CN216922829U

CN216922829U - Connecting rod structure with good stability

Info

Publication number: CN216922829U
Application number: CN202220574438.0U
Authority: CN
Inventors: 龚建峰; 柳玉春; 谢祥
Original assignee: Yangzhou Xinheyuan Machinery Co ltd
Current assignee: Yangzhou Xinheyuan Machinery Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-07-08
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a connecting rod structure with good stability, which comprises a connecting rod, wherein one end of the connecting rod is provided with a connecting rod shaft cover, the top and the bottom of the surface of the connecting rod are provided with first connecting blocks which are integrally formed at positions close to one end, the top and the bottom of the connecting rod shaft cover are provided with second connecting blocks, the two second connecting blocks and the two first connecting blocks are respectively provided with a positioning block and a positioning hole which are inserted, a through hole is formed between one end of the connecting rod and the connecting rod shaft cover, a connecting rod bearing bush is arranged in the through hole, and a clamping component is arranged at a position close to the through hole, which is opposite to the connecting rod shaft cover, at one end of the connecting rod. According to the utility model, when the second connecting block on the connecting rod shaft cover corresponds to the first connecting block on the connecting rod, the positioning block is inserted into the positioning hole, the two connecting blocks are connected through the clamping component, and finally the two connecting blocks are connected through the bolt piece, so that the connecting effect between the connecting rod shaft cover and the connecting rod is better, and the connecting stability between the connecting rod shaft cover and the connecting rod is improved.

Description

Connecting rod structure with good stability

Technical Field

The utility model relates to the technical field of connecting rods, in particular to a connecting rod structure with good stability.

Background

The connecting rod is one of the main transmission mechanisms of automobile engine, and connects the piston and crankshaft to transmit the expanding gas pressure acting on the top of piston to crankshaft, so that the reciprocating linear motion of piston can be reversibly converted into the rotary motion of crankshaft to output power. The connecting rod comprises a connecting rod body, a connecting rod cover, a connecting rod bolt, a connecting rod bearing bush and other parts, wherein the connecting rod body and the connecting rod cover are divided into a connecting rod small end, a rod body and a connecting rod big end. The small end of the connecting rod is used for installing a piston pin to connect the piston. Shafts are typically made with "i" or "H" shaped sections to reduce mass while meeting strength and stiffness requirements. The big end of the connecting rod is connected with a connecting rod journal of the crankshaft. The connecting rod is generally made into a split type, a half cut from the rod body is called a connecting rod cover, and the connecting rod cover and the connecting rod body are connected into a whole through a connecting rod bolt. The connecting rod bearing bush is arranged in a connecting rod big end hole seat and is assembled with a connecting rod journal on a crankshaft together, and is one of the most important matching pairs in the engine.

When the existing connecting rod is used, the connecting rod cover and the connecting rod body are only connected through bolts, and the connectivity between the connecting rod cover and the connecting rod body needs to be improved. Therefore, we propose a link structure with good stability to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a connecting rod structure with good stability.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a connecting rod structure that stability is good, includes the connecting rod, the one end of connecting rod is equipped with the connecting rod shaft cap, the top on connecting rod surface and the position that the bottom is close to one end are the first connecting block of type all an organic whole, connecting rod shaft cap top and bottom all integrated into one piece have the second connecting block, two the second connecting block is equipped with respectively with two first connecting blocks and inserts the locating piece and the locating hole of establishing mutually, for the through-hole that runs through between the one end of connecting rod and the connecting rod shaft cap, and the inside connecting rod axle bush that is equipped with of through-hole, the one end of connecting rod and the position that the connecting rod shaft cap opposite face is close to the through-hole are equipped with the joint subassembly.

Preferably, the first connecting block and the second connecting block are composed of a main body part and two integrally formed edge parts on two sides of the main body part, connecting holes are formed in the surfaces of the main body part and the edge parts in a penetrating mode, bolt pieces are arranged in the connecting holes, and the connecting holes in the main body part of the first connecting block and the connecting holes in the main body part of the second connecting block respectively penetrate through the positioning holes and the positioning blocks.

Preferably, the bolt piece comprises connecting rod bolt and connecting rod nut of mutual threaded connection, the connecting rod bolt inserts in the connecting hole in the second connecting block via the connecting hole in the first connecting block, the connecting rod bolt is hexagon socket head cap screw, and has the one end of hexagon socket head cap notch in the connecting rod bolt and imbed in first connecting block surface with the rotation mode, the connecting rod nut is hexagon nut, and connecting rod nut imbeds in second connecting block surface with the joint mode.

Preferably, the outer ring of the connecting rod bearing bush is provided with two annular positioning rings, and the inner wall of the through hole is provided with two positioning grooves matched with the positioning rings in a sliding manner.

Preferably, the joint subassembly includes first draw-in groove, first fixture block, second draw-in groove and second fixture block, two first draw-in groove is seted up and is being close to the position of through-hole in the one end of connecting rod, two first fixture block sets up and is located two first draw-in groove outsides in the one end of connecting rod, the second fixture block sets up and is close to the position of through-hole at connecting rod axle head and connecting rod opposite face, the second draw-in groove is seted up and is located second fixture block outside position at connecting rod axle head and connecting rod opposite face.

Preferably, the first clamping block corresponds to and is matched and clamped with the second clamping groove, the second clamping block corresponds to and is matched and clamped with the first clamping groove, and the first clamping block and the second clamping groove as well as the second clamping block and the first clamping groove are vertically symmetrical by taking the middle position of the through hole as a symmetrical point.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the locating hole that sets up, locating piece and joint subassembly, in order to reach the effect that has the stability of being connected between improvement connecting rod shaft cover and the connecting rod, when corresponding second connecting block on the connecting rod shaft cover with first connecting block on the connecting rod, and insert the locating piece in the locating hole, then the rethread joint subassembly is connected two connecting blocks, connect two connecting blocks through the bolt spare at last, thereby make the connection effect between connecting rod shaft cover and the connecting rod better.

2. Based on beneficial effect 1, the locating piece is pegged graft with the locating hole and is convenient for two connecting blocks and correspond and be connected, the joint subassembly joint of also being convenient for, the joint subassembly is convenient for carry out joint once more with two connecting blocks and connects, prevents that two connecting blocks from connecting the emergence skew when improving the connection effect.

Drawings

FIG. 1 is a front axial view of a stable linkage structure according to the present invention;

FIG. 2 is a rear axial view of a high stability linkage arrangement according to the present invention;

FIG. 3 is an exploded view of FIG. 1;

fig. 4 is an exploded view of fig. 2.

In the figure: 1. a connecting rod; 2. a first connection block; 3. positioning holes; 4. connecting holes; 5. a first card slot; 6. a first clamping block; 7. positioning a groove; 8. a connecting rod shaft cover; 9. a second connecting block; 10. a connecting rod bearing shell; 11. a positioning ring; 12. positioning blocks; 13. a second card slot; 14. a second fixture block; 15. a connecting rod bolt; 16. and a connecting rod nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a connecting rod structure with good stability includes a connecting rod 1, a connecting rod shaft cover 8 is provided at one end of the connecting rod 1, a first connecting block 2 is integrally formed at a top and a bottom of a surface of the connecting rod 1 near one end, a second connecting block 9 is integrally formed at the top and the bottom of the connecting rod shaft cover 8, the first connecting block 2 and the second connecting block 9 are composed of a main body portion and two side portions integrally formed at both sides of the main body portion, connecting holes 4 are formed through surfaces of the main body portion and the side portions, bolt pieces are provided in the connecting holes 4, the bolt pieces are composed of connecting rod bolts 15 and connecting rod nuts 16 which are in threaded connection with each other, the connecting rod bolts 15 are inserted into the connecting holes 4 in the second connecting block 9 through the connecting holes 4 in the first connecting block 2, the connecting rod bolts 15 are hexagon socket bolts, and one end of the connecting rod bolts 15 having a hexagon socket is rotatably embedded in a surface of the first connecting block 2, the connecting rod nut 16 is a hexagon nut, the connecting rod nut 16 is embedded into the surface of the second connecting block 9 in a clamping manner, and the connecting holes 4 on the main body parts of the first connecting block 2 and the second connecting block 9 respectively penetrate through the positioning hole 3 and the positioning block 12.

Referring to fig. 1-4, a connecting rod structure with good stability, two second connecting blocks 9 and two first connecting blocks 2 are respectively provided with a positioning block 12 and a positioning hole 3 which are inserted into each other, the positioning block 12 is connected with the positioning hole 3 to realize that the second connecting block 9 is connected with the first connecting block 2 for the first time, a through hole is formed between one end of a connecting rod 1 and a connecting rod shaft cover 8 and is penetrated through, a connecting rod bearing bush 10 is arranged inside the through hole, two annular positioning rings 11 are arranged on the outer rings of the connecting rod bearing bush 10, two positioning grooves 7 which are matched with the positioning rings 11 in a sliding manner are formed in the inner walls of the through holes, and the positioning rings 11 are matched with the positioning grooves 7 to prevent the connecting rod bearing bush 10 from being separated from the inside of the through hole.

Referring to fig. 1-4, a connecting rod structure with good stability, a clamping component is arranged at a position close to a through hole on the opposite surface of one end of a connecting rod 1 and a connecting rod shaft cover 8, the clamping component comprises a first clamping groove 5, a first clamping block 6, a second clamping groove 13 and a second clamping block 14, a clamping bulge is arranged at one end of the first clamping block 6 and one end of the second clamping block 14 far away from a first connecting block 2 and a second connecting block 9, the top of the bulge is an inclined surface, the first connecting block 2 and the second connecting block 9 have elasticity, the inclined surface is arranged to facilitate the first connecting block 2 and the second connecting block 9 to be extruded and inserted into the first clamping groove 5 and the second clamping groove 13, after the first connecting block 2 and the second connecting block 9 are inserted in place, the clamping bulge clamps the first clamping groove 5 and the second clamping groove 13, the distance between the top and the bottom of the first clamping groove 5 and the second clamping groove 13 is the same as the height of the clamping bulge, and one end of the two first clamping grooves 5 is arranged at a position close to the through hole of the connecting rod 1, two first fixture blocks 6 are arranged at one end of the connecting rod 1 and are located on the outer sides of the two first clamping grooves 5, the second fixture block 14 is arranged at a position, close to the through hole, of the opposite surface of the connecting rod shaft cover 8 and the connecting rod 1, the second clamping groove 13 is formed in a position, located on the outer side of the second fixture block 14, of the opposite surface of the connecting rod shaft cover 8 and the connecting rod 1, the first fixture block 6 corresponds to and is clamped in a matched mode with the second clamping groove 13, the second fixture block 14 corresponds to and is clamped in a matched mode with the first clamping groove 5, and the first fixture block 6 and the second clamping groove 13, the second fixture block 14 and the first clamping groove 5 are vertically symmetrical by taking the middle position of the through hole as a symmetrical point.

Referring to fig. 1-4, a connecting rod structure with good stability, when the connecting rod is assembled: the connecting rod shaft cover 8 corresponds to one end of the connecting rod 1, so that the positioning block 12 is correspondingly inserted into the positioning hole 3, meanwhile, the first clamping block 6 and the second clamping block 14 are respectively inserted into the first clamping groove 5 and the second clamping groove 13 and clamped, the first connecting block 2 corresponds to the second connecting block 9 and is combined together, the connecting rod bearing bush 10 is clamped and limited, the positioning ring 11 on the connecting rod bearing bush 10 is located inside the positioning groove 7, and then a worker connects the first connecting block 2 and the second connecting block 9 together through a bolt.

In the present invention, the installation manner, the connection manner, or the setting manner of all the components described above are all common mechanical manners, and the specific structures, models, and coefficient indexes of all the components are their own technologies, and can be implemented as long as the beneficial effects thereof can be achieved, so that the details are not repeated.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

In the present invention, unless otherwise specified, the terms "upper, lower, left, right, front, back, inner, outer, vertical and horizontal" and the like included in the terms only represent the orientation of the terms in the conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the terms, and meanwhile, the terms "first", "second" and "third" and the like do not represent specific numbers and sequences, but are merely used for name differentiation, and the terms "include", "include" and any other variations are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a connecting rod structure that stability is good, includes connecting rod (1), its characterized in that, the one end of connecting rod (1) is equipped with connecting rod shaft cover (8), the top on connecting rod (1) surface and the position that the bottom is close to one end are the first connecting block (2) of type all an organic whole, connecting rod shaft cover (8) top and bottom all integrated into one piece have second connecting block (9), two second connecting block (9) and two first connecting block (2) are equipped with respectively and insert locating piece (12) and locating hole (3) of establishing mutually, be the through-hole that runs through between the one end of connecting rod (1) and connecting rod shaft cover (8), and the inside connecting rod axle bush (10) that is equipped with of through-hole, the one end of connecting rod (1) and the position that connecting rod shaft cover (8) opposite face is close to the through-hole are equipped with the joint subassembly.

2. The connecting rod structure with good stability according to claim 1, wherein the first connecting block (2) and the second connecting block (9) are composed of a main body portion and two side portions integrally formed at two sides of the main body portion, the surfaces of the main body portion and the side portions are both provided with connecting holes (4) through, and bolts are arranged in the connecting holes (4), and the connecting holes (4) on the main body portions of the first connecting block (2) and the second connecting block (9) respectively penetrate through the positioning holes (3) and the positioning blocks (12).

3. The connecting rod structure with good stability according to claim 2, wherein the bolt piece is composed of a connecting rod bolt (15) and a connecting rod nut (16) which are connected with each other in a threaded manner, the connecting rod bolt (15) is inserted into the connecting hole (4) in the second connecting block (9) through the connecting hole (4) in the first connecting block (2), the connecting rod bolt (15) is an inner hexagonal bolt, one end of the connecting rod bolt (15) with an inner hexagonal notch is embedded into the surface of the first connecting block (2) in a rotating manner, the connecting rod nut (16) is a hexagonal nut, and the connecting rod nut (16) is embedded into the surface of the second connecting block (9) in a clamping manner.

4. The connecting rod structure with good stability according to claim 1, wherein the outer ring of the connecting rod bearing shell (10) is provided with two annular positioning rings (11), and the inner wall of the through hole is provided with two positioning grooves (7) which are matched with the positioning rings (11) in a sliding manner.

5. The connecting rod structure with good stability according to claim 1, wherein the clamping assembly comprises a first clamping groove (5), a first clamping block (6), a second clamping groove (13) and a second clamping block (14), the two first clamping grooves (5) are arranged at positions close to the through hole at one end of the connecting rod (1), the two first clamping blocks (6) are arranged at positions, close to the through hole, at one end of the connecting rod (1), of the two first clamping grooves (5), the second clamping block (14) is arranged at positions, close to the through hole, of opposite surfaces of the connecting rod shaft cover (8) and the connecting rod (1), and the second clamping groove (13) is arranged at positions, close to the outer side of the second clamping block (14), of opposite surfaces of the connecting rod shaft cover (8) and the connecting rod (1).

6. The connecting rod structure with good stability according to claim 5, wherein the first clamping block (6) corresponds to and is in matched clamping with the second clamping groove (13), the second clamping block (14) corresponds to and is in matched clamping with the first clamping groove (5), and the first clamping block (6), the second clamping groove (13), the second clamping block (14) and the first clamping groove (5) are vertically symmetrical by taking a middle position of the through hole as a symmetrical point.