CN103233938A - Tilt cylinder and concrete pump truck tilting mechanism - Google Patents
Tilt cylinder and concrete pump truck tilting mechanism Download PDFInfo
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- CN103233938A CN103233938A CN2013101657938A CN201310165793A CN103233938A CN 103233938 A CN103233938 A CN 103233938A CN 2013101657938 A CN2013101657938 A CN 2013101657938A CN 201310165793 A CN201310165793 A CN 201310165793A CN 103233938 A CN103233938 A CN 103233938A
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- tilt cylinder
- cylinder
- tilt
- tube
- cylinder tube
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- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000010727 cylinder oil Substances 0.000 abstract 9
- 239000003921 oil Substances 0.000 abstract 5
- 238000004904 shortening Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a tilt cylinder for a concrete pump truck tilting mechanism. The tilt cylinder comprises a tilt cylinder oil cylinder barrel, a plunger rod matched with the tilt cylinder oil cylinder barrel, an oil cylinder cover and a tilt cylinder valve block, wherein the oil cylinder cover is arranged at one end of the tilt cylinder oil cylinder barrel far away from a ball choke plug and is in sealing connection with the plunger rod. The tilt cylinder valve block is arranged on the tilt cylinder oil cylinder barrel, and an oil inlet is arranged on the tilt cylinder valve block. A first channel and a second channel are arranged on the tilt cylinder oil cylinder barrel, the first channel is connected with the oil inlet and a rodless cavity of the tilt cylinder oil cylinder barrel, the second channel is connected with the rodless cavity and a rod cavity of the tilt cylinder oil cylinder barrel along with movement of the plunger rod, and a third channel connected with the oil inlet and the rod cavity of the tilt cylinder oil cylinder barrel is arranged on the tilt cylinder oil cylinder barrel. The tilt cylinder is reasonable and compact in structure and reliable to use, avoids shortening of service life of a concrete pump truck cantilever crane caused by overlarge vibration, improves whole concrete pump truck safety, and saves various costs and time.
Description
Technical field
The present invention relates to the concrete mixer technical field, more particularly, relate to a kind of tilt cylinder and concrete mixer swing mechanism.
Background technique
The machinery that concrete mixer system utilizes pressure that concrete is carried continuously along pipeline is made up of the pump housing and delivery pipe.Be divided into piston type, extruding type, hydraulic diaphragm formula by structural type.The pump housing is contained on the automobile chassis, remilitarizes the boom of scalable or flexion, just forms pump truck.Concrete mixer forms truck chassis transformation, and it is that motion and actuating unit, pumping and stirring apparatus, distribution device and some other auxiliary device are installed on the chassis.The power of concrete mixer sends the power of motor to the oil hydraulic pump group by the power transfer case, and oil hydraulic pump promotes piston and drives concrete pump work.Utilize boom and delivery pipe on the pump truck then, concrete is transported to certain height and distance.
The S valve is connected on the rocking arm of swing mechanism by S valve splined shaft, by swing mechanism the S valve is swung.During two tilt cylinder reciprocally swingings of concrete mixer swing mechanism, will inevitably cause vibration, influence concrete mixer car load mechanical property and Safety performance, can reduce greatly working life as concrete pump truck arm, therefore have influence on concrete mixer car load Safety performance, and also can reduce greatly the working life to the S valve, thereby increased follow-up maintenance expenses.
Therefore, how to avoid becoming the technical problem that those skilled in the art need to be resolved hurrily because shaking reduction and the concrete mixer car load Safety performance in excessive concrete pump truck arm working life of causing.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of tilt cylinder, to avoid because shaking reduction and the concrete mixer car load Safety performance in excessive concrete pump truck arm working life of causing;
Another object of the present invention is to provide a kind of concrete mixer swing mechanism with above-mentioned tilt cylinder.
For achieving the above object, the invention provides following technological scheme:
A kind of tilt cylinder, the swing mechanism for concrete mixer comprises:
Tilt cylinder cylinder tube, an end of described tilt cylinder cylinder tube are by silently shutoff of bulb, and described bulb silently is used for connecing with the tilt cylinder seat ball of described swing mechanism;
The plunger rod that cooperates with described tilt cylinder cylinder tube, described plunger rod is provided with the seal ring that cooperates with the inner wall sealing of described tilt cylinder cylinder tube near a described bulb end silently, and described plunger rod is provided with the spherojoint that the swing arm ball with described swing mechanism connects away from a described bulb end silently;
Be arranged at described tilt cylinder cylinder tube away from the oil cylinder cover of a described bulb end silently, described oil cylinder cover and described plunger rod are tightly connected;
Be arranged at the tilt cylinder valve piece on the described tilt cylinder cylinder tube, offer filler opening on the described tilt cylinder valve piece, offer first passage and second channel on the described tilt cylinder cylinder tube, described first passage is communicated with the rodless cavity of described filler opening and described tilt cylinder cylinder tube respectively, described second channel can be communicated with rodless cavity and the rod chamber of described tilt cylinder cylinder tube respectively along with the movement of described plunger rod, offers the third channel that is communicated with the rod chamber of described filler opening and described tilt cylinder cylinder tube respectively on the described tilt cylinder cylinder tube.
Preferably, in above-mentioned tilt cylinder, described first passage with respect to the more close described bulb of described second channel silently.
Preferably, in above-mentioned tilt cylinder, described first passage comprises:
Connect described tilt cylinder valve piece one side sidewall, and first crosspassage that is communicated with described filler opening, described first crosspassage passes through the plug shutoff away from an end of described filler opening;
Be opened on the described tilt cylinder cylinder tube, and first vertical passage that is communicated with the rodless cavity of described first crosspassage and described tilt cylinder cylinder tube respectively.
Preferably, in above-mentioned tilt cylinder, described second channel comprises:
Be opened on the described tilt cylinder cylinder tube, and the general passage hydraulic fluid port that is communicated with described filler opening;
Be opened on the described tilt cylinder cylinder tube, and second vertical passage that is communicated with the rodless cavity of described general passage hydraulic fluid port and described tilt cylinder cylinder tube respectively.
Preferably, in above-mentioned tilt cylinder, described third channel comprises:
Offer with described tilt cylinder cylinder tube on, and second crosspassage that is communicated with described general passage hydraulic fluid port;
Offer with described tilt cylinder cylinder tube on, and the 3rd vertical passage that is communicated with the rod chamber of described second crosspassage and described tilt cylinder cylinder tube respectively.
Preferably, in above-mentioned tilt cylinder, described second crosspassage, one end connects a side sidewall of described tilt cylinder cylinder tube, and by the plug shutoff.
Preferably, in above-mentioned tilt cylinder, described the 3rd vertical passage connects described tilt cylinder cylinder tube radially, and outside by the plug shutoff.
Preferably, in above-mentioned tilt cylinder, described tilt cylinder valve piece is anchored on the described tilt cylinder cylinder tube by screw.
Preferably, in above-mentioned tilt cylinder, described seal ring is copper wear ring, offers seal groove on the outer circumferential face of described copper wear ring.
A kind of concrete mixer swing mechanism comprises swing arm, tilt cylinder and tilt cylinder seat, and described swing arm is provided with S valve splined shaft, and described tilt cylinder is as above each described tilt cylinder, and described bulb silently connects with described tilt cylinder seat ball, and described spherojoint and described swing arm ball connect.
From above-mentioned technological scheme as can be seen, tilt cylinder provided by the invention, the pressure oil that is provided by oil hydraulic pump enters filler opening, pressure oil content three tunnel: the first passage of leading up to enters rodless cavity, the third channel of leading up to enters rod chamber, another road enters rod chamber by second channel.Wherein pressure oil enters rodless cavity by first passage and promotes plunger rod and slowly move forward, when plunger rod moved second channel, the pressure oil of first passage and second channel enters in the rodless cavity together, in this rodless cavity internal pressure rising constantly, make plunger rod accelerate to advance, because accelerate to advance, thus brought vibrations to strengthen, thus influence mixes vehicle performance and the Safety performance of earth pump truck.The present invention can enter sub-fraction pressure oil by third channel by the third channel that is communicated with rod chamber is set, and comes the impact of bumper post stopper rod when very fast the acceleration.
Tilt cylinder provided by the invention, compactness rational in infrastructure is used reliably, has avoided saving various costs because shaking reduction and the concrete mixer car load Safety performance in excessive concrete pump truck arm working life of causing, and has saved the time.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the tilt cylinder that Fig. 1 provides for the embodiment of the invention;
The structural representation of the concrete mixer swing mechanism that Fig. 2 provides for the embodiment of the invention.
Wherein, 1 is tilt cylinder valve piece; 2 is screw; 3 is the tilt cylinder cylinder tube; 4 is oil cylinder cover; 5 be bulb silently; 6 is seal ring; 7 is plunger rod; 8 is the tilt cylinder seat; 9 are swing arm; 10 are; 11 is first passage; 12 is second channel; 13 is filler opening; 14 is second crosspassage; 15 is the 3rd vertical passage.
Embodiment
Core of the present invention is to provide a kind of tilt cylinder, to avoid because shaking reduction and the concrete mixer car load Safety performance in excessive concrete pump truck arm working life of causing;
Another core of the present invention is to provide a kind of concrete mixer swing mechanism with above-mentioned tilt cylinder.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who obtains under the creative work prerequisite.
See also Fig. 1 and Fig. 2, the structural representation of the tilt cylinder that Fig. 1 provides for the embodiment of the invention; The structural representation of the concrete mixer swing mechanism that Fig. 2 provides for the embodiment of the invention.
The tilt cylinder that inventive embodiments provides, the swing mechanism for concrete mixer comprises tilt cylinder cylinder tube 3, plunger rod 7, oil cylinder cover 4 and tilt cylinder valve piece 1.
Wherein, an end of tilt cylinder cylinder tube 3 is by silently 5 shutoff of bulb, and bulb silently 5 is used for connecing with tilt cylinder seat 8 balls of swing mechanism, and bulb silently 5 normally is welded in the tilt cylinder cylinder tube 3 intensity of its structure increase oscillating oil cylinder with the mode of welding.
Plunger rod 7 cooperates with tilt cylinder cylinder tube 3, plunger rod 7 near bulbs silently an end of 5 be provided with the seal ring 6 that cooperates with the inner wall sealing of tilt cylinder cylinder tube 3, plunger rod 7 away from bulb silently an end of 5 be provided with the spherojoint that connects for swing arm 9 balls with swing mechanism.
Tilt cylinder valve piece 1 is arranged on the tilt cylinder cylinder tube 3, offer filler opening 13 on the tilt cylinder valve piece 1, offer first passage 11 and second channel 12 on the tilt cylinder cylinder tube 3, first passage 11 is communicated with the rodless cavity of filler opening 13 and tilt cylinder cylinder tube 3 respectively, second channel 12 can be communicated with rodless cavity and the rod chamber of tilt cylinder cylinder tube 3 respectively along with the movement of plunger rod 7, offers the third channel that is communicated with the rod chamber of filler opening 13 and tilt cylinder cylinder tube 3 respectively on the tilt cylinder cylinder tube 3.
Tilt cylinder provided by the invention, the pressure oil that is provided by oil hydraulic pump enters filler opening 13, pressure oil content three tunnel: the first passage 11 of leading up to enters rodless cavity, the third channel of leading up to enters rod chamber, another road enters rod chamber by second channel 12.Wherein pressure oil enters rodless cavity by first passage 11 and promotes plunger rod and slowly move forward, when plunger rod moved second channel 12, the pressure oil of first passage 11 and second channel 12 enters in the rodless cavity together, in this rodless cavity internal pressure rising constantly, make plunger rod accelerate to advance, because accelerate to advance, thus brought vibrations to strengthen, thus influence mixes vehicle performance and the Safety performance of earth pump truck.The present invention can enter sub-fraction pressure oil by third channel by the third channel that is communicated with rod chamber is set, and comes the impact of bumper post stopper rod when very fast the acceleration.
Tilt cylinder provided by the invention, compactness rational in infrastructure is used reliably, has avoided saving various costs because shaking reduction and the concrete mixer car load Safety performance in excessive concrete pump truck arm working life of causing, and has saved the time.
In the present invention's one specific embodiment, first passage 11 is with respect to second channel 12 more close bulbs silently 5.Can guarantee that like this first passage 11 is communicated with rodless cavity constantly, and second channel 12 has the two states that is communicated with rod chamber and rodless cavity.Distance between first passage 11 and the second channel 12 can be set according to actual needs.
In the present invention's one specific embodiment, first passage 11 comprises first crosspassage and first vertical passage.
Wherein, first crosspassage connects the sidewall of tilt cylinder valve piece 1 one sides, and is communicated with filler opening 13, and first crosspassage passes through the plug shutoff away from an end of filler opening 13, specifically this plug can with first crosspassage by being threaded.
First vertical passage is opened on the tilt cylinder cylinder tube 3, and is communicated with the rodless cavity of first crosspassage and tilt cylinder cylinder tube 3 respectively.In the present embodiment, first vertical passage is axial vertical with tilt cylinder cylinder tube 3, and the parallel to an axis of first crosspassage and tilt cylinder cylinder tube 3 arranges first crosspassage and first vertical passage like this and is more conducive to processing.
In the present invention's one specific embodiment, second channel 12 comprises general passage hydraulic fluid port and second vertical passage.
Wherein, the general passage hydraulic fluid port is opened on the tilt cylinder cylinder tube 3, and is communicated with filler opening 13, and second vertical passage is opened on the tilt cylinder cylinder tube 3, and is communicated with the rodless cavity of general passage hydraulic fluid port and tilt cylinder cylinder tube 3 respectively.General passage hydraulic fluid port tilt cylinder cylinder tube 3 axially vertical, second vertical passage is axial vertical with tilt cylinder cylinder tube 3.
In the present invention's one specific embodiment, third channel comprises second crosspassage 14 and the 3rd vertical passage 15.
Wherein, second crosspassage 14 offer with tilt cylinder cylinder tube 3 on, and be communicated with the parallel to an axis of second crosspassage 14 and tilt cylinder cylinder tube 3 with the general passage hydraulic fluid port.The 3rd vertical passage 15 offer with tilt cylinder cylinder tube 3 on, and be communicated with the rod chamber of second crosspassage 14 and tilt cylinder cylinder tube 3 respectively.The 3rd vertical passage 15 is axial vertical with tilt cylinder cylinder tube 3, second crosspassage 14 and the 3rd vertical passage 15 is set like this is more conducive to processing.
Second crosspassage, 14 1 ends connect a side sidewall of tilt cylinder cylinder tube 3, and by the plug shutoff.Namely an end of second crosspassage 14 is communicated with the general passage hydraulic fluid port, and the other end connects tilt cylinder cylinder tube 3, and 14 processing of convenient like this second crosspassage can be from the direct perforate of a side of tilt cylinder cylinder tube 3, and then uses the plug shutoff.The 3rd vertical passage 15 connects tilt cylinder cylinder tube 3 radially, and outside by the plug shutoff.The 3rd vertical passage 15 is passed by second crosspassage 14, and is criss-crossing.
In the present invention's one specific embodiment, tilt cylinder valve piece 1 is anchored on the tilt cylinder cylinder tube 3 by screw 2.The mounting type that it will be appreciated by persons skilled in the art that tilt cylinder valve piece 1 has multiple, connects just wherein a kind of optimal way by screw, and the present invention is not limited to screw and connects this mode.
In the present invention's one specific embodiment, seal ring 6 is copper wear ring, offers seal groove on the outer circumferential face of copper wear ring, and its sealing structure quality directly influences the service behaviour of tilt cylinder.
The concrete mixer swing mechanism that the embodiment of the invention provides comprises swing arm 9, tilt cylinder and tilt cylinder seat 8, and swing arm 9 is provided with S valve splined shaft 10, and wherein, tilt cylinder is the as above disclosed tilt cylinder of embodiment, and bulb silently 5 connects with tilt cylinder seat 8 balls, and spherojoint and swing arm 9 balls connect.The disclosed concrete mixer swing mechanism of the embodiment of the invention has above-mentioned tilt cylinder, therefore has all technique effects of above-mentioned tilt cylinder concurrently, and this paper repeats no more.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. tilt cylinder is used for the swing mechanism of concrete mixer, it is characterized in that, comprising:
Tilt cylinder cylinder tube (3), an end of described tilt cylinder cylinder tube (3) are by silently (5) shutoff of bulb, and described bulb silently (5) is used for connecing with tilt cylinder seat (8) ball of described swing mechanism;
The plunger rod (7) that cooperates with described tilt cylinder cylinder tube (3), described plunger rod (7) near described bulb silently an end of (5) be provided with the seal ring (6) that cooperates with the inner wall sealing of described tilt cylinder cylinder tube (3), described plunger rod (7) away from described bulb silently an end of (5) be provided with the spherojoint that swing arm (9) ball with described swing mechanism connects;
Be arranged at described tilt cylinder cylinder tube (3) away from the described bulb oil cylinder cover (4) of an end of (5) silently, described oil cylinder cover (4) is tightly connected with described plunger rod (7);
Be arranged at the tilt cylinder valve piece (1) on the described tilt cylinder cylinder tube (3), offer filler opening (13) on the described tilt cylinder valve piece (1), offer first passage (11) and second channel (12) on the described tilt cylinder cylinder tube (3), described first passage (11) is communicated with the rodless cavity of described filler opening (13) and described tilt cylinder cylinder tube (3) respectively, described second channel (12) can be communicated with rodless cavity and the rod chamber of described tilt cylinder cylinder tube (3) respectively along with the movement of described plunger rod (7), offers the third channel that is communicated with the rod chamber of described filler opening (13) and described tilt cylinder cylinder tube (3) respectively on the described tilt cylinder cylinder tube (3).
2. tilt cylinder as claimed in claim 1 is characterized in that, described first passage (11) is with respect to the more close described bulb of described second channel (12) silently (5).
3. tilt cylinder as claimed in claim 2 is characterized in that, described first passage (11) comprising:
Connect described tilt cylinder valve piece (1) one side sidewall, and first crosspassage that is communicated with described filler opening (13), described first crosspassage passes through the plug shutoff away from an end of described filler opening (13);
Be opened on the described tilt cylinder cylinder tube (3), and first vertical passage that is communicated with the rodless cavity of described first crosspassage and described tilt cylinder cylinder tube (3) respectively.
4. tilt cylinder as claimed in claim 2 is characterized in that, described second channel (12) comprising:
Be opened on the described tilt cylinder cylinder tube (3), and the general passage hydraulic fluid port that is communicated with described filler opening (13);
Be opened on the described tilt cylinder cylinder tube (3), and second vertical passage that is communicated with the rodless cavity of described general passage hydraulic fluid port and described tilt cylinder cylinder tube (3) respectively.
5. the tilt cylinder of stating as claim 4 is characterized in that, described third channel comprises:
Offer with described tilt cylinder cylinder tube (3) on, and second crosspassage (14) that is communicated with described general passage hydraulic fluid port;
Offer with described tilt cylinder cylinder tube (3) on, and the 3rd vertical passage (15) that is communicated with the rod chamber of described second crosspassage (14) and described tilt cylinder cylinder tube (3) respectively.
6. tilt cylinder as claimed in claim 5 is characterized in that, described second crosspassage (14) one ends connect a side sidewall of described tilt cylinder cylinder tube (3), and by the plug shutoff.
7. tilt cylinder as claimed in claim 5 is characterized in that, described the 3rd vertical passage (15) connects described tilt cylinder cylinder tube (3) radially, and outside by the plug shutoff.
8. as each described tilt cylinder of claim 1-7, it is characterized in that described tilt cylinder valve piece (1) is anchored on the described tilt cylinder cylinder tube (3) by screw (2).
9. as each described tilt cylinder of claim 1-7, it is characterized in that described seal ring (6) is copper wear ring, offers seal groove on the outer circumferential face of described copper wear ring.
10. concrete mixer swing mechanism, comprise swing arm (9), tilt cylinder and tilt cylinder seat (8), described swing arm (9) is provided with S valve splined shaft (10), it is characterized in that, described tilt cylinder is as each described tilt cylinder of claim 1-9, described bulb silently (5) connects with described tilt cylinder seat (8) ball, and described spherojoint and described swing arm (9) ball connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165793.8A CN103233938B (en) | 2013-05-06 | 2013-05-06 | A kind of tilt cylinder and concrete mixer swing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165793.8A CN103233938B (en) | 2013-05-06 | 2013-05-06 | A kind of tilt cylinder and concrete mixer swing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103233938A true CN103233938A (en) | 2013-08-07 |
| CN103233938B CN103233938B (en) | 2015-08-19 |
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ID=48881996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310165793.8A Expired - Fee Related CN103233938B (en) | 2013-05-06 | 2013-05-06 | A kind of tilt cylinder and concrete mixer swing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103233938B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015035903A1 (en) * | 2013-09-10 | 2015-03-19 | 三一汽车制造有限公司 | Wobbler mechanism and concrete pumping device |
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|---|---|---|---|---|
| GB455813A (en) * | 1935-08-06 | 1936-10-28 | Bendix Ltd | A new or improved valve system for controlling intermittent movement of a piston in a cylinder under fluid pressure |
| JPH01148105U (en) * | 1988-04-01 | 1989-10-13 | ||
| RU2215200C1 (en) * | 2002-02-11 | 2003-10-27 | Открытое акционерное общество "ГАЗ" | Vibrator |
| CN2687397Y (en) * | 2004-03-02 | 2005-03-23 | 陆平 | Buffer oil cylinder |
| CN200988483Y (en) * | 2006-09-11 | 2007-12-12 | 贵州枫阳液压有限责任公司 | Oil cylinder with support leg |
| CN201090555Y (en) * | 2007-07-12 | 2008-07-23 | 兖州山拖液压有限公司 | Double-acting unloading buffer oil cylinder |
| CN201212497Y (en) * | 2008-07-01 | 2009-03-25 | 徐州天地重型机械制造有限公司 | Concrete pump throttle-changing amortization double-acting tilt cylinder |
| CN101907110A (en) * | 2010-09-12 | 2010-12-08 | 韶关液压件厂有限公司 | Multi-damping-hole buffer sleeve hydraulic cylinder |
| CN102661297A (en) * | 2012-05-30 | 2012-09-12 | 江苏扬力数控机床有限公司 | Hydraulic system of numerical control turrent punch press and working method of hydraulic system |
-
2013
- 2013-05-06 CN CN201310165793.8A patent/CN103233938B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB455813A (en) * | 1935-08-06 | 1936-10-28 | Bendix Ltd | A new or improved valve system for controlling intermittent movement of a piston in a cylinder under fluid pressure |
| JPH01148105U (en) * | 1988-04-01 | 1989-10-13 | ||
| RU2215200C1 (en) * | 2002-02-11 | 2003-10-27 | Открытое акционерное общество "ГАЗ" | Vibrator |
| CN2687397Y (en) * | 2004-03-02 | 2005-03-23 | 陆平 | Buffer oil cylinder |
| CN200988483Y (en) * | 2006-09-11 | 2007-12-12 | 贵州枫阳液压有限责任公司 | Oil cylinder with support leg |
| CN201090555Y (en) * | 2007-07-12 | 2008-07-23 | 兖州山拖液压有限公司 | Double-acting unloading buffer oil cylinder |
| CN201212497Y (en) * | 2008-07-01 | 2009-03-25 | 徐州天地重型机械制造有限公司 | Concrete pump throttle-changing amortization double-acting tilt cylinder |
| CN101907110A (en) * | 2010-09-12 | 2010-12-08 | 韶关液压件厂有限公司 | Multi-damping-hole buffer sleeve hydraulic cylinder |
| CN102661297A (en) * | 2012-05-30 | 2012-09-12 | 江苏扬力数控机床有限公司 | Hydraulic system of numerical control turrent punch press and working method of hydraulic system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015035903A1 (en) * | 2013-09-10 | 2015-03-19 | 三一汽车制造有限公司 | Wobbler mechanism and concrete pumping device |
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| Publication number | Publication date |
|---|---|
| CN103233938B (en) | 2015-08-19 |
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Granted publication date: 20150819 |