CN214578274U

CN214578274U - High-strength crankshaft

Info

Publication number: CN214578274U
Application number: CN202120758821.7U
Authority: CN
Inventors: 陈特海
Original assignee: ZHEJIANG HUIHAO MACHINERY MANUFACTURING CO LTD
Current assignee: ZHEJIANG HUIHAO MACHINERY MANUFACTURING CO LTD
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-11-02
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses a high strength bent axle, including the bent axle body, the both ends of bent axle body are equipped with first axle journal and second axle journal respectively, and the equal fixedly connected with main shaft journal of one end that first axle journal and second axle journal are close to mutually, and the equal fixedly connected with crank in one side that two main shaft journals are close to mutually is equipped with the connecting rod journal between two cranks, and the spout has all been seted up at the outside both ends of connecting rod journal, the utility model discloses the beneficial effect who reaches is: the utility model discloses compact structure, the practicality is strong, be convenient for better protecting the rod journal through the sliding sleeve, make outside piston rod directly cup joint in the outside of sliding sleeve, promoted bent axle bulk strength, when taking place to produce wearing and tearing after long-time the use, only need change alone the sliding sleeve can, be convenient for better carry on spacingly to outside piston rod through strengthening the packing ring simultaneously, prevent the skew, be convenient for play a protection to the connecting screw of installation rod journal through the protection subassembly and prevent the effect that moves back.

Description

High-strength crankshaft

Technical Field

The utility model relates to a bent axle, in particular to high strength bent axle belongs to bent axle technical field.

Background

The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load. Therefore, the crankshaft is required to have enough strength and rigidity, the surface of the journal needs to be wear-resistant, the work is uniform, the balance is good, the existing high-strength crankshaft is difficult to avoid the abrasion between the journal of the connecting rod and the piston connecting rod when in use, although the abrasion consumption can be reduced through lubricating oil, once the crankshaft is seriously abraded after being used for a long time, the crankshaft can only be replaced in order to ensure the transmission effect of the engine, and the cost is overhigh.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a high strength bent axle.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a high strength bent axle, including the bent axle body, the both ends of bent axle body are equipped with first axle journal and second axle journal respectively, the equal fixedly connected with main shaft journal of one end that first axle journal and second axle journal are close to mutually, two the equal fixedly connected with crank in one side that the main shaft journal is close to mutually, two be equipped with the connecting rod journal between the crank, the spout has all been seted up at the outside both ends of connecting rod journal, first screw hole has all been seted up to the both sides of connecting rod journal, the outside of connecting rod journal is equipped with the sliding sleeve, the inner wall both sides of sliding sleeve all are equipped with spacing lug, spacing lug and spout sliding connection, the equal fixedly connected with in outside both ends of sliding sleeve strengthens the packing ring, the oilhole has all been seted up in the outside of connecting rod journal and sliding sleeve, articulate one end is equipped with the protection component.

As a preferred scheme of the utility model, the protection component comprises a screw mounting groove, a connecting screw, a cover plate, a U-shaped groove, a connecting block, a metal elastic sheet, a connecting rod, an unlocking block, a second threaded hole, an unlocking screw, a push block, a first shaft neck of the screw mounting groove and a second shaft neck of the screw mounting groove, wherein the screw mounting groove is arranged at one end of the crank, which is far away from one side of the connecting rod shaft neck, the middle part of the screw mounting groove is provided with the connecting screw, the connecting screw penetrates through the crank and is in threaded connection with the first threaded hole, the two ends of the screw mounting groove are both connected with the cover plate in a sliding way, the U-shaped groove is arranged inside the crank, one side of the cover plate extends into the U-shaped groove and is fixedly connected with the connecting block, one side of the connecting block, which is far away from the connecting block, is fixedly connected with the inner wall of the U-shaped groove, the bottom of connecting block and the one end fixedly connected with connecting rod of laminating mutually with the apron, two the connecting rod is close to the equal fixedly connected with unlocking block in bottom of one side mutually, the second screw hole has been seted up to articulate bottom, the inside threaded connection of second screw hole has the unblock screw, the one end of unblock screw extends to the inside in U type groove and rotates and be connected with the ejector pad.

As an optimized proposal of the utility model, the unlocking block is of a triangular structure, and the pushing block is of a trapezoidal structure.

As an optimized proposal of the utility model, the inner side of the cover plate is attached to the connecting screw.

As an optimized scheme of the utility model, the protection subassembly is the symmetry structure.

As an optimized proposal of the utility model, the outside of the reinforced gasket is of an arc structure.

As an optimized proposal of the utility model, the inner diameter of the sliding sleeve is matched with the size of the connecting rod journal.

The utility model discloses the beneficial effect who reaches is: the utility model discloses compact structure, therefore, the clothes hanger is strong in practicability, be convenient for better protecting the connecting rod axle journal through the sliding sleeve, make outside piston rod directly cup joint in the outside of sliding sleeve, the bent axle bulk strength has been promoted, when taking place to produce wearing and tearing after long-time the use, only need change alone the sliding sleeve can, simultaneously through strengthening the packing ring be convenient for better carry on spacingly to outside piston rod, prevent the skew, be convenient for play a protection to the connecting screw of installation connecting rod axle journal through the protection subassembly and prevent the effect that moves back, can also open the apron and then expose connecting screw through adjusting the unblock screw when overhauing the bent axle simultaneously, thereby pull down the connecting rod axle journal.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the present invention when the connecting rod journal and the sliding sleeve are separated;

FIG. 3 is a schematic structural view of the crank of the present invention;

fig. 4 is an enlarged view of the position a of the present invention.

