CN214616893U - Transmission mechanism and plunger pump - Google Patents
Transmission mechanism and plunger pump Download PDFInfo
- Publication number
- CN214616893U CN214616893U CN202022914919.5U CN202022914919U CN214616893U CN 214616893 U CN214616893 U CN 214616893U CN 202022914919 U CN202022914919 U CN 202022914919U CN 214616893 U CN214616893 U CN 214616893U
- Authority
- CN
- China
- Prior art keywords
- push rod
- turntable
- transmission mechanism
- push
- elastic component
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 12
- 230000033001 locomotion Effects 0.000 abstract description 7
- 238000005086 pumping Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a pumping system technical field discloses a plunger pump and drive mechanism thereof, include: the front end and the rear end of the shell are respectively provided with a mounting hole; the front end and the rear end of the push rod are respectively installed in the installation holes at the front end and the rear end of the shell in a sliding manner, and a push cavity is formed in the push rod; the driving mechanism comprises a driving shaft and a turntable, the turntable is rotatably arranged in the pushing cavity, the driving shaft is connected with the turntable, and the rotating axis of the driving shaft is not coincident with the central axis of the turntable; wherein, the rear side department that lies in the promotion chamber on the push rod is equipped with elastic component, and the front side of carousel offsets with the front side that promotes the chamber, and the rear side and the elastic component elasticity of carousel offset, the drive shaft rotates and can promote the carousel and remove, and then promotes push rod reciprocating motion front and back. The utility model provides a plunger pump and drive mechanism thereof through set up elastic component between the rear side at push rod and carousel, enough reduces the vibration of transmission in-process, and then reduces the noise to guarantee drive mechanism's life and service reliability.
Description
Technical Field
The utility model relates to a transmission system technical field with shock attenuation effect especially is used for the drive mechanism of plunger pump.
Background
In the existing pumping structure, a cam assembly or an eccentric shaft connecting rod assembly is usually adopted as a transmission mechanism, the circular motion of a rotary table is converted into linear motion, particularly, when a plunger pump is driven, the load is changed in a circulating mode, assembly gaps exist in the cam assembly and the eccentric shaft connecting assembly in the motion process, meanwhile, due to the requirement of high strength of transmission power, the matching parts are usually made of metal materials, periodic vibration and noise are increased, great noise pollution is generated to the environment, and meanwhile, the service life and the service reliability of the transmission mechanism can be damaged.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a drive mechanism, it can reduce the vibration among the transmission process, and then reduce the noise to guarantee drive mechanism's life and use reliability. It is another object of the present application to provide a plunger pump comprising the above-described transmission mechanism.
The purpose of the application is realized by the following technical scheme:
a transmission mechanism, comprising:
the front end and the rear end of the shell are respectively provided with a mounting hole;
the front end and the rear end of the push rod are respectively installed in the installation holes at the front end and the rear end of the shell in a sliding mode, and a push cavity is formed in the push rod;
the driving mechanism comprises a driving shaft and a turntable, the turntable is rotatably arranged in the pushing cavity, the driving shaft is connected with the turntable, and the rotating axis of the driving shaft is parallel to and does not coincide with the central axis of the turntable;
the rear side of the push rod, which is positioned in the push cavity, is provided with an elastic component, the front side of the turntable is abutted against the front side of the push cavity, the rear side of the turntable is elastically abutted against the elastic component, and the drive shaft rotates to push the turntable to move so as to push the push rod to reciprocate back and forth.
In some embodiments of the present application, the elastic component includes an elastic member and an abutting member, the elastic member is connected to the push rod, the abutting member is connected to the elastic member, and the elastic component elastically abuts against the rear side of the turntable through the abutting member.
In some embodiments of the present application, the abutting member is in point contact or line contact with the turntable.
In some embodiments of the present application, the abutment is spherical or cylindrical.
In some embodiments of the present application, a sliding groove is formed on the push rod, and the elastic member and the abutting member are both disposed in the sliding groove.
In some embodiments of this application, the intercommunication has been seted up to the rear end face of push rod the through-hole in promotion chamber, the through-hole in-connection has the adjusting and locating piece, the adjusting and locating piece with inject between the through-hole and become the spout, just the mounted position of adjusting and locating piece can be followed the direction of through-hole is adjusted.
In some embodiments of the present application, the turntable is a rolling bearing sleeved outside the driving shaft.
In some embodiments of the present application, the elastic member is deformed by 0.1mm to 100mm when the driving shaft rotates.
In some embodiments of the present application, the push rod is located the preceding, back both ends department of carousel all overlaps and is equipped with slide bearing, slide bearing install in the mounting hole of casing.
In some embodiments of the present application, the push rod includes a driving portion, a front connection portion connected to a front side of the driving portion, and a rear connection portion connected to a rear side of the driving portion;
the push rod cavity is arranged on the driving part, and the front connecting part and the rear connecting part are connected with the shell in a sliding mode.
A plunger pump comprising a transmission mechanism as claimed in any one of the preceding claims.
The utility model provides a drive mechanism and including this drive mechanism's plunger pump, be equipped with elastic component between the rear side of carousel and push rod, make to adopt elasticity to offset between carousel rear side and the push rod through elastic component, utilize elastic component's pretightning force effect promptly, make the carousel rotate the in-process, its front side keeps in close contact with the push rod all the time, thereby guarantee driven reliability, and improve drive mechanism's effective life, and elastic component can absorb the vibration energy of drive mechanism transmission in-process, thereby the noise reduction.
Drawings
The present application is described in further detail below in connection with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are intended to be conceptual in nature or configuration of the described objects and may contain exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is a transverse cross-sectional view of one embodiment of the transmission of the present application;
FIG. 2 is a longitudinal cross-sectional view of one embodiment of the transmission of the present application.
In the figure, 1, a housing; 11. a mounting cavity; 12. mounting holes; 2. a push rod; 21. a push chamber; 22. a chute; 23. a through hole; 24. adjusting a positioning block; 25. a drive section; 26. a front connecting part; 27. a rear connection portion; 3. a drive mechanism; 31. a drive shaft; 32. a turntable; 4. an elastic component; 41. an elastic member; 42. an abutting member; 5. a sliding bearing.
Detailed Description
Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the descriptions are illustrative only, exemplary, and should not be construed as limiting the scope of the application.
First, it should be noted that the orientations of top, bottom, upward, downward, and the like referred to herein are defined with respect to the orientation in the respective drawings, are relative concepts, and thus can be changed according to different positions and different practical states in which they are located. These and other orientations, therefore, should not be used in a limiting sense.
It should be noted that the term "comprising" does not exclude other elements or steps and the "a" or "an" does not exclude a plurality.
Furthermore, it should be further noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application not directly mentioned herein.
It will be further understood that the terms "first," "second," and the like, are used herein to describe various information and should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present application.
It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.
The embodiment of the present application provides a plunger pump, which includes a transmission mechanism, specifically as shown in fig. 1 and fig. 2, the transmission mechanism includes: the device comprises a shell 1, a push rod 2, a driving mechanism and an elastic component 4; the inside of the shell 1 is provided with a mounting cavity 11, and the front end and the rear end of the shell 1 are respectively provided with a mounting hole 12; the push rod 2 is arranged in the mounting cavity 11, the front end and the rear end of the push rod 2 are respectively slidably mounted in the mounting holes 12 at the front end and the rear end of the shell 1, the push cavity 21 is formed in the push rod 2, the driving mechanism comprises a driving shaft 31 and a turntable 32, the turntable 32 is rotatably arranged in the push cavity 21, the driving shaft 31 is connected with the turntable 32, and the rotating axis of the driving shaft 31 is parallel to and does not coincide with the central axis of the turntable 32.
Specifically, the front side of the rotary disk 32 abuts against the front side of the pushing cavity 21, and the rear side of the rotary disk 32 abuts against the elastic component 4 elastically, so that when an external power source (such as a motor) drives the driving shaft 31 to rotate, since the rotary disk 32 and the driving shaft 31 are eccentrically arranged, and the push rod 2 is connected with the housing 1 in a sliding manner, the push rod 2 can be finally pushed to linearly reciprocate along the front-rear direction of the housing 1.
