CN107559189A - The locking gear structure and gear pump of a kind of gear pump - Google Patents
The locking gear structure and gear pump of a kind of gear pump Download PDFInfo
- Publication number
- CN107559189A CN107559189A CN201710694658.0A CN201710694658A CN107559189A CN 107559189 A CN107559189 A CN 107559189A CN 201710694658 A CN201710694658 A CN 201710694658A CN 107559189 A CN107559189 A CN 107559189A
- Authority
- CN
- China
- Prior art keywords
- gear
- release member
- pump
- internal thread
- thread hole
- 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.)
- Withdrawn
Links
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a kind of locking gear structure of gear pump, including gear (1), axial internal thread hole (11) is set in gear (1), also including being formed by steel wire wound and being in the gear anti-release member (2) of shape of threads, gear anti-release member (2) is spun in internal thread hole (11) with certain pre-tensioning.In the present invention, pump shaft is arranged in internal thread hole by gear anti-release member, equivalent to one compression spring washer of setting between each pitch being connected in the gear anti-release member of shape of threads with pump shaft screw thread, so as to by gear and the firm locking of pump shaft, so, in the pump shaft reversion of gear pump, the loosening between pump shaft and gear can be avoided, prevent gear from being come off from pump shaft, improve the stability and reliability of gear pump work.
Description
Technical field
The present invention relates to the locking gear structure of gear pump technical field, more particularly to a kind of gear pump, and application should
The gear pump of locking gear structure.
Background technology
Gear pump, it is caused during intermeshing by two or more gears being sealed in the pump housing
Working space volume changes to convey liquid medium.The pump shaft of gear pump is connected through a screw thread to enter action edge transmission with gear,
Specifically, setting axial internal thread hole on gear, external screw thread is set on pump shaft, pump shaft screwed in the internal thread hole of gear
To complete both assemblings.
For gear pump when running well, pump shaft remains stable power transmission with gear；But when the pump of gear pump
When axle inverts, the loosening being threadedly coupled between pump shaft and gear, or even gear can be caused to be come off from pump shaft, so as to influence
The normal operation of gear pump, potential potential safety hazard be present.
The content of the invention
The problem of existing for prior art, the present invention propose a kind of locking gear structure of gear pump, can prevented
Loosening between gear and pump shaft.The invention also provides a kind of gear pump of application locking gear structure.
To use following technical scheme up to this purpose, the present invention：
The present invention proposes a kind of locking gear structure of gear pump, including gear, and axial direction is set in gear
Internal thread hole, in addition to formed by steel wire wound and be in the gear anti-release member of shape of threads, gear anti-release member is with certain pre-tensioner
Power is spun in internal thread hole.
Preferably, in a free state, the external diameter of gear anti-release member is more than the internal diameter of internal thread hole, to install into
Gear anti-release member forms certain pre-tensioning and is spun in internal thread hole during screwed hole.
Preferably, the axial length of gear anti-release member is less than or equal to the axial length of internal thread hole.
Preferably, the gear anti-release member is formed by stainless steel steel wire wound.
The invention also provides a kind of gear pump, including pump shaft and gear, the gear is above-mentioned locking gear structure,
Pump shaft is arranged in internal thread hole by gear anti-release member.
Based on the disclosure of above technical scheme, the present invention possesses following beneficial effect：
Locking gear structure proposed by the present invention, including formed by steel wire wound and be in the gear anti-release member of shape of threads, gear is prevented
Loose part is spun in the internal thread hole of gear with certain pre-tensioning, and so, pump shaft is arranged on interior by gear anti-release member
In screwed hole, between each pitch being connected in the gear anti-release member of shape of threads with pump shaft screw thread equivalent to set one by
Spring washer is pressed, so as to by gear and the firm locking of pump shaft.By above-mentioned setting, in the pump shaft reversion of gear pump, can keep away
Exempt from the loosening between pump shaft and gear, prevent gear from being come off from pump shaft, improve the stability and reliability of gear pump work.
In the preferred technical solution of the present invention, in a free state, the external diameter of gear anti-release member is more than internal thread hole
Internal diameter, when installing into internal thread hole, the external diameter of gear anti-release member diminishes certain pre-tensioner so as to be formed in the presence of external force
Power, and be spun in internal thread hole, so, it can be securely fixed in internal thread hole, avoid in the gear anti-release member of shape of threads
Come off because of the reversion of pump shaft from internal thread hole, further increase the effect that gear loosens.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the locking gear structure of gear pump proposed by the present invention.
Fig. 2 is the structural representation of the gear anti-release member in shape of threads in this Fig. 1.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment：
As shown in figure 1, the structural representation of the locking gear structure for a kind of gear pump proposed by the present invention；As shown in Fig. 2 it is
It is in the structural representation of the gear anti-release member of shape of threads in this Fig. 1.
Refer to the attached drawing, the locking gear structure of gear pump proposed by the present invention, including gear 1, in gear 1
It is upper that the internal thread hole 11 of axial direction is set, in addition to formed by steel wire wound and be in the gear anti-release member 2 of shape of threads, gear anti-release member
2 are spun in internal thread hole 11 with certain pre-tensioning.
In above-mentioned technical proposal, locking gear structure includes being formed by steel wire wound and is in the gear anti-release member of shape of threads,
Gear anti-release member is spun in the internal thread hole of gear with certain pre-tensioning, and so, pump shaft is pacified by gear anti-release member
In internal thread hole, equivalent to setting one between each pitch being connected in the gear anti-release member of shape of threads with pump shaft screw thread
Individual compression spring washer, so as to by gear and the firm locking of pump shaft.Pass through above-mentioned setting, in the pump shaft reversion of gear pump, energy
Enough avoid the loosening between pump shaft and gear, prevent gear from being come off from pump shaft, improve gear pump work stability and can
By property.
As optimal technical scheme, in a free state, the external diameter of gear anti-release member is more than the internal diameter of internal thread hole, installation
When entering internal thread hole, the external diameter of gear anti-release member diminishes so as to form certain pre-tensioning in the presence of external force, and is spun on
It in internal thread hole, so, can be securely fixed in internal thread hole, avoid anti-because of pump shaft in the gear anti-release member of shape of threads
Then come off from internal thread hole, further increase the effect that gear loosens.
During specific design, the axial length of gear anti-release member 2 can be set to be less than or equal to internal thread hole 11
Axial length, so, the contact area of gear anti-release member 2 and internal thread hole 11 can be increased, and gear anti-release member can be increased
Contact area between 2 and pump shaft so that its connection is more firm.
In the above-mentioned technical solutions, the gear anti-release member 1 is formed by stainless steel steel wire wound.
The invention also provides a kind of gear pump, including pump shaft and gear, the gear is above-mentioned locking gear structure,
Pump shaft by gear anti-release member 2 be arranged on internal thread hole 11 in, so as to gear pump pump shaft reversion when, can avoid pump shaft with
Loosening between gear, prevents gear from being come off from pump shaft, improves the stability and reliability of gear pump work.
Claims (5)
1. a kind of locking gear structure of gear pump, including gear (1), the interior spiral shell of axial direction is set in gear (1)
Pit (11), it is characterised in that also include being formed by steel wire wound and be in the gear anti-release member (2) of shape of threads, gear anti-release member
(2) it is spun on certain pre-tensioning in internal thread hole (11).
2. locking gear structure according to claim 1, it is characterised in that in a free state, gear anti-release member (2)
External diameter is more than the internal diameter of internal thread hole (11), so that when installing into internal thread hole (11), gear anti-release member (2) is formed necessarily
Pre-tensioning is simultaneously spun in internal thread hole (11).
3. locking gear structure according to claim 1, it is characterised in that the axial length of gear anti-release member (2) is less than
Or the axial length equal to internal thread hole (11).
4. according to the locking gear structure described in claim any one of 1-3, it is characterised in that the gear anti-release member (2) by
Stainless steel steel wire wound forms.
5. a kind of gear pump, including pump shaft and gear, it is characterised in that the gear is described in claim any one of 1-4
Locking gear structure, pump shaft are arranged in internal thread hole (11) by gear anti-release member (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694658.0A CN107559189A (en) | 2017-08-15 | 2017-08-15 | The locking gear structure and gear pump of a kind of gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694658.0A CN107559189A (en) | 2017-08-15 | 2017-08-15 | The locking gear structure and gear pump of a kind of gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107559189A true CN107559189A (en) | 2018-01-09 |
Family
ID=60975540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710694658.0A Withdrawn CN107559189A (en) | 2017-08-15 | 2017-08-15 | The locking gear structure and gear pump of a kind of gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107559189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725360A (en) * | 2017-10-21 | 2018-02-23 | 王友宏 | The locking gear structure and gear pump of a kind of gear pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202579176U (en) * | 2012-03-12 | 2012-12-05 | 安徽莱恩电泵有限公司 | Anti-loosening gear structure for gear pump and gear pump |
| CN103742408A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-loosening gear pump |
| CN103742407A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-loosening gear pump |
-
2017
- 2017-08-15 CN CN201710694658.0A patent/CN107559189A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202579176U (en) * | 2012-03-12 | 2012-12-05 | 安徽莱恩电泵有限公司 | Anti-loosening gear structure for gear pump and gear pump |
| CN103742408A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-loosening gear pump |
| CN103742407A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-loosening gear pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725360A (en) * | 2017-10-21 | 2018-02-23 | 王友宏 | The locking gear structure and gear pump of a kind of gear pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102619781A (en) | Device and method for connecting impeller with shaft of compressor | |
| CN206802055U (en) | Anti-loosening bolt | |
| CN107559189A (en) | The locking gear structure and gear pump of a kind of gear pump | |
| CN209083782U (en) | A kind of stop nut with double locking mechanism | |
| CN202579297U (en) | Anti-looseness blade wheel structure of double suction pump, and double suction pump | |
| CN107725360A (en) | The locking gear structure and gear pump of a kind of gear pump | |
| CN202579176U (en) | Anti-loosening gear structure for gear pump and gear pump | |
| CN201326630Y (en) | Unloosening bolt | |
| CN107327423A (en) | The locking blade wheel structure and water ring pump of a kind of water ring pump | |
| CN202493521U (en) | Connecting structure of hydraulic cylinder end | |
| CN104405755A (en) | Bolt set for connecting plate and shaft parts | |
| CN202284132U (en) | Spiral elevator | |
| CN207364078U (en) | A kind of anti-loosening bolt assembly easily assembled | |
| CN202579304U (en) | Water ring pump and locked impeller structure thereof | |
| CN202579296U (en) | Locking impeller structure of single suction pump and single suction pump | |
| CN107806443A (en) | The locking blade wheel structure and water ring pump of a kind of water ring pump | |
| CN203223456U (en) | Anti-loose structure of nut | |
| CN210575573U (en) | Torque-resistant switch wire harness connector | |
| CN102996599A (en) | High-strength double-layer lubricating bolt | |
| CN203844275U (en) | Two-stage squeezing screw and oil squeezing device | |
| CN206159228U (en) | Bolt of sealed function in area | |
| CN210637468U (en) | Locking structure of planetary gear shaft of differential mechanism | |
| CN206246495U (en) | A kind of special-shaped screw | |
| CN108980097A (en) | A kind of dynamic device of sewage pump impeller anti-loose | |
| CN205937397U (en) | Hexagonal flange nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180109 |