A mounting device for a planet carrier circlip

Abstract

The present application belongs to the technical field of planetary reducer assembly, and particularly relates to a mounting device for planet carrier clamping spring. A vertical first cylinder is mounted on a bottom frame; a piston rod of the first cylinder is connected with a first frame plate; a vertical second cylinder is mounted on the first frame plate; a clamping spring guide block is mounted on a top of a piston rod of the second cylinder; the clamping spring guide block is overall conical, a first mounting hole is formed in the middle of the clamping spring guide block, a first step in the form of a ring is formed by recessing an outer edge of a top of the clamping spring guide block; a clamping spring positioning plate is protruded from a side surface of the clamping spring guide block; a first fixed plate is mounted on a portal frame, two first sliding rails are mounted on the first fixed plate, a first sliding block is mounted on the first sliding rail, a second fixed plate is mounted on the first sliding block, a first angle iron is fixed on a surface of the second fixed plate, a third fixed plate is fixed on a bottom surface of the first angle iron, and a first supporting column is fixed on a bottom surface of the third fixed plate; the first supporting column is used for pressing a planetary reducer.

Description

Technical Field

[0001] This invention belongs to the field of planetary gearbox assembly technology, specifically relating to an installation device for a planetary carrier retaining spring. Background Technology

[0002] With the rapid development of electric drive systems, planetary gear reducers, characterized by their compact structure and large reduction ratio, are increasingly widely used in electric vehicle reducers. Multiple planetary gears need to be installed inside the planetary carrier. After the planetary gears are installed, snap rings need to be installed for limiting and fixing to prevent displacement or falling off during transmission. However, due to the small internal space of the planetary carrier after the planetary gears are installed, it is difficult to install snap rings connecting the planetary carrier and the input shaft.

[0003] Current staff use simple tools to slip the retaining ring onto the round bar and directly insert it into the planetary carrier. This can easily lead to the retaining ring deforming or improper installation, requiring adjustment of the retaining ring's angle. It can also cause scratches on parts during installation, resulting in low installation efficiency. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned background technology, the purpose of the present invention is to provide a planetary carrier retaining ring mounting device, which can meet the retaining ring mounting of the planetary carrier and the input shaft, reduce the difficulty of operation, and improve the assembly efficiency.

[0005] To solve the above-mentioned technical problems, the objective of this invention is achieved as follows: A mounting device for a planetary carrier circlip includes a base frame on which a vertical first cylinder is mounted; the piston rod of the first cylinder is connected to a first support plate. A vertical second cylinder is mounted on the first frame plate; a snap ring guide block is mounted on the top of the piston rod of the second cylinder; The snap ring guide block is generally conical, with a through first mounting hole in the middle, and the top outer edge of the snap ring guide block is recessed to form an annular first step; the side surface of the snap ring guide block has a snap ring positioning plate protruding. The planetary carrier circlip is inserted into the first step, and the opening of the planetary carrier circlip clamps the circlip positioning plate; A second frame is fixed above the first frame, and a first through hole is opened on the second frame. The planetary reducer is placed on the first through hole. A gantry is provided above the second frame, and a first fixed plate is installed on the gantry. Two first slide rails are installed on the first fixed plate, and a first slider is installed on the first slide rail. A second fixed plate is installed on the first slider. A first angle iron is fixed to the surface of the second fixed plate, and a third fixed plate is fixed to the bottom surface of the first angle iron. A first support column is fixed to the bottom surface of the third fixed plate. The first support column is used to press down on the planetary reducer.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: Two third cylinders are installed on the base frame, and the two third cylinders are located on both sides of the first cylinder; the piston rods of the two third cylinders are connected to a third frame plate, and two first clamping plates with a cross-section of 7 are fixed on the upper surface of the third frame plate. The first clamping plates pass through the second frame plate to fit the planetary reducer.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: The piston rod of the second cylinder is connected to the three-jaw clamp through the first coupling, and the bolt passes through the first coupling and is connected and fixed to the three-jaw clamp; the three-jaw clamp includes a first connecting block, the bottom surface of the first connecting block is provided with a first stepped hole, and the edge of the first connecting block has three equidistant first claw strips protruding from it, and the first claw strips are in contact with the outer surface of the snap ring guide block; It also includes a socket; the socket includes a second connecting block, the bottom surface of the second connecting block is recessed to form a first connecting pit; the top surface of the second connecting block has a first insert protruding in the middle; It also includes a first connecting post, the bottom of which is inserted into the first stepped hole and fixed by a connecting bolt, and the top of which is inserted into the first mounting pit for connection and fixation. The insertion platform is located between the three first claw bars, and the first insertion post is inserted into the first mounting hole of the snap ring guide block for fixation.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the inner wall of the first mounting hole is recessed to form a first positioning groove; the outer surface of the snap ring guide block is provided with a first clearance groove.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: A first slot is provided on the first claw bar.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: a first spring is held between the first connecting block and the second connecting block, and the first spring is fitted into the first connecting post.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: A positioning mechanism is installed on the second through hole of the second frame plate; the positioning mechanism includes a positioning plate, a third through hole is opened in the middle of the positioning plate, a first support block protrudes upward from the edge of the third through hole, and a first positioning block protrudes from the inner side of the top surface of the first support block; a bolt passes through the positioning plate and is connected and fixed to the second frame plate, the third through hole is directly opposite the second through hole, the first support block supports the outer surface of the planetary carrier, and the first positioning block is inserted into the planetary carrier.

[0012] The outstanding and beneficial technical effects of this invention compared to the prior art are: The planetary carrier circlip mounting device of the present invention, compared with the prior art, The planetary carrier retaining ring is fitted onto the first step of the retaining ring guide block, clamping the retaining ring positioning plate and completing the fixation. The planetary reducer with the planetary gears already installed is placed on the first through hole of the second carrier plate. The first slider is moved, driving the first support column to move directly above the planetary reducer. The first cylinder is activated, and the piston rod of the first cylinder extends upward, driving the first carrier plate, the second cylinder, and the retaining ring guide block to move upward synchronously, so that the conical tip of the retaining ring guide block is inserted into the bottom of the planetary reducer and extends into the internal space of the planetary carrier until the planetary carrier retaining ring on the retaining ring guide block is aligned with the retaining groove inside the planetary carrier. The second cylinder is activated, and the piston rod of the second cylinder extends upward, driving the retaining ring guide block to continue moving upward. At the same time, the retaining ring, blocked by the retaining groove, falls off the first step and is inserted into the retaining groove of the planetary carrier, completing the retaining ring installation. The piston rods of the second cylinder and the first cylinder retract, the retaining ring guide block moves downward, and the installed planetary reducer can be removed.

[0013] This design avoids requiring workers to operate in the narrow interior space of the planetary carrier for extended periods, and solves the problem of difficult planetary carrier circlip installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall installation structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the snap ring guide block structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the bottom structure of the three-jaw clamp of the present invention.

[0018] Figure 5 This is a schematic diagram of the three-jaw clamp structure of the present invention.

[0019] Figure 6 This is a schematic diagram of the bottom structure of the insertion platform of the present invention.

[0020] Figure 7 This is a schematic diagram of the insertion platform structure of the present invention.

[0021] Figure 8 This is a schematic diagram of the positioning mechanism structure of the present invention.

[0022] Figure 9 This is a partial structural schematic diagram of the present invention.

[0023] Figure 10 This is a partial cross-sectional structural schematic diagram of the present invention.

[0024] Figure 11 This is a schematic diagram of the planetary reducer structure of the present invention.

[0025] Reference numerals: Base frame 01; First cylinder 02; First support plate 03; Second cylinder 04; First coupling 040; Snap ring guide block 05; First mounting hole 050; First positioning groove 0500; First step 051; First clearance groove 0510; Snap ring positioning plate 052; Second support plate 06; First through hole 060; Gantry 07; First fixing plate 070; First slide rail 071; First slider 072; Second fixing plate 073; First angle iron 074; Third fixing plate 075; First support column 076; Third cylinder 08; Third support plate 09; First clamping plate 090; Three-jaw clamp 10; First connecting block 100; First step hole 1000; First claw bar 101; First gap 1010; Insertion platform 11; Second connecting block 110; First connecting pit 1100; First insertion post 111; First connecting post 12; First spring 13; Positioning mechanism 14; Positioning plate 140; Third through hole 141; First support block 142; First positioning block 143; Planetary carrier 20; Planetary carrier retaining ring 30; Planetary reducer 40. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments; This embodiment provides an installation device for a planetary carrier spring, including a base frame 01, which is welded from square tubing and steel plate, serving as the basic frame of the entire device; a vertical first cylinder 02 is installed on the base frame 01, and bolts pass through the housing of the first cylinder 02 for fixation, and the piston rod of the first cylinder 02 extends and retracts downwards; the piston rod of the first cylinder 02 is connected to a first support plate 03; the first support plate 03 is plate-shaped, and the first cylinder 02 drives it to move up and down; Preferably, in order to make the first frame plate 03 move smoothly, a guide post is fixed on the base frame 01 and inserted into the first frame plate 03 to play a limiting role; A vertical second cylinder 04 is installed on the first frame plate 03, and the outer shell of the second cylinder 04 is fixed on the first frame plate 03; a snap ring guide block 05 is installed on the top of the piston rod of the second cylinder 04; the snap ring guide block 05 is used to place and guide the snap ring 30 of the planetary carrier 20.

[0027] The snap ring guide block 05 is conical in shape and is integrally machined into a conical shape to facilitate insertion into the planetary carrier 20. A through first mounting hole 050 is provided in the middle of the snap ring guide block 05, and the outer edge of the top of the snap ring guide block 05 is recessed to form an annular first step 051. A snap ring positioning plate 052 protrudes from the side surface of the snap ring guide block 05. The planetary carrier 20 and the retaining ring 30 are fitted onto the first step 051, and the opening of the retaining ring 30 clamps the retaining ring positioning plate 052. The size of the first step 051 is adapted to the inner diameter of the retaining ring 30 of the planetary carrier 20, so that the retaining ring 30 of the planetary carrier 20 can fit perfectly onto the first step 051, thus achieving the initial fixation of the retaining ring. The thickness of the retaining ring positioning plate 052 is adapted to the opening width of the retaining ring 30 of the planetary carrier 20, preventing the retaining ring 30 of the planetary carrier 20 from rotating.

[0028] A second frame plate 06 is fixed above the first frame plate 03. A square tube is fixed on the base frame 01 to connect the second frame plate 06. A first through hole 060 is opened on the second frame plate 06. The planetary reducer 40 is placed on the first through hole 060. The shape and size of the first through hole 060 are adapted to the bottom opening of the planetary reducer 40. The second frame plate 06 supports the planetary reducer 40. Above the second frame plate 06 is a gantry 07, which is shaped like a door frame and is constructed by welding square tubing together. A first fixing plate 070 is installed on the gantry 07. A first fixing plate 070 is welded or bolted to the top crossbeam of the gantry 07. Two first slide rails 071 are installed on the first fixing plate 070, arranged parallel to each other. A first slider 072 is installed on the first slide rails 071, allowing the first slider 072 to move horizontally relative to the first slide rails 071. A second fixing plate 073 is installed on the first slider 072, and bolts pass through the second fixing plate 073 to connect and fix it to the first slider 072. A first angle iron 074 is fixed to the surface of the second fixing plate 073. The first angle iron 074 is triangular or L-shaped to ensure stability. A third fixing plate 075 is fixed to the bottom surface of the first angle iron 074. The third fixing plate 075 is welded or bolted to the first angle iron 074. A first support column 076 is fixed to the bottom surface of the third fixing plate 075. Bolts pass through the third fixing plate 075 and are vertically connected and fixed to the top of the first support column 076. The bottom end of the first support column 076 is aligned with the center position of the first through hole 060. The first support column 076 is used to press down on the planetary reducer 40 to prevent displacement during the installation of the planetary carrier 20 and the retaining spring 30.

