CN108544431B - Impact type rotating speed adjustable drilling machine - Google Patents
Impact type rotating speed adjustable drilling machine Download PDFInfo
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- CN108544431B CN108544431B CN201810307160.9A CN201810307160A CN108544431B CN 108544431 B CN108544431 B CN 108544431B CN 201810307160 A CN201810307160 A CN 201810307160A CN 108544431 B CN108544431 B CN 108544431B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
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Abstract
The invention belongs to the technical field of drilling machines, and particularly relates to an impact type drilling machine with adjustable rotating speed, which comprises a drill bit, a transmission mechanism and a driving mechanism, wherein when people use the drilling machine designed by the invention, a driving motor is controlled to enable the driving motor to work; the driving motor works to enable the spherical friction ring to rotate; at the moment, people adjust the relative positions of the first mounting shell and the second mounting shell according to the hardness of the drilled object; the rotating speed and the torque of the drill bit are matched with the object to be drilled; after the adjustment is finished, the user presses the foremost end of the drill bit to the object to be drilled, so that the smooth surface of the third gear is in contact with the spherical friction ring; at the moment, the rotation of the spherical friction ring drives the third gear to rotate through friction; rotation of the third gear causes rotation of the drill bit; drilling can be carried out; the drill machine adjusts the rotating speed and the torque transmitted to the drill bit to enable the rotating speed and the torque of the drill bit to be matched with the object to be drilled; the drill bit is prevented from being burnt out due to the fact that the drill bit rotates too fast because the drilled objects are too hard.
Description
Technical Field
The invention belongs to the technical field of drilling machines, and particularly relates to an impact type drilling machine with an adjustable rotating speed.
Background
The prior handheld drilling machine directly installs a drill bit on the drilling machine for use in the using process; the drill bit direct speed changer is connected with a motor rotating shaft, and the rotating speed of the drill bit is adjusted through the speed changer; thereby adapting to the hardness of the drilled object; but the adjustment range of the drilling machine is small; the use is inconvenient; the drill bit is often burnt out due to the fact that the drill bit rotates too fast because the drilled objects are too hard; a lot of inconvenience is brought to the user; therefore, it is necessary to design a drilling machine with a large adjusting range.
The invention designs an impact type drilling machine with adjustable rotating speed to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses an impact type drilling machine with adjustable rotating speed, which is realized by adopting the following technical scheme.
The utility model provides a strike type rotational speed adjustable rig which characterized in that: the drilling machine comprises a drill bit, a transmission mechanism and a driving mechanism, wherein the transmission mechanism is arranged on the lower side of the driving mechanism; the drill bit is arranged at the lower side of the transmission mechanism.
The driving mechanism comprises a driving motor, a first bevel gear, a second bevel gear, a first mounting shell, a spherical friction ring, a first rotating shaft, a second rotating shaft, a first support, a support plate, a fourth support and a support shaft, wherein the lower end of the first mounting shell is an opening end; two support shafts are uniformly arranged on the outer circular surface of the first mounting shell in the circumferential direction; the driving motor is arranged on the upper end surface of the inner side of the first mounting shell; the second rotating shaft is arranged on the inner side of the first mounting shell through a first support and is connected with the rotating shaft of the driving motor; the first bevel gear is arranged on the second rotating shaft; one end of the first rotating shaft is provided with a supporting plate; the other end of the first rotating shaft is provided with a fourth support; the first rotating shaft is arranged on the inner side of the first mounting shell through a support plate and a fourth support, the support plate is arranged on the lower side of the first support, and the fourth support is arranged on the inner circular surface of the first mounting shell; the second bevel gear is arranged on the first rotating shaft and meshed with the first bevel gear; the spherical friction ring is arranged on the first rotating shaft.
The transmission mechanism comprises a third gear, a drill bit fixing column, a second mounting shell, a fourth bevel gear, a first guide block, a fixing plate, a handle, a shaft hole, a supporting arc plate, a drill bit hole, a guide groove, a second guide block, a first spring, a third rotating shaft, a second support, a fifth bevel gear, a mounting arc block, an impact plate, a third support, a connecting plate, a fourth rotating shaft, a first sliding block, a trigger plate, a second sliding block, a sliding block groove, an impact block, a limiting block, a fifth rotating shaft, a driving plate, a sixth rotating shaft, a compression spring, a limiting spring, a guide groove and a limiting groove, wherein the upper end of the second mounting shell is an opening end; two guide grooves are uniformly formed in the inner circular surface of the second mounting shell in the circumferential direction; a drill bit hole is formed in the lower side surface of the second mounting shell; the two supporting arc plates are symmetrically arranged on the upper side of the second mounting shell, and arc surfaces of the two supporting arc plates are matched with the outer circular surface of the second mounting shell; two shaft holes are symmetrically formed in the two opposite side faces of the two supporting arc plates; the second mounting shell is mounted on the lower side of the first mounting shell through the matching of the two shaft holes and the two support shafts on the outer circular surface of the first mounting shell; the handle is arranged on the outer circular surface of the second mounting shell; one end of the first guide block is arranged in one of the two guide grooves formed in the second mounting shell; a first spring is arranged between the lower side surface of the first guide block and the lower side surface of the corresponding guide groove; one end of the second guide block is arranged in the other guide groove of the two guide grooves formed in the second mounting shell; a first spring is arranged between the lower side surface of the second guide block and the lower side surface of the corresponding guide groove; the two second supports are respectively arranged at the other ends of the first guide block and the second guide block; the third rotating shaft is arranged on the two second supports and is positioned at the upper ends of the two second supports; one end of the third gear is provided with bevel teeth, and the excircle surface of the other end of the third gear is a smooth surface; the third gear is arranged on the third rotating shaft; the smooth surface on the third gear is matched with a spherical friction ring in the driving mechanism; the fixing plate is arranged between the two second supports and is positioned at the lower ends of the two second supports; the drill bit fixing column is arranged on the fixing plate, and two ends of the drill bit fixing column are respectively positioned at the upper side and the lower side of the fixing plate; the fourth bevel gear is arranged at the upper end of the drill bit fixing column; the upper end of the drill bit is arranged at the lower side of the drill bit fixing shaft; the lower end of the drill bit passes through a drill bit hole in the second mounting shell and is positioned on the lower side of the second mounting shell.
