CN2913749Y - High-efficiency durable piston type equipment - Google Patents
High-efficiency durable piston type equipment Download PDFInfo
- Publication number
- CN2913749Y CN2913749Y CN 200420117841 CN200420117841U CN2913749Y CN 2913749 Y CN2913749 Y CN 2913749Y CN 200420117841 CN200420117841 CN 200420117841 CN 200420117841 U CN200420117841 U CN 200420117841U CN 2913749 Y CN2913749 Y CN 2913749Y
- Authority
- CN
- China
- Prior art keywords
- piston
- piston ring
- bearing cap
- bent axle
- type equipment
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000002035 prolonged effect Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 3
- 238000007142 ring opening reaction Methods 0.000 abstract 2
- 238000004880 explosion Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a high-efficient durable piston equipment, including cylinder body, piston ring, connecting rod, bent axle and crankcase be equipped with on the piston hug closely in the piston ring groove and pack into two or more than two open-ended piston rings side by side, each open-ended piston ring's opening sets up in the wrong phase, and each piston ring seals the ring opening each other for do not have the piston ring opening that link up in the axis direction of piston, reach the axial and do not leak the port. The device forms a leakage-free piston ring by extruding and embedding a plurality of existing open piston rings into one piston ring, so that good sealing is obtained between the piston and the cylinder body, and the structure is very convenient. The problem that is difficult to solve in a prior art is in the utility model discloses in can solve through very simple structure. Additionally, the utility model provides an among the technical scheme make bearing cap both sides extension, the part of extension can offset the explosion stress that comes from the piston top enough, ensures that the bent axle hole is indeformable.
Description
Technical field
The utility model provides a kind of piston type equipment, especially a kind of durable and efficient piston type equipment.
Background technique
In the prior art, these class piston type equipment such as motor, internal-combustion engine, air compressor and hydraulic pressure installation are updated innovation in the progress of last 100 years, in the efficient that improves device with aspect resistance to wearing a lot of innovation and creation have been arranged, also obtained no small achievement, but, with regard to simple in structure, simultaneously the outstanding effect design proposal is rare.People understand, improve the efficient of piston type equipment, and the sealing between piston and the cylinder body will be improved.Common piston ring all is an open type, in order to reduce the leakage of opening as far as possible, the piston ring of stepped shaft opening occurred, but, although opening is stepped shaft,, because the horizontal jointing at each ladder does not have enough big extruding force, therefore, sealing is not very desirable.Other sealing configuration, the structurally more complicated that has, what have is not enough on seal degree, so, all do not applied.
In piston type equipment, also have high efficiency and the serviceability of a problems affect to this device, that is exactly the problem on deformation of the crankshaft hole on crankcase, the distortion of crankshaft hole is from the outburst stress of piston head, in the existing apparatus structure,,, cause crankshaft hole to deform very soon so that stress is too concentrated not to the counteracting measure of this stress, the result makes lubricating oil pressure forfeiture, even causes damage such as internal-combustion engine and can not repair.
Summary of the invention
The purpose of this utility model is to improve deficiency of the prior art, provides to have sealability and the simple durable and efficient piston type equipment of sealing configuration well between a kind of piston and the cylinder body;
Further, provide a kind of crankshaft hole in use the not yielding durable and efficient piston type equipment that keeps efficient operation for a long time.
The purpose of this utility model is achieved in that
The durable and efficient piston type equipment that the utility model provides comprises cylinder body, piston, piston ring, connecting rod, bent axle and crankcase, described piston is located in the described cylinder body, the sidewall of described piston is provided with piston ring groove, sheathed fixing described piston ring in this piston ring groove, described piston ring and described cylinder body constitute sealing configuration, described piston is articulated and connected by an end of piston rod on it and described connecting rod, the other end of described connecting rod and described bent axle are articulated and connected, described crankshaft support is fixed on the bearing support on the crankcase, and this bearing support is provided with bearing cap; Wherein:
Be close to two or more opening piston rings of packing into side by side in the described piston ring groove that on described piston, is provided with, the setting that interlaces of the opening portion of each described opening piston ring, make each piston ring seal collar extension mutually, on the axial direction of piston, do not have the gap-clearance of piston rings of perforation, reach the purpose that does not axially have leak port.
Described piston ring is preferably the metallic piston ring.
Further, in order to prevent that effectively the crankshaft hole that supports the bearing support on the crankcase of fixing described bent axle from deforming under the effect of impact force, prolong the length of described bearing cap on the direction of cutting junction plane perpendicular to the axial direction of described bent axle and the center line that is parallel to the bent axle axis hole, make bearing cap prolongation the distance of the described crankshaft center of outward edge distance be 2/3 of bent axle diameter at least.
The prolongation of bearing cap can be offset this outburst stress with this so that the prolongation of bearing cap produces resiliently deformable at work when the outburst stress of piston occurs.In order to make the effect of offsetting stress best, the length that can prolong described bearing cap to greatest extent makes the outward edge of the bearing cap that has prolonged align with the outward edge of crankcase.
In addition, the thickness that can make described bearing cap is for bigger near the bent axle place, the place is less away from bent axle, make and form the triangular-section in the extension of the above bearing cap of direction of main axis cross section, constitute the three-support point, this three-support point can guarantee that in use crankshaft hole is not yielding.
Have again, the clamping bolt between described bearing cap and the cylinder body is located on the position of pressing close to crankshaft hole of described bearing cap.The center line of clamping bolt is compared with crankshaft hole radius sum than bolt with the distance of crankshaft center line, grows 30 millimeters at most.
The durable and efficient piston type equipment that the utility model provides is by embedding several existing open type piston ring extruding in the piston ring, the setting that interlaces of the opening of each piston ring, see that on the whole can form a nothing leakage metal seal is the portless piston ring, and in the device working procedure, several piston rings press together under the effect of the pressure reduction of piston both sides tightly, so can obtain well sealing between piston and cylinder body.When in use making the gap of piston and cylinder body become big, can change into the purpose that expansion characteristics reaches automatic compensation gap naturally by the elasticity of metallic piston ring because of wearing and tearing.This piston is promptly tight reliable with the sealing configuration of cylinder body, and its structure is very convenient again.Insoluble problem can be solved by very simple structure in the utility model in the prior art.And just can solve the problem on deformation of bent axle axis hole by the length that prolongs the bearing cap on the crankcase.In addition, the bearing cap both sides are prolonged, the part of prolongation can guarantee that crankshaft hole is indeformable to offset the outburst stress from piston head completely.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
The structural representation of a specific embodiment-lifting hydraulic pressure installation of the durable and efficient piston type equipment that Fig. 1 provides for the utility model;
The cross-sectional configuration schematic representation that Fig. 2 is superimposed together for the several piston rings in the hydraulic pressure installation shown in Figure 1;
Fig. 3 is the structural representation that several piston rings combine with piston in the hydraulic pressure installation shown in Figure 1;
The structural representation of another specific embodiment-unidirectional oil hydraulic pump of the durable and efficient piston type equipment that Fig. 4 provides for the utility model;
Fig. 5 is the end-face structure schematic representation of oil hydraulic pump shown in Figure 4, wherein shows crankcase and the crankshaft bearing seat on it and the combining structure schematic representation of bearing cap.
Embodiment
As shown in Figure 1, the durable and efficient piston type equipment that the utility model provides is hydraulic pressure installation, in more piece piston type lifting cylinder, comprise and be provided with the wide earth's axis 1 of stablizing the lifting railway carriage, itself and chassis auxiliary frame or vehicle frame 5 are articulated and connected, oil inlet and outlet 2 is connected (not shown) with control valve oil inlet and outlet capable of reversing with pipe, high pressure oil is entered in the oil cylinder chamber of hydraulic cylinder 3, be provided with piston type cylinder barrel 4 in the oil hydraulic cylinder 3, on piston type cylinder barrel 4, be provided with piston ring groove, in this piston ring groove, be provided with three opening metallic piston rings 41, form the portless piston ring and (see Fig. 1,2 and 3) will seal fully with the gap of cylinder barrel 3, high pressure oil in oil hydraulic cylinder 3 oil pockets of sealing can only pass in and out in the oil hydraulic cylinder cavity of resorption, it is up that high pressure oil just must promote piston 4, shift onto when the first segment oil hydraulic cylinder and to push away under the effect of stroke end mouthfuls 42 when motionless, push away later some joint pistons and piston rod again with identical reason.
The piston ring packing device that the utility model provides goes for motor, internal-combustion engine, air compressor, oil hydraulic pump etc. to have on the device of cylinder piston mechanism.
Be that this durable and efficient piston type equipment is used for the example on the unidirectional oil hydraulic pump as shown in Figure 4.
Comprise the pump cylinders 9 on the pump housing, the pump housing, the piston 7 and the reciprocating eccentric wheel 91 of the driven plunger that is connected with automotive power in the cylinder body at the one-way fashion oil hydraulic pump, the bilateral symmetry of eccentric wheel 91 be provided with two cover pump cylinders 9, in pump cylinders 9, be respectively equipped with piston 7, on piston 7, also be provided with the seal ring shown in Fig. 2,3, it can be two, it also can be four or five, the several openings gap-clearance of piston rings interlaces and is arranged side by side in a piston ring groove, has formed the portless piston ring with sealing fully between piston and one-way pump cylinder barrel 9 inwalls.Under the rotation of one-way pump eccentric shaft 8 drove, piston moved reciprocatingly at one-way pump cylinder barrel 9 inwalls.
Eccentric shaft 8 is bearing on the bearing support 92 on the crankcase 91, bearing support is provided with bearing cap 93, as shown in Figure 5, the outward edge of this bearing cap 93 prolongs on the direction of cutting junction plane perpendicular to the axial direction of eccentric shaft 8 and the center line that is parallel to eccentric shaft 8 axis holes, and making the distance of the described crankshaft center of outward edge distance of the bearing cap 93 that has prolonged is 2/3 of bent axle diameter at least.In example shown in Figure 5, prolong the length of described bearing cap to greatest extent, the outward edge of the bearing cap that has prolonged is alignd with the outward edge of crankcase.
The prolongation of bearing cap, the prolongation that can make bearing cap produces resiliently deformable (deformation direction is seen arrow 02 among Fig. 5) when the outburst stress (arrow 01 among Fig. 5) of piston at work when occurring, offset this outburst stress with this.
The thickness of bearing cap 93 is bigger near eccentric shaft 8 places, 8 places are less away from eccentric shaft, make to form the triangular-section, constitute the three-support point, guarantee that in use crankshaft hole is not yielding in the extension of the above bearing cap of direction of main axis cross section.
Clamping bolt 94 between bearing cap 93 and the cylinder body is located on the position of pressing close to crankshaft hole of bearing cap.
The center line of this clamping bolt is compared with crankshaft hole radius sum than bolt with the distance of crankshaft center line, grows 30 millimeters at most.Grow 10 centimetres in the present embodiment.
Claims (6)
1, a kind of durable and efficient piston type equipment, comprise cylinder body, piston, piston ring, connecting rod, bent axle and crankcase, described piston is located in the described cylinder body, the sidewall of described piston is provided with piston ring groove, sheathed fixing described piston ring in this piston ring groove, described piston ring and described cylinder body constitute sealing configuration, described piston is articulated and connected by an end of piston rod on it and described connecting rod, the other end of described connecting rod and described bent axle are articulated and connected, described crankshaft support is fixed on the bearing support on the described crankcase, and this bearing support is provided with bearing cap; It is characterized in that:
Be close to two or more opening piston rings of packing into side by side in the described piston ring groove that on described piston, is provided with, the setting that interlaces of the opening portion of each described opening piston ring, each piston ring seals collar extension mutually, making does not have the gap-clearance of piston rings of perforation on the axial direction of piston, reaching does not axially have leak port.
2, durable and efficient piston type equipment according to claim 1, it is characterized in that: prolong the length of described bearing cap on the direction of cutting junction plane perpendicular to the axial direction of described bent axle and the center line that is parallel to the bent axle axis hole, making the distance of the described crankshaft center of outward edge distance of the bearing cap that has prolonged is 2/3 of bent axle diameter at least.
3, durable and efficient piston type equipment according to claim 2 is characterized in that: prolong the length of described bearing cap, the outward edge of the bearing cap that has prolonged is alignd with the outward edge of crankcase.
4, durable and efficient piston type equipment according to claim 1 and 2, it is characterized in that: the thickness of described bearing cap is for bigger near the bent axle place, the place is less away from bent axle, make and form the triangular-section in the extension of the above bearing cap of direction of main axis cross section, constitute the three-support point, this three-support point can guarantee that in use crankshaft hole is not yielding.
5, durable and efficient piston type equipment according to claim 1 and 2, it is characterized in that: the clamping bolt between described bearing cap and the cylinder body is located on the position of pressing close to crankshaft hole of described bearing cap.
6, durable and efficient piston type equipment according to claim 5 is characterized in that: the center line of described clamping bolt is compared with crankshaft hole radius sum than bolt with the distance of crankshaft center line, grows 30 millimeters at most.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420117841 CN2913749Y (en) | 2004-10-25 | 2004-10-25 | High-efficiency durable piston type equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420117841 CN2913749Y (en) | 2004-10-25 | 2004-10-25 | High-efficiency durable piston type equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913749Y true CN2913749Y (en) | 2007-06-20 |
Family
ID=38168348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420117841 Expired - Fee Related CN2913749Y (en) | 2004-10-25 | 2004-10-25 | High-efficiency durable piston type equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913749Y (en) |
-
2004
- 2004-10-25 CN CN 200420117841 patent/CN2913749Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model |
Correction item: Address Correct: No. 16-8, wax mountain road, Ji'nan, Shandong False: No. 16-8, wax mountain road, Ji'nan, Shanxi Number: 25 Page: The title page Volume: 23 |
|
| CU03 | Publication of corrected utility model |
Correction item: Address Correct: No. 16-8, wax mountain road, Ji'nan, Shandong False: No. 16-8, wax mountain road, Ji'nan, Shanxi Number: 25 Page: 375 Volume: 23 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |