Three-stage linkage telescopic mechanism
The three-stage linkage telescopic mechanism, through the design of a servo motor-driven synchronous wheel and a linear guide rail limit assembly, solves the problems of limited extension length and inaccurate positioning of existing linkage telescopic mechanisms, achieving a larger extension range and improved stability.
Patent Information
- Application Number
- CN202520155875.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The existing telescopic linkage mechanism has limited extension length, resulting in inaccurate positioning, large storage space requirements, and susceptibility to malfunction.
The three-stage linkage telescopic mechanism is adopted. The synchronous pulley driven by the servo motor drives the moving belt. Combined with the linear guide rail and limit components, it realizes the coordinated movement of multi-stage support plates, distributes the load, and enhances the flexibility and stability of the mechanism.
It expands the extension range of the mechanism, enhances its flexibility and adaptability, improves its stability and reliability, avoids error accumulation and space occupation problems, and adapts to the operational needs under complex working conditions.
Smart Images
Figure CN223659149U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical engineering technical field especially relates to three -level linkage telescopic mechanism. BACKGROUND
[0002] Telescopic mechanism is a device that can change form and size when needed, the adjustment of form is realized through increasing or reducing the distance between components or adjusting the length of components to meet the needs of different working environment and working requirements.
[0003] Linkage telescopic mechanism is a common transmission device, which realizes the transmission and conversion of motion through connecting link and joint connection. Its main structure includes connecting rod, joint, driving device, etc. Its function is to convert the input motion characteristics into output motion characteristics and output torque, realizing the rapid and accurate positioning or movement of objects.
[0004] In the prior art, the expansion length of part of linkage telescopic mechanism is doubled, so that the expansion length is limited, and when the length is required to be longer, the length of a single part needs to be increased. Due to the increase of length, various errors are accumulated and enlarged, resulting in inaccurate positioning. The longer telescopic mechanism occupies a larger space in storage, transportation and operation, which is not convenient for operation and management, and may collide with other parts due to space limitation, causing failure. Therefore, three -level linkage telescopic mechanism is proposed to solve the above problems. UTILITY MODEL CONTENT
[0005] In order to make up for the above shortcomings, the utility model provides three -level linkage telescopic mechanism, aiming at improving the problem that the expansion length of part of linkage telescopic mechanism is limited after multiplication in the prior art, and the increase of the length of a single part will cause inaccurate positioning due to error accumulation, and the storage, transportation and operation occupy a large space and are easy to collide and cause failure.
[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0007] Three -level linkage telescopic mechanism, including two -level bottom support plate, the top of two -level bottom support plate is installed with servo motor, the driving end of servo motor is fixedly connected with synchronous wheel, the inner wall of two -level bottom support plate is installed with moving belt, the other end of synchronous wheel is fixedly connected outside moving belt, the outside of moving belt is fixedly connected with first -level synchronous belt clamping piece, the bottom of first -level synchronous belt clamping piece is fixedly connected with three -level bottom support plate, the outside of moving belt is fixedly connected with two -level synchronous belt clamping piece, the bottom of two -level synchronous belt clamping piece is fixedly connected with first -level bottom support plate, the top of two -level bottom support plate is installed with limiting assembly for limiting when telescopic movement.
[0008] As a further description of the above technical scheme:
[0009] The limiting component includes a timing belt pad, the bottom of which is fixedly connected to the top of the secondary bottom support plate. The top of the timing belt pad is in contact with the outside of the moving belt. A limit sensor is installed on the outside of the primary bottom support plate.
[0010] As a further description of the above technical solution:
[0011] The bottom of the secondary bottom support plate is equipped with a linear guide rail, and the outer side of the tertiary bottom support plate is slidably connected to the inner wall of the linear guide rail.
[0012] As a further description of the above technical solution:
[0013] The bottom of the primary bottom support plate is equipped with a second linear guide rail, and the outer side of the secondary bottom support plate is slidably connected to the inner wall of the second linear guide rail.
[0014] This utility model has the following beneficial effects:
[0015] In this invention, the movement of the movable belt causes the primary and secondary synchronous belt clamping plates to move, which is restricted by linear guide rails one and two. This causes the secondary and tertiary bottom support plates to move, thereby achieving the telescopic effect of the entire structure. This expands the telescopic range of the mechanism, enabling it to adapt to more different scales of operation and enhancing the flexibility and adaptability of the mechanism. By rationally designing the linkage sequence and proportion of each level, the load can be effectively distributed and transferred, avoiding excessive stress concentration, thereby improving the stability and reliability of the entire mechanism. This allows it to operate stably under complex working conditions and better serve various telescopic operation scenarios. Attached Figure Description
[0016] Figure 1 This is a perspective view of the three-stage linkage telescopic mechanism proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the limiting component of the three-stage linkage telescopic mechanism proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the transmission assembly of the three-stage linkage telescopic mechanism proposed in this utility model;
[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0020] Legend:
[0021] 1. Primary bottom support plate; 2. Synchronous belt pad; 3. Primary synchronous belt clamping plate; 4. Moving belt; 5. Secondary bottom support plate; 6. Tertiary bottom support plate; 7. Secondary synchronous belt clamping plate; 8. Linear guide rail one; 9. Servo motor; 10. Synchronous pulley; 11. Linear guide rail two; 12. Limit sensor. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a three-stage linkage telescopic mechanism, including a secondary bottom support plate 5. A servo motor 9 is mounted on the top of the secondary bottom support plate 5. A synchronous pulley 10 is fixedly connected to the drive end of the servo motor 9. When the servo motor 9 is started, the rotation of the drive end of the servo motor 9 drives the synchronous pulley 10 to rotate. A movable belt 4 is installed on the inner wall of the secondary bottom support plate 5. The other end of the synchronous pulley 10 is fixedly connected to the outside of the movable belt 4. The rotation of the synchronous pulley 10 drives the movable belt 4 to rotate. A primary synchronous belt clamping plate 3 (as shown in the attached figure) is fixedly connected to the outside of the movable belt 4. Figure 4 The primary synchronous belt clamping plate 3 is used to clamp the moving belt 4. The rotation of the moving belt 4 drives the primary synchronous belt clamping plate 3 to move in position.
[0024] A third-level bottom support plate 6 is fixedly connected to the bottom of the first-level synchronous belt clamping plate 3. Changes in the position of the first-level synchronous belt clamping plate 3 cause the third-level bottom support plate 6 to move. A second-level synchronous belt clamping plate 7 is fixedly connected to the outside of the moving belt 4. The second-level synchronous belt clamping plate 7 clamps the moving belt 4, and the rotation of the moving belt 4 causes the second-level synchronous belt clamping plate 7 to move. A first-level bottom support plate 1 is fixedly connected to the bottom of the second-level synchronous belt clamping plate 7. The first-level bottom support plate 1 is used to fix the linear guide rail 11. Changes in the position of the second-level synchronous belt clamping plate 7 cause the second-level bottom support plate 5 to move. A limit sensor 12 is installed on the outside of the first-level bottom support plate 1. The limit sensor 12 is the origin limit of the telescopic mechanism (as shown in the attached figure). Figure 1 ).
[0025] Reference Figures 2 to 4A limiting component is installed on the top of the secondary bottom support plate 5 to limit the telescopic movement. The limiting component includes a timing belt pad 2, the bottom of which is fixedly connected to the top of the secondary bottom support plate 5. The timing belt pad 2 limits the movement of the moving belt 4. The top of the timing belt pad 2 contacts the outside of the moving belt 4, so that the moving belt 4 does not directly contact the secondary bottom support plate 5, thereby preventing wear.
[0026] A linear guide rail 8 is mounted on the bottom of the secondary bottom support plate 5. The outer surface of the tertiary bottom support plate 6 is slidably connected to the inner wall of the linear guide rail 8, allowing the tertiary bottom support plate 6 to move along the trajectory of the linear guide rail 8. A linear guide rail 11 (as shown in the attached diagram) is mounted on the bottom of the primary bottom support plate 1. Figure 3 The secondary bottom support plate 5 is externally slidably connected to the inner wall of the linear guide rail 2 11, so that the secondary bottom support plate 5 can move along the trajectory of the linear guide rail 2 11 when it moves.
[0027] Working principle: When the servo motor 9 is started, the rotation of the drive end of the servo motor 9 drives the synchronous pulley 10 to rotate. The rotation of the synchronous pulley 10 drives the moving belt 4 to rotate. The position change of the moving belt 4 causes the first-level synchronous belt clamping plate 3 and the second-level synchronous belt clamping plate 7 to move. Restricted by the linear guide rail 1 8 and the linear guide rail 2 11, the second-level bottom support plate 5 and the third-level bottom support plate 6 move, thereby achieving the telescopic effect of the entire structure. The three-level telescopic structure expands the telescopic range of the mechanism, enabling it to adapt to more different scale operation needs, enhancing the flexibility and adaptability of the mechanism. By reasonably designing the linkage sequence and proportion of each level, the load can be effectively distributed and transferred, avoiding excessive stress concentration, thereby improving the stability and reliability of the entire mechanism, allowing it to operate stably under complex working conditions, and better serving various telescopic operation scenarios.
[0028] The synchronous belt pad 2 limits the movement of the moving belt 4, preventing the moving belt 4 from directly contacting the secondary bottom support plate 5 and thus affecting subsequent transmission; the linear guide rail 1 8 and the linear guide rail 2 11 are used to move the tertiary bottom support plate 6 and the secondary bottom support plate 5; the limit sensor 12 is used to limit the origin of the telescopic mechanism.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A three-stage linkage telescopic mechanism, including a two-stage bottom support plate (5), characterized in that: A servo motor (9) is installed on the top of the secondary bottom support plate (5). A synchronous wheel (10) is fixedly connected to the drive end of the servo motor (9). A moving belt (4) is installed on the inner wall of the secondary bottom support plate (5). The other end of the synchronous wheel (10) is fixedly connected to the outside of the moving belt (4). A primary synchronous belt clamping plate (3) is fixedly connected to the outside of the moving belt (4). A tertiary bottom support plate (6) is fixedly connected to the bottom of the primary synchronous belt clamping plate (3). A secondary synchronous belt clamping plate (7) is fixedly connected to the outside of the moving belt (4). A primary bottom support plate (1) is fixedly connected to the bottom of the secondary synchronous belt clamping plate (7). A limiting component for limiting the telescopic movement is installed on the top of the secondary bottom support plate (5).
2. The three-stage linkage telescopic mechanism according to claim 1, characterized in that: The limiting component includes a timing belt pad (2), the bottom of which is fixedly connected to the top of the secondary bottom support plate (5), the top of which is in contact with the outside of the moving belt (4), and a limiting sensor (12) is installed on the outside of the primary bottom support plate (1).
3. The three-stage linkage telescopic mechanism according to claim 2, characterized in that: The bottom of the secondary bottom support plate (5) is equipped with a linear guide rail (8), and the outer side of the tertiary bottom support plate (6) is slidably connected to the inner wall of the linear guide rail (8).
4. The three-stage linkage telescopic mechanism according to claim 1, characterized in that: The bottom of the primary bottom support plate (1) is equipped with a linear guide rail (11), and the outer side of the secondary bottom support plate (5) is slidably connected to the inner wall of the linear guide rail (11).