The mounting structures on the two sides of the third gear are completely the same, and the mounting arc block is mounted on the inner circular surface of the second mounting shell through the arc-shaped surface on one of the two sides of the third gear; the end surface of the mounting arc block back to the arc surface is provided with a sliding groove; one end of the sliding groove penetrates through the mounting arc block; the bottom side surface of the sliding groove is provided with a guide groove; a limiting groove is formed in the lower side of the guide groove, and the limiting groove is close to one end, penetrating out of the sliding groove, of the mounting arc block; one end of the connecting plate is arranged at one side corresponding to the second support; one end of the third support is arranged at the other end of the connecting plate; the other end of the third support is provided with a fourth rotating shaft; a fifth bevel gear is arranged on the fourth rotating shaft; the fifth bevel gear is meshed with the third gear; the fifth rotating shaft is arranged on the fifth bevel gear and is close to the mounting arc block; one end of the driving plate is arranged on the fifth rotating shaft; the other end of the driving plate is provided with a sixth rotating shaft; the first sliding block is arranged on the sixth rotating shaft and matched with a sliding groove formed in the mounting arc block; the trigger plate is arranged on the lower side of the first sliding block and is matched with a guide groove formed in the mounting arc block; a clamping groove is formed in the lower side surface of the second sliding block; the second sliding block is arranged on the mounting arc block through the matching with a sliding groove formed on the mounting arc block; a compression spring is arranged between the second sliding block and the first sliding block; one side surface of the limiting block is provided with an inclined surface; the limiting block is arranged in a limiting groove formed in the mounting arc block; a limiting spring is arranged between the lower side surface of the limiting block and the lower side surface of the limiting groove; the limiting block is matched with the clamping groove on the lower side of the second sliding block; the inclined plane on the limiting block is matched with a trigger plate arranged on the first sliding block; the impact block is mounted on the second slide block.
The impact plate is arranged on the drill bit and is positioned in the second mounting shell; the impact plate is matched with the two corresponding impact blocks.
The fifth bevel gear, the fifth rotating shaft, the driving plate, the sixth rotating shaft, the first sliding block and the sliding block groove on the mounting arc block form a crank sliding block mechanism.
As a further improvement of the technology, a handle is arranged on the upper side end face of the first mounting shell.
As a further improvement of the present technology, the distance between the upper side surfaces of the first guide block and the second guide block to the upper side surface of the guide groove formed on the second mounting shell in the initial state is 2 times of the distance between the highest point of the third gear and the lowest point of the spherical friction ring; the function of the friction device is that in the working process, the friction force between the spherical friction ring and the third gear in the working process is enhanced; the length of the guide groove formed on the second mounting shell is enough to provide the moving distance of the first guide block and the second guide block.
As a further improvement of the present technology, the outer circumferential surface at the top end of the above-mentioned spherical friction ring has a thickened friction rubber thereon; the function of the friction ring is to strengthen the friction force of the top end of the spherical friction ring in the working process when the top end of the spherical friction ring is contacted with the third gear.
As a further improvement of the present technology, the first spring is an extension spring.
As a further improvement of the technology, one end of each of the two limiting blocks with the inclined plane in the initial state is respectively located in the corresponding slot formed in the two second sliding blocks; the two limiting blocks have a limiting effect on the two second sliding blocks.
According to the invention, two support shafts are uniformly arranged on the outer circular surface of a first mounting shell in the circumferential direction; the driving motor is arranged on the upper end surface of the inner side of the first mounting shell; the second rotating shaft is connected with the driving motor; the first bevel gear is arranged on the second rotating shaft; the first rotating shaft is arranged on the inner side of the first mounting shell through a support plate and a fourth support; the second bevel gear is arranged on the first rotating shaft and meshed with the first bevel gear; the spherical friction ring is arranged on the first rotating shaft; when the driving motor works, the driving motor can enable the second rotating shaft to rotate; the second rotating shaft rotates to drive the first bevel gear to rotate; the first bevel gear rotates to drive the second bevel gear to rotate; the second bevel gear rotates to drive the first rotating shaft to rotate; the rotation of the first shaft causes the spherical friction ring to rotate about the first shaft axis.
The second mounting shell is arranged on the lower side of the first mounting shell through the matching of the two shaft holes and the two support shafts on the outer circular surface of the first mounting shell; the handle is arranged on the outer circular surface of the second mounting shell; one end of the first guide block is arranged in one of the two guide grooves formed in the second mounting shell; a first spring is arranged between the lower side surface of the first guide block and the lower side surface of the corresponding guide groove; one end of the second guide block is arranged in the other guide groove of the two guide grooves formed in the second mounting shell; a first spring is arranged between the lower side surface of the second guide block and the lower side surface of the corresponding guide groove; the two second supports are respectively arranged at the other ends of the first guide block and the second guide block; the third rotating shaft is arranged on the two second supports; the third gear is arranged on the third rotating shaft; the smooth surface on the third gear is matched with a spherical friction ring in the driving mechanism; the fixing plate is arranged between the two second supports; the drill bit fixing column is arranged on the fixing plate; the fourth bevel gear is arranged at the upper end of the drill bit fixing column; the upper end of the drill bit is arranged at the lower side of the drill bit fixing shaft; the lower end of the drill bit penetrates through a drill bit hole in the second mounting shell and is positioned at the lower side of the second mounting shell; when the third gear rotates, the third gear can drive the fourth bevel gear to rotate; the fourth bevel gear rotates to drive the drill bit fixing column to rotate; the drill bit fixing column rotates to drive the drill bit to rotate; when the drill bit moves upwards, the drill bit drives the drill bit fixing column to move upwards; the drill fixing column moves upwards to drive the fixing plate to move upwards; the fixed plate moves upwards to drive the two second supports to move upwards; the two second supports move upwards to drive the first guide block and the second guide block to move upwards; the first guide block and the second guide block move upwards to stretch the two first springs; causing the two first springs to be forced; on the other hand, the two second supports move upwards to drive the third rotating shaft to move upwards; the third rotating shaft moves upwards to drive the third gear to move upwards; in the invention, the second mounting shell is arranged at the lower side of the first mounting shell through the matching of the two shaft holes and the two support shafts on the outer circular surface of the first mounting shell; therefore, when the second mounting shell is in a static state, namely the third gear, the fourth bevel gear and the drill bit are in a static state, the first mounting shell is pulled to enable the first mounting shell to swing around the supporting shaft relative to the second mounting shell; at the moment, the first mounting shell can drive the driving motor, the first bevel gear, the second bevel gear and the spherical friction ring to swing around the supporting shaft relative to the second mounting shell; i.e. the spherical friction oscillates around the supporting shaft in relation to the third gear.
