CN211541092U - Portable charging electric hammer - Google Patents
Portable charging electric hammer Download PDFInfo
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- CN211541092U CN211541092U CN201922309250.4U CN201922309250U CN211541092U CN 211541092 U CN211541092 U CN 211541092U CN 201922309250 U CN201922309250 U CN 201922309250U CN 211541092 U CN211541092 U CN 211541092U
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Abstract
The utility model discloses a portable rechargeable electric hammer, including left and right casing, impact slewing mechanism, power transmission mechanism, left and right casing be equipped with inclosed lubrication cavity through left and right casing sealing washer, impact slewing mechanism and power transmission mechanism install in lubrication cavity, impact slewing mechanism include hammer stem, hammer stem cover, commentaries on classics cover, impact hammer, secondary gear wheel, cylinder, the commentaries on classics cover sets up on left and right casing, the hammer stem sets up on changeing the cover, the hammer stem cover is fixed in changeing the cover, is equipped with hammer stem cover sealing washer on the hammer stem cover, the cylinder sets up on changeing the cover, impact hammer sets up in the cylinder, the secondary gear wheel is fixed connection on changeing the cover; when the power transmission mechanism drives the second-stage gear wheel to rotate, the drill bit is driven to rotate through the rotating sleeve, and when the power transmission mechanism drives the air cylinder, the drill bit is impacted in a reciprocating mode through the hammer rod by the impact hammer. After adopting this structure, have simple structure reasonable, lubricated effectual, frictional resistance is little, dismantle advantages such as repair convenience, long service life.
Description
Technical Field
The utility model relates to a rechargeable electric tool technical field, especially a lubricated effectual, dismantle convenient portable electric hammer that charges.
Background
The charging electric hammer is an electric tool which can drive a drill bit to rotate and can also hammer the drill bit in a reciprocating mode without connecting a 220V power supply, when the electric hammer works, a power transmission mechanism drives a second-stage large gear to rotate and drives the drill bit arranged on a drill chuck to rotate through a rotating sleeve, the power transmission mechanism drives a cylinder to compress air in a reciprocating mode to enable air pressure in the cylinder to change periodically, a hammer rod is driven by a hammer to impact the drill bit in a reciprocating mode, and the charging electric hammer is mainly used for drilling holes in concrete, floor slabs, brick walls and stone materials. The existing charging electric hammer has the following problems in the using process: firstly, the poor leakproofness of rotating impact mechanism and power transmission mechanism causes lubricating oil to leak, leads to lubricated effect poor, and hammer stem sealing washer, impact hammer sealing washer wearing and tearing speed are big, and cylinder and impact hammer reciprocating motion resistance are big. Secondly, because the hammer stem sealing ring and the impact hammer sealing ring have short service life, the hammer stem, the impact hammer and the piston need to be frequently repaired and exchanged, but the traditional hammer stem is difficult to disassemble, so that the repair and the exchange are very inconvenient. Thirdly, the swing rod bearing and the intermediate shaft generate heat through rotational friction, the abrasion speed is high, and the service life is short. Aiming at the problems, many manufacturers and acquaintances develop and develop the products, but no ideal products are seen.
Disclosure of Invention
In order to overcome the problems existing in the prior art, the first object of the utility model is to provide a portable charging electric hammer which has the advantages of simple and reasonable structure, good lubricating effect, small frictional resistance, convenient disassembly and repair, low noise and long service life.
The utility model solves the technical problems and adopts the technical proposal that the drill chuck comprises a left shell, a right shell, a motor, a switch assembly, a lithium battery pack, an impact rotating mechanism, a power transmission mechanism and a drill chuck which are arranged on the left shell and the right shell, wherein the left shell and the right shell are provided with a closed lubricating cavity through a left shell sealing ring and a right shell sealing ring, the impact rotating mechanism and the power transmission mechanism are correspondingly arranged in the lubricating cavity, the impact rotating mechanism comprises a hammer rod, a hammer rod sleeve, a rotating sleeve, a punching hammer, a second-level gear wheel and a cylinder, the rotating sleeve is rotatablely arranged on the left shell and the right shell, a framework oil seal is arranged between the rotating sleeve and the left shell, the front end of the rotating sleeve is provided with a drill rod sleeve, the drill chuck is arranged on the drill rod sleeve, the hammer rod is glidingly arranged on the rotating sleeve through a hammer rod sealing ring, the hammer rod sleeve is fixed in the rotating, the hammer rod sleeve is provided with a hammer rod sleeve sealing ring which is in sealing fit with the hammer rod, the cylinder is arranged on the rotating sleeve in a reciprocating motion manner, the impact hammer is arranged in the cylinder in a sliding manner through the impact hammer sealing ring, and the secondary large gear is fixedly connected on the rotating sleeve; when the power transmission mechanism drives the second-stage gear wheel to rotate, the drill bit arranged on the drill chuck is driven to rotate through the rotary sleeve, and when the power transmission mechanism drives the air cylinder to reciprocate, the impact hammer is driven to impact the drill bit in a reciprocating manner through the hammer rod.
The utility model discloses a further scheme, power transmission mechanism including rotationally set up about in the lubrication chamber on the casing jackshaft, the cover establish clutch and swing rod bearing on the jackshaft, fix the one-level gear on the jackshaft, the rotor tooth cover and the one-level gear engagement of motor, swing rod bearing's pendulum rod corresponds to be connected on the cylinder, be equipped with on the jackshaft with second grade gear wheel toothing's pinion.
The further proposal of the utility model is that the rotary sleeve is provided with an inner clamp spring dismounting hole which is convenient for dismounting the clamp spring in the hammer stem sleeve.
The utility model discloses a further scheme, the jackshaft on be equipped with the oil storage tank of lubricated pendulum rod bearing.
After adopting above-mentioned structure, compare with prior art and have following advantage and effect: firstly, because impact slewing mechanism and power transmission mechanism correspond to install in inclosed lubricated cavity, lubricated effectual, wearing and tearing are little, long service life. Secondly, because the rotating sleeve is provided with the inner clamp spring dismounting hole which is convenient for dismounting the clamp spring in the hammer rod sleeve, the clamp spring in the hammer rod sleeve can be quickly dismounted from the rotating sleeve through the inner clamp spring dismounting hole during dismounting and repairing, the dismounting is simple and convenient, the inner clamp spring dismounting hole can play a role in quick exhaust, and the movement resistance of the impact hammer is reduced. And thirdly, as the oil storage tank for lubricating the swing rod bearing is arranged on the intermediate shaft, the lubricating effect between the intermediate shaft and the lubricating swing rod bearing can be ensured, and the problem of short service life caused by abrasion and heating is effectively solved.
Drawings
Fig. 1 is a schematic view of the fitting structure of the present invention.
Fig. 2 is a schematic view of the assembly structure of the hammer rod of the present invention.
The drill chuck comprises a drill chuck 1, a hammer rod 2, a hammer rod sleeve 3, a skeleton oil seal 4, a rotary sleeve 5, a punch hammer 6, a shell body about 7, a shell body sealing ring about 8, a cylinder 9, a swing rod bearing 10, a primary gear 11, a rotor gear sleeve 12, a middle shaft 13, a motor 14, a switch assembly 15, a hammer rod sealing ring 16, a snap spring in the hammer rod sleeve 17, a hammer rod sleeve sealing ring 18, a punch hammer sealing ring 19, a secondary gear wheel 20, a toothed shaft 21, a clutch 22, an oil storage tank 23, a lithium battery pack 24 and a snap spring dismounting hole in 25.
