CN210066749U - Eccentric assembly for vibration hammer - Google Patents
Eccentric assembly for vibration hammer Download PDFInfo
- Publication number
- CN210066749U CN210066749U CN201920220556.XU CN201920220556U CN210066749U CN 210066749 U CN210066749 U CN 210066749U CN 201920220556 U CN201920220556 U CN 201920220556U CN 210066749 U CN210066749 U CN 210066749U
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- driving
- eccentric
- driven
- eccentric gear
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Abstract
The utility model discloses an eccentric component for a vibrating hammer, which comprises a driving eccentric component and a driven eccentric component, wherein the driving eccentric component is meshed with the driven eccentric component; the driving eccentric assembly comprises a driving shaft, the two ends of the driving shaft are small, the middle of the driving shaft is large, a flat key groove is formed in the circumferential surface of the middle of the driving shaft, a through hole structure is formed in the driving shaft, a spline groove is formed in one end hole of the driving shaft, a driving eccentric gear is sleeved on the driving shaft, bearings are respectively sleeved on the front and the back of the driving eccentric gear, and a flat key buckled with the flat key groove is arranged in the driving eccentric gear; the driven eccentric component comprises a driven shaft, a driven eccentric gear is sleeved on the driven shaft, and the driven eccentric gear is the same as the driving eccentric gear of the driving eccentric component in specification. Through adopting initiative eccentric gear and driven eccentric gear engaged mode mutually, need not additionally be equipped with the eccentric block, can not have the risk that the bolt takes place fatigue fracture and drops after long-time operation.
Description
Technical Field
The utility model relates to an eccentric subassembly in pile mechanical equipment field, in particular to eccentric subassembly for vibratory hammer.
Background
The hydraulic vibration hammer is a device which is powered by a hydraulic pump driven by a motor, takes hydraulic oil as a working medium, and utilizes the pressure of the hydraulic oil to transmit power to drive a pile hammer to carry out pile driving operation. Since the advent, the hydraulic vibratory hammer has the advantages of no need of complex external equipment, huge striking energy and wide application occasions, is widely applied to basic construction projects such as city construction, bridges, ports and the like, and is necessary equipment for basic construction. The basic working principle of the hydraulic vibration hammer is as follows: the vibration hammer generates periodic exciting force to vibrate the pile body, so that the soil around the pile body is liquefied to reduce the friction resistance of the soil to the pile body, and the pile body can be driven into the soil under the action of the vibrating force and the gravity.
The eccentric assembly is mounted in the housing of the vibratory hammer and is the primary source of vibration generated by the vibratory hammer. Traditional vibrting hammer generally additionally is equipped with eccentric block, installs on eccentric gear through the bolt, because eccentric subassembly carries out high-speed rotation all the time in the course of the work, has the bolt behind the long-time operation to take place fatigue fracture and the risk that drops, influences the construction operation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an eccentric subassembly for the vibrohammer that can strengthen the security.
In order to solve the technical problem, the utility model discloses a technical scheme does:
an eccentric component for a vibrating hammer comprises a driving eccentric component and a driven eccentric component, wherein the driving eccentric component is meshed with the driven eccentric component;
the driving eccentric assembly comprises a driving shaft, the two ends of the driving shaft are small, the middle of the driving shaft is large, a flat key groove is formed in the circumferential surface of the middle of the driving shaft, a through hole structure is formed in the driving shaft, a spline groove is formed in one end hole of the driving shaft, a driving eccentric gear is sleeved on the driving shaft, bearings are respectively sleeved on the front and the back of the driving eccentric gear, and a flat key buckled with the flat key groove is arranged in the driving eccentric gear;
the driven eccentric component comprises a driven shaft, a driven eccentric gear is sleeved on the driven shaft, and the driven eccentric gear is the same as the driving eccentric gear of the driving eccentric component in specification.
Preferably, the driving eccentric gear and the driven eccentric gear are provided with counterweight alloy.
Preferably, the counterweight alloy and the driving eccentric gear and the driven eccentric gear are in interference fit respectively.
By adopting the technical scheme, the driving eccentric gear and the driven eccentric gear are meshed, an eccentric block does not need to be additionally equipped, and the risk that the bolt is fatigue-broken and falls off after long-time operation is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the driving shaft of the present invention.
In the figure, 1-driving eccentric gear, 2-driven eccentric gear, 3-bearing, 4-driving shaft, 5-spline groove, 6-counterweight alloy, 7-driven shaft and 8-flat key groove.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and 2, an eccentric assembly for a vibration hammer includes a driving eccentric assembly and a driven eccentric assembly, the driving eccentric assembly being engaged with the driven eccentric assembly;
the driving eccentric assembly comprises a driving shaft 4, the two ends of the driving shaft 4 are small, the middle of the driving shaft is large, a flat key groove 8 is formed in the circumferential surface of the middle of the driving shaft 4, a through hole structure is formed in the shaft of the driving shaft 4, a spline groove 5 is formed in one end hole of the driving shaft 4, a driving eccentric gear 1 is sleeved on the driving shaft 4, bearings 3 are respectively sleeved on the front and the rear of the driving eccentric gear 1, and a flat key buckled with the flat key groove 8 is arranged in the driving eccentric gear 1;
the driven eccentric assembly comprises a driven shaft 7, a driven eccentric gear 2 is sleeved on the driven shaft 7, and the driven eccentric gear 2 and a driving eccentric gear 1 of the driving eccentric assembly are the same in specification;
preferably, the driving eccentric gear 1 and the driven eccentric gear 2 are provided with counterweight alloy 6, which is more beneficial to the continuous motion of the eccentric assembly, and preferably, the counterweight alloy 6 and the driving eccentric gear 1 and the driven eccentric gear 2 are respectively in interference fit, so that the structure is more firm and convenient;
when the balance weight alloy is used, the flat key is placed into a flat key groove 8 of a driving shaft 4, then a driving eccentric gear 1 provided with a balance weight alloy 6 is placed, bearings 3 are mounted at two ends of the driving eccentric gear 1, a motor is mounted on the side of a spline groove 5 of the driving shaft 4, the motor drives a driving eccentric assembly to rotate, and further drives a driven eccentric assembly to rotate, when the eccentric assemblies rotate, the balance weight alloy 6 on the driving eccentric gear 1 and the driven eccentric gear 2 can generate centrifugal force, horizontal component forces of the two balance weight alloys 6 are mutually offset, resultant force is formed in the vertical direction, when the balance weight alloy 6 is located above the horizontal direction, the vertical resultant force is upward, and when the balance weight alloy 6 reaches the highest point, the upward resultant force is maximum; when the counterweight alloy 6 is positioned below the horizontal direction, the vertical resultant force is downward, and when the counterweight alloy 6 reaches the lowest point, the downward resultant force is maximum, so that periodic upward and downward resultant forces are formed, and the vibration hammer continuously vibrates up and down under the action of the resultant force of the eccentric assembly, so that the piling effect is realized.
The utility model discloses an adopt initiative eccentric gear 1 and driven eccentric gear 2 engaged mode mutually, need not additionally be equipped with the eccentric block, can not have the risk that long-time operation back bolt takes place fatigue fracture and drops.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (3)
1. An eccentric assembly for a vibratory hammer, comprising: the device comprises a driving eccentric component and a driven eccentric component, wherein the driving eccentric component is meshed with the driven eccentric component;
the driving eccentric assembly comprises a driving shaft (4), the two ends of the driving shaft (4) are small, the middle of the driving shaft is large, a flat key groove (8) is formed in the circumferential surface of the middle of the driving shaft, a through hole structure is formed in the shaft of the driving shaft (4), a spline groove (5) is formed in one end hole of the driving shaft (4), a driving eccentric gear (1) is sleeved on the driving shaft (4), bearings (3) are respectively sleeved on the front and the rear of the driving eccentric gear (1), and a flat key buckled with the flat key groove (8) is arranged in the driving eccentric gear (1);
the driven eccentric component comprises a driven shaft (7), a driven eccentric gear (2) is sleeved on the driven shaft (7), and the driven eccentric gear (2) is the same as the driving eccentric gear (1) of the driving eccentric component in specification.
2. The eccentric assembly for a vibratory hammer of claim 1, wherein: and counterweight alloy (6) is arranged on the driving eccentric gear (1) and the driven eccentric gear (2).
3. The eccentric assembly for a vibratory hammer of claim 2, wherein: and the counterweight alloy (6) is in interference fit with the driving eccentric gear (1) and the driven eccentric gear (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220556.XU CN210066749U (en) | 2019-02-21 | 2019-02-21 | Eccentric assembly for vibration hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220556.XU CN210066749U (en) | 2019-02-21 | 2019-02-21 | Eccentric assembly for vibration hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210066749U true CN210066749U (en) | 2020-02-14 |
Family
ID=69432701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920220556.XU Active CN210066749U (en) | 2019-02-21 | 2019-02-21 | Eccentric assembly for vibration hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210066749U (en) |
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2019
- 2019-02-21 CN CN201920220556.XU patent/CN210066749U/en active Active
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