CN200971859Y - Gear pump - Google Patents
Gear pump Download PDFInfo
- Publication number
- CN200971859Y CN200971859Y CN 200620125445 CN200620125445U CN200971859Y CN 200971859 Y CN200971859 Y CN 200971859Y CN 200620125445 CN200620125445 CN 200620125445 CN 200620125445 U CN200620125445 U CN 200620125445U CN 200971859 Y CN200971859 Y CN 200971859Y
- Authority
- CN
- China
- Prior art keywords
- gear pump
- motor
- ear shape
- protecgulum
- 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)
Abstract
The utility model discloses a gear pump for hydraulic transmission. The two sides of a front cover of the gear pump are provided with two ear like mounting flanges so that the commonly needed frame and shaft joint may be omitted in a motor connection and a direct motor connection may be realized by the earlike mounting flanges at the two sides of the front cover, which enhances the concentricity between an oil pump and a motor in mounting, weakens the mechanical vibration, improves the stability of the pressure of a hydraulic system and simultaneously makes the volumes of the oil pump and the entire motor smaller, thereby saving both mounting space and time.
Description
Technical field
The utility model relates to a kind of gear pump that is used for hydraulic pressure installation.
Background technique
Gear pump is the main device in the various hydraulic systems, is the conversion equipment that the mechanical energy of motor output is converted into the hydraulic pressure energy.Gear pump commonly used generally is made up of a pair of pitch wheel, the pump housing and front and rear covers.For ease of connecting of gear pump and motor, some connecting threads hole will be set on the protecgulum of gear pump, could realize being connected of gear pump and motor by suitable support and coupling.This connection complexity is difficult to guarantee high-precision installation coaxality and perpendicularity that cause mechanical vibration easily, this will directly influence the stability of whole hydraulic work system.
The model utility content
Technical problem to be solved in the utility model provided a kind of simple in structure, connect reliable gear pump.
For solving the problems of the technologies described above, the utility model has adopted following technological scheme: a kind of gear pump, comprise the pump housing and protecgulum, and described protecgulum both sides are provided with two ear shape mounting flanges, offer the construction bolt hole on the ear shape mounting flange.
In order to make gear pump more stable with connecting of motor, the mounting flange of ear shape described in the said gear pump is symmetricly set on protecgulum two middle side parts or top respectively.
According to processing conditions and the purpose being convenient to process, described ear shape flange can be rounded, square, arbitrary shape in rhombus or the rectangle, and the thickness of ear shape mounting flange is not more than 1/3 of pump housing thickness.
During as installed, the shaft extension of gear pump is inserted in the axis hole of motor, link by flat key and motor reel, the construction bolt hole that penetrates the ear shape mounting flange that is arranged on gear pump protecgulum both sides respectively with two bolts is screwed into the tapped hole that motor terminal covers simultaneously, directly connects with motor.
Because the utility model can directly connect with motor and do not need support and coupling, so installation difficulty reduces significantly, and the Master Cost and the mounting cost of saving support and coupling have been dwindled the volume of oil pump and motor single unit system; Simultaneously, also improved the installation coaxality between gear pump and the motor and perpendicularity has been installed, reduced mechanical vibration, reduced the heat that oil pump mechanical friction is produced, thereby improved the stability of hydraulic system pressure.In addition, owing to strengthened gear pump front cover and motor area of contact, improved the rigidity that connects between oil pump and the motor, made oil pump and motor firm more, reliably.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is existing gear pump protecgulum schematic representation;
Fig. 2 is a gear pump protecgulum schematic representation disclosed in the utility model;
Embodiment
As shown in Figure 1, offer initiatively axis hole 3 and driven axis hole 1 and several tapped holes 2 on the protecgulum of existing gear pump for installation usefulness.Connect when installing with motor, need the driving shaft of gear pump is connected with electric machine main shaft by coupling and two flat keys; With bolt support one end is connected on the end cap of motor, with bolt the other end of the support protecgulum tapped hole by gear pump is connected with gear pump simultaneously.
As shown in Figure 2, offer initiatively axis hole 3 and driven axis hole 1 on the protecgulum of gear pump provided by the utility model, set up symmetrical two ear shape mounting flanges 4 at its two upper lateral part, ear shape mounting flange offers flange mounting hole 5 respectively.The thickness of ear shape mounting flange 4 is not more than 1/3 of pump housing thickness.During as installed, the active shaft extension of gear pump is inserted in the axis hole of motor, links by a flat key and motor reel, penetrates ear shape mounting flange hole 5 respectively with two bolts simultaneously and is screwed into the tapped hole that motor terminal covers, and directly connects with motor.
Claims (4)
1, a kind of gear pump comprises the pump housing and the protecgulum that offers some mounting holes, and it is characterized in that: described protecgulum both sides are provided with two ear shape mounting flanges, offer flange mounting hole on the ear shape mounting flange.
2, gear pump as claimed in claim 1 is characterized in that: described ear shape mounting flange is symmetricly set on protecgulum two middle side parts or top respectively.
3, gear pump as claimed in claim 1 or 2 is characterized in that: the thickness of described ear shape mounting flange is not more than 1/3 of pump housing thickness.
4, gear pump as claimed in claim 3 is characterized in that: described ear shape mounting flange is rounded, square, arbitrary shape in rhombus or the rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125445 CN200971859Y (en) | 2006-11-24 | 2006-11-24 | Gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125445 CN200971859Y (en) | 2006-11-24 | 2006-11-24 | Gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200971859Y true CN200971859Y (en) | 2007-11-07 |
Family
ID=38883113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620125445 Expired - Fee Related CN200971859Y (en) | 2006-11-24 | 2006-11-24 | Gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200971859Y (en) |
-
2006
- 2006-11-24 CN CN 200620125445 patent/CN200971859Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20101124 |