Lifting mechanism for high-speed shaft expansion sleeve tightening equipment

Abstract

The lifting mechanism for the high-speed shaft expansion sleeve tightening device comprises a lifting installation frame, a driving mechanism, a tightening sleeve head, a shaft expansion sleeve component and a bolt head, the output end of the driving mechanism is located in the middle of the interior of the lifting installation frame and is in transmission connection with a transmission toothed bar, and the bottom end of the transmission toothed bar is connected with a telescopic connecting assembly. The telescopic connecting assembly is composed of a connecting column sleeve, a first cross-shaped telescopic column and a second cross-shaped telescopic column, two sets of driven toothed rods are symmetrically and rotationally installed on the left side and the right side of the interior of the lifting mounting frame, and the outer sides of a transmission toothed rod and the two sets of driven toothed rods are sleeved with a transmission toothed belt in a transmission meshing mode; the utility model has the beneficial effects that the machining efficiency and the use convenience are improved through an integrated lifting transmission and rotating tightening structure, and meanwhile, the vibration damage caused by impact force is also reduced through an elastic buffering and vibration damping stabilizing structure, so that the overall durability is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of expansion sleeve installation equipment, specifically a lifting mechanism for a high-speed shaft expansion sleeve tightening device. Background Technology

[0002] Expansion sleeves belong to the category of general mechanical components. They are mechanical parts used to connect two shafts (driving shaft and driven shaft) in different mechanisms to make them rotate together to transmit torque. Expansion sleeves are widely used in various occasions that require the transmission of torque, especially in heavy load and alternating torque applications. Typical applications include flywheels, belt drums, etc.

[0003] Currently, the installation and removal of expansion sleeves generally only require manual tightening or loosening of bolts. However, with the continuous increase in demand and the development of technology, manual operation has reduced the overall efficiency of shaft expansion sleeve tightening. During the tightening process, it is necessary for people to continuously control the tightening equipment to approach the bolt, which is time-consuming and laborious due to frequent repetition. Moreover, when the tightening equipment contacts the bolt outside the expansion sleeve for connection, the unstable force control by the person can easily cause vibration and wear damage to the bolt and the outer surface of the expansion sleeve, reducing durability.

[0004] To address this issue, we propose a lifting mechanism for a high-speed shaft expansion sleeve tightening device. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] A lifting mechanism for a high-speed shaft expansion sleeve tightening device includes a lifting mounting frame, a drive mechanism, a tightening sleeve head, a shaft expansion sleeve component, and a bolt head. The output end of the drive mechanism is located in the middle of the interior of the lifting mounting frame and is connected to a transmission rack. The bottom end of the transmission rack is connected to a telescopic connecting assembly, which consists of a connecting sleeve, a first cross telescopic column, and a second cross telescopic column. Two sets of driven racks are symmetrically and rotatably mounted on the left and right sides of the interior of the lifting mounting frame. The outer sides of the transmission rack and the two sets of driven racks are connected to a transmission belt. The bottom ends of the two sets of driven racks are connected to threaded rotating rods at the bottom of the lifting mounting frame. The outer sides of the threaded rotating rods are threadedly connected to a lifting sleeve plate. The bottom end of the telescopic connecting assembly is provided with a connecting rotating plate. The outer middle of the connecting rotating plate is connected to an annular extension plate. The outer side of the annular extension plate is rotatably and annularly connected to a movable mounting plate connected to one end of the lifting sleeve plate.

[0008] In a preferred embodiment, this utility model can be further configured as follows:

[0009] By adopting the above technical solution, the tightening sleeve is installed at the bottom center of the connecting rotating plate, the bottom end of the second cross telescopic column is connected to the top center of the connecting rotating plate, and the top of the telescopic connecting assembly and the bottom of the two sets of driven toothed rods rotate through the bottom end face of the lifting mounting frame.

[0010] In a preferred embodiment, this utility model can be further configured as follows:

[0011] By adopting the above technical solution, the top end of the first cross telescopic column is slidably engaged with the inner side of the connecting column sleeve, and the top end of the second cross telescopic column is slidably engaged with the inner side of the first cross telescopic column.

[0012] In a preferred embodiment, this utility model can be further configured as follows:

[0013] By adopting the above technical solution, the drive mechanism is installed at the top center of the lifting mounting frame, the bolt heads are evenly distributed at the top of the shaft expansion sleeve component, and the tightening sleeve head is located on the top surface of the bolt head.

[0014] In a preferred embodiment, this utility model can be further configured as follows:

[0015] By adopting the above technical solution, the bottom end of the shaft expansion sleeve component is provided with a support operating platform, and the top two sides of the support operating platform are symmetrically equipped with support columns that are rotatably sleeved with the bottom extension end of the threaded rotating rod.

[0016] In a preferred embodiment, this utility model can be further configured as follows:

[0017] By adopting the above technical solution, a spring is sleeved on the bottom side of the threaded rotating rod at the top of the support column, and a movable pressure plate sleeved on the outside of the threaded rotating rod is connected to the top of the spring.

[0018] In a preferred embodiment, this utility model can be further configured as follows:

[0019] By adopting the above technical solution, two sets of limiting slide rods are symmetrically installed between the bottom two sides of the lifting mounting frame and the top two sides of the supporting operating platform, and the other end of the lifting sleeve plate is slidably sleeved on the outside of the limiting slide rods.

[0020] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0021] 1. In this utility model, the operation of the integrated lifting components causes the two sets of threaded rotating rods to rotate, and the movable mounting plate carries the telescopic connecting assembly and brings the tightening sleeve closer to the bolt head at the top of the shaft expansion sleeve component. At the same time, through the telescopic transmission of each component of the telescopic connecting assembly, the connecting plate rotates, causing the tightening sleeve to rotate and tighten the bolt head. This not only improves the convenience of operation, but also improves the processing efficiency, saves time and effort, and improves the effect of use.

[0022] 2. In this utility model, through the rotation of the two sets of threaded rotating rods as described above, the lifting sleeve plate moves downward and approaches the movable pressure plate, squeezing the spring. The elastic reaction force of the spring reduces the vibration and impact force when the tightening sleeve head and the bolt head approach each other, reducing wear and damage and improving overall durability. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of an embodiment of the present invention;

[0024] Figure 2 This is a front cross-sectional view of one embodiment of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the telescopic connection component according to an embodiment of the present invention.

[0026] Figure label:

[0027] 1. Lifting mounting frame; 2. Drive mechanism; 3. Supporting operating platform; 4. Threaded rotating rod; 5. Tightening sleeve; 6. Shaft expansion sleeve assembly; 7. Movable mounting plate; 8. Connecting rotating plate; 9. Telescopic connecting assembly; 901. Connecting column sleeve; 902. First cross telescopic column; 903. Second cross telescopic column; 10. Lifting sleeve plate; 11. Support column rod; 12. Spring; 13. Transmission rack; 14. Driven rack; 15. Transmission belt; 16. Bolt head; 17. Annular extension clamping plate; 18. Movable pressure plate; 19. Limiting slide rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0029] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0030] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a lifting mechanism for a high-speed shaft expansion sleeve tightening device.

[0031] Example 1:

[0032] Combination Figures 1-3 As shown, this utility model provides a lifting mechanism for a high-speed shaft expansion sleeve tightening device.

