Pin pressing device for planet carrier

Abstract

The utility model discloses a pin pressing device for a planet carrier. The pin pressing device comprises a planet carrier supporting assembly and a pin pressing assembly, wherein the planet carrier supporting assembly at least comprises a supporting frame used for supporting the planet carrier; the pin shaft positioning assembly at least comprises a positioning plate for positioning a plurality of pin shafts; a plurality of guide holes which are matched with pin holes in the planet carrier in a one-to-one manner and are used for inserting pin shafts are pre-formed in the positioning plate; the positioning plate is suitable for being carried on the supporting frame; the pin pressing mechanism comprises a pressing head seat which is arranged above the planet carrier supporting assembly and is suitable for performing lifting motion, a pressing head which is arranged on the pressing head seat and is used for simultaneously jacking a plurality of pin shafts, and an elastic clamping jaw assembly which is used for lifting the pin shaft positioning assembly; the elastic clamping jaw assembly at least comprises a pair of clamping jaws which are symmetrically arranged on the two sides of the pressing head and suitable for conducting relative opening and clamping movement. The pair of clamping jaws is suitable for being opened relatively to be separated from the positioning plate, and the pair of clamping jaws is suitable for being clamped relatively to clamp and support the positioning plate so that the positioning plate can be separated from the bearing frame. The planet carrier press-fitting device improves press-fitting efficiency and is applicable to planet carriers of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary transmission structure processing, in particular to a planetary carrier pressing pin device. Background Art

[0002] Planetary gearing is a common reduction gear mechanism used in the terminal drives of large construction machinery. Its structure consists of a planetary carrier, planetary gears, and planetary shafts. The planetary shafts pass through the planetary gears and are fixed to the planetary carrier. The planetary shafts and planetary carrier typically have an interference fit.

[0003] In the prior art, locating pins are often manually installed by workers during installation. This presents the following problems: First, the locating pins are small, making them inconvenient to install. Second, after installation, the planetary gear with the locating pins needs to be transported to the equipment that rivets the locating pins. During this transport, the locating pins are relatively small and generally overfit into the pin holes, so they can fall out of the holes. Third, workers may miss some locating pins during installation.

[0004] Based on the above situation, announcement number CN216633304U discloses a press-fitting device for installing a planetary carrier pin shaft, which uses a planetary shaft pressing head to press-fit the planetary shaft. However, the pressing process can only press one planetary shaft at a time, so for multiple planetary shafts on the planetary carrier, there is still a problem of low pressing efficiency. In addition, for different types and models of planetary carriers, the sizes of the planetary shafts that need to be pressed are also different. Pressing the planetary shaft into the planetary carrier with a pressing head limits the size of the planetary shaft that the pressing head is applicable to, thereby limiting the types and models of planetary carriers that it can be used for.

[0005] Therefore, for the planetary carrier pressing pin device used in the prior art, its overall structure needs to be further optimized in order to improve the pressing efficiency and the range of applicable planetary carrier models. Utility Model Content

[0006] The purpose of the utility model is to provide a planet carrier pressing pin device to solve the technical problems of improving the pressing efficiency and the applicability to different models of planet carriers.

[0007] The planet carrier pressing pin device of the present utility model is realized as follows:

[0008] A planet carrier pressing pin device, comprising:

[0009] A planet carrier support assembly, comprising at least a support frame for supporting the planet carrier;

[0010] A pin positioning assembly, comprising at least a positioning plate for positioning a plurality of pins; the positioning plate being adapted to be mounted on a support frame; the positioning plate being pre-set with a plurality of guide holes for inserting the pins, which are matched one-to-one with the pin holes on the planetary carrier;

[0011] The pin pressing mechanism includes a pressure head seat disposed above the planetary carrier support assembly and adapted for lifting and lowering, a pressure head disposed on the pressure head seat for simultaneously pressing multiple pins, and an elastic claw assembly for lifting the pin positioning assembly; the elastic claw assembly includes at least a pair of claws symmetrically disposed on either side of the pressure head and adapted for relative opening and clamping motions;

[0012] The pair of claws are suitable for relatively opening to separate from the positioning plate, and the pair of claws are suitable for relatively clamping to clamp the positioning plate so that the positioning plate is separated from the supporting frame.

[0013] In an optional embodiment of the present invention, each claw is rotatably engaged with a claw seat provided beside the pressure head seat;

[0014] Each claw seat is formed with a movable cavity suitable for the rotation of the claw; and

[0015] Each claw is formed with a hook head extending out of the active cavity.

[0016] In an optional embodiment of the present invention, each of the claws is rotatably engaged with the movable cavity via a cycloid positioning pin; and

[0017] The clamping claw is provided with a matching hole for matching the cycloid positioning pin.

[0018] In an optional embodiment of the present invention, the clamping claw includes an integrally formed blocking rod located on one side of the matching hole and an extension rod located on the other side of the matching hole;

[0019] The hook head is formed at the end of the extension rod away from the blocking rod; and

[0020] The hook heads of the pair of clamping claws are bent toward one side of the pressing head relative to the extension rod.

[0021] In an optional embodiment of the present invention, each of the claws is further equipped with an elastic plug structure suitable for abutting against the extension rod;

[0022] The elastic plug structure includes a sliding rod with one end extending into the movable cavity for abutting the extension rod, a spring abutting against the end of the sliding rod facing away from the extension rod, and a plug abutting against the end of the spring facing away from the sliding rod;

[0023] A sliding cavity for accommodating a spring, a portion of the sliding rod and at least a portion of the plug is provided in the claw seat.

[0024] In an optional implementation of the present invention, the extension rod is provided with a limiting groove suitable for abutting and cooperating with the sliding rod.

[0025] In an optional implementation of the present invention, the claw seat is further equipped with a positioning bolt, and one end of the positioning bolt is adapted to extend into the movable cavity to abut against the blocking rod; and

[0026] The positioning bolt and the sliding rod are located on the same side of the claw.

[0027] In an optional implementation of the present invention, a limiting structure is further provided between the planet carrier support assembly and the pin shaft positioning assembly.

[0028] In an optional implementation of the present invention, the limiting structure includes at least one pair of bosses provided on the side end surface of the support frame facing the pressure head, and at least one pair of limiting holes provided on the positioning plate suitable for one-to-one insertion of the bosses.

[0029] In an optional embodiment of the present invention, at least one pair of oppositely arranged side edges of the positioning plate protrude from a pair of side edges of an end surface of the support frame supporting the planet carrier; and

[0030] A pair of protrusions on the side edges of the positioning plate are formed to form a force-bearing portion suitable for being clamped by a pair of claws.

[0031] In an optional implementation of the present invention, an inclined matching surface is formed between the side edge of each force-bearing portion facing the pressure head and the contact end surface of the hook head.

[0032] In an optional implementation of the present invention, the support is mounted on a support base; and

[0033] A pair of guide columns are provided between the pressure head seat and the support base, and spring columns suitable for telescopic deformation are sleeved on the guide columns.

[0034] By adopting the above technical solution, the utility model has the following beneficial effects: the planetary carrier pin pressing device of the utility model first forms a positioning and guiding function for multiple pin shafts to be pressed into the planetary carrier through a positioning plate, and then cooperates with the pressing head to press multiple pin shafts at the same time. On the one hand, it improves the efficiency of the simultaneous pressing operation of multiple pin shafts, and on the other hand, it can improve the accuracy of the process of pressing multiple pin shafts into the positioning plate.

[0035] Secondly, the designed elastic claw assembly can remove the positioning plate from the pin shaft after the pin shaft of the planetary carrier is pressed, thereby speeding up the speed of the planetary carrier from the support frame after the pin shaft is pressed, thereby improving the efficiency of the overall planetary carrier pressing operation.

[0036] In addition, for different planetary carriers, the specifications and sizes of the pins that need to be pressed are different. At this time, only the corresponding positioning plates need to be replaced. For the overall pressing pin mechanism, there is no need to adaptably replace it according to the situation of the pins that need to be pressed. Therefore, the applicability of the overall planetary carrier pressing device to different models of planetary carriers can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the overall structure of the planet carrier pressing pin device of the present utility model;

[0038] Figure 2 This is a structural diagram of the planetary carrier pressing pin device of the present invention when the claws are clamping the positioning plate;

[0039] Figure 3 This is a schematic structural diagram of the planet carrier pinning device of the present invention after the positioning plate and the planet carrier are separated;

[0040] Figure 4 This is a structural diagram of a pair of claws of the pinning mechanism of the planetary carrier pinning device of the present invention in a relatively clamped state;

[0041] Figure 5 This is a structural schematic diagram of the claws of the pinning mechanism of the planet carrier pinning device of the present invention;

[0042] Figure 6 This is a schematic structural diagram of a planet carrier to which the planet carrier pressing pin device of the present utility model is applicable;

[0043] Figure 7 This is a schematic diagram of the structure of the planet carrier pressing pin device of the utility model for placing the planet carrier on the support frame;

[0044] Figure 8 This is a schematic structural diagram of the planetary carrier pressing pin device of the present invention in which the positioning plate is placed on the support frame;

[0045] Figure 9 This is a structural diagram of the planetary carrier pin pressing device of the present invention inserting the pin into the positioning plate;

[0046] Figure 10 This is a structural schematic diagram of a pair of claws and an inclined matching surface of a positioning plate of a planetary carrier pressing pin device of the present invention;

[0047] Figure 11 This is a structural diagram of the press head of the planetary carrier pressing pin device of the present invention during press-fitting;

[0048] Figure 12 This is a structural schematic diagram of the planet carrier pinning device of the present invention when the pin shaft is pressed into the planet carrier.

[0049] In the figure: planetary carrier 11, sun gear 12, pin hole 13, pin shaft 2, supporting frame 3, boss 31, supporting base 4, positioning plate 5, guide hole 51, limiting hole 52, force-bearing part 53, pressure head seat 6, pressure head 61, claw seat 7, movable cavity 71, cycloid positioning pin 8, matching hole 91, hook head 92, blocking rod 93, extension rod 94, limiting groove 941, sliding cavity 101, sliding rod 102, spring 102, plug 103, positioning bolt 104, locking positioning nut 105, inclined adaptation surface K, guide column 201, spring column 202, hydraulic press 300. DETAILED DESCRIPTION

[0050] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0051] Example 1:

[0052] See also Figures 1 to 12 As shown, this embodiment provides a planet carrier pressing pin device, comprising: a planet carrier support assembly, a pin shaft positioning assembly and a pressing pin mechanism that are arranged in sequence from bottom to top for use.

[0053] Specifically, the planet carrier support assembly includes at least a support frame 3 for supporting the planet carrier 11; the support frame 3 is mounted on a support base 4. The support frame 3 can be detachably mounted on the support base 4, so that the support frame 3 can be replaced when it wears out or needs to be replaced according to the needs of the planet carrier 11.

[0054] Furthermore, the support frame 3 is provided with a positioning groove suitable for partially or entirely embedding the planet carrier 11, as well as a receiving groove suitable for inserting the sun gear 12 provided on the planet carrier 11. When the planet carrier 11 is fully embedded in the positioning groove, the end surface of the planet carrier 11 facing the pressing mechanism can optionally be flush with the end surface of the support frame 3 facing the pressing mechanism. Of course, the end surface of the planet carrier 11 facing the pressing mechanism can also be slightly concave relative to the end surface of the support frame 3 facing the pressing mechanism. This embodiment is not absolutely limited to this.

[0055] Next, let's talk about the pin positioning assembly, which at least includes a positioning plate 5 for positioning multiple pins 2; the positioning plate 5 is suitable for being mounted on the support frame 3. Specifically, here, when the planetary carrier 11 is entirely embedded in the positioning groove of the support frame 3, the positioning plate 5 is directly mounted on the support frame 3, and when the planetary carrier 11 is only partially embedded in the positioning groove, at this time, a groove suitable for the partial embedding of the planetary carrier 11 is provided on the end face of the positioning plate 5 facing the support frame 3, that is, for the planetary carrier 11 at this time, it still needs to be mounted on the support frame 3 to maintain the stability of its position state during use. Therefore, the accommodation of the entire planetary carrier 11 is achieved through the cooperation of the groove and the positioning groove, avoiding the protrusion of the planetary carrier 11 on the support frame 3 affecting the fit between the positioning plate 5 and the support frame 3.

[0056] On the basis of the above structure, it should be noted that the positioning plate 5 is pre-set with multiple guide holes 51 for inserting the pin shaft 2, which match the pin holes 13 on the planetary carrier 11 one to one; that is, in the process of pressing the pin shaft 2 into the planetary carrier 11, it is inserted into the planetary carrier 11 through the guide hole 51. Under this design, the positions of the multiple pin shafts 2 to be pressed can be pre-fixed under the action of the positioning plate 5, so as to facilitate the simultaneous pressing of the multiple pin shafts 2 into the planetary carrier 11 through the pin pressing mechanism, thereby improving the efficiency of the pressing operation of the multiple pin shafts 2.

[0057] In this regard, it should also be noted that for different planetary carriers 11, the specifications and sizes of the pin shaft 2 to be pressed in are different. At this time, it is only necessary to replace the corresponding positioning plate 5. In other words, as long as the guide hole 51 on the positioning plate 5 can be adapted to the pin shaft 2 to be pressed in on the planetary carrier 11, the use requirements of the present invention can be met.

[0058] Based on the above situation, in order to ensure that the guide hole 51 on the positioning plate 5 can be aligned with the pin hole 13 on the planetary carrier 11, and to prevent the positioning plate 5 from being offset during the press-fitting process, which would cause the pin 2 in the guide hole 51 to be unable to normally enter the pin hole 13 of the planetary carrier 11, a limiting structure is also provided between the planetary carrier support assembly and the pin positioning assembly in this embodiment. In this regard, with reference to the accompanying drawings, an optional implementation example is given, in which the limiting structure includes a pair of protrusions 31 provided on the side end surface of the support frame 3 facing the pressure head 61, and a pair of limiting holes 52 provided on the positioning plate 5 for the one-to-one insertion of the protrusions 31.

[0059] Next, what is to be explained is the pin pressing mechanism, which includes a pressure head seat 6 which is suitable for lifting and lowering movements and is arranged above the planetary carrier support assembly, as well as a pressure head 61 arranged on the pressure head seat 6 for simultaneously pressing multiple pin shafts 2 and an elastic claw assembly for lifting the pin shaft positioning assembly. The pressure head seat 6 here is also connected to a driver for driving the lifting and lowering movements relative to the planetary carrier support assembly, such as but not limited to a hydraulic press 300. When the pressure head seat 6 performs lifting and lowering movements, it can drive the pressure head 61 and the elastic claw assembly to perform lifting and lowering movements synchronously. For the pressure head 61 here, it can optionally be a detachable mating structure with the pressure head seat 6, so that when the pressure head 61 needs to be replaced, it is convenient to disassemble and assemble it with the pressure head seat 6.

[0060] The elastic claw assembly used in this embodiment includes at least a pair of claws symmetrically disposed on either side of the pressure head 61 and adapted to perform relative opening and clamping movements. The claws are adapted to relatively open to separate from the positioning plate 5, and to relatively clamp to retain the positioning plate 5 and release it from the support frame 3.