Detailed Description
Fig. 1 and 2 show a specific embodiment of the portable rechargeable electric hammer of the present invention, which comprises a left and a right housing 7, a motor 14 mounted on the left and the right housing 7, a switch assembly 15, a lithium battery pack 24, an impact rotation mechanism, a power transmission mechanism, and a drill chuck 1, wherein the left and the right housing 7 are provided with a sealed lubrication chamber through a left and a right housing seal ring 8, the impact rotation mechanism and the power transmission mechanism are correspondingly mounted in the lubrication chamber, the impact rotation mechanism comprises a hammer rod 2, a hammer rod sleeve 3, a rotary sleeve 5, a hammer 6, a second-stage gear wheel 20, and a cylinder 9, the rotary sleeve 5 is rotatably mounted on the left and the right housing 7, a framework oil seal 4 is arranged between the rotary sleeve 5 and the left and the right housing 7 of the lubrication chamber, a drill rod sleeve is arranged at the front end of the rotary sleeve 5, the drill chuck 1 is mounted on the drill rod sleeve, the hammer rod 2 is, the hammer rod sleeve 3 is fixed in the rotary sleeve 5 through a hammer rod sleeve inner snap spring 17 and covers the hammer rod 2, a hammer rod sealing ring 16 is installed in a sealing groove formed between the rotary sleeve 5 and the hammer rod sleeve 3, a hammer rod sleeve sealing ring 18 in sealing fit with the hammer rod 2 is arranged on the hammer rod sleeve 3, the air cylinder 9 is arranged in the rotary sleeve 5 in a reciprocating manner, the impact hammer 6 is arranged in the air cylinder 9 in a sliding manner through an impact hammer sealing ring 19, and the secondary bull gear 20 is fixedly connected to the rotary sleeve 5; when the power transmission mechanism drives the second-stage gearwheel 20 to rotate, the drill bit arranged on the drill chuck 1 is driven to rotate through the rotating sleeve 5, and when the power transmission mechanism drives the cylinder 9 to reciprocate, the impact hammer 6 is driven, and the impact hammer 6 impacts the drill bit in a reciprocating manner through the hammer rod 2.
In order to ensure stable and reliable transmission, the power transmission mechanism comprises an intermediate shaft 13, a clutch 22, a swing rod bearing 10 and a first-stage gear 11, wherein the intermediate shaft 13 is rotatably arranged on a left shell 7 and a right shell 7 in the lubricating cavity, the clutch 22 and the swing rod bearing 10 are sleeved on the intermediate shaft 13, the first-stage gear 11 is fixed on the intermediate shaft 13, a rotor gear sleeve 12 of a motor 14 is meshed with the first-stage gear 11, a swing rod of the swing rod bearing 10 is correspondingly connected to the air cylinder 9, and a gear shaft 21 meshed with a. The swing rod bearing 10 can be controlled to synchronously rotate with the intermediate shaft 13 or idle relative to the intermediate shaft 13 through the clutch 22, so that the control of the reciprocating impact drill bit is realized.
In order to facilitate repair and replacement, the rotating sleeve 5 is provided with an inner clamp spring dismounting hole 25 which is convenient for dismounting the clamp spring 17 in the hammer rod sleeve. In order to ensure lubrication and reduce friction heating, the intermediate shaft 13 is provided with an oil storage tank 23 for lubricating the swing rod bearing 10.
The above description is only the specific embodiment of the present invention, and is not intended to limit the present invention in any form, and the present invention does not depart from the technical solution of the present invention, and the made simple modification, equivalent change or modification all fall into the protection scope of the present invention.
Claims (4)
1. The utility model provides a portable electric hammer that charges, includes left and right sides casing (7), installs motor (14), switch assembly (15), lithium cell package (24) on left and right sides casing (7) and strikes slewing mechanism, power transmission mechanism, drill chuck (1), characterized by: the left and right shells (7) are provided with a closed lubricating cavity through a left and right shell sealing ring (8), an impact rotating mechanism and a power transmission mechanism are correspondingly arranged in the lubricating cavity, the impact rotating mechanism comprises a hammer rod (2), a hammer rod sleeve (3), a rotating sleeve (5), a punching hammer (6), a second-stage large gear (20) and a cylinder (9), the rotating sleeve (5) is rotatably arranged on the left and right shells (7), a framework oil seal (4) is arranged between the rotating sleeve (5) and the left and right shells (7), a drill rod sleeve is arranged at the front end of the rotating sleeve (5), a drill chuck (1) is arranged on the drill rod sleeve, the hammer rod (2) is slidably arranged on the rotating sleeve (5) through a hammer rod sealing ring (16), the hammer rod sleeve (3) is fixed in the rotating sleeve (5) through a hammer rod sleeve inner snap spring (17) and covers the hammer rod (2), the hammer rod sealing ring (16) is arranged in a sealing groove formed between the rotating sleeve (5) and the hammer rod sleeve (3), a hammer rod sleeve sealing ring (18) which is in sealing fit with the hammer rod (2) is arranged on the hammer rod sleeve (3), the cylinder (9) is arranged on the rotating sleeve (5) in a reciprocating manner, the impact hammer (6) is arranged in the cylinder (9) in a sliding manner through the impact hammer sealing ring (19), and the secondary bull gear (20) is fixedly connected to the rotating sleeve (5); when the power transmission mechanism drives the second-stage large gear (20) to rotate, the drill bit arranged on the drill chuck (1) is driven to rotate through the rotating sleeve (5), when the power transmission mechanism drives the cylinder (9) to reciprocate, the impact hammer (6) is driven, and the drill bit is impacted in a reciprocating mode through the hammer rod (2).
2. The portable rechargeable electric hammer of claim 1, wherein: the power transmission mechanism comprises an intermediate shaft (13) which is rotatably arranged on a left shell (7) and a right shell (7) in the lubricating cavity, a clutch (22) and a swing rod bearing (10) which are sleeved on the intermediate shaft (13), and a first-stage gear (11) which is fixed on the intermediate shaft (13), wherein a rotor gear sleeve (12) of a motor (14) is meshed with the first-stage gear (11), a swing rod of the swing rod bearing (10) is correspondingly connected onto a cylinder (9), and a gear shaft (21) which is meshed with a second-stage gear wheel (20) is arranged on the intermediate shaft (13).
3. The portable rechargeable electric hammer according to claim 1 or 2, wherein: the rotating sleeve (5) is provided with an inner clamp spring dismounting hole (25) which is convenient for dismounting the clamp spring (17) in the hammer rod sleeve.
4. The portable rechargeable electric hammer of claim 2, wherein: and an oil storage tank (23) for lubricating the swing rod bearing (10) is arranged on the intermediate shaft (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309250.4U CN211541092U (en) | 2019-12-20 | 2019-12-20 | Portable charging electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309250.4U CN211541092U (en) | 2019-12-20 | 2019-12-20 | Portable charging electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211541092U true CN211541092U (en) | 2020-09-22 |
Family
ID=72507883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922309250.4U Active CN211541092U (en) | 2019-12-20 | 2019-12-20 | Portable charging electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211541092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116352657A (en) * | 2023-04-18 | 2023-06-30 | 浙江德硕科技股份有限公司 | Lithium electric hammer with automatic lubrication system |
| WO2024008135A1 (en) * | 2022-07-06 | 2024-01-11 | 浙江千机智能科技有限公司 | Rotary hammer |
-
2019
- 2019-12-20 CN CN201922309250.4U patent/CN211541092U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024008135A1 (en) * | 2022-07-06 | 2024-01-11 | 浙江千机智能科技有限公司 | Rotary hammer |
| CN116352657A (en) * | 2023-04-18 | 2023-06-30 | 浙江德硕科技股份有限公司 | Lithium electric hammer with automatic lubrication system |
| CN116352657B (en) * | 2023-04-18 | 2023-09-05 | 浙江德硕科技股份有限公司 | Lithium electric hammer with automatic lubrication system |
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