CN212240889U - Connecting structure of air cylinder swing arm on electric hammer - Google Patents
Connecting structure of air cylinder swing arm on electric hammer Download PDFInfo
- Publication number
- CN212240889U CN212240889U CN202020954726.XU CN202020954726U CN212240889U CN 212240889 U CN212240889 U CN 212240889U CN 202020954726 U CN202020954726 U CN 202020954726U CN 212240889 U CN212240889 U CN 212240889U
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- swing arm
- cylinder
- drill bushing
- rod
- electric hammer
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Abstract
The utility model discloses a connecting structure of cylinder swing arm on electric hammer, which comprises a head shell, a bracket arranged in the head shell, a cylinder respectively arranged at the front end and the lower side of the bracket, and a swing arm transmission mechanism, wherein the cylinder is provided with a pin hole, the pin hole is connected with a cylinder pin, a swing arm ball rod is arranged on the swing arm transmission mechanism, and the swing arm ball rod is connected with the cylinder pin; a rod hole is formed in the cylinder pin, the rod hole comprises a positioning sliding part and flared parts arranged at two end parts of the positioning sliding part, the swing arm ball rod comprises a ball head part and a rod part, and the rod part is connected in the rod hole in a penetrating mode in a matching mode and only keeps in contact with and positioned by the positioning sliding part of the rod hole; the drill bush positioning groove is formed in the support, the drill bush is sleeved outside the air cylinder, the end portion of the drill bush is installed in the drill bush positioning groove, and a buffering gap is formed between the end portion of the drill bush and the bottom of the drill bush positioning groove. The utility model discloses reduce the linkage friction between cylinder and the swing arm mechanism, not only improve the driven effect of swing hookup, but also can effectively improve the life of linkage part.
Description
Technical Field
The utility model relates to an electric hammer technical field, concretely relates to connection structure of cylinder swing arm on electric hammer.
Background
The electric hammer is a common tool in daily life, the motion of a hammer rod in the electric hammer needs a cylinder and a swing arm mechanism to connect and drive a power mechanism in the electric hammer, a cylinder pin and the swing arm rod are mainly linked between the cylinder and the swing arm mechanism, and the swing arm mechanism enables the swing arm rod to change angles and convert the angle change into the axial motion of the cylinder through the cylinder pin; the existing electric hammer has more friction due to the structural design, so that the connection transmission between the cylinder and the swing arm mechanism has more friction, on one hand, the effect of the connection transmission is influenced by more friction, and then the using effect is influenced, on the other hand, the service life of the connection component is reduced due to the friction, so that the new component needs to be replaced, and the using cost is increased.
Disclosure of Invention
The utility model aims at solving the problem that proposes among the above-mentioned background art, provide a connection structure of cylinder swing arm on electric hammer.
In order to achieve the above purpose, the technical scheme of the utility model is that: a connecting structure of an air cylinder swing arm on an electric hammer comprises a head shell, a support arranged in the head shell, an air cylinder and a swing arm transmission mechanism, wherein the air cylinder and the swing arm transmission mechanism are respectively arranged at the front end and the lower side of the support; the swing arm ball rod comprises a ball head part and a rod part, and the rod part is connected in the rod hole in a penetrating mode in a matching mode and only keeps in contact with and is positioned with the positioning sliding part of the rod hole; the drill bushing positioning groove is formed in the support, the drill bushing is sleeved outside the air cylinder, the end portion of the drill bushing is installed in the drill bushing positioning groove, and a buffering gap is formed between the end portion of the drill bushing and the bottom of the drill bushing positioning groove.
And a transition surface is arranged at the joint of the rod hole positioning sliding part and the flaring part.
And a bushing groove is formed in the drill bushing positioning groove, a drill bushing is arranged in the bushing groove, and the drill bushing is matched and positioned in the drill bushing.
And the end part of the drill bushing and the bottom of the drill bushing positioning groove are respectively provided with a corresponding matched annular top contact conical surface.
The cylinder pin gasket is sleeved on the two end parts of the cylinder pin, and the side surface of the cylinder pin gasket is attached to the cylinder.
Adopt above technical scheme, the utility model discloses following beneficial effect has:
compared with the prior art, the utility model divides the rod hole on the cylinder pin into the positioning sliding part and the flaring parts at the two ends of the positioning sliding part, the rod part of the swing arm ball rod only keeps contact positioning with the positioning sliding part, and the contact area of the rod part is reduced, so that the swing arm ball rod swings angularly, the area of the rod part in sliding contact in the rod hole is smaller, and the friction is reduced; not only improves the effect of swing connection transmission, but also can effectively prolong the service life of linkage parts such as a cylinder pin, a swing arm ball rod and the like.
Compared with the prior art, the utility model discloses be provided with the drill bushing constant head tank on the support, the drill bushing tip has the buffering clearance with drill bushing constant head tank bottom, and the cylinder is the axis motion in the drill bushing, and the buffering clearance can be given drill bushing axial displacement's space, can produce axial displacement along with the cylinder, avoids producing great relative frictional force between drill bushing and the cylinder to reduce the force that the swing arm club passes through cylinder round pin drive cylinder and removes, and then reduce the frictional force between swing arm club and the cylinder round pin pole hole.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
fig. 2 is a perspective view of the cylinder pin of the present invention;
fig. 3 is a sectional view of the cylinder pin according to the present invention.
Detailed Description
The invention is further explained by combining the attached drawings.
Referring to fig. 1 to 3, the utility model provides a connection structure of an air cylinder swing arm on an electric hammer, which comprises a head shell 1, a support 2 arranged in the head shell 1, an air cylinder 3 and a swing arm transmission mechanism 4 respectively arranged at the front end and the lower side of the support 2, wherein the air cylinder 3 is provided with a pin hole 5, the pin hole 5 is connected with an air cylinder pin 6, the swing arm transmission mechanism 4 is provided with a swing arm ball rod 7, and the swing arm ball rod 7 is connected with the air cylinder pin 6; the swing arm ball rod 7 comprises a ball head part 11 and a rod part 12, the rod part 12 is connected in the rod hole 8 in a penetrating mode in a matching mode and only keeps in contact with and positioned at the positioning sliding part 9 of the rod hole 8, so that friction in the sliding process of the rod part is effectively reduced, meanwhile, a transition surface 13 is arranged at the connecting position of the rod hole positioning sliding part 9 and the flared part 10, and the rod part 12 of the swing arm ball rod 7 can better position and slide in the rod hole 8 in the swinging process of the swing arm ball rod 7 while friction is reduced; the drill bushing positioning groove 14 is formed in the support 2, the drill bushing 15 is sleeved outside the air cylinder 3, the end portion of the drill bushing 15 is installed in the drill bushing positioning groove 14, and a buffer gap 16 is formed between the end portion and the bottom of the drill bushing positioning groove 14.
A bushing groove 17 is formed in the drill bushing positioning groove 14, a drill bushing 18 is arranged in the bushing groove 17, and the drill bushing 15 is matched and positioned in the drill bushing 18; the drill bushing 18 allows for better positioning and installation of the drill bushing 15.
The end part of the drill bushing 15 and the bottom of the drill bushing positioning groove 14 are respectively provided with an annular top contact conical surface 19 which is correspondingly matched, when the drill bushing 15 moves along with the axial direction of the cylinder 3, once the generated moving distance is large, the end part of the drill bushing 15 and the annular top contact conical surface 19 on the drill bushing positioning groove 14 can avoid direct top contact of the end surface of the drill bushing 15 and the end surface of the drill bushing, and the end part of the drill bushing 15 can have rigid buffer deformation towards the center by matching of the annular top contact conical surface 19 when impact is generated, so that impact damage is effectively avoided.
The cylinder pin gaskets 20 are sleeved on the two end parts of the cylinder pin 6, the side surfaces of the cylinder pin gaskets 20 are attached to the cylinder 3, and the firmness of connection between the cylinder pin 6 and the cylinder 3 is better guaranteed.
The above detailed description is made on the connection structure of the swing arm of the cylinder on the electric hammer provided by the embodiment of the present invention, and the specific examples are applied herein to explain the principle and the implementation manner of the present invention, and the description of the above embodiments is only used to help understanding the technical solution disclosed by the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (5)
1. The utility model provides a connection structure of cylinder swing arm on electric hammer, includes the head casing, locates the support in the head casing, locates support front end and downside cylinder, swing arm drive mechanism, its characterized in that respectively: the swing arm transmission mechanism is provided with a swing arm ball rod, and the swing arm ball rod is connected with the cylinder pin; the swing arm ball rod comprises a ball head part and a rod part, and the rod part is connected in the rod hole in a penetrating mode in a matching mode and only keeps in contact with and is positioned with the positioning sliding part of the rod hole; the drill bushing positioning groove is formed in the support, the drill bushing is sleeved outside the air cylinder, the end portion of the drill bushing is installed in the drill bushing positioning groove, and a buffering gap is formed between the end portion of the drill bushing and the bottom of the drill bushing positioning groove.
2. The connecting structure of the swing arm of the air cylinder on the electric hammer according to claim 1, characterized in that: and a transition surface is arranged at the joint of the rod hole positioning sliding part and the flaring part.
3. The connecting structure of the swing arm of the air cylinder on the electric hammer according to claim 1, characterized in that: and a bushing groove is formed in the drill bushing positioning groove, a drill bushing is arranged in the bushing groove, and the drill bushing is matched and positioned in the drill bushing.
4. The connecting structure of the swing arm of the air cylinder on the electric hammer as claimed in claim 3, wherein: and the end part of the drill bushing and the bottom of the drill bushing positioning groove are respectively provided with a corresponding matched annular top contact conical surface.
5. The connecting structure of the swing arm of the air cylinder on the electric hammer according to claim 1, characterized in that: the cylinder pin gasket is sleeved on the two end parts of the cylinder pin, and the side surface of the cylinder pin gasket is attached to the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020954726.XU CN212240889U (en) | 2020-05-30 | 2020-05-30 | Connecting structure of air cylinder swing arm on electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020954726.XU CN212240889U (en) | 2020-05-30 | 2020-05-30 | Connecting structure of air cylinder swing arm on electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212240889U true CN212240889U (en) | 2020-12-29 |
Family
ID=73977927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020954726.XU Active CN212240889U (en) | 2020-05-30 | 2020-05-30 | Connecting structure of air cylinder swing arm on electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212240889U (en) |
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2020
- 2020-05-30 CN CN202020954726.XU patent/CN212240889U/en active Active
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