[0029] As described above, in the specific usage process, the planetary carrier 20 and the retaining ring 30 are fitted onto the first step 051 of the retaining ring guide block 05, clamping the retaining ring positioning plate 052 to complete the fixation; the planetary reducer 40 with the planetary gears installed is placed on the first through hole 060 of the second bracket plate 06; the first slider 072 is moved, driving the first support column 076 to move directly above the planetary reducer 40; the first cylinder 02 is activated, and the piston rod of the first cylinder 02 extends upward, driving the first bracket plate 03, the second cylinder 04, and the retaining ring guide block 05 to move upward synchronously, so that the retaining ring guide block 05... The conical tip is inserted into the bottom of the planetary reducer 40, extending into the internal space of the planetary carrier 20, until the circlip 30 of the planetary carrier 20 on the circlip guide block 05 aligns with the circlip groove inside the planetary carrier 20; the second cylinder 04 is activated, and the piston rod of the second cylinder 04 extends upward, driving the circlip guide block 05 to continue moving upward. At the same time, the circlip, blocked by the circlip groove, falls off from the first step 051 and snaps into the circlip groove of the planetary carrier 20, completing the circlip installation; the piston rods of the second cylinder 04 and the first cylinder 02 retract, the circlip guide block 05 moves downward, and the installed planetary reducer 40 can be removed.

[0030] Furthermore, two third cylinders 08 are installed on the base frame 01, and the two third cylinders 08 are located on both sides of the first cylinder 02; the piston rods of the two third cylinders 08 are connected to a third bracket plate 09, and two first clamping plates 090 with a cross-section of 7 are fixed on the upper surface of the third bracket plate 09. The first clamping plates 090 pass through the second bracket plate 06 to fit the planetary reducer 40.

[0031] As described above, the bolt passes through the housing of the third cylinder 08 and is connected and fixed to the base frame 01 to maintain stability; the third frame plate 09 is located between the first frame plate 03 and the second frame plate 06, and the three are arranged in parallel; the bottom of the first clamping plate 090 is welded or bolted to the third frame plate 09, and the top of the first clamping plate 090 extends upward through the second frame plate 06. When the planetary reducer 40 is placed on the first through hole 060 of the second bracket plate 06, the two third cylinders 08 are activated. The piston rods of the third cylinders 08 retract downwards, causing the third bracket plate 09 and the two first clamping plates 090 to move downwards synchronously until the tops of the two first clamping plates 090 hook and fit tightly against the housing of the planetary reducer 40, thereby fixing the planetary reducer 40 on the second bracket plate 06 and preventing it from shifting during the installation of the planetary carrier 20 and the retaining spring 30, thus improving the accuracy of the installation. After the planetary carrier 20 and snap ring 30 are installed, the piston rod of the third cylinder 08 extends and resets, driving the first snap plate 090 to move upward and separate from the planetary reducer 40.

[0032] Furthermore, the piston rod of the second cylinder 04 is connected to the three-jaw clamp 10 through the first coupling 040, and the bolt passes through the first coupling 040 to connect and fix it to the three-jaw clamp 10; the bolt passes through the reserved hole of the first coupling 040 and is threadedly connected and fixed to the three-jaw clamp 10. The three-jaw clamp 10 includes a first connecting block 100. The bottom surface of the first connecting block 100 has a first step 051 hole 1000. Three first claw bars 101 are equidistantly distributed on the edge of the first connecting block 100. The first claw bars 101 are in contact with the outer surface of the snap ring guide block 05. The three first claw bars 101 are evenly distributed around the center of the first connecting block 100. It also includes a insertion platform 11; the insertion platform 11 includes a second connecting block 110, the bottom surface of the second connecting block 110 is recessed to form a first connecting pit 1100; the top surface of the second connecting block 110 has a first insertion post 111 protruding in the middle; the size of the first insertion post 111 is adapted to the first mounting hole 050 of the snap ring guide block 05 for insertion and fixing. It also includes a first connecting post 12, which is cylindrical; the bottom of the first connecting post 12 is inserted into the hole 1000 of the first step 051 and is limited by a connecting bolt to prevent the first connecting post 12 from falling off, and can move up and down within the hole 1000 of the first step 051; the top of the first connecting post 12 is inserted into the first mounting pit for connection and fixation; and is fixed by bolts or interference fit. The insertion platform 11 is located between the three first claw bars 101, and the first insertion post 111 is inserted into the first mounting hole 050 of the snap ring guide block 05 for fixation.

[0033] As described above, the first insertion post 111 of the insertion platform 11 is inserted into the first mounting hole 050 of the retaining ring guide block 05; the retaining ring guide block 05 moves upward, and the three-jaw clamp 10 holds the retaining ring 30 of the planetary carrier 20 stationary; the retaining ring guide block 05 is inserted into the planetary carrier 20, the retaining ring 30 of the planetary carrier 20 is installed in place, the first claw bar 101 supports and fixes it, and the retaining ring guide block 05 smoothly moves downward and exits.

[0034] Furthermore, the inner wall of the first mounting hole 050 is recessed to form a first positioning groove 0500; the outer surface of the snap ring guide block 05 is provided with a first clearance groove 0510.

[0035] As described above, the first recessed groove 0510 is arc-shaped and corresponds to the planetary gear, thus preventing the snap ring guide block 05 from colliding and being damaged by the planetary gear.

[0036] Furthermore, a first slot 1010 is provided on the first claw bar 101.

[0037] As described above, the first claw bar 101 has a vertical first slot 1010 with a width of 1-2 mm; it is elastic.

[0038] Furthermore, a first spring 13 is clamped between the first connecting block 100 and the second connecting block 110, and the first spring 13 is fitted into the first connecting post 12.

[0039] As described above, the first spring 13 can act as a buffer, and can be compressed and deformed during the upward movement of the device to absorb the impact force; when the snap ring guide block 05 moves downward, it can achieve the material removal effect.

[0040] Furthermore, a positioning mechanism 14 is installed on the second through hole of the second frame plate 06; the positioning mechanism 14 includes a positioning disk 140, and bolts pass through the positioning disk 140 to fix it on the second frame plate 06. A third through hole 141 is opened in the middle of the positioning disk 140, and the third through hole 141 corresponds to the first through hole 060 to ensure that the snap ring guide block 05 passes through smoothly. The edge of the third through hole 141 protrudes upward with a first support block 142, and the inner side of the top surface of the first support block 142 protrudes with a first positioning block 143. The outer surface of the first positioning block 143 is maintained. Bolts pass through the positioning plate 140 and are connected and fixed to the second frame plate 06. The third through hole 141 is directly opposite the second through hole. The first support block 142 supports the outer surface of the planetary carrier 20, and the first positioning block 143 is inserted into the planetary carrier 20.

[0041] Preferably, the three first support blocks 142 are evenly distributed.

[0042] As described above, bolts are passed through the pre-drilled holes in the positioning plate 140 and threadedly connected to the second support plate 06 to securely fix the positioning mechanism 14 onto the second support plate 06, ensuring that the third through hole 141 is aligned and concentric with the first through hole 060. In use, the planetary reducer 40 is placed on the positioning plate 140, the top surface of the first support block 142 rests against the surface of the planetary carrier 20, and the first positioning block 143 is inserted into the inner wall of the planetary carrier 20, positioning the planetary carrier 20 from both the inside and outside. This ensures that the circlip groove inside the planetary carrier 20 is precisely aligned with the circlip guide block 05, solving the problem of installation misalignment and further improving assembly quality.

[0043] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In this invention, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw-in," etc., should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection. The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A mounting device for a planetary carrier circlip, characterized in that: Includes a base frame, on which a vertical first cylinder is mounted; the piston rod of the first cylinder is connected to a first frame plate; A vertical second cylinder is mounted on the first frame plate; a snap ring guide block is mounted on the top of the piston rod of the second cylinder; The snap ring guide block is generally conical, with a through first mounting hole in the middle, and the top outer edge of the snap ring guide block is recessed to form an annular first step; the side surface of the snap ring guide block has a snap ring positioning plate protruding. The planetary carrier circlip is inserted into the first step, and the opening of the planetary carrier circlip clamps the circlip positioning plate; A second frame is fixed above the first frame, and a first through hole is opened on the second frame. The planetary reducer is placed on the first through hole. A gantry is provided above the second frame, and a first fixed plate is installed on the gantry. Two first slide rails are installed on the first fixed plate, and a first slider is installed on the first slide rail. A second fixed plate is installed on the first slider. A first angle iron is fixed to the surface of the second fixed plate, and a third fixed plate is fixed to the bottom surface of the first angle iron. A first support column is fixed to the bottom surface of the third fixed plate. The first support column is used to press down on the planetary reducer.

2. The mounting device for the planetary carrier circlip according to claim 1, characterized in that: Two third cylinders are installed on the base frame, located on both sides of the first cylinder; the piston rods of the two third cylinders are connected to a third frame plate, and two first clamping plates with a cross-section of 7 are fixed on the upper surface of the third frame plate. The first clamping plates pass through the second frame plate to fit the planetary reducer.

3. The mounting device for the planetary carrier circlip according to claim 1, characterized in that: The piston rod of the second cylinder is connected to the three-jaw clamp via the first coupling. The bolt passes through the first coupling and is connected and fixed to the three-jaw clamp. The three-jaw clamp includes a first connecting block. The bottom surface of the first connecting block has a first stepped hole. The edge of the first connecting block has three equidistant first claw strips. The first claw strips are in contact with the outer surface of the snap ring guide block. It also includes a socket; the socket includes a second connecting block, the bottom surface of the second connecting block is recessed to form a first connecting pit; the top surface of the second connecting block has a first insert protruding in the middle; It also includes a first connecting post, the bottom of which is inserted into the first stepped hole and fixed by a connecting bolt, and the top of which is inserted into the first mounting pit for connection and fixation. The insertion platform is located between the three first claw bars, and the first insertion post is inserted into the first mounting hole of the snap ring guide block for fixation.

4. The mounting device for the planetary carrier circlip according to claim 3, characterized in that: The inner wall of the first mounting hole is recessed to form the first positioning groove; the outer surface of the snap ring guide block is provided with the first clearance groove.

5. The mounting device for the planetary carrier circlip according to claim 3, characterized in that: The first claw bar has a first slot.

6. The mounting device for the planetary carrier circlip according to claim 3, characterized in that: A first spring is held between the first connecting block and the second connecting block, and the first spring is fitted into the first connecting post.

7. The mounting device for the planetary carrier circlip according to claim 1, characterized in that: A positioning mechanism is installed on the second through hole of the second frame plate; the positioning mechanism includes a positioning plate, a third through hole is opened in the middle of the positioning plate, a first support block protrudes upward from the edge of the third through hole, and a first positioning block protrudes from the inner side of the top surface of the first support block; a bolt passes through the positioning plate and is connected and fixed to the second frame plate, the third through hole is directly opposite the second through hole, the first support block supports the outer surface of the planetary carrier, and the first positioning block is inserted into the planetary carrier.

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