embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A planetary gear auxiliary installation mechanism, characterized in that, The system includes a magnetic base with a flat, parallel bottom and top surface. The bottom surface of the magnetic base is magnetic. A guide shaft is slidably and rotatably connected to the magnetic base, with its sliding direction perpendicular to the bottom surface of the magnetic base. An elastic component is provided between the guide shaft and the magnetic base to guide the guide shaft towards the bottom surface of the magnetic base. The upper end of the guide shaft protrudes from the top surface of the magnetic base and is fixedly connected to a transfer plate. Under the action of the elastic component, the lower surface of the transfer plate is in contact with the top surface of the magnetic base. A fixed connection is also provided on the transfer plate. It has at least two guide rods, and the center lines of all guide rods are perpendicular to the lower surface of the transfer plate. A positioning block is slidably connected to all guide rods. The bottom surface of the positioning block is parallel to the lower surface of the transfer plate. The bottom edge of the positioning block is magnetic. A stop pin is provided on the bottom surface of the positioning block. The outer edge of the magnetic base, the outer edge of the transfer plate, the stop pin, and the outer edge of the positioning block are successively away from the axis of the guide shaft in the radial direction. A tension spring is provided between the positioning block and the transfer plate or the guide shaft to make the transfer plate and the positioning block tend to approach each other.

2. The planetary gear auxiliary installation mechanism according to claim 1, characterized in that, The magnetic base has a groove with an opening facing the bottom surface. The lower end of the guide shaft has a flange, which is located in the groove of the magnetic base. The elastic component is a compression spring sleeved on the outside of the guide shaft. One end of the compression spring abuts against the flange, and the other end of the compression spring abuts against the bottom surface of the groove of the magnetic base.

3. The planetary gear auxiliary installation mechanism according to claim 2, characterized in that, The magnetic base has a mounting hole with its axis perpendicular to the bottom surface of the magnetic base. The mounting hole connects the top surface of the magnetic base and the groove. A sliding sleeve is installed in the mounting hole. The guide shaft is slidably and rotatably connected to the magnetic base through the sliding sleeve. The other end of the compression spring abuts against the bottom surface of the groove of the magnetic base or against the sliding sleeve.

4. The planetary gear auxiliary installation mechanism according to claim 1, characterized in that, The transfer plate has a first friction pad on its lower surface and a second friction pad on its top surface with a magnetic base. The first and second friction pads are put into contact under the action of the elastic component.

5. The planetary gear auxiliary installation mechanism according to claim 1, characterized in that, The guide rod is provided with slots arranged continuously along the center line of the guide rod. A support rod is arranged on the bottom surface of the positioning block. One end of the support rod is hinged to the positioning block, and the other end of the support rod can be inserted into the slot.

6. The planetary gear auxiliary mounting mechanism according to claim 1, characterized in that, The guide rod is slidably connected to a locking clamp, which is arranged between the positioning block and the transfer plate.

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