Electric drill cushioning structure
By designing the first and second shock absorbing devices in the electric drill, the output shaft and coupling are respectively shock-absorbing, the problem of large vibration during the electric drill is solved, and a more stable output and a better operating experience are achieved.
Patent Information
- Application Number
- CN202421567357.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-04
AI Technical Summary
Existing electric drills will cause greater vibration during operation, resulting in faster coupling shaking and wear, poor output effect of the output shaft, operators will have a greater vibration and poor operating experience.
A electric drill shock absorbing structure is designed, including providing a first shock absorbing device and a second shock absorbing device in the body, and respectively absorbing the output shaft and coupling. The first shock absorbing device includes a support base, a damping buffer member, a gasket and an elastic member, and absorbs vibration energy through the elastic deformation of the elastic member; the second shock absorbing device includes a shock absorbing disc, a guide pin, an elastic member, an extruder and a rotating member, and adjusts the deformation of the elastic member through the pitch adjustment of the extruder and the shock absorbing disc to absorb vibration energy.
The output shaft and coupling are shock-absorbed through the shock absorber, which significantly reduces vibration transmission, extends the service life of the coupling, improves the operating experience, and the shock absorption effect is reliable and stable.
Smart Images
Figure CN222806144U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric drills, and in particular relates to a shock absorbing structure of an electric drill. Background Art
[0002] The electric drill is a commonly used electric tool. Generally, the existing electric drills usually include a body, a motor and an output shaft are arranged in the body, a working head is connected to the output shaft, and the motor and the output shaft are connected by a coupling. In order for the motor to drive the output shaft to rotate normally, the coupling often adopts a soft connection; one end sleeve of the coupling is installed on the motor shaft, and the other end sleeve is installed on the output shaft. When the electric drill is working, it often produces a large vibration, so that the coupling will shake and tilt relative to the body, and there will be a large wear between the coupling and the output shaft, so that the output effect of the output shaft is poor and the coupling is easy to be damaged. At the same time, the working head of the electric drill often exerts a large force on the output shaft when rotating, and the vibration generated by the output shaft will be directly transmitted to the body, so that the operator will have a large sense of vibration and the operating experience is poor. Therefore, it is necessary to design an electric drill shock-absorbing structure to overcome the above difficulties. Summary of the invention
[0003] The utility model aims at the problems existing in the prior art and designs an electric drill shock absorbing structure. The utility model arranges a first shock absorbing device and a second shock absorbing device in a machine body to respectively dampen the output shaft and the coupling, so that the shock absorbing effect is good and the shock absorbing structure is stable and reliable.
[0004] The invention objective of the utility model is achieved through the following technical solutions: a shock-absorbing structure of an electric drill, comprising a machine body, a driving motor and an output shaft are arranged in the machine body, a coupling connecting the driving motor and the output shaft is arranged between the two; the output shaft is rotatably connected to the machine body, a first shock-absorbing device for buffering is arranged between the outer side of the output shaft and the inner wall of the machine body; a second shock-absorbing device is arranged between the coupling and the machine body; the second shock-absorbing device comprises a shock-absorbing disk, a guide pin, a second elastic member, an extrusion member and a rotating member; the shock-absorbing disk is arranged on the outer layer of the coupling and is slidably connected to the machine body; the extrusion member is slidably connected to the machine body, the rotating member is rotatably connected to the machine body and is threadedly connected to the extrusion member, the guide pin is arranged between the shock-absorbing disk and the second elastic member, and the second elastic member rests on the extrusion member; when the rotating member is rotated, the extrusion member pushes the guide pin to squeeze and contact the shock-absorbing disk.
[0005] Preferably, a locating bearing connecting the output shaft and the machine body is provided between the two; a first retaining spring detachably connected to the output shaft is provided on the output shaft, a first limiting protrusion is provided at the end of the output shaft away from the coupling, and the locating bearing is arranged between the first retaining spring and the first limiting protrusion; a first shock absorbing device is installed on the outer layer of the output shaft.
[0006] By providing the first limiting protrusion and the first retaining spring, the output shaft is limited axially and radially, thereby preventing the output shaft from moving relative to the machine body, and the rotation process of the output shaft is more stable and reliable.
