CN102269147A - Actuating device of plunger in micro motor-driven ultrahigh-pressure hydraulic pump - Google Patents
Actuating device of plunger in micro motor-driven ultrahigh-pressure hydraulic pump Download PDFInfo
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- CN102269147A CN102269147A CN2011101868041A CN201110186804A CN102269147A CN 102269147 A CN102269147 A CN 102269147A CN 2011101868041 A CN2011101868041 A CN 2011101868041A CN 201110186804 A CN201110186804 A CN 201110186804A CN 102269147 A CN102269147 A CN 102269147A
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- plunger
- pressure hydraulic
- hydraulic pump
- miniature electric
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Abstract
The invention provides an actuating device of a plunger in a micro motor-driven ultrahigh-pressure hydraulic pump, belonging to the mechanical technical field, and solving problems of large volume and low transmission accuracy of the existing micro motor-driven ultrahigh-pressure hydraulic pump. For the actuating device of the plunger in the micro motor-driven ultrahigh-pressure hydraulic pump, the body of the micro motor-driven ultrahigh-pressure hydraulic pump is internally provided with an oil chamber; the plunger is positioned in the oil chamber; the actuating device comprises an actuating motor which is fixedly connected to the body; a transmission structure which can butt against the plunger at interval along with the rotation of a rotary shaft is arranged between the rotary shaft and the plunger of the actuating motor; and a spring through which the plunger is leaned against the transmission structure closely is arranged between the plunger and the body. The device provided by the invention has the advantages of small volume, high transmission accuracy and the like.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of miniature electric ultrahigh-pressure hydraulic pump, the drive unit of plunger in particularly a kind of miniature electric ultrahigh-pressure hydraulic pump.
Background technique
At present, aluminium-plastic composite pipe or thin-wall stainless steel mostly are to adopt threaded fitting structural type when it interconnects, use the mutual interlock of screw thread when interconnecting, also have to use and swing to teeth structural type, the outside is added with pressure sleeve again and compresses pipe fitting, make between pipe fitting and composite pipe or the thin-wall stainless steel to closely cooperate, but the effect of above linkage structure is bad, can not reach closely cooperate, firm purpose of connecting.
At the problem that exists, people have designed various crimping tools, and some has also applied for patent, and for example the Chinese patent literature data discloses a kind of card pressure pipe part charging hydraulic pressure Press Plier [application number: 01211889.3; Notice of authorization number: CN2467274Y], the structure of Press Plier is by opening Hubei Province binding clip, middle piston, the hydraulic pressure at piston rod transmitting portions and rear portion, motor driving part is grouped into, screw location attachment pegs is equipped with in both sides on its split shed Hubei Province binding clip, rolling synchronously and connecting plate of center, pinch roller and pinch roller support are equipped with in the connecting plate back, the piston rod of pinch roller support and intermediate piston is fixedly connected, upper cover of piston rod has Returnning spring, the piston outside is the oil hydraulic cylinder main body, in oil hydraulic cylinder, one-way valve is housed near piston end, be communicated with the one-way valve oil pocket plunger laterally is housed, plunger one end is with return spring, another termination cam follower connects with cam on the motor shaft, the cam outside is a can, cam and motor shaft are fixedly connected, in the plunger side and the vertical one-way valve that is equipped with plunger, the one-way valve inlet opening connects oil sac, unidirectional delivery outlet connects with the plunger oil pocket, form unidirectional oily circulation flow path, between one-way valve and plunger and the vertical relief valve that is equipped with plunger, the relief valve cone is housed in the relief valve, and all parts are fitted together in aggregates.
Above-mentioned card pressure pipe part charging hydraulic pressure Press Plier in use, the motor rotation, by cam mechanism circular movement being become the cam follower straight line moves repeatedly, the cam follower the other end is the plunger rod of plunger pump, plunger rod drives plunger makes oil pocket 2 produce a pressure, plunger rod resets by return spring, and so circulation increases the pressure of hydraulic oil, makes opening Hubei Province obtain enough hydraulic couplings at last the tight crimping of pipe fitting and pipe is connected.But this device that moves by the cam mechanism drive plunger rod, enough arrangement space must be arranged to satisfy the installation of cam mechanism in the structure, therefore whole structural volume is bigger, not portable, when particularly in some compact spaces pipe fitting being carried out crimping, the situation that can exist Press Plier to put into takes place, and the precision of cam mechanism is not high in addition, can't give Press Plier higher transmission accuracy, just there is the untight situation of pipe fitting crimping that makes in this.
At the whole category of ultrahigh-pressure hydraulic facility,, all exist and adopt cam mechanism to cause the bigger problem of structural volume such as cable shearing, the crimping of cable line end, punching, panel beating riveted joint etc.
Summary of the invention
The objective of the invention is at the above-mentioned problems in the prior art, the drive unit of plunger in a kind of miniature electric ultrahigh-pressure hydraulic pump of compact structure is provided, reduced the installing space at plunger place by this drive unit, made that the operating flexibility of whole miniature electric ultrahigh-pressure hydraulic pump is strong.
Purpose of the present invention can realize by following technical proposal: the drive unit of plunger in a kind of miniature electric ultrahigh-pressure hydraulic pump, has oil pocket in the body of miniature electric ultrahigh-pressure hydraulic pump, plunger is positioned at oil pocket, it is characterized in that, this device comprises the drive motor that is connected on the body, be provided with between the rotating shaft of drive motor and the plunger can intermittence roof pressure plunger along with the rotation of rotating shaft drive mechanism, have the spring that plunger is had abut on the above-mentioned drive mechanism between described plunger and the body.
The drive unit of plunger is directly arranged drive mechanism in this miniature electric ultrahigh-pressure hydraulic pump between the rotating shaft of drive motor and plunger, need not ward off other installing space, compact structure in addition.
When this drive unit uses, open drive motor, the rotating shaft of drive motor is rotated, drive mechanism drives intermittence roof pressure plunger by rotating shaft, plunger is during by the drive mechanism roof pressure, and roof pressure is made every effort to overcome the elastic force of clothes spring, and plunger is moved on axially by roof pressure can produce a pressure in oil pocket, when plunger during not by the drive mechanism roof pressure, spring provides elastic force to make plunger abut on the drive mechanism again.
In the drive unit of plunger, be fixed with tubular fixed base between described body and the drive motor in above-mentioned miniature electric ultrahigh-pressure hydraulic pump, above-mentioned drive mechanism is positioned at fixed base.Fixed base plays the effect of accepting, and body and drive motor are fixed together, and also driving mechanism is played a protective role simultaneously, avoids driving mechanism in use to be collided, and preventing also that particulate such as dust from entering influences its precision in the driving mechanism.
In above-mentioned miniature electric ultrahigh-pressure hydraulic pump in the drive unit of plunger, described drive mechanism is roller and the cam disk between roller and plunger that is connected in the rotating shaft of drive motor, described cam disk end has concavo-convex camming surface, and the above-mentioned rollers edge contacts with camming surface.Conflict on cam disk in the end of plunger, the rotating shaft of drive motor drives roller by friction and rotates, roller rotates and has enough to meet the need around the fixed base angle contacting, when roller contacted at camming surface protrusion place, cam disk was axially gone up to move on the moving plunger of shipper pole and is given oil pocket a pressure, when roller contacts at the camming surface depression, the elastic force of spring makes plunger move down, plunger is pressing cam disk to move down, and roller contacts again at camming surface protrusion place afterwards, so circulation.The volume of cam disk is little, has reduced installing space, and the transmission stability by cam disk is good, transmission accuracy is high.
In the drive unit of plunger, described cam disk size is slightly larger than roller size in above-mentioned miniature electric ultrahigh-pressure hydraulic pump.Roller can be embedded in the cam disk slightly like this, roller and cam disk angle contacting, and transmission is comparatively stable.
In above-mentioned miniature electric ultrahigh-pressure hydraulic pump, in the drive unit of plunger, has axial guides between described cam disk and the fixed base.Axial guides plays axially directed effect, prevents that cam disk from rotating.
In above-mentioned miniature electric ultrahigh-pressure hydraulic pump in the drive unit of plunger, described axial guides is along the axial arranged needle roller of plunger, described needle roller partly is arranged in the groove that the cam disk outer circumferential face axially offers, and needle roller part in addition is arranged in the notch that fixed base axially offers.
According to actual conditions, axial guides can also be the axially protruding to the inside fin of fixed base, and fin is arranged in the groove that cam disk axially offers, and can prevent that so also cam disk from rotating, and guarantees the axially movable guidance quality of cam disk.