[0061] In more detail, an optional situation is given as an example in conjunction with the accompanying drawings. Each claw is rotatably matched with a claw seat 7 provided on the side of the pressure head seat 6; that is, a claw seat 7 is provided on both sides of the pressure head 61, and one claw seat 7 cooperates with one claw, and each claw seat 7 is formed with a movable cavity 71 suitable for the rotation of the claw. In order to facilitate the clamping of the positioning plate 5 by the claw, each claw is formed with a hook head 92 extending outward from the outside of the movable cavity 71. It should be noted that when the pressure head 61 is not pressing the pin shaft 2, that is, when the pin pressing mechanism is in a non-working state, the hook heads 92 of a pair of claws protrude from the end face of the pressure head 61 facing the planetary carrier support assembly.

[0062] Furthermore, it should be noted that each claw is rotatably engaged with the movable cavity 71 via the cycloid positioning pin 8; and the claw is provided with a mating hole 91 for mating with the cycloid positioning pin 8. The claw includes an integrally formed stopper 93 located on one side of the mating hole 91 and an extension rod 94 located on the other side of the mating hole 91; a hook head 92 is formed at the end of the extension rod 94 away from the stopper 93; and the hook heads 92 of a pair of claws are bent toward the pressure head 61 relative to the extension rod 94. It is also necessary to point out that the length of the stopper 93 is less than the length of the extension rod 94, and the claw as a whole forms a seesaw-like structure under the action of the cycloid positioning pin 8. The length of the extension rod 94 is designed to be greater than the length of the stopper 93, making the relative opening and clamping process of the claw more flexible.

[0063] Furthermore, it should be noted that, to facilitate the relative opening and clamping of the jaws, each jaw in this embodiment is also equipped with an elastic plug structure adapted to abut against the extension rod 94. This elastic plug structure comprises a sliding rod 102, one end of which extends into the movable cavity 71 to abut against the extension rod 94; a spring 102 abutting against the end of the sliding rod 102 facing away from the extension rod 94; and a plug 103 abutting against the end of the spring 102 facing away from the sliding rod 102. A sliding cavity 101 is provided within the jaw seat 7 to accommodate the spring 102, a portion of the sliding rod 102, and at least a portion of the plug 103. Preferably, the extension rod 94 is provided with a retaining groove 941 adapted to abut against the sliding rod 102, thereby ensuring a secure abutment between the extension rod 94 and the sliding rod 102. The sliding rod 102 is preferably a T-shaped structure, ensuring that it abuts against the extension rod 94 while retaining its position within the sliding cavity 101.

[0064] Based on the above, the claw seat 7 of this embodiment is further equipped with a positioning bolt 104, one end of which is adapted to extend into the movable cavity 71 to abut the blocking rod 93. The positioning bolt 104 and the sliding rod 102 are located on the same side of the claw. The positioning bolt 104 is fixed to the claw seat 7 by tightening the positioning nut 105, ensuring the stability of the positioning bolt 104 in the position of the claw seat 7.

[0065] Based on the above situation, when the pair of claw seats 7 are clamped relative to each other to achieve the clamping of the positioning plate 5, the positioning bolt 104 abuts against the blocking rod 93, and the sliding rod 102 abuts against the extension rod 94. When the pair of claws are opened relative to each other to separate from the positioning plate 5, the sliding rod 102 abuts against the extension rod 94, and the positioning bolt 104 separates from the blocking rod 93.

[0066] In addition to the above structure, it is also necessary to explain, with reference to the accompanying drawings, that a pair of oppositely arranged side edges of the positioning plate 5 protrude from a pair of side edges of the end surface of the support frame 3 that supports the planetary carrier 11. The positioning plate 5 protrudes from the pair of side edges of the support frame to form a force-bearing portion 53 suitable for being clamped by a pair of claws. The cam 92 is provided with a plurality of guide rails 96 which are provided on the planetary carrier 11 so that the guide rails 96 can be moved relative to each other without interfering with each other.

[0067] In summary, the specific use process of the planet carrier pressing pin device of this embodiment is as follows:

[0068] First, place the planet carrier 11 on the support frame 3. Then, place the positioning plate 5 on the support frame 3, aligning the guide hole 51 on the positioning plate 5 with the pin hole 13 on the planet carrier 11. The positioning post and the stop hole 52 cooperate to prevent the positioning plate 5 from shifting. Next, insert the pin 2 into the guide hole 51 on the positioning plate 5, aligning it with the pin hole 13 on the planet carrier 11. The pin 2 and planet carrier 11 are now aligned and ready for press assembly.

[0069] The pressure head seat 6 moves downward and moves toward the pin shaft 2 and the planetary carrier 11. As the pressure head seat 6 descends, the hook heads 92 of a pair of claws protrude from the end face of the planetary carrier support assembly toward the end face of the pressure head 61 toward the planetary carrier support assembly. When the hook heads 92 of the claws contact the positioning plate 5, there is still a certain distance between the pressure head 61 and the pin shaft 2. In this regard, the inclined matching surface of the hook heads 92 and the positioning plate 5 makes the pair of claws move relatively open under the support action of the positioning plate 5, and the spring 102 in the sliding cavity 101 is compressed and deformed, so that the claws and the pressure head 61 continue to move downward under the action of the pressure head seat 6, and when the hook heads 92 of the claws are separated from the positioning plate 5, under the action of the spring 102, the hook heads 92 of the pair of claws return to a relatively clamped state. When the pressing head 61 contacts the pin 2 , the pin 2 is pressed into the pin hole 13 of the planet carrier 11 as the pressing head 61 moves downward, thereby completing the press-fitting operation of the pin 2 on the planet carrier 11 .

[0070] After completing the press-fitting operation on the pin 2, the pressure head seat 6, together with the pressure head 61 and the claws, moves upward. At this time, since the hook heads 92 of the pair of claws are in a relatively clamped state, when the pair of claws move upward with the pressure head seat 6 and the hook heads 92 contact the bottom end surface of the positioning plate 5 toward the planetary carrier 11, the hook heads 92 of the pair of claws can lift the positioning plate 5 from the bottom surface of the positioning plate 5, so that the positioning plate 5 can move together with the upward movement of the pressure head seat 6, thereby realizing the separation of the positioning plate 5 and the pin 2, thereby realizing the rapid separation of the pin 2 and the positioning plate 5. When the pressure head seat 6 returns to its initial position, a force is manually applied to the pair of claws to make a relative opening movement, so that the positioning plate 5 is separated from the pair of claws, so that the positioning plate 5 can enter a new round of pressing operation on the planetary carrier.

[0071] Therefore, for the planetary carrier pin pressing device of this embodiment, the positioning plate 5 is first used to form a positioning and guiding function for the multiple pin shafts 2 to be pressed into the planetary carrier 11, and then the pressure head 61 is used to press the multiple pin shafts 2 at the same time. On the one hand, the efficiency of the simultaneous pressing operation of multiple pin shafts 2 is improved, and on the other hand, the accuracy of the process of pressing multiple pin shafts 2 into the positioning plate 5 can be improved.

[0072] Secondly, the designed elastic claw assembly can remove the positioning plate 5 from the pin shaft 2 after the pin shaft 2 of the planetary carrier 11 is pressed, thereby accelerating the speed of the planetary carrier 11 that has completed the press-fitting of the pin shaft 2 from the support frame 3, thereby improving the efficiency of the overall planetary carrier 11 pressing operation.

[0073] Example 2:

[0074] See also Figures 1 to 12As shown, based on the planetary carrier pinning device of Example 1, a pair of guide columns 201 are provided between the pressure head seat 6 and the support base 4 in the planetary carrier pinning device provided in this embodiment, and a spring column 202 suitable for telescopic deformation is provided on the guide column 201.

[0075] The spring column 202 designed in this embodiment can, on the one hand, prevent the pressing head 61 from exerting too much pressure on the pin 2 and causing damage to the pin 2, and on the other hand, improve the reset efficiency of the pressing mechanism after the pin 2 is press-fitted.

[0076] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0077] In the description of the present invention, it should be understood that the terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0078] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0079] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0080] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0081] In the present invention, unless otherwise expressly specified or limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A planet carrier pressing pin device, characterized in that: include: A planet carrier support assembly, comprising at least a support frame for supporting the planet carrier; A pin positioning assembly, comprising at least a positioning plate for positioning a plurality of pins; the positioning plate being adapted to be mounted on a support frame; the positioning plate being pre-set with a plurality of guide holes for inserting the pins, which are matched one-to-one with the pin holes on the planetary carrier; The pin pressing mechanism includes a pressure head seat disposed above the planetary carrier support assembly and adapted for lifting and lowering, a pressure head disposed on the pressure head seat for simultaneously pressing multiple pins, and an elastic claw assembly for lifting the pin positioning assembly; the elastic claw assembly includes at least a pair of claws symmetrically disposed on either side of the pressure head and adapted for relative opening and clamping motions; The pair of claws are suitable for relatively opening to separate from the positioning plate, and the pair of claws are suitable for relatively clamping to clamp the positioning plate so that the positioning plate is separated from the supporting frame.

2. The planet carrier pressing pin device according to claim 1, characterized in that: Each claw is rotatably engaged with a claw seat arranged beside the pressure head seat; Each claw seat is formed with a movable cavity suitable for the rotation of the claw; and Each claw is formed with a hook head extending out of the active cavity.

3. The planet carrier pressing pin device according to claim 2, characterized in that: Each of the claws is rotatably engaged with the movable cavity via a cycloid positioning pin; and The clamping claw is provided with a matching hole for matching the cycloid positioning pin.

4. The planet carrier pressing pin device according to claim 3, characterized in that: The claw includes an integrally formed blocking rod located on one side of the matching hole and an extension rod located on the other side of the matching hole; The hook head is formed at the end of the extension rod away from the blocking rod; and The hook heads of the pair of clamping claws are bent toward one side of the pressing head relative to the extension rod.

5. The planet carrier pressing pin device according to claim 4, characterized in that: Each of the claws is also equipped with an elastic plug structure suitable for abutting against the extension rod; The elastic plug structure includes a sliding rod with one end extending into the movable cavity for abutting the extension rod, a spring abutting against the end of the sliding rod facing away from the extension rod, and a plug abutting against the end of the spring facing away from the sliding rod; A sliding cavity for accommodating a spring, a portion of the sliding rod and at least a portion of the plug is provided in the claw seat.

6. The planet carrier pressing pin device according to claim 5, characterized in that: The extension rod is provided with a limiting groove suitable for abutting and cooperating with the sliding rod.

7. The planet carrier pressing pin device according to claim 5, characterized in that: The claw seat is further equipped with a positioning bolt, and one end of the positioning bolt is adapted to extend into the movable cavity to abut against the blocking rod; and The positioning bolt and the sliding rod are located on the same side of the claw.

8. The planet carrier pressing pin device according to any one of claims 2 to 7, characterized in that: A limiting structure is also provided between the planet carrier supporting assembly and the pin shaft positioning assembly.

9. The planet carrier pressing pin device according to claim 8, characterized in that: The limiting structure includes at least one pair of bosses provided on the side end surface of the support frame facing the pressure head, and at least one pair of limiting holes provided on the positioning plate suitable for one-to-one insertion of the bosses.

10. The planet carrier pressing pin device according to any one of claims 2 to 7, characterized in that: At least one pair of oppositely arranged side edges of the positioning plate protrude from a pair of side edges of the end surface of the support frame supporting the planet carrier; and A pair of protrusions on the side edges of the positioning plate are formed to form a force-bearing portion suitable for being clamped by a pair of claws.

11. The planet carrier pressing pin device according to claim 10, characterized in that: An inclined matching surface is formed between the side edge of each force-bearing portion facing the pressure head and the contact end surface of the hook head.

12. The planet carrier pressing pin device according to claim 1, characterized in that: The support is mounted on a support base; and A pair of guide columns are provided between the pressure head seat and the support base, and spring columns suitable for telescopic deformation are sleeved on the guide columns.

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