CN109058404A - A kind of integrated hydraulic double-piston stretcher - Google Patents

A kind of integrated hydraulic double-piston stretcher Download PDF

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Publication number
CN109058404A
CN109058404A CN201811258925.0A CN201811258925A CN109058404A CN 109058404 A CN109058404 A CN 109058404A CN 201811258925 A CN201811258925 A CN 201811258925A CN 109058404 A CN109058404 A CN 109058404A
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CN
China
Prior art keywords
piston
stretcher
shell
check valve
oil inlet
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.)
Granted
Application number
CN201811258925.0A
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Chinese (zh)
Other versions
CN109058404B (en
Inventor
苏瑜
林云超
高鑫
梅龙树
窦庆东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ivy Drive System (pinghu) Co Ltd
Original Assignee
Ivy Drive System (pinghu) Co Ltd
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Publication date
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Priority to CN201811258925.0A priority Critical patent/CN109058404B/en
Publication of CN109058404A publication Critical patent/CN109058404A/en
Application granted granted Critical
Publication of CN109058404B publication Critical patent/CN109058404B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/202—Externally-operated valves mounted in or on the actuator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0812—Fluid pressure
    • F16H2007/0817—Fluid pressure with means for venting unwanted gas

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

A kind of integrated hydraulic double-piston stretcher, first piston stretcher including setting at an angle to each other, second piston stretcher, first piston stretcher, second piston stretcher is connected to oil inlet, first stretcher includes shell, check valve, piston, one end of shell is connected to oil inlet, the other end opens wide, the open one end end of shell is equipped with mounting hole, check valve is pressed at the oil inlet of shell, piston is mounted on the inside of shell, and it can move along a straight line along housing cavity, the inner hollow of piston, and the open at one end of piston, the other end is provided with gas vent, internal piston is equipped with preloading spring, filler, one end of preloading spring is connect with check valve, the other end is connect with filler, one end of filler is embedded in preloading spring, the other end is connect with one end far from piston gap end, the second piston stretcher and One piston tensioner structure having the same.The present invention reduces assembly space, improves assembly efficiency, reduces product cost.

