CN220706210U

CN220706210U - Detachable engine crankshaft

Info

Publication number: CN220706210U
Application number: CN202322510213.6U
Authority: CN
Inventors: 阎胜军; 孙云涛; 阎汐睿
Original assignee: Qingdao Xuruifeng Casting Co ltd
Current assignee: Qingdao Xuruifeng Casting Co ltd
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-04-02
Anticipated expiration: 2033-09-15

Abstract

The utility model discloses a detachable engine crankshaft which comprises a first main journal, wherein one side of the first main journal is fixedly connected with a crank, a connecting journal is fixedly connected between the cranks, and one side of the crank is fixedly connected with a second main journal. This dismantlement formula engine crankshaft is through being provided with connecting plate, the installation piece, the rubber pad, mounting groove and installation draw-in groove, twist out fixing bolt from the inside of mounting groove when need dismantling the bent axle and make the installation piece lose fixedly, the installation piece loses the fixed then can take off connecting plate and first main journal from one side of flywheel, thereby can realize dismantling the bent axle, be provided with the rubber pad between fixing bolt and installation draw-in groove, the rubber pad not only can prevent that fixing bolt from rusting the card and dying in the inside of mounting groove, can also prevent that fixing bolt accident from breaking away from the inside of mounting groove, what the solution is inconvenient messenger engine crankshaft dismantles from the flywheel, the inconvenient problem of use.

Description

Detachable engine crankshaft

Technical Field

The utility model relates to the technical field of engine crankshafts, in particular to a detachable engine crankshaft.

Background

The crankshaft is a main rotating part of the engine, the material of the crankshaft is mainly made of carbon structural steel or ductile cast iron, the crankshaft is provided with two important parts, namely a main journal and a connecting rod journal, and the rotation of the crankshaft is not only a power source of the engine but also a source power of the whole mechanical system, but the engine crankshaft is inconvenient to detach from a flywheel and inconvenient to use when the engine crankshaft is used, so that a novel detachable engine crankshaft is provided for improving the problems.

Disclosure of Invention

The utility model aims to provide a detachable engine crankshaft, which solves the problems that in the prior art, the engine crankshaft is inconvenient to detach from a flywheel and inconvenient to use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dismantlement formula engine crankshaft, includes first main journal, one side fixedly connected with crank of first main journal, fixedly connected with connecting axle journal between the crank, one side fixedly connected with second main journal of crank, the opposite side welding of first main journal has the connecting plate, the connecting plate opposite side is provided with the flywheel, flywheel one side fixedly connected with installation piece, the opposite side fixedly connected with installation draw-in groove of connecting plate, the installation groove has been seted up respectively to the inside of installation piece and installation draw-in groove, the inside of installation groove is provided with fixing bolt, the outside bottom of fixing bolt is provided with the rubber pad.

Preferably, the installation block is fixed in the installation clamping groove through the fixing bolt and the installation groove, and the rubber pad is arranged between the fixing bolt and the installation clamping groove.

Preferably, the bottom of the crank outside is provided with a balance weight, a reserved groove is formed in one end of the second main journal, an oil inlet hole is formed in the other end of the reserved groove, and a blocking block is arranged in the reserved groove and the oil inlet hole.

Preferably, the other end of the blocking block is embedded in the oil inlet, and one end of the blocking block is arranged in the reserved groove.

Preferably, one end of the connecting shaft neck is provided with a first protective hoop, the other end of the first protective hoop is provided with a second protective hoop, the bottom and the top of the other end of the first protective hoop are respectively and fixedly connected with a limiting insert block, the bottom and the top of one end of the second protective hoop are provided with limiting grooves, the interiors of the limiting grooves and the limiting insert blocks are provided with fixing grooves, and the interiors of the fixing grooves are provided with mounting bolts.

Preferably, the limiting insert block is embedded in the limiting groove, and the first protective hoop and the second protective hoop are matched with each other.

Compared with the prior art, the utility model has the beneficial effects that: the detachable engine crankshaft not only realizes the convenience of disassembling the engine crankshaft and preventing the oil inlet from being blocked, but also realizes the convenience of replacing the protective hoop;

(1) Through being provided with connecting plate, installation piece, fixing bolt, rubber pad, mounting groove and installation draw-in groove, need twist out fixing bolt from the inside of mounting groove when dismantling the bent axle and make the installation piece lose fixedly, the installation piece loses the fixing then can take off connecting plate and first main journal from one side of flywheel to can realize dismantling the bent axle, be provided with the rubber pad between fixing bolt and installation draw-in groove, the rubber pad not only can prevent that fixing bolt from rustting the card and dying in the inside of mounting groove, can also prevent that fixing bolt from accidentally breaking away from the inside of mounting groove;

