CN203248358U - Energy-saving variable-speed pump - Google Patents
Energy-saving variable-speed pump Download PDFInfo
- Publication number
- CN203248358U CN203248358U CN 201320231424 CN201320231424U CN203248358U CN 203248358 U CN203248358 U CN 203248358U CN 201320231424 CN201320231424 CN 201320231424 CN 201320231424 U CN201320231424 U CN 201320231424U CN 203248358 U CN203248358 U CN 203248358U
- Authority
- CN
- China
- Prior art keywords
- gear
- driven gear
- driving gear
- receiving cavity
- gap
- 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
Links
Images
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model discloses an energy-saving variable-speed pump which can effectively avoid scraping, and is simple in structure and high in operating efficiency. The energy-saving variable-speed pump comprises a pump body and a corresponding cover plate, as well as a driving gear and a driven gear which are mutually meshed and arranged in the accommodating cavity of the pump body, wherein the main body parts or the toothed root parts of the driving gear and the driven gear are respectively longer than the toothed parts from the two ends; a gap is formed between the two end surfaces of the toothed parts of the driving gear and the driven gear and the corresponding side wall surfaces of the gear accommodating cavity of the pump body respectively.
Description
Technical field
The utility model relates to a kind of energy-conservation variable speed pump for engineering machinery.
Background technique
The variable speed pump that existing loader vibration hydraulic system is used, reason owing to aspects such as structures, gear scraping phenomenon more or less nearly all can appear during work, this scraping phenomenon can comprise axially and radially scraping, the tooth end surface at the flank of tooth of gear and gear two ends is subjected to action of hydraulic force can sweep the corresponding site of scraping the pump housing and cover plate when namely working, this not only causes oil contamination, increase load and the operational noise of pump, the more important thing is reduction working efficiency, stability, reliability and working life.
The model utility content
The purpose of this utility model is the deficiency that exists for prior art, and a kind of energy-conservation variable speed pump is provided.This energy-conservation variable speed pump can effectively overcome the scraping phenomenon, and is simple in structure, and operational efficiency is high, failure rate is low, and long service life, simple in structure.
The technological scheme of the energy-conservation variable speed pump of the utility model comprises the pump housing and corresponding cover plate thereof, be located at intermeshing driving gear and driven gear in the pump housing receiving cavity, the main part of described driving gear and driven gear or tooth root section grow from its two ends in its tooth section respectively, form a gap respectively between the corresponding side wall surface of the gear receiving cavity of the tooth section two ends end face of driving gear and driven gear and the pump housing.
The gap that forms between the corresponding sidewall of the tooth section two ends end face of described driving gear and driven gear and the receiving cavity of the pump housing is 0.005-0.02mm.
Gap between the low voltage side sidewall of the flank of tooth of described driving gear and driven gear and the corresponding receiving cavity of the pump housing is greater than the gap between the high pressure side sidewall of itself and corresponding receiving cavity.
The flank of tooth of described driving gear and driven gear respectively and the gap between the low voltage side sidewall of corresponding receiving cavity greater than the gap 0.01-0.02mm between the high pressure side sidewall of itself and corresponding receiving cavity.
The energy-conservation variable speed pump of the utility model can overcome gear radially scraping and or axially sweep and scrape, and cleaning, energy-conservation, noise is low, the life-span is long.
Description of drawings
Fig. 1 is the energy-conservation variable speed pump one example structure schematic representation of the utility model.
Embodiment
Now by embodiment and accompanying drawing the energy-conservation variable speed pump of the utility model is further specified.
As shown in Figure 1, the energy-conservation variable speed pump of present embodiment comprises the driving gear 2 of the pump housing 1, cover plate 4, intermeshing transmission and driven gear 3 thereof etc., driving gear 2 and driven gear 3 thereof are located in the gear receiving cavity of the pump housing 1, and the tooth root section of driving gear 2 and driven gear 3 respectively symmetry properties grows from its two ends in its tooth section; Namely respectively the two ends end face 2a of tooth section of driving gear 2 and the two ends end face 3a of tooth section of driven gear 3 are carried out axial reconditioning (grinding), in the two ends end face 3a of tooth section of the two ends end face 2a of tooth section of driving gear 2 and driven gear 3 respectively and form the gap of 0.005-0.009mm or 0.01-0.02mm between two lateral walls face 5a, the 5b of the corresponding gear receiving cavity of the pump housing and the corresponding cover plate 4 thereof.
And can be in gear in the radial direction, the flank of tooth of driving gear 2 and driven gear 3 respectively and the gap between the corresponding sidewall of the low voltage side of master and slave gear receiving cavity greater than the gap 0.01-0.02mm between the corresponding sidewall in high pressure side of itself and master and slave gear receiving cavity.
Other modified products based on the technological scheme of this energy-conservation variable speed pump all belong to protection domain of the present utility model; Above-described embodiment is not the exhaustive of embodiment of the present utility model.
Claims (4)
1. energy-conservation variable speed pump, comprise the pump housing and corresponding cover plate thereof, be located at intermeshing driving gear and driven gear in the pump housing receiving cavity, the main part of described driving gear and driven gear or tooth root section grow from its two ends in its tooth section respectively, form a gap respectively between the corresponding side wall surface of the gear receiving cavity of the tooth section two ends end face of driving gear and driven gear and the pump housing.
2. described energy-conservation variable speed pump according to claim 1 is characterized in that the gap that forms between the corresponding sidewall of receiving cavity of the tooth section two ends end face of described driving gear and driven gear and the pump housing is 0.005-0.02mm.
3. described energy-conservation variable speed pump according to claim 1 is characterized in that gap between the low voltage side sidewall of corresponding receiving cavity of the flank of tooth of described driving gear and driven gear and the pump housing is greater than the gap between the high pressure side sidewall of itself and corresponding receiving cavity.
4. described energy-conservation variable speed pump according to claim 3, the flank of tooth that it is characterized in that described driving gear and driven gear respectively and the gap between the low voltage side sidewall of corresponding receiving cavity greater than the gap 0.01-0.02mm between the high pressure side sidewall of itself and corresponding receiving cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231424 CN203248358U (en) | 2013-05-02 | 2013-05-02 | Energy-saving variable-speed pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231424 CN203248358U (en) | 2013-05-02 | 2013-05-02 | Energy-saving variable-speed pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248358U true CN203248358U (en) | 2013-10-23 |
Family
ID=49374800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320231424 Expired - Fee Related CN203248358U (en) | 2013-05-02 | 2013-05-02 | Energy-saving variable-speed pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248358U (en) |
-
2013
- 2013-05-02 CN CN 201320231424 patent/CN203248358U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204003439U (en) | The two screw pump of helical blade line with rubber on a kind of pump shaft | |
| CN203248358U (en) | Energy-saving variable-speed pump | |
| CN104776163A (en) | Vertical shaft type two-stage cylindrical gear reducer | |
| CN202301764U (en) | Speed reducer | |
| CN202251505U (en) | Coupler for industrial filling pump | |
| CN204610599U (en) | A kind of chisel teeth coupling | |
| CN102865225B (en) | multi-channel cycloid rotor pump | |
| CN203098808U (en) | Gear reducer | |
| CN201944228U (en) | Hard tooth surface gear in gearbox | |
| CN204312624U (en) | Brick machine is speed reducer dedicated | |
| CN203248359U (en) | Long-life gear oil pump | |
| CN102808931B (en) | Twin countershaft transmission main shaft assembly | |
| CN203297522U (en) | Worm wheel and worm mechanism adopting double-enveloping worm | |
| CN104653454A (en) | Internal meshed cycloid gear pump | |
| CN202392417U (en) | Gear type oil pump provided with end surface ablation grooves at oil discharge end | |
| CN204755751U (en) | Bevel gear speed reducer with jump ring | |
| CN204127264U (en) | A kind of rotating shaft with geared sleeve | |
| CN210917189U (en) | Inner gearing gear coupling for snow removing rolling brush device | |
| CN101985928A (en) | High efficiency energy-saving gear pump and manufacturing method thereof | |
| CN202926902U (en) | High-speed and heavy-duty drum-shaped hard tooth surface gear coupling | |
| CN201855902U (en) | Reinforced steel bar cutting machine | |
| CN204127091U (en) | The rotating shaft of double protection | |
| CN202370838U (en) | Sealing structure of external gear pump | |
| CN202690884U (en) | Petroleum underground speed reducer | |
| CN204716537U (en) | A kind of hydraulic gear pump lateral plate with U-shaped compensating groove |
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 |
Granted publication date: 20131023 Termination date: 20150502 |
|
| EXPY | Termination of patent right or utility model |