Transmission mechanism with buffering function

Abstract

The utility model relates to the field of transmission devices, and discloses a transmission mechanism with a buffering function, which comprises a transmission seat, the right end of the transmission seat is fixedly connected with a transmission shaft, the outer wall of the transmission shaft is provided with a transmission mechanism, the transmission mechanism comprises a reset assembly and an output assembly, the output assembly comprises a mounting flange, and the mounting flange is fixedly connected with the transmission shaft. The mounting flange slides on the outer wall of the transmission shaft, an output shaft is inserted into the right end of the mounting flange, the output shaft slides on the outer wall of the transmission shaft, the reset assembly comprises a compression spring, the right end of the compression spring is fixedly connected to the left end of the mounting flange, and the left end of the compression spring is fixedly connected with a supporting plate. According to the utility model, through the arrangement of the movable output shaft, after the output shaft is impacted, the mounting flange and the output shaft can move leftwards and extrude the compression spring to enable the compression spring to contract, and after the impact is finished, the compression spring can drive the output shaft to reset, so that the whole device can be protected, and the damage caused by the impact is reduced.

Description

Technical Field

[0001] The utility model relates to the field of transmission devices, in particular to a transmission mechanism with a buffering function. Background Art

[0002] Drill bits and drill rods are two common drilling equipment. They are generally directly connected to the drive device through a transmission device. The power transmitted through the transmission device can drive the drill bit or drill rod to rotate. Then the operator can manually move the transmission device to drive the drill bit or drill rod to move, thus realizing the drilling operation.

[0003] In the prior art, the various components of the transmission device connected to the rear end of the drill bit or drill rod are generally fixedly connected. Therefore, when the drill bit or drill rod hits a hard object during the drilling process, the hard object will generate a reaction force, and the impact will be directly transmitted to the transmission mechanism through the drill bit. When the transmission mechanism is subjected to the impact load, the strength and service life of the internal parts will be greatly reduced. Therefore, a transmission mechanism with a buffering function is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a transmission mechanism with a buffering function, which aims to improve the problem in the prior art that "the various parts of the transmission mechanism of the drill bit and the drill rod in the prior art are fixedly connected, and the strength and service life of the internal parts will be greatly reduced when subjected to impact."

[0005] In order to achieve the above-mentioned purpose, the present utility model adopts the following technical solution: a transmission mechanism with a buffering function, including a transmission seat, the right end of the transmission seat is fixedly connected to a transmission shaft, the outer wall of the transmission shaft is provided with a transmission mechanism, the transmission mechanism includes a reset assembly and an output assembly, the output assembly includes a mounting flange, the mounting flange slides on the outer wall of the transmission shaft, the right end of the mounting flange is plugged with an output shaft, and the output shaft slides on the outer wall of the transmission shaft.

[0006] As a further description of the above technical solution:

[0007] The reset assembly includes a compression spring, the right end of which is fixedly connected to the left end of the mounting flange.

[0008] As a further description of the above technical solution:

[0009] The left end of the compression spring is fixedly connected to a support plate, and the left end of the support plate is installed on the right end of the transmission seat.

[0010] As a further description of the above technical solution:

[0011] The mounting flange and the output shaft are fixedly connected by screws. The screws are inserted into the right surface of the output shaft, and the screws are threadedly connected to the mounting flange.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the transmission shaft is provided with a spline, and the mounting flange slides on the outer wall of the spline.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the transmission shaft is fixedly connected with a locking ring, and the locking ring slides on the inner wall of the output shaft, and the output shaft is arranged in a stepped shape.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the present invention, a movable output shaft is provided. When the output shaft is impacted, the mounting flange and the output shaft will move to the left and squeeze the compression spring to shrink it. When the impact ends, the compression spring can drive the output shaft to return to its original position, thereby protecting the entire device and reducing damage caused by the impact.

[0018] 2. In the present invention, by using compression springs to alleviate impact, the probability of the device being damaged by impact can be reduced. Therefore, during production, compared with the original transmission mechanism, the present device has lower material requirements, which can reduce the overall production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective schematic diagram of the three-dimensional structure of the overall device in the present invention.

