CN208057575U - Hydraulic cylinder - Google Patents
Hydraulic cylinder Download PDFInfo
- Publication number
- CN208057575U CN208057575U CN201820521467.4U CN201820521467U CN208057575U CN 208057575 U CN208057575 U CN 208057575U CN 201820521467 U CN201820521467 U CN 201820521467U CN 208057575 U CN208057575 U CN 208057575U
- Authority
- CN
- China
- Prior art keywords
- oil
- buffering
- hydraulic cylinder
- gland
- oil circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003139 buffering effect Effects 0.000 claims abstract description 79
- 210000004907 gland Anatomy 0.000 claims abstract description 55
- 238000013016 damping Methods 0.000 claims description 36
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000000872 buffer Substances 0.000 abstract description 28
- 238000012360 testing method Methods 0.000 abstract description 21
- 238000012545 processing Methods 0.000 abstract description 8
- 238000004891 communication Methods 0.000 abstract description 7
- 238000004513 sizing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 117
- 239000010720 hydraulic oil Substances 0.000 description 15
- 239000007788 liquid Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a kind of hydraulic cylinder, is related to the technical field of hydraulic test, including cylinder body, gland, piston and piston rod；It further include the cushion collar being arranged on the piston rod；Cushion collar, piston, cylinder body inner wall and gland between form cushion chamber；Hydraulic cylinder further includes oil back chamber；It is provided with buffering oil circuit on gland, buffers oil communication cushion chamber and oil back chamber, and buffer in oil circuit and be provided with throttling set；Pressure tap is provided on gland, pressure tap is located at buffering oil communication, throttling set in pressure tap.The purpose of this utility model is to provide a kind of hydraulic cylinder, the buffer structure of the hydraulic cylinder is simple and compact-sized, and buffering test does not need additional processing pressure tap, can realize that buffering effect is linearly adjustable, convenient for calculating buffering effect and sizing volume production.
Description
Technical field
The utility model is related to technical field of hydraulic equipment, more particularly, to a kind of hydraulic cylinder.
Background technology
Currently, hydraulic cylinder buffer structure is mainly to be buffered with the cylinder bottom or gland of cushion hole using cushion collar
Region forms cushion chamber, is throttled by flat on buffer gap and cushion collar or oil groove, to reach buffering effect.
Although this mode is simple, part can not just be adjusted buffering effect once shaping, and it is difficult pre- that buffer gap, which is,
It first calculates accurate.This causes prodigious difficulty in practice.Buffering adjusts test mainly matching many kinds of parameters
Cushion collar and buffer gap, to which that group of parameter for choosing optimal carries out shaping.The adjustable buffer structure in application has very at present
It is more, such as adjustable cushion collar or trimmer valve etc..
But adjustable buffer structure is complicated mostly, system is huger, and buffer adjusting and can not calculate, it is not easy to shape
Volume production.
The information for being disclosed in the background technology part is merely intended to deepen the reason to the general background technology of the utility model
Solution, and it is known to those skilled in the art existing to be not construed as recognizing or imply that the information is constituted in any form
Technology.
Utility model content
The purpose of this utility model is to provide a kind of hydraulic cylinder, the buffer structure of the hydraulic cylinder is simple and structure
Compact, buffering test does not need additional processing pressure tap, can realize that buffering effect is linearly adjustable, convenient for calculate buffering effect and
Sizing volume production.
To achieve the above object, the utility model provides following technical scheme：
The utility model provides a kind of hydraulic cylinder, including cylinder body, gland, piston and piston rod；Further include being set in institute
State the cushion collar on piston rod；
The cushion collar, the piston, the cylinder body inner wall and the gland between form cushion chamber；
The hydraulic cylinder further includes oil back chamber；Buffering oil circuit, buffering oil communication institute are provided on the gland
Cushion chamber and oil back chamber are stated, and throttling set is provided in the buffering oil circuit；Pressure tap, the survey are provided on the gland
Hole and the buffering oil communication, the throttling set is pressed to be located in the pressure tap.
Further, the buffering oil circuit includes the first oil circuit and the second oil circuit；Delay with described first oil circuit one end
Chamber connection is rushed, the other end is connected to the throttling set；Second oil circuit one end is connected to the throttling set, the other end with
The oil back chamber connection.
Further, the throttling set is equipped with the oil-through hole for being connected to first oil circuit and second oil circuit, institute
The diameter for stating oil-through hole is less than the diameter of first oil circuit.