[0007] Preferably, the first shock absorbing device comprises a supporting base, a first damping buffer, a first gasket and a first elastic member; the supporting base, the first damping buffer, the first gasket and the first elastic member are all sleeved and installed on the outer layer of the output shaft; the first damping buffer and the supporting base are arranged in close contact, and the first gasket and the first damping buffer are arranged in close contact; a second limiting protrusion is provided at the end of the output shaft close to the first retaining spring, and a first elastic member is provided between the second limiting protrusion and the first gasket; a baffle and a second retaining spring are provided at the end of the supporting base facing away from the first elastic member; the first damping buffer and the first gasket are both arranged in the supporting base.
[0008] A supporting base is provided, a first damping buffer member and a first gasket are provided in the supporting base, one end of the first elastic member is supported by the first gasket, and the other end of the first elastic member is against the second limiting protrusion; when the output shaft vibrates, the first elastic member elastically deforms, and the vibration energy will be absorbed by the first damping buffer member, so that the first shock absorbing device will damp the output shaft to prevent the operator from feeling a large vibration.
[0009] Preferably, the support base is arranged in the machine body and is coaxial with the output shaft; a plurality of third limiting protrusions for limiting are provided in the machine body, and the side walls of the support base abut against the third limiting protrusions; a limiting groove for installing a baffle and a second retaining spring is provided in the machine body, and the installing baffle and the second retaining spring are arranged side by side and adjacently in the limiting groove; the baffle and the bottom end surface of the support base are fitted together, and the edge of the second retaining spring and the baffle are fitted together.
[0010] The side wall of the support base is limited by setting a third limiting protrusion, and the bottom of the support base is limited by setting a second retaining spring and a baffle plate. In this way, the support base is limited axially to prevent the support base from moving axially relative to the body. Only then can the first elastic member stably deform elastically, and the vibration energy of the first elastic member will be absorbed by the first damping buffer member.
[0011] Preferably, the output shaft is provided with a first slot for installing a first retaining ring, and the end of the output shaft close to the first slot is provided with a second limiting protrusion; the second limiting protrusion is an annular protrusion, the third limiting protrusion is a columnar protrusion, and the outer wall of the second limiting protrusion and the inner wall of the second limiting protrusion are arranged in close contact with each other. By providing the first slot, it is convenient to position and install the first retaining ring; the second limiting protrusion and the third limiting protrusion are arranged in close contact with each other, so that the radial direction of the output shaft can be limited, so that the output shaft and the body have better concentricity, and avoid large shaking of the output shaft and the body.
[0012] Preferably, the second shock absorbing device also includes a limiting sleeve, a second gasket and a second damping buffer; the extrusion member is provided with a plurality of evenly distributed first inner recesses, and the body is provided with a plurality of evenly distributed first outer protrusions; the first outer protrusions are arranged in the first inner recesses, and the outer contours of the two match each other; the outer layer of the extrusion member is provided with a rotating member threadedly connected thereto, the rotating member is rotatably connected to the body, and when the rotating member rotates, the extrusion member moves axially along the first outer protrusions.
[0013] The first inner recess and the first outer protrusion cooperate to limit the extrusion member axially, so that when the rotating member rotates relative to the body, the extrusion member can move axially along the first outer protrusion. When the extrusion member moves, it will squeeze the second elastic member, and the elastic deformation of the second elastic member will change.
[0014] Preferably, the extrusion member is provided with a plurality of evenly distributed annular grooves, each of which is provided with a limiting sleeve, a second gasket and a second damping buffer member; the limiting sleeve is provided with a second gasket, a second damping buffer member, a second elastic member and a guide pin; the second damping buffer member is arranged at the bottom of the annular groove, the second gasket and the second damping buffer member are arranged adjacent to each other, and a second elastic member is provided between the guide pin and the second gasket; the end of the guide pin away from the second elastic member passes through the limiting sleeve and abuts against the shock absorbing plate.
[0015] According to the actual working environment, adjust the speed of the output shaft; in the actual working process, the vibration amplitude of the electric drill is often different, which will require adjusting the elastic deformation of the second elastic member. When the vibration amplitude is larger, adjust the extrusion member to be closer to the shock-absorbing disk, the larger the elastic deformation of the second elastic member, and the stronger the shock absorption effect. When the vibration amplitude is smaller, adjust the extrusion member to be farther away from the shock-absorbing disk, the smaller the elastic deformation of the second elastic member, and the weaker the shock absorption effect. Therefore, by adjusting the distance between the extrusion member and the shock-absorbing disk, the elastic deformation of the second elastic member is adjusted, so that different shock absorption effects can be achieved, and the versatility is better. When the second elastic member is deformed, the second elastic member squeezes the second damping buffer member through the second gasket, and the vibration energy will be gradually absorbed by the second damping buffer member, and the shock absorption effect is good.
[0016] Preferably, a conical protrusion is provided in the annular groove, and the second gasket, the second damping buffer member and the second elastic member are all mounted on the outer layer of the conical protrusion, one end of the second elastic member abuts on the second gasket, and the other end abuts on the guide pin; one end of the limiting sleeve is arranged in the annular groove, and the other end extends axially toward the body; a mounting hole for inserting the limiting sleeve is provided in the body; the mounting hole, the limiting sleeve and the annular groove are all coaxially arranged; the limiting sleeve, the annular groove and the body are tightly fitted.
[0017] By setting an annular groove and a mounting hole, it is convenient to limit the limiting sleeve axially and radially; by setting a conical protrusion, it is convenient to limit the second gasket, the second damping buffer and the second elastic member; because the guide pin is set in the limiting sleeve, the coupling drives the shock-absorbing disc to move axially relative to the body when vibrating; when the shock-absorbing disc moves, it drives the guide pin to move relative to the limiting sleeve, and when the guide pin moves, it will squeeze the second elastic member, and the second elastic member will be deformed, so that the vibration energy will be absorbed by the second damping buffer. Here, by limiting the limiting sleeve and the guide pin, it is ensured that the guide pin can stably squeeze the second elastic member, so that the vibration energy of the second elastic member can be reliably absorbed by the second damping buffer, so that the shock absorption effect is better and the shock absorption is reliable.
[0018] Preferably, the shock absorbing plate is slidably connected to the body; a plurality of evenly distributed limit slots are provided on the edge of the shock absorbing plate, and a positioning protrusion cooperating with the limit slots is provided on the body, and the positioning protrusion is arranged in the limit slot; the shock absorbing plate is sleeved and installed on the outer layer of the coupling, and a fourth limit protrusion for limiting is provided on the coupling, and the fourth limit protrusion is an annular protrusion, and the shock absorbing plate rests on the fourth limit protrusion.
[0019] The limiting slot and the positioning protrusion cooperate with each other, so that the damping disc can move axially relative to the machine body, and the damping disc can be prevented from shaking relative to the machine body. By setting the fourth limiting protrusion, the coupling can press and contact the damping disc when vibrating, so that the damping disc can press the guide pin.
[0020] Preferably, the open end of the machine body is provided with a positioning plate fixedly connected thereto, the machine body is provided with a first step, and the rotating member is arranged between the positioning plate and the first step; the output shaft is provided with a working head threadedly connected thereto.
[0021] By setting the first step and the positioning plate, the rotating part can be axially limited, and the rotating part can only rotate relative to the machine body. When the rotating part rotates relative to the machine body, it can drive the extrusion part to move axially relative to the machine body. A working head is set on the output shaft, which is convenient for disassembly and assembly of the working head, replacement and maintenance.