[0020] Legend:

[0021] 1. Drive seat; 2. Support plate; 3. Compression spring; 4. Mounting flange; 5. Locking ring; 6. Screws; 7. Output shaft; 8. Drive shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1The utility model provides an embodiment of a transmission mechanism with a buffering function, including a transmission base 1 for connecting an output device, the left end of the transmission base 1 is directly connected to the output device, and the transmission base 1 can be driven to rotate by starting the output device. Since the output device is a prior art and this case has not made any improvements to it, this case has not made any detailed description of it. The right end of the transmission base 1 is fixedly connected to a transmission shaft 8 for driving the transmission mechanism to rotate. The outer wall of the transmission shaft 8 is provided with a transmission mechanism for transmitting power. The transmission mechanism includes a reset assembly and an output assembly. The output assembly includes a mounting flange 4 for supporting the output shaft 7. The mounting flange 4 slides on the outer wall of the transmission shaft 8. The mounting flange 4 can slide left and right on the outer wall of the transmission shaft 8. The right end of the mounting flange 4 is plugged with an output shaft 7 for connecting a drill bit or a drill rod, and the output shaft 7 slides on the outer wall of the transmission shaft 8.

[0024] Reference Figure 1 The reset assembly includes a compression spring 3 for supporting the mounting flange 4. The right end of the compression spring 3 is fixedly connected to the left end of the mounting flange 4. When the mounting flange 4 moves to the left, it pushes the compression spring 3 to contract. The left end of the compression spring 3 is fixedly connected to a support plate 2 for supporting the compression spring 3. The left end of the support plate 2 is installed on the right end of the transmission base 1. When the transmission base 1 rotates, the support plate 2 will also be driven to rotate synchronously.

[0025] Reference Figure 1 When the output shaft 7 moves to the left until its inner wall contacts the lock ring 5, the output shaft 7 will be fixed and cannot move further to the left.

[0026] Working principle: When the right end of the output shaft 7 receives an impact, the output shaft 7 will push the mounting flange 4 to the left, and the mounting flange 4 will push the compression spring 3 to the left to shrink it. At the same time, the mounting flange 4 will slide to the left on the outer wall of the transmission shaft 8. When the impact is over, the compression spring 3 will recover through its own elastic deformation ability, and at the same time push the mounting flange 4 to move to the right and reset. The mounting flange 4 will push the output shaft 7 to move to the right and reset, thus preventing the impact from directly damaging the entire device.

[0027] 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A transmission mechanism with a buffering function, comprising a transmission seat (1), characterized in that: The right end of the transmission seat (1) is fixedly connected to a transmission shaft (8), and the outer wall of the transmission shaft (8) is provided with a transmission mechanism, and the transmission mechanism includes a reset component and an output component, and the output component includes a mounting flange (4), and the mounting flange (4) slides on the outer wall of the transmission shaft (8). The right end of the mounting flange (4) is plugged with an output shaft (7), and the output shaft (7) slides on the outer wall of the transmission shaft (8).

2. The transmission mechanism with a buffering function according to claim 1, characterized in that: The reset assembly comprises a compression spring (3), the right end of the compression spring (3) being fixedly connected to the left end of the mounting flange (4).

3. The transmission mechanism with a buffering function according to claim 2, characterized in that: The left end of the compression spring (3) is fixedly connected to a support plate (2), and the left end of the support plate (2) is mounted on the right end of the transmission seat (1).

4. The transmission mechanism with a buffering function according to claim 1, characterized in that: The mounting flange (4) and the output shaft (7) are fixedly connected by screws (6), the screws (6) are inserted into the right surface of the output shaft (7), and the screws (6) and the mounting flange (4) are threadedly connected.

5. The transmission mechanism with a buffering function according to claim 1, characterized in that: The outer wall of the transmission shaft (8) is provided with a spline, and the mounting flange (4) slides on the outer wall of the spline.

6. The transmission mechanism with a buffering function according to claim 1, characterized in that: The outer wall of the transmission shaft (8) is fixedly connected with a locking ring (5), and the locking ring (5) slides on the inner wall of the output shaft (7), and the output shaft (7) is arranged in a stepped shape.

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