CN202789476U - Direct-connection double-acting stroke adjusting device for reciprocating metering pump - Google Patents
Direct-connection double-acting stroke adjusting device for reciprocating metering pump Download PDFInfo
- Publication number
- CN202789476U CN202789476U CN 201220351860 CN201220351860U CN202789476U CN 202789476 U CN202789476 U CN 202789476U CN 201220351860 CN201220351860 CN 201220351860 CN 201220351860 U CN201220351860 U CN 201220351860U CN 202789476 U CN202789476 U CN 202789476U
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- CN
- China
- Prior art keywords
- adjusting device
- accent amount
- stroke adjusting
- bearing
- axle sleeve
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- Expired - Fee Related
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- Reciprocating Pumps (AREA)
- Transmission Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a stroke adjusting device for a reciprocating metering pump, and provides a direct-connection double-acting stroke adjusting device for a reciprocating metering pump. The direct-connection double-acting stroke adjusting device comprises two sets of connecting rods and two sets of adjusting and measuring structures; each adjusting and measuring structure comprises a worm, a worm gear, a bearing positioning sleeve, a deep groove bearing and the like; each worm is connected with a rotating shaft of a motor, and each worm gear meshed with the corresponding worm is sleeved on a shaft sleeve; the shaft sleeve is fixed into the bearing positioning sleeves via the deep groove bearings and is connected with eccentric bushing wheels by key grooves on end surfaces of the shaft sleeve; X shafts are coaxially arranged in the shaft sleeve and the eccentric bushing wheels in a non-connected manner, and one end of each X shaft is fixedly connected with an adjusting and measuring lead screw; each X shaft is provided with a through oblique groove which is not parallel to the axis of the X shaft, and a radial dowel is penetratingly arranged in each oblique groove and is connected with the corresponding eccentric bushing wheel; and the eccentric bushing wheels are connected with the connecting rods by needle bearings. The direct-connection double-acting stroke adjusting device is simple in process, high in bearing capacity, adjustment and measurement precision and rigidity and compact in structure, cost and energy consumption are saved, and two sets of stroke adjustment can be realized by the single shaft sleeve.
Description
Technical field
The utility model relates to Reciprocating Metering Pump, particularly a kind of stroke adjusting device for Reciprocating Metering Pump.
Background technique
But the flow step-less adjustment is one of key property of Reciprocating Metering Pump, and the Flow-rate adjustment of metering pump generally has dual mode, the one, and the pump speed of change metering pump, the 2nd, the plunger stroke of change metering pump changes the plunger stroke mode of structure and uses more extensive.
In changing the plunger stroke structure, form commonly used is N axle, eccentric wheel and connecting rod assembly structure, and the main weakness of this structure is: processing technology is complicated, stiffness of structural member, and the intensity inequality, bearing capacity is less.
The model utility content
Main purpose of the present utility model is to overcome deficiency of the prior art, provides that a kind of technique is simple, bearing capacity is large, transfer accuracy of measurement height, compact structure, the stroke adjusting device for Reciprocating Metering Pump that rigidity is large.
For solving the problems of the technologies described above, solution of the present utility model is:
A kind of stroke adjusting device for Reciprocating Metering Pump is provided, comprises that described connecting rod has two for the connecting rod that connects the reciprocating metering pump plunger, each connects the plunger of a Reciprocating Metering Pump; This device correspondingly has the identical accent amount structure of two nested structures, and every cover accent amount structure includes bearing setting sleeve, zanjon bearing, eccentric wheel, needle bearing, X-axis and accent amount screw mandrel; The rotatingshaft of motor is connected to worm screw, be connected on the middle part of axle sleeve with the worm gear set of worm meshing, two cover accent amount structures then are divided into both sides centered by worm gear: axle sleeve is fixed among the bearing setting sleeve by the zanjon bearing of both sides, and the keyway of axle sleeve by the end joins with the slip of eccentric bushing wheel; Described X-axis is joined with axle sleeve and eccentric wheel with being located in axle sleeve and the eccentric wheel and not, and the one end is fixedly connected with by the zanjon bearing with accent amount screw mandrel; X-axis has a skewed slot with the nonparallel perforation of its axis, and a pivot pin radially is arranged in this skewed slot and with eccentric wheel and joins; Eccentric wheel is connected to described connecting rod by needle bearing.
As further improvement, described two cover accent amount structures are centered by worm gear and are symmetrical arranged.
As further improvement, the skewed slot in the described two cover accent amount structures on the X-axis has identical true dip direction.
As further improvement, described accent amount structure also comprises upper saddle, accent amount seat and accent amount handle, and upper saddle is connected to eccentric wheel by thrust ball bearing, and accent amount seat is screwed on upper saddle; Accent amount taper knob is located at the upper saddle end, and described accent amount screw mandrel and accent amount handle inside join.
As further improvement, described plunger is connected with connecting rod by crosshead.
As further improvement, described axle sleeve inside is step-like, and its middle part radially is provided with at least 2 through holes.
As further improvement, the end face of described axle sleeve is provided with endless oil groove.
Compared with prior art, the beneficial effects of the utility model are:
1, processing technology is simple, and bearing capacity is large, saves cost, reduces energy consumption;
2, transfer accuracy of measurement high;
3, an axle sleeve satisfies two cover stroke adjustment simultaneously, compact structure, and rigidity is large.
Description of drawings
Fig. 1 is the utility model direct connection double-action controlling device structural drawing.
Fig. 2 is the N axle force analysis figure of the stroke regulating structure of N axle form.
Fig. 3 is the X-axis force analysis figure of the utility model direct connection double-action controlling device.
Reference character among the figure is: 1 axle sleeve; 2 worm screws; 3 connecting rods; 4 pivot pins; 5 upper saddles; 6 accent amount seats; 7 accent amount screw mandrels; 8 bearing setting sleeves; 9 zanjon bearings; 10 turbines; The 11X axle; 12 eccentric wheels; 13 thrust ball bearings; 14 accent amount handles; 15 needle bearings; 16 crossheads; 17 plungers.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Stroke adjusting device among Fig. 1 is a direct connection double-action stroke adjusting device, comprises for the connecting rod 3 that connects the reciprocating metering pump plunger and two cover accent amount structures.Described accent amount structure comprises: worm screw 2, worm gear 10, bearing setting sleeve 8, zanjon bearing 9, axle sleeve 1, eccentric wheel 12, needle bearing 15, X-axis 11 and accent amount screw mandrel 7.Described worm screw 2 links to each other with the rotatingshaft of motor, and the worm gear 10 that meshes with worm screw 2 is socketed on the axle sleeve 1; Axle sleeve 1 is fixed among the bearing setting sleeve 8 by zanjon bearing 9, and keyway and the eccentric wheel 12 of axle sleeve 1 by its end face slide and join, and described keyway is arranged in parallel in both ends of the surface, guarantees that the to-and-fro motion of plunger 17 is mutually the phase places of 180 degree.Described X-axis 11 is joined with axle sleeve 1 and eccentric wheel 12 with being located in axle sleeve 1 and the eccentric wheel 12 and not, and one end and accent amount screw mandrel 7 are fixedly connected with by zanjon bearing 9; X-axis 11 has a skewed slot with the nonparallel perforation of its axis, and a pivot pin 4 radially is arranged in this skewed slot and with eccentric wheel 12 and joins; Eccentric wheel 12 is connected to described connecting rod 3 by needle bearing 15.
Described two cover accent amount structure structures are identical, are to be symmetrical arranged centered by worm gear 10, can carry out Flow-rate adjustment to two cover metering pump fluid ends simultaneously.
Described accent amount structure also comprises upper saddle 5, accent amount seat 6 and accent amount handle 14, and upper saddle 5 is connected to eccentric wheel 12 by thrust ball bearing 13, and accent amount seat 6 is screwed on upper saddle 5; Accent amount handle 14 is sheathed on upper saddle 5 ends, described accent amount screw mandrel 7 joins with accent amount handle 14 inside, accent amount handle 14 turns clockwise, plunger 17 strokes strengthen, corresponding metering pump flow increases, and when being rotated counterclockwise, plunger 17 strokes reduce, corresponding metering pump flow reduces, and described plunger 17 is connected with connecting rod 3 by crosshead 16.
Described axle sleeve 1 inside is step-like, and its middle part radially is provided with at least 2 through holes, but this through hole balance pressure when adjust flux reduces to regulate resistance.
The end face of described axle sleeve 1 is provided with endless oil groove, and moving element is worked under the bath lubrication condition, and it is little to wear and tear, and transmission efficiency is high, and is reliable.
Fig. 2 is the N axle force analysis figure of the stroke regulating structure of N axle form, Fig. 3 is the X-axis force analysis figure of the utility model direct connection double-action controlling device, P represents active force among the figure, F1, F2 represent support force, the arm of force of N axle form is long, and poor rigidity, the X-axis that the utility model direct connection double-action stroke adjusting device adopts the then arm of force are short, rigidity is strong, demonstrates the superiority on rigidity.
During use, take right-hand member accent amount structure as example: motor is done the primary speed-down motion by worm screw 2, worm gear 10, and worm gear 10 drives axle sleeve 1 and rotates, and axle sleeve 1 drives eccentric wheel 12 by the both ends of the surface keyway and rotates.After X-axis 11 is passed eccentric wheel 12, the bearing pin 4 of packing into, when bearing pin 4 during in the A position, eccentric wheel 12 is in the concentric circle state with axle sleeve 1, plunger 17 strokes are zero, drive X-axis 11 and move right when accent amount screw mandrel 7 past right motion, and the skewed slot on the X-axis 11 promotes pivot pin 4, eccentric wheel 12 is moved down, produce side-play amount e.Eccentric wheel 12 drivening rods 3, plunger 17 are reciprocating, and the path increment of plunger 17 is 2e.The other end of accent amount screw mandrel 7 and accent amount handle 14 are fixing, and accent amount handle 14 turns clockwise, and plunger 17 strokes strengthen, and corresponding metering pump flow increases, and when being rotated counterclockwise, plunger 17 strokes reduce, and corresponding metering pump flow reduces.
Certainly, this direct connection double-action stroke adjusting device is not limited in above-mentioned using method, more than is a specific embodiment.Other conversion usage mode of direct connection double-action stroke adjusting device all drop within the protection domain of the present utility model.
Claims (7)
1. a direct connection double-action stroke adjusting device that is used for Reciprocating Metering Pump comprises for the connecting rod that connects the reciprocating metering pump plunger, and it is characterized in that described connecting rod has two, each connects the plunger of a Reciprocating Metering Pump; This device correspondingly has the identical accent amount structure of two nested structures, and every cover accent amount structure includes bearing setting sleeve, zanjon bearing, eccentric wheel, needle bearing, X-axis and accent amount screw mandrel; The rotatingshaft of motor is connected to worm screw, be connected on the middle part of axle sleeve with the worm gear set of worm meshing, two cover accent amount structures then are divided into both sides centered by worm gear: axle sleeve is fixed among the bearing setting sleeve by the zanjon bearing of both sides, and the keyway of axle sleeve by the end joins with the slip of eccentric bushing wheel; Described X-axis is joined with axle sleeve and eccentric wheel with being located in axle sleeve and the eccentric wheel and not, and the one end is fixedly connected with by the zanjon bearing with accent amount screw mandrel; X-axis has a skewed slot with the nonparallel perforation of its axis, and a pivot pin radially is arranged in this skewed slot and with eccentric wheel and joins; Eccentric wheel is connected to described connecting rod by needle bearing.
2. stroke adjusting device according to claim 1 is characterized in that, described two cover accent amount structures are centered by worm gear and are symmetrical arranged.
3. stroke adjusting device according to claim 1 is characterized in that, the skewed slot in the described two cover accent amount structures on the X-axis has identical true dip direction.
4. according to claim 1 to the stroke adjusting device described in 3 any one, it is characterized in that, described accent amount structure also comprises upper saddle, accent amount seat and accent amount handle, and upper saddle is connected to eccentric wheel by thrust ball bearing, and accent amount seat is screwed on upper saddle; Accent amount taper knob is located at the upper saddle end, and described accent amount screw mandrel and accent amount handle inside join.
