CN103671027B - A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism - Google Patents
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism Download PDFInfo
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- CN103671027B CN103671027B CN201310483486.4A CN201310483486A CN103671027B CN 103671027 B CN103671027 B CN 103671027B CN 201310483486 A CN201310483486 A CN 201310483486A CN 103671027 B CN103671027 B CN 103671027B
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- 230000000737 periodic effect Effects 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 10
- 239000010687 lubricating oil Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The invention belongs to Compressor Technology field, relate to a kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism, the both arms that rocking arm the is fork-shaped layout structure of described limit rotation mechanism; two yokes of rocking arm split by the both sides of drive axis, and each of which is propped up and is each equipped with balance pin on yoke and connects with balance.When producing when the active force that balance is transmitted by connecting rod around drive axis rotation trend, the active force in opposite direction that the balance that two yokes of rocking arm are respectively subjected to derives from, active force is delivered at the hard point of axle box pin by only feeding back with the form of moment of torsion by this, thus can alleviate and even eliminate axle box pin along its axis periodic shock to axle box, on the other hand the total force (or moment) that balance derives from is shared by two yokes, that is be converted to the moment of flexure at each yoke root i.e. axle box pin hard point and be greatly decreased, therefore the present invention can improve the ability of limit rotation mechanism resisting fatigue destruction and can reduce noise.
Description
Technical field
The invention belongs to Compressor Technology field, relate to oilless (oil free) compressor, relate in particular to that there is limit favourable turn
The swash plate class oilless (oil free) compressor of structure.
Background technology
Chinese patent application CN103291588A and CN103291581A disclose that several to realize oil-free defeated
Going out to compress the swash plate class compressor of working medium, including clino-axis type compressor and oblique tray type compressor, above-mentioned patent carries
The compressor of confession includes piston, connecting rod, drive shaft and balance；For clino-axis type compressor, also include
One with the inclined shaft of drive shaft slanted arrangement, this inclined shaft is fastenedly connected with drive shaft or is integrated with drive shaft
Structure fabrication, described balance is rotatably mounted around on inclined shaft and is driven by inclined shaft；For inclined disc type pressure
Contracting machine, then include a driving dish, and this driving dish is fastenedly connected with drive shaft or is integrated with drive shaft
Structure fabrication, driving dish is provided with the driving plane of and drive shaft slanted arrangement, described balance directly or
Indirectly driven by the driving plane of this driving dish；Above-mentioned compressor occurred significantly to limit balance
Around the rotation of drive axis, be provided with a limit rotation mechanism, described limit rotation mechanism includes one
Balance pin, a rocking arm and an axle box pin, one end of described balance pin connects with rocking arm, balance pin another
One end connects with balance, and one end of described axle box pin connects with rocking arm, the other end of axle box pin connects with axle box,
Rocking arm can rotate around axle box pin axis, balance can rotate around balance pin axis.The casing of above-mentioned compressor is for leaving
Putting formula structure, its intracavity does not place liquid lubricant, has therefore avoided liquid lubricant in hydraulic shrinking machine and has flown
Spatter the phenomenon in inlet casing, additionally on the piston of compressor, be configured with the sealing ring that self-enrichment material is made, therefore
Can guarantee that the high-pressure working medium that compressor exports is substantially free of lubricating oil.
But, clino-axis type compressor that above-mentioned patent application is announced or oblique tray type compressor and their institutes
The limit rotation mechanism used, still has and improves further the place improved, and is mainly manifested in two aspects: 1) axle
Box pin has bigger periodic shock to axle box, and result causes impact noise and fatigue rupture；2) rocking arm
Bear bigger periodically variable Moment in one end of its axle box pin, easily cause rocking arm at this
There is fatigue rupture in place.It is true that according to the limit rotation mechanism of single arm type, its rocking arm and balance pin matching pair
Hard point owing to having a segment distance with the deviation of axle box pin axis, when the gas pressure of compressor by piston and
When connecting rod is delivered to balance, it is noted that balance and drive axis are oblique layout, therefore balance will necessarily be
At hard point, rocking arm is derived an active force rotated around drive axis, it is noted that this active force shows
So not over the hard point of axle box pin Yu axle box, therefore understood active force by mechanical knowledge and can equivalence move to
The hard point of axle box pin also derives additional bending moment simultaneously, it is seen that, periodically variable active force can be right
Axle box pin produces along the periodic push-and-pull action in axle box pin axis direction, and its consequence is to cause axle box pin to axle box
Shock, thus produce impact noise and fatigue rupture, the most periodically variable additional bending moment is completely by one
Individual rocking arm undertakes, and result can cause rocking arm at the hard point of axle box pin because load is relatively big and produce fatigue rupture.
Summary of the invention
The present invention provides a kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism, it is therefore intended that on the one hand reduce
The mechanical impact noise that limit rotation mechanism produces, on the other hand improves the ability that limit rotation mechanism resisting fatigue is destroyed.
To achieve these goals, the present invention provides a kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism,
Include piston, connecting rod, axle box, drive shaft and balance, described drive shaft is provided with inclined shaft or driving
Dish, described balance is driven by inclined shaft or driving dish, is additionally provided with controlling balance and rotates around drive axis
The limit rotation mechanism of angle amplitude, this limit rotation mechanism includes balance pin, rocking arm and axle box pin, described balance pin
One end connect with rocking arm, the other end of balance pin connects with balance, one end of described axle box pin is joined with rocking arm
Connect, the other end of axle box pin connects with axle box, and rocking arm can rotate around axle box pin axis, balance can be around balance pin
Axis rotates, it is characterised in that: the both arms that rocking arm the is fork-shaped layout structure of described limit rotation mechanism, rocking arm
Two yokes split by the both sides of drive axis, each of which prop up be each equipped with on yoke balance pin with
Balance connects.
On two yokes of above-mentioned rocking arm, the balance pin axis of configuration is in being coaxially disposed layout.
Above-mentioned balance pin axis and axle box pin axis are coplanar to arrange layout.
Above-mentioned balance pin axis and axle box pin axis are vertical setting layout.
Intersect perpendicular with drive axis of above-mentioned axle box pin axis arranges layout.
Above-mentioned balance pin axis, axle box pin axis, drive axis are intersected in a joint, described in cross
Point overlaps with the fixed point of balance working face；Or described balance pin axis, axle box pin axis, inclined shaft axle
Line is intersected in a joint, and described joint overlaps with the fixed point of balance working face.
Above-mentioned piston and connecting rod are fastenedly connected or are structure as a whole makings, described connecting rod and balance employing ball pivot
Connect and be connected.
Above-mentioned axle box pin is ball stud structure, and coordinates with the poroid slideway arranged on axle box.
Above-mentioned axle box pin is ball stud structure, and coordinates with slide block ball-joint, and described slide block and axle box are arranged
Poroid slideway coordinate.
Above-mentioned balance pin at least end head and the balance of uses bulb to contact and is connected.
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism of the present invention, owing to using double yoke limit rotation mechanism
And allow two yokes of rocking arm split by the both sides of drive axis, when balance is transmitted by connecting rod
Active force and produce around drive axis rotate trend time, the balance that two yokes of rocking arm are respectively subjected to
The active force in opposite direction (the most also deriving the counteracting force stoping and limiting balance to rotate) derived from, this
To active force by feeding back to the form of moment of torsion at the hard point of axle box pin, thus can alleviate and even eliminate axle box
Sell along its axis periodic shock to axle box, in other words decrease impact noise and reduce fatigue rupture
Chance；On the other hand, the total force (or moment) derived from due to balance is shared by two yokes, also
I.e. it is converted to the moment of flexure at each yoke root i.e. axle box pin hard point be greatly decreased, therefore limit can be improved
The ability that rotation mechanism resisting fatigue is destroyed.
Accompanying drawing explanation
Fig. 1 is that a kind of axle with fork arm type equal limit rotation mechanism oilless (oil free) compressor of the present invention measures intention；
Fig. 2 be compressor of the present invention be clino-axis type compressor fork arm type equal limit one embodiment of rotation mechanism mechanism
Schematic diagram；
Fig. 3 be one of the present invention have fork arm type equal limit rotation mechanism oilless (oil free) compressor be oblique tray type compressor embodiment
Axle measure intention；
Fig. 4 is the exploded perspective view of fork arm type equal of the present invention limit one embodiment of rotation mechanism；
Fig. 5 is the exploded perspective view of fork arm type equal of the present invention limit another embodiment of rotation mechanism；
Fig. 6 is the exploded perspective view of fork arm type equal of the present invention limit rotation mechanism further embodiment；
Fig. 7 is the exploded perspective view of fork arm type equal of the present invention limit another embodiment of rotation mechanism.
Detailed description of the invention
With specific embodiment, the invention will be further described below, sees Fig. 1 Fig. 7:
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism, including piston 1, connecting rod 2, axle box 3, drives
Moving axis 4 and balance 5, described drive shaft 4 is driven by motor and rotates around self drive axis O1,
Inclined shaft 6a (as shown in Figure 2) or driving dish 6b (as shown in Figure 3) it is provided with in drive shaft 4, described
Balance 5 is driven by inclined shaft 6a or driving dish 6b；It is additionally provided with controlling balance 5 around drive axis O1
The limit rotation mechanism of rotational angle amplitude, this limit rotation mechanism includes balance pin 7, rocking arm 8 and axle box pin 9, institute
The one end stating balance pin 7 connects with rocking arm 8, the other end of balance pin 7 connects with balance 5, described axle box
One end of pin 9 and rocking arm 8 connect, the other end of axle box pin 9 connects with axle box 3, and rocking arm 8 can be around axle box
Pin axis O2 rotates, balance 5 can rotate around balance pin axis O3, and wherein balance pin 7 can pass through balance
Bearing 7a and balance 5 are rotatably assorted, axle box pin 9 can be rotatably assorted with axle box 3 by axle box bearing 9a
(as shown in Figure 2), the characteristic of the present invention is: the both arms that rocking arm 8 is fork-shaped layout of described limit rotation mechanism
Structure (as shown in Figure 2), two yoke 8a of rocking arm 8 split by the both sides of drive axis O1, its
In each yoke 8a on be each equipped with balance pin 7 and connect with balance 5, it is obvious that due to the fact that and adopt
Limiting rotation mechanism and allowing two yoke 8a split by the both sides of drive axis O1 by double yoke 8a forms,
When producing when the active force that balance 5 is transmitted by connecting rod 2 around drive axis O1 rotation trend,
The active force in opposite direction that the balance 5 that two yoke 8a of rocking arm 8 afford respectively and simultaneously derives from is (same
Time also derive stop and limit the counteracting force that rotates around drive axis O1 of balance 5), this is to effect
Power will be fed back with the form of moment of torsion or is delivered to the hard point position of axle box pin 9 and axle box 3, with existing
Limit rotation mechanism and compressor thereof that CN103291588A with CN103291581A is proposed compare, on the one hand by
In limit rotation mechanism at the hard point position of axle box pin 9 and axle box 3 without the active force along axle box pin axis O2,
Thus can alleviate and even eliminate axle box pin 9 along its axis periodic shock to axle box 3, in other words reduce
Impact noise also reduces the chance of fatigue rupture；On the other hand, the total force derived from due to balance 5
(or moment) is shared by two yoke 8a, that is is converted to each the i.e. axle box pin 9 of yoke 8a root
Moment of flexure at hard point is greatly decreased, therefore can improve the ability that limit rotation mechanism resisting fatigue is destroyed.Need
Illustrate, when compressor use inclined shaft form layout time (as shown in Figure 2), the inclined shaft 6a of compressor with
Drive shaft 4 is fastenedly connected or inclined shaft 6a and drive shaft 4 are structure as a whole making, now inclined shaft axes O 4
Inclined with drive axis O1, optimised form is that inclined shaft axes O 4 is inclined with drive axis O1
The layout (as shown in Figure 2) intersected, its balance 5 of the compressor of clino-axis type is rotatably mounted around inclined shaft 6a
Above and moved by the driving of inclined shaft 6a；When compressor uses swash plate form layout (as shown in Figure 3),
The driving dish 6b of compressor is fastenedly connected with drive shaft 4 or driving dish 6b is structure as a whole with drive shaft 4
Make, now on driving dish 6b, be provided with the drive surface of a layout inclined with drive axis O1, institute
State drive surface directly drive balance 5 or indirectly drive balance 5 by a thrust bearing 6c.The present invention compresses
Machine either uses clino-axis type layout still to use inclined disc type layout, and the work that all can define balance 5 is put down
Face P (sees Fig. 2), and working face P can pass across or through the entity of balance 5 and can also pass across or through
The imaginary space of balance 5, but working face P follows balance 5 all the time moves together and keep relative to balance 5
Position and attitude constant, working face P and drive axis O1 are non-perpendicular and nonparallel oblique layout,
Obviously, the plane meeting above-mentioned condition has unlimited number of, it is therefore desirable to combines concrete condition and selectes one
Suitable plane is as the working face P of balance 5, it addition, the present invention is by working face P and drive axis
The intersection point Q of O1 is defined as the fixed point (seeing Fig. 2) of the working face P of balance 5.It is pointed out that
Balance pin 7 in the present invention both can be with balance 5 integral production, it is also possible to make with rocking arm 8 integrative-structure,
Certainly balance pin 7 is connecting with balance 5 and rocking arm 8 after can also being fabricated separately；Balance pin 7 and balance 5
And the situation that connects of rocking arm 8 can be following situation: balance pin 7 and balance 5 are fastenedly connected balance pin 7 simultaneously
Dynamic with rocking arm 8 be connected, balance pin 7 is dynamic with balance 5 while be connected, and balance pin 7 is tight with rocking arm 8
It is solidly connected.
The present invention is so that limit rotation mechanism can more cooperate in harmony with balance 5, and also to make system
Make, assemble and detect and can more simplify, can be by the balance pin axis of configuration on the two of rocking arm 8 yoke 8a
O3 is in being coaxially disposed layout (as shown in Figure 2), and now two yoke 8a even can be designed to symmetric configuration.
Similarly so that limit rotation mechanism can more cooperate in harmony with balance 5, the balance bearing pin in the present invention
Line O3 and axle box pin axis O2 are coplanar to arrange layout.If it addition, by balance pin axis O3 and axle box bearing pin
Line O2 is arranged to vertical arrangement also can improve the working regularity of limit rotation mechanism and balance 5.Certainly, if by axle
Intersect perpendicular with drive axis O1 of box pin axes O 2 arranges layout, then limit rotation mechanism and the work of balance 5
Make harmony more preferably；It addition, for oblique tray type compressor: if by balance pin axis O3, axle box pin axis O2,
Drive axis O1 is arranged to be intersected in a joint, and the working face P of this joint and balance 5
Fixed point Q overlaps, then the limit rotation mechanism of the present invention will have preferably kinetic characteristic and dynamic trait；For
Clino-axis type compressor: if being arranged to cross by balance pin axis O3, axle box pin axis O2, inclined shaft axes O 4
In a joint, and this joint overlaps with the fixed point Q of the working face P of balance 5, then the present invention
Limit rotation mechanism will have preferably kinetic characteristic and dynamic trait；When compressor is clino-axis type type of compressor
Time, if inclined shaft axes O 4, balance pin axis O3, axle box pin axis O2, drive axis O1 are arranged to
It is intersected in a bit, and this joint overlaps (as shown in Figure 2) with the fixed point Q of the working face P of balance 5,
Then limit rotation mechanism will have optimal kinetic characteristic and dynamic trait.
The present invention, in order to realize oil-free output squeezing working medium, will use open axle box 3 structure, this
Time axle box 3 will not place the lubricating oil of liquid, under this situation, if being fastenedly connected with connecting rod 2 by piston 1
Or be structure as a whole making, then piston 1 do not exist with the connection of connecting rod 2 needs lubrication motion coordinate,
The sealing ring that self-enrichment material makes additionally can be set easily on piston 1, in this context, will connect
Bar 2 and balance 5 coordinate employing ball-joint 10 to be connected (as shown in Figure 3) then can be easily
At their cooperation, place lubricating oil or lubricant grease, be processed as certainly helping and realize compressor
Oil-free exports；It is pointed out that when by connecting rod 2 and balance 5 when coordinating employing ball-joint to be connected,
The centre of sphere of each ball-joint is being optimal on the working face P being in balance 5.
The axle box pin 9 of the present invention can to make traditional bearing pin form (as shown in Figure 4), but in order to adapt to limit
The various error distortions of rotation mechanism, as foozle, rigging error, stress deformation error and temperature become deformation
Errors etc., can be set to ball stud structure 9b (as shown in Figure 5), now on axle box 3 by axle box pin 9
Being provided with the poroid slideway (not shown) matched with ball stud structure 9b, this poroid slideway can be
Circular duct, rectangle duct or other abnormity ducts, wherein with circular duct as optimum structure.The present invention
In order to improve the force-bearing situation of ball stud structure 9b, special slide block 9c and ball stud structure 9b can be set
Doing the dynamic cooperation (as shown in Figure 5) of ball-joint, now slide block 9c coordinates with the poroid slideway arranged on axle box 3
(not shown).It addition, use bulb 7b to connect the end head of at least one balance pin 7 and balance 5
Tactile cooperation can relax the limit making of rotation mechanism and assembly difficulty, and wherein bulb 7b can directly and be arranged on pendulum
Duct 5a on dish 5 connects (as shown in Figure 6) can also be by moving part 7c hole indirectly and on balance 5
Road 5a connects (as shown in Figure 7).
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism of the present invention, owing to using the limit of double yoke 8a to turn
Mechanism also allows two yoke 8a of rocking arm 8 split by the both sides of drive axis O1, when balance 5 is subject to
The active force that transmits to connecting rod 2 and produce around drive axis O1 rotate trend time, the two of rocking arm 8
Active force in opposite direction that the balance 5 that yoke 8a is respectively subjected to derives from (the most also derive prevention and
Limit balance 5 rotate counteracting force), this to active force by the form feedback effect with moment of torsion to axle box pin 9
Hard point at, thus can alleviate even eliminate axle box pin 9 right along its axis (i.e. axle box pin axis O2)
The periodic shock of axle box 3, in other words decreases impact noise and reduces the chance of fatigue rupture；Separately
On the one hand, the total force (or moment) derived from due to balance 5 is shared by two yoke 8a, that is conversion
At each yoke 8a root, i.e. moment of flexure at axle box pin 9 hard point is greatly decreased, therefore can improve limit
The ability that rotation mechanism resisting fatigue is destroyed.
Above-described embodiment is only some preferred embodiments of the present invention, limits the protection model of the present invention the most according to this
Enclose, therefore: the various equivalence changes that all structures according to the present invention, shape, principle are done, all should contain
Within protection scope of the present invention.
Claims (8)
1. there is an oilless (oil free) compressor for fork arm type equal limit rotation mechanism, including piston, connecting rod, axle box, driving
Axle and balance, described drive shaft is provided with inclined shaft or driving dish, and described balance is by inclined shaft or driving dish
Driving, be additionally provided with the limit rotation mechanism controlling balance around drive axis rotational angle amplitude, this limit turns
Mechanism includes balance pin, rocking arm and axle box pin, and one end of described balance pin and rocking arm connect, balance pin
The other end connects with balance, and one end of described axle box pin connects with rocking arm, the other end of axle box pin is joined with axle box
Connecing, rocking arm can rotate around axle box pin axis, balance can rotate around balance pin axis, it is characterised in that: described
The both arms that rocking arm the is fork-shaped layout structure of limit rotation mechanism, two yokes of rocking arm split at drive axis
By both sides, each of which is propped up and is each equipped with balance pin on yoke and connects with balance；Two forks of described rocking arm
On arm, the balance pin axis of configuration is in being coaxially disposed layout；Described balance pin axis is coplanar with axle box pin axis
Layout is set.
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism the most according to claim 1, its feature
It is: described balance pin axis and axle box pin axis are vertical setting layout.
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism the most according to claim 2, its feature
It is: intersect perpendicular with drive axis of described axle box pin axis arranges layout.
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism the most according to claim 3, its feature
It is: described balance pin axis, axle box pin axis, drive axis are intersected in a joint, described
Joint overlaps with the fixed point of balance working face；Or described balance pin axis, axle box pin axis, tiltedly
Axle axis is intersected in a joint, and described joint overlaps with the fixed point of balance working face.
A kind of oil-free with fork arm type equal limit rotation mechanism the most as claimed in any of claims 1 to 4
Compressor, it is characterised in that: described piston and connecting rod are fastenedly connected or are structure as a whole making, described company
Bar and balance use ball-joint to be connected.
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism the most according to claim 5, its feature
It is: described axle box pin is ball stud structure, and coordinates with the poroid slideway arranged on axle box.
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism the most according to claim 5, its feature
It is: described axle box pin is ball stud structure, and coordinates with slide block ball-joint, and described slide block and axle box set
The poroid slideway put coordinates.
A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism the most according to claim 5, its feature
It is: described balance pin at least end head and the balance of uses bulb to contact and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483486.4A CN103671027B (en) | 2013-10-15 | 2013-10-15 | A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483486.4A CN103671027B (en) | 2013-10-15 | 2013-10-15 | A kind of oilless (oil free) compressor with fork arm type equal limit rotation mechanism |
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| Publication Number | Publication Date |
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| CN103671027A CN103671027A (en) | 2014-03-26 |
| CN103671027B true CN103671027B (en) | 2016-10-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202602212U (en) * | 2012-05-31 | 2012-12-12 | 北京盈电电气有限公司 | Outer layer reinforced pre-twisted type strain clamp |
| CN202607795U (en) * | 2012-04-13 | 2012-12-19 | 佛山市恒力泰机械有限公司 | Novel machine frame structure for plate frame type brick molding machine |
| CN103291581A (en) * | 2013-06-15 | 2013-09-11 | 浙江鸿友压缩机制造有限公司 | Oblique-shaft type oilless compressor |
| CN103291588A (en) * | 2013-06-15 | 2013-09-11 | 浙江鸿友压缩机制造有限公司 | Rocker arm type rotation limiting mechanism and compressor with same |
| CN203594573U (en) * | 2013-10-15 | 2014-05-14 | 浙江鸿友压缩机制造有限公司 | Oil free compressor with fork-arm rotation limiting mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005273500A (en) * | 2004-03-23 | 2005-10-06 | Denso Corp | Ball joint of connecting rod |
-
2013
- 2013-10-15 CN CN201310483486.4A patent/CN103671027B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202607795U (en) * | 2012-04-13 | 2012-12-19 | 佛山市恒力泰机械有限公司 | Novel machine frame structure for plate frame type brick molding machine |
| CN202602212U (en) * | 2012-05-31 | 2012-12-12 | 北京盈电电气有限公司 | Outer layer reinforced pre-twisted type strain clamp |
| CN103291581A (en) * | 2013-06-15 | 2013-09-11 | 浙江鸿友压缩机制造有限公司 | Oblique-shaft type oilless compressor |
| CN103291588A (en) * | 2013-06-15 | 2013-09-11 | 浙江鸿友压缩机制造有限公司 | Rocker arm type rotation limiting mechanism and compressor with same |
| CN203594573U (en) * | 2013-10-15 | 2014-05-14 | 浙江鸿友压缩机制造有限公司 | Oil free compressor with fork-arm rotation limiting mechanism |
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| CN103671027A (en) | 2014-03-26 |
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Denomination of invention: An oil-free compressor with a fork arm type limiting mechanism Effective date of registration: 20231229 Granted publication date: 20161026 Pledgee: Wenling branch of the Industrial Commercial Bank of China Ltd. Pledgor: ZHEJIANG HONGYOU AIR COMPRESSOR MANUFACTURING Co.,Ltd. Registration number: Y2023980074319 |
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