In the drive unit of plunger, described spring housing is on plunger, and the two ends of spring difference roof pressure is on body and plunger in above-mentioned miniature electric ultrahigh-pressure hydraulic pump.The spring installing and locating is comparatively convenient like this.
In the drive unit of plunger, be connected with spring seat on the described body in above-mentioned miniature electric ultrahigh-pressure hydraulic pump, spring seat is threaded with body, and above-mentioned spring is positioned at spring seat.
In the drive unit of plunger, be provided with seal ring between described plunger and the body in above-mentioned miniature electric ultrahigh-pressure hydraulic pump, have the convex edge that is used to locate seal ring in the body, above-mentioned seal ring is pressed between convex edge and the spring seat.Seal ring guarantees the sealing between plunger and the body.
In above-mentioned miniature electric ultrahigh-pressure hydraulic pump in the drive unit of plunger, an end of described fixed base is enclosed within on the body and both are threaded, and the other end of fixed base is connected by fastening piece and drive motor.In actual the manufacturing, fastening piece can be bolt or screw.
Compared with prior art, the drive unit of plunger need not be warded off other installing space, compact structure in addition by direct layout drive mechanism between the rotating shaft of drive motor and plunger in this miniature electric ultrahigh-pressure hydraulic pump; Cam disk volume in the drive mechanism is little in addition, has reduced installing space, and passes through transmission good stability, the transmission accuracy height of cam disk.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of the drive unit of plunger in this crimping tool.
Fig. 2 is the structural representation of the drive unit convexity wheel disc of plunger in this crimping tool.
Among the figure, 1, body; 2, oil pocket; 3, plunger; 4, drive motor; 5, rotating shaft; 6, spring; 7, fixed base; 8, roller; 9, cam disk; 9a, camming surface; 10, axial guides; 11, spring seat; 12, seal ring; 13, convex edge; 14, fastening piece; 15, bulge loop; 16, positioning hole; 17, groove.
Embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
The drive unit of plunger is made up of component such as plunger 3, drive motor 4, spring 6 and drive mechanisms in this miniature electric ultrahigh-pressure hydraulic pump, is applicable in the ultrahigh-pressure hydraulic facility such as cable shearing, the crimping of cable line end, punching, panel beating riveted joint and crimping tool.
Specifically, as shown in Figure 1, has oil pocket 2 in the body 1 of miniature electric ultrahigh-pressure hydraulic pump, plunger 3 is positioned at oil pocket 2, drive motor 4 is connected in the drive motor 4 on the body 1, be provided with between the rotating shaft 5 of drive motor 4 and the plunger 3 can intermittence roof pressure plunger 3 along with the rotation of rotating shaft 5 drive mechanism, have the spring 6 that plunger 3 is had abut on the drive mechanism between plunger 3 and the body 1.
Further describe in detail, on the body 1 by the spring seat 11 that has been threaded, spring 6 is positioned at spring seat 11 and spring 6 is enclosed within on the plunger 3, the two ends difference roof pressure of spring 6 is on body 1 and plunger 3, for spring 6 roof pressures convenience, the bulge loop 15 that has circumferential projection on the plunger 3, an end roof pressure of spring 6 is on the bulge loop 15 of plunger 3.In order to guarantee the sealing between plunger 3 and the body 1, avoid hydraulic oil to enter into plunger 3 places, be provided with seal ring 12 between plunger 3 and the body 1, have the convex edge 13 that is used to locate seal ring 12 in the body 1, seal ring 12 is pressed between convex edge 13 and the spring seat 11.For driving mechanism is played a protective role; avoid driving mechanism in use to be collided; preventing also that particulates such as dust from entering influences its precision in the driving mechanism; be fixed with tubular fixed base 7 between body 1 and the drive motor 4; one end of fixed base 7 is enclosed within on the body 1 and both are threaded; the other end of fixed base 7 is connected by fastening piece 14 and drive motor 4, and fastening piece 14 is a bolt in the present embodiment, and drive mechanism is positioned at fixed base 7.Drive mechanism is roller 8 and the cam disk 9 between roller 8 and plunger 3 that is connected in drive motor 4 rotating shafts 5, cam disk 9 sizes are slightly larger than roller 8 sizes, as shown in Figure 2, cam disk 9 ends have concavo-convex camming surface 9a, roller 8 edges contact with camming surface 9a, better locate for plunger 3, be processed with positioning hole 16 on the end face of cam disk 9, an end of plunger 3 is passed the bulge loop 15 of positioning hole 16 and plunger 3 and is conflicted on the end face of cam disk 9.Has axial guides 10 between cam disk 9 and the fixed base 7, axial guides 10 is along an axial arranged needle roller of plunger 3, needle roller partly is arranged in the groove 17 that cam disk 9 outer circumferential faces axially offer, needle roller in addition part be arranged in that fixed base 7 axially offers notch, needle roller prevents the rotation of cam disk 9, makes the cam disk 9 can only axial displacement.
