CN109340080A - A kind of cam mechanism, piston and the magnetic refrigerator with it - Google Patents
A kind of cam mechanism, piston and the magnetic refrigerator with it Download PDFInfo
- Publication number
- CN109340080A CN109340080A CN201811257776.6A CN201811257776A CN109340080A CN 109340080 A CN109340080 A CN 109340080A CN 201811257776 A CN201811257776 A CN 201811257776A CN 109340080 A CN109340080 A CN 109340080A
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- Prior art keywords
- cam
- shaft
- axial displacement
- driving cam
- piston
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- 230000007246 mechanism Effects 0.000 title claims abstract description 53
- 238000006073 displacement reaction Methods 0.000 claims abstract description 56
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 244000309464 bull Species 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 13
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/01—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
- F04B49/123—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element
- F04B49/125—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element by changing the eccentricity of the actuation means, e.g. cams or cranks, relative to the driving means, e.g. driving shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/02—Single-track cams for single-revolution cycles; Camshafts with such cams
- F16H53/04—Adjustable cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/002—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of cam mechanism, piston and with its magnetic refrigerator.The cam mechanism includes: transmission mechanism, and the bearing block including shaft and fixed setting, the bearing block includes first bearing seat and second bearing seat, and the shaft is pivotably coupled between first bearing seat and second bearing seat；Driving cam, the driving cam, which is sheathed in shaft and is driven by shaft, to be rotated, and driving cam can be moved along the axis direction of shaft, the working face of the driving cam includes lug boss and recessed portion, and the sinking degree of the recessed portion is gradually changed along shaft extending direction；Axial displacement regulating mechanism, is connected with driving cam, for moving driving cam along the axis direction of shaft.Cam mechanism of the invention can be adjusted according to the needs the stroke of piston, so that the cooling capacity for enabling magnetic refrigerator to export is adjusted as needed, reduces and exports unnecessary cooling capacity, more energy saving.
Description
Technical field
The present invention relates to a kind of cam mechanisms, and in particular to one kind does reciprocating for band piston, makes piston rod
The transformable cam mechanism of movement travel and the piston with it.
Background technique
In magnetic refrigerating field, cam mechanism is widely used mechanism.In general, cam mechanism is used to drive
Piston rod does reciprocating type mobile.The stroke of cam be it is certain, the stroke of piston rod is also certain.In the mechanism course of work,
Piston stroke can not be changed.It is immutable for thus causing the cooling capacity of magnetic refrigerator output.In user's use process, by
Constantly change in ambient temperature, indoor number is also constantly changing, so the cooling capacity needed for often is continually changing.And it is normal
The cooling capacity that the magnetic refrigerator using cam mechanism of rule exports can not change.It thus can not meet the needs of user.Cam
Signal as shown in Figure 1 and Figure 2, working face be it is nonadjustable, driving the stroke that moves reciprocatingly of piston rod is also to immobilize
's.Under conditions of cam revolving speed is constant, the flow of the heat exchanging fluid of piston push is constant, therefore the cooling capacity exported is also
Constant.
Summary of the invention
Aiming at the problem that stroke that the piston rod in existing piston moves reciprocatingly immobilizes, the present invention provides a kind of convex
Mechanism is taken turns, and by cam mechanism driving, the piston of journey variable.
When the piston applications of the prior art are in magnetic refrigerator, magnetic refrigerator is had the following problems: magnetic refrigerator output
Cooling capacity can only be invariable, cannot adjust as needed；When institute's chilling requirement is smaller, magnetic refrigerator outputs a large amount of unnecessary
Cooling capacity, energy-saving effect is poor；When institute's chilling requirement is larger, magnetic refrigerator generates the requirement for not being able to satisfy cooling capacity output.Therefore, originally
Invention also provides a kind of magnetic refrigerator with above-mentioned piston.
The present invention uses following technological means:
The present invention provides a kind of cam mechanism, comprising:
Transmission mechanism, the bearing block including shaft and fixed setting, the bearing block include first bearing seat and the second axis
Seat is held, the shaft is pivotably coupled between first bearing seat and second bearing seat；
Driving cam, the driving cam, which is sheathed in shaft and is driven by shaft, to be rotated, and driving cam can be along shaft
Axis direction movement, the working face of the driving cam includes lug boss and recessed portion, the sinking degree edge of the recessed portion
Shaft extending direction gradually changes；
Axial displacement regulating mechanism, is connected with driving cam, for moving driving cam along the axis direction of shaft.