5. according to claim 1 to the stroke adjusting device described in 3 any one, it is characterized in that described plunger is connected with connecting rod by crosshead.
6. according to claim 1 to the stroke adjusting device described in 3 any one, it is characterized in that described axle sleeve inside is step-like, its middle part radially is provided with at least 2 through holes.
7. according to claim 1 to the stroke adjusting device described in 3 any one, it is characterized in that the end face of described axle sleeve is provided with endless oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351860 CN202789476U (en) | 2012-04-08 | 2012-07-19 | Direct-connection double-acting stroke adjusting device for reciprocating metering pump |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210100408 | 2012-04-08 | ||
| CN201210100408.7 | 2012-04-08 | ||
| CN 201220351860 CN202789476U (en) | 2012-04-08 | 2012-07-19 | Direct-connection double-acting stroke adjusting device for reciprocating metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789476U true CN202789476U (en) | 2013-03-13 |
Family
ID=47053363
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220351860 Expired - Fee Related CN202789476U (en) | 2012-04-08 | 2012-07-19 | Direct-connection double-acting stroke adjusting device for reciprocating metering pump |
| CN201210251202.4A Active CN102758769B (en) | 2012-04-08 | 2012-07-19 | For the direct connection double-action stroke adjusting device of Reciprocating Metering Pump |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210251202.4A Active CN102758769B (en) | 2012-04-08 | 2012-07-19 | For the direct connection double-action stroke adjusting device of Reciprocating Metering Pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202789476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758769A (en) * | 2012-04-08 | 2012-10-31 | 杭州大潮石化设备有限公司 | Direct-coupled double-acting stroke adjusting device used in reciprocating metering pump |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591007B (en) * | 2013-11-11 | 2016-08-17 | 中国核电工程有限公司 | A kind of Metering Pump Stroke stepless regulator |
| CN103696925B (en) * | 2013-12-26 | 2015-12-09 | 中铁岩锋成都科技有限公司 | For realizing synchronous rotary and flexible driving mechanism |
| CN104948429A (en) * | 2015-06-10 | 2015-09-30 | 安庆联控机电科技发展有限公司 | Improved honing liquid pump |
| CN104948431A (en) * | 2015-06-10 | 2015-09-30 | 安庆联控机电科技发展有限公司 | Honing solution pump with eccentric shaft sleeve |
| CN106014961B (en) * | 2016-07-13 | 2018-09-04 | 禾通科技公司 | Plunger type building water supply pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11294131A (en) * | 1998-04-03 | 1999-10-26 | Mikuni Adec Corp | Fuel pump for engine |
| CN201531385U (en) * | 2009-09-17 | 2010-07-21 | 德帕姆(杭州)泵业科技有限公司 | Measuring pump for sleeve type regulating mechanism |
| CN201827040U (en) * | 2010-06-12 | 2011-05-11 | 德帕姆(杭州)泵业科技有限公司 | Parallel double-cylinder metering pump |
| CN201934272U (en) * | 2010-12-24 | 2011-08-17 | 广西壮族自治区水力机械研究所 | Intelligentized continuous-feeding V-axis two-stage pump set |
| CN202789476U (en) * | 2012-04-08 | 2013-03-13 | 杭州大潮石化设备有限公司 | Direct-connection double-acting stroke adjusting device for reciprocating metering pump |
-
2012
- 2012-07-19 CN CN 201220351860 patent/CN202789476U/en not_active Expired - Fee Related
- 2012-07-19 CN CN201210251202.4A patent/CN102758769B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758769A (en) * | 2012-04-08 | 2012-10-31 | 杭州大潮石化设备有限公司 | Direct-coupled double-acting stroke adjusting device used in reciprocating metering pump |
| CN102758769B (en) * | 2012-04-08 | 2015-08-26 | 杭州大潮石化设备有限公司 | For the direct connection double-action stroke adjusting device of Reciprocating Metering Pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102758769A (en) | 2012-10-31 |
| CN102758769B (en) | 2015-08-26 |
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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: 20130313 Termination date: 20160719 |