When the drive unit of plunger uses in this miniature electric ultrahigh-pressure hydraulic pump, open drive motor 4, the rotating shaft 5 of drive motor 4 is rotated, the rotating shaft 5 of drive motor 4 drives roller 8 by friction and rotates, roller 8 rotates and has enough to meet the need around fixed base 7 angle contacting, when roller 8 contacts at camming surface 9a protrusion place, cam disk 9 is axially gone up to move on the moving plunger 3 of shipper pole and is given oil pocket 2 one pressure, when roller 8 contacts at camming surface 9a depression, the elastic force of spring 6 makes plunger 3 move down, plunger 3 is pressing cam disk 9 to move down, roller 8 contacts again at camming surface 9a protrusion place afterwards, so circulation, and intermittence roof pressure plunger 3 makes oil pocket 2 continue to produce pressure, be that cam disk 9 also forms the track that moves up and down with roller 8 angle contacting under needle roller 10 and spring 6 effects, do straight reciprocating motion thereby promote plunger.Because adopt cam disk 9 to carry out transmission, transmission stability is good, transmission accuracy is high, and the volume of cam disk 9 is little, has reduced installing space, makes structure compact more.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as body 1, oil pocket 2, plunger 3, drive motor 4, rotating shaft 5, spring 6, fixed base 7, roller 8, cam disk 9, camming surface 9a, axial guides 10, spring seat 11, seal ring 12, convex edge 13, fastening piece 14, bulge loop 15, positioning hole 16, groove 17 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. the drive unit of plunger in the miniature electric ultrahigh-pressure hydraulic pump, has oil pocket (2) in the body (1) of miniature electric ultrahigh-pressure hydraulic pump, plunger (3) is positioned at oil pocket (2), it is characterized in that, this device comprises the drive motor (4) that is connected on the body (1), be provided with between the rotating shaft (5) of drive motor (4) and the plunger (3) can intermittence roof pressure plunger (3) along with the rotation of rotating shaft (5) drive mechanism, have the spring (6) that plunger (3) is had abut on the above-mentioned drive mechanism between described plunger (3) and the body (1).
2. the drive unit of plunger is characterized in that in the miniature electric ultrahigh-pressure hydraulic pump according to claim 1, is fixed with tubular fixed base (7) between described body (1) and the drive motor (4), and above-mentioned drive mechanism is positioned at fixed base (7).
3. the drive unit of plunger in the miniature electric ultrahigh-pressure hydraulic pump according to claim 2, it is characterized in that, described drive mechanism for be connected in the roller (8) in the rotating shaft (5) of drive motor (4) and be positioned at roller (8) and plunger (3) between cam disk (9), described cam disk (9) end has concavo-convex camming surface (9a), and above-mentioned rollers (8) edge contacts with camming surface (9a).
4. the drive unit of plunger is characterized in that in the miniature electric ultrahigh-pressure hydraulic pump according to claim 3, and described cam disk (9) size is slightly larger than roller (8) size.
5. according to the drive unit of plunger in claim 3 or the 4 described miniature electric ultrahigh-pressure hydraulic pumps, it is characterized in that having axial guides (10) between described cam disk (9) and the fixed base (7).
6. the drive unit of plunger in the miniature electric ultrahigh-pressure hydraulic pump according to claim 5, it is characterized in that, described axial guides (10) is along the axial arranged needle roller of plunger (3), described needle roller partly is arranged in the groove (17) that cam disk (9) outer circumferential face axially offers, and needle roller part in addition is arranged in the notch that fixed base (7) axially offers.
7. according to the drive unit of plunger in claim 1 or the 2 or 3 described miniature electric ultrahigh-pressure hydraulic pumps, it is characterized in that described spring (6) is enclosed within on the plunger (3), and the two ends of spring (6) difference roof pressure is on body (1) and plunger (3).
8. the drive unit of plunger in the miniature electric ultrahigh-pressure hydraulic pump according to claim 7, it is characterized in that, be connected with spring seat (11) on the described body (1), spring seat (11) is threaded with body (1), and above-mentioned spring (6) is positioned at spring seat (11).
9. the drive unit of plunger in the miniature electric ultrahigh-pressure hydraulic pump according to claim 8, it is characterized in that, be provided with seal ring (12) between described plunger (3) and the body (1), have the convex edge (13) that is used to locate seal ring (12) in the body (1), above-mentioned seal ring (12) is pressed between convex edge (13) and the spring seat (11).
10. according to the drive unit of plunger in claim 2 or the 3 described miniature electric ultrahigh-pressure hydraulic pumps, it is characterized in that, one end of described fixed base (7) is enclosed within that body (1) is gone up and both are threaded, and the other end of fixed base (7) is connected by fastening piece (14) and drive motor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101868041A CN102269147A (en) | 2011-07-05 | 2011-07-05 | Actuating device of plunger in micro motor-driven ultrahigh-pressure hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101868041A CN102269147A (en) | 2011-07-05 | 2011-07-05 | Actuating device of plunger in micro motor-driven ultrahigh-pressure hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102269147A true CN102269147A (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101868041A Pending CN102269147A (en) | 2011-07-05 | 2011-07-05 | Actuating device of plunger in micro motor-driven ultrahigh-pressure hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102269147A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711671A (en) * | 2013-12-13 | 2014-04-09 | 四川盛堡机电科技有限责任公司 | Ultra-high-pressure axial plunger pump |
| CN111864980A (en) * | 2019-04-29 | 2020-10-30 | 上海沃恒机械设备有限公司 | Driving device for plunger hydraulic pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241238Y (en) * | 1996-02-28 | 1996-11-27 | 翟延文 | Seven-plunger sloping plate oil pump |
| CN2610108Y (en) * | 2003-03-17 | 2004-04-07 | 无锡油泵油嘴研究所 | In-line injection pump of diesel engine of light vehicle |
| CN101180452A (en) * | 2005-02-24 | 2008-05-14 | 托马斯机械有限责任公司 | Lash adjustment for piston rollers |
| US20080279702A1 (en) * | 2007-05-11 | 2008-11-13 | Lock & Lock Co., Ltd. | Handheld vacuum suction device |
| CN202176471U (en) * | 2011-07-05 | 2012-03-28 | 张银根 | Driving device of plunger in mini-type motor-driven ultrahigh pressure hydraulic pump |
-
2011
- 2011-07-05 CN CN2011101868041A patent/CN102269147A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241238Y (en) * | 1996-02-28 | 1996-11-27 | 翟延文 | Seven-plunger sloping plate oil pump |
| CN2610108Y (en) * | 2003-03-17 | 2004-04-07 | 无锡油泵油嘴研究所 | In-line injection pump of diesel engine of light vehicle |
| CN101180452A (en) * | 2005-02-24 | 2008-05-14 | 托马斯机械有限责任公司 | Lash adjustment for piston rollers |
| US20080279702A1 (en) * | 2007-05-11 | 2008-11-13 | Lock & Lock Co., Ltd. | Handheld vacuum suction device |
| CN202176471U (en) * | 2011-07-05 | 2012-03-28 | 张银根 | Driving device of plunger in mini-type motor-driven ultrahigh pressure hydraulic pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711671A (en) * | 2013-12-13 | 2014-04-09 | 四川盛堡机电科技有限责任公司 | Ultra-high-pressure axial plunger pump |
| CN103711671B (en) * | 2013-12-13 | 2015-12-30 | 广东华液动力科技有限公司 | ultrahigh pressure axial plunger pump |
| CN111864980A (en) * | 2019-04-29 | 2020-10-30 | 上海沃恒机械设备有限公司 | Driving device for plunger hydraulic pump |
| CN111864980B (en) * | 2019-04-29 | 2023-03-28 | 上海沃恒机械设备有限公司 | Driving device for plunger hydraulic pump |
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Application publication date: 20111207 |