Slow drilling structure of disposable power tool

Abstract

The utility model relates to the technical field of slow drilling structures, and discloses a slow drilling structure of a disposable power tool, which comprises a fourth shaft, a cutter positioning hole is arranged in the fourth shaft, the outer wall of the fourth shaft is connected with a sliding sleeve in a sliding manner, a conical surface I is arranged in the sliding sleeve, a plurality of steel balls are arranged in the fourth shaft, and a conical surface II is arranged in the sliding sleeve. The outer wall of the first conical face is slidably connected with the outer wall of the steel ball, the outer wall of the fourth shaft is fixedly connected with a first shaft clamp, the inner wall of the sliding sleeve is fixedly connected with a first gasket, one side of the outer wall of the first gasket is attached to one side of the outer wall of the first shaft clamp, and a wave spring is attached to the other side of the outer wall of the first gasket. According to the utility model, the secondary reduction gearbox, the bearing supporting position, the fourth shaft, the acetabulum rear shell, the second bearing, the second shaft clamp and other structures are introduced into a gearbox degradation system, and axial and radial limiting is implemented in the secondary planet carrier, so that the axial positioning and stress protection of the fourth shaft are realized, and the use of an acetabulum file clamp in hip replacement is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of slow drilling structures, in particular to a slow drilling structure of a disposable power tool. Background Art

[0002] Disposable power tools are tools that cannot be effectively repaired or maintained after a certain life span and usually need to be replaced. In the fields of engineering and manufacturing, slow drilling structures are designed to improve the durability and service life of tools. The slow drilling structure extends the service life of the tool by slowing down the cutting speed of the tool, reducing the friction and heat generation between the tool and the workpiece. This design not only reduces tool wear and maintenance costs, but also helps to improve machining accuracy and surface quality. Therefore, tools using slow drilling structures show important advantages in applications with long-term stable operation and high requirements for machining quality.

[0003] The existing slow drilling structure has a complicated installation process, and the torque is large. If a slight force is applied to the right axis on the fourth axis, the transmission of the entire gear box will not be smooth, and the coaxiality is not good. Therefore, a slow drilling structure of a disposable power tool is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a slow drilling structure of a disposable power tool, aiming to improve the problem in the prior art that the installation process is relatively complicated and inconvenient for people to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slow drilling structure of a disposable power tool comprises a four-axis, a tool positioning hole is opened inside the four-axis, a sliding sleeve is slidably connected to the outer wall of the four-axis, a conical surface 1 is arranged inside the sliding sleeve, a plurality of steel balls are arranged inside the four-axis, the outer wall of the conical surface 1 is slidably connected to the outer wall of the steel balls, a shaft clamp 1 is fixedly connected to the outer wall of the four-axis, a gasket 1 is fixedly connected to the inner wall of the sliding sleeve, one side of the outer wall of the gasket 1 is fitted with one side of the outer wall of the shaft clamp 1, and a wave spring is fitted on the other side of the outer wall of the gasket 1, the wave spring is sleeved on the outer wall of the four-axis, the outer wall of the four-axis is fixedly connected to the anterior shell of the acetabulum, the inner wall of the anterior shell of the acetabulum is fixedly connected to the second bearing, the second bearing is sleeved on the outer wall of the four-axis, and the outer wall is fixedly connected with an external thread.

[0006] Furthermore, the outer wall of the fourth shaft is fixed with a second shaft clamp, and the second shaft clamp is in contact with the outer wall of the second bearing.

[0007] Furthermore, the externally threaded outer wall is externally threadedly connected to a posterior shell of the acetabulum, and an isolation sleeve is fixedly connected to the interior of the posterior shell of the acetabulum, and the isolation sleeve is arranged on the outside of the four-axis.

[0008] Furthermore, a bearing three is fixedly connected to the inner wall of the posterior shell of the acetabulum, and a secondary planet carrier is arranged on the inner wall of the bearing three.

[0009] Furthermore, the outer wall of the posterior shell of the acetabulum is provided with a second conical surface, and the outer wall of the posterior shell of the acetabulum is fixedly connected with an anti-slip surface.

[0010] Furthermore, a gear transmission mechanism is provided on one side of the outer wall of the secondary planetary carrier, and an inner gear ring limiting boss is provided on the outer wall of the gear transmission mechanism.

[0011] Furthermore, a bearing 1 is arranged inside the posterior shell of the acetabulum, and three shafts are arranged on the inner wall of the bearing 1.