In the figure: 1. a crankshaft body; 2. a first journal; 3. a second journal; 4. a main journal; 5. a crank; 6. a connecting rod journal; 7. a chute; 8. a first threaded hole; 9. a sliding sleeve; 10. a limiting bump; 11. a reinforcing washer; 12. an oil hole; 13. a protection component; 131. a screw mounting groove; 132. a connecting screw; 133. a cover plate; 134. a U-shaped groove; 135. connecting blocks; 136. a metal spring sheet; 137. a connecting rod; 138. unlocking the block; 139. a second threaded hole; 1310. unlocking the screw; 1311. and (7) pushing the block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in FIGS. 1-4, the utility model provides a high-strength crankshaft, which comprises a crankshaft body 1, a first journal 2 and a second journal 3 are respectively arranged at two ends of the crankshaft body 1, a main journal 4 is fixedly connected at one end of the first journal 2 close to the second journal 3, a crank 5 is fixedly connected at one side of the two main journals 4 close to the main journal, a connecting rod journal 6 is arranged between the two cranks 5, a chute 7 is arranged at two ends of the outer side of the connecting rod journal 6, a first threaded hole 8 is arranged at two sides of the connecting rod journal 6, a sliding sleeve 9 is arranged at the outer side of the connecting rod journal 6, a limit bump 10 is arranged at two sides of the inner wall of the sliding sleeve 9, the limit bump 10 is connected with the chute 7 in a sliding manner, a reinforcing washer 11 is fixedly connected at two ends of the outer side of the sliding sleeve 9, an oil hole 12 is arranged at each of the outer side of the connecting rod journal 6 and the sliding sleeve 9, a protection component 13 is arranged at one end of the crank 5, be convenient for better protecting connecting rod axle journal 6 through sliding sleeve 9, make outside piston rod directly cup joint in the outside of sliding sleeve 9, promoted bent axle bulk strength, when taking place to use for a long time after the production wearing and tearing, only need change sliding sleeve 9 alone can, be convenient for better through strengthening packing ring 11 simultaneously spacing to outside piston rod, prevent the skew.

Further, the protection component 13 includes a screw mounting groove 131, a connection screw 132, a cover plate 133, a U-shaped groove 134, a connection block 135, a metal elastic sheet 136, a connection rod 137, an unlocking block 138, a second threaded hole 139, an unlocking screw 1310, a push block 1311, a first journal 2 of the screw mounting groove 131, a second journal 3 of the screw mounting groove 131, a screw mounting groove 131 is opened at one end of the crank 5 away from the connecting journal 6, the connection screw 132 is disposed in the middle of the screw mounting groove 131, the connection screw 132 penetrates through the crank 5 and is in threaded connection with the first threaded hole 8, the cover plate 133 is slidably connected to both ends of the screw mounting groove 131, the U-shaped groove 134 is opened inside the crank 5, one side of the cover plate 133 extends into the U-shaped groove 134 and is fixedly connected with the connection block 135, one side of the connection block 135 away from the cover plate 133 is fixedly connected with the metal elastic sheet 136, one side of the metal elastic sheet 136 away from the connection block 135 is fixedly connected with the inner wall of the U-shaped groove 134, the bottom of the connecting block 135 and the end attached to the cover plate 133 are fixedly connected with connecting rods 137, the bottoms of the two connecting rods 137 close to one side are fixedly connected with unlocking blocks 138, the bottom of the crank 5 is provided with a second threaded hole 139, the inner thread of the second threaded hole 139 is connected with an unlocking screw 1310, one end of the unlocking screw 1310 extends into the U-shaped groove 134 and is rotatably connected with a pushing block 1311, the connecting screw 132 is in threaded connection with the first threaded hole 8 to better fix the connecting rod journal 6, meanwhile, the connecting block 135 and the cover plate 133 can be protected and prevented from moving back by pushing the connecting screw 132 through the metal elastic sheet 136, the cover plate 133 can be unlocked and exposed out of the connecting screw 132 when overhauling is facilitated through the matching of the pushing block 1311 and the unlocking block 138, and the protection component 13 is convenient for protecting and preventing the connecting screw 132 for installing the connecting rod journal 6 from moving back, meanwhile, the connecting rod journal 6 can be detached by opening the cover plate 133 and exposing the connecting screw 132 by adjusting the unlocking screw 1310 when the crankshaft is repaired.

Furthermore, the unlocking block 138 is of a triangular structure, and the pushing block 1311 is of a trapezoidal structure, so that better matching is facilitated, and the pushing block 1311 can be directly pushed to two sides of the unlocking block 138 when moving towards the unlocking block 138.

Furthermore, the inner side of the cover plate 133 is attached to the connecting screw 132, so that the connecting screw 132 is better protected and the anti-backing effect is achieved.

Furthermore, the protection component 13 is of a symmetrical structure, so that the crankshaft structure is convenient to optimize.

Furthermore, the outer side of the reinforcing gasket 11 is of an arc-shaped structure, so that the external piston connecting rod can be better limited.

Furthermore, the inner diameter of the sliding sleeve 9 is matched with the size of the connecting rod shaft neck 6, so that the connecting rod shaft neck 6 can be better protected.

Specifically, when in use, the external piston connecting rod is sleeved outside the sliding sleeve 9, the sliding sleeve 9 is sleeved outside the connecting rod journal 6, after abrasion occurs after long-time use, only the sliding sleeve 9 needs to be replaced independently, when the sliding sleeve 9 is replaced, the connecting screw 132 needs to be screwed down, the connecting screw 132 can be taken down, the connecting rod journal 6 can be taken down, and then the sliding sleeve 9 can be taken down, as shown in a main journal 4, firstly, the unlocking screw 1310 is screwed in through a screwdriver, the unlocking screw 1310 is screwed in, the pushing block 1311 jacks up the unlocking blocks 138 on two sides to enable the unlocking blocks to slide towards two sides, the unlocking blocks 138 drive the connecting blocks 135 to slide towards two sides through the connecting rods 137, so that the two cover plates 133 slide towards two sides, the connecting screw 132 in the screw mounting groove 131 is exposed, then, the connecting screw 132 can be unscrewed, the connecting rod journal 6 can be separated from the crank 5, then, a new sliding sleeve 9 is sleeved outside the connecting rod journal 6, after the new sliding sleeve 9 is replaced, and the operation is carried out reversely to complete the installation of the connecting rod journal 6.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The high-strength crankshaft comprises a crankshaft body (1) and is characterized in that two ends of the crankshaft body (1) are respectively provided with a first journal (2) and a second journal (3), one end, close to the first journal (2) and the second journal (3), of the first journal and the second journal (3) is fixedly connected with a main journal (4), one side, close to the main journal (4), of the main journal is fixedly connected with a crank (5), a connecting rod journal (6) is arranged between the cranks (5), two outer ends of the connecting rod journal (6) are provided with sliding chutes (7), two sides of the connecting rod journal (6) are provided with first threaded holes (8), the outer side of the connecting rod journal (6) is provided with a sliding sleeve (9), two inner wall sides of the sliding sleeve (9) are provided with limiting lugs (10), the limiting lugs (10) are slidably connected with the sliding chutes (7), two outer ends of the sliding sleeve (9) are fixedly connected with reinforcing gaskets (11), the outer sides of the connecting rod journal (6) and the sliding sleeve (9) are both provided with oil holes (12), and one end of the crank (5) is provided with a protection component (13).

2. The high-strength crankshaft according to claim 1, wherein the protection component (13) comprises a screw mounting groove (131), a connecting screw (132), a cover plate (133), a U-shaped groove (134), a connecting block (135), a metal elastic sheet (136), a connecting rod (137), an unlocking block (138), a second threaded hole (139), an unlocking screw (1310), a pushing block (1311), a first journal (2) of the screw mounting groove (131), and a second journal (3) of the screw mounting groove (131), the screw mounting groove (131) is formed in one end of the crank (5) far away from the connecting rod journal (6), the connecting screw (132) is arranged in the middle of the screw mounting groove (131), the connecting screw (132) penetrates through the crank (5) and is in threaded connection with the first threaded hole (8), the cover plate (133) is slidably connected to two ends of the screw mounting groove (131), a U-shaped groove (134) is formed in the crank (5), one side of the cover plate (133) extends into the U-shaped groove (134) and is fixedly connected with a connecting block (135), one side of the connecting block (135) far away from the cover plate (133) is fixedly connected with a metal elastic sheet (136), one side of the metal elastic sheet (136) far away from the connecting block (135) is fixedly connected with the inner wall of the U-shaped groove (134), one end of the bottom of the connecting block (135) which is attached to the cover plate (133) is fixedly connected with a connecting rod (137), the bottoms of the two connecting rods (137) which are close to one side are fixedly connected with an unlocking block (138), a second threaded hole (139) is formed in the bottom of the crank (5), an unlocking screw (1310) is connected with the inner thread of the second threaded hole (139), one end of the unlocking screw (1310) extends to the inside of the U-shaped groove (134) and is rotatably connected with a push block (1311).

3. A high strength crankshaft according to claim 2, wherein said unlocking block (138) is of a triangular configuration and said pushing block (1311) is of a trapezoidal configuration.

4. A high strength crankshaft according to claim 2, characterized in that the inner side of the cover plate (133) is attached to the connection screw (132).

5. A high strength crankshaft according to claim 1, characterized in that the protection member (13) is of symmetrical construction.

6. A high strength crankshaft according to claim 1, characterized in that the outer side of the reinforcing washer (11) is of an arc type structure.

7. A high strength crankshaft according to claim 1, characterized in that the inner diameter of the sliding sleeve (9) matches the size of the connecting rod journal (6).