CN112065578A

CN112065578A - Crankshaft connecting rod device for production of agricultural machine accessories

Info

Publication number: CN112065578A
Application number: CN202010962773.3A
Authority: CN
Inventors: 张颜铄; 张义
Original assignee: Harbin Gongcheng Technology Co ltd
Current assignee: Wendeng Pengchao Machinery Factory
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-12-11
Anticipated expiration: 2040-09-14
Also published as: CN112065578B

Abstract

A crankshaft connecting rod device for production of agricultural machinery accessories relates to a crankshaft connecting rod. The piston is installed to the connecting rod upper end, the lower extreme is equipped with the mounting hole and is connected with the crankshaft corresponds the position rotation, crankshaft head festival and the coaxial interval setting of the terminal festival of crankshaft, crankshaft head festival is equipped with the head end and connects and be fixed with the head end round pin axle, crankshaft end festival is equipped with terminal recess and link up there is terminal pinhole, crankshaft standard festival head and tail both ends are equipped with standard recess and standard joint respectively, standard recess links up there is the standard pinhole, standard joint is fixed with the standard round pin axle, head and tail is articulated in proper order between a plurality of crankshaft standard festival, head end round pin axle is articulated with the standard pinhole of the crankshaft standard festival of head end, terminal pinhole is articulated with the standard round pin axle of the crankshaft standard festival of tail end, every hinge point position is fixed through positioning fastener. The crankshaft is improved into a sectional type hinged form and then is fixed through a positioning fastener, and the production and maintenance cost is effectively reduced.

Description

Crankshaft connecting rod device for production of agricultural machine accessories

Technical Field

The invention relates to a crankshaft connecting rod, in particular to a crankshaft connecting rod device for producing agricultural machine accessories, and belongs to the technical field of production and manufacturing of agricultural machine accessories.

Background

The crankshaft connecting rod is a main motion mechanism of the engine, converts reciprocating motion of the piston into rotary motion of the crankshaft, and simultaneously converts force acting on the piston into torque output by the crankshaft to the outside so as to drive wheels of the automobile to rotate. In agricultural machinery, because of high requirements on power, a diesel engine is basically adopted, and the torsional load of a crankshaft connecting rod is larger, so that the crankshaft is more easily broken. Traditional bent axle all adopts the integral type structure, is difficult to restore after the fracture on the one hand, can only wholly change, and cost of maintenance is higher, and on the other hand processing degree of difficulty is great, and technology is complicated. Therefore, there is a need for improved crankshaft connecting rods to solve the above problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides the crankshaft connecting rod device for producing the agricultural machinery accessories, the crankshaft is improved into a sectional type hinged mode and is fixed through the positioning fastener, the crankshaft can be replaced according to the damaged position, the maintenance cost is lower, the processing simplification is facilitated, and the production and maintenance cost is effectively reduced.

In order to achieve the purpose, the invention adopts the following technical scheme: a crankshaft connecting rod device for production of agricultural machinery accessories comprises a crankshaft and a plurality of connecting rods, wherein pistons are respectively installed at the upper ends of the connecting rods, mounting holes are respectively formed in the lower ends of the connecting rods, the connecting rods are rotatably connected with corresponding positions of the crankshaft through the mounting holes, the crankshaft comprises a crankshaft head section, a crankshaft tail section, a plurality of crankshaft standard sections and a plurality of positioning fasteners, the crankshaft head section, the crankshaft tail section and the crankshaft standard sections are round rod-shaped members, the crankshaft head section and the crankshaft tail section are coaxially arranged at intervals, a head end connector is integrally arranged at the inner side end of the crankshaft head section, a head end pin shaft is transversely fixed at the central position of the head end connector, a tail end groove is formed in the inner side end of the crankshaft tail section, a tail end pin hole is transversely penetrated through the tail end groove, the crankshaft standard sections are arranged between the crankshaft head section and the crankshaft tail end section, and the head end and tail ends of each, the standard groove is transversely penetrated with a standard pin hole, the standard joint and the crankshaft standard joint are integrally formed, a standard pin shaft is transversely fixed at the center of the standard joint, a plurality of crankshaft standard joints are hinged with the standard pin shaft through the corresponding standard pin holes in sequence from head to tail, the head end pin shaft is hinged with the standard pin hole of the head end crankshaft standard joint, the tail end pin hole is hinged with the standard pin shaft of the tail end crankshaft standard joint, the positions of the hinged points among the head end joint of the crankshaft, the tail end joint of the crankshaft and the plurality of crankshaft standard joints are respectively fixed through positioning fasteners, thereby limiting the shape of the crankshaft, the whole appearance of the positioning fastener is a tube shape with an included angle a between the axes of two ends, and the vertical surface where the axes of the two ends are located is symmetrically divided into two split bodies, the two split bodies are fixed through bolts, and the included angle a of the positioning fastener is 135 degrees.

Compared with the prior art, the invention has the beneficial effects that: the crankshaft is in a sectional hinged mode and is formed by assembling the crankshaft head section, the crankshaft tail section and the plurality of crankshaft standard sections and then is fixed through the positioning fasteners, so that the arrangement is more flexible, the number of the crankshaft standard sections is conveniently adjusted and controlled to adapt to engines with different cylinder numbers, targeted replacement is facilitated according to damaged positions, the problem of high maintenance cost caused by integral replacement is solved, the maintenance cost is lower, the split assembled structure is beneficial to processing simplification, the production and maintenance cost is effectively reduced, and the split assembled crankshaft has good application value.

Drawings

FIG. 1 is an isometric view of the overall construction of a crankshaft connecting rod assembly for use in the manufacture of agricultural machinery accessories in accordance with the present invention;

FIG. 2 is an isometric view of a crankshaft of the present invention with locating fasteners not shown for ease of viewing;

FIG. 3 is an isometric view of a standard section of a crankshaft of the present invention;

FIG. 4 is an isometric view of a crankshaft nose section of the present invention;

FIG. 5 is an isometric view of a crankshaft end section of the present invention;

fig. 6 is an isometric view of a retaining clip of the present invention.

Detailed Description

The technical solutions in 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 a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

The first embodiment is as follows: as shown in fig. 1-6, the invention discloses a crankshaft connecting rod device for producing agricultural machinery accessories, comprising a crankshaft and a plurality of connecting rods 5, wherein pistons 6 are respectively installed at the upper ends of the connecting rods 5, the lower ends of the connecting rods 5 are respectively provided with an installation hole 5-1 and are rotatably connected with the corresponding position of the crankshaft through the installation hole 5-1, the crankshaft comprises a crankshaft head section 1, a crankshaft tail section 2, a plurality of crankshaft standard sections 3 and a plurality of positioning fasteners 4, the crankshaft head section 1, the crankshaft tail section 2 and the crankshaft standard sections 3 are all round rod-shaped members, the crankshaft head section 1 and the crankshaft tail section 2 are coaxially arranged at intervals, a head joint 1-1 is integrally arranged at the inner side end of the crankshaft head section 1, a head pin shaft 1-2 is transversely fixed at the central position of the head joint 1-1, a tail groove 2-1 is arranged at the inner side end of the crankshaft tail section 2, the tail end groove 2-1 is transversely penetrated with a tail end pin hole 2-2, a plurality of crankshaft standard sections 3 are arranged between the crankshaft head end section 1 and the crankshaft tail end section 2, the head end and the tail end of each crankshaft standard section 3 are respectively provided with a standard groove 3-1 and a standard joint 3-3, the standard groove 3-1 is transversely penetrated with a standard pin hole 3-2, the standard joint 3-3 and the crankshaft standard section 3 are integrally formed, the center position of the standard joint is transversely fixed with a standard pin shaft 3-4, the head end and the tail end of each crankshaft standard section 3 are hinged with the standard pin hole 3-2 and the standard pin shaft 3-4 through the corresponding standard pin hole 3-2, the head end pin shaft 1-2 is hinged with the standard pin hole 3-2 of the crankshaft standard section 3 at the head end, and the tail end pin hole 2-2 is hinged with the standard pin shaft 3-4 of the, every hinge point position is fixed through location fastener 4 respectively between bent axle head section 1, bent axle end section 2 and a plurality of bent axle standard festival 3 to inject the shape of bent axle, the whole appearance of location fastener 4 is the tubulose that has contained angle a between the axis of both ends, and is split into two components of a whole that can function independently by the facade symmetry at both ends axis place, fix through the bolt between two components of a whole that can function independently, location fastener 4 contained angle a's angle is 135.

The second embodiment is as follows: as shown in fig. 1 and 6, in this embodiment, a first specific embodiment is further described, two ends of the positioning fastener 4 are respectively provided with a limiting ring 4-2 coaxially at an interval, the limiting ring 4-2 is formed by splicing two symmetrical half rings, and the two half rings are respectively connected and fixed with the split end of the corresponding positioning fastener 4 through a fixing column 4-1.

The third concrete implementation mode: as shown in fig. 3 and 6, in this embodiment, a first specific embodiment is further described, and anti-slip threads 7 are respectively disposed at two ends of the sidewall of the crankshaft standard knot 3 and at inner sides of pipe orifices at two ends of the positioning fastener 4.

Referring to fig. 2, the crankshaft adopts a sectional type hinged form and comprises a crankshaft head end section 1, a crankshaft tail end section 2 and a plurality of crankshaft standard sections 3, as shown in the combined figure 3, the head end and the tail end of each crankshaft standard section 3 are respectively provided with a standard groove 3-1 and a standard joint 3-3, the standard groove 3-1 is communicated with a standard pin hole 3-2, and a standard pin shaft 3-4 is fixed on the standard joint 3-3, so that the plurality of crankshaft standard sections 3 can be hinged with each other end to end through the corresponding standard pin hole 3-2 and the standard pin shaft 3-4, as shown in the combined figure 4, the crankshaft head end section 1 is provided with a head end joint 1-1, the head end joint 1-1 is fixed with a head end pin shaft 1-2, and is hinged with the standard pin hole 3-2 of the head end crankshaft standard section 3 in the plurality of crankshaft standard sections 3 which are connected into a whole through the head, referring to fig. 5, a tail end groove 2-1 is formed in a crankshaft tail end section 2, a tail end pin hole 2-2 penetrates through the tail end groove 2-1, the crankshaft tail end section 1 and the crankshaft tail end section 2 are coaxially arranged at intervals and hinged with a standard pin shaft 3-4 of a crankshaft standard section 3 at the tail end in a plurality of crankshaft standard sections 3 connected into a whole through the tail end pin hole 2-2, the crankshaft standard sections 3 connected into a whole are bent into a shape of the middle part of a crankshaft through a hinge point, an included angle between two ends of each hinge point is 135 degrees, the shape of the crankshaft is conveniently limited at each hinge point position through a positioning fastener 4, the overall shape of the positioning fastener 4 is a tubular shape with an included angle a between axes at two ends, the included angle a is 135 degrees and can be matched with two ends of the hinge point, the positioning fastener 4 is fixed by two split bodies through bolts, the anti-skidding lines 7 are respectively arranged at the two ends of the side wall of the crankshaft standard knot 3 and the inner sides of pipe orifices at the two ends of the positioning fastener 4, so that the tightness of the positioning fastener 4 is improved, as shown in figure 1, the number of the crankshaft standard knot 3 can be adjusted and controlled to adapt to engines with different cylinder numbers, the arrangement is more flexible, the piston 6 is arranged at the upper end of the connecting rod 5, the lower end of the connecting rod 5 is rotatably connected with the corresponding position of a crankshaft through the mounting hole 5-1, a crankshaft connecting rod device is integrally formed, the limiting rings 4-2 are arranged at the two ends of the positioning fastener 4, the position of the lower end of the connecting rod 5 is limited.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an agricultural machinery accessory production is with bent axle connecting rod device, includes bent axle and many connecting rods (5), piston (6) are installed respectively to many connecting rods (5) upper end, and many connecting rods (5) lower extreme is equipped with mounting hole (5-1) respectively, and pass through mounting hole (5-1) correspond the position with the bent axle and rotate and be connected its characterized in that: the crankshaft comprises a crankshaft head section (1), a crankshaft tail end section (2), a plurality of crankshaft standard sections (3) and a plurality of positioning fasteners (4), wherein the crankshaft head section (1), the crankshaft tail end section (2) and the crankshaft standard sections (3) are round rod-shaped members, the crankshaft head section (1) and the crankshaft tail end section (2) are coaxially arranged at intervals, a head end connector (1-1) is integrally arranged at the inner side end of the crankshaft head section (1), a head end pin shaft (1-2) is transversely fixed at the center position of the head end connector (1-1), a tail end groove (2-1) is arranged at the inner side end of the crankshaft tail end section (2), a tail end pin hole (2-2) is transversely penetrated through the tail end groove (2-1), and the plurality of crankshaft standard sections (3) are arranged between the crankshaft head end section (1) and the crankshaft tail end section (2), the standard grooves (3-1) and the standard joints (3-3) are respectively arranged at the head end and the tail end of each crankshaft standard joint (3), the standard grooves (3-1) are transversely penetrated with standard pin holes (3-2), the standard joints (3-3) and the crankshaft standard joints (3) are integrally formed, standard pin shafts (3-4) are transversely fixed at the center positions of the standard joints, the standard joints (3) of the crankshafts are hinged with the standard pin shafts (3-4) through the corresponding standard pin holes (3-2) at the head end and the tail end in sequence, the head end pin shaft (1-2) is hinged with the standard pin hole (3-2) of the crankshaft standard joint (3) at the head end, the tail end pin hole (2-2) is hinged with the standard pin shaft (3-4) of the crankshaft standard joint (3) at the tail end, and the head end joint (1) of the cranks is hinged with, Every hinge point position is fixed through location fastener (4) respectively between bent axle end section (2) and a plurality of bent axle standard festival (3) to inject the shape of bent axle, location fastener (4) whole appearance is the tubulose that has contained angle a between the both ends axis to cut apart into two components of a whole that can function independently by both ends axis place facade symmetry, fix through the bolt between two components of a whole that can function independently, location fastener (4) contained angle a's angle is 135.

2. The agricultural machinery accessory production crankshaft connecting rod device of claim 1, characterized in that: the two ends of the positioning fastener (4) are respectively provided with a limiting ring (4-2) coaxially at intervals, the limiting rings (4-2) are formed by splicing two symmetrical semi-rings, and the two semi-rings are respectively connected and fixed with the split end parts of the corresponding positioning fasteners (4) through fixing columns (4-1).

3. The agricultural machinery accessory production crankshaft connecting rod device of claim 1, characterized in that: and anti-skid grains (7) are respectively arranged at the two ends of the side wall of the crankshaft standard knot (3) and at the inner sides of pipe orifices at the two ends of the positioning fastener (4).