EMB planetary gear assembly device and working method thereof

Abstract

The present invention belongs to the technical field of engineering components, and in particular relates to an EMB planetary gear assembly device and a working method thereof. One type of EMB planetary gear assembly device comprises: a driving sleeve, which is rotatably arranged on a workbench; a positioning ring, which is lifted and lowered on the inner wall of the driving sleeve, wherein the inner wall of the positioning ring is evenly distributed with a plurality of protrusions circumferentially, and the protrusions are adapted to the rack of the outer gear ring; a plurality of positioning tubes, which are arranged along the axial direction of the driving sleeve and are used to position the planetary gears; a plurality of locking members, which are telescopically arranged in the positioning tubes; wherein, after the outer gear ring is placed horizontally on the positioning ring, the protrusions match the rack of the outer gear ring to align the axis of the outer gear ring; the positioning ring moves downward until the positioning tube protrudes from the outer gear ring, and each locking member retracts into the positioning tube, and the planetary gear sleeve is arranged on the outer wall of the positioning tube; the positioning ring drives the outer gear ring to move upward, and the locking members simultaneously extend outward to abut against the upper end wall of the planetary gear, and the axis alignment is maintained by the protrusions during the meshing process of the outer gear ring and the planetary gear.

Description

Technical Field

[0001] The present invention belongs to the technical field of engineering components, and specifically relates to a transmission device, and in particular to an EMB planetary gear assembly device and a working method thereof. Background Art

[0002] In the related art, the assembly steps of the planetary gear usually use the inner ring gear or the planetary carrier as the assembly reference, and calibrate the coaxiality with the reference surface through positioning pins.

[0003] When installing planetary gears, the planetary wheels are generally installed on the planetary carrier first, and then the outer ring gear is put on the planetary wheels. Using the above installation method, when installing the outer ring gear, the outer ring gear needs to be engaged and matched with multiple planetary gears at the same time. Therefore, if the outer ring gear tilts during installation, it will cause the outer ring gear to get stuck or cause tooth damage.

[0004] Therefore, how to avoid tooth damage when the outer ring gear is meshed with the planetary gear is a technical problem that needs to be solved urgently in this field.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of related technology. Summary of the Invention

[0006] The embodiments of the present disclosure at least provide an EMB planetary gear assembly device and a working method thereof.

[0007] In a first aspect, an embodiment of the present disclosure provides an EMB planetary gear assembly device, comprising:

[0008] a workbench on which an assembly device is provided;

[0009] A loading robot, which is provided on one side of the assembly device and is used to carry the planetary carrier;

[0010] The assembly device comprises:

[0011] A drive sleeve rotatably mounted on a workbench;

[0012] A positioning ring is provided on the inner wall of the driving sleeve, and a plurality of protrusions are evenly distributed on the inner wall of the positioning ring along the circumference, and the protrusions are adapted to the racks of the outer gear ring;

[0013] A plurality of positioning tubes are arranged along the axial direction of the driving sleeve and are used to position the planetary gears;

[0014] A plurality of locking members are telescopically arranged in the positioning tube;

[0015] The outer gear ring is placed horizontally behind the positioning ring, and the protrusion matches the rack of the outer gear ring to align the axis of the outer gear ring;

[0016] The positioning ring moves downward until the outer gear ring of the positioning tube protrudes, each locking member retracts into the positioning tube, and the planetary gear sleeve is installed on the outer wall of the positioning tube;

[0017] The positioning ring drives the outer gear ring to move upward, and the locking piece simultaneously extends outward until it abuts against the upper end wall of the planetary gear. During the meshing process of the outer gear ring and the planetary gear, the axial alignment is maintained by the protrusion.

[0018] In an optional embodiment, a plurality of retaining bars are provided on both sides of the protrusion and on the edge of the inner ring of the positioning ring;

[0019] Wherein, the outer gear ring is placed horizontally behind the positioning ring, and the rack of the outer gear ring protrudes from the various bumps;

[0020] The plurality of blocking bars are respectively in contact with the side walls of the rack and the side walls of the tooth groove of the outer gear ring to align with the axis of the outer gear ring.

