CN204738949U - Diaphragm type vacuum pump - Google Patents
Diaphragm type vacuum pump Download PDFInfo
- Publication number
- CN204738949U CN204738949U CN201520403903.4U CN201520403903U CN204738949U CN 204738949 U CN204738949 U CN 204738949U CN 201520403903 U CN201520403903 U CN 201520403903U CN 204738949 U CN204738949 U CN 204738949U
- Authority
- CN
- China
- Prior art keywords
- crank
- mounting hole
- bent axle
- pump
- eardrum
- 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
- 210000003454 tympanic membrane Anatomy 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000005461 lubrication Methods 0.000 abstract description 6
- 239000000945 filler Substances 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 7
- 239000000314 lubricant Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a diaphragm type vacuum pump, including the pump body and pump cover, the fitting surface of the pump body and pump cover is equipped with the eardrum, the inside crank link mechanism transmission connection eardrum that is equipped with of the pump body, crank link mechanism includes adapter sleeve, crank, bent axle, and adapter sleeve one end is connected eardrum, the adapter sleeve other end pass through the cylindric lock connecting crank, and crank drive connects the bent axle, the crank is equipped with the installation the first mounting hole and the cooperation of cylindric lock the second mounting hole of bent axle, the lateral wall of first mounting hole is equipped with first oil filler point, and the lateral wall of second mounting hole is equipped with the second oil filler point. This scheme provides a diaphragm type vacuum pump, through reasonable structural design, lets the crank can obtain the sufficient lubrication at the during operation, and the rotary resistance is little, and is longe -lived.
Description
Technical field
The utility model relates to a kind of diaphragm-type vacuum pump, belongs to auto parts machinery field.
Background technique
Diaphragm-type vacuum pump is to braking automobile power-assisted use, and diaphragm-type vacuum pump, rely on connecting rod to-and-fro motion by the rotation of eccentric shaft, barrier film is activated by the to-and-fro motion of connecting rod with repeated admission and exhaust.This connecting rod mechanism is exactly so-called connecting rod usually, because the two ends of crank are all rotatably connected to component, therefore rotational resistance crank produced is larger, and traditional connecting rod often ignores this defect, cause on crank that not only heating value is large, and serious wear, the life-span reduces greatly.Therefore study how structure reasonable in design makes crank and other part cooperation places play sufficient lubrication is extremely necessary.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of diaphragm-type vacuum pump, and by rational structural design, allow crank operationally can obtain sufficient lubrication, rotational resistance is little, and the life-span is long.
For achieving the above object, the utility model provides following technological scheme: a kind of diaphragm-type vacuum pump, comprise the pump housing and pump cover, the fitting surface of the pump housing and pump cover is provided with eardrum, pump body is provided with connecting rod and is in transmission connection eardrum, described connecting rod comprises connecting sleeve, crank, bent axle, connecting sleeve one end connects described eardrum, the connecting sleeve the other end is by straight pin connecting crank, crank drive connects described bent axle, described crank is provided with the first mounting hole installing described straight pin and the second mounting hole coordinating described bent axle, the sidewall of the first mounting hole is provided with the first oil hole, the sidewall of the second mounting hole is provided with the second oil hole.
Preferably, described first oil hole is positioned at the first mounting hole top side wall, and described second oil hole has two and is symmetricly set on the second mounting hole, and the angle of two the second oil holes is 90 degree.
Preferably, described bent axle is rotatably connected on the pump housing by bearing, and described bearing outer wall is provided with fixed groove, and the pump housing is connected with fastening screw trip bolt, and fastening screw trip bolt head stretches in fixed groove.
By adopting technique scheme, first oil hole and the second oil hole are set, at crank along with in bent axle reciprocatory movement, lubricant oil in the pump housing enters in the sidewall spacers of mounting hole by oil hole, along with bent axle and relatively rotating of straight pin are assigned in the circumferential side wall of mounting hole lubricate to have, are realized sufficient lubrication, be partly thrown out of mounting hole again by lubricant oil in high-speed motion, take away the metallic dust produced in mounting hole gap, decrease the wearing and tearing of mounting hole.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is erection drawing of the present utility model;
Fig. 2 is the sectional view of the utility model connecting rod;
Fig. 3 is the front view of the utility model connecting rod;
Fig. 4 is the parts drawing of the utility model crank;
Fig. 5 is the enlarged view at A place in the utility model Fig. 1.
Accompanying drawing illustrates: 1, the pump housing; 2, pump cover; 3, eardrum; 4, connecting sleeve; 5, crank; 5a, the first oil hole; 5b, the second oil hole; 5c, oil storage tank; 5d, the first mounting hole; 5e, the second mounting hole; 6, bent axle; 7, straight pin; 8, bearing; 8a, fixed groove; 9, fastening screw trip bolt.
Embodiment
A kind of diaphragm-type vacuum pump, comprise the pump housing 1 and pump cover 2, the fitting surface of the pump housing 1 and pump cover 2 is provided with eardrum 3, the pump housing 1 inside is provided with crank 5 linkage transmission and connects eardrum 3, crank 5 linkage mechanism comprises connecting sleeve 4, crank 5, bent axle 6, connecting sleeve 4 one end connects described eardrum 3, connecting sleeve 4 the other end is by straight pin 7 connecting crank 5, crank 5 is in transmission connection described bent axle 6, crank 5 is provided with the first mounting hole 5d installing straight pin 7 and the second mounting hole 5e coordinating bent axle 6, the sidewall of the first mounting hole 5d is provided with the first oil hole 5a, the sidewall of the second mounting hole 5e is provided with the second oil hole 5b.First oil hole 5a and the second oil hole 5b is set, at crank 5 along with in bent axle 6 reciprocatory movement, lubricant oil in the pump housing 1 enters in the sidewall spacers of mounting hole by oil hole, along with bent axle 6 and relatively rotating of straight pin 7 are assigned to lubricate to have in the circumferential side wall of mounting hole, realize sufficient lubrication, partly be thrown out of mounting hole again by lubricant oil in high-speed motion, take away the metallic dust produced in mounting hole gap, decrease the wearing and tearing of mounting hole.
Wherein, the first oil hole 5a is positioned at the first mounting hole 5d top side wall, and the second oil hole 5b has two and is symmetricly set on the second mounting hole 5e, and the angle of two the second oil hole 5b is 90 degree.Owing to not having connected element above the first oil hole 5a, the first oil hole 5a can directly get through, and lubricant oil can enter into the first oil hole 5a by self gravitation effect, also can realize lubrication when shutting down.And the body of rod owing to being crank 5 above the second oil hole 5b, therefore side can only be arranged on, being symmetrical arranged is moving equilibrium in order to ensure crank 5, and angle be the order of 90 degree be intensity in order to ensure crank 5, because the power that so two the second oil hole 5b are subject to can partly be cancelled out each other, avoid producing larger stress to crank 5.First oil hole 5a and the second oil hole 5b can also arrange oil storage tank 5c, the diameter of oil storage tank 5c is greater than the diameter of oil hole, arranging oil storage tank 5c not only facilitates oil to enter into oil hole, and again crank 5 stop motion time can also store a part of lubricant oil, can not bite be produced when next time starts shooting.
Wherein, described bent axle 6 is rotatably connected on the pump housing 1 by bearing 8, and described bearing 8 outer wall is provided with fixed groove 8a, the pump housing 1 is connected with fastening screw trip bolt 9, and fastening screw trip bolt 9 head stretches in fixed groove 8a.Bearing 8 does not adopt the mode of interference fit, and locates relevant position by fastening screw trip bolt 9, not only facilitate dismounting and assembling, and positioning precision is better, it also avoid the distortion of striking and causing the pump housing 1 when last item holds 8 simultaneously.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a diaphragm-type vacuum pump, comprise the pump housing and pump cover, the fitting surface of the pump housing and pump cover is provided with eardrum, pump body is provided with connecting rod and is in transmission connection eardrum, described connecting rod comprises connecting sleeve, crank, bent axle, connecting sleeve one end connects described eardrum, the connecting sleeve the other end is by straight pin connecting crank, crank drive connects described bent axle, it is characterized in that: described crank is provided with the first mounting hole installing described straight pin and the second mounting hole coordinating described bent axle, the sidewall of the first mounting hole is provided with the first oil hole, the sidewall of the second mounting hole is provided with the second oil hole.
2. diaphragm-type vacuum pump according to claim 1, is characterized in that: described first oil hole is positioned at the first mounting hole top side wall, and described second oil hole has two and is symmetricly set on the second mounting hole, and the angle of two the second oil holes is 90 degree.
3. diaphragm-type vacuum pump according to claim 2, is characterized in that: described bent axle is rotatably connected on the pump housing by bearing, and described bearing outer wall is provided with fixed groove, and the pump housing is connected with fastening screw trip bolt, and fastening screw trip bolt head stretches in fixed groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520403903.4U CN204738949U (en) | 2015-06-11 | 2015-06-11 | Diaphragm type vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520403903.4U CN204738949U (en) | 2015-06-11 | 2015-06-11 | Diaphragm type vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204738949U true CN204738949U (en) | 2015-11-04 |
Family
ID=54420688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520403903.4U Expired - Fee Related CN204738949U (en) | 2015-06-11 | 2015-06-11 | Diaphragm type vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204738949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383707A (en) * | 2015-11-30 | 2016-03-09 | 中国航空工业集团公司沈阳飞机设计研究所 | Aviation pressure refueling adapter |
-
2015
- 2015-06-11 CN CN201520403903.4U patent/CN204738949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383707A (en) * | 2015-11-30 | 2016-03-09 | 中国航空工业集团公司沈阳飞机设计研究所 | Aviation pressure refueling adapter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20170611 |