CN203640999U - Shaft-broken triple gear pump - Google Patents
Shaft-broken triple gear pump Download PDFInfo
- Publication number
- CN203640999U CN203640999U CN201320747244.7U CN201320747244U CN203640999U CN 203640999 U CN203640999 U CN 203640999U CN 201320747244 U CN201320747244 U CN 201320747244U CN 203640999 U CN203640999 U CN 203640999U
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- CN
- China
- Prior art keywords
- gear shaft
- level
- pump
- driving gear
- shaft
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- Expired - Fee Related
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model relates to a high-pressure gear pump, and in particular relates to a shaft-broken triple gear pump. The shaft-broken triple gear pump comprises a rear cover, a second-stage middle pump cover, a first-stage middle pump cover and a front cover which are connected integrally in sequence; a third-stage drive gear shaft and a third-stage driven gear shaft are arranged in the inner cavity formed by the rear cover and the second-stage middle pump cover; the third-stage drive gear shaft is engaged with the third-stage driven gear shaft; a second-stage drive gear shaft and a second-stage driven gear shaft are arranged in the inner cavity formed by the second-stage middle pump cover and the first-stage middle pump cover; the second-stage drive gear shaft is engaged with the second-stage driven gear shaft; a first-stage drive gear shaft and a first-stage driven gear shaft are arranged in the inner cavity formed by the first-stage middle pump cover and the front cover; and the first-stage drive gear shaft is engaged with the first-stage driven gear shaft. The shaft-broken triple gear pump is simple, compact and reasonable in structure; the damages to the drive gear shafts and side plates caused by axial impact are effectively avoided; and the use conditions of a multiplex pump are more diversified, and the server life of the multiplex pump is longer.
Description
Technical field
The utility model relates to a kind of high-pressure gear pump, and a kind of off-axis formula combination triple gear pump, belongs to gear pump technical field specifically.
Background technique
In modern hydraulic transmission, multi-joint hydraulic gear pump is a kind of device that vertically two or more gear pumps are together in series, can combination in any by a drive shaft, each pump delivery.Multi-joint hydraulic gear pump is quoted wide range, mechanically all has use at various lathes, light industry and machinery, fork truck, loader, automobile, internal combustion locomotive, aircraft and other.
The multi-joint hydraulic gear pump using at present generally adopts the following kind of drive, by driving the rotation of I level driving gear shaft, drives the action of I level passive tooth wheel shaft, thereby realizes the work of the first gear pump.The second gear pump is by the first coupling shaft, I level driving gear shaft 1 and II level driving gear shaft to be coupled together, and realizes the action of the second gear pump.In like manner combination triple gear pump is coupled together II level driving gear shaft and III level driving gear shaft to realize action by the second coupling shaft.In transmission process, I level driving gear shaft bears extraneous power, and gear pump inner sealing system easily goes to pot.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency; thereby provide a kind of off-axis formula combination triple gear pump; by the design improvement to multiplex pump axle head; I level driving gear shaft is divided into two; an axle sleeve for counteracting axial force, another driving gear shaft that is transmitting torque, by installing axle sleeve to be positioned on the roller bearing of protecgulum; thereby reach the effect of offsetting axial force and radial force, be more conducive to protect each pump housing frock situation of multiplex pump.
The technological scheme providing according to the utility model, off-axis formula combination triple gear pump comprises in the bonnet, II level that is in turn connected into one pump cover and protecgulum in pump cover, I level, in the inner chamber that in bonnet and II level, pump cover forms, III level driving gear shaft and III level driven gear shaft are installed, III level driving gear shaft and III level driven gear shaft intermesh.In the inner chamber that in II level, in pump cover and I level, pump cover forms, II level driving gear shaft and II level driven gear shaft are installed, II level driving gear shaft and II level driven gear shaft intermesh.In the inner chamber that in I level, pump cover and protecgulum form, I level driving gear shaft and I level driven gear shaft are installed, I level driving gear shaft and I level driven gear shaft intermesh.Described I level driving gear shaft and II level driving gear shaft are by the first coupling shaft connection for transmission, II level driving gear shaft and III level driving gear shaft are by the second coupling shaft connection for transmission, it is characterized in that: described I level driving gear shaft, by spline joint axle sleeve, is provided with bearing between axle sleeve and protecgulum.Axle sleeve is provided with pad and jump ring, and pad and jump ring are positioned at bearing both sides.
Further, between I level driving gear shaft and protecgulum, be provided with oil sealing.
Further, in I level driving gear shaft, I level driven gear shaft and I level, between pump cover, protecgulum, be provided with the first side plate.
Further, in II level driving gear shaft, II level driven gear shaft and II level, in pump cover, I level, between pump cover, be provided with the second side plate.
Further, in III level driving gear shaft, III level driven gear shaft and bonnet, II level, between pump cover, be provided with the 3rd side plate.
Further, in bonnet, II level, in pump cover, I level, between pump cover and protecgulum, be provided with the O RunddichtringO for sealing.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, compact, reasonable, and the injury of effectively avoiding axial impact to bring to driving gear shaft, side plate, makes the applying working condition of multiplex pump more various, and the life-span of multiplex pump is longer.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Description of reference numerals: pump cover, 4-protecgulum, 5-the second coupling shaft, 6-the first coupling shaft, 7-I level driving gear shaft, 8-oil sealing, 9-pad, 10-bearing, 11-jump ring, 12-axle sleeve, 13-III level driving gear shaft, 14-II level driving gear shaft, 15-III level driven gear shaft, 16-II level driven gear shaft, 17-I level driven gear shaft, 18-the 3rd side plate, 19-the second side plate, 20-the first side plate, 21-O RunddichtringO in pump cover, 3-I level in 1-bonnet, 2-II level.
Embodiment
The utility model is further described in connection with the embodiment in accompanying drawing below:
As shown in Figure 1, the utility model mainly comprises in the bonnet 1, II level that is in turn connected into one pump cover 3 and protecgulum 4 in pump cover 2, I level, III level driving gear shaft 13 and III level driven gear shaft 15 are installed in the inner chamber that in bonnet 1 and II level, pump cover 2 forms, and III level driving gear shaft 13 and III level driven gear shaft 15 intermesh.II level driving gear shaft 14 and II level driven gear shaft 16 are installed in the inner chamber that in II level, in pump cover 2 and I level, pump cover 3 forms, and II level driving gear shaft 14 and II level driven gear shaft 16 intermesh.I level driving gear shaft 7 and I level driven gear shaft 17 are installed in the inner chamber that in I level, pump cover 3 and protecgulum 4 form, and I level driving gear shaft 7 and I level driven gear shaft 17 intermesh.
Described I level driving gear shaft 7, by spline joint axle sleeve 12, is provided with bearing 10 between axle sleeve 12 and protecgulum 4.Axle sleeve 12 is provided with pad 9 and jump ring 11, and pad 9 and jump ring 11 are positioned at bearing 10 both sides, prevents that bearing 10 from departing from.
Described I level driving gear shaft 7 and II level driving gear shaft 14 are by the first coupling shaft 6 connection for transmissions, and II level driving gear shaft 14 and III level driving gear shaft 13 are by the second coupling shaft 5 connection for transmissions.
Between described I level driving gear shaft 7 and protecgulum 4, be provided with oil sealing 8, prevent that internal hydraulic pressure oil from leaking.
In described I level driving gear shaft 7, I level driven gear shaft 17 and I level, between pump cover 3, protecgulum 4, be provided with the first side plate 20, in II level driving gear shaft 14, II level driven gear shaft 16 and II level, in pump cover 2, I level, between pump cover 3, be provided with the second side plate 19, in III level driving gear shaft 13, III level driven gear shaft 15 and bonnet 1, II level, between pump cover 2, be provided with the 3rd side plate 18.
In described bonnet 1, II level, in pump cover 2, I level, between pump cover 3 and protecgulum 4, be provided with the O RunddichtringO 21 for sealing.
Working principle of the present utility model is: the utility model adopts I level driving gear shaft and axle sleeve by spline joint, and axle sleeve is by jump ring and self design step and be fixed on bearing, and bearing is fixed on protecgulum by jump ring and pad and protecgulum interior step structure.Such project organization utilizes axle sleeve to offset extraneous any axial force and radial force completely, can effectively avoid I level driving gear shaft to bear extraneous power, reaches and avoids gear pump inner sealing system to go to pot and can effectively extend product working life.
Claims (6)
1. an off-axis formula combination triple gear pump, comprise in the bonnet (1), II level that is in turn connected into one pump cover (3) and protecgulum (4) in pump cover (2), I level, in the inner chamber that in bonnet (1) and II level, pump cover (2) forms, III level driving gear shaft (13) and III level driven gear shaft (15) are installed, III level driving gear shaft (13) and III level driven gear shaft (15) intermesh; In the inner chamber that in pump cover in II level (2) and I level, pump cover (3) forms, II level driving gear shaft (14) and II level driven gear shaft (16) are installed, II level driving gear shaft (14) and II level driven gear shaft (16) intermesh; In the inner chamber that pump cover in I level (3) and protecgulum (4) form, I level driving gear shaft (7) and I level driven gear shaft (17) are installed, I level driving gear shaft (7) and I level driven gear shaft (17) intermesh; Described I level driving gear shaft (7) and II level driving gear shaft (14) are by the first coupling shaft (6) connection for transmission, II level driving gear shaft (14) and III level driving gear shaft (13) are by the second coupling shaft (5) connection for transmission, it is characterized in that: described I level driving gear shaft (7), by spline joint axle sleeve (12), is provided with bearing (10) between axle sleeve (12) and protecgulum (4); Axle sleeve (12) is provided with pad (9) and jump ring (11), and pad (9) and jump ring (11) are positioned at (10) both sides that have bearing.
2. off-axis formula combination triple gear pump as claimed in claim 1, is characterized in that: between described I level driving gear shaft (7) and protecgulum (4), be provided with oil sealing (8).
3. off-axis formula combination triple gear pump as claimed in claim 1, is characterized in that: in described I level driving gear shaft (7), I level driven gear shaft (17) and I level, between pump cover (3), protecgulum (4), be provided with the first side plate (20).
4. off-axis formula combination triple gear pump as claimed in claim 1, is characterized in that: in described II level driving gear shaft (14), II level driven gear shaft (16) and II level, in pump cover (2), I level, between pump cover (3), be provided with the second side plate (19).
5. off-axis formula combination triple gear pump as claimed in claim 1, is characterized in that: in described III level driving gear shaft (13), III level driven gear shaft (15) and bonnet (1), II level, between pump cover (2), be provided with the 3rd side plate (18).
6. off-axis formula combination triple gear pump as claimed in claim 1, is characterized in that: in described bonnet (1), II level, in pump cover (2), I level, between pump cover (3) and protecgulum (4), be provided with the O RunddichtringO (21) for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747244.7U CN203640999U (en) | 2013-11-22 | 2013-11-22 | Shaft-broken triple gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747244.7U CN203640999U (en) | 2013-11-22 | 2013-11-22 | Shaft-broken triple gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640999U true CN203640999U (en) | 2014-06-11 |
Family
ID=50872252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320747244.7U Expired - Fee Related CN203640999U (en) | 2013-11-22 | 2013-11-22 | Shaft-broken triple gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013454A (en) * | 2017-04-13 | 2017-08-04 | 天津市汇晶丰精密机械有限公司 | A kind of reinforced combination triple gear pump |
-
2013
- 2013-11-22 CN CN201320747244.7U patent/CN203640999U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013454A (en) * | 2017-04-13 | 2017-08-04 | 天津市汇晶丰精密机械有限公司 | A kind of reinforced combination triple gear pump |
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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: 20140611 Termination date: 20201122 |