Further, the axis of the oil-through hole is overlapped with the axis of second oil circuit.
Further, a diameter of 0.7mm-2.0mm of the oil-through hole.
Further, the throttling set is the damping plug being detachably connected with the gland, and the oil-through hole is also set to
On the damping plug.
Further, the damping plug is threadedly coupled with the gland.
Further, it is provided with the plug being detachably connected with the gland in the pressure tap, for blocking the survey
Press hole.
Further, the damping plug is installed on the lower section in the pressure tap and positioned at the plug.
Further, oil pocket was formed between the plug and the damping plug, it is described to cross oil pocket connection first oil
Road and the oil-through hole.
Hydraulic cylinder provided by the utility model has the advantages that：
The utility model provides a kind of hydraulic cylinder, including cylinder body, gland, piston and piston rod；Further include being set in work
Cushion collar on stopper rod；Cushion collar, piston, cylinder body inner wall and gland between form cushion chamber；Hydraulic cylinder further includes
Oil back chamber；It is provided with buffering oil circuit on gland, buffers oil communication cushion chamber and oil back chamber, and buffer in oil circuit and be provided with throttling
Device；Pressure tap is provided on gland, pressure tap is located at buffering oil communication, throttling set in pressure tap.
Compared with prior art, hydraulic cylinder provided by the utility model increases the buffering oil circuit equipped with throttling set.
Using hydraulic cylinder provided by the utility model, when oil cylinder stretches out, hydraulic oil pushes entire piston element (comprising stopper rod, piston
Head, cushion collar etc.) it is moved along, when cushion collar enters in gland, due between the outer wall of cushion collar and the inner wall of gland
Gap very little, gland is equivalent to compared with buffering oil circuit with the gap oil circuit between piston and is blocked, cushion collar, piston, cylinder
A cushion chamber is formd between the inner wall and gland of body, by adjusting the hydraulic oil rate of outflow (liquid in cushion chamber
Resistance), compensator or trimmer pressure is formed in cushion chamber, reaches the buffering effect of deceleration.The knot that hydraulic oil passes through cushion collar itself in cushion chamber
The buffering oil circuit being arranged on structure (oil groove or flat etc.) and gland carries out throttling buffering, buffers oil communication cushion chamber and oil return
Chamber, and buffer in oil circuit and be provided with throttling set, throttling set is located in pressure tap, and throttling set may be implemented by pressure tap
The adjusting of restriction effect, and additional processing buffering test hole is not necessarily to when buffering test.Oil cylinder is not being disassembled, cushion collar is changed without
When, the mistake oil mass of this body structure of cushion collar immobilizes, and the size that throttling set crosses oil mass directly affects buffering effect.
The utility model provides a kind of hydraulic cylinder, and the buffer structure of the hydraulic cylinder is simple and compact-sized, can
Realize that buffering effect is linearly adjustable, convenient for calculating buffering effect and sizing volume production.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram for the hydraulic cylinder that the utility model embodiment provides；
Fig. 2 is the enlarged drawing of part A in Fig. 1；
Fig. 3 is the sectional view for the hydraulic cylinder that the utility model embodiment provides.
Icon：1- cylinder bodies；2- glands；3- pistons；4- cushion collars；5- cushion chambers；6- oil back chambers；7- buffers oil circuit；8- is saved
Flow device；9- pressure taps；10- plugs；11- crosses oil pocket；31- piston rods；The first oil circuits of 71-；The second oil circuits of 72-；81- is excessively oily
Hole.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific implementation mode is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, the hydraulic cylinder that the utility model embodiment provides is made below in conjunction with attached drawing detailed
It describes in detail bright.
The embodiments of the present invention provide a kind of hydraulic cylinder, including cylinder body 1, gland 2, piston 3 and piston rod 31；
It further include the cushion collar 4 being set on the stopper rod of piston 3；
Cushion chamber 5 is formed between cushion collar 4, piston 3, the inner wall of cylinder body 1 and gland 2 four；
Hydraulic cylinder further includes oil back chamber 6；Buffering oil circuit 7 is provided on gland 2, buffering oil circuit 7 is connected to cushion chamber 5 and returns
Oil pocket 6, and buffer in oil circuit 7 and be provided with throttling set 8；Pressure tap 9 is provided on gland 2, pressure tap 9 connects with buffering oil circuit 7
Logical, throttling set 8 is located in pressure tap 9.
Compared with prior art, the hydraulic cylinder that the embodiments of the present invention provide is increased equipped with throttling set 8
Buffer oil circuit 7.The hydraulic cylinder provided using the embodiments of the present invention, when oil cylinder stretches out, hydraulic oil pushes entire piston
3, piston rod 31, cushion collar 4 etc. are moved along, when cushion collar 4 enters in gland 2, due to the outer wall and gland of cushion collar 4
Gap very little between 2 inner wall, gland 2 are equivalent to compared with buffering oil circuit with the gap oil circuit between piston 3 and are blocked, and delay
A cushion chamber 5 is formd between punching set 4, piston 3, the inner wall of cylinder body 1 and gland 2 four, by adjusting the liquid in cushion chamber 5
The pressure oil rate of outflow (liquid resistance) forms compensator or trimmer pressure in cushion chamber 5, reaches the buffering effect of deceleration.Hydraulic oil is logical in cushion chamber 5
It crosses the buffering oil circuit 7 being arranged in the structure (oil groove or flat etc.) and gland 2 of cushion collar 4 itself and carries out throttling buffering, buffering
Oil circuit 7 is connected to cushion chamber 5 and oil back chamber 6, and buffers in oil circuit 7 and be provided with throttling set 8, and throttling set 8 is located at pressure tap 9
It is interior, the adjusting of 8 throttling buffering effect of throttling set may be implemented by pressure tap 9, and additional processing is not necessarily to when buffering test
Buffering test hole.Oil cylinder is not being disassembled, when being changed without cushion collar 4, the mistake oil mass of 4 body structures of cushion collar immobilizes, throttling
The size that device 8 crosses oil mass directly affects buffering effect.Hydraulic cylinder in the prior art needs when carrying out buffering test
Additionally in the big chamber end processing buffer instrument connection of hydraulic cylinder, inner-hole burr is difficult to clean off, and there are hidden danger.The implementation of the utility model
Pressure tap 9 is provided on the gland 2 for the hydraulic cylinder that example provides, pressure tap 9 is connected to buffering oil circuit 7.Carrying out buffering test
When need not be additionally on the big chamber end processing buffer instrument connection of hydraulic cylinder, gland 2 pressure tap 9 can be used as buffering test
Hole.
The embodiments of the present invention provide a kind of hydraulic cylinder, and the buffer structure of the hydraulic cylinder is simple and structure is tight
It gathers, can realize that buffering effect is linearly adjustable, convenient for calculating buffering effect and sizing volume production.
In the optional scheme of the present embodiment, further, buffering oil circuit 7 includes the first oil circuit 71 and the second oil circuit 72；
First oil circuit, 71 one end is connected to cushion chamber 5, and the other end is connected to throttling set 8；Second oil circuit, 72 one end connects with throttling set 8
Logical, the other end is connected to oil back chamber 6.
Divide for 72 two parts of the first oil circuit 71 and the second oil circuit, the first oil as shown in Figure 1, throttling set 8 will buffer oil circuit 7
Road 71 is specifically as follows L shape oil road, and 71 one end of the first oil circuit is connected to cushion chamber 5, and the other end is connected to throttling set 8；Second
72 one end of oil circuit is connected to throttling set 8, and the other end is connected to oil back chamber 6.
Throttling set 8 is described in detail below：
In the optional scheme of the present embodiment, further, throttling set 8 is equipped with the first oil circuit of connection 71 and the second oil
The oil-through hole 81 on road 72, the diameter of oil-through hole 81 are less than the diameter of the first oil circuit 71, and hydraulic oil is throttled by oil-through hole 81.
As shown in Figures 2 and 3,71 one end of the first oil circuit is connected to cushion chamber 5, excessively oily on the other end and throttling set 8
Hole 81 is connected to；Second oil circuit, 72 one end is connected to the oil-through hole 81 on throttling set 8, and the other end is connected to oil back chamber 6.Buffering oil
Road 7 is mainly throttled by the oil-through hole 81 on throttling set 8, and the diameter of oil-through hole 81 is less than the diameter of the first oil circuit 71, passes through
The diameter of oil-through hole 81 adjusts the hydraulic oil rate of outflow (liquid resistance) in cushion chamber 5, and compensator or trimmer pressure is formed in cushion chamber 5,
Reach the buffering effect of deceleration.
As shown in Figures 2 and 3, at least one embodiment, oil-through hole 81 includes the first part being connected to and second
Point, the diameter of first part is less than the diameter of the first oil circuit 71, and more than the diameter of second part so that hydraulic oil is passing through section
When flowing device 8, hydraulic oil preferably adjusts the hydraulic oil rate of outflow in cushion chamber 5 (liquid resistance) by throttling twice,
Cushion chamber 5 forms compensator or trimmer pressure, reaches the buffering effect of deceleration.
In the optional scheme of the present embodiment, further, the axis of oil-through hole 81 is overlapped with the axis of the second oil circuit 72.
As shown in Figures 2 and 3, the axis of oil-through hole 81 is overlapped with the axis of the second oil circuit 72, the hydraulic pressure in oil-through hole 81
Oil flows into oil back chamber 6 through the second oil circuit 72.
In the optional scheme of the present embodiment, further, a diameter of 0.7mm-2.0mm of oil-through hole 81.In order to more preferable
Ground adjusts the hydraulic oil rate of outflow (liquid resistance) in cushion chamber 5, forms compensator or trimmer pressure in cushion chamber 5, reaches adjusting buffering effect
Purpose, the diameter of oil-through hole 81 is specially 0.7mm-2.0mm, for example, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm,
1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2.0mm.
In at least one embodiment, 81 diameter of oil-through hole of throttling set 8 can be sizes, a variety of by replacing
The throttling set 8 of 81 diameter dimension of different oil-through holes determines optimal oil mass buffer parameter excessively, is finally reached buffering test sizing.
In the optional scheme of the present embodiment, further, it is provided in pressure tap 9 and is blocked up with what gland 2 was detachably connected
First 10.
As shown in Figure 1-Figure 3, plug 10 is provided in pressure tap 9, plug 10 is detachably connected with gland 2, and plug 10
It is tightly connected with gland 2.In at least one embodiment, plug 10 is threadedly coupled with gland 2, and plug 10 and gland 2
Periphery gap fluid sealant encapsulation process.
In the optional scheme of the present embodiment, further, throttling set 8 is the damping plug being detachably connected with gland 2,
Oil-through hole 81 is also set on damping plug.
In at least one embodiment, throttling set 8 is with gland 2 using the damping being detachably connected such as being threadedly coupled
Plug, oil-through hole 81 is set on damping plug, and the axis of oil-through hole 81 is overlapped with the axis of damping plug.
In the optional scheme of the present embodiment, further, damping plug is installed in pressure tap 9 and under plug 10
Side, and the axis of damping plug is parallel with the axis of pressure tap 9, so that damping plug can be replaced by pressure tap 9.
Need to be arranged multigroup parameter and a variety of gaps of matching in the prior art in order to realize that buffering is adjustable, when test needs more
Secondary dismounting cylinder replacing part debugging；Alternatively, buffering test needs in big chamber end additional processing buffering test hole, inner-hole burr is difficult
To remove, there are hidden danger；Or buffering adjustable structure is complicated, needs additional trimmer valve or buffering oil return pipe, needs space
Greatly；And buffering adjusting can not calculate, and be not easy to sizing volume production.The gland for the hydraulic cylinder that the embodiments of the present invention provide
It is provided with the pressure tap 9 for buffering test on 2, is convenient for buffering test, plug 10 and damping plug detachably connect with gland 2
It connects, and damping plug is located at the lower section of plug 10, the axis of damping plug is parallel with the axis of pressure tap 9 so that the utility model
The damping plug with different-diameter size oil-through hole 81 can be replaced in the case where not disassembling oil cylinder, to adjust buffering ginseng
Number.Damping plug with oil-through hole 81 is designed to replaceable, and greatly facilitates technology people without dismounting oil cylinder when debugging
Member.81 diameter of oil-through hole on damping plug is it is known that buffering Serial regulation, is convenient for calculating.The embodiments of the present invention carry
The hydraulic cylinder of confession need not additionally add trimmer valve or buffering oil return pipe, buffering adjustment structure are compact.It should be noted that
Plug 10 can also prevent damping plug from flying out gland 2, avoid security risk when damping plug is threadedly coupled with gland 2 failure.
In the optional scheme of the present embodiment, further, oil pocket 11 was formed between plug 10 and damping plug, and crossed oil pocket
11 the first oil circuits 71 of connection and oil-through hole 81.
In at least one embodiment, as shown in figure 3, the second oil circuit 72 in pressure tap 9, oil-through hole 81, cross oil pocket 11 with
And first the part of oil circuit 71 be inverted U shape channel, cross oil pocket 11 and be connected to the first oil circuit 71 and oil-through hole 81.
As shown in figure 3, when cushion collar 4 enters in gland 2, the gap oil circuit between gland 2 and piston 3 and buffering oil
Road is equivalent to and is blocked, and a cushion chamber 5 is formd between cushion collar 4, piston 3, the inner wall of cylinder body 1 and gland 2 four,
Hydraulic oil is by the structure (oil groove or flat etc.) of cushion collar 4 itself and with the radial clearance of the cooperation of gland 2 in cushion chamber 5
It buffers oil circuit 7 and carries out throttling buffering, by adjusting the hydraulic oil rate of outflow (liquid resistance) in cushion chamber 5, formed in cushion chamber 5 slow
Stamping press reaches the buffering effect of deceleration.Do not disassembling oil cylinder, when being changed without cushion collar 4,4 body structures of cushion collar it is excessively oily
Amount immobilizes, and the size for buffering the mistake oil mass of oil circuit 7 directly affects buffering effect.Oil-through hole 81 is increased thus, and is added
If damping plug, different damping plug oil-through holes 81 is reached by replacement damping plug and passes through damping plug to adjust buffering effect
Hydraulic oil returns to oil back chamber 6 and returns oil outlet, and oil cylinder structure of hydraulic is compact.
The adjustable different damping plug of oil cylinder is not dismounted to reach, oil-through hole 81 and damping plug mounting hole are designed to same oilhole
It is interior, and the plug 10 for adding included ED sealings is sealed, and this 10 pressure tap of plug takes into account the test mouth of buffering test simultaneously,
It ensure that and no longer need to separately processing buffer test mouth.
Hydraulic oil in cushion chamber 5 flows out through this body structure of cushion collar 4 and buffering oil circuit 7 flows out, to be adjusted
Section, is additionally arranged damping plug, wherein there are a variety of oil-through holes 81, such as diameter 1.0mm, 1.2mm, 1.5mm for damping plug), by more
A variety of damping plugs are changed, optimal oil mass buffer parameter excessively is determined, is finally reached buffering test sizing.
The hydraulic cylinder of the utility model is illustrated above, still, the utility model is not limited to above-mentioned specific
Embodiment can carry out various deformations or change without departing from the scope of the claims.The utility model packet
Include various modifications within the scope of the claims and change.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although utility model is described in detail with reference to foregoing embodiments, those skilled in the art should manage
Solution：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole skills
Art feature carries out equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution the utility model
The range of each embodiment technical solution.
Claims (10)
1. a kind of hydraulic cylinder, including cylinder body (1), gland (2), piston (3), piston rod (31)；Further include being set in the work
Cushion collar (4) on stopper rod (31)；It is characterized in that,
Buffering is formed between the cushion collar (4), the piston (3), the inner wall of the cylinder body (1) and the gland (2) four
Chamber (5)；
The hydraulic cylinder further includes oil back chamber (6)；Buffering oil circuit (7), the buffering oil circuit are provided on the gland (2)
(7) it is connected to the cushion chamber (5) and oil back chamber (6), and throttling set (8) is provided in the buffering oil circuit (7)；The gland
(2) pressure tap (9) is provided on, the pressure tap (9) is connected to the buffering oil circuit (7), and the throttling set (8) is located at institute
It states in pressure tap (9).
2. hydraulic cylinder according to claim 1, which is characterized in that the buffering oil circuit (7) includes the first oil circuit (71)
With the second oil circuit (72)；Described first oil circuit (71) one end is connected to the cushion chamber (5), the other end and the throttling set
(8) it is connected to；Described second oil circuit (72) one end is connected to the throttling set (8), and the other end is connected to the oil back chamber (6).
3. hydraulic cylinder according to claim 2, which is characterized in that the throttling set (8), which is equipped with, is connected to described the
The diameter of the oil-through hole (81) of one oil circuit (71) and second oil circuit (72), the oil-through hole (81) is less than first oil circuit
(71) diameter.
4. hydraulic cylinder according to claim 3, which is characterized in that the axis of the oil-through hole (81) and second oil
The axis on road (72) overlaps.
5. hydraulic cylinder according to claim 3, which is characterized in that a diameter of 0.7mm- of the oil-through hole (81)
2.0mm。
6. hydraulic cylinder according to claim 3, which is characterized in that the throttling set (8) is can with the gland (2)
The damping plug of dismantling connection, the oil-through hole (81) are set on the damping plug.
7. hydraulic cylinder according to claim 6, which is characterized in that the damping plug is threadedly coupled with the gland (2).
8. hydraulic cylinder according to claim 6, which is characterized in that the pressure tap (9) is provided with and the gland (2)
The plug (10) being detachably connected, for blocking the pressure tap (9).
9. hydraulic cylinder according to claim 8, which is characterized in that the damping plug is installed in the pressure tap (9)
And positioned at the lower section of the plug (10).
10. hydraulic cylinder according to claim 8, which is characterized in that shape between the plug (10) and the damping plug
At oil pocket (11) is crossed, the oil pocket (11) of crossing is connected to first oil circuit (71) and the oil-through hole (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820521467.4U CN208057575U (en) | 2018-04-12 | 2018-04-12 | Hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820521467.4U CN208057575U (en) | 2018-04-12 | 2018-04-12 | Hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057575U true CN208057575U (en) | 2018-11-06 |
Family
ID=63985631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820521467.4U Expired - Fee Related CN208057575U (en) | 2018-04-12 | 2018-04-12 | Hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116641939A (en) * | 2023-06-15 | 2023-08-25 | 中国人民解放军海军工程大学 | Hydro-cylinder buffer gear |
-
2018
- 2018-04-12 CN CN201820521467.4U patent/CN208057575U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116641939A (en) * | 2023-06-15 | 2023-08-25 | 中国人民解放军海军工程大学 | Hydro-cylinder buffer gear |
| CN116641939B (en) * | 2023-06-15 | 2024-03-08 | 中国人民解放军海军工程大学 | Hydro-cylinder buffer gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208057575U (en) | Hydraulic cylinder | |
| CN205479403U (en) | Throttle valve | |
| CN101943237A (en) | Double-overflow load limiting double-stage hydraulic damper | |
| CN209909248U (en) | Check valve for horizontal positive displacement heat exchanger | |
| CN107906236A (en) | Anti-leak speed limit relief arrangement | |
| CN204007759U (en) | A kind of sewage flowmeter with filtration capacity | |
| CN207866298U (en) | A kind of novel central symmetry multi-hole orifice flow throttling set | |
| CN207421424U (en) | Anti-leak speed limit relief arrangement | |
| CN206830133U (en) | A kind of ball-and-seat | |
| CN206943133U (en) | A kind of replaceable stacked group type antiblocking hydraulic damping hole | |
| CN206874914U (en) | A kind of motor-driven valve and the heat exchanger assembly with the motor-driven valve | |
| CN205938145U (en) | Intelligent pressure reducing valve | |
| CN204694301U (en) | A kind of differential pressure transmitter high and low pressure side conversion equipment system architecture | |
| CN204756032U (en) | Butt clamp butterfly check valve | |
| CN209325112U (en) | A kind of unidirectional speed regulation screw-in cartridge valve | |
| CN208546152U (en) | Well cementation self-oscillation float collar | |
| CN207246427U (en) | A kind of valve internal sealing structure | |
| CN101943239A (en) | Single-overflow load-limit double-step hydraulic damper | |
| CN206987780U (en) | Well head, which is adjusted, mixes controller | |
| CN206054910U (en) | A kind of anti-blocking acoustic filter and the electromagnetic valve with the anti-blocking acoustic filter | |
| CN211611782U (en) | Filtration formula relief pressure valve | |
| CN106762989B (en) | A kind of orifice valve of the adjustable damping of external | |
| CN209688243U (en) | A kind of practical reducing valve fixing device | |
| CN206478907U (en) | A kind of cut-off throttle valve | |
| CN205807624U (en) | A kind of HVAC terminal pressure bascule |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191204 Address after: 417000 No. 11 Xinping Street, Industrial Park, Loudi Economic Development Zone, Hunan Province Patentee after: Loudi Zhongxing Hydrautic Parts Co.,Ltd. Address before: 410000 31 industrial city, Changsha economic and Technological Development Zone, Hunan Patentee before: Sany Automobile Manufacturing Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |