Planet wheel auxiliary mounting mechanism

Abstract

The invention relates to the technical field of workshop equipment, and discloses a planet wheel auxiliary mounting mechanism which comprises a magnetic base, the bottom face of the magnetic base is magnetic, a guide shaft is slidably and rotatably connected to the magnetic base, and the sliding direction of the guide shaft is perpendicular to the bottom face of the magnetic base. An elastic component enabling the guide shaft to slide towards the bottom face of the magnetic base is arranged between the guide shaft and the magnetic base, the upper end of the guide shaft is exposed out of the top face of the magnetic base and is fixedly provided with a transfer plate, the lower plate face of the transfer plate is attached to the top face of the magnetic base under the action of the elastic component, and at least two guide rods are fixed to the transfer plate. The center lines of all the guide rods are perpendicular to the lower plate face of the transfer plate, all the guide rods are jointly connected with a positioning block in a sliding mode, the bottom face of the positioning block is parallel to the lower plate face of the transfer plate, the edge of the bottom face of the positioning block is magnetic, and a stop pin is arranged on the bottom face of the positioning block. And an extension spring for enabling the transfer plate and the positioning block to tend to approach is arranged between the positioning block and the transfer plate or the guide shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of workshop equipment, and more specifically to a planetary gear auxiliary installation mechanism. Background Art

[0002] Planetary gear trains are widely used in various reducers as reduction mechanisms. Planetary wheels, planetary carriers, and inner ring gears are usually necessary components of planetary gear trains. During assembly, the planetary wheels and the planetary carrier are usually assembled first, and then the planetary carrier is placed in the inner ring gear together with the planetary wheels. The planetary wheels are generally rotatably connected to the planetary carrier through bearings. The bearings usually have a certain amount of clearance, so the planetary wheels are prone to tilt relative to the axis of rotation. When the planetary carrier is placed in the inner ring gear together with the planetary wheels, it is easy for the teeth to not align with the tooth grooves, resulting in damage to the teeth when the teeth are inserted into the tooth grooves, which also brings certain troubles to the assembly work. In addition, the planetary wheels are rotatably connected to the planetary carrier through bearings, that is, the planetary wheels can rotate freely and flexibly alone, which is also easy to cause the teeth to collide with each other.

[0003] For planetary gears and planetary carriers with smaller mass, such as those that can be lifted with one hand, the other hand can be used to assist in assembly. At most, only another operator is needed to assist in assembly to basically avoid the above situation. However, for medium and large planetary gear trains, the mass of their planetary gears and planetary carriers is relatively large, and they cannot be lifted by manpower, so they need to be hoisted using equipment such as a crane. During hoisting, multiple people are required to straighten the planetary gears so that the teeth of the planetary gears can be aligned with the tooth grooves of the inner ring gear to avoid the above situation. It can be seen that for medium and large planetary gear trains, this kind of assembly requires the cooperation of multiple people, is very difficult, and consumes a lot of manpower. In addition, each gear is heavy and made of hard material. During assembly, personnel are required to straighten the planetary gears at all times, which poses certain safety hazards. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a planetary gear auxiliary installation mechanism. The present invention achieves the above-mentioned purpose through the following technical solutions.

[0005] A planetary gear auxiliary installation mechanism comprises a magnetic base, the bottom and top surfaces of which are both plane and parallel to each other, 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 slide toward 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 is fixedly connected to a transfer plate, and under the action of the elastic component, the lower plate surface of the transfer plate and the top surface of the magnetic base are fitted, At least two guide rods are fixedly connected to the rotating plate, and 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 edge of the positioning block is magnetic, and a stop pin is provided at 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 of the guide shaft. 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.