[0021] In an optional embodiment, a linkage disk is fixed below the positioning ring, and the linkage disk is sleeved on the outer wall of each positioning tube and linked with the locking member;

[0022] When the driving sleeve rotates, the positioning ring and the linkage disk are driven to move downward synchronously, and the linkage disk drives each locking member to retract into the positioning tube.

[0023] In an optional embodiment, a limiting ring is sleeved on the outer wall of the positioning tube, and the limiting ring is located above the linkage disk;

[0024] The limiting ring is provided with a plurality of convex strips evenly distributed in the circumferential direction for limiting the rack on the outer wall of the planetary gear.

[0025] In an optional embodiment, a fixing column is provided in the positioning tube for lifting, and the upper end of the fixing column protrudes from the positioning tube;

[0026] The outer wall of the positioning tube is symmetrically provided with two adjustment grooves below the linkage disk;

[0027] The outer wall of the fixed column is symmetrically provided with an extension block, and the extension block is slidably arranged in the adjustment groove;

[0028] When the linkage disk moves downward, it pushes the extension block and the fixed column to move downward synchronously.

[0029] In an optional embodiment, the fixing column is provided with two symmetrical receiving grooves along the radial direction, and the locking member is slidably disposed in the receiving grooves;

[0030] A compression spring is provided in the receiving groove, one end of the compression spring abuts against the locking member, and the compression spring is suitable for pushing the locking member to slide outward and protrude from the outer wall of the fixing column.

[0031] In an optional embodiment, the bottom wall of the outer end of the locking member is provided with an arc surface, and the arc surface is suitable for abutting against the upper end wall of the positioning tube;

[0032] When the fixing column moves downward, the arc surface abuts against the upper end wall of the positioning tube, and the locking member shrinks into the accommodating groove.

[0033] In an optional embodiment, an oil storage cavity is defined in the locking member, and an oil hole is defined on the outer wall of the locking member, the oil hole being in communication with the oil storage cavity;

[0034] After the locking member is retracted into the receiving groove, the fixing column moves downward, and the lubricating oil flows into the oil storage chamber;

[0035] The positioning ring drives the outer gear ring to move upward, and the locking piece simultaneously extends outward until it abuts against the upper end wall of the planetary gear. The lubricating oil in the oil storage chamber flows to the rack where the planetary gear and the outer gear ring are meshed.

[0036] In an optional embodiment, the driving sleeve is filled with lubricating oil, and the linkage disk is provided with a plurality of through holes;

[0037] When the positioning ring drives the linkage plate to move downward, the lubricating oil flows to the outer gear ring through the through hole.

[0038] In an optional embodiment, the inner wall of the driving sleeve is provided with an internal thread, the outer wall of the positioning ring is provided with an external thread, and the internal thread is threadably engaged with the external thread.

[0039] In a second aspect, an embodiment of the present disclosure further provides a working method of an EMB planetary gear assembly device, the working method comprising:

[0040] The outer gear ring is placed horizontally behind the positioning ring, and the protrusion matches the rack of the outer gear ring to align the axis of the outer gear ring;

[0041] The positioning ring moves downward until the outer gear ring of the positioning tube protrudes, each locking member retracts into the positioning tube, and the planetary gear sleeve is installed on the outer wall of the positioning tube;

[0042] The positioning ring drives the outer gear ring to move upward, and the locking piece simultaneously extends outward until it abuts against the upper end wall of the planetary gear. During the meshing process of the outer gear ring and the planetary gear, the axial alignment is maintained by the protrusion.

[0043] The beneficial effect of the present invention is that it provides an EMB planetary gear assembly device and operating method. By engaging retaining bars with the rack of the outer ring gear, the outer ring gear is placed horizontally on a positioning ring. Each retaining bar abuts against the side walls of the rack and the side walls of the tooth grooves of the outer ring gear, aligning the axis of the outer ring gear and, consequently, the axis of the outer ring gear with the axes of the planetary gears, thereby preventing the outer ring gear from tilting during assembly. When the outer ring gear moves upward to engage the planetary gears, a locking member is adapted to limit the axial displacement of the planetary gears, preventing axial movement of the planetary gears during assembly and avoiding damage to the tooth surfaces of the planetary gears due to force offset during the meshing process.

[0044] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0047] Figure 1 A three-dimensional diagram of an EMB planetary gear assembly device provided in an embodiment of the present disclosure;

[0048] Figure 2 A perspective view of an assembly device provided in accordance with an embodiment of the present disclosure;

[0049] Figure 3 An internal cross-sectional view of an assembly device provided for an embodiment of the present disclosure;

[0050] Figure 4 A three-dimensional diagram of a fixing column and a locking member provided in an embodiment of the present disclosure;

[0051] Figure 5 A sectional perspective view of a positioning tube and a locking member provided in an embodiment of the present disclosure;

[0052] Figure 6 A schematic diagram showing a state where a locking member protrudes from a positioning tube according to an embodiment of the present disclosure;

[0053] Figure 7A schematic diagram of a locking member provided in an embodiment of the present disclosure being retracted into a receiving groove;

[0054] Figure 8 A three-dimensional view of a drive sleeve provided in an embodiment of the present disclosure.

[0055] In the picture:

[0056] 1. Workbench; 2. Loading robot;

[0057] 3. Assembly device; 31. Drive sleeve; 310. Internal thread;

[0058] 32. Positioning ring; 321. Protrusion; 322. Stop bar;

[0059] 33. Positioning tube; 331. Limiting ring; 332. Raised strip; 334. Adjusting groove; 335. Extension block;

[0060] 34. Locking member; 341. Arc surface; 342. Oil storage cavity; 343. Oil hole;

[0061] 35, linkage disk; 350, through hole;

[0062] 36. Return spring;

[0063] 37. Fixed column; 370. Accommodating slot; 371. Compression spring;

[0064] 4. Outer ring gear; 5. Planetary gear. DETAILED DESCRIPTION

[0065] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0066] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0067] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0068] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0069] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0070] Research has found that in related technologies, when installing planetary gears, the planetary wheels are generally installed on the planetary carrier first, and then the outer ring gear is put on the planetary wheels; using the above installation method, when installing the outer ring gear, the outer ring gear needs to be engaged and matched with multiple planetary wheels at the same time; therefore, if the outer ring gear tilts during installation, it will cause the outer ring gear to get stuck or cause tooth damage.

[0071] Therefore, how to prevent the outer gear ring from getting stuck when being inserted into the planetary gear is a technical problem that needs to be solved urgently in this field.

[0072] The defects in the above solutions and the causes of their occurrence are the results obtained by the inventors after practice and careful research. Therefore, the process of discovering the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0073] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it is not necessarily aligned for further definition and explanation in subsequent drawings.

[0074] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0075] like Figures 1 to 8 As shown, at least one embodiment provides an EMB planetary gear assembly device, comprising:

[0076] A workbench 1 is provided with an assembly device 3; a loading robot 2 is provided on one side of the assembly device 3 and is used to carry the planetary carrier; after the outer ring gear 4 is engaged with each planetary gear, the loading robot 2 carries the planetary carrier to the top of the assembly device 3 to realize the assembly of the planetary gear.

[0077] Reference Attachment Figure 2 The assembly device 3 includes a drive sleeve 31 rotatably mounted on the workbench 1; a drive motor is mounted on the bottom wall of the workbench 1 and is in driving connection with the drive sleeve 31. Preferably, the drive sleeve 31 is rotationally sealed from the workbench 1. Lubricating oil is filled into the drive sleeve 31, and a plurality of through-holes 350 are defined in the linkage disk 35. When the positioning ring 32 drives the linkage disk 35 downward, the lubricating oil flows through the through-holes 350 to the outer ring gear 4. When the drive motor rotates the drive sleeve 31, the lubricating oil in the drive sleeve 31 does not flow outward.

[0078] Continue to refer to the attached Figure 2 , the positioning ring 32 is set on the inner wall of the driving sleeve 31 for lifting, and a number of protrusions 321 are evenly distributed on the inner wall of the positioning ring 32 in the circumferential direction. The protrusions 321 are adapted to the racks of the outer gear ring 4, that is, when the outer gear ring 4 is placed horizontally on the positioning ring 32, a protrusion 321 corresponds to a rack on the inner side of the outer gear ring 4, and the setting of each stop bar 322 further limits each rack to ensure the horizontality of the outer gear ring 4 after placement and prevent the outer gear ring 4 from tilting; the inner wall of the driving sleeve 31 is provided with an internal thread 310, and the outer wall of the positioning ring 32 is provided with an external thread, and the internal thread 310 is threadedly engaged with the external thread.

[0079] Refer again to the attached Figure 2Several positioning tubes 33 are arranged axially along the drive sleeve 31 and are used to position the planetary gears. The planetary gears are adapted to fit within the outer walls of the positioning tubes 33. After the planetary gears are restrained by the retaining rings 331, the upper ends of the planetary gears protrude from the positioning tubes 33, facilitating the insertion of the planetary carrier into the planetary gears by the loading robot 2. The bottom walls of the positioning tubes 33 are fixed to the workbench 1. Several locking members 34 are telescopically disposed within the positioning tubes 33; these locking members 34 are used to retain the planetary gears. After the outer ring gear 4 is placed horizontally on the positioning ring 32, the protrusions 321 mate with the rack of the outer ring gear 4 to align the outer ring gear 4's axis, preventing it from tilting during placement and during lifting and lowering. A drive motor drives the drive sleeve 31 to rotate circumferentially, which in turn drives the positioning ring 32 to move up and down. The positioning ring 32 moves downward until the positioning tube 33 protrudes from the outer ring gear 4. The locking members 34 retract into the positioning tube 33, and the planetary gears are mounted on the outer wall of the positioning tube 33. At this point, the planetary gears are positioned above the outer ring gear 4. The positioning ring 32 drives the outer ring gear 4 upward, and the locking members 34 simultaneously extend outward to abut against the upper end wall of the planetary gears. During meshing of the outer ring gear 4 and the planetary gears, the protrusions 321 maintain the axis alignment. The locking members 34 are designed to limit the axial displacement of the planetary gears, preventing axial movement during assembly and avoiding damage to the tooth surfaces of the planetary gears due to force offset during meshing.

[0080] Reference Attachment Figure 2 Several bars 322 are provided on both sides of the protrusion 321 and on the inner edge of the positioning ring 32. When the outer ring gear 4 is placed horizontally on the positioning ring 32, the rack of the outer ring gear 4 protrudes from the protrusions 321. The bars 322 are located below the outer ring gear 4. When the outer ring gear 4 moves upward to engage the planetary gears, the bars 322 do not block the meshing of the outer ring gear 4 and the planetary gears. The bars 322 abut against the side walls of the rack and the side walls of the tooth groove of the outer ring gear 4 to align the axis of the outer ring gear 4. The provision of the bars 322 aligns the axis of the outer ring gear 4 with the axes of the planetary gears, preventing the outer ring gear 4 from tilting during assembly.

[0081] Reference Attachment Figure 3A linkage disc 35 is fixed below the positioning ring 32. The outer diameter of the linkage disc 35 is smaller than the inner diameter of the drive sleeve 31, and the linkage disc 35 is adapted to move up and down relative to the drive sleeve 31. The linkage disc 35 is sleeved on the outer wall of each positioning tube 33 and is adapted to move up and down relative to the positioning tube 33, and is linked to the locking member 34. When the drive sleeve 31 rotates, the positioning ring 32 and the linkage disc 35 are driven downward in tandem, and the linkage disc 35 drives the locking members 34 to retract into the positioning tube 33. After the locking members 34 are retracted into the positioning tube 33, the planetary gears are sleeved against the outer wall of the positioning tube 33. When the drive sleeve 31 rotates in the opposite direction, the positioning ring 32 drives the outer gear ring 4 upward, and the linkage disc 35 moves upward synchronously. The locking members 34 are pushed outward by the compression spring 371 until they abut against the upper end wall of the planetary gears, thereby limiting the position of the planetary gears and preventing axial movement during assembly.

[0082] Continue to refer to the attached Figure 3 To enhance the stability of the planetary gears during assembly, a retaining ring 331 is secured to the outer wall of the positioning tube 33. This retaining ring 331 is located above the linkage plate 35. The distance between the retaining ring 331 and the upper end wall of the positioning tube 33 is less than the axial length of the planetary gears. Several ridges 332 are evenly distributed circumferentially around the retaining ring 331 to retain the racks on the outer walls of the planetary gears. These ridges 332, when placed on the retaining ring 331, act as retaining devices for the planetary gears. This not only prevents the planetary gears from rotating during assembly, but also ensures that the axes of the outer ring gear 4 and the planetary gears are aligned during meshing. Furthermore, to facilitate meshing between the outer ring gear 4 and the planetary gears, once the planetary gears are retained by the ridges 332, the racks on the outer walls of the planetary gears closest to the outer ring gear 4 face the tooth grooves of the outer ring gear 4. As the outer ring gear 4 moves upward, the racks on the outer walls of the planetary gears engage with the tooth grooves on the inner wall of the outer ring gear 4, ensuring meshing between the two.

[0083] Reference Attachment Figure 3 A fixed post 37 is installed in the positioning tube 33 for lifting and lowering. The upper end of the fixed post 37 protrudes from the positioning tube 33. A return spring 36 is installed at the bottom of the fixed post 37. The return spring 36 is located in the positioning tube 33 and is adapted to push the fixed post 37 upward. When the positioning ring 32 drives the outer ring gear 4 upward, the return spring 36 pushes the fixed post 37 upward synchronously, allowing the locking member 34 to move above the positioning tube 33. At this time, the compression spring 371 is adapted to push the locking member 34 outward to limit the position of the planetary gears.

[0084] Continue to refer to the attached Figure 3Two adjustment slots 334 are symmetrically defined on the outer wall of the positioning tube 33, located below the linkage disk 35. These slots 334 extend axially along the positioning tube 33 and are located within the lubricating oil reservoir, ensuring that the positioning tube 33 is filled with lubricating oil. Extension blocks 335 are symmetrically defined on the outer wall of the fixing post 37, slidingly disposed within the adjustment slots 334. These extension blocks 335 protrude from the outer wall of the positioning tube 33. When the linkage disk 35 moves downward, it pushes the extension blocks 335 and the fixing post 37 downward synchronously. As the fixing post 37 retracts into the positioning tube 33, the locking member 34 simultaneously retracts into the accommodating slot 370.

[0085] Reference Attachment Figure 5 The fixing column 37 is provided with two symmetrical receiving grooves 370 along the radial direction, and the locking member 34 is slidably arranged in the receiving groove 370; a compression spring 371 is provided in the receiving groove 370, and one end of the compression spring 371 abuts against the locking member 34, and the compression spring 371 is suitable for pushing the locking member 34 to slide outward and protrude from the outer wall of the fixing column 37.

[0086] Reference Attachment Figure 4 The outer bottom wall of the locking member 34 is provided with an arcuate surface 341 adapted to abut against the upper end wall of the positioning tube 33. When the fixing post 37 moves downward, the arcuate surface 341 abuts against the upper end wall of the positioning tube 33. As the fixing post 37 continues to move downward, the positioning tube 33 squeezes the arcuate surface 341, causing the locking member 34 to retract into the receiving groove 370. The locking member 34 is always immersed in lubricating oil, which flows into the oil reservoir 342 through the oil hole 343.

[0087] Reference Attachment Figure 5 The locking member 34 has an oil storage chamber 342, and the outer wall of the locking member 34 has an oil hole 343, which is in communication with the oil storage chamber 342. After the locking member 34 is retracted into the accommodating groove 370, the fixing column 37 moves downward, and the lubricating oil flows into the oil storage chamber 342. The positioning ring 32 drives the outer gear ring 4 to move upward, and the locking member 34 simultaneously extends outward to abut against the upper end wall of the planetary gear. The lubricating oil in the oil storage chamber 342 flows to the rack where the planetary gear is meshed with the outer gear ring 4, further reducing the friction between the rack when the planetary gear is meshed with the outer gear ring 4.

[0088] Reference Attachment Figure 6 and Figure 7 After the outer gear ring 4 is placed horizontally into the positioning ring 32, the positioning ring 32 drives it to move downward. When the positioning ring 32 moves downward, it drives the linkage plate 35 to move downward synchronously. Figure 6F1 in the figure indicates that the fixing column 37 moves downward, and F2 indicates that the locking member 34 moves into the receiving groove 370. The locking member 34 is pushed inward and moves until it is completely retracted into the receiving groove 370. Figure 7 It shows the final resting position of the fixing column 37, at which time the locking member 34 is completely retracted into the receiving groove 370 and immersed in the lubricating oil.

[0089] At least one embodiment provides a working method of an EMB planetary gear assembly device, which includes: after the outer ring gear 4 is placed horizontally on the positioning ring 32, the protrusion 321 matches the rack of the outer ring gear 4 to align the axis of the outer ring gear 4; the positioning ring 32 moves downward until the positioning tube 33 protrudes from the outer ring gear 4, and each locking member 34 retracts into the positioning tube 33, and the planetary gear is sleeved on the outer wall of the positioning tube 33; the positioning ring 32 drives the outer ring gear 4 to move upward, and the locking member 34 synchronously extends outward to abut against the upper end wall of the planetary gear. During the engagement process between the outer ring gear 4 and the planetary gear, the protrusion 321 maintains the axis alignment.

[0090] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0091] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0092] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. An EMB planetary gear assembly device, characterized in that: include: A workbench (1) on which an assembly device (3) is provided; A loading robot (2), which is arranged on one side of the assembly device (3) and is used to carry the planetary carrier; The assembly device (3) comprises: A drive sleeve (31) rotatably mounted on the workbench (1); A positioning ring (32) is arranged on the inner wall of the driving sleeve (31) for lifting, and a plurality of protrusions (321) are evenly distributed on the inner wall of the positioning ring (32) in the circumferential direction, and the protrusions (321) are adapted to the racks of the outer gear ring (4); A plurality of positioning tubes (33) are arranged axially along the drive sleeve (31) and are used to position the planetary gears (5); A plurality of locking members (34) telescopically arranged in the positioning tube (33); Wherein, after the outer gear ring (4) is placed horizontally on the positioning ring (32), the protrusion (321) matches the rack of the outer gear ring (4) to align the axis of the outer gear ring (4); The positioning ring (32) moves downward until the outer gear ring (4) protrudes from the positioning tube (33), each locking member (34) shrinks into the positioning tube (33), and the planetary gear (5) is sleeved on the outer wall of the positioning tube (33); The positioning ring (32) drives the outer gear ring (4) to move upward, and the locking member (34) simultaneously extends outward until it abuts against the upper end wall of the planetary gear (5). During the meshing process between the outer gear ring (4) and the planetary gear (5), the axial alignment is maintained by the protrusion (321).

2. The EMB planetary gear assembly device according to claim 1, characterized in that: Stop bars (322) are provided on both sides of the protrusion (321) and the inner edge of the positioning ring (32); Wherein, after the outer gear ring (4) is placed horizontally on the positioning ring (32), the rack of the outer gear ring (4) protrudes from the protrusions (321); The plurality of retaining bars (322) respectively abut against the side walls of the rack and the side walls of the tooth groove of the outer gear ring (4) to align the axis of the outer gear ring (4).

3. The EMB planetary gear assembly device according to claim 1, wherein: A linkage disk (35) is fixed below the positioning ring (32), and the linkage disk (35) is sleeved on the outer wall of each positioning tube (33) and is linked to the locking member (34); When the driving sleeve (31) rotates, the positioning ring (32) and the linkage disk (35) are driven to move downward synchronously, and the linkage disk (35) drives each locking member (34) to retract into the positioning tube (33).

4. The EMB planetary gear assembly device according to claim 3, characterized in that: A limiting ring (331) is sleeved on the outer wall of the positioning tube (33), and the limiting ring (331) is located above the linkage disk (35); The limiting ring (331) has a plurality of convex strips (332) uniformly distributed in the circumferential direction, which are used to limit the rack on the outer wall of the planetary gear (5).

5. The EMB planetary gear assembly device according to claim 3, characterized in that: A fixing column (37) is provided in the positioning tube (33) for lifting, and the upper end of the fixing column (37) protrudes from the positioning tube (33); The outer wall of the positioning tube (33) is symmetrically provided with two adjustment grooves (334) below the linkage disk (35); An extension block (335) is symmetrically provided on the outer wall of the fixed column (37), and the extension block (335) is slidably provided in the adjustment slot (334); When the linkage disk (35) moves downward, it pushes the extension block (335) and the fixed column (37) to move downward synchronously.

6. The EMB planetary gear assembly device according to claim 5, characterized in that: The fixing column (37) is provided with two symmetrical receiving grooves (370) along the radial direction, and the locking member (34) is slidably arranged in the receiving grooves (370); A compression spring (371) is provided in the receiving groove (370), one end of the compression spring (371) abuts against the locking member (34), and the compression spring (371) is suitable for pushing the locking member (34) to slide outward and protrude from the outer wall of the fixing column (37).

7. The EMB planetary gear assembly device according to claim 6, characterized in that: The outer bottom wall of the locking member (34) is provided with an arc surface (341), and the arc surface (341) is suitable for abutting against the upper end wall of the positioning tube (33); When the fixing column (37) moves downward, the arc surface (341) abuts against the upper end wall of the positioning tube (33), and the locking member (34) shrinks into the accommodating groove (370).

8. The EMB planetary gear assembly device according to claim 7, wherein: An oil storage cavity (342) is provided in the locking member (34), an oil hole (343) is provided on the outer wall of the locking member (34), and the oil hole (343) is communicated with the oil storage cavity (342); After the locking member (34) is retracted into the receiving groove (370), the fixing column (37) moves downward, and the lubricating oil flows into the oil storage chamber (342); The positioning ring (32) drives the outer gear ring (4) to move upward, and the locking member (34) simultaneously extends outward to abut against the upper end wall of the planetary gear (5), and the lubricating oil in the oil storage chamber (342) flows to the rack where the planetary gear (5) and the outer gear ring (4) are meshed.

9. The EMB planetary gear assembly device according to claim 3, wherein: The driving sleeve (31) is filled with lubricating oil, and the linkage disk (35) is provided with a plurality of through holes (350); When the positioning ring (32) drives the linkage plate (35) to move downward, the lubricating oil flows toward the outer gear ring (4) through the through hole (350).

10. The EMB planetary gear assembly device according to claim 1, wherein: The inner wall of the driving sleeve (31) is provided with an internal thread (310), the outer wall of the positioning ring (32) is provided with an external thread, and the internal thread (310) is threadably engaged with the external thread.

11. A working method of an EMB planetary gear assembly device, characterized in that: Using the EMB planetary gear assembly device according to any one of claims 1 to 10, the working method includes: After the outer gear ring (4) is placed horizontally on the positioning ring (32), the protrusion (321) matches the rack of the outer gear ring (4) to align the axis of the outer gear ring (4); The positioning ring (32) moves downward until the outer gear ring (4) protrudes from the positioning tube (33), each locking member (34) shrinks into the positioning tube (33), and the planetary gear (5) is sleeved on the outer wall of the positioning tube (33); The positioning ring (32) drives the outer gear ring (4) to move upward, and the locking member (34) simultaneously extends outward until it abuts against the upper end wall of the planetary gear (5). During the meshing process between the outer gear ring (4) and the planetary gear (5), the axial alignment is maintained by the protrusion (321).

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