(2) The balance block, the reserved groove, the blocking block and the oil inlet are arranged, so that the power of the crankshaft is increased by the balance block outside the crank, the performance of the device can be further exerted, the blocking block is arranged in the oil inlet and can prevent dust and impurities from entering the oil inlet to cause the blocking of the oil inlet, the blocking block is pulled out of the oil inlet when the oil inlet is required to be used, and the reserved groove can prevent the blocking block from protruding to influence the use;

(3) Through being provided with first protective collar, spacing inserted block, spacing groove, mounting bolt and fixed slot, overlap first protective collar and second protective collar at the outside both ends of connecting the axle journal, make spacing inserted block embedding spacing groove's inside when overlapping first protective collar and second protective collar, then fix first protective collar and second protective collar in the outside of connecting the axle journal when screwing in the inside of fixed slot again to can prevent that the connecting the axle journal from receiving wearing and tearing, directly dismantle first protective collar and second protective collar when first protective collar and second protective collar are impaired and change can, need not change whole bent axle, the flexibility is higher can reduce the cost.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic side view of a first protective collar of the present utility model;

FIG. 3 is an enlarged schematic view of the front cross-section of the flywheel of the present utility model;

FIG. 4 is an enlarged cross-sectional view of FIG. 1A according to the present utility model;

fig. 5 is an enlarged schematic side view of the connecting plate of the present utility model.

In the figure: 1. a first main journal; 2. a connecting plate; 3. a flywheel; 4. a crank; 5. a connecting journal; 6. a second main journal; 7. a first protective cuff; 8. a balance weight; 9. limiting plug blocks; 10. a limit groove; 11. installing a bolt; 12. a fixing groove; 13. a second protective cuff; 14. a mounting block; 15. a fixing bolt; 16. a rubber pad; 17. a mounting groove; 18. a reserved groove; 19. blocking; 20. an oil inlet hole; 21. and (5) installing a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to fig. 1-5, a detachable engine crankshaft comprises a first main journal 1, a crank 4 is fixedly connected to one side of the first main journal 1, a connecting journal 5 is fixedly connected between the crank 4, a second main journal 6 is fixedly connected to one side of the crank 4, a connecting plate 2 is welded to the other side of the first main journal 1, a flywheel 3 is arranged on the other side of the connecting plate 2, a mounting block 14 is fixedly connected to one side of the flywheel 3, a mounting clamping groove 21 is fixedly connected to the other side of the connecting plate 2, mounting grooves 17 are respectively formed in the mounting block 14 and the mounting clamping groove 21, a fixing bolt 15 is arranged in the mounting groove 17, and a rubber pad 16 is arranged at the bottom end outside the fixing bolt 15;

the mounting block 14 is fixed in the mounting clamping groove 21 through the fixing bolt 15 and the mounting groove 17, and the rubber pad 16 is arranged between the fixing bolt 15 and the mounting clamping groove 21;

specifically, as shown in fig. 1, 3 and 5, when the crankshaft needs to be disassembled, the fixing bolt 15 is screwed from the inside of the mounting groove 17 to enable the mounting block 14 to lose the fixing, and when the mounting block 14 is not fixed, the connecting plate 2 and the first main journal 1 can be taken away from one side of the flywheel 3, so that the disassembly of the crankshaft can be realized, a rubber pad 16 is arranged between the fixing bolt 15 and the mounting clamping groove 21, and the rubber pad 16 can prevent the fixing bolt 15 from being rusted and blocked in the inside of the mounting groove 17 and can also prevent the fixing bolt 15 from being accidentally separated from the inside of the mounting groove 17.

Example 2: the bottom end outside the crank 4 is provided with a balance weight 8, one end inside the second main journal 6 is provided with a reserved groove 18, the other end of the reserved groove 18 is provided with an oil inlet hole 20, the reserved groove 18 and the oil inlet hole 20 are internally provided with a block 19, the other end of the block 19 is embedded in the oil inlet hole 20, and one end of the block 19 is arranged in the reserved groove 18;

specifically, as shown in fig. 1 and fig. 4, the balance weight 8 outside the crank 4 increases the power of the crank, so that the performance of the device can be further exerted, the blocking piece 19 is arranged inside the oil inlet 20, the blocking piece 19 can prevent dust and impurities from entering the oil inlet 20 to cause the internal blocking of the oil inlet 20, when the oil inlet 20 is needed, the blocking piece 19 is pulled out from the oil inlet 20, and the reservation groove 18 can prevent the blocking piece 19 from protruding to influence the use.

Example 3: the connecting shaft neck 5 is provided with a first protective hoop 7 at one end, a second protective hoop 13 is arranged at the other end of the first protective hoop 7, a limiting insert 9 is fixedly connected to the bottom and the top of the other end of the first protective hoop 7 respectively, a limiting groove 10 is formed in the bottom and the top of one end of the second protective hoop 13, a fixing groove 12 is formed in the limiting groove 10 and the limiting insert 9, a mounting bolt 11 is arranged in the fixing groove 12, the limiting insert 9 is embedded in the limiting groove 10, and the first protective hoop 7 and the second protective hoop 13 are mutually matched;

specifically, as shown in fig. 1 and 2, the first and second ferrules 7 and 13 are fitted over both ends of the outside of the connection journal 5, the stopper insert 9 is inserted into the inside of the stopper groove 10 while the first and second ferrules 7 and 13 are fitted, and then the first and second ferrules 7 and 13 are fixed to the outside of the connection journal 5 while the mounting bolts 11 are screwed into the inside of the fixing groove 12, so that the connection journal 5 can be prevented from being worn, the first and second ferrules 7 and 13 can be directly removed to be replaced when the first and second ferrules 7 and 13 are damaged, the entire crankshaft does not need to be replaced, the flexibility is high, and the cost can be reduced.

Working principle: when the crankshaft connecting device is used, the first protective hoop 7 and the second protective hoop 13 are sleeved at two ends of the outer part of the connecting shaft neck 5, the limiting plug 9 is embedded into the limiting groove 10 when the first protective hoop 7 and the second protective hoop 13 are sleeved, then the first protective hoop 7 and the second protective hoop 13 are fixed on the outer part of the connecting shaft neck 5 when the mounting bolt 11 is screwed into the inner part of the fixing groove 12, so that the connecting shaft neck 5 can be prevented from being worn, the balance weight 8 on the outer part of the crank 4 increases the power of the crankshaft, the device performance can be further exerted, the blocking piece 19 in the oil inlet hole 20 can be prevented from entering the oil inlet hole 20 to cause the blocking of the oil inlet hole 20, the blocking piece 19 can be pulled out from the inner part of the oil inlet hole 20 when the oil inlet hole 20 is needed, the first protective hoop 7 and the second protective hoop 13 can be directly replaced when the first protective hoop 7 and the second protective hoop 13 are damaged, the mounting bolt 15 is required to be removed from the inner part of the mounting groove 17 when the crankshaft is required to be detached, the mounting block 14 is lost, and the mounting block 14 is required to be removed from the inner part of the fixing groove 17, and the mounting block 14 is required to be removed from the inner part of the crankshaft, and the main shaft 2 can be detached from the main shaft 2, and the crankshaft can be detached from one side, and the main shaft can be detached from the main shaft 3.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Claims

1. A disassembled engine crankshaft comprising a first main journal (1), characterized in that: one side fixedly connected with crank (4) of first main journal (1), fixedly connected with connecting axle journal (5) between crank (4), one side fixedly connected with second main journal (6) of crank (4), the opposite side welding of first main journal (1) has connecting plate (2), connecting plate (2) opposite side is provided with flywheel (3), flywheel (3) one side fixedly connected with installation piece (14), the opposite side fixedly connected with installation draw-in groove (21) of connecting plate (2), installation groove (17) have been seted up respectively to the inside of installation piece (14) and installation draw-in groove (21), the inside of installation groove (17) is provided with fixing bolt (15), the bottom of fixing bolt (15) outside is provided with rubber pad (16).

2. A removable engine crankshaft as set forth in claim 1 wherein: the installation block (14) is fixed in the installation clamping groove (21) through the fixing bolt (15) and the installation groove (17), and the rubber pad (16) is arranged between the fixing bolt (15) and the installation clamping groove (21).

3. A removable engine crankshaft as set forth in claim 1 wherein: the novel crank is characterized in that a balance block (8) is arranged at the bottom end of the outer portion of the crank (4), a reserved groove (18) is formed in one end of the inner portion of the second main journal (6), an oil inlet (20) is formed in the other end of the reserved groove (18), and a blocking block (19) is arranged in the reserved groove (18) and the oil inlet (20).

4. A removable engine crankshaft as in claim 3, wherein: the other end of the blocking block (19) is embedded in the oil inlet hole (20), and one end of the blocking block (19) is arranged in the reserved groove (18).

5. A removable engine crankshaft as set forth in claim 1 wherein: the utility model discloses a connecting axle journal, including connecting axle journal (5), connecting axle journal, fixed slot (12) have been seted up to the inside of limit slot (10) and limit plug (9), fixed slot (12) are provided with to the inside of fixed slot (12), fixed slot (11) are provided with mounting bolt (11) to the bottom and the top of first guard hoop (7) other end respectively fixedly connected with limit plug (9), limit slot (10) have been seted up to the bottom and the top of second guard hoop (13) one end.

6. A removable engine crankshaft as set forth in claim 5 wherein: the limiting plug block (9) is embedded in the limiting groove (10), and the first protective hoop (7) and the second protective hoop (13) are matched with each other.