Description

A kind of integrated hydraulic double-piston stretcher
Technical field
The present invention relates to engine tensioner technical field more particularly to a kind of integrated hydraulic double-piston stretchers.
Background technique
In diesel timing catenary system arrangement, it is divided into two-stage catenary system up and down, so needing in the case where normal arrangement Upper and lower two-stage catenary system is tensioned using two hydraulic tensioners respectively, such engine cylinder body needs to reserve two The installation space of tight device and the oil duct arrangement of engine, this undoubtedly the space compact for front end proposes larger challenge, and And the engine set-up time needs more, part manufacturing cost also synchronous rising.
Summary of the invention
In view of this, a kind of it is necessary to provide space utilization rates integrated hydraulic double-piston high, quick for installation, at low cost Stretcher.
A kind of integrated hydraulic double-piston stretcher, including the first piston stretcher of setting at an angle to each other, second piston Stretcher, first piston stretcher are fixedly connected with second piston stretcher, and first piston stretcher, second piston are tensioned Device is connected to oil inlet, and first stretcher includes shell, check valve, piston, and one end of the shell and oil inlet connect Logical, the other end opens wide, and the open one end end of shell is equipped with mounting hole, and the check valve is pressed at the oil inlet of shell, the work Plug is mounted on the inside of shell, and draining gap is equipped between piston and housing cavity, and can move along a straight line along housing cavity, living The inner hollow of plug, and the open at one end of piston, the other end is provided with gas vent, and the open end of piston is close to check valve, living Plug is internal to be equipped with preloading spring, filler, and one end of preloading spring is connect with check valve, and the other end is connect with filler, is filled out The one end for filling object is embedded in preloading spring, and the other end is connect with one end far from piston gap end, the second piston tensioning Device and first piston stretcher structure having the same.
Preferably, the open one end of the shell is equipped with piston limiting device.
Preferably, the piston limiting device includes lock pin, and lock pin is matched with the size of mounting hole, and lock pin is inserted in peace It fills in hole, to prevent integrated hydraulic double-piston stretcher from piston being made to drop out loss out of shell during transportation.
Preferably, at the oil inlet of the check valve interference fit indentation shell.
The present invention by adopting the above technical scheme, the beneficial effect is that: the present invention is by original there are two hydraulic tensioner collection As a hydraulic tensioner, reduce the assembly space of stretcher on the engine, improves stretcher on the engine Assembly efficiency reduces stretcher product cost.Oil circuit compares concentration simultaneously, convenient for improving the oil-filled efficiency of stretcher, keeps it fast Operating oil pressure is found in run-up, and due to there is individual event valve, so that two piston tensioners can not only guarantee input pressure, And it is mutually isolated to meet respective oil inlet.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the A-A cross-sectional view in Fig. 1.
Fig. 3 is the B-B cross-sectional view in Fig. 1.
Fig. 4 is the present invention and the connection schematic diagram with engine.
In figure: first piston stretcher 10, shell 1, check valve 2, piston 3, preloading spring 4, filler 5, lock pin 6, row Stomata 7, second piston stretcher 20, level-one catenary system 30, second level catenary system 40.
Specific embodiment
Fig. 1 to Fig. 4 is please referred to, the embodiment of the invention provides a kind of integrated hydraulic double-piston stretchers, including are mutually First piston stretcher 10, the second piston stretcher 20 of angle setting, first piston stretcher 10 and second piston stretcher 20 are fixedly connected, and first piston stretcher 10, second piston stretcher 20 are connected to oil inlet, first stretcher Including shell 1, check valve 2, piston 3, one end of the shell 1 is connected to oil inlet, and the other end opens wide, shell 1 open one End is held to be equipped with mounting hole, the check valve 2 is pressed at the oil inlet of shell 1, and the piston 3 is mounted on the inside of shell 1, and living It is equipped with draining gap between plug 3 and 1 inner cavity of shell, and can be moved along 1 linear interior of shell, the inner hollow of piston 3, and piston 3 open at one end, the other end are provided with gas vent 7, and the open end of piston 3 be equipped with inside check valve 2, piston 3 it is pre- Tight spring 4, filler 5, one end of preloading spring 4 are connect with check valve 2, and the other end is connect with filler 5, and the one of filler 5 End is embedded in preloading spring 4, and the other end is connect with far from one end of 3 open end of piston, the second piston stretcher 20 and The structure having the same of first piston stretcher 10, to keep processing and installation convenient.
Further, the open one end of the shell 1 is equipped with piston limiting device, and piston limiting device described above can also For other position-limit mechanisms in industry.
Further, the piston limiting device includes lock pin 6, and lock pin 6 is matched with the size of mounting hole, and lock pin 6 is inserted Enter in mounting hole, is lost with preventing integrated hydraulic double-piston stretcher from drop out piston 3 out of shell 1 It loses.
Further, at the oil inlet of the interference fit of the check valve 2 indentation shell 1.
Fig. 4 is please referred to, for the scheme of installation of the present invention within the engine, integrated hydraulic double-piston stretcher is installed In 40 side of level-one catenary system 30 and second level catenary system, first piston stretcher 10, second piston stretcher 20 angle according to It is specific to need to set.
Working method of the invention is as follows: when work, machine oil by engine main oil gallery be filled with first piston stretcher 10, It in second piston stretcher 20, is filled in piston 3 by check valve 2 respectively, when chain load power is applied to first piston tensioning Device 10, second piston stretcher 20 piston when, compress the preloading spring 4 in piston 3, and then make piston 3 along 1 inner cavity of shell Mobile to the one end for being located at check valve 2, the machine oil in piston 3 is squeezed to form higher oil pressure, and can from draining gap by It gradually flows out, while the bubble in machine oil being discharged by gas vent 7, the foundation for influencing oil pressure in piston 3 is avoided, finally to chain Loading force formed damping, make its timing chain system stable operation；
Simultaneously, check valve 2 will do it opening and closing, the machine oil stream of application valve body two sides since oil pressure difference changes Dynamic, after the machine oil in piston 3 releases, oil pressure is reduced, and opens check valve 2, and machine oil can be filled with again from engine main oil gallery First piston stretcher 10, second piston stretcher 20 piston in form oil pressure, so recycle oil-filled, keep integrated hydraulic double Piston tensioner circular flow.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and wants according to right of the present invention Made equivalent variations is sought, is still belonged to the scope covered by the invention.

Claims (4)

1. a kind of integrated hydraulic double-piston stretcher, it is characterised in that: first piston stretcher including setting at an angle to each other, Second piston stretcher, first piston stretcher are fixedly connected with second piston stretcher, and first piston stretcher, second Piston tensioner is connected to oil inlet, and first stretcher includes shell, check valve, piston, one end of the shell with Oil inlet connection, the other end open wide, and the open one end end of shell is equipped with mounting hole, the oil inlet of the check valve indentation shell Place, the piston are mounted on the inside of shell, and draining gap are equipped between piston and housing cavity, and can be straight along housing cavity Line movement, the inner hollow of piston, and the open at one end of piston, the other end is provided with gas vent, and the open end of piston is close Check valve, internal piston are equipped with preloading spring, filler, and one end of preloading spring is pressed in check valve, and the other end is connected to One end of filler and filler is embedded in preloading spring, and the other end is suppressed by preloading spring and is against at gas vent, and described Two piston tensioners and first piston stretcher structure having the same.
2. a kind of integrated hydraulic double-piston stretcher according to claim 1, it is characterised in that: the shell is open One end, which is equipped with, prevents the piston by its piston limiting device for opening wide one end abjection of shell.
3. a kind of integrated hydraulic double-piston stretcher according to claim 2, it is characterised in that: the piston limit dress It sets including lock pin, lock pin is matched with the size of mounting hole, and lock pin is inserted in mounting hole.
4. a kind of integrated hydraulic double-piston stretcher according to claim 1, it is characterised in that: the check valve interference At the oil inlet of cooperation indentation shell.
CN201811258925.0A 2018-10-26 2018-10-26 Integrated hydraulic double-piston tensioner Active CN109058404B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN109058404B CN109058404B (en) 2024-01-02

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FR2655118A1 (en) * 1989-11-30 1991-05-31 Sachs Ind Sa Hydraulic tensioner particularly for a chain
US5117786A (en) * 1990-07-26 1992-06-02 Dr. Ing. H.C.F. Porsche Ag Chain tensioner for an internal-combustion engine
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CN206581552U (en) * 2017-02-21 2017-10-24 江苏平达新型建材科技发展有限公司 A kind of foam concrete auto-flowing floor
WO2017202030A1 (en) * 2016-05-27 2017-11-30 钟晓悦 Driving belt auxiliary pressing conical disk belt-type transmission
CN107939923A (en) * 2017-12-28 2018-04-20 江西腾勒动力有限公司 A kind of engine tensioner structure
CN108150240A (en) * 2017-12-28 2018-06-12 潍柴动力股份有限公司 Rocking arm, variable valve actuation and engine
CN108412988A (en) * 2018-04-03 2018-08-17 博格华纳汽车零部件(宁波)有限公司 Start dynamo belt transmission device
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CN206581552U (en) * 2017-02-21 2017-10-24 江苏平达新型建材科技发展有限公司 A kind of foam concrete auto-flowing floor
CN107939923A (en) * 2017-12-28 2018-04-20 江西腾勒动力有限公司 A kind of engine tensioner structure
CN108150240A (en) * 2017-12-28 2018-06-12 潍柴动力股份有限公司 Rocking arm, variable valve actuation and engine
CN108412988A (en) * 2018-04-03 2018-08-17 博格华纳汽车零部件(宁波)有限公司 Start dynamo belt transmission device
CN209146241U (en) * 2018-10-26 2019-07-23 伊维氏传动系统（平湖）有限公司 A kind of integrated hydraulic double-piston stretcher

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曹国宏;刘银;余楠;李镀锋;: "一种新型矿井提升钢丝绳张紧应力检测装置", 煤炭工程, no. 06, pages 122 - 124 *

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