The mounting arc block is mounted on the inner circular surface of the second mounting shell through the arc surface on the mounting arc block; one end of the connecting plate is arranged at one side corresponding to the second support; one end of the third support is arranged at the other end of the connecting plate; the other end of the third support is provided with a fourth rotating shaft; a fifth bevel gear is arranged on the fourth rotating shaft; the fifth bevel gear is meshed with the third gear; the fifth rotating shaft is arranged on a fifth bevel gear; one end of the driving plate is arranged on the fifth rotating shaft; the other end of the driving plate is provided with a sixth rotating shaft; the first sliding block is arranged on the sixth rotating shaft and matched with a sliding groove formed in the mounting arc block; the trigger plate is arranged on the lower side of the first sliding block and is matched with a guide groove formed in the mounting arc block; the second sliding block is arranged on the mounting arc block through the matching with a sliding groove formed on the mounting arc block; a compression spring is arranged between the second sliding block and the first sliding block; the limiting block is arranged in a limiting groove formed in the mounting arc block; a limiting spring is arranged between the lower side surface of the limiting block and the lower side surface of the limiting groove; the limiting block is matched with the clamping groove on the lower side of the second sliding block; the inclined plane on the limiting block is matched with a trigger plate arranged on the first sliding block; the impact block is arranged on the second sliding block; the impact plate is arranged on the drill bit; the impact plate is matched with the two corresponding impact blocks; when the third gear rotates, the third gear can drive the corresponding fifth bevel gear to rotate; the fifth bevel gear rotates to drive the corresponding fifth rotating shaft to rotate around the axis of the corresponding fifth bevel gear; the crank-slider mechanism is formed by the fifth bevel gear, the fifth rotating shaft, the driving plate, the sixth rotating shaft, the first slider and the slider grooves on the mounting arc block; therefore, when the fifth bevel gear drives the fifth rotating shaft to rotate around the axis of the fifth bevel gear, the corresponding first sliding block can slide in the sliding block groove on the corresponding installation arc plate; the first sliding block can drive the corresponding trigger plate to move towards one side provided with the limiting block on one hand in a sliding manner; one end of each of the two limiting blocks with the inclined planes is respectively positioned in the clamping grooves formed in the corresponding two second sliding blocks in the initial state; the two limiting blocks limit the two second sliding blocks; the two second sliders are static, so that on the other hand, the movement of the first slider compresses the corresponding compression spring; the inclined plane on the limiting block is matched with the trigger plate arranged on the first sliding block; when the trigger plate arranged on the first sliding block is contacted with the corresponding limiting block in the moving process, the trigger plate can extrude the corresponding limiting block; so that the limiting block moves towards one side provided with the limiting spring; when the limiting block is completely separated from the corresponding second sliding block, the limiting block loses the limiting effect on the corresponding second sliding block; the compression amount of the compression spring reaches the maximum; therefore, under the action of the corresponding compression spring, the two second sliding blocks can move downwards along the sliding block grooves; the two second sliding blocks move downwards to drive the two impact blocks to move downwards; the two impact blocks are contacted with the impact plate in the moving process, and the impact force of the downward movement of the two impact blocks is transmitted to the impact plate; causing the impact plate to have a downward impact force; the striking plate will transmit the impact force to the drill bit so that the drill bit has a downward impact force; after the impact is finished, the fifth rotating shaft also rotates to the original position; the first sliding block is also restored to the original position; the second sliding block can be restored to the original position under the action of the corresponding compression spring; the limiting block moves into the clamping groove on the second sliding block again under the action of the limiting spring to limit the second sliding block; when the fifth bevel gear continues to rotate, the drill bit can have a downward impact force again; under the action of a crank-slider mechanism consisting of a fifth bevel gear, a fifth rotating shaft, a driving plate, a sixth rotating shaft, a first slider and a slider groove on an installation arc block; during rotation of the third gear, the drill bit is intermittently subjected to a downward impact force. In the invention, the rotating speed of the third gear can be adjusted according to the difference of the contact positions of the spherical friction ring and the third gear; the moving frequency of the first sliding block is related to the rotating speed of the third gear; the rotating speed of the third gear affects the frequency of the back-and-forth movement of the first sliding block; when the rotating speed of the third gear is higher, the moving frequency of the first sliding block is higher; that is, the greater the impact frequency received by the drill, the faster the drill rotation speed for a certain impact frequency, the better the drill protection, so the drill protection can be better in the design in which the impact frequency is proportional to the drill rotation speed.
The spherical friction ring has the advantages that the rotating speed and the transmitted torque transmitted to the third gear by the spherical friction ring can be adjusted according to different distances between the spherical friction ring and the first rotating shaft, the transmitted torque is maximum when the top end of the spherical friction ring is in contact with the third gear, thickened friction rubber is arranged on the outer circular surface at the top end of the spherical friction ring, and the function of the thickened friction rubber is to strengthen the friction force in the state and provide larger torque.
Compared with the traditional drilling machine technology, the drilling machine designed by the invention can adjust the relative positions of the first mounting shell and the second mounting shell; namely, the diameter of the matched position of the spherical friction ring and the third gear is adjusted; thereby regulating the rotating speed and torque transmitted to the drill bit; the rotating speed and the torque of the drill bit are matched with the object to be drilled; the drill bit is prevented from being burnt due to the fact that the rotating speed of the drill bit is too high because the drilled objects are too hard; bringing inconvenience to the user.
Drawings
Fig. 1 is an external view of an entire part.
Fig. 2 is a schematic view of the overall component distribution.
Fig. 3 is a schematic view of the internal structural distribution of the whole component.
Fig. 4 is a schematic view of the internal structure installation of the integral component.
Fig. 5 is a schematic view of the second mounting shell installation.
Fig. 6 is a schematic view of the second mounting housing and the first mounting housing in cooperation.
Fig. 7 is a structural schematic view of a second mounting housing.
Fig. 8 is a schematic diagram of the internal structure of the transmission mechanism.
Fig. 9 is a schematic view of the internal structure of the drive mechanism.
Fig. 10 is a third gear mounting schematic.
FIG. 11 is a schematic view of the third gear and the fifth bevel gear in cooperation.
Fig. 12 is a plan view of the third gear and the fifth bevel gear in cooperation.
Fig. 13 is a first block mounting schematic.
Fig. 14 is a schematic view of the mounting arc block structure.
FIG. 15 is a schematic view of the trigger plate and the stop block.
Number designation in the figures: 1. a drill bit; 2. a transmission mechanism; 3. a drive mechanism; 4. a drive motor; 5. a first bevel gear; 6. a second bevel gear; 7. a third gear; 8. a drill bit fixing column; 9. a support shaft; 10. a first mounting case; 11. a spherical friction ring; 12. a second mounting case; 13. a fourth bevel gear; 14. a first rotating shaft; 15. a second rotating shaft; 16. a first guide block; 17. a fixing plate; 18. a handle; 19. a handle; 23. a shaft hole; 24. supporting the arc plate; 26. drilling a bit hole; 27. a guide groove; 29. a fourth support; 30. a first support; 31. a support plate; 32. a second guide block; 33. a first spring; 34. a third rotating shaft; 35. a second support; 36. a fifth bevel gear; 37. installing an arc block; 38. an impact plate; 39. a third support; 40. a connecting plate; 41. a fourth rotating shaft; 42. a first slider; 43. a trigger plate; 44. a second slider; 45. a slider slot; 46. an impact block; 47. a limiting block; 48. a fifth rotating shaft; 49. a drive plate; 50. a sixth rotating shaft; 51. a compression spring; 52. a limiting spring; 53. a guide groove; 54. a limiting groove.
Detailed Description
As shown in fig. 1, it comprises a drill bit 1, a transmission mechanism 2 and a driving mechanism 3, wherein as shown in fig. 2, the transmission mechanism 2 is arranged at the lower side of the driving mechanism 3; the drill bit 1 is mounted on the underside of the transmission 2.
As shown in fig. 2 and 9, the driving mechanism 3 includes a driving motor 4, a first bevel gear 5, a second bevel gear 6, a first mounting shell 10, a spherical friction ring 11, a first rotating shaft 14, a second rotating shaft 15, a first support 30, a support plate 31, a fourth support 29, and a support shaft 9, wherein as shown in fig. 6, the lower end of the first mounting shell 10 is an open end; two support shafts 9 are circumferentially and uniformly arranged on the outer circular surface of the first mounting shell 10; as shown in fig. 3, the driving motor 4 is mounted on the inner upper end surface of the first mounting case 10; as shown in fig. 9, the second rotating shaft 15 is installed inside the first installation case 10 through the first support 30, and the second rotating shaft 15 is rotatably connected with the driving motor 4; the first bevel gear 5 is arranged on the second rotating shaft 15; one end of the first rotating shaft 14 is provided with a support plate 31; the other end of the first rotating shaft 14 is provided with a fourth support 29; as shown in fig. 4, the first rotating shaft 14 is mounted inside the first mounting case 10 through a support plate 31 and a fourth support 29, the support plate 31 is mounted on the lower side of the first support 30, and the fourth support 29 is mounted on the inner circumferential surface of the first mounting case 10; as shown in fig. 9, the second bevel gear 6 is mounted on the first rotating shaft 14, and the second bevel gear 6 is engaged with the first bevel gear 5; the spherical friction ring 11 is mounted on the first shaft 14.
As shown in fig. 2 and 10, the transmission mechanism 2 includes a third gear 7, a drill fixing column 8, a second mounting housing 12, a fourth bevel gear 13, a first guide block 16, a fixing plate 17, a handle 18, a shaft hole 23, a support arc plate 24, a drill hole 26, a guide groove 27, a second guide block 32, a first spring 33, a third rotating shaft 34, a second support 35, a fifth bevel gear 36, a mounting arc block 37, a striking plate 38, a third support 39, a connecting plate 40, a fourth rotating shaft 41, a first slider 42, a trigger plate 43, a second slider 44, a slider groove 45, a striking block 46, a stopper 47, a fifth rotating shaft 48, a driving plate 49, a sixth rotating shaft 50, a compression spring 51, a stopper spring 52, a guide groove 53, and a stopper groove 54, wherein as shown in fig. 7, the upper end of the second mounting housing 12 is an open end; two guide grooves 27 are uniformly formed in the inner circumferential surface of the second mounting shell 12 in the circumferential direction; a drill hole 26 is formed on the lower side surface of the second mounting shell 12; the two supporting arc plates 24 are symmetrically arranged on the upper side of the second mounting shell 12, and the arc surfaces of the two supporting arc plates 24 are matched with the outer circular surface of the second mounting shell 12; two axial holes 23 are symmetrically formed on two opposite side surfaces of the two supporting arc plates 24; as shown in fig. 5 and 6, the second mounting shell 12 is mounted on the lower side of the first mounting shell 10 through the cooperation of the two shaft holes 23 and the two support shafts 9 on the outer circumferential surface of the first mounting shell 10; as shown in fig. 6, the handle 18 is mounted on the outer circumferential surface of the second mounting case 12; as shown in fig. 4, one end of the first guide block 16 is mounted in one 27 of two guide grooves 27 formed in the second mounting case 12; a first spring 33 is arranged between the lower side surface of the first guide block 16 and the lower side surface of the corresponding guide groove 27; one end of the second guide block 32 is mounted in the other guide groove 27 of the two guide grooves 27 formed in the second mounting case 12; a first spring 33 is arranged between the lower side surface of the second guide block 32 and the lower side surface of the corresponding guide groove 27; as shown in fig. 10, two second supports 35 are respectively installed at the other ends of the first guide block 16 and the second guide block 32; the third rotating shaft 34 is installed on the two second supports 35 and is located at the upper ends of the two second supports 35; one end of the third gear 7 is provided with bevel teeth, and the outer circular surface of the other end of the third gear 7 is a smooth surface; the third gear 7 is mounted on the third rotating shaft 34; the smooth surface on the third gear 7 is matched with a spherical friction ring 11 in the driving mechanism 3; the fixed plate 17 is installed between the two second supports 35, and the fixed plate 17 is located at the lower ends of the two second supports 35; the drill fixing column 8 is arranged on the fixed plate 17, and two ends of the drill fixing column 8 are respectively positioned at the upper side and the lower side of the fixed plate 17; a fourth bevel gear 13 is arranged at the upper end of the drill bit fixing column 8; the upper end of the drill bit 1 is arranged at the lower side of the fixed shaft of the drill bit 1; the lower end of the drill bit 1 is located on the underside of the second mounting shell 12 through a drill bit hole 26 in the second mounting shell 12.
As shown in fig. 8, the mounting structure is identical on both sides of the third gear 7, and for one of the two sides of the third gear 7, as shown in fig. 2, the mounting arc block 37 is mounted on the inner circular surface of the second mounting shell 12 through the arc surface thereof; as shown in fig. 14, a sliding groove is formed on the end surface of the mounting arc block 37 opposite to the arc surface; one end of the sliding groove penetrates through the mounting arc block 37; the bottom side surface of the sliding groove is provided with a guide groove 53; a limiting groove 54 is formed in the lower side of the guide groove 53, and the limiting groove 54 is close to one end, penetrating out of the mounting arc block 37, of the sliding groove; as shown in fig. 11, one end of the connection plate 40 is installed at one side corresponding to the second support 35; one end of the third support 39 is mounted on the other end of the connecting plate 40; the other end of the third support 39 is provided with a fourth rotating shaft 41; as shown in fig. 13, the fifth bevel gear 36 is mounted on the fourth rotating shaft 41; as shown in fig. 12, the fifth bevel gear 36 is meshed with the third gear 7; the fifth rotating shaft 48 is arranged on the fifth bevel gear 36 and is close to the mounting arc block 37; one end of the driving plate 49 is mounted on the fifth rotating shaft 48; the other end of the driving plate 49 is provided with a sixth rotating shaft 50; the first sliding block 42 is installed on the sixth rotating shaft 50, and the first sliding block 42 is matched with a sliding groove formed in the installation arc block 37; as shown in fig. 15, the trigger plate 43 is mounted on the lower side of the first slider 42, and the trigger plate 43 is engaged with a guide groove 53 opened on the mounting arc block 37; a clamping groove is formed on the lower side surface of the second sliding block 44; the second slide block 44 is mounted on the mounting arc block 37 by matching with a slide groove formed on the mounting arc block 37; a compression spring 51 is arranged between the second slide block 44 and the first slide block 42; one side surface of the limiting block 47 is provided with an inclined surface; the limiting block 47 is arranged in a limiting groove 54 formed in the mounting arc block 37; a limiting spring 52 is arranged between the lower side surface of the limiting block 47 and the lower side surface of the limiting groove 54; the limiting block 47 is matched with a clamping groove on the lower side of the second sliding block 44; as shown in fig. 13, the inclined surface of the stopper 47 cooperates with the trigger plate 43 mounted on the first slider 42; the impact block 46 is mounted on the second slider 44.
As shown in fig. 8, the striking plate 38 is mounted on the drill bit 1, and the striking plate 38 is located in the second mounting case 12; the impact plate 38 cooperates with two corresponding impact blocks 46.
The fifth bevel gear 36, the fifth rotating shaft 48, the driving plate 49, the sixth rotating shaft 50, the first slider 42 and the slider groove 45 of the mounting arc block 37 constitute a crank-slider mechanism.
As shown in fig. 5, a handle 19 is mounted on the upper end surface of the first mounting case 10.
The distance between the upper side surfaces of the first guide block 16 and the second guide block 32 to the upper side surface of the guide groove 27 formed on the second mounting shell 12 in the initial state is 2 times of the distance between the highest point of the third gear 7 to the lowest point of the spherical friction ring 11; the function of the friction device is that in the working process, the friction force between the spherical friction ring 11 and the third gear 7 in the working process is enhanced; the length of the guide slot 27 formed in the second mounting shell 12 is sufficient to provide a distance for the first guide block 16 and the second guide block 32 to move.
The first spring 33 is an extension spring.
One end of each of the two limiting blocks 47 having an inclined plane in the initial state is located in the corresponding slot on the two second sliders 44; the two limit blocks 47 limit the two second sliders 44.
In summary, the following steps:
the drilling machine designed by the invention can adjust the relative positions of the first mounting shell 10 and the second mounting shell 12; namely, the diameter of the matching position of the spherical friction ring 11 and the third gear 7 is adjusted; further adjusting the rotational speed and torque transmitted to the drill bit 1; the rotating speed and the torque of the drill bit 1 are matched with the drilled object; the drill bit 1 is prevented from being burnt out due to the fact that the rotating speed of the drill bit 1 is too high because the drilled objects are too hard; bringing inconvenience to the user.
Two supporting shafts 9 are uniformly arranged on the outer circular surface of a first mounting shell 10 in the circumferential direction; the driving motor 4 is arranged on the upper end surface of the inner side of the first mounting shell 10; the second rotating shaft 15 is connected with the driving motor 4 in a rotating mode; the first bevel gear 5 is arranged on the second rotating shaft 15; the first rotating shaft 14 is mounted inside the first mounting case 10 through the support plate 31 and the fourth support 29; the second bevel gear 6 is arranged on the first rotating shaft 14, and the second bevel gear 6 is meshed with the first bevel gear 5; the spherical friction ring 11 is arranged on the first rotating shaft 14; when the driving motor 4 is operated, the driving motor 4 can make the second rotating shaft 15 rotate; the second rotating shaft 15 rotates to drive the first bevel gear 5 to rotate; the first bevel gear 5 rotates to drive the second bevel gear 6 to rotate; the rotation of the second bevel gear 6 drives the first rotating shaft 14 to rotate; the rotation of the first rotating shaft 14 drives the spherical friction ring 11 to rotate around the axis of the first rotating shaft 14.
The second mounting shell 12 is mounted at the lower side of the first mounting shell 10 through the matching of the two shaft holes 23 and the two supporting shafts 9 on the outer circular surface of the first mounting shell 10; the handle 18 is mounted on the outer circumferential surface of the second mounting shell 12; one end of the first guide block 16 is mounted in one of the two guide grooves 27 formed in the second mounting case 12; a first spring 33 is arranged between the lower side surface of the first guide block 16 and the lower side surface of the corresponding guide groove 27; one end of the second guide block 32 is mounted in the other guide groove 27 of the two guide grooves 27 formed in the second mounting case 12; a first spring 33 is arranged between the lower side surface of the second guide block 32 and the lower side surface of the corresponding guide groove 27; two second supports 35 are respectively installed at the other ends of the first guide block 16 and the second guide block 32; the third rotating shaft 34 is mounted on two second supports 35; the third gear 7 is mounted on the third rotating shaft 34; the smooth surface on the third gear 7 is matched with a spherical friction ring 11 in the driving mechanism 3; the fixed plate 17 is mounted between the two second supports 35; the drill fixing column 8 is arranged on the fixing plate 17; a fourth bevel gear 13 is arranged at the upper end of the drill bit fixing column 8; the upper end of the drill bit 1 is arranged at the lower side of the fixed shaft of the drill bit 1; the lower end of the drill bit 1 passes through a drill bit hole 26 on the second mounting shell 12 and is positioned at the lower side of the second mounting shell 12; when the third gear 7 rotates, the third gear 7 drives the fourth bevel gear 13 to rotate; the fourth bevel gear 13 rotates to drive the drill bit fixing column 8 to rotate; the drill bit fixing column 8 rotates to drive the drill bit 1 to rotate; when the drill bit 1 moves upwards, the drill bit 1 drives the drill bit fixing column 8 to move upwards; the drill fixing column 8 moves upwards to drive the fixing plate 17 to move upwards; the fixed plate 17 moves upwards to drive the two second supports 35 to move upwards; the upward movement of the two second supports 35 drives the first guide block 16 and the second guide block 32 to move upward; the upward movement of the first guide block 16 and the second guide block 32 stretches the two first springs 33; causing the two first springs 33 to be forced; on the other hand, the upward movement of the two second supports 35 drives the third rotating shaft 34 to move upward; the upward movement of the third rotating shaft 34 drives the third gear 7 to move upward; in the invention, the second mounting shell 12 is arranged at the lower side of the first mounting shell 10 through the matching of the two shaft holes 23 and the two supporting shafts 9 on the outer circular surface of the first mounting shell 10; therefore, when the second mounting case 12 is in a stationary state, i.e., the third gear 7, the fourth bevel gear 13 and the drill bit 1 are in a stationary state, pulling the first mounting case 10 causes the first mounting case 10 to swing about the support shaft 9 with respect to the second mounting case 12; at this time, the first mounting shell 10 drives the driving motor 4, the first bevel gear 5, the second bevel gear 6 and the spherical friction ring 11 to swing around the supporting shaft 9 relative to the second mounting shell 12; i.e. the spherical friction ring 11 oscillates about the supporting shaft 9 with respect to the third gear wheel 7.
The mounting arc block 37 is mounted on the inner circular surface of the second mounting shell 12 through the arc surface thereof; one end of the connection plate 40 is installed at one side corresponding to the second support 35; one end of the third support 39 is mounted on the other end of the connecting plate 40; the other end of the third support 39 is provided with a fourth rotating shaft 41; a fifth bevel gear 36 is mounted on the fourth rotating shaft 41; the fifth bevel gear 36 meshes with the third gear 7; the fifth rotating shaft 48 is mounted on the fifth bevel gear 36; one end of the driving plate 49 is mounted on the fifth rotating shaft 48; the other end of the driving plate 49 is provided with a sixth rotating shaft 50; the first sliding block 42 is installed on the sixth rotating shaft 50, and the first sliding block 42 is matched with a sliding groove formed in the installation arc block 37; the trigger plate 43 is arranged at the lower side of the first sliding block 42, and the trigger plate 43 is matched with a guide groove 53 formed on the mounting arc block 37; the second slide block 44 is mounted on the mounting arc block 37 by matching with a slide groove formed on the mounting arc block 37; a compression spring 51 is arranged between the second slide block 44 and the first slide block 42; the limiting block 47 is arranged in a limiting groove 54 formed in the mounting arc block 37; a limiting spring 52 is arranged between the lower side surface of the limiting block 47 and the lower side surface of the limiting groove 54; the limiting block 47 is matched with a clamping groove on the lower side of the second sliding block 44; the inclined plane on the stop block 47 is matched with the trigger plate 43 arranged on the first slide block 42; the impact block 46 is mounted on the second slider 44; the impact plate 38 is mounted on the drill bit 1; the impact plate 38 cooperates with two corresponding impact blocks 46; when the third gear 7 rotates, the third gear 7 drives the corresponding fifth bevel gear 36 to rotate; the fifth bevel gears 36 rotate to drive the corresponding fifth rotating shafts 48 to rotate around the axes of the corresponding fifth bevel gears 36; the fifth bevel gear 36, the fifth rotating shaft 48, the driving plate 49, the sixth rotating shaft 50, the first sliding block 42 and the sliding block groove 45 on the mounting arc block 37 form a crank sliding block mechanism; when the fifth bevel gear 36 drives the fifth rotating shaft 48 to rotate around the axis of the fifth bevel gear 36, the corresponding first sliding block 42 slides in the corresponding sliding block slot 45 on the arc-shaped mounting plate; the sliding of the first slider 42 will drive the corresponding trigger plate 43 to move toward the side where the limit block 47 is installed; because one end of each of the two limiting blocks 47 having an inclined plane is located in the corresponding slot on the two second sliders 44 in the initial state; the two limiting blocks 47 limit the two second sliding blocks 44; the two second sliders 44 are stationary, so on the other hand the movement of the first slider 42 compresses the corresponding compression spring 51; since the inclined surface on the stopper 47 is engaged with the trigger plate 43 mounted on the first slider 42; when the trigger plate 43 mounted on the first slider 42 contacts the corresponding stopper 47 during the movement, the trigger plate 43 presses the corresponding stopper 47; so that the stopper 47 moves toward the side on which the stopper spring 52 is mounted; when the limiting block 47 is completely separated from the corresponding second slider 44, the limiting block 47 loses the limiting on the corresponding second slider 44; at this time, the compression amount of the compression spring 51 reaches the maximum; so that the two second sliders 44 are moved downward along the slider grooves 45 by the corresponding compression springs 51; the two second sliding blocks 44 move downwards to drive the two impact blocks 46 to move downwards; the two impact blocks 46 come into contact with the impact plate 38 during the movement, and the two impact blocks 46 transmit the impact force of their downward movement to the impact plate 38; causing the strike plate 38 to have a downward impact force; the striking plate 38 will transmit this impact force to the drill bit 1 so that the drill bit 1 has a downward impact force; when the impact is completed, the fifth rotating shaft 48 is also rotated to the original position; the first slider 42 is also restored to the original position; the second slider 44 will return to its original position under the action of the corresponding compression spring 51; the limiting block 47 moves into the clamping groove on the second sliding block 44 again under the action of the limiting spring 52 to limit the second sliding block 44; when the fifth bevel gear 36 continues to rotate, the drill bit 1 will again have a downward impact force; under the action of a crank-slider mechanism consisting of a fifth bevel gear 36, a fifth rotating shaft 48, a driving plate 49, a sixth rotating shaft 50, a first slider 42 and a slider groove 45 on the mounting arc block 37; during the rotation of the third gear wheel 7, the drill bit 1 is intermittently subjected to a downward impact force. In the invention, the rotating speed of the third gear 7 can be adjusted according to different contact positions of the spherical friction ring 11 and the third gear 7; and the frequency of movement of the first slider 42 is related to the speed of rotation of the third gear 7; the third gear 7 rotation speed affects the frequency of the first slider 42 moving back and forth; when the rotation speed of the third gear 7 is higher, the frequency of the movement of the first slider 42 is higher; i.e. the greater the impact frequency experienced by the drill bit 1.
