CN218093864U - Crankshaft connecting rod structure - Google Patents
Crankshaft connecting rod structure Download PDFInfo
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- CN218093864U CN218093864U CN202222192958.8U CN202222192958U CN218093864U CN 218093864 U CN218093864 U CN 218093864U CN 202222192958 U CN202222192958 U CN 202222192958U CN 218093864 U CN218093864 U CN 218093864U
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- connecting rod
- bolt
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- microcephaly
- rod bolt
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Abstract
The utility model discloses a crankshaft connecting rod structure, including connecting rod major part and connecting rod microcephaly, the connecting rod bolt hole that runs through connecting rod major part and connecting rod microcephaly is seted up respectively to the relative lateral wall of connecting rod major part and connecting rod microcephaly, and the positioning ring groove that is linked together with the connecting rod bolt hole is seted up to the relative lateral wall of connecting rod major part and connecting rod microcephaly, lies in the positioning ring inslot between connecting rod major part and the connecting rod microcephaly and is equipped with the position sleeve, and the inner chamber of connecting rod major part and connecting rod microcephaly is equipped with the connecting rod bolt subassembly that runs through connecting rod bolt hole and connecting hole. Compared with the traditional structure, the connecting rod bolt only provides pre-tightening force for the large end of the connecting rod and the small end of the connecting rod, the assembling position of the large end of the connecting rod and the small end of the connecting rod is not positioned any more, the contact area between the large end of the connecting rod and the small end of the connecting rod is reduced, the large end of the connecting rod and the small end of the connecting rod are convenient to disassemble, abrasion between the connecting rod bolt and the large end of the connecting rod and between the connecting rod bolt and the small end of the connecting rod can be reduced, and the service lives of the connecting rod bolt, the large end of the connecting rod and the small end of the connecting rod are prolonged.
Description
Technical Field
The utility model relates to a crankshaft connecting rod technical field, concretely relates to crankshaft connecting rod structure.
Background
When the crankshaft in the compressor works, a connecting rod fixed with the crankshaft needs to be assembled, the connecting rod is generally divided into two parts, and the two parts of the connecting rod are organized to complete the connection with the crankshaft.
As shown in fig. 6, in the prior art, the two-part body of rod is connected fixedly through the positioning bolt connected between, fully contact between the inner chamber of positioning bolt and the body of rod, guarantee to have higher compactness between positioning bolt and the body of rod, thereby guarantee to the location stability of the body of rod, fix a position the pretightning force that also provides the two-part body of rod to the two-part body of rod promptly through positioning bolt, but because fully contact between positioning bolt and the body of rod, lead to carrying out the in-process of maintaining after long-time use, it is comparatively difficult to the dismantlement of positioning bolt, be not convenient for separate the two-part body of rod, the process of dismantlement is troublesome, and also can cause wearing and tearing between positioning bolt and the body of rod at the in-process of dismantling, reduce positioning bolt's life. To this end, we propose a crankshaft connecting rod structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a crankshaft connecting rod structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a crankshaft connecting rod structure, includes connecting rod major part and connecting rod microcephaly, the connecting rod bolt hole that runs through connecting rod major part and connecting rod microcephaly is seted up respectively to the relative lateral wall of connecting rod major part and connecting rod microcephaly, the positioning ring groove that is linked together with the connecting rod bolt hole is seted up to the relative lateral wall of connecting rod major part and connecting rod microcephaly, it is equipped with the position sleeve to lie in the positioning ring inslot between connecting rod major part and the connecting rod microcephaly, the center department of position sleeve sets up the connecting hole that runs through the position sleeve, the inner chamber of connecting rod major part and connecting rod microcephaly is equipped with the connecting rod bolt subassembly that runs through connecting rod bolt hole and connecting hole.
Preferably, the side walls of the two ends of the positioning sleeve are provided with inclined chamfer edges, and the inclination angle of the chamfer edges of the two ends of the positioning sleeve is 15 degrees.
Preferably, the diameter of the positioning ring groove is larger than that of the connecting rod bolt hole, and the diameter of the connecting rod bolt hole is smaller than that of the connecting hole.
Preferably, the connecting rod bolt assembly comprises a connecting rod bolt, the connecting rod bolt penetrates through the connecting hole, one end of the connecting rod bolt is fixedly connected with the fixing block, the other end of the connecting rod bolt is provided with a connecting thread, and the connecting rod bolt is connected with a connecting nut through the connecting thread in a threaded manner.
Preferably, the side wall of the connecting rod bolt is provided with a screw hole, the side wall of the connecting nut is provided with a screw clamping groove corresponding to the screw hole, and a fixing screw clamped with the screw clamping groove is screwed in the screw hole.
Compared with the prior art, the beneficial effects of the utility model are that: a crankshaft connecting rod structure is characterized in that a positioning sleeve is arranged between a connecting rod big end and a connecting rod small end, the connecting rod big end and the connecting rod small end are positioned through the positioning sleeve, the accuracy of a connecting position between the connecting rod big end and the connecting rod small end is guaranteed, a connecting rod bolt assembly penetrating through the positioning sleeve is arranged between the connecting rod big end and the connecting rod small end, when the connecting rod big end and the connecting rod small end are connected and fixed, fixing blocks at two ends of a connecting rod bolt are matched with a connecting nut to clamp and fix the connecting rod big end and the connecting rod small end, compared with the traditional structure, the connecting rod bolt only provides pre-tightening force for the connecting rod big end and the connecting rod small end, the assembling position of the connecting rod big end and the connecting rod small end is not positioned, the contact area between the connecting rod big end and the connecting rod small end is reduced, the connecting rod bolt is convenient to separate from the connecting rod big end and the connecting rod small end in the subsequent dismounting and maintenance process, the connecting rod big end and the connecting rod small end can be conveniently dismounted, and the connecting rod small end can be reduced in abrasion between the connecting rod bolt and the connecting rod small end can be prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the assembled electric vehicle.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a detailed view of fig. 1 at a.
Fig. 4 is a top partial sectional view of the present invention.
Fig. 5 is a detailed view of fig. 4 at b.
Fig. 6 is a schematic structural view illustrating a rod body fixing in the prior art.
In the figure: 1. a connecting rod big end 2, a connecting rod small end 3, a connecting rod big end hole 4, a positioning ring groove 5, a positioning sleeve 6, a connecting hole 7, a connecting rod bolt hole 8 and a connecting rod bolt component, 81, connecting rod bolts, 82, fixing blocks, 83, connecting threads, 84, connecting nuts, 9, screw holes, 10, fixing screws, 11 and screw clamping grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a technical solution: a crankshaft connecting rod structure comprises a connecting rod big end 1 and a connecting rod small end 2, wherein connecting rod big end holes 3 are formed in opposite side walls of the connecting rod big end 1 and the connecting rod small end 2, and after the connecting rod big end 1 and the connecting rod small end 2 are assembled in a combined mode, assembling holes used for being connected with a crankshaft can be formed in the two connecting rod big end holes 3;
positioning ring grooves 4 are formed in opposite side walls of a connecting rod big end 1 and a connecting rod small end 2, the positioning ring grooves 4 are distributed in the number of the side walls of the connecting rod big end 1 and the connecting rod small end 2 for each side wall, the positioning ring grooves 4 in the side walls of the connecting rod big end 1 and the connecting rod small end 2 are distributed in an axisymmetric mode at the center of a connecting rod big end hole 3, the positions of the positioning ring grooves 4 in the side walls of the connecting rod big end 1 and the connecting rod small end 2 correspond to the positions of the positioning ring grooves 4 in the side walls of the connecting rod small end 2, the connecting rod big end 1 and the connecting rod small end 2 are connected in a pre-fixed mode by inserting positioning sleeves 5 into the corresponding positioning ring grooves 4, the accurate assembly positions of the connecting rod big end 1 and the connecting rod small end 2 are guaranteed, the positioning sleeves 5 and the positioning ring grooves 4 are connected in an interference fit mode, and the connecting rods big end 1 and the connecting rod small end 2 are guaranteed to be connected stably after the positioning sleeves 5 are inserted into the positioning ring grooves 4;
as shown in fig. 5, the end parts of the two sides of the positioning sleeve 5, which are respectively connected with the positioning ring groove 4, are provided with inclined chamfers, the angle of each inclined chamfer is 15 degrees, and the positioning sleeve 5 is convenient to insert into the positioning ring groove 4 by the arrangement of the inclined chamfers;
a connecting hole 6 is formed in the center of the positioning sleeve 5, connecting rod bolt holes 7 communicated with the positioning ring groove 4 are formed in the inner cavities of the connecting rod large head 1 and the connecting rod small head 2 respectively, the diameter of each connecting rod bolt hole 7 is smaller than that of the positioning ring groove 4 and larger than that of each connecting hole 6, and the connecting rod large head 1 and the connecting rod small head 2 are fixed again by assembling a connecting rod bolt assembly 8 penetrating through the connecting rod bolt holes 7 and the connecting holes 6 in the connecting rod bolt holes 7 and the connecting holes 6, so that the connecting rod large head 1 and the connecting rod small head 2 are fixed stably;
the connecting rod bolt assembly 8 comprises a connecting rod bolt 81 penetrating through a connecting rod bolt hole 7 and a connecting hole 6, a fixing block 82 is integrally formed at one end of the connecting rod bolt 81, a connecting thread 83 is formed in the side wall of the other end of the connecting rod bolt 81, one end of the fixing block 82 is fixed with the side wall of a connecting rod small head 2 after the connecting rod bolt 81 penetrates through the connecting rod bolt hole 7 and the connecting hole 6, a connecting nut 84 is screwed through the connecting thread 83 to fix the side wall of a connecting rod large head 1, the connecting rod bolt 81 and the connecting hole 6 are in clearance fit, in the traditional structure, the connecting rod bolt 81 is responsible for positioning the connecting rod large head 1 and the connecting rod small head 2 after penetrating through the connecting rod bolt hole 7 and also provides pre-tightening force for the connecting rod large head 1 and the connecting rod small head 2, in the product, the connecting rod bolt 81 only provides pre-tightening force for connecting the large head 1 and the connecting rod small head 2, the large-area contact between the bolt 81 and the connecting rod bolt hole 7 is avoided, the contact area between the bolt 81 and the connecting rod bolt hole 7 is convenient to detach the connecting rod bolt 1 and the connecting rod small head 2 in the maintenance process, and the connecting rod bolt 81 is not required to be detached, and the connecting rod bolt is not required to be separated, and the connecting rod bolt 81 is reduced;
as shown in fig. 3 and 5, the side wall of the connecting rod bolt 81 is provided with screw holes 9 which are axially symmetrically distributed at the center of the connecting rod bolt 81, fixing screws 10 are screwed in the screw holes 9, the side wall of the connecting nut 84 is provided with screw clamping grooves 11 corresponding to the positions of the fixing screws 10, when the connecting nut 84 is connected with the connecting rod bolt 81, the connecting rod large head 1 and the connecting rod small head 2 are fully fixed and then are clamped with the screw clamping grooves 11 through the fixing screws 10, the connecting nut 84 is limited, the connecting nut 84 is prevented from rotating in the fixing process, and the stability of the connecting nut 81 in the fixing process of the connecting rod large head 1 and the connecting rod small head 2 is improved.
The working principle is as follows: when the connecting rod large end 1, the connecting rod small end 2 and the crankshaft are required to be connected, one side of a positioning sleeve 5 is inserted into a positioning ring groove 4 in the side wall of the connecting rod small end 2, the other side of the positioning sleeve 4 is inserted into the positioning ring groove 4 in the side wall of the connecting rod large end 1, the connecting rod large end 1 and the connecting rod small end 2 are pre-fixedly connected, the accuracy of the connecting position of the connecting rod large end 1 and the connecting rod small end 2 is guaranteed, the crankshaft is located in an assembling hole formed in a connecting rod large end hole 3 and is connected with the connecting rod large end 1 and the connecting rod small end 2 in a clamping mode, after the connecting rod large end 1 and the connecting rod small end 2 are preliminarily connected and fixed, a connecting rod bolt 81 is inserted into a connecting hole 6 in the positioning sleeve 5, then the connecting rod large end 1 and the connecting rod small end 2 are clamped and fixed through fixing blocks 82 and connecting nuts 84 at two ends respectively, the stability between the connecting rod large end 1 and the connecting rod small end 2 is enhanced, the connecting rod large end 1 and the connecting rod small end 2 is connected with the positioning sleeve 5 in a clamping mode, the connecting rod 1 and the connecting rod small end 2, the connecting rod bolt hole 7 in the connecting rod is connected with a connecting rod bolt hole 9, and the connecting bolt hole, and the connecting rod bolt 81 can be conveniently detached in a connecting rod bolt hole 10, and a connecting rod bolt hole in a connecting rod fixing process, and a connecting rod bolt hole 10, and a connecting bolt hole in a connecting rod fixing process, and a connecting rod fixing process of the connecting rod is conveniently detached process, and a connecting rod fixing bolt hole 10, and a connecting rod bolt hole.
Claims (5)
1. The utility model provides a crankshaft connecting rod structure, includes connecting rod stub (1) and connecting rod microcephaly (2), its characterized in that: the utility model discloses a connecting rod bolt assembly, including connecting rod big end (1), connecting rod bolt hole (7) that run through connecting rod big end (1) and connecting rod microcephaly (2) are seted up respectively to the relative lateral wall of connecting rod big end (1) and connecting rod microcephaly (2), the locating ring groove (4) that are linked together with connecting rod bolt hole (7) are seted up to the relative lateral wall of connecting rod big end (1) and connecting rod microcephaly (2), it is equipped with position sleeve (5) to lie in position ring groove (4) between connecting rod big end (1) and connecting rod microcephaly (2), connecting hole (6) that run through position sleeve (5) are seted up in the center department of position sleeve (5), the inner chamber of connecting rod big end (1) and connecting rod microcephaly (2) is equipped with connecting rod bolt subassembly (8) that run through connecting rod bolt hole (7) and connecting hole (6).
2. A crankshaft connecting rod structure according to claim 1, characterized in that: the side walls of the two ends of the positioning sleeve (5) are provided with inclined chamfer edges, and the inclination angle of the chamfer edges of the two ends of the positioning sleeve (5) is 15 degrees.
3. A crankshaft connecting rod structure according to claim 1, characterized in that: the diameter of positioning ring groove (4) is greater than the diameter of connecting rod bolt hole (7), the diameter of connecting rod bolt hole (7) is less than the diameter of connecting hole (6).
4. A crankshaft connecting rod structure according to claim 1, characterized in that: connecting rod bolt subassembly (8) include connecting rod bolt (81), connecting rod bolt (81) through connection hole (6), the one end fixedly connected with fixed block (82) of connecting rod bolt (81), connecting thread (83) have been seted up to the other end of connecting rod bolt (81), connecting rod bolt (81) have coupling nut (84) through connecting thread (83) spiro union.
5. A crankshaft connecting rod structure according to claim 4, characterized in that: the side wall of the connecting rod bolt (81) is provided with a screw hole (9), the side wall of the connecting nut (84) is provided with a screw clamping groove (11) corresponding to the position of the screw hole (9), and a fixing screw (10) clamped with the screw clamping groove (11) is screwed in the screw hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222192958.8U CN218093864U (en) | 2022-08-19 | 2022-08-19 | Crankshaft connecting rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222192958.8U CN218093864U (en) | 2022-08-19 | 2022-08-19 | Crankshaft connecting rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218093864U true CN218093864U (en) | 2022-12-20 |
Family
ID=84446823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222192958.8U Active CN218093864U (en) | 2022-08-19 | 2022-08-19 | Crankshaft connecting rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218093864U (en) |
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2022
- 2022-08-19 CN CN202222192958.8U patent/CN218093864U/en active Active
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