CN207420853U - A kind of screw-rod structure of Quimby pump - Google Patents
A kind of screw-rod structure of Quimby pump Download PDFInfo
- Publication number
- CN207420853U CN207420853U CN201720999387.5U CN201720999387U CN207420853U CN 207420853 U CN207420853 U CN 207420853U CN 201720999387 U CN201720999387 U CN 201720999387U CN 207420853 U CN207420853 U CN 207420853U
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- Prior art keywords
- screw
- driving shaft
- pump
- rod structure
- helical tooth
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Abstract
The utility model is related to pumping units.The purpose of this utility model is to provide a kind of screw-rod structure of the Quimby pump of high stability.The technical solution adopted is that：A kind of screw-rod structure of Quimby pump, including the driving shaft and driven shaft being arranged in pump case, one end of the driving shaft is power connector end, and the other end is provided with by actively shaft-driven grease pump；Pipeline is further included, one end of the pipeline and the lubricating oil outlet of grease pump connect, and the other end is opposite with the position that the screw-rod structure needs of Quimby pump lubricate.Influence caused by the utility model avoids artificial incorrect operation, realizes the forced feed lubrication to screw pump joint part, greatly improves the stability of Quimby pump operation.
Description
Technical field
The utility model is related to pumping units, and in particular to a kind of screw-rod structure of Quimby pump.
Background technology
Screw pump is volume type rotor pump, it is to change to suck by the volume of the annular seal space formed by screw and bushing
With discharge liquid.Screw pump by screw rod number be divided into single-screw (single screw) pump, it is double, three and five-screw pump.The characteristics of screw pump is flow
Steadily, pressure fluctuation is small, has low suction capacity, noise, efficient, long lifespan, reliable operation.
At present, conventional Quimby pump pumped (conveying) medium excessively in, pressure is no more than 4.0Mpa, prolonged continuous
Under conveying, since driving and driven bending shaft deforms, the vibration for causing pumping unit is big, and the fevers such as bearing, mechanical seal are serious, greatly
Relatively low pump service life.To solve the above problems, conventional way is：First, reduce the length of master and slave axis, reduce it
Flexibility, but this mode discharge pressure is small, and the self-priming and boosting capability of equipment are poor, and it is defeated can not to adapt to the larger material of viscosity
It send.2nd, the material of master and slave axis is improved, improves its intensity, but this mode researches and develops that the time is long, and fund input is larger.3rd, add
Lubricating system, lubricating system generally include a motor and a grease pump, by motor grease pump are driven to operate, so as to
The problem of lubricating oil is pumped into the joint parts such as bearing, machine envelope, generates heat, wear so as to inhibit the positions such as bearing, machine envelope.It is but this
Mode forgets to turn on grease pump often due to human negligence, causes the generation of the accidents such as excessively heated axle, machine envelope damage.It is meanwhile this
Mode, it is palliative, fail to tackle the problem at its root.
The content of the invention
The purpose of this utility model is to provide a kind of screw-rod structure of the Quimby pump of high stability.
For achieving the above object, technical solution is used by the utility model：A kind of screw rod knot of Quimby pump
Structure, including the driving shaft and driven shaft being arranged in pump case, one end of the driving shaft is power connector end, and the other end is provided with
By actively shaft-driven grease pump；Pipeline is further included, one end of the pipeline and the lubricating oil outlet of grease pump connect, separately
One end is opposite with the position that the screw-rod structure needs of Quimby pump lubricate；The both ends of the driving shaft and driven shaft pass through two groups of phases
Intermeshed gear, which is formed, to be sequentially connected.
Preferably, the leading portion of the driving shaft and driven shaft is respectively arranged with intermeshing first leading portion helical tooth and
The back segment of two leading portion helical tooths, driving shaft and driven shaft is respectively arranged with intermeshing first back segment helical tooth and the second back segment
Helical tooth；The hand of spiral of the first leading portion helical tooth and the first back segment helical tooth is opposite；The driving shaft and driven shaft
Support alignment bearing is arranged with outside middle part respectively, and passes through and alignment bearing is supported to be connected with pump case.
Preferably, the first leading portion helical tooth and the second leading portion helical tooth respectively with driving shaft and driven shaft one into
Type, the first back segment helical tooth and the second back segment helical tooth are made of respectively the swivel nut being set on driving shaft and driven shaft.
Preferably, it is attached between the driving shaft and grease pump by shaft coupling.
Preferably, the pump case includes main body, and the both ends of the main body set front end gland and rear end gland respectively；It is described
End bearing block before being set between front end gland and main body sets rear axle bearing between the rear end gland and main body.