The function of the spherical friction ring 11 in the present invention is to adjust the rotation speed of the spherical friction ring 11 transmitted to the third gear 7 according to the difference between the distance between the spherical friction ring 11 and the first rotation shaft 14.
The specific implementation mode is as follows: when people use the drilling machine designed by the invention, the driving motor 4 is controlled to enable the driving motor 4 to work; when the driving motor 4 is operated, the driving motor 4 can make the second rotating shaft 15 rotate; the second rotating shaft 15 rotates to drive the first bevel gear 5 to rotate; the first bevel gear 5 rotates to drive the second bevel gear 6 to rotate; the rotation of the second bevel gear 6 drives the first rotating shaft 14 to rotate; the first rotating shaft 14 rotates to drive the spherical friction ring 11 to rotate around the axis of the first rotating shaft 14; at the moment, people adjust the relative positions of the first mounting shell 10 and the second mounting shell 12 according to the hardness of the drilled object; namely, the diameter of the matching position of the spherical friction ring 11 and the third gear 7 is adjusted; further adjusting the rotational speed and torque transmitted to the drill bit 1; the rotating speed and the torque of the drill bit 1 are matched with the drilled object; after the adjustment is finished, the user presses the foremost end of the drill bit 1 to the object to be drilled, and the object to be drilled gives an upward thrust to the drill bit 1 so that the drill bit 1 moves upwards; the upward movement of the drill bit 1 causes the upward movement of the third gear 7 and finally the smooth face of the third gear 7 to come into contact with the spherical friction ring 11; at the moment, the spherical friction ring 11 rotates to drive the third gear 7 to rotate through friction; the third gear 7 drives the fourth bevel gear 13 to rotate; the fourth bevel gear 13 rotates to drive the drill bit fixing column 8 to rotate; the drill bit fixing column 8 rotates to drive the drill bit 1 to rotate; drilling can be carried out; if the rotating speed and the torque of the drill bit 1 are not matched with the hardness of the object to be drilled during the drilling process; lifting the drill bit 1 upwards; the third gear 7, the fourth bevel gear 13 and the drill bit 1 are restored to the original positions under the action of the corresponding first spring 33; at this time, the relative positions of the first and second mounting cases 10 and 12 are adjusted again; the rotating speed and the torque of the drill bit 1 are matched with the drilled object; drilling can be continued after the adjustment is completed; in the drilling process, the third gear 7 rotates to drive the corresponding fifth bevel gear 36 to rotate; the fifth bevel gear 36 rotates to cause the drill bit 1 to have an intermittent downward impact force; the drilling effect is increased.
Claims (6)
1. The utility model provides a strike type rotational speed adjustable rig which characterized in that: the drilling machine comprises a drill bit, a transmission mechanism and a driving mechanism, wherein the transmission mechanism is arranged on the lower side of the driving mechanism; the drill bit is arranged at the lower side of the transmission mechanism;
the driving mechanism comprises a driving motor, a first bevel gear, a second bevel gear, a first mounting shell, a spherical friction ring, a first rotating shaft, a second rotating shaft, a first support, a support plate, a fourth support and a support shaft, wherein the lower end of the first mounting shell is an opening end; two support shafts are uniformly arranged on the outer circular surface of the first mounting shell in the circumferential direction; the driving motor is arranged on the upper end surface of the inner side of the first mounting shell; the second rotating shaft is arranged on the inner side of the first mounting shell through a first support and is connected with the rotating shaft of the driving motor; the first bevel gear is arranged on the second rotating shaft; one end of the first rotating shaft is provided with a supporting plate; the other end of the first rotating shaft is provided with a fourth support; the first rotating shaft is arranged on the inner side of the first mounting shell through a support plate and a fourth support, the support plate is arranged on the lower side of the first support, and the fourth support is arranged on the inner circular surface of the first mounting shell; the second bevel gear is arranged on the first rotating shaft and meshed with the first bevel gear; the spherical friction ring is arranged on the first rotating shaft;
the transmission mechanism comprises a third gear, a drill bit fixing column, a second mounting shell, a fourth bevel gear, a first guide block, a fixing plate, a handle, a shaft hole, a supporting arc plate, a drill bit hole, a guide groove, a second guide block, a first spring, a third rotating shaft, a second support, a fifth bevel gear, a mounting arc block, an impact plate, a third support, a connecting plate, a fourth rotating shaft, a first sliding block, a trigger plate, a second sliding block, a sliding block groove, an impact block, a limiting block, a fifth rotating shaft, a driving plate, a sixth rotating shaft, a compression spring, a limiting spring, a guide groove and a limiting groove, wherein the upper end of the second mounting shell is an opening end; two guide grooves are uniformly formed in the inner circular surface of the second mounting shell in the circumferential direction; a drill bit hole is formed in the lower side surface of the second mounting shell; the two supporting arc plates are symmetrically arranged on the upper side of the second mounting shell, and arc surfaces of the two supporting arc plates are matched with the outer circular surface of the second mounting shell; two shaft holes are symmetrically formed in the two opposite side faces of the two supporting arc plates; the second mounting shell is mounted on the lower side of the first mounting shell through the matching of the two shaft holes and the two support shafts on the outer circular surface of the first mounting shell; the handle is arranged on the outer circular surface of the second mounting shell; one end of the first guide block is arranged in one of the two guide grooves formed in the second mounting shell; a first spring is arranged between the lower side surface of the first guide block and the lower side surface of the corresponding guide groove; one end of the second guide block is arranged in the other guide groove of the two guide grooves formed in the second mounting shell; a first spring is arranged between the lower side surface of the second guide block and the lower side surface of the corresponding guide groove; the two second supports are respectively arranged at the other ends of the first guide block and the second guide block; the third rotating shaft is arranged on the two second supports and is positioned at the upper ends of the two second supports; one end of the third gear is provided with bevel teeth, and the excircle surface of the other end of the third gear is a smooth surface; the third gear is arranged on the third rotating shaft; the smooth surface on the third gear is matched with a spherical friction ring in the driving mechanism; the fixing plate is arranged between the two second supports and is positioned at the lower ends of the two second supports; the drill bit fixing column is arranged on the fixing plate, and two ends of the drill bit fixing column are respectively positioned at the upper side and the lower side of the fixing plate; the fourth bevel gear is arranged at the upper end of the drill bit fixing column; the upper end of the drill bit is arranged at the lower side of the drill bit fixing column; the lower end of the drill bit penetrates through a drill bit hole in the second mounting shell and is positioned at the lower side of the second mounting shell;
