CN212928481U - Plunger connecting rod structure - Google Patents
Plunger connecting rod structure Download PDFInfo
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- CN212928481U CN212928481U CN202021421651.5U CN202021421651U CN212928481U CN 212928481 U CN212928481 U CN 212928481U CN 202021421651 U CN202021421651 U CN 202021421651U CN 212928481 U CN212928481 U CN 212928481U
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- connecting rod
- plunger
- oil
- ball seat
- ball
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Abstract
The utility model relates to a piston pump technical field discloses a plunger connecting rod structure, include: the connecting rod comprises a connecting rod body and a ball head arranged at one end of the connecting rod body; the plunger comprises a plunger body and a ball seat which is arranged at one end of the plunger body and is matched with the ball head; the first oil hole is formed in the connecting rod body; the oil passage is communicated with the first oil hole, penetrates through the first oil hole and extends to the outer surface of the ball head, and the lubricating medium entering from the first oil hole can enter the contact surface of the ball head and the ball seat along the oil passage to lubricate the contact surface; the oil storage cavity is arranged on the ball seat and is formed by downwards sinking of the friction surface of the ball seat. Through the technical scheme, the lubricating medium is introduced into the first oil hole, and the lubricating medium can enter the contact surface (friction surface) of the ball head and the ball seat along with the oil passage so as to lubricate the contact surface (friction surface). Therefore, the friction force between the ball head and the ball seat can be reduced, the ball head and the ball seat are reduced, and the service life of the plunger connecting rod structure is prolonged.
Description
Technical Field
The utility model relates to a piston pump technical field specifically relates to a plunger connecting rod structure.
Background
The punch press is a stamping type press. In national production, compared with the traditional machining, the stamping process has the advantages of material and energy conservation, high efficiency, low technical requirement on operators and capability of machining products which cannot be achieved by various die applications. And thus its use is becoming more and more widespread. The stamping production is mainly directed to plates. Through the mould, can make blanking, punch a hole, shaping, deep-drawing, trimming, essence towards, the plastic, riveting and extruded article etc. wide application in each field. Such as switch sockets, cups, cupboards, dishes, computer cases, and even missile airplanes, can be produced by a punch through dies.
The plunger connecting rod structure is an important part for realizing high-precision operation of the high-speed precision punch press. During the operation of the punching machine, the plunger can reciprocate in the cylinder body. How to reduce the abrasion of the plunger connecting rod structure to prolong the service life of the piston pump and the punch press is always a practical problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can reduce the frictional force between bulb and the ball seat, can reduce the wearing and tearing between bulb and the ball seat, longer plunger connecting rod structure of life.
In order to achieve the above object, the present invention provides a plunger connecting rod structure, which comprises:
the connecting rod comprises a connecting rod body and a ball head arranged at one end of the connecting rod body;
the plunger comprises a plunger body and a ball seat which is arranged at one end of the plunger body and is matched with the ball head;
the first oil hole is formed in the connecting rod body;
an oil passage communicated with the first oil hole, penetrating through the first oil hole and extending to the outer surface of the ball head, wherein a lubricating medium entering from the first oil hole can enter a contact surface of the ball head and the ball seat along the oil passage to lubricate the contact surface;
and the oil storage cavity is arranged on the ball seat and is formed by downwards sinking the friction surface of the ball seat.
Through the technical scheme, the lubricating medium is introduced into the first oil hole, and the lubricating medium can enter the contact surface (friction surface) of the ball head and the ball seat along with the oil passage so as to lubricate the contact surface (friction surface). Therefore, the friction force between the ball head and the ball seat can be reduced, the ball head and the ball seat are reduced, and the service life of the plunger connecting rod structure is prolonged.
Further, the connecting rod further comprises:
the connecting rod big end is arranged at the other end of the connecting rod body;
the connecting rod cover is connected with the big end of the connecting rod through a bolt, and an annular structure is formed after the connecting rod cover and the big end of the connecting rod are assembled;
and the bearing bush is arranged on the inner wall of the annular structure.
Further, one end of the plunger body is provided with a cavity with a first opening, and the ball seat is located in the cavity.
Furthermore, the plunger connecting rod structure also comprises a cover body with a second opening, and the cover body is arranged at the opening of the cavity and is connected with the plunger body through a bolt; the connecting rod shaft passes through the second opening and partially extends into the cavity.
Further, the other end of the plunger body is provided with a piston.
Further, the piston is in threaded connection with the plunger body.
Further, the connecting rod big end, the ball head and the connecting rod body are integrally formed.
Further, the bearing bush is in interference fit with the annular structure;
or the like, or, alternatively,
the bearing bush is connected with the annular structural key.
Further, the bearing bush comprises a connecting rod upper bush and a connecting rod lower bush;
an oil groove and a second oil hole are formed in the friction surface of the connecting rod upper tile and/or the connecting rod lower tile, and the second oil hole is communicated with the oil groove.
Furthermore, the bearing bush is connected with the annular structure in a key mode, a key is arranged on the side wall, connected with the annular structure, of one side of the bearing bush, and a key groove matched with the key is formed in the inner wall of the annular structure.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a plunger connecting rod structure according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a schematic structural diagram of an embodiment of the punching machine of the present invention.
Description of the reference numerals
11 connecting rod body 12 ball head
13 connecting rod big end 14 connecting rod cover
15 inner ring 16 bearing bush
18 second oil hole 21 plunger body
22 ball seat 23 cavity
30 first oil hole 40 oil passage
50 piston 221 oil storage chamber
Detailed Description
The following describes the embodiments of the present invention in detail. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.
The utility model discloses a first aspect provides a plunger connecting rod structure, as shown in fig. 1 and fig. 2, plunger connecting rod structure includes:
the connecting rod comprises a connecting rod body 11 and a ball head 12 arranged at one end of the connecting rod body 11;
the plunger comprises a plunger body 21 and a ball seat 22 which is arranged at one end of the plunger body 21 and is matched with the ball head 12;
a first oil hole 30 provided in the connecting rod body 11;
and an oil passage 40 communicating with the first oil hole 30, penetrating and extending to an outer surface of the ball head 12, and a lubricating medium introduced from the first oil hole 30 can enter a contact surface (frictional surface) of the ball head 12 and the ball seat 22 along the oil passage 40 to lubricate the contact surface (frictional surface).
Preferably, the connecting rod big end 13, the ball head 12 and the connecting rod body 11 are integrally formed.
The utility model discloses a plunger connecting rod structure can use on the punch press, particularly, uses in the piston pump of punch press. Through the technical scheme, the punching machine is used or before starting. A lubricating medium is introduced into the first oil hole 30, and the lubricating medium enters the contact surface between the ball head 12 and the ball seat 22 along with the oil passage 40 to lubricate the contact surface (friction surface). Therefore, the friction force between the ball head 12 and the ball seat 22 can be reduced, the ball head 12 and the ball seat 22 are reduced, and the service life of the plunger connecting rod structure is prolonged.
The lubricating medium can be selected from lubricating oil such as engine oil, but is not preferably selected from solid lubricating medium such as butter. It is difficult to move within the oil passage 40 because the fluidity of the grease is poor.
Further, the oil passage 40 includes a first-stage oil passage and a second-stage oil passage that are in fluid communication; the second oil passage is arranged along the axis of the connecting rod body 11, the head end of the second oil passage is connected to the tail end of the first oil passage, the tail end of the second oil passage extends to the outer surface of the ball head 12, the head end of the first oil passage is connected to the first oil hole 30, and the included angle between the first oil passage and the second oil passage is smaller than 75 degrees.
One end of the plunger body 21 is provided with a cavity 23 having a first opening, and the ball seat 22 is located in the cavity 23. Further, as shown in fig. 3, an oil storage chamber 221 formed by downwardly sinking a frictional surface of the ball seat 22 is provided on the ball seat 22. Preferably, the oil reservoir chamber 221 is provided at the center of the ball seat 22, i.e., the lowest point of the inner surface of the ball seat 22. The utility model discloses a when plunger connecting rod structure uses under the state as shown in fig. 1, lubricating oil can receive gravity automatic backward flow extremely in the oil storage chamber 221. The oil reservoir chamber 221 functions to store lubricating oil, and a part of the lubricating oil flowing from the oil passage 40 to the contact surfaces (friction surfaces) is returned to the oil reservoir chamber 221, or directly enters the oil reservoir chamber 221 from the oil passage 40.
The friction surface of the ball seat 22 refers to a surface of the ball seat 22 which is in frictional contact with the ball head 12.
As shown in fig. 1, the link further includes:
a connecting rod big end 13 arranged at the other end of the connecting rod body 11;
the connecting rod cover 14 is connected with the connecting rod big end 13 through a bolt, and the connecting rod cover 14 and the connecting rod big end 13 are assembled to form an annular structure 15;
and the bearing bush 16 is arranged on the inner wall of the annular structure 15.
The bearing shell 16 and the annular structure 15 may be in an interference fit or a key connection. The key connection means that a key is arranged on the side wall of the bearing bush 16 connected with the inner wall of the annular structure 15, and a key groove matched with the key is arranged on the inner wall of the annular structure 15.
Further, the bearing bush 16 comprises a connecting rod upper bush and a connecting rod lower bush; an oil groove 17 and a second oil hole 18 are formed in the friction surface of the connecting rod upper tile and/or the connecting rod lower tile, and the second oil hole 18 is communicated with the oil groove 17. The second oil hole 18 functions to inject oil; the oil groove 17 functions to store oil. In actual use, lubricating oil, such as engine oil, can be injected into the oil groove 17 through the second oil hole 18. The engine oil can play a lubricating role and can clean particles generated by friction in time.
The "friction surface of the upper and/or lower connecting rod shoe" is an inner wall of the bearing bush 16.
In addition, the plunger connecting rod structure further comprises a cover body 80 with a second opening, wherein the cover body 40 is arranged at the opening of the cavity 23 and is connected with the plunger body 21 through a bolt; the connecting rod shaft 11 passes through the second opening and partially extends into the cavity 23.
The rod cap 14 and the cavity 23 also actually form an oil reservoir.
Further, the other end of the plunger body 21 is provided with a piston 50. The piston 50 is in threaded connection with the plunger body 21.
The utility model discloses the second aspect provides a piston pump, piston pump includes plunger connecting rod structure.
By introducing the lubricating medium into the first oil hole 30, the lubricating medium enters the contact surface (friction surface) of the ball head 12 and the ball seat 22 along with the oil passage 40 to lubricate the contact surface (friction surface). Therefore, the friction force between the ball head 12 and the ball seat 22 can be reduced, the ball head 12 and the ball seat 22 are reduced, and the service life of the plunger connecting rod structure is prolonged. The plunger connecting rod structure is applied to the piston pump, so that the service life of the piston pump can be prolonged, and the utilization rate of the piston pump can be improved.
The utility model discloses the third aspect provides a punch press, punch press piston pump, piston pump plunger rod structure.
By introducing the lubricating medium into the first oil hole 30, the lubricating medium enters the contact surface (friction surface) of the ball head 12 and the ball seat 22 along with the oil passage 40 to lubricate the contact surface (friction surface). Therefore, the friction force between the ball head 12 and the ball seat 22 can be reduced, the ball head 12 and the ball seat 22 are reduced, and the service life of the plunger connecting rod structure is prolonged. The piston pump is applied to the punching machine, so that the service life of the punching machine can be prolonged, and the utilization rate of the punching machine can be improved.
In addition, as shown in fig. 4, the punch press further includes a flywheel protecting cover 60 and a base 70.
The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention, and can be right to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (10)
1. A plunger rod structure, comprising:
the connecting rod comprises a connecting rod body (11) and a ball head (12) arranged at one end of the connecting rod body (11);
the plunger comprises a plunger body (21) and a ball seat (22) which is arranged at one end of the plunger body (21) and is matched with the ball head (12);
a first oil hole (30) provided in the connecting rod body (11);
an oil passage (40) communicating with the first oil hole (30), penetrating and extending to an outer surface of the ball head (12), a lubricating medium entering from the first oil hole (30) being able to enter a contact surface of the ball head (12) and the ball seat (22) along the oil passage (40) to lubricate the contact surface;
and an oil storage chamber (221) provided on the ball seat (22), the oil storage chamber (221) being formed by a friction surface of the ball seat (22) being depressed downward.
2. The plunger link structure of claim 1 wherein the link further comprises:
the connecting rod big end (13) is arranged at the other end of the connecting rod body (11);
the connecting rod cover (14) is connected with the connecting rod big head (13) through a bolt, and the connecting rod cover (14) and the connecting rod big head (13) are assembled to form an annular structure (15);
and the bearing bush (16) is arranged on the inner wall of the annular structure (15).
3. The plunger link structure according to claim 2, characterized in that the connecting rod big head (13), the ball head (12) and the connecting rod shaft (11) are integrally formed.
4. A plunger rod structure according to claim 1, characterized in that one end of the plunger body (21) is provided with a cavity (23) having a first opening, the ball seat (22) being located in the cavity (23).
5. The plunger connecting rod structure according to claim 4, characterized in that the plunger connecting rod structure further comprises a cover body (80) with a second opening, wherein the cover body (80) is arranged at the opening of the cavity (23) and is connected with the plunger body (21) through a bolt; the connecting rod body (11) passes through the second opening and partially extends into the cavity (23).
6. The plunger connecting rod structure according to claim 1, wherein the other end of the plunger body (21) is provided with a piston (50).
7. The plunger connecting rod structure according to claim 6, wherein the piston (50) is screw-coupled with the plunger body (21).
8. A plunger link structure according to claim 1, characterised in that the bearing shell (16) is an interference fit with the ring structure (15);
or the like, or, alternatively,
the bearing bush (16) is connected with the annular structure (15) in a key mode.
9. The plunger link structure of claim 8 wherein the bearing shell (16) comprises a link upper shell and a link lower shell;
an oil groove (17) and a second oil hole (18) are formed in a friction surface of the connecting rod upper tile and/or the connecting rod lower tile, and the second oil hole (18) is communicated with the oil groove (17).
10. The plunger connecting rod structure according to claim 8, characterized in that a key is arranged on the side wall of the bearing shell (16) connected with the annular structure (15), and a key groove matched with the key is arranged on the inner wall of the annular structure (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021421651.5U CN212928481U (en) | 2020-07-17 | 2020-07-17 | Plunger connecting rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021421651.5U CN212928481U (en) | 2020-07-17 | 2020-07-17 | Plunger connecting rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212928481U true CN212928481U (en) | 2021-04-09 |
Family
ID=75330725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021421651.5U Expired - Fee Related CN212928481U (en) | 2020-07-17 | 2020-07-17 | Plunger connecting rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212928481U (en) |
-
2020
- 2020-07-17 CN CN202021421651.5U patent/CN212928481U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220505 Address after: No. 198, CHENFENG East Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Kunshan brute Precision Machinery Co.,Ltd. Address before: Room 103, building 4, No.1, donggangjiu Road, Kecheng District, Quzhou City, Zhejiang Province 324000 Patentee before: Quzhou demico Precision Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |