CN209637987U - New structure compact gear pump - Google Patents
New structure compact gear pump Download PDFInfo
- Publication number
- CN209637987U CN209637987U CN201920202474.2U CN201920202474U CN209637987U CN 209637987 U CN209637987 U CN 209637987U CN 201920202474 U CN201920202474 U CN 201920202474U CN 209637987 U CN209637987 U CN 209637987U
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- CN
- China
- Prior art keywords
- guide groove
- gear
- pump case
- outlet pipe
- pump
- 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
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model belongs to gear pump field, especially new structure compact gear pumps, for the existing uncontrollable problem of gear pump discharge, now propose following scheme, it includes pump case, arc groove is equipped in pump case, driving gear and driven gear are rotatably connected in arc groove, the two sides of pump case are respectively equipped with water inlet pipe and outlet pipe, outlet pipe is equipped with flow control valve, guide groove is equipped in pump case, return pipe is equipped between guide groove and water inlet pipe, sliding block is equipped in guide groove, spring and adjusting block, guide groove is embedded with thread bush far from the side wall of outlet pipe, thread bush internal screw thread is connected with screw rod, one end that screw rod is located at outside pump case is welded with handle.The utility model is convenient for the output flow of adjusting tooth wheel pump, and easy to adjust, the return pipe of arc groove two sides is arranged in compact-sized, small volume, avoid pump case two sides discontinuity and caused by pump case deform, effectively raise the service life of gear pump.
Description
Technical field
The utility model relates to gear pump technical fields more particularly to new structure compact gear to pump.
Background technique
Gear pump is that swept volume converts and movement is to convey liquid or make by being formed by between pumping cylinder and meshing gear
Pressurization drum pump, when gear rotation, the volume in the space for the side that is out of gear becomes larger from small, forms vacuum, and liquid is inhaled
Enter, the volume in the space of gear engagement side is from becoming smaller greatly, so that liquid be squeezed into pipeline, the outlet pressure of gear pump is complete
All dependent on the drag size at pump discharge, under conditions of motor speed is certain, existing gear pump discharge is unadjustable, but
It is the adjusting for needing to carry out flow in most cases, is unable to satisfy the fluid conveying requirement of changeable flow.
Utility model content
The utility model proposes new structure compact gear pump, solve the problems, such as that gear pump discharge is uncontrollable.
To achieve the goals above, the utility model adopts the technical scheme that
New structure compact gear pumps, including pump case, the arc groove being provided symmetrically in the pump case, the arc
Driving gear and driven gear are rotatably connected in slot, the driving gear is engaged with driven gear, the two sides point of the pump case
Not She You water inlet pipe and outlet pipe, the outlet pipe is equipped with flow control valve, and the water inlet pipe and outlet pipe and arc groove connect
It is logical, it is equipped with the guide groove positioned at outlet pipe two sides in the pump case, return pipe is equipped between the guide groove and water inlet pipe, it is described
Sliding block is slidably connected in guide groove, the sliding block is connected with spring far from the side of outlet pipe, and the other end of spring is connected with
Adjusting block, the guide groove are embedded with thread bush far from the side wall of outlet pipe, and the thread bush internal screw thread is connected with screw rod, described
One end that screw rod is located at outside pump case is welded with handle, and screw rod is located at one end and adjusting block rotation connection inside guide groove, institute
The side inner wall that guide groove is stated close to outlet pipe is welded with baffle ring.
Preferably, the inner wall of the teeth and arc groove of the driving gear and driven gear fits closely.
Preferably, the adjusting block screwing is fixed with bearing, and screw rod is rotatably connected in bearing, the lateral wall of adjusting block
It is bonded with the inner wall of guide groove, the guide groove is perpendicular to outlet pipe.
Preferably, the flow control valve is located at the outside of pump case.
Preferably, the lateral wall of the sliding block is bonded with the inner wall of guide groove, the both ends of the return pipe respectively with water inlet
Pipe is connected to guide groove.
In the utility model, by the output flow of flow control valve adjusting tooth wheel pump, pass through return pipe adjusting tooth wheel pump
The pressure difference of input terminal and output end, achievees the purpose that adjustment gear pump output flow, and the setting of baffle ring plays limit to sliding block
Effect, avoid sliding block from entering in outlet pipe, meanwhile, by the setting of screw rod, handle, thread bush, adjusting block, be conveniently adjusted bullet
The compressive state of spring, so as to adjust the pressure threshold of liquid reflux.
The utility model is convenient for the output flow of adjusting tooth wheel pump, easy to adjust, compact-sized, small volume, and setting exists
The return pipe of arc groove two sides, avoid pump case two sides discontinuity and caused by pump case deform, effectively raise gear
The service life of pump.
Detailed description of the invention
Fig. 1 be the utility model proposes new structure compact gear pump structural schematic diagram.
Fig. 2 be the utility model proposes new structure compact gear pump Fig. 1 in part A structure enlargement diagram.
Figure label: 1 pump case, 2 return pipes, 3 water inlet pipes, 4 arc grooves, 5 driving gears, 6 outlet pipes, 7 flow control valves,
8 guide grooves, 9 springs, 10 sliding blocks, 11 baffle rings, 12 thread bush, 13 handles, 14 screw rods, 15 adjusting blocks, 16 bearings, 17 driven tooths
Wheel.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, new structure compact gear pumps, including pump case 1, the arc groove being provided symmetrically in pump case 1
4, driving gear 5 and driven gear 17 are rotatably connected in arc groove 4, and driving gear 5 is engaged with driven gear 17, pump case 1
Two sides are respectively equipped with water inlet pipe 3 and outlet pipe 6, and outlet pipe 6 is equipped with flow control valve 7, water inlet pipe 3 and outlet pipe 6 and arc
Slot 4 is connected to, and the guide groove 8 positioned at 6 two sides of outlet pipe is equipped in pump case 1, return pipe 2 is equipped between guide groove 8 and water inlet pipe 3,
Sliding block 10 is slidably connected in guide groove 8, sliding block 10 is connected with spring 9 far from the side of outlet pipe 6, and the other end of spring 9 connects
It is connected to adjusting block 15, guide groove 8 is embedded with thread bush 12 far from the side wall of outlet pipe 6, and 12 internal screw thread of thread bush is connected with screw rod
14, one end that screw rod 14 is located at outside pump case 1 is welded with handle 13, and screw rod 14 is located at one end and adjusting block inside guide groove 8
15 rotation connections, guide groove 8 are welded with baffle ring 11 close to the side inner wall of outlet pipe 6；The teeth of driving gear 5 and driven gear
It is fitted closely with the inner wall of arc groove 4；15 screwing of adjusting block is fixed with bearing 16, and screw rod 14 is rotatably connected in bearing 16,
The lateral wall of adjusting block 15 is bonded with the inner wall of guide groove 8, and guide groove 8 is perpendicular to outlet pipe 6；Flow control valve 7 is located at pump case 1
Outside；The lateral wall of sliding block 10 is bonded with the inner wall of guide groove 8, the both ends of return pipe 2 respectively with water inlet pipe 3 and guide groove 8
Connection.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Person implicitly includes one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than a, unless otherwise specifically defined.
Working principle: when gear pump startup, driving gear 5 drive driven gear 17 rotate so that liquid from water inlet pipe 3 into
Enter to outlet pipe 6, under normal circumstances, sliding block 10 is contacted with baffle ring 11, and baffle ring 11 limits to be moved in 10 casees outlet pipes of sliding block 6,
At this point, sliding block 10 blocks the junction of guide groove 8 Yu return pipe 2, liquid reflux is prevented, when the liquid outlet quantity for needing adjusting tooth wheel pump
When, flow control valve 7 is adjusted, different output flows makes output end generate different pressure, and output flow is smaller, output end
Pressure it is bigger, output end fluid compression sliding block 10, so that spring 9 is compressed, sliding block 10 removes return pipe 2 and guide groove 8 connects
Place is met, the liquid in outlet pipe flows into water inlet pipe 3 by return pipe 2, and the pressure difference between outlet pipe 6 and water inlet pipe 3 is bigger, returns
The flow of flow tube 2 is also bigger, by the distance between adjusting slider 10 and adjusting block 15, the i.e. compression degree of spring 9, to reach
New pressure balance, by rotational handle 13, handle 13 drives screw rod 14 to rotate, so that screw rod 14 is located in guide groove 8
Length, screw rod 14 drive adjusting block 15 moved in guide groove 8, achieve the purpose that adjust 9 compressive state of spring, in positive reason
Under condition, the decrement of spring 9 is in maximum value, and to guarantee gear pump when operating normally, liquid will not flow back, and only need
When adjusting output flow, the decrement of adjustment spring 9 appropriate, so that liquid reflux.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. new structure compact gear pumps, including pump case (1), which is characterized in that be provided symmetrically in the pump case (1)
Arc groove (4), the arc groove (4) is interior to be rotatably connected to driving gear (5) and driven gear (17), the driving gear (5)
It is engaged with driven gear (17), the two sides of the pump case (1) are respectively equipped with water inlet pipe (3) and outlet pipe (6), the outlet pipe
(6) flow control valve (7) are equipped with, the water inlet pipe (3) and outlet pipe (6) are connected to arc groove (4), in the pump case (1)
Equipped with the guide groove (8) for being located at outlet pipe (6) two sides, return pipe (2) are equipped between the guide groove (8) and water inlet pipe (3), institute
It states and is slidably connected sliding block (10) in guide groove (8), the sliding block (10) is connected with spring (9) far from the side of outlet pipe (6),
The other end of spring (9) is connected with adjusting block (15), and the guide groove (8) is embedded with thread bush far from the side wall of outlet pipe (6)
(12), thread bush (12) internal screw thread is connected with screw rod (14), and the screw rod (14) is located at the external one end welding of pump case (1)
Have handle (13), screw rod (14) is located at the internal one end of guide groove (8) and adjusting block (15) are rotatablely connected, the guide groove (8)
Side inner wall close to outlet pipe (6) is welded with baffle ring (11).
2. new structure compact gear according to claim 1 pump, which is characterized in that the driving gear (5) and from
The teeth of moving gear and the inner wall of arc groove (4) fit closely.
3. new structure compact gear pump according to claim 1, which is characterized in that adjusting block (15) screwing
It is fixed with bearing (16), screw rod (14) is rotatably connected in bearing (16), and the lateral wall of adjusting block (15) is interior with guide groove (8)
Wall fitting, the guide groove (8) is perpendicular to outlet pipe (6).
4. new structure compact gear pump according to claim 1, which is characterized in that flow control valve (7) position
In the outside of pump case (1).
5. new structure compact gear pump according to claim 1, which is characterized in that the lateral wall of the sliding block (10)
It is bonded with the inner wall of guide groove (8), the both ends of the return pipe (2) are connected to water inlet pipe (3) and guide groove (8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920202474.2U CN209637987U (en) | 2019-02-15 | 2019-02-15 | New structure compact gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920202474.2U CN209637987U (en) | 2019-02-15 | 2019-02-15 | New structure compact gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209637987U true CN209637987U (en) | 2019-11-15 |
Family
ID=68493504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920202474.2U Expired - Fee Related CN209637987U (en) | 2019-02-15 | 2019-02-15 | New structure compact gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209637987U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250954A (en) * | 2021-05-17 | 2021-08-13 | 南京航空航天大学 | Micro-flow supply method of electric gear pump based on electromagnetic valve time domain opening control |
| CN114922814A (en) * | 2022-05-17 | 2022-08-19 | 南通油顺液压机械有限公司 | Fluid discharge capacity adjusting structure of hydraulic internal kneading gear pump and adjusting method thereof |
-
2019
- 2019-02-15 CN CN201920202474.2U patent/CN209637987U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250954A (en) * | 2021-05-17 | 2021-08-13 | 南京航空航天大学 | Micro-flow supply method of electric gear pump based on electromagnetic valve time domain opening control |
| CN114922814A (en) * | 2022-05-17 | 2022-08-19 | 南通油顺液压机械有限公司 | Fluid discharge capacity adjusting structure of hydraulic internal kneading gear pump and adjusting method thereof |
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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: 20191115 Termination date: 20210215 |