Preferably, the middle part of the main body sets outlet, and both ends set suction inlet, the position of the outlet and support
The position of alignment bearing is opposite.
Preferably, the both ends of the driving shaft and driven shaft pass through end bearing and preceding end bearing block and rear end bearing respectively
Seat connection.
Preferably, the driving shaft and driven shaft set mechanical seal respectively positioned at main in vivo both ends.
Preferably, it is described that the position lubricated is needed to include end bearing, mechanical seal and support alignment bearing.
The beneficial effects of the utility model embody a concentrated reflection of, and influence caused by avoiding artificial incorrect operation is realized to spiral shell
Bar pumps the forced feed lubrication of joint part, greatly improves the stability of Quimby pump operation.Specifically, the utility model exists
During use, driving shaft is connected with power source, is driven by power source.During driving shaft rotates, master is utilized
Moving axis is directly driven grease pump, and lubricating oil is pumped directly to the position for needing to lubricate by grease pump, without independent
Install motor additional in lubricating system, it is energy saving apparent, greatly reduce cost.Simultaneously as the start and stop of grease pump with
The start and stop of driving shaft are synchronous, can effectively improve the reliability and security of grease pump work, avoid because personnel operate
The accidents such as excessively heated axle, mechanical seal damage caused by error, such as：Staff is not turned on and off grease pump, in screw pump
Just remember after work a period of time and open grease pump etc..
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of driving shaft and driven shaft；
Fig. 3 is a kind of structure diagram of preferred driving shaft；
Fig. 4 is the scheme of installation of angular gear.
Specific embodiment
The screw-rod structure of a kind of Quimby pump with reference to shown in Fig. 1-4, including the driving shaft 1 that is arranged in pump case and driven
Helical tooth is set so as to form screw rod, by being located at both ends between driving shaft 1 and driven shaft 2 on axis 2, driving shaft 1 and driven shaft 2
Connection gear group form be sequentially connected.Straight-tooth gear group, double helical tooth gear set etc. can be used in connection gear group.But it preferably does
Method, which is that the both ends of the driving shaft 1 and driven shaft 2 are made up of two groups of intermeshing angular gears 11, to be sequentially connected.So
The load of bearing of connection gear group can be not only increased, while solves big double helical tooth gear set difficulty of processing, the difficult tune in gap, master
From shaft clearance it is excessive the problem of.
One end of the driving shaft 1 is power connector end 3, and the other end is provided with the grease pump 4 driven by driving shaft 1.
For being connected with power source, the power source can be motor or petrol engine, bavin at the power connector end 3
Oil turbine etc..The utility model driving shaft 1 and the connection mode of grease pump 4 are more, for example, the drive shaft of grease pump 4 with
Driving shaft 1 can be welded directly or is sequentially connected in the form of gear set.It is but more preferable, simpler to do
Method is to be attached between the driving shaft 1 and grease pump 4 by shaft coupling 10.The grease pump 4 is typically mounted on pump
On shell, as shown in Figure 1, grease pump 4 is mounted on the pump case of left end.Certainly, the grease pump 4 can also be mounted on pump case
It is interior, but in view of the convenience of assembling, be usually still selectively mounted on pump case.The utility model further includes pipeline, the pipe
The one end on road is connected with the lubricating oil outlet of grease pump 4, and the screw-rod structure of the other end and Quimby pump needs the position lubricated
It is opposite, it is necessary to the position of lubrication for example：The joint parts such as the mechanical seal of bearing, screw pump of screw pump.
In use, driving shaft 1 is connected the utility model with power source, is driven by power source.Actively
During axis 1 rotates, directly grease pump 4 is driven using driving shaft 1, grease pump 4 directly pumps lubricating oil
The position lubricated to needs.Therefore, the utility model is energy saving apparent without individually installing motor additional in lubricating system, greatly
Reduce cost.Simultaneously as the start and stop of grease pump 4 are synchronous with the start and stop of driving shaft 1, lubrication can be effectively improved
The reliability and security that oil pump 4 works avoid the things such as the excessively heated axle caused by personnel's operation error, the damage of mechanical seal 18
Therefore such as：Staff is not turned on and off grease pump 4, just remembers opening lubricating oil after for a period of time in screw rod pump work
Pump 4 etc..
