CN102141122A - Hydraulic tension device - Google Patents
Hydraulic tension device Download PDFInfo
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- CN102141122A CN102141122A CN2010101086798A CN201010108679A CN102141122A CN 102141122 A CN102141122 A CN 102141122A CN 2010101086798 A CN2010101086798 A CN 2010101086798A CN 201010108679 A CN201010108679 A CN 201010108679A CN 102141122 A CN102141122 A CN 102141122A
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- depressed part
- air valve
- piston
- face
- hydranlic tensioner
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Abstract
The invention relates to a hydraulic tension device comprising a body with a first sunk part, a piston with a second sunk part at the bottom surface, an air valve contained in the second sunk part and an elastic member. In the invention, the first sunk part is used for containing liquid which provides hydraulic pressure; the top surface of the piston is provided with a first through hole, wherein the piston is movably contained in the first sunk part and the top surface of the piston protrudes outside the first sunk part; and the top surface of the air valve comprises a third sunk part and a channel part which communicates the third sunk part with the first through hole of the piston, wherein the bottom surface of the third sunk part is provided with a second through hole which is communicated with the bottom surface of the air valve and the bottom surface of the air valve is contacted with one end of the elastic member.
Description
Technical field
The invention relates to a kind of Hydranlic tensioner, particularly relevant for a kind of Hydranlic tensioner that is applied in power plant or the transmission device.
Background technique
Hydranlic tensioner generally is to be applied in power system or the transmission system.For example: be used for the circulation resilient member of power of transferring power system drive axle, in order to make the transmission of power smooth and easy, and the vibrations that tension variation caused of the resilient member of avoiding circulating, so the slack-side in the circulation resilient member is provided with a Hydranlic tensioner usually, and see through a hydraulic channel and connect hydraulic pressure groove and oil hydraulic pump (oil pressure pump (OilPump) formation Hydranlic tensioner group is for example automatically adjusted the tension force of circulation resilient member by this.
At U.S. Patent number US 5,346, in 436, people such as Francis J.Hunter disclose general Hydranlic tensioner and include body, piston, air valve and spring, wherein air valve mainly act on provide a passage to be communicated with piston tip penetration hole and the space of piston depressed part, by the passage of air valve, make that the gas in the hydraulic oil that is comprised between piston and the body can be discharged outside the Hydranlic tensioner.Its major technique is characterised in that the design of air valve upper channel, and wherein passage is arranged on the end face of air valve, utilizes curved geometric to increase the distance of air valve upper channel.But the channels designs of this air valve allows the discharge of gas have some setbacks.
Summary of the invention
The objective of the invention is is providing a kind of Hydranlic tensioner, end face at the air valve of Hydranlic tensioner is provided with the 3rd depressed part, and the channel part that is communicated with first penetration hole of the 3rd depressed part and piston, allow the gas that is comprised in the hydraulic oil discharge more smooth and easy, and increase hydraulic fluid leak required distance of flowing through to Hydranlic tensioner by this, reduce too much hydraulic fluid leak to Hydranlic tensioner.
Advantage of the present invention is, the end face of air valve can cooperate also with the end face of piston depressed part can produce effect, so but the production of air valve be Mo Groupization, and be applicable to the tension device of each form.
According to one embodiment of the invention, provide a kind of Hydranlic tensioner.This kind Hydranlic tensioner comprises: body, bottom surface with first depressed part have the piston of second depressed part, the air valve that is located in second depressed part, resilient member, hydraulic channel portion and check valve.First depressed part is the liquid that provides hydraulic pressure in order to be installed with.And piston-top surface has first penetration hole, and wherein piston is to be installed with movably at first depressed part, and can convexedly stretch in outside first depressed part.And air valve has relative end face and bottom surface, wherein include at least one the 3rd depressed part on the end face and be communicated with the 3rd depressed part and at least one channel part of piston first penetration hole, the bottom surface of the 3rd depressed part more is concaved with at least one second penetration hole in order to the bottom surface that is communicated with the 3rd depressed part and air valve.One end of resilient member contacts with air valve.Hydraulic channel is in order to be communicated with the feeding mechanism of body first depressed part and liquid.Check valve is in order to prevent that liquid countercurrent is to feeding mechanism.
Description of drawings
In order preferable understanding to be arranged, please refer to following detailed description and cooperate graphic accordingly viewpoint of the present invention.Be stressed that according to the standard normal of industry, the various features in the accompanying drawing do not illustrate to scale.In fact, for clearly demonstrating the foregoing description, can at random amplify or dwindle the size of various features.The correlative type description of contents is as follows.
Figure 1A is the generalized section that one of illustrates according to the present invention embodiment's Hydranlic tensioner.
Figure 1B is the schematic top plan view that illustrates the air valve of Figure 1A.
Fig. 1 C illustrates the generalized section of dissecing along Figure 1B center line AA '.
Fig. 2 A is the schematic top plan view that illustrates the air valve of another embodiment according to the present invention.
Fig. 2 B illustrates the generalized section of dissecing along Fig. 2 A center line BB '.
Fig. 3 A is the schematic top plan view that illustrates the air valve of another embodiment according to the present invention.
Fig. 3 B illustrates the generalized section of dissecing along Fig. 3 A center line CC '.
Fig. 4 A is the schematic top plan view that illustrates the air valve of another embodiment according to the present invention.
Fig. 4 B illustrates the generalized section of dissecing along Fig. 4 A center line DD '.
Fig. 4 C is the generalized section that illustrates the air valve of another embodiment according to the present invention.
Embodiment
In the following description, similar assembly will be with same reference numeral.
Please refer to Figure 1A, it is the generalized section that one of illustrates according to the present invention embodiment's Hydranlic tensioner.Hydranlic tensioner 100 comprises body 102, piston 104, air valve 200, resilient member 108 and check valve 110, and has more hydraulic channel 112 in the body 102.Hydranlic tensioner 100 is connected with hydraulic pipe line (not illustrating) with hydraulic channel 112, and wherein hydraulic pipe line interconnects with hydraulic pressure groove (not illustrating) again, and the hydraulic pressure groove then interconnects with oil hydraulic pump (not illustrating), forms the Hydranlic tensioner group.In the Hydranlic tensioner group, mainly be to utilize oil hydraulic pump that the liquid in the hydraulic pressure groove (for example hydraulic oil) is delivered in the body 102 of Hydranlic tensioner 100 through hydraulic pipe line and hydraulic channel 112.
In Hydranlic tensioner 100, body 102 has the first depressed part 102a, in this embodiment, the first depressed part 102a has bottom surface 102aa and side 102ab, wherein the first depressed part 102a is used for being installed with the aforementioned liquid that comes from the hydraulic pressure groove, this liquid mainly is to be used for the pressure of carrier fluid press pump, provides piston 104 required thrust by this.
In this embodiment, the bottom surface 104a of piston 104 has the second depressed part 104b, wherein the second depressed part 104b comprises bottom surface 104ba and side 104bb, and the end face 104c of piston 104 has the first penetration hole 104d, wherein piston 104 is installed with in the first depressed part 102a of body 102, the ccontaining space that comes from the liquid of hydraulic pressure groove of the common formation of second depressed part 104b of piston 104 and the first depressed part 102a of body 102, in addition, the end face 104c of piston 104 can convexedly stretch in outside the first depressed part 102a of body 102.When piston 104 is subjected to the promotion of the liquid that is installed with among the first depressed part 102a of body 102, piston 104 can move away from the direction of body 102 along the axial court of the first depressed part 102a of body 102, keeps the tension force of the circulation resilient member (not illustrating) that contacts with the end face 104c of piston 104 by this.
In the present embodiment, air valve 200 is to be installed with among the second depressed part 104b of piston 104.
Please be simultaneously with reference to Figure 1B and Fig. 1 C, wherein Figure 1B is the top view for the air valve 200 of Figure 1A, Fig. 1 C illustrates the generalized section of dissecing along Figure 1B center line AA '.Air valve 200 has relative end face 202 and a bottom surface 204 and a side 205, wherein be provided with at least one the 3rd depressed part 206 and a channel part 212 in end face 202, wherein channel part 212 is in order to be communicated with the first penetration hole 104d of the 3rd depressed part 206 and piston 104.
In the present embodiment, the 3rd depressed part 206 is to be ring-type, and only in other embodiments, the 3rd depressed part 206 can have other geometrical shape, for example polygonal etc.The 3rd depressed part 206 is around being arranged with on the end face 202 of air valve 200, and the bottom surface of the 3rd depressed part 206 is that to be provided with six second penetration hole, 210, the second penetration holes 210 around the 3rd depressed part 206 regularly be in order to be communicated with the bottom surface 204 of the 3rd depressed part 206 and air valve 200 in the present embodiment.
When the bottom surface 104ba of the end face 202 of air valve 200 and side 205 and the second depressed part 104b of piston 104 and side 104bb closely cooperate, be included in the gas that liquid comprised of the first depressed part 102a, be in regular turn via second penetration hole 210 of the bottom surface 204 of air valve 200, again to the 3rd depressed part 206, after channel part 212, discharge outside the Hydranlic tensioner 100 via the first penetration hole 104d of piston 104.
Shown in Figure 1A, in the present embodiment, resilient member 108 is springs, but not as limit.Resilient member 108 is located among the second depressed part 104b of piston 104, and a wherein end of resilient member 108 contacts with air valve 200, and the other end places in the second depressed part 104b of piston 104.The main effect of resilient member 108 is to provide piston 104 basic thrust, keeps the tension force of the circulation resilient member (not illustrating) that contacts with the end face 104c of piston 104 by this.
Please refer to Fig. 2 A and Fig. 2 B, it is the top view that illustrates the air valve 300 of another embodiment according to the present invention respectively, and the generalized section of dissecing along Fig. 2 A center line BB '.In this embodiment, air valve 300 dependency structures, variation and and piston between relativeness all be similar to the structure and the relation of air valve 200, so below only partly be illustrated with regard to difference, similar portions promptly repeats no more.Smoothness for the liquid institute air inclusion of the first penetration hole 104d that further promotes the piston 104 of flowing through, air valve 300 is except that being provided with corresponding to air valve 200 the 3rd depressed part 206, more set up one the 4th depressed part 208, this the 4th depressed part 208 is to be a concentric ring with the 3rd depressed part 206 in the present embodiment, and diameter is less than the 3rd depressed part 206.In addition, the 4th depressed part 208 also is same as the 3rd depressed part 206, and 304 are provided with six second penetration holes 210 around the 4th depressed part 208 regularly in the bottom surface, and the 4th depressed part 208 has identical horizontal bottom with the 3rd depressed part 206; The 4th depressed part 208 then has identical end face 302 with the 3rd depressed part 206, but a side ancient piece of jade, round, flat and with a hole in its centre height of the 3rd depressed part 206 is side ancient piece of jade, round, flat and with a hole in its centres that are higher than the 4th depressed part 208.Make and form a channel part 212 between the end face 302 of the 3rd depressed part 206, the 4th depressed part 208 and air valve 300, this channel part 212 is in order to being communicated with the 4th depressed part 208 and three depressed parts 206, and is communicated with the first penetration hole 104d.And common sidewall height is another sidewall that is different from the 4th depressed part 208 between the 3rd depressed part 206 and the 4th depressed part 208, and is lower than the end face 302 of air valve 300.
Please refer to Fig. 3 A and Fig. 3 B, it is the top view that illustrates the air valve 400 of another embodiment according to the present invention respectively, and the generalized section of dissecing along Fig. 3 A center line CC '.In this embodiment, air valve 400 dependency structures, variation and and piston between relativeness all be similar to the structure and the relation of air valve 300, so below only partly be illustrated with regard to difference, similar portions promptly repeats no more.In air valve 400, the 3rd depressed part 206 flushes with the end face 402 of air valve 400 with end face between the 4th depressed part 208, and closely cooperate with the bottom surface 104ba of the piston second depressed part 104b, channel part 212 is to form a rectangle groove shape by 402 depressions of the part end face between the 3rd depressed part 206 and the 4th depressed part 208, is communicated with the 3rd depressed part 206 and is communicated with the 4th depressed part 208 and with 104d.
Please refer to Fig. 4 A and Fig. 4 B, it is the top view that illustrates the air valve 500 of another embodiment according to the present invention respectively, and the generalized section of dissecing along Fig. 4 A center line DD '.In this embodiment, air valve 500 dependency structures, variation and and piston between relativeness all be similar to the structure and the relation of air valve 400, so below only partly be illustrated with regard to difference, similar portions promptly repeats no more.In air valve 500, the outer periphery essence of the 3rd depressed part 206 is one circular and in the form of a ring, inner periphery is made up formed geometrical shape (but not exceeding with this shape) by a plurality of arcuations, purpose is for increasing the space of the 3rd depressed part 206, allows gas that liquid comprised easily in this gathering.The 4th depressed part 208 is located at the circle centre position of air valve 500, can directly be communicated with the first penetration hole 104d, and its bottom surface sinking degree is shallower than the 3rd depressed part 206, and in other certain embodiments, the 4th depressed part 208 bottom surface sinking degrees also can be deeper than the 3rd depressed part 206.
In addition, the 4th depressed part 208 is not provided with second penetration hole 210 in the bottom surface in present embodiment, and in the present embodiment, the end face 502 that the 4th depressed part 208 and the 3rd depressed part are 206 more forms a channel part 212, uses to be communicated with the 3rd depressed part 206 and the 4th depressed part 208.Wherein channel part 212 is between the 3rd depressed part 206 and the 4th depressed part 208, be to present a groove-like, make the gas that liquid comprised that accumulates in the 3rd depressed part 206, only can be via the inner periphery certain location inlet passage portion 212 of the 3rd depressed part 206, enter again in the 4th depressed part 208, discharge outside the Hydranlic tensioner 100 via the first penetration hole 104d of piston 104 at last.
Please refer to Fig. 4 C, in present embodiment, air valve 504 more is equipped with a bump 214 in the bottom surface, and bump 214 is that the position is among the second depressed part 104b of the piston shown in Figure 1A 104.And space that can ccontaining liquid between the first depressed part 102a of the second depressed part 104b that the main effect of bump 214 is to reduce piston 104 and body 102, minimizing is set up the required time of oil pressure by this.
The above-mentioned feature of describing a plurality of embodiments generally can more be understood be described in detail corresponding with it so that be familiar with this skill person.Being familiar with this skill person can realize, and utilize this exposure can design or revise other program and structure as the basis, to reach the embodiment's that this specification introduced identical purpose and/or advantage.Be familiar with this skill person and also can recognize framework in the equivalence of spirit that does not break away from this exposure and scope, and in spirit that does not break away from this exposure and scope, when doing various changes, substituting and retouching.
Claims (8)
1. a Hydranlic tensioner comprises:
One body has one first depressed part, and wherein this first depressed part is a liquid that provides hydraulic pressure in order to be installed with;
One piston, the bottom surface of this piston have one second depressed part, and the end face of this piston has one first penetration hole, and wherein this piston is to be located in this first depressed part movably, and the end face of this piston is can convexedly stretch in outside this first depressed part;
One air valve is located in second depressed part of this piston, it is characterized in that this air valve has a relative end face and a bottom surface, and this air valve comprises:
One the 3rd depressed part, wherein the 3rd depressed part is to be arranged with on this end face of this air valve, and the bottom surface of the 3rd depressed part is provided with at least one second penetration hole, this second penetration hole is in order to be communicated with this bottom surface of the 3rd depressed part and this air valve; And
At least one channel part, wherein this channel part is in order to be communicated with this first penetration hole of the 3rd depressed part and this piston.
2. Hydranlic tensioner according to claim 1 is characterized in that, this end face of this air valve is concaved with one the 4th depressed part that is communicated with this channel part.
3. Hydranlic tensioner according to claim 2 is characterized in that, the bottom surface of the 4th depressed part is provided with at least one this second penetration hole.
4. Hydranlic tensioner according to claim 2 is characterized in that, that the sinking degree of the 4th depressed part can be selected is identical, be deeper than or be shallower than the 3rd depressed part.
5. Hydranlic tensioner according to claim 2 is characterized in that, a side ancient piece of jade, round, flat and with a hole in its centre height of the 3rd depressed part is different from a sidewall of the 4th depressed part, and is lower than this end face of this air valve.
6. according to claim 2,3 or 4 described Hydranlic tensioners, it is characterized in that the inner periphery of the 3rd depressed part or the 4th depressed part or the geometrical shape of outer periphery are to be selected from the group that the geometrical shape be made up of ring-type, a plurality of arcuation or polygonal geometrical shape are formed.
7. Hydranlic tensioner according to claim 6, it is characterized in that, this end face of this air valve of position between the 3rd depressed part and this four depressed part partly, closely cooperate with the bottom surface of this second depressed part of this piston, this channel part is to be at least one groove-like between the 3rd depressed part and the 4th depressed part.
8. Hydranlic tensioner according to claim 1 is characterized in that, a bump is equipped with in this bottom surface of this air valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101086798A CN102141122A (en) | 2010-02-03 | 2010-02-03 | Hydraulic tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101086798A CN102141122A (en) | 2010-02-03 | 2010-02-03 | Hydraulic tension device |
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| Publication Number | Publication Date |
|---|---|
| CN102141122A true CN102141122A (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101086798A Pending CN102141122A (en) | 2010-02-03 | 2010-02-03 | Hydraulic tension device |
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| CN (1) | CN102141122A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775581A (en) * | 2012-10-23 | 2014-05-07 | 谢夫勒科技股份两合公司 | Traction tensioner |
-
2010
- 2010-02-03 CN CN2010101086798A patent/CN102141122A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775581A (en) * | 2012-10-23 | 2014-05-07 | 谢夫勒科技股份两合公司 | Traction tensioner |
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Application publication date: 20110803 |