Further, the axial displacement regulating mechanism, including axial displacement adjusting slider and axial displacement adjust it is convex
Wheel, the axial displacement adjusting slider are set to the two sides of driving cam, and one side is connected with driving cam, and the other side is provided with
Fitting, the axial displacement adjust cam sleeve and are set to outside shaft, and one end is abutted with fitting, the other end and bearing block phase
Even, the axial displacement adjusting slider can the axis direction along shaft synchronous with driving cam move, but non-rotatable, the axis
Adjust cam to displacement but can not may be axially movable with shaft synchronous rotary.
Further, the fitting is sliding block roller.
Further, the point at the largest contours of the working face of the driving cam is along axial consistent extension, from work
The corner of camStart, each profile point of the working face of driving cam gradually changes in the axial direction.
Further, along shaft extending direction, the driving cam the first extreme position and the second extreme position it
Between move, the variation tendency of the sinking degree of the recessed portion is to gradually increase or be gradually reduced.
Further, further include anti-from shipping and reselling on another market, it is described it is anti-be fixed on bearing block from the one end shipped and resell on another market, the other end is from institute
It states and is passed freely through on axial displacement adjusting slider.
Further, the axial displacement adjusting cam is cylindric, and working face is with highest point separately
With the smooth surface of minimum point.
Further, the highest point flush with each other, and the minimum point flush with each other.
Further, the smooth surface includes 3 highest points and 3 minimum points.
Further, the axial displacement adjusts cam and is symmetrical arranged in the two sides of driving cam, and the axial direction of side
The minimum point that the axial displacement of highest point and the other side that displacement adjusts cam adjusts cam is oppositely arranged, the axial displacement of side
The highest point that the axial displacement of the minimum point and the other side that adjust cam adjusts cam is oppositely arranged.
Further, it is connected between the shaft and bearing block by thrust bearing, and shaft is carried out by the shaft shoulder
Axially position.
Further, the axial displacement is adjusted and is connected between cam and bearing block by thrust bearing, and by being somebody's turn to do
The flange surface of cam carries out axially position to it.
Further, it is connected between the axial displacement adjusting slider and driving cam by thrust bearing.
The present invention also provides a kind of pistons, including piston cylinder and piston rod, and the piston cylinder is fixed, the piston rod
Side matched with the inner wall of piston cylinder, the work face contact of the driving cam in the other side and above-mentioned cam mechanism, by institute
It states driving cam drive and does reciprocating.
Further, the stroke of piston rod is S1, the work when driving cam moves to the first extreme position
The stroke of piston rod is S2 when cam moves to the second extreme position, and with the rotation of shaft, the stroke of piston rod is by S1 to S2
Consecutive variations.
The present invention also provides a kind of magnetic refrigerators, including above-mentioned piston.
The invention has the following beneficial effects:
The recessed portion of the working curved surface of driving cam has the characteristic gradually changed along axial direction in cam mechanism of the invention,
Therefore, the external agency's stroke worked on the working curved surface of the driving cam can change.When the external agency is piston
When, realize the adjustable of piston rod stroke.When the piston applications are in magnetic refrigerator, enable the cooling capacity of magnetic refrigerator output
It is enough to adjust as needed, so that reducing magnetic refrigerator exports unnecessary cooling capacity, it is more energy saving.
Detailed description of the invention
Fig. 1 is the plane structure chart of existing cam；
Fig. 2 is the schematic perspective view of existing cam；
Fig. 3 is the sectional structure chart of cam mechanism and piston of the present invention；
Fig. 4 is the bottom view of cam mechanism and piston in the present invention；
Fig. 5 is the side view of cam mechanism and piston in the present invention；
Fig. 6 is the axonometric drawing of cam mechanism and piston in the present invention.
Marked in the figure: 1, first bearing seat；2, the first thrust bearing；3, axial displacement adjusts cam；4, sliding block roller；5,
Axial displacement adjusting slider；6, the second thrust bearing；7, driving cam；8,3rd bearing seat；9, prevent shipping and reselling on another market certainly；10, shaft；
11, second bearing seat；12, third thrust bearing；13, fixing bolt；14, piston rod；15, piston cylinder；16, upper contact point；17,
Lower contact point；18, motor connecting pin；19, upper end extreme position；20, lower end extreme position.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Aiming at the problem that stroke that the piston rod in existing piston moves reciprocatingly immobilizes, the present invention provides a kind of convex
Take turns mechanism.The mechanism includes: transmission mechanism, and the bearing block including shaft and fixed setting, the bearing block includes first bearing
Seat and second bearing seat, the shaft are pivotably coupled between first bearing seat and second bearing seat；Driving cam, it is described
Driving cam, which is sheathed in shaft and is driven by shaft, to be rotated, and driving cam can be moved along the axis direction of shaft, the work
The working face for making cam includes lug boss and recessed portion, and the sinking degree of the recessed portion is gradually changed along shaft extending direction；
Axial displacement regulating mechanism, is connected with driving cam, for moving driving cam along the axis direction of shaft.