[0006] In this solution, the bottom surfaces of the magnetic base and the positioning block are magnetic, and magnets can be embedded in the bottom surfaces of the magnetic base and the positioning block, or the magnetic base and the positioning block can be directly made of magnetic materials. After the lower plate surface of the transfer plate and the top surface of the magnetic base in this solution are fitted under the action of the elastic component, the transfer plate and the magnetic base can be prevented from rotating relative to each other. The fitting of the lower plate surface of the transfer plate and the top surface of the magnetic base also means that the lower plate surface of the transfer plate and the top and bottom surfaces of the magnetic base are parallel to each other. Because the center lines of all guide rods are perpendicular to the lower plate surface of the transfer plate, the bottom surface of the positioning block is parallel to the lower plate surface of the transfer plate, and the positioning block slides along the guide rod, so the bottom surface of the positioning block is always parallel to the bottom surface of the magnetic base. In order to make the positioning block more balanced in force and slide more smoothly, the preferred solution is that all guide rods are evenly arranged around the axis of the guide shaft. The function of the stop pin in this solution is to be placed between two adjacent teeth of the planetary gear to prevent the planetary gear from rotating or swinging freely, so the preferred solution of the stop pin is a cylindrical shaft pin with the axis perpendicular to the bottom surface of the positioning block. The elastic coefficient of the elastic component in this solution is preferably greater than the elastic coefficient of the tension spring.

[0007] The inner gear ring usually has an end face perpendicular to its axis. During assembly, place or fix the inner gear ring somewhere on the ground and ensure that the axis of the inner gear ring remains vertical. Use a crane or other equipment to lift the assembled planetary gear and planetary carrier, and ensure that the axis of the planetary carrier remains vertical. Move the assembled planetary gear and planetary carrier to the top of the inner gear ring, and make the lower end face of the planetary gear teeth and the upper end face of the inner gear ring teeth as close as possible but not touching. Place the auxiliary installation mechanism of this scheme on the end face of the inner gear ring and ensure that the bottom surface of the magnetic base and the end face of the inner gear ring fit. Under the action of magnetic force, the magnetic base can be adsorbed on the inner gear ring. Place as many auxiliary installation mechanisms of this scheme as there are planetary gears on the planetary carrier, and the positions of an auxiliary installation mechanism and a planetary wheel are opposite.

[0008] Overcome the elastic force of the tension spring and under the guidance of the guide rod, move the positioning block upward, move the magnetic base along the end face of the inner gear ring, and make the bottom surface of the positioning block fit and adsorb with the upper end face of the teeth of the planetary gear. Operate one by one to make the bottom surface of each positioning block fit and adsorb with the upper end face of the teeth of the planetary gear. On the one hand, it can ensure that the end face of the teeth of the planetary gear is parallel to the end face of the teeth of the inner gear ring, and on the other hand, it can further ensure that the axis of the planetary frame and the axis of the inner gear ring are parallel to each other. Then, overcome the effect of the elastic component and under the guidance of the guide shaft, move the transfer plate upward and rotate, thereby driving the positioning block to rotate, so that the stop pin is stuck between two adjacent teeth on the planetary gear. After releasing the transfer plate, the transfer plate is refitted with the magnetic base under the action of the elastic component to prevent the transfer plate and the magnetic base from rotating relative to each other. During the up and down movement of the transfer plate, the height position of the positioning block remains unchanged. During this process, observation or hanging wires can be used to ensure that the teeth of the planetary gear and the tooth grooves of the inner gear ring are aligned. If necessary, the magnetic base can be moved along the end surface of the inner gear ring again for fine adjustment to ensure that the teeth of the planetary gear and the tooth grooves of the inner gear ring are aligned. After aligning the teeth of each planetary gear with the tooth grooves of the inner gear ring one by one, the planetary gear and the planet carrier can be slowly moved down, and the teeth of the planetary gear can be smoothly inserted into the tooth grooves of the inner gear ring to complete the assembly with the inner gear ring.