[0033] Specifically, the components include a lifting mounting frame 1, a drive mechanism 2, a tightening sleeve 5, a shaft expansion sleeve component 6, and a bolt head 16. The output end of the drive mechanism 2 is located in the middle of the interior of the lifting mounting frame 1 and is connected to a transmission rack 13. The transmission rack 13 is mainly used to facilitate the simultaneous rotation of two sets of driven racks 14 through the meshing of the transmission belt 15. This causes the two sets of threaded rotating rods 4 to rotate simultaneously, enabling the various structures to move up and down. The bottom end of the transmission rack 13 is connected to a telescopic connection assembly 9, which is composed of connecting column sleeves 90. 1. The system comprises a first cross-shaped telescopic column 902 and a second cross-shaped telescopic column 903. The cross-shaped design of the first cross-shaped telescopic column 902 and the second cross-shaped telescopic column 903 facilitates telescopic movement and also allows the transmission rack 13 to drive the telescopic connecting assembly 9 to rotate as a whole without affecting the rotation of the connecting rotating plate 8. Two sets of driven racks 14 are symmetrically and rotatably mounted on the left and right sides inside the lifting mounting frame 1. A transmission toothed belt 15 is engaged with the outer sides of the transmission rack 13 and the two sets of driven racks 14. The bottom ends of the two sets of driven racks 14 are located at the lifting... The bottom of the lowering mounting bracket 1 is connected to a threaded rotating rod 4. A lifting sleeve 10 is threadedly sleeved on the outer side of the threaded rotating rod 4. A connecting rotating plate 8 is provided at the bottom of the telescopic connecting assembly 9. An annular extension clamping plate 17 extends from the middle of the outer side of the connecting rotating plate 8. The annular extension clamping plate 17 mainly facilitates the rotational engagement of the connecting rotating plate 8 and the movable mounting plate 7. The outer side of the annular extension clamping plate 17 is rotatably sleeved with a movable mounting plate 7 connected to one end of the lifting sleeve 10. A tightening sleeve 5 is installed at the middle of the bottom of the connecting rotating plate 8. The second cross-shaped telescopic column... The bottom end of 903 is connected to the top center of the connecting rotating plate 8. The top of the telescopic connecting assembly 9 and the bottom of the two sets of driven toothed rods 14 rotate through the bottom end face of the lifting mounting frame 1. The top end of the first cross telescopic column 902 is slidably engaged with the inner side of the connecting column sleeve 901. The top end of the second cross telescopic column 903 is slidably engaged with the inner side of the first cross telescopic column 902. The drive mechanism 2 is installed at the top center of the lifting mounting frame 1. The bolt heads 16 are evenly distributed at the top of the shaft expansion sleeve component 6. The tightening sleeve 5 is located on the top surface of the bolt head 16.

[0034] Example 2:

[0035] Combination Figure 1 and Figure 2 As shown, based on Example 1,

[0036] Specifically, the bottom end of the shaft expansion sleeve component 6 is provided with a support operating platform 3. The support operating platform 3 is mainly for facilitating the placement and stability of the shaft expansion sleeve component 6, and for facilitating manual adjustment of the position of the shaft expansion sleeve component 6, and for facilitating the tightening of the corresponding sleeve of the tightening head 5. The top two sides of the support operating platform 3 are symmetrically equipped with support columns 11 that are rotatably sleeved with the bottom extension end of the threaded rotating rod 4. The support columns 11 are mainly for facilitating the rotation and installation of the threaded rotating rod 4, and also for facilitating the support of the bottom of the spring 12. The bottom of the threaded rotating rod 4 is sleeved with the spring 12 on the top side of the support column 11. The spring 12 also provides elastic reaction support force through the compression of the movable pressure plate 18, so that the impact force of the tightening sleeve 5 connected to the bottom of the connecting rotating plate 8 on the inner side of the lifting sleeve plate 10 is reduced when it approaches the bolt head 16. The top of the spring 12 is connected to the movable pressure plate 18 sleeved on the outer side of the threaded rotating rod 4.

[0037] Combination Figure 1 and Figure 2 As shown, in the above embodiments,

[0038] Specifically, two sets of limiting slide rods 19 are symmetrically installed between the bottom two sides of the lifting mounting frame 1 and the top two sides of the supporting operating platform 3. The limiting slide rods 19 mainly stabilize and limit the movement of the lifting sleeve 10. The other end of the lifting sleeve 10 is slidably sleeved on the outside of the limiting slide rods 19.