The recessed portion of the working curved surface of driving cam has the characteristic gradually changed along axial direction in cam mechanism of the invention,
Therefore, the external agency's stroke worked on the working curved surface of the driving cam can change.When the external agency is piston
When, realize the adjustable of piston rod stroke.When the piston applications are in magnetic refrigerator, enable the cooling capacity of magnetic refrigerator output
It is enough to adjust as needed, so that reducing magnetic refrigerator exports unnecessary cooling capacity, it is more energy saving.
Embodiment one
The present embodiment provides a kind of cam mechanisms as shown in Figure 3.The mechanism specifically includes that top chock 1, the first thrust
Bearing 2, axial displacement adjust cam 3, sliding block roller 4, axial displacement adjusting slider 5, the second thrust bearing 6, driving cam 7,
3rd bearing seat 8, anti-9, shaft 10, second bearing seat 11, the third thrust bearing 12 of shipping and reselling on another market certainly.
First bearing seat (hereinafter referred to as top chock 1) and second bearing seat (hereinafter referred to as step 11) are fixed on cabinet
On, there are two the hole locations of installation bearing for processing thereon.Shaft 10 is installed therein in lesser hole location, the two passes through third
Thrust bearing 12 connects and carries out axially position to shaft 10 by the shaft shoulder, forms transmission shaft component.A pair of of axial displacement tune
Section cam 3 is installed therein in biggish hole location, and the two is connected and passed through the flange surface pair of the cam by the first thrust bearing 2
It carries out axially position.Then axial displacement adjusts cam 3 and can rotate around 10 axis of shaft, and immovable.The cam
For the cylindric of thin-walled, working surface is the smooth surface with 3 highest points, 3 minimum points (it should be noted that this hair
The working curved surface that bright middle axial displacement adjusts cam 3 can have any number of vertex and any number of bottom point, and the present invention is only
It is illustrated with the case where 3 highest points, 3 minimum points).It is mutually flat on the inner wall side of curved surface and outer wall side vertical direction
Together.A pair of of axial displacement adjusting slider 5 is connected to one with sliding block roller 4, forms a pair of of sliding block sub-assembly.Sliding block combination
The side of part is mounted on axial displacement by sliding block roller 4 and adjusts on the working face of cam 3.On the both sides of the face of driving cam 7
A 3rd bearing seat 8 is respectively secured, the two is connected with fixing bolt 13 and realizes fastening.The other side of sliding block sub-assembly passes through the
Two thrust bearings 6 and 3rd bearing seat 8 are connected with driving cam 7.Due to the effect of the second thrust bearing 6,7 He of driving cam
Sliding block sub-assembly 10 axis can be freely rotated around the shaft, and the two does not influence mutually.Piston cylinder 15 is fixed, piston rod 14
Side is matched with the inner wall of piston cylinder 15, the work face contact of the other side and driving cam 7, therefore it can be by 7 band of driving cam
It is dynamic to do reciprocating.It should be noted that the type of bearing is not particularly limited in the present invention, it is all to can be realized this hair
The connector of improving eyesight all belongs to the scope of protection of the present invention, and the present invention is only illustrated with the bearing of the concrete types such as thrust bearing
Explanation.
The structure of above-mentioned driving cam 7 is as shown in Figure 4.7 sets of driving cam drive rotation in shaft 10 and by shaft 10,
And it can be free to slide along 10 axis direction of shaft.Point near the largest contours of 7 working face of driving cam is consistent along axial direction
, it is identical.And from cam angleStart, each profile point of cam working face is gradually changed along axis direction.
Then in the both ends extreme position of cam working face, two different contour line C1, C2 are formd.The Initial Turning Angle of C2 is Φ,
Terminating corner isThe radial displacement difference of the minimized profile point of the minimized profile point and C2 of C1 is S.By diagram, work as work
Work is filled in the C1 curve of cam, if the stroke of piston rod is S1, when C2 curve of the pistons work in cam, if piston rod
Stroke be S2.Obvious S2 > S1 and S2-S1=S.I.e. cam is moved to the other end by one end, and the stroke changing value of piston is S.
