CN215318496U

CN215318496U - Electric hammer with shock-absorbing function

Info

Publication number: CN215318496U
Application number: CN202121748604.6U
Authority: CN
Inventors: 金士敏
Original assignee: Taizhou Lanjing Cleaning Machinery Co Ltd
Current assignee: Taizhou Lanjing Cleaning Machinery Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-12-28
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses an electric hammer with a shock absorption function, which comprises a shell and an end cover, wherein the end cover is arranged on the right side of the shell, a power assembly comprises a first gear, a motor, a second rotating shaft, a second gear, a disc, a connecting rod, a first piston, a second bevel gear, a first rotating shaft and a first bevel gear, the left side of the connecting rod is rotatably connected with a right side supporting seat of the first piston through a pin shaft, and the second bevel gear is meshed above the left side of the first bevel gear. This electric hammer with shock-absorbing function, structure scientific and reasonable, convenience safe in utilization is provided with the second piston, the push rod, the shell, the end cover, first spring, drum and end cover, in the use, the shock attenuation is carried out to vibrations through constantly being extrudeed or tensile of first spring during, has further reduced the sense of vibration of transmission to end cover department, has avoided prior art only to lead to the limited problem of the great shock attenuation effect of electric hammer vibration range of shock attenuation of liquid damping not through the shock attenuation of simple spring.

Description

Electric hammer with shock-absorbing function

Technical Field

The utility model relates to the technical field of electric hammers, in particular to an electric hammer with a damping function.

Background

The electric hammer is an electrodynamic type rotary hammer drill with a safety clutch and a pneumatic hammering mechanism, the electric hammer utilizes the principle of piston motion, compressed gas impacts a drill bit, great strength is not needed by hands, 6-100 mm holes can be formed in hard materials such as concrete, bricks and stones, the electric hammer is higher in hole forming efficiency on the materials, but cannot form holes in metal, and although the electric hammer can be used in the prior art, the problem that the vibration amplitude of the electric hammer is limited due to the fact that damping through a simple spring is not achieved in the prior art, and the damping effect of liquid damping is not achieved in the damping process of the prior art.

Disclosure of Invention

The utility model aims to provide an electric hammer with a damping function, and aims to solve the problem that the damping effect of the electric hammer is limited due to the fact that the damping is achieved only through a simple spring and the damping of liquid damping is not achieved in the background technology.

The utility model provides the following technical scheme for achieving the purpose: the electric hammer with the damping function comprises a shell and an end cover, wherein the end cover is arranged on the right side of the shell, and a power assembly is arranged below the right side inside the shell;

the power assembly comprises a first gear, a motor, a second rotating shaft, a second gear, a disc, a connecting rod, a first piston, a second bevel gear, a first rotating shaft and a first bevel gear;

the utility model discloses a piston, including shell, motor rigid coupling, output shaft, first pivot, second pivot, first bearing, first piston, second piston, first bevel gear, disc, first pivot, second pivot, first bevel gear, second gear, first gear, second gear, first gear, second gear, second and second gear, second and second gear, second and.

Preferably, the horizontal center of the connecting rod coincides with the position of the horizontal center of the first piston.

Preferably, a shock absorption assembly is arranged at the joint of the inner sides of the shell and the end cover;

the damping assembly comprises a cylinder, a shaft sleeve, a first spring, a cross rod, a third piston and a damping hole;

it is a plurality of the drum is both sides about the right-hand member of rigid coupling respectively, drum and the equal clearance fit of end cover, the inside equal rigid coupling in right side of drum has the axle sleeve, the inside slip of axle sleeve links to each other has the horizontal pole, the left and right sides of horizontal pole links to each other with third piston and end cover are fixed respectively, the inside equal rigid coupling in upper and lower both sides of third piston has the damping hole, the outer wall right side of horizontal pole is provided with first spring, the left and right sides of first spring links to each other with drum and end cover are fixed respectively.

Preferably, the upper cylinder, the lower cylinder and the cross bar are axially symmetrically distributed by taking the horizontal center of the end cover as a reference.

Preferably, a transmission assembly is arranged inside the left side of the shell;

the transmission assembly comprises a transverse cylinder, a second piston, a bearing seat, a drill bit seat, a second spring, a baffle and a push rod;

the horizontal section of thick bamboo is located inside the left side of shell, horizontal section of thick bamboo rotates with the shell and links to each other, the outer wall right side of horizontal section of thick bamboo links to each other with second bevel gear is fixed, the inner wall left and right sides of horizontal section of thick bamboo laminates with second piston and first piston respectively each other, the inside slip joint in left side of horizontal section of thick bamboo has the push rod, the bearing frame is installed to the left end outer wall of push rod, the outer wall and the shell of bearing frame are fixed to be linked to each other, the outer wall left side rigid coupling of push rod has the baffle, the left side of baffle is provided with the second spring, the left and right sides of second spring links to each other with the bearing inner wall and the baffle of bearing frame are fixed respectively, the left end rigid coupling of push rod has the drill bit seat.