[0009] On the one hand, this solution can eliminate the influence of bearing clearance, so that the tooth end faces of the planetary wheel and the tooth end faces of the inner gear ring are always kept parallel during assembly; on the other hand, it can limit the planetary wheel to prevent the planetary wheel from rotating freely, so that the teeth of the planetary wheel and the tooth grooves of the inner gear ring are always aligned during assembly, effectively avoiding the phenomenon of teeth and teeth knocking, making assembly smoother and more convenient, and does not require the cooperation of multiple people, and even only one person is needed to complete the assembly work, which greatly reduces the difficulty of assembly. During assembly, there is no need for personnel to always straighten the planetary wheel, eliminating safety hazards.

[0010] As a further improved structural form, the magnetic base is provided with a groove with an opening toward the bottom surface, the lower end of the guide shaft is provided with a flange, the flange 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 is against the flange, and the other end of the compression spring is 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 form, the magnetic base is provided with a mounting hole whose axis is perpendicular to the bottom surface of the magnetic base, the mounting hole is connected to the top surface and the groove of the magnetic base, a sliding sleeve is installed in the mounting hole, the guide shaft is connected to the magnetic base through the sliding sleeve and the sliding sleeve, and the other end of the compression spring is against the bottom surface of the groove of the magnetic base or against the sliding sleeve. This structural form can make the sliding of the guide shaft smoother, and facilitate the up and down movement and rotation of the transfer plate.

[0012] As a further improved structural form, a first friction pad is provided on the lower plate surface of the above-mentioned transfer plate, and a second friction pad is provided on the top surface of the magnetic base, and the first friction pad and the second friction pad are fitted together under the action of the elastic component. After the two friction pads are fitted together, the friction between the contact surfaces can be greatly increased, thereby more effectively preventing the transfer plate from rotating relative to the magnetic base, that is, further ensuring the limiting effect on the planetary gear.

[0013] As a further improved structural form, the guide rod is provided with a slot continuously arranged along the center line direction of the guide rod, and a support rod is arranged at the bottom surface of the positioning block, one end of the support rod is hinged on the positioning block, and the other end of the support rod can be stuck in the slot. In actual operation, it is generally necessary to fit and adsorb the bottom surface of the positioning block of the auxiliary installation mechanism and the upper end surface of the teeth of the planetary gear one by one. During the process of fitting and adsorbing one by one, if one or several positioning blocks complete the fitting and adsorption, while other positioning blocks fail to fit and adsorb, the planetary gear and the planetary carrier will be subjected to uneven force. If the elastic force of the tension spring is large, it may cause the positioning block to move down, the fitting and adsorption to fail, and the planetary gear and the planetary carrier to tilt. For this reason, a support rod is added to the structural form. After the bottom surface of the positioning block and the upper end surface of the teeth of the planetary gear are fitted and adsorbed, the other end of the support rod can be stuck in the corresponding slot to support the positioning block. After all the auxiliary installation mechanisms are fitted and adsorbed, the support rod can be swung to make the other end of the support rod disengage from the slot. At this time, because the planetary gear and the planetary carrier are under balanced force, the above-mentioned problem will not occur. In addition, with the guidance of multiple guide rods, the planetary gear and the planetary carrier can move up and down smoothly and 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 function of the locking clamp in this structural form is the same as that of the support rod. In addition, the locking clamp can be kept at any position on the guide rod, and has a wider range of applications.

[0015] Compared with the prior art, the present invention mainly has the following beneficial effects: on the one hand, the influence of the bearing clearance can be eliminated, so that the tooth end faces of the planetary gear and the tooth end faces of the inner gear ring are always kept parallel during assembly; on the other hand, the planetary gear can be restricted to prevent the planetary gear from rotating freely, so that the teeth of the planetary gear and the tooth grooves of the inner gear ring are always aligned during assembly, effectively avoiding the phenomenon of teeth and teeth bumping, making the assembly smoother and more convenient, and no multiple people are required to cooperate in the operation, and even only one person is required to complete the assembly work, which greatly reduces the difficulty of assembly. During assembly, there is no need for personnel to always perform straightening operations on the planetary gear, eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the cross-sectional structure of an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the embodiment of the present invention when it is actually used. Implementation

[0018] The present invention is further described below in conjunction with the accompanying drawings. The accompanying drawings are only used for exemplary description and cannot be understood as limiting the present invention. In order to more concisely describe the present embodiment, some parts that are well known to those skilled in the art but not related to the main content of the present invention will be omitted in the accompanying drawings or descriptions. In addition, for the convenience of description, some parts in the accompanying drawings will be omitted, enlarged or reduced, but they do not represent the size or entire structure of the actual product.

[0019] Examples, such as Figure 1 As shown, a planetary gear auxiliary installation mechanism includes a magnetic base 11 whose bottom and top surfaces are both flat and parallel to each other. The magnetic base 11 in this embodiment is directly made of magnetic material, and the overall shape of the magnetic base 11 is cylindrical, and 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 then a magnet is embedded on the bottom surface of the magnetic base to make its bottom surface magnetic. The magnetic base 11 in this embodiment is provided with a cylindrical groove 111 with an opening toward its bottom surface, and the groove 111 is coaxial with the magnetic base 11. A mounting hole 112 is also coaxially provided in the magnetic base 11, and the mounting hole 112 connects the top surface of the magnetic base 11 and the groove 111, and a sleeve 12 is fixedly connected in the mounting hole 112.

[0020] A guide shaft 21 is connected in a sliding and rotating manner in the sleeve 12, and the guide shaft 21 is relatively slidable and rotatable through the sleeve 12 and the magnetic base 11. A circular flange 211 is coaxially provided at the lower end of the guide shaft 21, and the flange 211 is located in the groove 111 of the magnetic base 11. A compression spring 22 is sleeved on the outer side of the guide shaft 21, one end of the compression spring 22 is against the flange 211, and the other end of the compression spring 22 is against the sleeve 12. If a compression spring with a larger diameter is selected, the other end of the compression spring can also be against the bottom surface of the groove of the magnetic base. As can be seen from the 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 makes the guide shaft 21 slide toward 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 fixedly connected with 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 fit together, 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 plate 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 the two 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 plate surface of the transfer plate 23. The positioning block 31 in this embodiment is directly made of magnetic material. In other embodiments, the positioning block can be made of non-magnetic material, and then a magnet is embedded at the bottom surface of the positioning block so that the edge of the bottom surface is magnetic.

[0022] A stop pin 32 is fixedly provided at the bottom surface of the positioning block 31. In this embodiment, the stop pin 32 adopts a cylindrical shaft pin, and the axis of the stop pin 32 is perpendicular to the bottom surface of the positioning block 31. The outer cylindrical surface of the magnetic base 11, the outer cylindrical surface of the transfer plate 23, the stop pin, and the outer cylindrical surface of the positioning block 31 are successively away from the axis of the guide shaft in the radial direction of the guide shaft. The diameter of the magnetic base 11 in this embodiment is smaller than the diameter of the transfer plate 23, and 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 on the outside of the cylindrical surface where the outer cylindrical surface of the transfer plate 23 is located, and is located on the inside of the cylindrical surface where the outer cylindrical surface of the positioning block 31 is located. 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, and the tension spring 33 makes the transfer plate 23 and the positioning block 31 always tend to approach. In this embodiment, within the range of the upward and downward 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, this requirement can be met if the elastic coefficient of the compression spring 22 is greater than the elastic coefficient of the tension spring 33. In this embodiment, the guide rod 25 is provided with a clamping groove continuously arranged along the axial direction of the guide rod 25, and two support rods 34 are hinged at the bottom surface of the positioning block 31. The swinging support rod 34 can make the lower ends of the two support rods 34 respectively clamped into the clamping grooves of the two guide rods 25.

[0023] The guide shaft 21 and the magnetic base 11 in this embodiment are connected by relative sliding and rotation through the sliding sleeve 12, which can make the guide shaft 21 slide more smoothly, and facilitate the guide shaft 21 and the transfer plate 23 connected to the guide shaft 21 to move up and down and rotate. It can be seen from the structure of this embodiment that whether the positioning block 31 and the transfer plate 23 are in a stationary state or in the process of moving up and down, the lower plate surface of the transfer 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 in this embodiment are evenly arranged, so that the force on the positioning block 31 is more balanced and the sliding is smoother.

[0024] like Figure 2 As shown, the assembled planetary gear 51 and planetary carrier 52 of a large planetary gear system are ready to be assembled into the inner gear ring 53. Both end faces of the inner gear ring 53 are perpendicular to the axis of the inner gear ring 53. First, the inner gear ring 53 is placed on a horizontal ground and positioned or fixed, and the axis of the inner gear ring 53 is kept in a vertical state. The assembled planetary gear 51 and planetary carrier 52 are hoisted directly above the inner gear ring 53 by a crane, and the lower end face of the teeth of the planetary gear 51 and the upper end face of the teeth of the inner gear ring 53 are as close as possible but not in contact, and at the same time, the axis of the planetary carrier 52 is ensured to remain in a vertical state.

[0025] The auxiliary installation mechanism of this embodiment is placed on the upper end surface of the inner gear ring 53 and the bottom surface of the magnetic base 11 is ensured to fit the upper end surface of the inner gear ring 53. Under the action of magnetic force, the magnetic base 11 can be adsorbed on the inner gear ring 53. Three planetary gears 51 are mounted on the planet carrier 52 of this embodiment, so three sets of auxiliary installation mechanisms are placed and adsorbed on the inner gear ring 53, and the three sets of auxiliary installation mechanisms are respectively opposite to the positions of the three planetary gears 51.

[0026] First, operate any one of the auxiliary installation mechanisms. Overcome the elastic force of the tension spring 33 and under the guidance of the guide rod 25, move the positioning block 31 upward, and move the magnetic base 11 along the end surface of the inner gear ring 53, so that the bottom surface of the positioning block 31 and the upper end surface of the teeth of the planetary gear 51 fit and absorb. Then swing the two support rods 34 so that the lower ends of the two support rods 34 are respectively inserted into the slots of the two guide rods 25 to support the positioning block 31 and prevent the positioning block 31 from moving downward. According to this method, operate the other two sets of auxiliary installation mechanisms one by one, so that the bottom surface of the positioning block 31 of each set of auxiliary installation mechanisms fits and absorbs the upper end surface of the teeth of the planetary gear 51. In this way, on the one hand, it can ensure that the tooth end surface of the planetary gear 51 and the tooth end surface of the inner gear ring 53 are parallel, and on the other hand, it can further ensure that the axis of the planetary carrier 52 and the axis of the inner gear ring 53 are parallel to each other.

[0027] After the positioning blocks 31 of the three sets of auxiliary installation mechanisms are all fitted and adsorbed to the planetary wheels 51, the support rod 34 can be swung to make the lower end of the support rod 34 disengage from the slot. At this time, because the planetary wheels 51 and the planetary carrier 52 are subjected to balanced force, there will be no problems such as downward movement of the positioning blocks 31, failure of fitting and adsorption, and tilting of the planetary wheels 51 and the planetary carrier 52. With the guidance of the six guide rods 25, the planetary wheels 51 and the planetary carrier 52 can move up and down smoothly and linearly within a certain range.