Since the profile point of cam working face is to gradually change along axial direction, therefore the stroke of piston is also gradually as cam moves axially
Variation, the maximum value of variation is S.Therefore piston stroke can be adjusted freely within the scope of S.
As shown in figure 5, the position of piston cylinder is fixed, the axial displacement of lower end adjusts the bottom point and sliding block group of cam 3
The roller contact (descending contact point 17) of component, the vertex that the axial displacement of upper end adjusts cam 3 (are contacted with roller contact on i.e.
Point is 16).Obviously, driving cam 7 is in lower end extreme position at this time.And the work of piston rod 14 is on the working face of driving cam 7
Hold extreme position, stroke S1.The lower end of shaft 10 is motor connecting pin 18, for connecting stepper motor.
It is driven, is rotated synchronously by stepper motor as shown in fig. 6, the axial displacement of upper and lower ends adjusts cam 3.When axial position
When transposition section cam 3 turns over an angle, under the action of its working curved surface, axial displacement adjusting slider 5 is pushed, and then push
Driving cam 7 moves up a distance, and the stroke of piston rod 14 is also changed.Due to 5 He of axial displacement adjusting slider
There is thrust bearing to be isolated between driving cam 7, even therefore driving cam 7 also can conveniently, freely during atwirl
Ground axial movement.If uncontrollable axial shifting will occur for driving cam 7 in addition, rotation occurs for axial displacement adjusting slider 5
It is dynamic, it is clear that not meet requirement.To prevent 5 rotation of axial displacement adjusting slider, in the axial displacement tune of upper and lower ends
Left and right ends on section sliding block 5 are equipped with anti-from shipping and reselling on another market 9, and the other end is fixed on bearing block.When the axial displacement tune of lower end
Section cam 3 turns to its vertex and when sliding block roller 4 contacts, and rotates synchronously since the axial displacement at both ends adjusts cam 3, upper end
Axial displacement adjust cam 3 bottom point contacted with sliding block roller 4.At this point, driving cam 7 is in upper end extreme position 19.It is living
Stopper rod 14 works in the lower end extreme position 20 of cam working face, and stroke becomes S2.
Finally, freedom of the piston rod stroke by S1 to S2, consecutive variations, variation range S are realized.
In conclusion the present invention relates to the cam that active wheel profile surface can be changed, it is available by control cam axial movement
Required pistons work stroke；The invention further relates to the mechanisms for adjusting cam axial movement, flexibly can simply allow cam
Axial movement；Axial regulating mechanism uses flexible connecting structure, adjusts transmission irregularity between cam and mechanism, and no dry friction produces
It is raw.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.It is all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (16)
1. a kind of cam mechanism characterized by comprising
Transmission mechanism, the bearing block including shaft and fixed setting, the bearing block include first bearing seat and second bearing seat,
The shaft is pivotably coupled between first bearing seat and second bearing seat；
Driving cam, the driving cam, which is sheathed in shaft and is driven by shaft, to be rotated, and driving cam can be along the axis of shaft
The movement of line direction, the working face of the driving cam includes lug boss and recessed portion, and the sinking degree of the recessed portion is along shaft
Extending direction gradually changes；
Axial displacement regulating mechanism, is connected with driving cam, for moving driving cam along the axis direction of shaft.
2. cam mechanism according to claim 1, which is characterized in that the axial displacement regulating mechanism, including axial position
It moves adjusting slider and axial displacement adjusts cam, the axial displacement adjusting slider is set to the two sides of driving cam, one side
Be connected with driving cam, the other side is provided with fitting, and the axial displacement adjusts cam sleeve and is set to outside shaft, one end with
Fitting abuts, and the other end is connected with bearing block, and the axial displacement adjusting slider can the axis along shaft synchronous with driving cam
The movement of line direction, but non-rotatable, the axial displacement adjusts cam and but can not may be axially movable with shaft synchronous rotary.
3. cam mechanism according to claim 2, which is characterized in that the fitting is sliding block roller.
4. cam mechanism according to claim 1 or 2, which is characterized in that the most bull wheel of the working face of the driving cam
Point at exterior feature is along axial consistent extension, from the corner of driving camStart, each profile point of the working face of driving cam
It gradually changes in the axial direction.
