A multi-stage parallel gapless rotating structure

Abstract

This invention provides a multi-stage parallel backlash-free rotating structure, including an orthogonal transmission assembly. The orthogonal transmission assembly comprises an orthogonal gearbox, five transmission shafts, two shaft elastic retaining rings, two hole elastic retaining rings, five backlash-eliminating gears, locking screws, elastic washers, and two rolling bearings. The orthogonal gearbox has an internal mounting cavity. This invention achieves synchronous output from multiple power sources by driving the transmission shafts of the orthogonal transmission assembly synchronously with a single drive motor. Its technical advantages include: each orthogonal transmission assembly's transmission shaft applies elastic clamping force to the two rolling bearings axially via elastic washers between them, thereby eliminating axial and radial backlash in the rolling elements; simultaneously, the internal backlash-eliminating gear misalignment structure eliminates gear tooth backlash, achieving backlash-free precision rotation and ensuring good synchronization, low noise, and smoothness of each rotating mechanism.

Description

Technical Field

[0001] This utility model relates to a rotating structure, specifically a multi-stage parallel gapless rotating structure, belonging to the field of drive mechanism technology. Background Technology

[0002] As industries expand and market demand grows, manufacturing companies are placing increasingly higher demands on the efficiency, precision, and economy of automated equipment. This necessitates highly efficient, precise, and economical automated equipment. A common requirement is to improve production efficiency by enabling automated equipment to operate in multiple parallel stages, such as performing multi-stage synchronous rotation.

[0003] Defects and shortcomings of existing technology:

[0004] The common practice of existing equipment is that one power input controls only one action output. The number of power inputs is required for each action output. This method has high precision, but the more workstations there are, the more complex the structure of the equipment becomes, and the higher the manufacturing cost, which increases the user's procurement cost.

[0005] Alternatively, multi-stage gear linkage can be used to achieve multiple identical action outputs from a single power input. However, ordinary gear transmission has low transmission accuracy due to tooth backlash, and noise and vibration are generated due to the collision of gear teeth at high speeds. This leads to low rotational synchronization of each stage, meaning that the rotation angles of each stage are not the same, thus affecting the performance.

[0006] To address this, a multi-stage parallel gapless rotating structure is proposed. Utility Model Content

[0007] In view of this, the present invention provides a multi-stage parallel gapless rotating structure to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0008] The technical solution of this utility model embodiment is implemented as follows: a multi-stage parallel backlash-free rotating structure includes an orthogonal transmission assembly, wherein the orthogonal transmission assembly includes an orthogonal gearbox, five transmission shafts, two shaft elastic retaining rings, two hole elastic retaining rings, five backlash-free gears, locking screws, elastic washers, and two rolling bearings;

[0009] The orthogonal gearbox has an internal mounting cavity, and all five drive shafts are located inside the mounting cavity. Two of the shafts are mounted on the outer wall of the drive shaft with elastic retaining rings. Two holes are fitted onto the outside of the drive shaft with elastic retaining rings and installed on the inner wall of the mounting cavity. The drive shaft is mounted inside the mounting cavity through two rolling bearings. The elastic washer is fitted onto the outer wall of the drive shaft and located between the two rolling bearings. The backlash-free gear is fixedly connected to the outer wall of the drive shaft with locking screws. The five backlash-free gears are sequentially meshed and connected.

[0010] More preferably, all five backlash-eliminating gears are located inside the mounting cavity.

[0011] More preferably, the end of the drive shaft away from the backlash-free gear is located outside the orthogonal gearbox.

[0012] More preferably, a drive mechanism is provided on the outside of the orthogonal transmission assembly;

[0013] The drive mechanism includes a drive motor, a motor base, and a first coupling;

[0014] The drive motor is mounted on a motor mount, and the first coupling is mounted on the output shaft of the drive motor.

[0015] More preferably, the drive motor is fixedly connected to a transmission shaft via a first coupling.

[0016] More preferably, the upper surface of the orthogonal gearbox has four symmetrical mounting holes.

[0017] More preferably, there are two orthogonal transmission components, and a second coupling is provided between the two orthogonal transmission components.

[0018] More preferably, the two corresponding drive shafts within the two orthogonal drive components are connected by a second coupling.

[0019] The present invention has the following advantages due to the adoption of the above technical solution:

[0020] This invention achieves synchronous output from multiple power sources by driving the transmission shaft of an orthogonal transmission assembly to rotate synchronously using a single drive motor. Its technical advantages include: the transmission shafts of each orthogonal transmission assembly apply elastic clamping force to the two rolling bearings along the axial direction via elastic washers between them, thereby eliminating axial and radial clearances in the rolling elements; simultaneously, the internal backlash-eliminating gear structure eliminates gear tooth backlash, achieving backlash-free precision rotation. This ensures good synchronization, low noise, and smoothness of each rotating mechanism. Its structure is simple, and it improves upon cost, efficiency, and backlash-free synchronous rotation.

[0021] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an overall structural diagram of the present invention;

[0024] Figure 2 This is a structural diagram of the orthogonal transmission component of this utility model;

[0025] Figure 3 This is a top view of the present invention;

[0026] Figure 4 This utility model Figure 3 A cross-sectional view along the AA direction.

[0027] Reference numerals: 101, Orthogonal transmission assembly; 11, Orthogonal gearbox; 12, Drive shaft; 13, Mounting cavity; 14, Shaft retaining ring; 15, Hole retaining ring; 16, Backlash-free gear; 17, Locking screw; 18, Elastic washer; 19, Rolling bearing; 31, Drive motor; 32, Motor base; 33, First coupling; 34, Second coupling; 35, Mounting hole. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] like Figures 1-4As shown, this utility model embodiment provides a multi-stage parallel backlash-free rotating structure, including an orthogonal transmission assembly 101. The orthogonal transmission assembly 101 includes an orthogonal gearbox 11, five transmission shafts 12, two shaft elastic retaining rings 14, two hole elastic retaining rings 15, five backlash-free gears 16, locking screws 17, elastic washers 18, and two rolling bearings 19.

[0031] The orthogonal gearbox 11 has an internal mounting cavity 13, and five drive shafts 12 are located inside the mounting cavity 13. Two shafts are mounted on the outer side wall of the drive shaft 12 with elastic retaining rings 14, and two holes are fitted onto the outside of the drive shaft 12 with elastic retaining rings 15 and mounted on the inner wall of the mounting cavity 13. The drive shaft 12 is mounted inside the mounting cavity 13 through two rolling bearings 19. An elastic washer 18 is fitted onto the outer wall of the drive shaft 12 and located between the two rolling bearings 19, and the elastic washer 18 fits against the two rolling bearings 19. Thus, through the shaft elastic retaining rings 14, hole elastic retaining rings 15, elastic washer 18 and two rolling bearings 19, the drive shaft 12 can be mounted inside the orthogonal gearbox 11, and the drive shaft 12 can rotate inside the orthogonal gearbox 11.

[0032] The backlash-eliminating gear 16 is fixedly connected to the outer wall of the drive shaft 12 by locking screws 17. The five backlash-eliminating gears 16 are meshed with each other in sequence. All five backlash-eliminating gears 16 are located inside the mounting cavity 13. The backlash-eliminating gears 16 are coaxially arranged with the drive shaft 12. During operation, when one drive shaft 12 rotates, it drives one backlash-eliminating gear 16 to rotate. Since the backlash-eliminating gears 16 are meshed with each other, the five backlash-eliminating gears 16 drive the drive shaft 12 to rotate synchronously. The drive shaft 12 drives the external equipment synchronously.

[0033] In one embodiment, the end of the drive shaft 12 away from the backlash-free gear 16 is located outside the orthogonal gearbox 11, and this end is used to connect to external devices.

[0034] In one embodiment, a drive mechanism is provided on the outside of the orthogonal transmission assembly 101;

[0035] The drive mechanism includes a drive motor 31, a motor base 32, and a first coupling 33;

[0036] The drive motor 31 is mounted on the motor base 32, and the first coupling 33 is mounted on the output shaft of the drive motor 31. The drive motor 31 is fixedly connected to a transmission shaft 12 through the first coupling 33. The position of the drive motor 31 can be limited by the motor base 32. When the drive motor 31 is working, it drives the transmission shaft 12 to rotate through the first coupling 33. Under the drive of the backlash-free gear 16, the transmission shaft 12 can make the other four transmission shafts 12 rotate synchronously.

[0037] In one embodiment, four mounting holes 35 are symmetrically provided on the upper surface of the orthogonal gearbox 11, which facilitate the installation and fixing of the orthogonal gearbox 11.

[0038] In one embodiment, two orthogonal transmission components 101 are provided, and a second coupling 34 is provided between the two orthogonal transmission components 101. The two corresponding transmission shafts 12 in the two orthogonal transmission components 101 are connected by the second coupling 34. The two orthogonal transmission components 101 can be connected by the second coupling 34 to obtain more power sources. In actual use, the number of orthogonal transmission components 101 can be increased by connecting shafts.

[0039] When this utility model is in operation: the drive motor 31 drives a transmission shaft 12 to rotate through the first coupling 33, and the transmission shaft 12 drives a backlash-free gear 16 to rotate. Since the backlash-free gears 16 are meshed together, the five backlash-free gears 16 drive the transmission shaft 12 to rotate synchronously. The transmission shafts 12 drive the external equipment synchronously. Here, one transmission shaft 12 in the orthogonal gearbox 11 drives the transmission shaft 12 in another orthogonal gearbox 11 to rotate through the second coupling 34 connected to it. During the transmission process, the transmission shafts 12 all rotate synchronously to drive the external equipment.

[0040] Compared with the prior art, this utility model achieves synchronous output of multiple power sources by driving the transmission shaft 12 of the orthogonal transmission assembly 101 to rotate synchronously through a drive motor 31. Its technical advantage is that the transmission shaft 12 of each orthogonal transmission assembly 101 applies elastic clamping force to the two rolling bearings 19 along the axial direction through the elastic washer 18 between the two rolling bearings 19, thereby eliminating the axial and radial clearance of the rolling elements in the rolling bearings 19; at the same time, the backlash-free gear 16 structure inside eliminates the gear tooth backlash, realizing backlash-free precision rotation, which can ensure good synchronization, low noise and smoothness of each rotating mechanism. Its structure is simple and improves in terms of cost, efficiency and backlash-free synchronous rotation.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A multi-stage parallel gapless rotary structure comprising an orthogonal transmission assembly (101), characterized in that: The orthogonal transmission assembly (101) includes an orthogonal gearbox (11), five transmission shafts (12), two shaft retaining rings (14), two hole retaining rings (15), five backlash-free gears (16), locking screws (17), elastic washers (18), and two rolling bearings (19). The orthogonal gearbox (11) has an internal mounting cavity (13). All five drive shafts (12) are located inside the mounting cavity (13). Two shafts are mounted on the outer side wall of the drive shaft (12) with elastic retaining rings (14). Two holes are fitted onto the outside of the drive shaft (12) with elastic retaining rings (15) and installed on the inner wall of the mounting cavity (13). The drive shaft (12) is mounted inside the mounting cavity (13) through two rolling bearings (19). The elastic washer (18) is fitted onto the outer wall of the drive shaft (12) and located between the two rolling bearings (19). The backlash-free gear (16) is fixedly connected to the outer side wall of the drive shaft (12) by locking screws (17). The five backlash-free gears (16) are sequentially meshed and connected.

2. A multi-stage parallel gapless rotary structure according to claim 1, characterized in that: All five backlash-free gears (16) are located inside the mounting cavity (13).

3. A multi-stage parallel gapless rotary structure according to claim 2, characterized in that: The end of the drive shaft (12) away from the backlash-free gear (16) is located outside the orthogonal gearbox (11).

4. A multi-stage parallel gapless rotary structure as claimed in claim 1, wherein: The orthogonal transmission assembly (101) is externally provided with a drive mechanism; The drive mechanism includes a drive motor (31), a motor base (32), and a first coupling (33). The drive motor (31) is mounted on the motor mount (32), and the first coupling (33) is mounted on the output shaft of the drive motor (31).

5. A multi-stage parallel gapless rotary structure according to claim 4, characterized in that: The drive motor (31) is fixedly connected to a transmission shaft (12) via a first coupling (33).

6. A multi-stage parallel gapless rotary structure as claimed in claim 1, wherein: The upper surface of the orthogonal gearbox (11) is symmetrically provided with four mounting holes (35).

7. A multi-stage parallel gapless rotary structure as claimed in claim 1, wherein: There are two orthogonal transmission components (101), and a second coupling (34) is provided between the two orthogonal transmission components (101).

8. A multi-stage parallel gapless rotary structure according to claim 7, characterized in that: The two corresponding drive shafts (12) in the two orthogonal drive assemblies (101) are connected by a second coupling (34).

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