CN209458272U - A kind of split type crankshaft of belt air compressor machine - Google Patents
A kind of split type crankshaft of belt air compressor machine Download PDFInfo
- Publication number
- CN209458272U CN209458272U CN201920055796.9U CN201920055796U CN209458272U CN 209458272 U CN209458272 U CN 209458272U CN 201920055796 U CN201920055796 U CN 201920055796U CN 209458272 U CN209458272 U CN 209458272U
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- crank
- rod journal
- interconnecting piece
- air compressor
- journal
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Abstract
The utility model provides a kind of split type crankshaft of belt air compressor machine, belongs to air compressor machine accessory technical field.It solve the problems, such as the crankshaft of existing air compressor it is split type connection, structure be not sufficiently stable, service life it is short.The free end that rotary sleeve one and the rod journal one are arranged on rod journal one in the split type crankshaft of this belt air compressor machine is detachably circumferentially connected on the crank one, the limiting device one for preventing rod journal one to be axially disengaging crank one is provided between crank one and rod journal one, the free end that rotary sleeve two and the rod journal two are arranged on rod journal two is detachably circumferentially connected on the crank two, and the limiting device two for preventing rod journal two to be axially disengaging crank two is provided between crank two and rod journal two.The split type connection of the utility model and connection structure stabilization, long service life.
Description
Technical field
The utility model belongs to air compressor machine accessory technical field, is related to a kind of split type crankshaft of belt air compressor machine.
Background technique
Air compressor is a kind of equipment to compressed gas.Traditional air compressor drives power by motor,
Though taking electricity more convenient, being short of power is the weakness of conventional air compressor, is unable to reach more excellent compression effectiveness,
Occur a kind of belt-type single-stage air compressor in the market thus, in belt-type single-stage air compressor crankshaft application especially
It is important.Centrifugal force of the crankshaft by gyrating mass, the gas inertia power of mechanical periodicity and the collective effect of reciprocal inertia force, make song
The effect of bearing torsional load by bending.Therefore it is required that crankshaft has enough strength and stiffness, journal surface needs wear-resisting, work
It is even, balance is good.
Such as Chinese patent Patent No.: one kind split type crankshaft used for air compressor as described in " 201810092584.8 ", tool
Body structure includes crankshaft body, and crankshaft body point three parts form, and is specifically divided into left half axle, zigzag link block, right axle shaft, left
Semiaxis connects right axle shaft by zigzag link block, is wherein divided into input end of motor and left crankshaft again in left half axle, covers on left crankshaft
Have bearing and positioned by locating ring, be pressed with the left press fitting end of zigzag link block on the left crankshaft outside locating ring, left crankshaft and
The big cylindrical surface at left press fitting end is equipped with positioning key, is finally fixed in the outside at left press fitting end by gasket and screw；It is corresponding
It is divided into right connecting pin and right crankshaft again in right axle shaft, bearing is cased on right crankshaft and is positioned by locating ring, the right side outside locating ring
The right pressure side lid of zigzag link block is pressed on crankshaft, right crankshaft and the right big cylindrical surface for being pressed end are equipped with positioning key, finally
It is fixed in the outside at right press fitting end by gasket and screw；Bearing is connected with the piston rod of air compressor machine again, forms air compressor machine
Driving.
In such a configuration, connect between the left half axle, zigzag link block, the connection of right axle shaft three's fission and the three
Connect that structure is complicated, the left half axle and zigzag link block, right axle shaft and zigzag link block are detachably connected and fixed by positioning key
Position, and the bad assembly of positioning key in the left half axle and positioning key, right axle shaft and zigzag link block in zigzag link block, Z
Font link block and left half axle, right axle shaft are more unstable by press fitting end fixed connection structure, are easy to loosen, service life
It is short.
Summary of the invention
The purpose of this utility model be for the above-mentioned problems in the prior art, provide a kind of structure it is simple, can
The split type crankshaft of dismantling connection stable structure, belt air compressor machine with long service life.
The purpose of this utility model can be realized by the following technical scheme: a kind of split type crankshaft of belt air compressor machine,
Including crank one and the crank being spaced apart with crank one two, trunnion one, the crank are provided on the crank one
It is provided with crank throw between one and crank two, trunnion two, the trunnion one and trunnion are provided on the crank two
Both two axis overlappings and opposite distribution, which is characterized in that the crank throw further includes rod journal one, rod journal two and place
The oblique connection neck of structure is linked together between rod journal one, rod journal two and with rod journal one, rod journal two,
The rod journal one and the spaced and parallel distribution of rod journal two, rotary sleeve one is arranged on the rod journal one and should
The free end of rod journal one is detachably circumferentially connected on the crank one, between the crank one and rod journal one
It is provided with the limiting device one for preventing rod journal one to be axially disengaging crank one, is arranged with rotary sleeve on the rod journal two
Two and the free end of the rod journal two be detachably circumferentially connected on the crank two, the crank two and rod journal
The limiting device two for preventing rod journal two to be axially disengaging crank two is provided between two.
The split type crankshaft of this belt air compressor machine has on crank throw mainly by crank one, crank two and crank throw separately manufacturing
Rod journal one, rod journal two and oblique connection neck are an integral structure, and limit is arranged between the rod journal one and crank one
Position device one, and prevent rod journal one and crank one to be axially disengaging by limiting device one, connection structure is stablized；The pitman shaft
Limiting device two is set between neck two and crank two, and prevents rod journal two and crank two axial de- by limiting device two
From rod journal two and crank two can be made to be stably connected with.
In a kind of split type crankshaft of above-mentioned belt air compressor machine, the crank one include interconnecting piece one and with connection
Portion one is linked together and is used for the counterweight part one of rotating weight, has round inserting groove on the outer end face of the interconnecting piece one
One, the medium position of the slot bottom of the round inserting groove one has the limit hole one being square, the rod journal one
There is the grafting block one that is square on the end face of free end, when the free end of rod journal one be detachably circumferentially connected in it is described
The end face of the free end of the rod journal one is resisted against the slot bottom and the grafting block of the round inserting groove one when on crank one
A pair should be in limit hole one.The corresponding axial grafting of the grafting block one and limit hole one and the rwo by itself shape conduct
It limits and the rwo is circumferentially limited, position limiting structure is stablized.
In a kind of split type crankshaft of above-mentioned belt air compressor machine, the limiting device one includes with limit head
One bolt one and the compressed spring one for being set in bolt one offer connecting hole one, institute on the side wall of the interconnecting piece one
Threaded hole one and the threaded hole one and the axially opposing distribution of connecting hole one, the spiral shell are offered on the side wall for the grafting block one stated
Bolt one pass through the connecting hole of interconnecting piece one together spiral be connected in the threaded hole one of grafting block one and the compressed spring one one
Hold resilient abutment on the limit head one, the other end resilient abutment of compressed spring one is in the side of the interconnecting piece one
On wall.Setting compressed spring passes through one resilient abutment of compressed spring together can prevent the spiral in threaded hole one of bolt one from loosening,
Connection structure is relatively stable.
In a kind of split type crankshaft of above-mentioned belt air compressor machine, the crank two include interconnecting piece two and with connection
Portion two is linked together and is used for the counterweight part two of rotating weight, has round inserting groove on the outer end face of the interconnecting piece two
Two, the medium position of the slot bottom of the round inserting groove two has the limit hole two being square, the rod journal two
There is the grafting block two that is square on the end face of free end, when the free end of rod journal two be detachably circumferentially connected in it is described
The end face of the free end of the rod journal two is resisted against the slot bottom and the grafting block of the round inserting groove two when on crank two
Two is corresponding in limit hole two.The corresponding axial grafting of the grafting block two and limit hole two and the rwo by itself shape conduct
It limits and the rwo is circumferentially limited, position limiting structure is stablized.
In a kind of split type crankshaft of above-mentioned belt air compressor machine, the limiting device two includes with limit head
Two bolt two and the compressed spring two for being set in bolt two offer connecting hole two, institute on the side wall of the interconnecting piece two
Threaded hole two and the threaded hole two and the axially opposing distribution of connecting hole two, the spiral shell are offered on the side wall for the grafting block two stated
Bolt two passes through the connecting hole two of interconnecting piece two and spiral is connected in the threaded hole two of grafting block two and the compressed spring two one
Hold resilient abutment on the limit head two, the other end resilient abutment of compressed spring two is in the side of the interconnecting piece two
On wall.Setting compressed spring two simultaneously can prevent the spiral in threaded hole two of bolt two from loosening by two resilient abutment of compressed spring,
Connection structure is relatively stable.
In a kind of split type crankshaft of above-mentioned belt air compressor machine, have on the outer wall of the interconnecting piece one of the crank one
There is attachment base one, the trunnion one is connected in by welding on the attachment base one, the crank two
There is attachment base two, the trunnion two is connected in the attachment base two by welding on the outer wall of interconnecting piece two
On.The purpose being arranged in this way is to make crank one and trunnion one, and crank two and two connection structure of trunnion are more stable.
Compared with prior art, the advantages of the split type crankshaft of this belt air compressor machine are as follows: rod journal one and crank one can
Dismantling connection, rod journal two and crank two are detachably connected, and rotary sleeve one can be arranged on bar axle journal one, can be in bar axle journal two
On be arranged rotary sleeve two, rotary sleeve one is arranged on bar axle journal one rotary sleeve one can be used and connect with piston rod, in bar axle journal
It is arranged rotary sleeve two on two rotary sleeve two can be used and connect with piston rod, the frictional force of crankshaft and connecting rod can be effectively reduced, increases
Add the service life of crankshaft；Due to using split type crankshaft, crankshaft is oil free type structure, removes conventional crankshafts from and needs to safeguard guarantor
It supports；The utility model structure is simple, the split type connection of crankshaft and connection structure stabilization, long service life.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the split type crankshaft of this belt air compressor machine.
Fig. 2 is the schematic cross-sectional view of the split type crankshaft of this belt air compressor machine.
In figure, 1, trunnion one；2, trunnion two；3, rod journal one；4, rod journal two；5, oblique connection neck；6,
Rotary sleeve one；7, rotary sleeve two；8, interconnecting piece one；9, counterweight part one；10, grafting block one；11, head one is limited；12, bolt
One；13, compressed spring one；14, interconnecting piece two；15, counterweight part two；16, grafting block two；17, head two is limited；18, bolt two；
19, compressed spring two；20, attachment base one；21, attachment base two.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As depicted in figs. 1 and 2, the split type crankshaft of this belt air compressor machine mainly divides by crank one and with the interval of crank one
The crank two of cloth forms, and is provided with trunnion 1 on crank one, is provided with crank throw between crank one and crank two, on crank two
It is provided with trunnion 22, the overlapping of both trunnion 1 and trunnion 22 axis and opposite distribution, crank throw is mainly by rod journal
One 3, rod journal 24 and between rod journal 1, rod journal 24 and with rod journal 1, rod journal 24 connect
Oblique connection neck 5 composition being structure as a whole, rod journal 1 and the spaced and parallel distribution of rod journal 24, rod journal 1
On be arranged with rotary sleeve 1 and the free end of the rod journal 1 is detachably circumferentially connected on crank one, in practical manufacture
When, which is mainly linked together by interconnecting piece 1 and with interconnecting piece 1 and the counterweight part 1 for rotating weight forms,
There is round inserting groove one, the medium position of the slot bottom of round inserting groove one, which has, to be square on the outer end face of interconnecting piece 1
Limit hole one has the grafting block 1 being square on the end face of the free end of rod journal 1, when rod journal 1 from
The end face of the free end of the rod journal 1 is resisted against round grafting when being detachably circumferentially connected on the crank one by holding
The slot bottom of slot one and the grafting block 1, which correspond to, to be in limit hole one.