5. cam mechanism according to claim 1 or 2, which is characterized in that along shaft extending direction, the driving cam exists
Moved between first extreme position and the second extreme position, the variation tendency of the sinking degree of the recessed portion be gradually increase or
It is gradually reduced.
6. cam mechanism according to claim 2, which is characterized in that it further include preventing shipping and reselling on another market certainly, it is described anti-from ship and resell on another market one
End is fixed on bearing block, and the other end is passed freely through from the axial displacement adjusting slider.
7. cam mechanism according to claim 2, which is characterized in that the axial displacement adjust cam be it is cylindric,
Working face is the smooth surface with highs and lows separately.
8. cam mechanism according to claim 7, which is characterized in that the highest point flush with each other, and the minimum point
Flush with each other.
9. cam mechanism according to claim 8, which is characterized in that the smooth surface include 3 highest points and 3 most
Low spot.
10. the cam mechanism according to any one of claim 7 to 9, which is characterized in that the axial displacement adjusts convex
Wheel is symmetrical arranged in the two sides of driving cam, and the axial displacement of side adjusts the highest point of cam and the axial displacement of the other side
The minimum point for adjusting cam is oppositely arranged, and the axial displacement of side adjusts the minimum point of cam and the axial displacement of the other side is adjusted
The highest point of cam is oppositely arranged.
11. cam mechanism according to claim 1, which is characterized in that pass through thrust shaft between the shaft and bearing block
Connection is held, and axially position is carried out to shaft by the shaft shoulder.
12. cam mechanism according to claim 2, which is characterized in that the axial displacement adjust cam and bearing block it
Between connected by thrust bearing, and axially position is carried out to it by the flange surface of the cam.
13. cam mechanism according to claim 2, which is characterized in that the axial displacement adjusting slider and driving cam
Between pass through thrust bearing connect.
14. a kind of piston, including piston cylinder and piston rod, which is characterized in that the piston cylinder is fixed, the piston rod
Side is matched with the inner wall of piston cylinder, the work in cam mechanism described in any one of the other side and claim 1 to 13
The work face contact of cam does reciprocating by driving cam drive.
15. piston according to claim 14, which is characterized in that the driving cam moves to living when the first extreme position
The stroke of stopper rod is S1, and the stroke of piston rod is S2 when the driving cam moves to the second extreme position, with the rotation of shaft
Turn, the stroke of piston rod is by S1 to S2 consecutive variations.
16. a kind of magnetic refrigerator, which is characterized in that including piston described in any one of claim 14 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257776.6A CN109340080B (en) | 2018-10-26 | 2018-10-26 | Cam mechanism, piston and magnetic refrigerator with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257776.6A CN109340080B (en) | 2018-10-26 | 2018-10-26 | Cam mechanism, piston and magnetic refrigerator with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109340080A true CN109340080A (en) | 2019-02-15 |
| CN109340080B CN109340080B (en) | 2024-04-26 |
Family
ID=65312032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811257776.6A Active CN109340080B (en) | 2018-10-26 | 2018-10-26 | Cam mechanism, piston and magnetic refrigerator with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340080B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909818A (en) * | 2022-07-18 | 2022-08-16 | 南方科技大学 | Tin separating and combining device for nuclear heat insulation demagnetization refrigeration system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06147106A (en) * | 1992-11-10 | 1994-05-27 | Seiko Seiki Co Ltd | Variable displacement type radial piston compressor |
| CN107503901A (en) * | 2017-07-25 | 2017-12-22 | 中国民航大学 | Two-sided concave grooved cam reciprocating pump |
| CN209012014U (en) * | 2018-10-26 | 2019-06-21 | 珠海格力电器股份有限公司 | A kind of cam mechanism, piston and the magnetic refrigerator with it |
-
2018
- 2018-10-26 CN CN201811257776.6A patent/CN109340080B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06147106A (en) * | 1992-11-10 | 1994-05-27 | Seiko Seiki Co Ltd | Variable displacement type radial piston compressor |
| CN107503901A (en) * | 2017-07-25 | 2017-12-22 | 中国民航大学 | Two-sided concave grooved cam reciprocating pump |
| CN209012014U (en) * | 2018-10-26 | 2019-06-21 | 珠海格力电器股份有限公司 | A kind of cam mechanism, piston and the magnetic refrigerator with it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909818A (en) * | 2022-07-18 | 2022-08-16 | 南方科技大学 | Tin separating and combining device for nuclear heat insulation demagnetization refrigeration system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109340080B (en) | 2024-04-26 |
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