CN202517436U - Bearing detaching device for gear pump - Google Patents
Bearing detaching device for gear pump Download PDFInfo
- Publication number
- CN202517436U CN202517436U CN2012201030227U CN201220103022U CN202517436U CN 202517436 U CN202517436 U CN 202517436U CN 2012201030227 U CN2012201030227 U CN 2012201030227U CN 201220103022 U CN201220103022 U CN 201220103022U CN 202517436 U CN202517436 U CN 202517436U
- Authority
- CN
- China
- Prior art keywords
- gear pump
- piston
- bearing
- pulling
- cylinder
- 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
Abstract
The utility model discloses a bearing detaching device for a gear pump. The technical scheme is as follows: the detaching device comprises an oil cylinder (2), an upwards-pulling piston (4) and a downwards-pressing piston (5), wherein pulling claws 7 are arranged on the outer face of an ejection rod of the downwards-pressing piston (5) and the lower end of the upwards-pulling piston (4). The beneficial effects of the scheme can be obtained according to the description of the scheme; the scheme comprises the oil cylinder, the upwards-pulling piston and the downwards-pressing piston, and the pulling claws are arranged on the outer face of the ejection rod of the downwards-pressing piston and the lower end of the upwards-pulling piston, so that the detachment of a bearing is finished by utilizing a working principle of a retractable sleeve hydraulic cylinder, stretching a primary hydraulic cylinder out to stretch cylindrical bottom feet of the pulling claws to a bearing end part, and pushing parts of the gear pump out by a secondary hydraulic cylinder. The pulling claws can be used for safely separating the bearing from the parts of the gear pump under the effect of the double pistons of the hydraulic cylinders, so that the bearing detaching device is labor-saving and safe. The bearing detaching device for the gear pump has the advantages of high sensitivity, simplicity of installation, convenience for use, low price, easiness for maintenance and the like.
Description
Technical field
The utility model relates to a kind of gear pump and uses bearing disassembling device, particularly adopts the laborsaving provision for disengagement efficiently of action of hydraulic force.
Background technology
Gear pump is as hydraulic power source, because have antipollution, advantage such as simple in structure, cheap, and is widely used by construction machinery hydraulic system.In the gear pump structure, driving gear, driven gear are by four bearings, and different according to structure, the bearing that has is contained in the forward and backward lid of gear pump, and the bearing that has is contained in the axle sleeve.Owing to many reasons in production or the process of the test, gear pump need do over again or disassemble.Because interference fit is adopted in bearing assembling, and an end group originally all is counterbore, dismantle bearing at present and mainly dismantle by simple tools, so inefficiency, labour intensity are big, and easy damage disassembled part and bearing, increased cost.
Summary of the invention
The purpose of the utility model just provides a kind of gear pump and uses bearing disassembling device, and this device not only can be extracted bearing laborsaving, fast, and can not damage bearing and parts wherein.The utility model is realized through following technology: a kind of gear pump use bearing disassembling device, include oil cylinder, on draw piston, press down piston, it is characterized in that: outside the said push rod that presses down piston, on draw the lower end of piston to be provided with pulling claw.Can change pulling claw according to the specification of being pulled out bearing.
The further improvement of the utility model has, and said pulling claw is a cylindrical sleeves, is provided with the cylinder footing at its cover tube bottom cylindrical.Purpose is to utilize the cylinder footing to hold bearing.
The further improvement of the utility model also has, and said cylinder footing is that two-piece type divides body structure.The cylinder footing external diameter of being convenient to swell.
The further improvement of the utility model also has, and the external diameter of said cylinder footing is greater than bearing bore diameter.Help cylinder footing rigid bearing.
The further improvement of the utility model also has, and the external diameter of said cylinder footing (10) is than the big 1.5～3mm of bearing bore diameter.
The further improvement of the utility model also has, and matches with the infundibulate endoporus of said footing (10) in the said infundibulate push rod bottom that presses down piston (5).Through hydraulic action, the push rod that presses down piston is exerted pressure to the cylinder footing, increases cylinder footing diameter very easily.
The beneficial effect of this programme can be learnt according to the narration to such scheme; Since this scheme include oil cylinder, on draw piston, press down piston; The push rod outside that presses down piston, on draw the lower end of piston to be provided with pulling claw, utilize the operation principle of telscoping hydaulic cylinder, the cylinder footing that the one-level hydraulic cylinder stretches out pulling claw reaches the bearing end; Two-stage hydraulic cylinder stretches out releases the gear pump part, just accomplishes the dismounting of bearing.Pulling claw can make bearing separate from the gear pump part under the double-piston effect of hydraulic jack safely.And laborsaving safety again.