The limiting device for preventing rod journal 1 to be axially disengaging crank one is provided between crank one and rod journal 1
One.In actually manufacture, the specific embodiment of the limiting device one are as follows: mainly by the bolt 1 with limit head 1
It is formed with the compressed spring 1 for being set in bolt 1, offers connecting hole one, grafting block 1 on the side wall of interconnecting piece 1
Side wall on offer threaded hole one and the threaded hole one and the axially opposing distribution of connecting hole one, bolt 1 passes through interconnecting piece one
Spiral is connected in the threaded hole one of grafting block 18 connecting hole together and one end resilient abutment of the compressed spring 1 exists
On the limit head 1, the other end resilient abutment of compressed spring 1 is on the side wall of interconnecting piece 1.
The free end that rotary sleeve 27 and the rod journal 24 are arranged on rod journal 24 is detachably circumferentially connected in institute
On the crank two stated, in actually manufacture, which is mainly linked together and uses by interconnecting piece 2 14 and with interconnecting piece 2 14
It is formed in the counterweight part 2 15 of rotating weight, there is round inserting groove two, round inserting groove two on the outer end face of interconnecting piece 2 14
The medium position of slot bottom there is the limit hole two that is square, have on the end face of the free end of rod journal 24 and be square
Grafting block 2 16, the rod journal 24 when the free end of rod journal 24 is detachably circumferentially connected on the crank two
Free end end face be resisted against the round inserting groove two slot bottom and the grafting block 2 16 it is corresponding in limit hole two.
The limiting device for preventing rod journal 24 to be axially disengaging crank two is provided between crank two and rod journal 24
Two.In actually manufacture, the specific embodiment of the limiting device two are as follows: mainly by the bolt 2 18 with limit head 2 17
It is formed with the compressed spring 2 19 for being set in bolt 2 18, offers connecting hole two, grafting block two on the side wall of interconnecting piece 2 14
Threaded hole two is offered on 16 side wall and the threaded hole two and the axially opposing distribution of connecting hole two, bolt 2 18 pass through interconnecting piece
2 14 connecting hole two and spiral is connected in the threaded hole two of grafting block 2 16 and one end elasticity of the compressed spring 2 19 is supported
It leans against on the limit head 2 17, the other end resilient abutment of compressed spring 2 19 is on the side wall of interconnecting piece 2 14.
In actually manufacture, there is attachment base 1 on the outer wall of the interconnecting piece 1 of the crank one, trunnion 1 passes through
The mode of welding is connected on attachment base 1, has attachment base 2 21, trunnion on the outer wall of the interconnecting piece 2 14 of crank two
22 are connected in by welding on attachment base 2 21.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein
Described in specific embodiment be only the spirit of the present invention is given an example.The utility model technical field
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of split type crankshaft of belt air compressor machine, described including crank one and the crank being spaced apart with crank one two
It is provided with trunnion one (1) on crank one, crank throw is provided between the crank one and crank two, is set on the crank two
It is equipped with trunnion two (2), both the trunnion one (1) and trunnion two (2) axis are overlapped and opposite distribution, feature exist
In, the crank throw further include rod journal one (3), rod journal two (4) and in rod journal one (3), rod journal two
(4) the oblique connection neck (5) of structure, the connecting rod are linked together between and with rod journal one (3), rod journal two (4)
Axle journal one (3) and the spaced and parallel distribution of rod journal two (4), be arranged on the rod journal one (3) rotary sleeve one (6) and
The free end of the rod journal one (3) is detachably circumferentially connected on the crank one, the crank one and rod journal
The limiting device one for preventing rod journal one (3) to be axially disengaging crank one, the rod journal two are provided between one (3)
(4) free end that rotary sleeve two (7) and the rod journal two (4) are arranged on is detachably circumferentially connected in the crank two
On, the limit for preventing rod journal two (4) to be axially disengaging crank two is provided between the crank two and rod journal two (4)
Device two.
2. a kind of split type crankshaft of belt air compressor machine according to claim 1, which is characterized in that the crank one wraps
It includes interconnecting piece one (8) and the counterweight part one (9) of rotating weight, the interconnecting piece is linked together and be used for interconnecting piece one (8)
There is round inserting groove one, the medium position of the slot bottom of the round inserting groove one, which has, to be square on the outer end face of one (8)
Limit hole one, there is on the end face of the free end of the rod journal one (3) the grafting block one (10) being square, work as connecting rod
The free end of axle journal one (3) is detachably circumferentially connected in the end of the free end of the rod journal one (3) when on the crank one
Face is resisted against the slot bottom of the round inserting groove one and the grafting block one (10) is corresponding in limit hole one.
3. a kind of split type crankshaft of belt air compressor machine according to claim 2, which is characterized in that the limiting device
One includes having the bolt one (12) for limiting head one (11) and the compressed spring one (13) for being set in bolt one (12), described
Connecting hole one is offered on the side wall of interconnecting piece one (8), offered on the side wall of the grafting block one (10) threaded hole one and
The threaded hole one and the axially opposing distribution of connecting hole one, the bolt one (12) pass through the connecting hole of interconnecting piece one (8) together
Spiral is connected in the threaded hole one of grafting block one (10) and one end resilient abutment of the compressed spring one (13) is in the limit
In potential head portion one (11), the other end resilient abutment of compressed spring one (13) is on the side wall of the interconnecting piece one (8).
4. a kind of split type crankshaft of belt air compressor machine according to claim 3, which is characterized in that the crank two wraps
It includes interconnecting piece two (14) and the counterweight part two (15) of rotating weight, the connection is linked together and be used for interconnecting piece two (14)
There is round inserting groove two, the medium position of the slot bottom of the round inserting groove two has in side on the outer end face in portion two (14)
The limit hole two of shape has the grafting block two (16) being square on the end face of the free end of the rod journal two (4), when even
The free end of bar axle journal two (4) is detachably circumferentially connected in the free end of the rod journal two (4) when on the crank two
End face is resisted against the slot bottom of the round inserting groove two and the grafting block two (16) is corresponding in limit hole two.
5. a kind of split type crankshaft of belt air compressor machine according to claim 4, which is characterized in that the limiting device
Two include having the bolt two (18) for limiting head two (17) and the compressed spring two (19) for being set in bolt two (18), described
Connecting hole two is offered on the side wall of interconnecting piece two (14), offered on the side wall of the grafting block two (16) threaded hole two and
The threaded hole two and the axially opposing distribution of connecting hole two, the bolt two (18) pass through the connecting hole two of interconnecting piece two (14) simultaneously
Spiral is connected in the threaded hole two of grafting block two (16) and one end resilient abutment of the compressed spring two (19) is in the limit
In potential head portion two (17), the other end resilient abutment of compressed spring two (19) is on the side wall of the interconnecting piece two (14).
6. a kind of split type crankshaft of belt air compressor machine according to claim 5, which is characterized in that the crank one
There is attachment base one (20), the trunnion one (1) is connected in described by welding on the outer wall of interconnecting piece one (8)
Attachment base one (20) on, on the outer wall of the interconnecting piece two (14) of the crank two have attachment base two (21), the master
Axle journal two (2) is connected in by welding on the attachment base two (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920055796.9U CN209458272U (en) | 2019-01-14 | 2019-01-14 | A kind of split type crankshaft of belt air compressor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920055796.9U CN209458272U (en) | 2019-01-14 | 2019-01-14 | A kind of split type crankshaft of belt air compressor machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209458272U true CN209458272U (en) | 2019-10-01 |
Family
ID=68044427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920055796.9U Expired - Fee Related CN209458272U (en) | 2019-01-14 | 2019-01-14 | A kind of split type crankshaft of belt air compressor machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209458272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718844A (en) * | 2022-02-22 | 2022-07-08 | 安徽中麦亚机电科技有限公司 | Nested assembly type refrigeration compressor crankshaft and assembly method thereof |
-
2019
- 2019-01-14 CN CN201920055796.9U patent/CN209458272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718844A (en) * | 2022-02-22 | 2022-07-08 | 安徽中麦亚机电科技有限公司 | Nested assembly type refrigeration compressor crankshaft and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20220114 |