[0039] The working principle and usage process of this utility model are as follows: First, the shaft expansion sleeve component 6 is fixed on the top of the support operating table 3, and the bolt heads 16 are placed in sequence. Through the operation of the external control mechanism, the drive mechanism 2 is operated to drive the transmission rack 13 to rotate, and the transmission belt 15 is engaged to drive the two sets of driven racks 14 to rotate, so that the two sets of threaded rotating rods 4 rotate simultaneously, so that the lifting sleeve plate 10 is driven up and down by the threaded transmission. This moves the mounting plate 7 so that the tightening sleeve 5 at the bottom of the connecting rotating plate 8 in the middle is close to the bolt head 16. At the same time, the rotation of the transmission rack 13 also causes the telescopic connecting assembly 9 to rotate, and drives the connecting rotating plate 8 to rotate along the inner side of the movable mounting plate 7, causing the tightening sleeve 5 to rotate, thus completing the rotation and tightening of the bolt head 16. This is simple and quick. Secondly, while the two sets of threaded rotating rods 4 are rotating, the lifting sleeve 10 moves downward and squeezes the movable pressure plate 18, causing the movable pressure plate 18 to squeeze the spring 12. The elastic damping force of the spring 12 reduces the impact force of the tightening sleeve 5 on the bolt head 16 and the outer side of the shaft expansion sleeve component 6.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lifting mechanism for a high-speed shaft expansion sleeve tightening device, comprising a lifting mounting frame (1), a drive mechanism (2), a tightening sleeve head (5), a shaft expansion sleeve component (6), and a bolt head (16), characterized in that, The output end of the drive mechanism (2) is located in the middle of the interior of the lifting mounting frame (1) and is connected to a transmission rack (13). The bottom end of the transmission rack (13) is connected to a telescopic connection assembly (9). The telescopic connection assembly (9) is composed of a connecting sleeve (901), a first cross telescopic column (902), and a second cross telescopic column (903). Two sets of driven racks (14) are symmetrically and rotatably installed on the left and right sides inside the lifting mounting frame (1). The transmission rack (13) and the outer sides of the two sets of driven racks (14) are connected to the transmission rack (13). A transmission toothed belt (15) is engaged with the two sets of driven toothed rods (14). The bottom ends of the two sets of driven toothed rods (14) are connected to threaded rotating rods (4) at the bottom of the lifting mounting frame (1). The outer side of the threaded rotating rod (4) is threadedly connected to a lifting sleeve plate (10). The bottom end of the telescopic connecting assembly (9) is provided with a connecting rotating plate (8). The outer middle of the connecting rotating plate (8) is connected to an annular extension plate (17). The outer side of the annular extension plate (17) is rotatably connected to a movable mounting plate (7) connected to one end of the lifting sleeve plate (10).

2. The lifting mechanism for a high-speed shaft expansion sleeve tightening device according to claim 1, characterized in that, The tightening sleeve (5) is installed at the bottom center of the connecting rotating plate (8), the bottom end of the second cross telescopic column (903) is connected to the top center of the connecting rotating plate (8), and the top of the telescopic connecting assembly (9) and the bottom of the two sets of driven toothed rods (14) rotate through the bottom end face of the lifting mounting frame (1).

3. The lifting mechanism for a high-speed shaft expansion sleeve tightening device according to claim 1, characterized in that, The top end of the first cross telescopic column (902) is slidably engaged with the inner side of the connecting column sleeve (901), and the top end of the second cross telescopic column (903) is slidably engaged with the inner side of the first cross telescopic column (902).

4. The lifting mechanism for a high-speed shaft expansion sleeve tightening device according to claim 1, characterized in that, The drive mechanism (2) is installed at the top center of the lifting mounting frame (1), the bolt heads (16) are evenly distributed at the top of the shaft expansion sleeve component (6), and the tightening sleeve head (5) is located on the top surface of the bolt head (16).

5. The lifting mechanism for a high-speed shaft expansion sleeve tightening device according to claim 1, characterized in that, The bottom end of the shaft expansion sleeve component (6) is provided with a support operating table (3), and the top two sides of the support operating table (3) are symmetrically equipped with support columns (11) that are rotatably sleeved with the bottom extension end of the threaded rotating rod (4).

6. The lifting mechanism for a high-speed shaft expansion sleeve tightening device according to claim 1, characterized in that, The bottom of the threaded rotating rod (4) is fitted with a spring (12) on the top side of the support column rod (11), and the top of the spring (12) is connected to a movable pressure plate (18) fitted on the outside of the threaded rotating rod (4).

7. The lifting mechanism for a high-speed shaft expansion sleeve tightening device according to claim 1, characterized in that, Two sets of limiting slide rods (19) are symmetrically installed between the bottom two sides of the lifting mounting frame (1) and the top two sides of the supporting operating platform (3). The other end of the lifting sleeve (10) is slidably sleeved on the outside of the limiting slide rods (19).

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