the mounting structures on the two sides of the third gear are completely the same, and the mounting arc block is mounted on the inner circular surface of the second mounting shell through the arc-shaped surface on one of the two sides of the third gear; the end surface of the mounting arc block back to the arc surface is provided with a sliding groove; one end of the sliding groove penetrates through the mounting arc block; the bottom side surface of the sliding groove is provided with a guide groove; a limiting groove is formed in the lower side of the guide groove, and the limiting groove is close to one end, penetrating out of the sliding groove, of the mounting arc block; one end of the connecting plate is arranged at one side corresponding to the second support; one end of the third support is arranged at the other end of the connecting plate; the other end of the third support is provided with a fourth rotating shaft; a fifth bevel gear is arranged on the fourth rotating shaft; the fifth bevel gear is meshed with the third gear; the fifth rotating shaft is arranged on the fifth bevel gear and is close to the mounting arc block; one end of the driving plate is arranged on the fifth rotating shaft; the other end of the driving plate is provided with a sixth rotating shaft; the first sliding block is arranged on the sixth rotating shaft and matched with a sliding groove formed in the mounting arc block; the trigger plate is arranged on the lower side of the first sliding block and is matched with a guide groove formed in the mounting arc block; a clamping groove is formed in the lower side surface of the second sliding block; the second sliding block is arranged on the mounting arc block through the matching with a sliding groove formed on the mounting arc block; a compression spring is arranged between the second sliding block and the first sliding block; one side surface of the limiting block is provided with an inclined surface; the limiting block is arranged in a limiting groove formed in the mounting arc block; a limiting spring is arranged between the lower side surface of the limiting block and the lower side surface of the limiting groove; the limiting block is matched with the clamping groove on the lower side of the second sliding block; the inclined plane on the limiting block is matched with a trigger plate arranged on the first sliding block; the impact block is arranged on the second sliding block;
the impact plate is arranged on the drill bit and is positioned in the second mounting shell; the impact plate is matched with the two corresponding impact blocks;
the fifth bevel gear, the fifth rotating shaft, the driving plate, the sixth rotating shaft, the first sliding block and the sliding block groove on the mounting arc block form a crank sliding block mechanism.
2. The impact type adjustable rotation speed drilling machine as claimed in claim 1, wherein: the handle is installed on the upside terminal surface of first installation shell.
3. The impact type adjustable rotation speed drilling machine as claimed in claim 1, wherein: the distance between the upper side surfaces of the first guide block and the second guide block to the upper side surface of the guide groove formed in the second mounting shell in the initial state is 2 times of the distance between the highest point of the third gear and the lowest point of the spherical friction ring.
4. The impact type adjustable rotation speed drilling machine as claimed in claim 1, wherein: the outer circular surface at the top end of the spherical friction ring is provided with thickened friction rubber.
5. The impact type adjustable rotation speed drilling machine as claimed in claim 1, wherein: the first spring is an extension spring.
6. The impact type adjustable rotation speed drilling machine as claimed in claim 1, wherein: one end of each of the two limiting blocks with the inclined planes in the initial state is respectively positioned in the clamping grooves formed in the corresponding two second sliding blocks; the two limiting blocks have a limiting effect on the two second sliding blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307160.9A CN108544431B (en) | 2018-04-08 | 2018-04-08 | Impact type rotating speed adjustable drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307160.9A CN108544431B (en) | 2018-04-08 | 2018-04-08 | Impact type rotating speed adjustable drilling machine |
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| Publication Number | Publication Date |
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| CN108544431A CN108544431A (en) | 2018-09-18 |
| CN108544431B true CN108544431B (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810307160.9A Active CN108544431B (en) | 2018-04-08 | 2018-04-08 | Impact type rotating speed adjustable drilling machine |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201124364Y (en) * | 2007-10-01 | 2008-10-01 | 苏州宝时得电动工具有限公司 | Power tool |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2438763C3 (en) * | 1974-08-13 | 1980-11-13 | Kress-Elektrik Gmbh + Co, Elektromotorenfabrik, 7457 Bisingen | Drill that can be switched to turning and turning |
| GB2115337A (en) * | 1982-02-26 | 1983-09-07 | Black & Decker Inc | A power drill |
| GB9910599D0 (en) * | 1999-05-08 | 1999-07-07 | Black & Decker Inc | Rotary hammer |
| DE10021355B4 (en) * | 2000-05-02 | 2005-04-28 | Hilti Ag | Beating electric hand tool with vibration-decoupled assemblies |
| DE10149216A1 (en) * | 2001-10-05 | 2003-04-24 | Bosch Gmbh Robert | Hand-held machine tool e.g. hammer drills etc. ha impact tool driver unit with am element consists of two cam track parts acting in two different axial directions of an intermediate shaft |
| CN1663748A (en) * | 2005-04-12 | 2005-09-07 | 贺启宇 | Low-noise strong-impact weak-recoil electric hammer drill |
| CN107263402B (en) * | 2016-04-07 | 2023-12-29 | 浙江德硕科技股份有限公司 | Multifunctional electric hammer controlled by one key |
| CN205588242U (en) * | 2016-04-07 | 2016-09-21 | 浙江德世电器有限公司 | A key control's multi -functional electric hammer |
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2018
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201124364Y (en) * | 2007-10-01 | 2008-10-01 | 苏州宝时得电动工具有限公司 | Power tool |
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Effective date of registration: 20230630 Address after: Room 1-3, Enterprise Service Center, Middle Section of Jinlong Avenue, Wuyangba Street, Enshi City, Enshi Tujia and Miao Autonomous Prefecture, Hubei Province 445000 Patentee after: Enshi Anbesen Technology Service Co.,Ltd. Address before: 377 Wutang, Jinshan Village, Luoyang Town, Hui'an County, Quanzhou City, Fujian Province, 362100 Patentee before: Huian Luoyang dengxianpeng building cleaning service center Effective date of registration: 20230630 Address after: 445000 Laoyaguan, Group 6, Yangheba Village, Sanhu Township, Laifeng County, Enshi Tujia and Miao Autonomous Prefecture, Hubei Province Patentee after: Laifeng County Xinlong Mineral Products Processing Co.,Ltd. Address before: Room 1-3, Enterprise Service Center, Middle Section of Jinlong Avenue, Wuyangba Street, Enshi City, Enshi Tujia and Miao Autonomous Prefecture, Hubei Province 445000 Patentee before: Enshi Anbesen Technology Service Co.,Ltd. |
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