[0012] Furthermore, a second gasket is provided on the outer wall of the three axes.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the gearbox is downgraded and a two-stage reduction gearbox is used to achieve the same reduction ratio. A bearing support is added between the four-axis and the two-stage planetary carrier. From left to right, the four-axis, the posterior acetabular housing, the second bearing, the second shaft clamp and other structures are used to achieve axial positioning. When an axial rightward force is applied to the four-axis, it will not affect the four-axis. At the same time, the axial and radial limits of the two-stage planetary carrier make the four-axis rotate more smoothly without being affected by the axial rightward force, thereby realizing the acetabular rasp clamping for hip replacement.

[0015] 2. In the utility model, the sliding sleeve is pushed to drive the wave spring to contract, thereby driving the conical surface to separate from the outer wall of the steel ball, thereby releasing the pressure of the steel ball and achieving the effect of quickly disassembling the tool. The pressure of the wave spring is released by loosening the sliding sleeve, thereby driving the conical surface to contact the steel ball, thereby achieving the effect of quickly installing the tool, solving the problem of inconvenience in installing and disassembling the tool in the prior art and improving the installation efficiency of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural diagram of the slow drilling structure of the disposable power tool proposed by the utility model;

[0017] Figure 2 A cross-sectional view of the posterior shell of the acetabulum of the slow drilling structure of the disposable power tool proposed in the utility model;

[0018] Figure 3 This is a cross-sectional view of the slow drilling structure of the disposable power tool proposed by the utility model.

[0019] Legend:

[0020] 1. Bearing 1; 2. Four-axis; 3. Tool positioning hole; 4. Conical surface 1; 5. Steel ball; 6. Shaft clamp 1; 7. Wave spring; 8. Gasket 1; 9. Anterior shell of acetabulum; 10. Bearing 2; 11. Shaft clamp 2; 12. Isolation sleeve; 13. External thread; 14. Bearing 3; 15. Secondary planetary carrier; 16. Conical surface 2; 17. Anti-slip surface; 18. Inner gear ring limiting boss; 19. Gear transmission mechanism; 20. Gasket 2; 21. Posterior shell of acetabulum; 22. Three-axis; 23. Sliding sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-3 The utility model provides an embodiment: a slow drilling structure of a disposable power tool, comprising a four-axis 2, a tool positioning hole 3 is opened inside the four-axis 2, a sliding sleeve 23 is slidably connected to the outer wall of the four-axis 2, a conical surface 4 is arranged inside the sliding sleeve 23, a plurality of steel balls 5 are arranged inside the four-axis 2, the outer wall of the conical surface 4 is slidably connected to the outer wall of the steel ball 5, the outer wall of the four-axis 2 is fixedly connected to the shaft clamp 6, the inner wall of the sliding sleeve 23 is fixedly connected to the gasket 8, the gasket 8 One side of the outer wall is fitted with one side of the outer wall of the shaft clamp 1 6, and the other side of the outer wall of the gasket 1 8 is fitted with a wave spring 7, which is sleeved on the outer wall of the fourth shaft 2, and the outer wall of the fourth shaft 2 is fixedly connected with the anterior acetabular shell 9, and the inner wall of the anterior acetabular shell 9 is fixedly connected with the second bearing 10, which is sleeved on the outer wall of the fourth shaft 2, and the outer wall of the anterior acetabular shell 9 is fixedly connected with an external thread 13; the outer wall of the fourth shaft 2 is fixed with the shaft clamp 2 11, and the shaft clamp 2 11 is fitted with the outer wall of the second bearing 10;

[0023] Specifically, the tool can be quickly positioned through the tool positioning hole 3 so that it can be quickly installed. By loosening the sleeve 23, the reaction force of the wave spring 7 allows the sleeve 23 to be reset and the conical surface 1 4 to engage the outer wall of the steel ball 5, thereby achieving the effect of quickly installing the tool and fixing it.

[0024] Reference Figure 1-3 The outer wall of the external thread 13 is threadedly connected with the acetabular posterior shell 21, and the interior of the acetabular posterior shell 21 is fixedly connected with the isolation sleeve 12, and the isolation sleeve 12 is arranged on the outside of the four-axis 2; the inner wall of the acetabular posterior shell 21 is fixedly connected with the bearing three 14, and the inner wall of the bearing three 14 is provided with a secondary planetary carrier 15; the outer wall of the acetabular posterior shell 21 is provided with a conical surface two 16, and the outer wall of the acetabular posterior shell 21 is fixedly connected with the anti-slip surface 17;

[0025] Specifically, the acetabulum rear shell 21 can be installed on the inner wall of the acetabulum front shell 9 through the external thread 13 to prevent it from falling off. The bearing three 14 can assist the rotation of the four-axis 2 so that it will not be restricted. The rotation of the four-axis 2 can drive the secondary planetary carrier 15 to rotate, and the anti-falling surface 17 can prevent it from falling off.

[0026] Reference Figure 1-3 A gear transmission mechanism 19 is arranged on one side of the outer wall of the secondary planet carrier 15, and an inner gear ring limiting boss 18 is arranged on the outer wall of the gear transmission mechanism 19; a bearing 1 is arranged inside the posterior acetabular shell 21, and a three-axis 22 is arranged on the inner wall of the bearing 1; and a gasket 20 is arranged on the outer wall of the three-axis 22;

[0027] Specifically, the secondary planet carrier 15 rotates, thereby driving the gear transmission mechanism 19 to achieve the slow drilling effect, and the inner gear ring limiting boss 18 is used to limit it, and the bearing 1 is used to further prevent the tapered surface 4 from being restricted.

[0028] Working principle: The wave spring 7 is contracted by sliding the sleeve 23, so that the conical surface 1 4 contacts the steel ball 5, so as to facilitate the removal of the tool from the tool positioning hole 3. At this time, the four-axis 2 is rotated to the right to make the four-axis 2 rotate inside the bearing 2 10, the isolation sleeve 12, and the bearing 3 14. The four-axis 2 is then rotated in conjunction with the secondary planetary carrier 15 and the gear transmission mechanism 19 to achieve the effect of axial limitation. At the same time, the four-axis 2 is axially limited and radially limited, so that the gear transmission mechanism 19 rotates more smoothly without being affected by the axial rightward force.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A slow drilling structure of a disposable power tool, comprising four axes (2), characterized in that: The four-axis (2) is provided with a tool positioning hole (3), the outer wall of the four-axis (2) is slidably connected with a sliding sleeve (23), the sliding sleeve (23) is provided with a conical surface (4), the inner wall of the four-axis (2) is provided with a plurality of steel balls (5), the outer wall of the conical surface (4) is slidably connected with the outer wall of the steel balls (5), the outer wall of the four-axis (2) is fixedly connected with a shaft clamp (6), the inner wall of the sliding sleeve (23) is fixedly connected with a gasket (8), the gasket (5) is fixedly connected with the outer wall of the four-axis (2), and the gasket (8) is fixedly connected with the inner wall of the sliding sleeve (23). One side of the outer wall of the gasket (8) is in contact with one side of the outer wall of the shaft clamp (6), and the other side of the outer wall of the gasket (8) is in contact with a wave spring (7), and the wave spring (7) is sleeved on the outer wall of the four-axis (2), and the outer wall of the four-axis (2) is fixedly connected to the anterior acetabulum shell (9), and the inner wall of the anterior acetabulum shell (9) is fixedly connected to the second bearing (10), and the second bearing (10) is sleeved on the outer wall of the four-axis (2), and the outer wall of the (9) is fixedly connected to the external thread (13).

2. The slow drilling structure of the disposable power tool according to claim 1, characterized in that: The outer wall of the fourth shaft (2) is fixed with a second shaft clamp (11), and the second shaft clamp (11) is in close contact with the outer wall of the second bearing (10).

3. The slow drilling structure of the disposable power tool according to claim 2, characterized in that: The outer wall of the external thread (13) is externally threadedly connected to a posterior acetabular shell (21), and an isolation sleeve (12) is fixedly connected inside the posterior acetabular shell (21), and the isolation sleeve (12) is arranged outside the quadrilateral (2).

4. The slow drilling structure of the disposable power tool according to claim 3, characterized in that: The inner wall of the posterior acetabulum shell (21) is fixedly connected to a bearing three (14), and the inner wall of the bearing three (14) is provided with a secondary planet carrier (15).

5. The slow drilling structure of the disposable power tool according to claim 4, characterized in that: The outer wall of the acetabulum posterior shell (21) is provided with a conical surface 2 (16), and the outer wall of the acetabulum posterior shell (21) is fixedly connected with an anti-slip surface (17).

6. The slow drilling structure of the disposable power tool according to claim 5, characterized in that: A gear transmission mechanism (19) is provided on one side of the outer wall of the secondary planet carrier (15), and an inner gear ring limiting boss (18) is provided on the outer wall of the gear transmission mechanism (19).

7. The slow drilling structure of the disposable power tool according to claim 6, characterized in that: A bearing 1 (1) is arranged inside the posterior acetabulum shell (21), and a three-axis (22) is arranged on the inner wall of the bearing 1 (1).

8. The slow drilling structure of the disposable power tool according to claim 7, characterized in that: The outer wall of the three shafts (22) is provided with a second gasket (20).

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