[0028] Then operate any one of the auxiliary installation mechanisms. Overcoming the effect of the compression spring 22, under the guidance of the guide shaft 21, move the transfer plate 23 upward and rotate, thereby driving the positioning block 31 to rotate, so that the stop pin 32 is stuck between two adjacent teeth on the planetary gear 51. After loosening the transfer plate 23, the transfer plate 23 moves downward under the action of the compression spring 22, so that the first friction pad 24 and the second friction pad 13 are re-fitted to prevent the transfer plate 23 and the magnetic base 11 from rotating relative to each other. During the up and down movement of the transfer plate 23, the height position of the positioning block 31 remains unchanged, that is, the bottom surface of the positioning block 31 and the upper end surface of the teeth of the planetary gear 51 always maintain a fitted and adsorbed state. During the rotation of the transfer plate 23, the teeth of the planetary gear 51 and the tooth grooves of the inner gear ring 53 can be aligned by observation or hanging wire. If necessary, the magnetic base 11 can be moved again along the end surface of the inner gear ring 53 to make fine adjustments to ensure that the teeth of the planetary gear 51 and the tooth grooves of the inner gear ring 53 are aligned. After the teeth of each planetary gear 51 and the tooth grooves of the inner gear ring 53 are aligned one by one, the planetary gear 51 and the planet carrier 52 can be slowly moved down, and the teeth of the planetary gear 51 can be smoothly inserted into the tooth grooves of the inner gear ring 53 to complete the assembly with the inner gear ring 53.

[0029] The above-mentioned operation steps are only the commonly used steps in practical production. In the case of clarifying the use principle, the steps can be rearranged as needed. After the two friction pads in this embodiment are fitted together, the friction between the contact surfaces can be greatly improved, thereby more effectively preventing the transfer plate 23 from rotating relative to the magnetic base 11, that is, further ensuring the limiting effect on the planetary gear 51. The function of the stop pin 32 in this embodiment is to be placed between two adjacent teeth of the planetary gear 51 to prevent the planetary gear 51 from rotating or swinging freely. The support rod 34 in this embodiment plays the role of temporarily auxiliary supporting the positioning block 31. In other embodiments, the locking clamp can also be slidably connected on the guide rod. The locking clamp is arranged between the positioning block and the transfer plate. The locking clamp can also be used for temporary auxiliary supporting the positioning block. In addition, the locking clamp can be kept at any position on the guide rod, and the scope of application is wider.

[0030] On the one hand, this embodiment can eliminate the influence of bearing clearance, so that the tooth end face of the planetary gear 51 and the tooth end face of the inner gear ring 53 are always kept parallel during assembly. On the other hand, the planetary gear 51 can be restricted to prevent the planetary gear 51 from rotating freely, so that the teeth of the planetary gear 51 and the tooth grooves of the inner gear ring 53 are always aligned during assembly, effectively avoiding the phenomenon of teeth and teeth hitting each other, making the assembly smoother and more convenient, and no need for multiple people to cooperate in the operation, even only one person is needed to complete the assembly work, which greatly reduces the difficulty of assembly. During assembly, there is no need for personnel to always straighten the planetary gear 51, eliminating safety hazards.

[0031] The above is only a 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 fall within the protection scope of the present invention.

Claims

1. A planetary gear auxiliary installation mechanism, characterized in that: The invention comprises a magnetic base, the bottom and top of which are both plane and parallel to each other, the bottom 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 of the magnetic base, an elastic component is arranged between the guide shaft and the magnetic base to make the guide shaft slide toward the bottom of the magnetic base, the upper end of the guide shaft is exposed on the top of the magnetic base and is fixedly connected to a transfer plate, the lower plate surface of the transfer plate is fitted with the top of the magnetic base under the action of the elastic component, and the transfer plate is fixedly connected to the transfer plate At least two guide rods are connected, and the center lines of all guide rods are perpendicular to the lower plate 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 plate surface of the transfer plate. The bottom edge of the positioning block is magnetic, and a stop pin is provided at 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 of the guide shaft. 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 is provided with a groove with an opening toward the bottom surface, and a flange is provided at the lower end of the guide shaft. The flange 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 is against the flange, and the other end of the compression spring is 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 is provided with a mounting hole whose axis is perpendicular to the bottom surface of the magnetic base. The mounting hole connects the top surface and the groove of the magnetic base. 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 is 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: A first friction pad is arranged on the lower plate surface of the transfer plate, and a second friction pad is arranged on the top surface with the magnetic base. Under the action of the elastic component, the first friction pad and the second friction pad are fitted together.

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

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

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