CN207526801U - A kind of automatic reciprocating hydraulic cylinder - Google Patents
A kind of automatic reciprocating hydraulic cylinder Download PDFInfo
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- CN207526801U CN207526801U CN201721425925.6U CN201721425925U CN207526801U CN 207526801 U CN207526801 U CN 207526801U CN 201721425925 U CN201721425925 U CN 201721425925U CN 207526801 U CN207526801 U CN 207526801U
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Abstract
The utility model is related to a kind of automatic reciprocating hydraulic cylinders, including hydraulic cylinder, it is set in hydraulic cylinder and can be by hydraulic piston, liquid presses piston pole and the hydraulic direction-changing mechanism of hydraulic oil drives edge hydraulic cylinder inner wall axially reciprocating, liquid presses piston pole one end is located in hydraulic cylinder to be connect with hydraulic piston, and the other end stretches out hydraulic cylinder；Liquid presses piston pole can slide axially and form the mode of circumferential sealing and be equipped with hydraulic cylinder with merge, hydraulic cylinder is provided with oil return opening, the first oil inlet and the second oil inlet, and hydraulic piston is set between two oil inlets and hydraulic cylinder is divided into the first oiling chamber and the second oiling chamber；Hydraulic direction-changing mechanism includes commutation plunger rod, is arranged on the first oiling intracavitary and can be along the commutation sealing ring that commutation plunger rod moves reciprocatingly, the driving mechanism for driving commutation sealing ring with liquid presses piston pole cooperation and for the range positioner to commutation sealing ring positioning.
Description
Technical field
The utility model is related to a kind of automatic reciprocating hydraulic cylinders, belong to hydraulic transmission technology field.
Background technology
Hydraulic spraying machine is current most common flush coater, and the coating result quality which gushes out is very
Height, meanwhile, it can save spraying raw material using hydraulic spraying machine, in practice it has proved that, the spraying method phase acted on the gas of high pressure
Than, can save 10 to percent ten five spraying raw material.It is production that this, which is primarily due to air assisted airless spraying machine in work,
Raw spray pressure is compared with high-pressure airless method, hence it is evident that much smaller, the pressure ratio air spray finishing of the compressed air used in it
It is also much smaller；But the automatic reciprocating hydraulic cylinder structure of the existing hydraulic spraying machine in market is complicated, volume is big, production cost is high,
And the existing automatic reciprocating hydraulic cylinder commutation moment flush coater spray pressure of hydraulic spraying machine is not steady enough.
Utility model content
In order to solve the above problem present in the prior art, the utility model provides a kind of automatic reciprocating hydraulic cylinder,
The hydraulic cylinder structure is simple and compact, small, production cost is low, while has that commutation process stroke is short, commutating period short spray
Apply the advantages of pressure is steady.
The technical solution of the utility model is as follows：
A kind of automatic reciprocating hydraulic cylinder including hydraulic cylinder, is set in the hydraulic cylinder and can be driven by hydraulic oil
Along the hydraulic piston, liquid presses piston pole and hydraulic direction-changing mechanism of hydraulic cylinder inner wall axially reciprocating, the liquid presses piston pole
One end is located in hydraulic cylinder to be connect with hydraulic piston, and the other end stretches out hydraulic cylinder；The liquid presses piston pole can be in an axial direction
It is slidably matched and forms the mode of circumferential sealing and hydraulic cylinder is equipped with, the hydraulic cylinder is provided with oil return opening, first
Oil inlet and the second oil inlet, the hydraulic piston are set between two oil inlets and by the hydraulic cylinder from bottom to up
It is divided into the first oiling chamber and the second oiling chamber；The hydraulic direction-changing mechanism includes commutation plunger rod, is arranged on first oiling
Intracavitary simultaneously can drive commutation sealing ring along the commutation sealing ring that commutation plunger rod moves reciprocatingly, with liquid presses piston pole cooperation
Driving mechanism and for the range positioner to commutation sealing ring positioning, be provided with pressure release on the commutation plunger rod and lead to
Road and oil inlet passage, the oil return opening are connected by pressure release passage with the first oiling chamber, and first oil inlet passes through institute
Oil inlet passage is stated to connect with the first oiling chamber；The connecting of the oil inlet passage and the first oiling chamber, the pressure release is led to
The connection of road and the first oiling chamber is realized by the axial reciprocating mobile handoff for the sealing ring that commutates.
Further, the driving mechanism includes commutation shift fork, connecting rod and spring base A；The spring base A is located at institute
It states in the first cavity that liquid presses piston pole is formed with the hydraulic piston connecting pin, described connecting rod one end and the commutation shift fork
It is fixedly connected, the other end passes through the hydraulic piston and stretches into first cavity and is fixedly connected with the spring base A, the company
Extension bar is slidably matched with the hydraulic piston, has one second cavity, the commutation plunger rod lower end inside the commutation shift fork
It is fixedly connected with the hydraulic cylinder, the upper end passes through the commutation shift fork to enter in the second cavity and positioned with the stroke and fills
It puts and is fixedly connected, the range positioner includes commutation fixed seat and retaining spring, is provided in the commutation fixed seat
Radial through-hole, the retaining spring are set to radial through-hole, and the both ends of the retaining spring are fixedly connected with positioning ball, the commutation
The inner wall circumference of shift fork is provided with for the positioning ring groove for forming positioning mutually chimeric with positioning ball, and the positioning ring groove is in an axial direction
Two be set up in parallel.
Further, the pressure release passage includes interconnected A channel and D channels, the A channel and the oil return opening
Connection, the D channels are connected with the first oiling chamber；The oil inlet passage includes interconnected channel B and C-channel, institute
It states channel B to connect with first oil inlet, the C-channel is connected with the first oiling chamber.
Further, it is additionally provided with to prevent hydraulic piston with changing with spring base A cooperations in first cavity
The buffer spring of rigid contact is generated to shift fork.
Further, the hydraulic cylinder includes hydraulic connecting cylinder sleeve, hydraulic cylinder and commutation stationary housing, the hydraulic pressure
The both ends of cylinder barrel correspond to respectively to be fixedly connected with the hydraulic connecting cylinder sleeve and the commutation stationary housing, and the hydraulic piston is set
Be placed in the hydraulic cylinder, the hydraulic piston by can relatively activity in a manner of pass through the hydraulic connecting cylinder sleeve and circumference it is close
Envelope.
Further, first oil inlet and the second oil inlet are set to the connection outside the hydraulic cylinder by one
Pipe connects.
The utility model has the advantages that：
1st, a kind of automatic reciprocating hydraulic cylinder of the utility model, it is simple in structure and compact, it is small, production cost is low, simultaneously
Short with commutation process stroke, commutating period, short spray pressure was steady.
2nd, a kind of automatic reciprocating hydraulic cylinder of the utility model can be adjusted by controlling flow and the pressure of fluid pressure drive device
The motion frequency of hydraulic-driven is saved, the speed of oiling, and the company of pressure release passage and oil return opening are can control for hydraulic oil-filling pump
The connection of logical, oiling channel and the first oil inlet is switched by the axially reciprocating for the sealing ring that commutates to be realized, is realized continuous past
Compound driving work, overall structure integration degree is high, and failure rate is small.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of automatic reciprocating hydraulic cylinder in the utility model；
Fig. 2 is the enlarged diagram at Figure 1A；
Fig. 3 is the structure diagram of commutation shift fork in the utility model.
Reference numeral is expressed as in figure：
1st, hydraulic cylinder；11st, the first oiling chamber；12nd, the second oiling chamber；13rd, hydraulic connecting cylinder sleeve；14th, hydraulic cylinder；
15th, commutate stationary housing；16th, communicating pipe；2nd, hydraulic piston；3rd, liquid presses piston pole；31st, the first cavity；4th, the first oil inlet；5、
Second oil inlet；6th, hydraulic direction-changing mechanism；61st, commutate sealing ring；62nd, driving mechanism；621st, commutate shift fork；6211st, second is empty
Chamber；622nd, connecting rod；623rd, spring base A；624th, buffer spring；63rd, commutate plunger rod；631st, pressure release passage；6311st, A channel；
6312nd, D channels；632nd, oil inlet passage；6321st, channel B；6322nd, C-channel；64th, range positioner；641st, commutate fixed seat；
6411st, radial through-hole；642nd, retaining spring；643rd, ball is positioned；644th, positioning ring groove；7th, oil return opening.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1 to Fig. 3, a kind of automatic reciprocating hydraulic cylinder including hydraulic cylinder 1, is set in hydraulic cylinder 1 and can quilt
Hydraulic piston 2, liquid presses piston pole 3 and the hydraulic direction-changing mechanism 6 of 1 inner wall axially reciprocating of hydraulic oil drives edge hydraulic cylinder,
3 one end of liquid presses piston pole is located in hydraulic cylinder 1 to be connect with hydraulic piston 2, and the other end stretches out hydraulic cylinder 1；Hydraulic piston
Bar 3 can slide axially and form the mode of circumferential sealing and be equipped with hydraulic cylinder 1 with merge, and hydraulic cylinder 1 is provided with back
Hydraulic fluid port 7, the first oil inlet 4 and the second oil inlet 5, hydraulic piston 2 be set between two oil inlets and by hydraulic cylinder 1 from down toward
On be divided into the first oiling chamber 11 and the second oiling chamber 12；Hydraulic direction-changing mechanism 6 includes commutation plunger rod 63, is arranged on the first oiling
It can be changed in chamber 11 and along the commutation sealing ring 61 that commutation plunger rod 63 moves reciprocatingly, with the cooperation of liquid presses piston pole 3 for driving
Driving mechanism 62 to sealing ring 61 and the range positioner 64 for being positioned to commutation sealing ring 61, commutate plunger rod 63
On be provided with pressure release passage 631 and oil inlet passage 632, the oil return opening 7 passes through pressure release passage 631 and the first oiling chamber 11
Connection, first oil inlet 4 are connected by the oil inlet passage 632 with the first oiling chamber 11；Oil inlet passage 632 and
The connection of one oiling chamber 11, the connection of 631 and first oiling chamber 11 of pressure release passage are moved by the axial reciprocating for the sealing ring 61 that commutates
Dynamic switching is realized.
Further, driving mechanism 62 includes commutation shift fork 621, connecting rod 622 and spring base A623；Spring base A623
In the first cavity 31 formed positioned at liquid presses piston pole 3 and 2 connecting pin of hydraulic piston, 622 one end of connecting rod and commutation shift fork 621
Be fixedly connected, the other end passes through hydraulic piston 2 and stretches into the first cavity 31 and be fixedly connected with spring base A623, connecting rod 622 and
Hydraulic piston 2 is slidably matched, and 621 inside of commutation shift fork has one second cavity 6211, and commutate 63 lower end of plunger rod and hydraulic cylinder
Body 1 is fixedly connected, and the upper end passes through commutation shift fork 621 to enter in the second cavity 6211 and connect with the fixation of range positioner 64
It connects, range positioner 64 includes commutation fixed seat 641 and retaining spring 642, is provided in the fixed seat 641 that commutates radially logical
Hole 6411, retaining spring 642 are set to radial through-hole 6411, and the both ends of retaining spring 642 are fixedly connected with positioning ball 643, commutation
The inner wall circumference of shift fork 621 is provided with for positioning the mutually chimeric positioning ring groove 644 for forming positioning of ball 643, positioning ring groove 644
For two be set up in parallel in an axial direction.
Further, pressure release passage 631 includes interconnected A channel 6311 and D channels 6312, and A channel 6311 is with returning
Hydraulic fluid port 7 connects, and D channels 6312 are connected with the first oiling chamber 11；Oil inlet passage 632 includes interconnected channel B 6321 and C leads to
Road 6322, channel B 6321 are connected with the first oil inlet 4, and C-channel 6322 is connected with the first oiling chamber 11.
Further, it is additionally provided with to prevent hydraulic piston 2 and commutation with spring base A623 cooperations in the first cavity 31
Shift fork 621 generates the buffer spring 624 of rigid contact.
Further, hydraulic cylinder 1 includes hydraulic connecting cylinder sleeve 13, hydraulic cylinder 14 and commutation stationary housing 15, hydraulic pressure
The both ends of cylinder barrel 14 correspond to respectively to be fixedly connected with hydraulic connecting cylinder sleeve 13 and commutation stationary housing 15, and hydraulic piston 2 is set to
In hydraulic cylinder 14, hydraulic piston 2 that can pass through hydraulic connecting cylinder sleeve 13 and circumferential sealing in a manner of activity relatively.
Further, the first oil inlet 4 and the second oil inlet 5 are set to the communicating pipe 16 outside hydraulic cylinder 1 by one
Connection.
The operation principle of the utility model：
First oil inlet 4 is connected by the oil inlet passage 632 set on the plunger rod 63 that commutates with the first oiling chamber 11, and first
4 oil inlet of oil inlet, flows through channel B 6321 and C-channel 6322, eventually enters into the first oiling chamber 11, and oil mass is continuously increased so that
Hydraulic piston 2 moves upwards causes the oil in the second oiling chamber 12 to be sprayed out of second oil inlet 5 so as to generate pressure；At this point,
Commutation shift fork 621 remains stationary as, and connecting rod 622 and spring base A623 are remained stationary as with respect to hydraulic piston 2, when hydraulic piston 2
It moves upwards until hydraulic piston is contacted with spring base A623 generations, during continuing up, hydraulic piston 2 drives
Connecting rod 622 and commutation shift fork 621 generate upward movement, and commutation shift fork 621 drives commutation sealing ring 61 to move upwards, when
Commutation sealing ring 61 moves to when pressure release passage 631 is connected with oil return opening 7 and generates pressure release, at this point, 6322 and the first oiling chamber 11
Communication port blocked by commutation sealing ring 61, and oil flow to A channel 6311, is finally flowed out from oil return opening 7 from D channel 6312, until
This oil inlet process terminates.Carrying out oiling in second oil inlet 5 causes hydraulic piston 2 to move downward, i.e., can by driving mechanism 62
So that oiling process is toggled between the first oil inlet 4 and the second oil inlet 5, you can automatic to carry out oiling and oil suction
Process.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of automatic reciprocating hydraulic cylinder, it is characterised in that：Including hydraulic cylinder (1), be set in the hydraulic cylinder (1) and
It can be by the hydraulic piston (2), liquid presses piston pole (3) and hydraulic pressure of hydraulic oil drives edge hydraulic cylinder (1) inner wall axially reciprocating
Changement (6), described liquid presses piston pole (3) one end is located in hydraulic cylinder (1) to be connect with hydraulic piston (2), the other end
Stretch out hydraulic cylinder (1)；The liquid presses piston pole (3), which can slide axially, forms the mode and hydraulic cylinder of circumferential sealing with merging
Body (1) is equipped with, and the hydraulic cylinder (1) is provided with oil return opening (7), the first oil inlet (4) and the second oil inlet (5), institute
Hydraulic piston (2) is stated to be set between two oil inlets and the hydraulic cylinder (1) is divided into the first oiling chamber from bottom to up
(11) and the second oiling chamber (12)；The hydraulic direction-changing mechanism (6) including commutation plunger rod (63), be arranged on first oiling
In chamber (11) and can move reciprocatingly along the plunger rod (63) that commutates commutation sealing ring (61), with liquid presses piston pole (3) with sharing
In the driving mechanism (62) of driving commutation sealing ring (61) and for the range positioner to commutation sealing ring (61) positioning
(64), pressure release passage (631) and oil inlet passage (632) are provided on the commutation plunger rod (63), the oil return opening (7) passes through
Pressure release passage (631) is connected with the first oiling chamber (11), and first oil inlet (4) passes through the oil inlet passage (632)
It is connected with the first oiling chamber (11)；The connecting of the oil inlet passage (632) and the first oiling chamber (11), the pressure release
Channel (631) and the connection of the first oiling chamber (11) are realized by the axial reciprocating mobile handoff of the sealing ring that commutates (61).
2. a kind of automatic reciprocating hydraulic cylinder as described in claim 1, it is characterised in that：The driving mechanism (62) includes commutation
Shift fork (621), connecting rod (622) and spring base A (623)；The spring base A (623) positioned at the liquid presses piston pole (3) with
In the first cavity (31) that hydraulic piston (2) connecting pin is formed, described connecting rod (622) one end and the commutation shift fork
(621) it is fixedly connected, the other end passes through the hydraulic piston (2) and stretches into first cavity (31) and the spring base A
(623) it is fixedly connected, the connecting rod (622) is slidably matched with the hydraulic piston (2), and the commutation shift fork (621) is internal
With one second cavity (6211), commutation plunger rod (63) lower end is fixedly connected with the hydraulic cylinder (1), and the upper end is worn
The commutation shift fork (621) is crossed to be fixedly connected into the second cavity (6211) and with the range positioner (64), it is described
Range positioner (64) includes commutation fixed seat (641) and retaining spring (642), is set in the commutation fixed seat (641)
Radial through-hole (6411) is equipped with, the retaining spring (642) is set in radial through-hole (6411), the retaining spring (642)
Both ends be fixedly connected positioning ball (643), it is described commutation shift fork (621) inner wall circumference be provided with for positioning ball (643)
The mutually chimeric positioning ring groove (644) for forming positioning, the positioning ring groove (644) is two be set up in parallel in an axial direction.
3. a kind of automatic reciprocating hydraulic cylinder as claimed in claim 2, it is characterised in that：The pressure release passage (631) is including phase
Intercommunicated A channel (6311) and D channels (6312), the A channel (6311) connect with the oil return opening (7), the D channels
(6312) it is connected with the first oiling chamber (11)；The oil inlet passage (632) includes interconnected channel B (6321) and C
Channel (6322), the channel B (6321) connect with first oil inlet (4), the C-channel (6322) and first note
Oil pocket (11) connects.
4. a kind of automatic reciprocating hydraulic cylinder as claimed in claim 3, it is characterised in that：It is also set up in first cavity (31)
It is useful for preventing the buffering of hydraulic piston (2) and shift fork (621) the generation rigid contact that commutates with the spring base A (623) cooperation
Spring (624).
5. a kind of automatic reciprocating hydraulic cylinder as claimed in claim 4, it is characterised in that：The hydraulic cylinder (1) is including hydraulic pressure
Connect cylinder sleeve (13), hydraulic cylinder (14) and commutation stationary housing (15), the both ends of the hydraulic cylinder (14) it is corresponding respectively and
The hydraulic connecting cylinder sleeve (13) is fixedly connected with the commutation stationary housing (15), and the hydraulic piston (2) is set to described
In hydraulic cylinder (14), the hydraulic piston (2) that can pass through the hydraulic connecting cylinder sleeve (13) and circle in a manner of activity relatively
Week sealing.
6. a kind of automatic reciprocating hydraulic cylinder as claimed in claim 5, it is characterised in that：First oil inlet (4) and second
Oil inlet (5) is set to by one and connects the hydraulic cylinder (1) external communicating pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425925.6U CN207526801U (en) | 2017-10-31 | 2017-10-31 | A kind of automatic reciprocating hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425925.6U CN207526801U (en) | 2017-10-31 | 2017-10-31 | A kind of automatic reciprocating hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526801U true CN207526801U (en) | 2018-06-22 |
Family
ID=62571665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721425925.6U Active CN207526801U (en) | 2017-10-31 | 2017-10-31 | A kind of automatic reciprocating hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869444A (en) * | 2018-08-17 | 2018-11-23 | 浙江斯耐尔涂装设备制造有限公司 | A kind of tranquility environmental protection cylinder for pneumatic spray application machine |
| CN113124016A (en) * | 2021-04-19 | 2021-07-16 | 东北石油大学 | Automatic reciprocating hydraulic cylinder |
-
2017
- 2017-10-31 CN CN201721425925.6U patent/CN207526801U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869444A (en) * | 2018-08-17 | 2018-11-23 | 浙江斯耐尔涂装设备制造有限公司 | A kind of tranquility environmental protection cylinder for pneumatic spray application machine |
| CN108869444B (en) * | 2018-08-17 | 2024-11-01 | 浙江斯耐尔涂装设备制造有限公司 | A silence environmental protection cylinder for pneumatic flush coater |
| CN113124016A (en) * | 2021-04-19 | 2021-07-16 | 东北石油大学 | Automatic reciprocating hydraulic cylinder |
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