[0022] Compared with the prior art, the utility model has the following beneficial effects: the utility model uses the first shock absorbing device to dampen the output shaft, and the damping effect is good and reliable; the first shock absorbing device further limits the output shaft, so that the output shaft is more stable and reliable when rotating. The coupling is damped by the second shock absorbing device to avoid large wear of the coupling relative to the output shaft. The second shock absorbing device includes a rotating member, an extrusion member, a second elastic member and a shock absorbing disk. The rotating member drives the extrusion member to move axially relative to the machine body, so that the distance between the extrusion member and the shock absorbing disk can be adjusted arbitrarily, and the elastic deformation of the second elastic member can be adjusted. Then, the effect of the second elastic member squeezing the second damping buffer member is different, and the damping effect of the second shock absorbing device can be adjusted according to the actual working conditions, and has better versatility. Through the cooperation between the first shock absorbing device and the second shock absorbing device, the machine body has a better damping effect, and the damping is reliable and stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional diagram of the utility model;
[0024] Figure 2 It is the internal structure diagram of the utility model;
[0025] Figure 3 for Figure 2 A partial enlarged view of position A in the middle;
[0026] Figure 4 is an internal structural diagram of the second shock absorbing device;
[0027] Figure 5 for Figure 4 A partial enlarged view of position B in the middle
[0028] Figure 6 is an exploded view of the second shock absorbing device;
[0029] Figure 7 is an exploded view of the first shock absorbing device;
[0030] Figure 8 It is an exploded view of the utility model;
[0031] Fig. 9 This is a diagram of the internal structure of the body;
[0032] Markings in the figure: 1, machine body; 2, driving motor; 3, output shaft; 31, first limiting protrusion; 32, second limiting protrusion; 33, first slot; 4, coupling; 5, first shock absorbing device; 51, supporting base; 52, first damping buffer; 53, first gasket; 54, first elastic member; 55, baffle plate; 56, second retaining spring; 6, second shock absorbing device; 61, shock absorbing plate; 62, guide pin; 63, second elastic member; 64, extrusion member; 65. Rotating member; 66. Limiting sleeve; 67. Second gasket; 68. Second damping buffer member; 69. Annular groove; 610. Conical protrusion; 7. Positioning bearing; 8. First retaining spring; 9. Third limiting protrusion; 10. Limiting groove; 11. First inner recess; 12. First outer protrusion; 13. Mounting hole; 14. Limiting slot; 15. Positioning protrusion; 16. Fourth limiting protrusion; 17. Positioning plate; 18. First step; 19. Working head. DETAILED DESCRIPTION
[0033] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:
[0034] like Figures 1 to 9 As shown, this embodiment discloses an electric drill shock-absorbing structure, including a body 1, in which a driving motor 2 and an output shaft 3 are arranged, and a coupling 4 connecting the driving motor 2 and the output shaft 3 is arranged between the two; the output shaft 3 is rotatably connected to the body 1, and a first shock-absorbing device 5 for buffering is arranged between the outer side of the output shaft 3 and the inner wall of the body 1; a second shock-absorbing device 6 is arranged between the coupling 4 and the body 1; the second shock-absorbing device 6 includes a shock-absorbing plate 61, a guide pin 62, a second elastic member 63, an extrusion member 64 and a rotating member 65; the shock-absorbing plate 61 is arranged on the outer layer of the coupling 4 and is slidably connected to the body 1; the extrusion member 64 is slidably connected to the body 1, the rotating member 65 is rotatably connected to the body 1 and is threadedly connected to the extrusion member 64, the guide pin 62 is arranged between the shock-absorbing plate 61 and the second elastic member 63, and the second elastic member 63 abuts against the extrusion member 64; when the rotating member 65 is rotated, the extrusion member 64 pushes the guide pin 62 to press and contact the shock-absorbing plate 61.
[0035] A locating bearing 7 is provided between the output shaft 3 and the body 1 to connect the two; a first retaining spring 8 that is detachably connected is provided on the output shaft 3, a first limiting protrusion 31 is provided at the end of the output shaft 3 away from the coupling 4, and the locating bearing 7 is arranged between the first retaining spring 8 and the first limiting protrusion 31; a first shock absorbing device 5 is installed on the outer layer of the output shaft 3. The first shock absorbing device 5 includes a supporting base 51, a first damping buffer 52, a first gasket 53 and a first elastic member 54; the supporting base 51, the first damping buffer 52, the first gasket 53 and the first elastic member 54 are all sleeved and installed on the outer layer of the output shaft 3; the first damping buffer 52 and the supporting base 51 are arranged in close contact, and the first gasket 53 and the first damping buffer 52 are arranged in close contact; the end of the output shaft 3 close to the first retaining spring 8 is provided with a second limiting protrusion 32, and a first elastic member 54 is provided between the second limiting protrusion 32 and the first gasket 53; the end of the supporting base 51 facing away from the first elastic member 54 is provided with a baffle 55 and a second retaining spring 56; the first damping buffer 52 and the first gasket 53 are both arranged in the supporting base 51. The support base 51 is arranged in the body 1 and is coaxial with the output shaft 3; a plurality of third limiting protrusions 9 for limiting are arranged in the body 1, and the side wall of the support base 51 abuts against the third limiting protrusions 9; a limiting groove 10 for installing a baffle 55 and a second retaining spring 56 is arranged in the body 1, and the baffle 55 and the second retaining spring 56 are arranged side by side and adjacently in the limiting groove 10; the baffle 55 and the bottom end surface of the support base 51 are arranged in abutment, and the second retaining spring 56 and the edge of the baffle 55 are arranged in abutment. A first retaining groove 33 for installing a first retaining spring 8 is arranged on the output shaft 3, and a second limiting protrusion 32 is arranged at the end of the output shaft 3 close to the first retaining groove 33; the second limiting protrusion 32 is an annular protrusion, and the third limiting protrusion 9 is a columnar protrusion, and the outer wall of the second limiting protrusion 32 and the inner wall of the second limiting protrusion 32 are arranged in abutment with each other.
[0036] The second shock absorbing device 6 also includes a limiting sleeve 66, a second gasket 67 and a second damping buffer 68; the extrusion member 64 is provided with a plurality of evenly distributed first inner recesses 11, and the body 1 is provided with a plurality of evenly distributed first outer protrusions 12; the first outer protrusions 12 are arranged in the first inner recesses 11, and the outer contours of the two match each other; the outer layer of the extrusion member 64 is provided with a rotating member 65 threadedly connected thereto, the rotating member 65 is rotatably connected to the body 1, and when the rotating member 65 rotates, the extrusion member 64 moves axially along the first outer protrusion 12. The extrusion member 64 is provided with a plurality of evenly distributed annular grooves 69, each of which is provided with a limiting sleeve 66, a second gasket 67 and a second damping buffer member 68; the limiting sleeve 66 is provided with a second gasket 67, a second damping buffer member 68, a second elastic member 63 and a guide pin 62; the second damping buffer member 68 is arranged at the bottom of the annular groove 69, the second gasket 67 and the second damping buffer member 68 are arranged adjacent to each other, and a second elastic member 63 is provided between the guide pin 62 and the second gasket 67; the end of the guide pin 62 away from the second elastic member 63 passes through the limiting sleeve 66 and abuts against the shock absorbing plate 61. A conical protrusion 610 is provided in the annular groove 69, and the second gasket 67, the second damping buffer member 68 and the second elastic member 63 are all sleeved and installed on the outer layer of the conical protrusion 610, one end of the second elastic member 63 abuts on the second gasket 67, and the other end abuts on the guide pin 62; one end of the limiting sleeve 66 is arranged in the annular groove 69, and the other end extends axially toward the body 1; a mounting hole 13 for inserting the limiting sleeve 66 is provided in the body 1; the mounting hole 13, the limiting sleeve 66 and the annular groove 69 are all coaxially arranged; the limiting sleeve 66 and the annular groove 69 are tightly fitted and connected with the body 1. The damping disc 61 is slidably connected to the machine body 1; the edge of the damping disc 61 is provided with a plurality of evenly distributed limit slots 14, the machine body 1 is provided with a positioning protrusion 15 that cooperates with the limit slots 14, and the positioning protrusion 15 is arranged in the limit slots 14; the damping disc 61 is sleeved and installed on the outer layer of the coupling 4, the coupling 4 is provided with a fourth limit protrusion 16 for limiting, the fourth limit protrusion 16 is an annular protrusion, and the damping disc 61 abuts against the fourth limit protrusion 16. The open end of the machine body 1 is provided with a positioning disc 17 fixedly connected thereto, the machine body 1 is provided with a first step 18, and the rotating member 65 is arranged between the positioning disc 17 and the first step 18; the output shaft 3 is provided with a working head 19 threadedly connected thereto.
[0037] The specific operation process of this embodiment is as follows: when the electric drill needs to be used, the motor 2 is turned on, and the motor 2 drives the output shaft 3 to rotate through the coupling 4; when the working head 3 on the output shaft 3 contacts the object to be rotated, the output shaft 3 will vibrate. A first damping buffer 52 and a first gasket 53 are arranged in the support base 51, and one end of the first elastic member 54 is supported by the first gasket 53, and the other end of the first elastic member 54 is against the second limiting protrusion 32; when the output shaft 3 vibrates, the first elastic member 54 is elastically deformed, and the vibration energy will be absorbed by the first damping buffer 52, so that the first shock absorbing device 5 will damp the output shaft 3 to prevent the operator from having a large vibration.
[0038] In actual working process, the vibration amplitude of the electric drill is often different, which will require adjusting the elastic deformation of the second elastic member 63. When the vibration amplitude is larger, adjust the extrusion member 64 to make it close to the shock absorbing disk 61, the larger the elastic deformation of the second elastic member 63, the stronger the shock absorption effect. When the vibration amplitude is smaller, adjust the extrusion member 64 to make it far away from the shock absorbing disk 61, the smaller the elastic deformation of the second elastic member 63, the weaker the shock absorption effect. Therefore, by adjusting the distance between the extrusion member 64 and the shock absorbing disk 61, the elastic deformation of the second elastic member 63 is adjusted, so that different shock absorption effects are achieved and the versatility is better. When the second elastic member 63 is deformed, the second elastic member 63 squeezes the second damping buffer member 68 through the second gasket 67, and the vibration energy will be gradually absorbed by the second damping buffer member 68, and the shock absorption effect is good. By setting the annular groove 69 and the mounting hole 13, it is convenient to limit the limiting sleeve 66 axially and radially; by setting the conical protrusion 610, it is convenient to limit the second gasket 67, the second damping buffer 68 and the second elastic member 63; because the guide pin 62 is set in the limiting sleeve 66, the coupling 4 drives the shock-absorbing plate 61 to move axially relative to the body 1 when it vibrates; when the shock-absorbing plate 61 moves, it drives the guide pin 62 to move relative to the limiting sleeve 66, and when the guide pin 62 moves, it will squeeze the second elastic member 63, and the second elastic member 63 will be deformed, so that the vibration energy will be absorbed by the second damping buffer 68.
[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. An electric drill shock absorbing structure, comprising a body (1), wherein a driving motor (2) and an output shaft (3) are arranged in the body (1), characterized in that: A coupling (4) is provided between the driving motor (2) and the output shaft (3) to connect the two; the output shaft (3) is rotatably connected to the machine body (1); a first shock absorbing device (5) for buffering is provided between the outer side of the output shaft (3) and the inner wall of the machine body (1); a second shock absorbing device (6) is provided between the coupling (4) and the machine body (1); the second shock absorbing device (6) comprises a shock absorbing plate (61), a guide pin (62), a second elastic member (63), an extrusion member (64) and a rotating member (65); The shock plate (61) is arranged on the outer layer of the coupling (4) and is slidably connected to the machine body (1); the extrusion member (64) is slidably connected to the machine body (1); the rotation member (65) is rotationally connected to the machine body (1) and is threadedly connected to the extrusion member (64); the guide pin (62) is arranged between the shock absorbing plate (61) and the second elastic member (63), and the second elastic member (63) abuts against the extrusion member (64); when the rotation member (65) is rotated, the extrusion member (64) pushes the guide pin (62) to press and contact the shock absorbing plate (61).
2. The electric drill shock absorbing structure according to claim 1, characterized in that: A positioning bearing (7) is provided between the output shaft (3) and the machine body (1) to connect the two; a first retaining spring (8) which is detachably connected is provided on the output shaft (3); a first limiting protrusion (31) is provided at the end of the output shaft (3) away from the coupling (4); and the positioning bearing (7) is arranged between the first retaining spring (8) and the first limiting protrusion (31); and a first shock absorbing device (5) is installed on the outer layer of the output shaft (3).
3. The electric drill shock absorbing structure according to claim 2, characterized in that: The first shock absorbing device (5) comprises a support base (51), a first damping buffer member (52), a first gasket (53) and a first elastic member (54); the support base (51), the first damping buffer member (52), the first gasket (53) and the first elastic member (54) are all sleeved and mounted on the outer layer of the output shaft (3); the first damping buffer member (52) and the support base (51) are arranged in close contact with each other, and the first gasket (53) and the first damping buffer member (52) are arranged in close contact with each other; the end of the output shaft (3) close to the first retaining spring (8) is provided with a second limiting protrusion (32), and the first elastic member (54) is provided between the second limiting protrusion (32) and the first gasket (53); the end of the support base (51) facing away from the first elastic member (54) is provided with a baffle (55) and a second retaining spring (56); the first damping buffer member (52) and the first gasket (53) are both arranged in the support base (51).
4. The electric drill shock absorbing structure according to claim 3, characterized in that: The support base (51) is arranged in the body (1) and is coaxially arranged with the output shaft (3); a plurality of third limiting protrusions (9) for limiting are arranged in the body (1), and the side wall of the support base (51) abuts against the third limiting protrusions (9); a limiting groove (10) for installing a baffle plate (55) and a second retaining spring (56) is provided in the body (1), and the baffle plate (55) and the second retaining spring (56) are arranged side by side and adjacent to each other in the limiting groove (10); the baffle plate (55) and the bottom end surface of the support base (51) are arranged in abutment with each other, and the second retaining spring (56) and the edge of the baffle plate (55) are arranged in abutment with each other.
5. The electric drill shock absorbing structure according to claim 4, characterized in that: The output shaft (3) is provided with a first retaining groove (33) for mounting a first retaining spring (8), and the end of the output shaft (3) close to the first retaining groove (33) is provided with a second limiting protrusion (32); the second limiting protrusion (32) is an annular protrusion, the third limiting protrusion (9) is a columnar protrusion, and the outer wall of the second limiting protrusion (32) and the inner wall of the second limiting protrusion (32) are arranged to fit each other.
6. The electric drill shock absorbing structure according to claim 1, characterized in that: The second shock absorbing device (6) further comprises a limiting shaft sleeve (66), a second gasket (67) and a second damping buffer (68); the extrusion member (64) is provided with a plurality of evenly distributed first inner recesses (11), and the machine body (1) is provided with a plurality of evenly distributed first outer protrusions (12); the first outer protrusions (12) are arranged in the first inner recesses (11), and the outer contours of the two are matched with each other; the outer layer of the extrusion member (64) is provided with a rotating member (65) threadedly connected thereto, the rotating member (65) is rotatably connected to the machine body (1), and when the rotating member (65) rotates, the extrusion member (64) moves axially along the first outer protrusions (12).
7. The electric drill shock absorbing structure according to claim 6, characterized in that: The extrusion member (64) is provided with a plurality of evenly distributed annular grooves (69), each of which is provided with a limiting sleeve (66), a second gasket (67) and a second damping buffer member (68); the limiting sleeve (66) is provided with a second gasket (67), a second damping buffer member (68), a second elastic member (63) and a guide pin (62); the second damping buffer member (68) is arranged at the bottom of the annular groove (69), the second gasket (67) and the second damping buffer member (68) are arranged adjacent to each other, and a second elastic member (63) is provided between the guide pin (62) and the second gasket (67); the end of the guide pin (62) away from the second elastic member (63) passes through the limiting sleeve (66) and abuts against the shock absorbing plate (61).
8. The electric drill shock absorbing structure according to claim 7, characterized in that: A conical protrusion (610) is provided in the annular groove (69); the second gasket (67), the second damping buffer member (68) and the second elastic member (63) are all sleeved and mounted on the outer layer of the conical protrusion (610); one end of the second elastic member (63) abuts against the second gasket (67), and the other end abuts against the guide pin (62); one end of the limiting shaft sleeve (66) is arranged in the annular groove (69), and the other end extends axially toward the body (1); a mounting hole (13) for inserting the limiting shaft sleeve (66) is provided in the body (1); the mounting hole (13), the limiting shaft sleeve (66) and the annular groove (69) are all coaxially arranged; the limiting shaft sleeve (66), the annular groove (69) and the body (1) are tightly fitted and connected.
9. The electric drill shock absorbing structure according to claim 7, characterized in that: The damping disc (61) and the body (1) are slidably connected; the edge of the damping disc (61) is provided with a plurality of evenly distributed limit slots (14); the body (1) is provided with a positioning protrusion (15) that cooperates with the limit slot (14); the positioning protrusion (15) is arranged in the limit slot (14); the damping disc (61) is sleeved and mounted on the outer layer of the coupling (4); the coupling (4) is provided with a fourth limit protrusion (16) for limiting, the fourth limit protrusion (16) being an annular protrusion, and the damping disc (61) abuts against the fourth limit protrusion (16).
10. The electric drill shock absorbing structure according to claim 1, characterized in that: The open end of the machine body (1) is provided with a positioning plate (17) fixedly connected thereto, the machine body (1) is provided with a first step (18), and the rotating member (65) is arranged between the positioning plate (17) and the first step (18); and the output shaft (3) is provided with a working head (19) threadedly connected thereto.