Based on above-mentioned technical scheme, owing to be equipped with elastic component 4 between the rear side of carousel 32 and push rod 2, make through elastic component 4 and adopt elasticity between carousel 32 rear side and the push rod 2 to offset, utilize elastic component 4's pretightning force effect promptly, make carousel 32 rotate the in-process, its front side keeps in close contact with push rod 2 all the time, thereby guarantee driven reliability, and improve drive mechanism's effective life, and elastic component 4 can absorb the vibration energy of drive mechanism transmission in-process, thereby noise reduction. In this embodiment, if the push rod 2 and the turntable 32 do not generate a gap during the periodic rotation of the driving shaft 31, the pre-tightening force setting value of the elastic component 4 is only required to be greater than the restoring force required by the push rod 2.
In addition, in this embodiment, because the stroke of the elastic component 4 is very small in the periodic movement process of the turntable 32, and the elastic component can be regarded as an elastic structure with static pretightening force, the performance requirements of the elastic component 4 on high strength, fatigue resistance and the like caused by the large stroke of the elastic component 4 are greatly reduced.
Specifically, in the present embodiment, the amount of deformation of the elastic member 4 during the rotation of the drive shaft 31 is controlled to 0.1mm to 100 mm.
This application can be to vibration energy absorption and decay through rationally chooseing for use the damping coefficient of elastic component 4, specifically, the natural frequency of shaking/compel the frequency of shaking > 2.
Specifically, in this embodiment, in order to ensure that the elastic component 4 reliably abuts against the rotary disc 32, the elastic component 4 includes an elastic member 41 and an abutting member 42, the elastic member 41 is connected to the push rod 2, the abutting member 42 is connected to the elastic member 41, and the elastic component 4 elastically abuts against the rear side of the rotary disc through the abutting member 42, as shown in fig. 1 and fig. 2.
In addition, in order to reduce the friction force of mutual contact, the contact piece 42 and the turntable 32 are in point contact or line contact; since the outer peripheral wall of the rotary disk 32 is a cylindrical surface, the surface of the abutting member 42 contacting the push rod 2 is an arc surface or a flat surface.
Specifically, the abutment member 42 is spherical as a whole, that is, the abutment member 42 is a ball, and the abutment member 42 can maintain point contact with the dial 32 regardless of the rotation. Illustratively, when the abutment member 42 is a ball, the friction coefficient of the abutment member 42 is less than Ra6.3, the diameter of the abutment member 42 is 0.5-200mm, and the abutment member 42 can be made of a material with certain strength, such as metal, plastic, etc., and does not deform greatly under pressure.
Alternatively, the abutment member 42 may be provided in a cylindrical shape, with the front end face of the abutment member 42 being in line contact with the dial 32.
Referring to fig. 1 and 2, the push rod 2 is provided with a sliding groove 22 communicated with the push cavity 21, the elastic member 41 and the abutting member 42 are both disposed in the sliding groove 22, one end of the elastic member 41 abuts against the bottom of the sliding groove 22, and the other end of the elastic member 41 abuts against the elastic member 41, so that the elastic member 41 and the abutting member 42 are only required to be sequentially disposed in the sliding groove 22 during installation, the assembly is simple, the elastic component 4 is accommodated in the push rod 2, and the structure can be simplified.
In addition, for convenience of processing, manufacturing and assembly, a through hole 23 communicated with the push cavity 21 is formed in the rear end face of the push rod 2, an adjusting positioning block 24 is connected in the through hole 23, a sliding groove 22 is defined between the adjusting positioning block 24 and the through hole 23, the adjusting positioning block 24 can be adjusted to move along the direction of the through hole 23, the pre-tightening force of the elastic component 4 can be adjusted by adjusting the installation position of the adjusting positioning block 24, and the rotary disc 32 is guaranteed to be always in contact with the push rod 2 in the movement process by reasonably setting the pre-tightening force of the elastic component 4.
Exemplarily, the adjusting and positioning block 24 is connected with the push rod 2 by a thread, during assembly, the elastic member 41 and the abutting member 42 are firstly disposed in the through hole 23, and then the adjusting and positioning block 24 is mounted on the push rod 2 from the rear end of the through hole 23, so that the installation and maintenance are convenient, and the position of the adjusting and positioning block 24 can be adjusted by rotating the adjusting and positioning block 24.
By way of example, the elastic member 41 may be a spring, a spring plate, or the like, and when a spring is used, the outer diameter of the spring is smaller than the diameter of the roller.
Specifically, in order to further reduce the vibration during the transmission, the turntable 32 is a rolling bearing sleeved outside the driving shaft 31, an inner ring of the rolling bearing is fixedly installed outside the driving shaft 31, and an outer ring of the rolling bearing is rotatably connected with the inner ring thereof.
In this embodiment, in order to reduce the friction between the push rod 2 and the housing 1 during the periodic sliding process, the sliding bearings 5 are respectively sleeved at the front and rear ends of the push rod 2 located on the turntable 32, and the sliding bearings 5 are installed in the installation holes 12 of the housing 1.
More specifically, referring to fig. 2, the push rod 2 includes a driving portion 25, a front connecting portion 26 connected to a front side of the driving portion 25, and a rear connecting portion 27 connected to a rear side of the driving portion 25; the cavity of the push rod 2 is arranged on the driving part 25, the front connecting part 26 and the rear connecting part 27 are connected with the shell 1 in a sliding way, and the front end of the pump body is usually connected with the piston of the plunger pump and used for driving the piston to do linear reciprocating motion; the sliding bearing 5 is sleeved outside each of the front connecting portion 26 and the rear connecting portion 27, and the sliding groove 22 is opened in the rear connecting portion 27.
To sum up, the plunger pump and drive mechanism thereof of this application are equipped with elastic component between the rear side of carousel and push rod, make through elastic component adopt elasticity between carousel rear side and the push rod to offset, utilize elastic component's pretightning force effect promptly, make the carousel rotate the in-process, its front side keeps in close contact with the push rod all the time, thereby guarantee driven reliability, and improve drive mechanism's effective life, and elastic component can absorb the vibration energy of drive mechanism transmission in-process, thereby noise reduction.
This written description discloses the application with reference to the drawings, and also enables one skilled in the art to practice the application, including making and using any devices or systems, using suitable materials, and using any incorporated methods. The scope of the present application is defined by the claims and includes other examples that occur to those skilled in the art. Such other examples are to be considered within the scope of the claims as long as they include structural elements that do not differ from the literal language of the claims, or that they include equivalent structural elements with insubstantial differences from the literal language of the claims.
Claims (11)
1. A transmission mechanism, comprising:
the front end and the rear end of the shell are respectively provided with a mounting hole;
the front end and the rear end of the push rod are respectively installed in the installation holes at the front end and the rear end of the shell in a sliding mode, and a push cavity is formed in the push rod;
the driving mechanism comprises a driving shaft and a turntable, the turntable is rotatably arranged in the pushing cavity, the driving shaft is connected with the turntable, and the rotating axis of the driving shaft is parallel to and does not coincide with the central axis of the turntable;
the rear side of the push rod, which is positioned in the push cavity, is provided with an elastic component, the front side of the turntable is abutted against the front side of the push cavity, the rear side of the turntable is elastically abutted against the elastic component, and the drive shaft rotates to push the turntable to move so as to push the push rod to reciprocate back and forth.
2. The transmission mechanism as claimed in claim 1, wherein the elastic member includes an elastic member and an abutting member, the elastic member is connected to the push rod, the abutting member is connected to the elastic member, and the elastic member elastically abuts against the rear side of the turntable through the abutting member.
3. The transmission mechanism as claimed in claim 2, wherein the abutment member is in point or line contact with the turntable.
4. A transmission mechanism as claimed in claim 3, wherein the abutment member is spherical or cylindrical.
5. The transmission mechanism as claimed in claim 2, wherein the push rod is provided with a sliding slot, and the elastic member and the abutting member are both disposed in the sliding slot.
6. The transmission mechanism as claimed in claim 5, wherein a through hole communicating with the pushing cavity is formed in a rear end face of the push rod, an adjusting positioning block is connected in the through hole, the sliding groove is defined between the adjusting positioning block and the through hole, and an installation position of the adjusting positioning block can be adjusted along a direction of the through hole.
7. The transmission mechanism according to any one of claims 1 to 6, wherein the turntable is a rolling bearing sleeved outside the drive shaft.
8. The transmission mechanism as claimed in any one of claims 1 to 6, wherein the resilient member is deformed by an amount of 0.1mm to 100mm when the drive shaft is rotated.
9. The transmission mechanism according to claim 1, wherein the push rod is sleeved with sliding bearings at both the front and rear ends of the rotary plate, and the sliding bearings are installed in the installation holes of the housing.
10. The transmission mechanism as claimed in claim 1, wherein the push rod includes a driving portion, a front connecting portion connected to a front side of the driving portion, and a rear connecting portion connected to a rear side of the driving portion;
the push rod cavity is arranged on the driving part, and the front connecting part and the rear connecting part are connected with the shell in a sliding mode.
11. A plunger pump, characterized in that it comprises a transmission according to any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022914919.5U CN214616893U (en) | 2020-12-07 | 2020-12-07 | Transmission mechanism and plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022914919.5U CN214616893U (en) | 2020-12-07 | 2020-12-07 | Transmission mechanism and plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214616893U true CN214616893U (en) | 2021-11-05 |
Family
ID=78429389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022914919.5U Active CN214616893U (en) | 2020-12-07 | 2020-12-07 | Transmission mechanism and plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214616893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443469A (en) * | 2020-12-07 | 2021-03-05 | 深圳海卓科赛医疗有限公司 | Transmission mechanism and plunger pump |
-
2020
- 2020-12-07 CN CN202022914919.5U patent/CN214616893U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443469A (en) * | 2020-12-07 | 2021-03-05 | 深圳海卓科赛医疗有限公司 | Transmission mechanism and plunger pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214616893U (en) | Transmission mechanism and plunger pump | |
| KR20200031302A (en) | Scroll compressor | |
| CN112443469A (en) | Transmission mechanism and plunger pump | |
| EP0778416A2 (en) | Piston retaining mechanism for a hydraulic pump | |
| CN102192128B (en) | Compressor and refrigerator with the same | |
| US5490444A (en) | Piston pump with improved hold-down mechanism | |
| CN103154512A (en) | High-pressure pump for a fuel injection device | |
| JP2003106239A (en) | Detent structure of tappet in fuel system | |
| US4981419A (en) | Wobble plate type refrigerant compressor having a thrust bearing assembly for a wobble plate support | |
| CN212130751U (en) | Reciprocating hydraulic diaphragm pump | |
| CN203009074U (en) | Auxiliary device of engine crankshaft | |
| CN114776583B (en) | Combined roller device for roller rotor pump and centering positioning method | |
| JP6593945B1 (en) | Rotary cylinder device | |
| JP3975730B2 (en) | Scroll compressor | |
| CN108980040A (en) | The pump housing and sliding-vane compressor | |
| CN216077541U (en) | Internal and external hyperboloid cam transmission mechanism for constant flow pump | |
| CN108194356B (en) | Pump body and compressor | |
| CN108775345B (en) | Linear bearing system capable of adjusting pretightening force and eliminating gaps | |
| CN209414075U (en) | Drive mechanism and compressor with same | |
| CN210564922U (en) | Wear-resistant and oil-resistant swash plate type axial plunger pump | |
| CN217501890U (en) | Linear reciprocating mechanism and plunger pump | |
| CN214742046U (en) | Scroll compressor, air conditioner and vehicle | |
| CN108412728B (en) | A kind of driving mechanism of reciprocating compressor | |
| CN201779020U (en) | Thrust structure of rotary compressor | |
| CN219454303U (en) | Compression piston assembly structure and rotary Stirling refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |