Transmission shaft of synchronous transmission lifting table

Abstract

The utility model discloses a transmission shaft of a synchronous transmission lifting table, which relates to the technical field of transmission shafts and comprises a transmission shaft body, the surface of the transmission shaft body is rotatably connected with a limit rotating shaft, the surface of the limit rotating shaft is fixedly connected with a horizontal adjusting mechanism, and the surface of the horizontal adjusting mechanism is fixedly connected with a vertical adjusting mechanism. The horizontal adjusting mechanism comprises a moving block. According to the transmission shaft device, the transmission shaft body is installed at the set position of the lifting table through the installation plate, the two ends of the transmission shaft body and a driving assembly of the lifting table are installed, and the middle of the transmission shaft body is supported and limited through the vertical adjusting mechanism, the horizontal adjusting mechanism and the limiting rotating shaft; and the stability of the transmission shaft body in a large span is improved.

Description

Technical Field

[0001] This utility model relates to the field of transmission shaft technology, and in particular to a synchronous transmission lifting table transmission shaft. Background Technology

[0002] The synchronous drive shaft of the height-adjustable desk is the core component connecting the lifting mechanisms on both sides. It achieves synchronous movement driven by dual or single motors through rigid or flexible structures. Its core function is to ensure that the desktop is subjected to uniform force and consistent displacement on both sides during the lifting process, avoiding tilting and jamming, and ensuring stability and service life.

[0003] However, in existing technologies, the required shaft length of synchronous transmission lifting desks increases when facing ultra-long span applications, resulting in a decrease in natural frequency and susceptibility to external excitations, such as motor start-up and shutdown impacts, which can induce resonance. Resonance can cause the shaft to vibrate significantly, disrupting the synchronization of the lifting mechanisms on both sides and causing the desktop to tilt during lifting, affecting the user experience. At the same time, continuous resonance will accelerate the wear and aging of the shaft and related components, significantly shortening the equipment's lifespan, increasing maintenance frequency, and raising overall operating costs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, when the synchronous transmission lifting table drive shaft is used in ultra-long span applications, the required shaft length will also increase accordingly, resulting in a decrease in the natural frequency and susceptibility to external excitation, such as motor start-stop impact, which can induce resonance. Therefore, a synchronous transmission lifting table drive shaft is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a synchronous transmission lifting table transmission shaft, comprising a transmission shaft body, a limiting rotating shaft rotatably connected to the surface of the transmission shaft body, a horizontal adjustment mechanism fixedly connected to the surface of the limiting rotating shaft, a vertical adjustment mechanism fixedly connected to the surface of the horizontal adjustment mechanism, the horizontal adjustment mechanism comprising a moving block, the lower part of the moving block being fixedly connected to the limiting rotating shaft, and a connecting frame being provided on the upper part of the moving block, an adjusting bolt being threadedly connected to the surface of the connecting frame, and a slider being rotatably connected to the end of the connecting frame, the slider being slidably connected to the moving block.

[0006] Preferably, the surface of the movable block is provided with a limiting groove, and the slider is located inside the limiting groove and slidably connected to the movable block.

[0007] Preferably, the surface of the slider is provided with a protrusion, which is located inside the limiting groove and slidably connected to the moving block.

[0008] Preferably, the connecting frame is threaded with four adjusting bolts, which are located on the four sides of the connecting frame respectively.

[0009] Preferably, the vertical adjustment mechanism includes a connecting ball head, which is fixedly connected to the top of the connecting frame, and the connecting ball head is located at the center of the top of the connecting frame.

[0010] Preferably, a connecting shell is movably connected to the surface of the connecting ball head.

[0011] Preferably, a threaded sleeve is fixedly connected to the upper part of the connecting housing, and a threaded rod is threadedly connected inside the threaded sleeve.

[0012] Preferably, a mounting plate is fixedly connected to the top of the threaded rod.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the drive shaft body is installed at a set position on the lifting table by means of an mounting plate, and the two ends of the drive shaft body are installed with the drive components of the lifting table. The middle part of the drive shaft body is supported and limited by the vertical adjustment mechanism, the horizontal adjustment mechanism and the limit rotation shaft, thereby improving the stability of the drive shaft body when the span is large.

[0015] 2. In this utility model, the position of the slider is adjusted by rotating the adjusting bolt, thereby precisely adjusting the horizontal position of the moving block, the limiting rotating shaft and the transmission shaft body. Then, by rotating the threaded sleeve, the threaded sleeve slides along the threaded rod, thereby adjusting the vertical height of the transmission shaft body. This ensures the accurate installation position of the transmission shaft body, reduces the vibration of the transmission shaft body during rotation, and improves the stability of the transmission shaft body during operation. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a synchronous transmission lifting table drive shaft is provided for this utility model;

[0017] Figure 2 A side view of the transmission shaft of a synchronous transmission lifting table is provided for this utility model.

[0018] Figure 3 This utility model provides a three-dimensional cross-sectional structural diagram of the connecting frame in the transmission shaft of a synchronous transmission lifting table.

[0019] Figure 4 This utility model presents a three-dimensional cross-sectional structural diagram of the connecting frame in the transmission shaft of a synchronous transmission lifting table.

[0020] Legend: 1. Drive shaft body; 2. Limiting rotating shaft; 3. Horizontal adjustment mechanism; 31. Moving block; 32. Connecting frame; 33. Adjusting bolt; 34. Sliding block; 35. Limiting groove; 4. Vertical adjustment mechanism; 41. Connecting ball head; 42. Connecting housing; 43. Threaded sleeve; 44. Threaded rod; 5. Mounting plate. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-4 As shown, this utility model provides a synchronous transmission lifting table transmission shaft, including a transmission shaft body 1, a limiting rotating shaft 2 rotatably connected to the surface of the transmission shaft body 1, a horizontal adjustment mechanism 3 fixedly connected to the surface of the limiting rotating shaft 2, a vertical adjustment mechanism 4 fixedly connected to the surface of the horizontal adjustment mechanism 3, the horizontal adjustment mechanism 3 including a moving block 31, the lower part of the moving block 31 being fixedly connected to the limiting rotating shaft 2, and a connecting frame 32 being provided on the upper part of the moving block 31, an adjusting bolt 33 being threadedly connected to the surface of the connecting frame 32, and a slider 34 being rotatably connected to the end of the connecting frame 32, the slider 34 being slidably connected to the moving block 31.

[0024] The specific settings and functions of this embodiment are described below. The drive shaft body 1 is installed at the set position on the lifting table using the mounting plate 5. Both ends of the drive shaft body 1 are installed with the drive components of the lifting table. The middle part of the drive shaft body 1 is supported and limited by the vertical adjustment mechanism 4, the horizontal adjustment mechanism 3, and the limit rotating shaft 2, which improves the stability of the drive shaft body 1 when the span is large. The support and limitation of the middle part of the drive shaft body 1 by the vertical adjustment mechanism 4, the horizontal adjustment mechanism 3, and the limit rotating shaft 2 ensures that the shaft can maintain good stability even under ultra-long spans, effectively resisting external excitations such as motor start-stop impact. The added support and limitation structure increases the natural frequency of the drive shaft body 1, making it less susceptible to resonance induced by external excitations.

[0025] Example 2: Figures 1-4As shown, the surface of the movable block 31 is provided with a limiting groove 35, and the slider 34 is located inside the limiting groove 35 and is slidably connected to the movable block 31. The surface of the slider 34 is provided with a protrusion, which is located inside the limiting groove 35 and is slidably connected to the movable block 31. The surface of the connecting frame 32 is threadedly connected with four adjusting bolts 33, which are located on the four sides of the connecting frame 32 respectively. The vertical adjustment mechanism 4 includes a connecting ball head 41, which is fixedly connected to the top of the connecting frame 32 and is located at the center of the top of the connecting frame 32. The surface of the connecting ball head 41 is movably connected to a connecting housing 42, and a threaded sleeve 43 is fixedly connected to the upper part of the connecting housing 42. A threaded rod 44 is threadedly connected inside the threaded sleeve 43, and a mounting plate 5 is fixedly connected to the top of the threaded rod 44.

[0026] The overall effect of this embodiment is that, during the installation process, the position of the slider 34 is adjusted by rotating the adjusting bolt 33, thereby precisely adjusting the horizontal position of the moving block 31, the limiting rotating shaft 2, and the transmission shaft body 1. Then, by rotating the threaded sleeve 43, the threaded sleeve 43 slides along the threaded rod 44, thereby adjusting the vertical height of the transmission shaft body 1. This ensures the accurate installation position of the transmission shaft body 1, reduces the vibration of the transmission shaft body 1 during rotation, and improves the stability of the transmission shaft body 1 during operation.

[0027] The method of use and working principle of this device: The drive shaft body 1 is installed in the set position of the lifting table through the mounting plate 5. The two ends of the drive shaft body 1 are installed with the drive components of the lifting table. The middle part of the drive shaft body 1 is supported and limited by the vertical adjustment mechanism 4, the horizontal adjustment mechanism 3 and the limit rotation shaft 2, thereby improving the stability of the drive shaft body 1 when the span is large.

[0028] During installation, the position of the slider 34 is adjusted by rotating the adjusting bolt 33, thereby precisely adjusting the horizontal position of the moving block 31, the limiting rotating shaft 2, and the transmission shaft body 1. Then, by rotating the threaded sleeve 43, the threaded sleeve 43 slides along the threaded rod 44, thereby adjusting the vertical height of the transmission shaft body 1. This ensures the accurate installation position of the transmission shaft body 1, reduces the vibration of the transmission shaft body 1 during rotation, and improves the stability of the transmission shaft body 1 during operation.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A synchronous transmission lifting table drive shaft, comprising a drive shaft body (1), wherein a limit rotating shaft (2) is rotatably connected to the surface of the drive shaft body (1), characterized in that: A horizontal adjustment mechanism (3) is fixedly connected to the surface of the limiting rotation shaft (2), and a vertical adjustment mechanism (4) is fixedly connected to the surface of the horizontal adjustment mechanism (3). The horizontal adjustment mechanism (3) includes a moving block (31). The lower part of the moving block (31) is fixedly connected to the limiting rotation shaft (2), and a connecting frame (32) is provided on the upper part of the moving block (31). An adjusting bolt (33) is threadedly connected to the surface of the connecting frame (32), and a slider (34) is rotatably connected to the end of the connecting frame (32). The slider (34) is slidably connected to the moving block (31).

2. The synchronous transmission lifting table drive shaft according to claim 1, characterized in that: The surface of the movable block (31) is provided with a limiting groove (35), and the slider (34) is located inside the limiting groove (35) and is slidably connected to the movable block (31).

3. The synchronous transmission lifting table drive shaft according to claim 1, characterized in that: The surface of the slider (34) is provided with a protrusion, which is located inside the limiting groove (35) and slidably connected to the moving block (31).

4. The synchronous transmission lifting table drive shaft according to claim 1, characterized in that: The connecting frame (32) has four adjusting bolts (33) threadedly connected to its surface, and the four adjusting bolts (33) are located on the four sides of the connecting frame (32).

5. The synchronous transmission lifting table drive shaft according to claim 1, characterized in that: The vertical adjustment mechanism (4) includes a connecting ball head (41), which is fixedly connected to the top of the connecting frame (32), and the connecting ball head (41) is located at the center of the top of the connecting frame (32).

6. The synchronous transmission lifting table drive shaft according to claim 5, characterized in that: The connecting ball head (41) is movably connected to the connecting housing (42).

7. The synchronous transmission lifting table drive shaft according to claim 6, characterized in that: A threaded sleeve (43) is fixedly connected to the upper part of the connecting housing (42), and a threaded rod (44) is threadedly connected inside the threaded sleeve (43).

8. The synchronous transmission lifting table drive shaft according to claim 7, characterized in that: The top of the threaded rod (44) is fixedly connected to a mounting plate (5).

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