Preferably, the lower extreme rigid coupling of shell has the handle, the left side internally mounted of end cover has the switch.

Compared with the prior art, the utility model has the beneficial effects that: this electric hammer with shock-absorbing function, structure scientific and reasonable, convenience safe in utilization:

be provided with the second piston, the push rod, a housing, the end cover, first spring, drum and end cover, in the use, equipment constantly shakes in the process of using, the continuous quilt of during through first spring extrudees or tensile carries out the shock attenuation to vibrations and weakens, simultaneously because the distance between drum and the end cover constantly changes, make the third piston remove in the inside of drum, damping fluid constantly reciprocates and is extruded about making the drum, the vibrations energy that the hammering produced not only converts into the inside damping fluid liquid pressure of drum in the use, the more effectual degree of rocking that leads to that slows down vibrations, the vibration sense of transmission to end cover department has further been reduced, the shock attenuation of having avoided prior art only through simple spring does not have the limited problem of the great shock attenuation effect of electric hammer amplitude of vibration that the damping of liquid damping leads to anyhow.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the housing, first gear and disk of FIG. 1;

FIG. 3 is a schematic view of the housing, the first spring and the cross plate of FIG. 1;

fig. 4 is a schematic view of the housing, the handle and the second spring of fig. 1.

In the figure: 1. the damping mechanism comprises a shell, 2, a power assembly, 201, a first gear, 202, a motor, 203, a second rotating shaft, 204, a second gear, 205, a disk, 206, a connecting rod, 207, a first piston, 208, a second bevel gear, 209, the first rotating shaft, 210, a first bevel gear, 3, a damping assembly, 301, a cylinder, 302, a shaft sleeve, 303, a first spring, 304, a cross rod, 305, a third piston, 306, a damping hole, 4, a transmission assembly, 401, a transverse cylinder, 402, a second piston, 403, a bearing seat, 404, a drill seat, 405, a second spring, 406, a baffle, 407, a push rod, 5, a handle, 6, an end cover, 7 and a switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an electric hammer with a shock absorption function comprises a shell 1 and an end cover 6, wherein the end cover 6 is arranged on the right side of the shell 1, a power assembly 2 is arranged below the right side inside the shell 1, the power assembly 2 comprises a first gear 201, a motor 202, a second rotating shaft 203, a second gear 204, a disc 205, a connecting rod 206, a first piston 207, a second bevel gear 208, a first rotating shaft 209 and a first bevel gear 210, the motor 202 is fixedly connected inside the right side below the shell 1, the motor 202 is DJ12B in type, the second rotating shaft 203 is fixedly connected to the upper end of an output shaft of the motor 202, the second gear 204 is fixedly connected to the lower portion of the outer wall of the second rotating shaft 203, the motor 202 can drive the first gear 201 and the second gear 204 to rotate, the first gear 201 is meshed with the left side of the second gear 204, the first rotating shaft 209 is fixedly connected to the inside of the first gear 201, the lower portions of the outer wall of the first rotating shaft 209 and the second rotating shaft 203 are rotatably connected with the shell 1 through bearings, the housing 1 can rotatably support a first rotating shaft 209 and a second rotating shaft 203, a first bevel gear 210 and a disc 205 are respectively fixedly connected to the upper ends of the first rotating shaft 209 and the second rotating shaft 203, the left side of the upper end of the disc 205 is rotatably connected with a connecting rod 206 through a pin shaft, the left side of the connecting rod 206 is rotatably connected with a right supporting seat of the first piston 207 through a pin shaft, the disc 205 can rotate to drive the first piston 207 to reciprocate left and right through the connecting rod 206, a second bevel gear 208 is engaged above the left side of the first bevel gear 210, the first rotating shaft 209 can drive the transverse cylinder 401 to rotate through the first bevel gear 210 and the second bevel gear 208, and the horizontal center of the connecting rod 206 is consistent with the horizontal center of the first piston 207.

The inner side connecting part of the shell 1 and the end cover 6 is provided with a shock absorption assembly 3, the shock absorption assembly 3 comprises a cylinder 301, a shaft sleeve 302, a first spring 303, a cross rod 304, a third piston 305 and a damping hole 306, the cylinders 301 are respectively fixedly connected with the upper side and the lower side of the right end of the shell 1, the cylinder 301 and the end cover 6 are in clearance fit, the shaft sleeve 302 is fixedly connected inside the right side of the cylinder 301, the shaft sleeve 302 is a sealed shaft sleeve, the shaft sleeve 302 can move on the outer wall of the cross rod 304 and can ensure relative sealing in the moving process, the cross rod 304 is connected inside the shaft sleeve 302 in a sliding manner, the left side and the right side of the cross rod 304 are respectively fixedly connected with the third piston 305 and the end cover 6, the damping hole 306 is fixedly connected inside the upper side and the lower side of the third piston 305, the damping liquid is supplemented inside the cylinder 301, the right side of the outer wall of the cross rod 304 is provided with the first spring 303, the elastic coefficient K of the first spring 303 is 500N/m, the left side and the right side of the first spring 303 are respectively fixedly connected with the cylinder 301 and the end cover 6, and the upper cylinder 301, the lower cylinder 301 and the cross rod 304 are axially symmetrically distributed by taking the horizontal center of the end cover 6 as a reference.

The transmission assembly 4 is arranged inside the left side of the shell 1, the transmission assembly 4 comprises a transverse cylinder 401, a second piston 402, a bearing seat 403, a drill bit seat 404, a second spring 405, a baffle 406 and a push rod 407, the transverse cylinder 401 is positioned inside the left side of the shell 1, the transverse cylinder 401 is rotatably connected with the shell 1, the right side of the outer wall of the transverse cylinder 401 is fixedly connected with a second bevel gear 208, the left side and the right side of the inner wall of the transverse cylinder 401 are respectively attached to the second piston 402 and the first piston 207, the second piston 402 and the first piston 207 can move inside the transverse cylinder 401 and ensure relative sealing in the moving process, the push rod 407 is slidably clamped inside the left side of the transverse cylinder 401, the push rod 407 can move inside the transverse cylinder 401, the right end of the push rod 407 is a square rod, the transverse cylinder 401 can drive the push rod 407 to rotate, the bearing seat 403 is installed on the left outer wall of the push rod 407, and the outer wall of the bearing seat 403 is fixedly connected with the shell 1, a baffle 406 is fixedly connected to the left side of the outer wall of the push rod 407, a second spring 405 is arranged on the left side of the baffle 406, the elastic coefficient K of the second spring 405 is 500N/m, the left side and the right side of the second spring 405 are fixedly connected with the inner wall of the bearing seat 403 and the baffle 406 respectively, a drill bit seat 404 is fixedly connected to the left end of the push rod 407, a handle 5 is fixedly connected to the lower end of the housing 1, a switch 7 is mounted inside the left side of the end cover 6, and the opening or closing of the motor 202 can be controlled through the switch 7.

When the electric hammer with the damping function is required to be used, firstly, a user can firstly install a corresponding drill bit or a cutter head required to be used into the drill bit seat 404, then, the user can hold the handle 5 with one hand and hold the end cover 6 with the other hand for use, then, the switch 7 can be pressed inwards to start the motor 202, so that the output shaft of the motor 202 can drive the first gear 204 and the second gear 201 to rotate, at the moment, the second gear 201 can drive the transverse cylinder 401 to rotate through the second bevel gear 208 and the first bevel gear 210, the transverse cylinder 401 can drive the drill bit to rotate through the push rod 407 and the drill bit seat 404, so as to realize the use of drilling, meanwhile, the second gear 201 can drive the disc 205 to rotate, so that the disc 205 can drive the first piston 207 to continuously reciprocate left and right through the connecting rod 206, so that the air pressure on the right side in the transverse cylinder 401 is constantly changed, so that the first piston 207 can drive the second piston 402 to continuously move left and right through the air pressure, the second piston 402 can be continuously hammered at the left end of the push rod 407, the drill base 404 can drive the drill to rotate and continuously hammer outwards to meet the use requirement, in the use process, the equipment is continuously vibrated in the use process due to hammering between the second piston 402 and the push rod 407, the relative distance between the shell 1 and the end cover 6 is continuously changed, the vibration is damped and weakened by continuous extrusion or stretching of the first spring 303 in the using process, meanwhile, the third piston 305 moves in the cylinder 301 due to continuous change of the distance between the cylinder 301 and the end cover 6, the left and right damping liquid of the cylinder 301 is continuously and repeatedly extruded, vibration energy generated by hammering in the use process is converted into the damping liquid pressure in the cylinder 301, the shaking degree caused by vibration is effectively slowed down, and the vibration sense transmitted to the end cover 6 is further reduced, the problem that in the prior art, the vibration amplitude of the electric hammer is limited due to the fact that only the simple spring is used for damping and the liquid damping is not used for damping is solved.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric hammer with shock-absorbing function, includes shell (1) and end cover (6), the right side of shell (1) is provided with end cover (6), its characterized in that: a power assembly (2) is arranged below the right side inside the shell (1);

the power assembly (2) comprises a first gear (201), a motor (202), a second rotating shaft (203), a second gear (204), a disc (205), a connecting rod (206), a first piston (207), a second bevel gear (208), a first rotating shaft (209) and a first bevel gear (210);

the motor (202) is fixedly connected inside the lower right side of the shell (1), the upper end of an output shaft of the motor (202) is fixedly connected with a second rotating shaft (203), a second gear (204) is fixedly connected below the outer wall of the second rotating shaft (203), the left side of the second gear (204) is meshed and connected with a first gear (201), the inside of the first gear (201) is fixedly connected with a first rotating shaft (209), the lower sides of the outer walls of the first rotating shaft (209) and the second rotating shaft (203) are rotatably connected with the shell (1) through bearings, the upper ends of the first rotating shaft (209) and the second rotating shaft (203) are fixedly connected with a first bevel gear (210) and a disc (205) respectively, the left side of the upper end of the disc (205) is rotatably connected with a connecting rod (206) through a pin shaft, the left side of the connecting rod (206) is rotatably connected with a right side supporting seat of a first piston (207) through a pin shaft, and a second bevel gear (208) is meshed above the left side of the first bevel gear (210).

2. The electric hammer with the shock-absorbing function according to claim 1, wherein: the horizontal center of the connecting rod (206) coincides with the position of the horizontal center of the first piston (207).

3. The electric hammer with the shock-absorbing function according to claim 1, wherein: a damping component (3) is arranged at the joint of the inner sides of the shell (1) and the end cover (6);

the shock absorption assembly (3) comprises a cylinder (301), a shaft sleeve (302), a first spring (303), a cross rod (304), a third piston (305) and a damping hole (306);

it is a plurality of drum (301) rigid coupling is both sides about the right-hand member of shell (1) respectively, drum (301) and the equal clearance fit of end cover (6), the inside equal rigid coupling in right side of drum (301) has axle sleeve (302), the inside slip of axle sleeve (302) has linked together horizontal pole (304), the left and right sides of horizontal pole (304) links to each other with third piston (305) and end cover (6) are fixed respectively, the inside equal rigid coupling in upper and lower both sides of third piston (305) has damping hole (306), the outer wall right side of horizontal pole (304) is provided with first spring (303), the left and right sides of first spring (303) links to each other with drum (301) and end cover (6) are fixed respectively.

4. The electric hammer with damping function of claim 3, wherein: the upper cylinder (301) and the lower cylinder (301) and the cross rod (304) are axially symmetrically distributed by taking the horizontal center of the end cover (6) as a reference.

5. The electric hammer with the shock-absorbing function according to claim 1, wherein: a transmission assembly (4) is arranged inside the left side of the shell (1);

the transmission assembly (4) comprises a transverse cylinder (401), a second piston (402), a bearing seat (403), a drill bit seat (404), a second spring (405), a baffle (406) and a push rod (407);

the transverse cylinder (401) is positioned inside the left side of the shell (1), the transverse cylinder (401) is rotationally connected with the shell (1), the right side of the outer wall of the transverse cylinder (401) is fixedly connected with a second bevel gear (208), the left side and the right side of the inner wall of the transverse cylinder (401) are respectively attached to a second piston (402) and a first piston (207), a push rod (407) is slidably clamped in the left inner part of the transverse cylinder (401), a bearing seat (403) is installed on the outer wall of the left end of the push rod (407), the outer wall of the bearing seat (403) is fixedly connected with the shell (1), the left side of the outer wall of the push rod (407) is fixedly connected with a baffle (406), a second spring (405) is arranged on the left side of the baffle (406), the left side and the right side of the second spring (405) are respectively fixedly connected with the inner wall of the bearing seat (403) and the baffle (406), and a drill seat (404) is fixedly connected with the left end of the push rod (407).

6. The electric hammer with the shock-absorbing function according to claim 1, wherein: the lower extreme rigid coupling of shell (1) has handle (5), the left side internally mounted of end cover (6) has switch (7).