Single suction is single, single suction is double, double suction is single etc. can be used in the screw-rod structure of Quimby pump described in the utility model
Form, this is sentenced exemplified by the single form of double suction：As shown in fig. 1, that is, pump case sets suction inlet by the position of two close end,
Positioned at intermediate position, outlet is set.The structure of suction inlet and outlet is relatively simple, is not shown in figure.The utility model
It is front and rear using under normal use close to power connector end 3 one end before, after separate one end is, in figure namely the right side be before,
Zuo Weihou.Before the leading portion of the driving shaft 1 and driven shaft 2 is respectively arranged with intermeshing first leading portion helical tooth 5 and second
The back segment of section helical tooth 6, driving shaft 1 and driven shaft 2 is respectively arranged with intermeshing first back segment helical tooth 7 and the second back segment
Helical tooth 8.The hand of spiral of the first leading portion helical tooth 5 and the first back segment helical tooth 7 is opposite.So as to ensure material by left and right
The suction inlet at both ends enters, and is discharged via intermediate outlet.
It is conventional sucked using both ends, the Quimby pump of intermediate discharge structure, in order to ensure the effect of supercharging, driving shaft
1 and driven shaft 2 length it is generally also longer.The position that the stage casing of namely axis is opposite with outlet is higher-pressure region, this is resulted in
Driving shaft 1 and driven shaft 2 are subject to high pressure load in high-pressure area, and stress is larger, easily deforms so that Quimby pump
Vibrate abrasion that is larger, while exacerbating the positions such as bearing, mechanical seal, helical tooth.For this purpose, the utility model is in the active
Support alignment bearing 9 is arranged with outside the middle part of axis 1 and driven shaft 2 respectively, and passes through and alignment bearing 9 is supported to be connected with pump case.Branch
It is opposite with the outlet position pumped to support the position of alignment bearing 9, support alignment bearing 9 can be directly fixed by bolt and pump case.
It is of course also possible to it is supported on by connecting rod etc. on pump case.So, since support alignment bearing 9 can be to driving shaft 1 and driven
The middle part of axis 2 is effectively supported.Therefore, the rigid of driving shaft 1 and driven shaft 2 is not only improved indirectly, is increased
The screw rod of screw pump bears load higher-pressure region, reduces the risk of its deformation.It can also avoid because of outlet high-pressure shunting
Principal and subordinate's axis caused by not uniform high pressure load is excessively high is flexible to be swung, avoid driving shaft 1 and driven shaft 2 due to radial load is excessive and with
The problem of inner wall of conveyor chamber collides, friction.Meanwhile support alignment bearing 9 that can also carry out axis to driving shaft 1 and driven shaft 2
To /V, solve the problems, such as that the connection gear group axial force positioned at 2 both ends of driving shaft 1 and driven shaft is unbalanced.
In order to further improve the performance of the utility model, better way is also possible that with reference to shown in Fig. 2 and 3, described
First leading portion helical tooth 5 is integrally formed with the second leading portion helical tooth 6 with driving shaft 1 and driven shaft 2 respectively, the first back segment spiral shell
Rotation 7 and second back segment helical tooth 8 of tooth is made of respectively the swivel nut being set on driving shaft 1 and driven shaft 2.That is, first
5 and second leading portion helical tooth 6 of leading portion helical tooth is directly to be processed in processing workshop in a manner of vehicle, milling etc. on axis again, and the
One back segment helical tooth 7 and the second back segment helical tooth 8 are first to process swivel nut, and then swivel nut is set on axis and is formed, swivel nut with
Axis uses split-type design.The fixed form of the utility model swivel nut and axis is more, such as：External splines, swivel nut are set on axis
Endoporus set with the matched internal spline of external splines, after swivel nut is threaded through on axis, end is held out against using holding out against ring, hold out against ring with
Axis is affixed.The circumferential /V of swivel nut and axis is made up of inside and outside spline, and axial limiting holds out against composition by holding out against ring.Certainly,
Bolt may be employed directly to fix swivel nut and axis, this mode is the simplest, but the stress of bolt is larger.
After the utility model uses this knockdown screw rod, that is, leading portion helical tooth and back segment helical tooth one are one
Body formula, one is after knockdown structure.It is positioned using the first leading portion helical tooth 5 and the second leading portion helical tooth 6, effectively
Improve installation accuracy.Simultaneously as the first back segment helical tooth 7 and the second back segment helical tooth 8 are pacified by the way of swivel nut
Dress has certain adjusting nargin, therefore again quite convenient for the adjustment after the installation of each component.In addition, this mode can be effective
The integral rigidity intensity for improving driving shaft 1 and driven shaft 2, facilitate assembling, dismounting, repair and the replacement of each component.
As shown in Figure 1, pump case described in the utility model includes main body 12, the both ends of the main body 12 set preceding side pressure respectively
Lid 13 and rear end gland 14.Conveyor chamber of 12 inside of main body as screw pump, for the single screw pump of double suction, that is,
Say that the middle part of the main body 12 sets outlet, both ends set suction inlet, position and the support alignment bearing 9 of the outlet
Position is opposite.End bearing block 15 before being set between the front end gland 13 and main body 12, the rear end gland 14 and main body 12 it
Between rear axle bearing 16 is set.The both ends of the driving shaft 1 and driven shaft 2 pass through end bearing 17 and preceding end bearing block 15 respectively
It is connected with rear axle bearing 16.The both ends that the driving shaft 1 and driven shaft 2 are located in main body 12 set mechanical seal 18 respectively.
It is described in the utility model that the position lubricated is needed to include one in end bearing 17, mechanical seal 18 and support alignment bearing 9
It is or multiple.
Claims (9)
1. a kind of screw-rod structure of Quimby pump, including the driving shaft (1) being arranged in pump case and driven shaft (2), feature exists
In：One end of the driving shaft (1) is power connector end (3), and the other end is provided with the grease pump driven by driving shaft (1)
(4)；Pipeline is further included, one end of the pipeline is connected with the lubricating oil outlet of grease pump (4), the other end and Quimby pump
The position that screw-rod structure needs lubricate is opposite；The both ends of the driving shaft (1) and driven shaft (2) pass through two groups of intermeshing teeth
It takes turns (11) and forms drive connection.
2. the screw-rod structure of Quimby pump according to claim 1, it is characterised in that：The driving shaft (1) and driven shaft
(2) leading portion is respectively arranged with intermeshing first leading portion helical tooth (5) and the second leading portion helical tooth (6), driving shaft (1) and
The back segment of driven shaft (2) is respectively arranged with intermeshing first back segment helical tooth (7) and the second back segment helical tooth (8)；It is described
The hand of spiral of first leading portion helical tooth (5) and the first back segment helical tooth (7) is opposite；The driving shaft (1) and driven shaft (2)
Support alignment bearing (9) is arranged with outside middle part respectively, and passes through and alignment bearing (9) is supported to be connected with pump case.
3. the screw-rod structure of Quimby pump according to claim 2, it is characterised in that：The first leading portion helical tooth (5)
Be integrally formed respectively with driving shaft (1) and driven shaft (2) with the second leading portion helical tooth (6), the first back segment helical tooth (7) and
Second back segment helical tooth (8) is made of respectively the swivel nut being set on driving shaft (1) and driven shaft (2).
4. the screw-rod structure of Quimby pump according to claim 3, it is characterised in that：The driving shaft (1) and lubricating oil
It is attached between pump (4) by shaft coupling (10).
5. the screw-rod structure of Quimby pump according to claim 4, it is characterised in that：The pump case includes main body (12),
The both ends of the main body (12) set front end gland (13) and rear end gland (14) respectively；The front end gland (13) and main body
(12) end bearing block (15) before being set between sets rear axle bearing (16) between the rear end gland (14) and main body (12).
6. the screw-rod structure of Quimby pump according to claim 5, it is characterised in that：The middle part of the main body (12) is set
Outlet, both ends set suction inlet, and the position of the outlet is opposite with the position of support alignment bearing (9).
7. the screw-rod structure of Quimby pump according to claim 6, it is characterised in that：The driving shaft (1) and driven shaft
(2) both ends are connected respectively by end bearing (17) with preceding end bearing block (15) and rear axle bearing (16).
8. the screw-rod structure of Quimby pump according to claim 7, it is characterised in that：The driving shaft (1) and driven shaft
(2) both ends being located in main body (12) set mechanical seal (18) respectively.
9. the screw-rod structure of Quimby pump according to claim 8, it is characterised in that：The position for needing to lubricate includes
One or more of end bearing (17), mechanical seal (18) and support alignment bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720999387.5U CN207420853U (en) | 2017-08-10 | 2017-08-10 | A kind of screw-rod structure of Quimby pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720999387.5U CN207420853U (en) | 2017-08-10 | 2017-08-10 | A kind of screw-rod structure of Quimby pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207420853U true CN207420853U (en) | 2018-05-29 |
Family
ID=62314764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720999387.5U Expired - Fee Related CN207420853U (en) | 2017-08-10 | 2017-08-10 | A kind of screw-rod structure of Quimby pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207420853U (en) |
-
2017
- 2017-08-10 CN CN201720999387.5U patent/CN207420853U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180529 Termination date: 20190810 |