Advantages such as the utility model tool is highly sensitive, installation is simple, easy to use, inexpensive, easy maintenance.
Description of drawings
Fig. 1 is the structural representation of the utility model, wherein, 1, oil inlet pipe, 2, oil cylinder, 3, the spring I, 4, on draw piston, 5, press down piston, 6, spring II, 7, pulling claw, 8, bearing, 9, bearing block, 10, the cylinder footing.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below through a specific embodiment, and combine its accompanying drawing, this programme is set forth.
Can find out that through accompanying drawing 1 this programme provides a kind of gear pump to use bearing disassembling device, include oil cylinder 2, on draw piston 4, press down piston 5, the push rod outside that presses down piston 5, on draw the lower end of piston 4 to be provided with pulling claw 7.In the actual processing, pulling claw 7 adopts cylindrical sleeves, is provided with cylinder footing 10 in the cylindrical sleeves bottom; Cylinder footing 10 divides body structure for two-piece type; The external diameter of cylinder footing 10 is greater than bearing bore diameter, and the external diameter that generally is cylinder footing 10 is than the big 1.5～3mm of bearing bore diameter, and the endoporus of cylinder footing 10 is an infundibulate; The push rod bottom that presses down piston 5 also is infundibulate, and it is consistent with the interior hole shape of the infundibulate of footing 10 to press down the push rod bottom infundibulate of piston 5.
Certainly; Above-mentioned explanation is not the restriction to the utility model; The utility model also be not limited only to above-mentioned for example, variation, remodeling, interpolation or replacement that those skilled in the art are made in the essential scope of the utility model also belong to the protection domain of the utility model.
Claims (8)
1. a gear pump is used bearing disassembling device, include oil cylinder (2), on draw piston (4), press down piston (5), it is characterized in that: the said push rod outside that presses down piston (5), on draw the lower end of piston (4) to be provided with pulling claw (7).
2. gear pump according to claim 1 is used bearing disassembling device, it is characterized in that: said pulling claw (7) is a cylindrical sleeves, is provided with cylinder footing (10) in said cylindrical sleeves bottom.
3. gear pump according to claim 2 is used bearing disassembling device, it is characterized in that: said cylinder footing (10) divides body structure for two-piece type.
4. use bearing disassembling device according to claim 2 or 3 described gear pumps, it is characterized in that: the external diameter of said cylinder footing (10) is greater than bearing bore diameter.
5. gear pump according to claim 4 is used bearing disassembling device, it is characterized in that: the external diameter of said cylinder footing (10) is than the big 1.5～3mm of bearing bore diameter.
6. gear pump according to claim 4 is used bearing disassembling device, it is characterized in that: the endoporus of said cylinder footing (10) is an infundibulate.
7. gear pump according to claim 6 is used bearing disassembling device, it is characterized in that: the said push rod bottom that presses down piston (5) is an infundibulate.
8. gear pump according to claim 7 is used bearing disassembling device, it is characterized in that: match with the infundibulate endoporus of said footing (10) in the said infundibulate push rod bottom that presses down piston (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201030227U CN202517436U (en) | 2012-03-19 | 2012-03-19 | Bearing detaching device for gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201030227U CN202517436U (en) | 2012-03-19 | 2012-03-19 | Bearing detaching device for gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202517436U true CN202517436U (en) | 2012-11-07 |
Family
ID=47100404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201030227U Expired - Fee Related CN202517436U (en) | 2012-03-19 | 2012-03-19 | Bearing detaching device for gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202517436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166259A1 (en) * | 2013-04-09 | 2014-10-16 | 北京康斯特仪表科技股份有限公司 | Fold-back coaxial gas booster pump and gas pressure creating method |
-
2012
- 2012-03-19 CN CN2012201030227U patent/CN202517436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166259A1 (en) * | 2013-04-09 | 2014-10-16 | 北京康斯特仪表科技股份有限公司 | Fold-back coaxial gas booster pump and gas pressure creating method |
| US10197053B2 (en) | 2013-04-09 | 2019-02-05 | Beijing Const Instrument Technology Inc. | Turn-back coaxial gas pressurizing pump and gas pressurizing method |
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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 |
Granted publication date: 20121107 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |