CN205572315U - Engine cam axle bush mounting tool - Google Patents
Engine cam axle bush mounting tool Download PDFInfo
- Publication number
- CN205572315U CN205572315U CN201620416042.8U CN201620416042U CN205572315U CN 205572315 U CN205572315 U CN 205572315U CN 201620416042 U CN201620416042 U CN 201620416042U CN 205572315 U CN205572315 U CN 205572315U
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- bearing shell
- telescopic shaft
- housing
- engine cam
- cam bearing
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Abstract
The utility model relates to an internal -combustion engine field, concretely relates to engine cam axle bush mounting tool, it includes: a housing. Transmission, atmospheric pressure transmission, hydraulic pressure transmission and setting promptly is used for controlling the air pressure transmission's air pressure switch and control hydraulic pressure transmission's the switch that surges on the casing, the telescopic shaft, for the hollow shaft, the left part setting in the casing, the right part setting is outside the casing, the proximity switch of setting on the casing. The utility model discloses an engine cam axle bush mounting tool, the installation accuracy is high, reduces human labor and manufacturing cost to can improve assembly efficiency.
Description
Technical field
This utility model relates to field of internal combustion engine, is specifically related to engine cam bearing shell installation tool.
Background technology
The bottom outlet overwhelming majority installed by engine cam bearing shell and engine body is interference fit, has two kinds of conventional mounting means: the temperature difference is assembled and press-fits.Temperature difference assembling utilizes the physical characteristic expanded with heat and contract with cold that material is intrinsic, heating enclosing element or cooling to be enclosed part, is on the one hand easy to the assembling of part, on the other hand damage matching surface can be reduced or avoided, it is thus achieved that firmly couple.Temperature difference efficiency of assembling is high, good reliability, it is not necessary to special equipment and fixture.For heating assembling, be easily caused after heating be heated uneven, produce internal stress, part will deform after cooling.For cooling assembling, typically part to be cooled to subzero less than 100 DEG C, require the highest to assembly environment, typically require that air is the driest, prevent parts list facial creamization from affect part and assemble, operator's protective cover to be worn is in order to avoid frost bitten.Press-fit i.e. room temperature assembling, part is not taked any special process, directly part is put into corresponding location positioning, then applies suitable load, overcome interference fit resistance, by axle sleeve load hole.Press-fit and need special equipment, such as with the equipment of load driving force, and special fixture or mechanical hand, this kind of assembly method is easily damaged matching surface.
High power density engine is a trend of current Engine Industry development, and target is to make the specific volume power of electromotor, weight per unit power etc. reach certain level.The highly integrated design of electromotor, small size, lightweight, high-power, high-performance, it is the highest to the requirement of assembly technology and assembly tool.Small high-power density engine cam bearing shell, the inapplicable cold and hot temperature difference of compact integral structure is installed；And press-fit and directly carry out cam bearing shell with iron hammer percussion plug so that labor strength is big, production efficiency low cost is high, has greatly damage to cam bearing shell.
Summary of the invention
In order to solve the problems referred to above, this utility model provides a kind of engine cam bearing shell installation tool, and cam bearing shell installation accuracy is high, reduces manual labor and production cost, improves efficiency of assembling.
The technical solution of the utility model is:
Engine cam bearing shell installation tool, including:
Housing；
Actuating device, it includes pneumatic actuator, hydraulic and is arranged on housing the pneumatic switch for controlling pneumatic actuator and controls the pushswitch of hydraulic；
Telescopic shaft, it is hollow axle, its left part is arranged in housing, right part is arranged on outside housing, the right part of described telescopic shaft is provided with at least one bearing shell positioning area, is provided with the telescopic locking ball for fixing bearing shell coordinated with bearing bush oil hole in described bearing shell positioning area；The right side of described bearing shell positioning area is provided with along telescopic shaft radially several bearing shell limited blocks telescopic；Described telescopic shaft is driven by hydraulic with axial stretching；Described locking ball and bearing shell limited block are driven by pneumatic actuator with by stretching out in telescopic shaft or being retracted in telescopic shaft respectively；
Proximity switch, it includes proximity switch I and proximity switch II, is arranged on housing, for following the tracks of the position signalling of telescopic shaft to control the start and stop of actuating device.
Above-mentioned engine cam bearing shell installation tool, described bearing shell positioning area is three, and it is corresponding with engine cam bearing shell hole respectively；Described bearing shell limited block be four and along telescopic shaft even circumferential be distributed.
Above-mentioned engine cam bearing shell installation tool, described telescopic shaft is provided with for positioning the positioning sleeve of relative axial position between telescopic shaft and engine cam bearing shell hole, described positioning sleeve is provided with the bolt being connected with engine body.
Above-mentioned engine cam bearing shell installation tool, also includes that it is connected with housing for the auxiliary stand promoted；Described auxiliary stand includes three vertical expansion links.
The beneficial effects of the utility model: carry out bearing shell installation by controlling air pressure and hydraulic drive, save artificial, and relative to axiality, axial dimension and the angle requirement in camshaft watt hole when being installed by each positioner, stopping means guarantee bearing shell；Can also arrange many group bearing shell positioning areas, can disposably carry out the installation of multiple bearing shell, efficiency of assembling is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is working state schematic representation of the present utility model；
Fig. 3 is the sectional view of A-A direction telescopic shaft in Fig. 2；
In figure: 1 is housing, 101 is pneumatic switch, and 102 is pushswitch, 2 is pneumatic actuator, and 3 is hydraulic, and 41 is proximity switch I, 42 is proximity switch II, and 5 is positioning sleeve, and 51 is bolt, 6 is bearing shell positioning area, and 61 is locking ball, and 7 is telescopic shaft, 8 is bearing shell limited block, and 9 is auxiliary stand, and 91 is expansion link, 10 is cam bearing shell, and 11 is cam bearing shell hole.
Detailed description of the invention
1 to 2 pair of this utility model further explains below in conjunction with the accompanying drawings.
The engine cam bearing shell installation tool of the present embodiment, including:
Housing 1；
Actuating device, it is arranged in housing 1, including pneumatic actuator 2, hydraulic 3 and the pneumatic switch 101 being arranged on housing 1 and pushswitch 102；
Telescopic shaft 7, it is hollow axle, its left part is arranged in housing 1, right part is arranged on outside housing 1, the right part of described telescopic shaft 7 is provided with at least one bearing shell positioning area 6, is provided with the telescopic locking ball 61 for fixing bearing shell coordinated with bearing bush oil hole in described bearing shell positioning area 6；The right side of described bearing shell positioning area 6 is provided with along telescopic shaft 7 radially several bearing shell limited blocks 8 telescopic；Described telescopic shaft 7 is driven by hydraulic 3 with axial stretching；Described locking ball 61 and bearing shell limited block 8 are driven by pneumatic actuator 2 with by stretching out in telescopic shaft 7 or being retracted in telescopic shaft 7 respectively；Before work, locking ball 61 and bearing shell limited block 8 are all in telescopic shaft 7；
Proximity switch, it includes proximity switch I 41 and proximity switch II 42, is arranged on housing 1, for following the tracks of the position signalling of telescopic shaft 7 to control the start and stop of actuating device.
Above-mentioned engine cam bearing shell installation tool, described bearing shell positioning area 6 is three and corresponding with engine cam bearing shell hole respectively；Described bearing shell limited block 8 be four and along telescopic shaft 7 even circumferential be distributed.Being so designed that, the installation tool of the present embodiment disposably can install three cam bearing shells 10, significantly reduces the installation coaxiality error between cam bearing shell 10, installation effectiveness is greatly improved.
Above-mentioned engine cam bearing shell installation tool, described telescopic shaft 7 is provided with for positioning the positioning sleeve 5 of relative axial position between telescopic shaft 7 and engine cam bearing shell hole, described positioning sleeve 5 is provided with the bolt 51 being connected with engine body.Being so designed that, telescopic shaft 7 is played guide effect by positioning sleeve 5, it is possible to reduce coaxiality error when installing further.
Above-mentioned engine cam bearing shell installation tool, also includes the auxiliary stand 9 for promoting, and it includes three vertical expansion links 91, and described expansion link 91 is all fixing with housing 1 to be connected.Being so designed that, adjustable and retractable bar 91 makes whole installation tool vertically translate, according to the regulation of different types of electromotor to the height being suitable for.
Shown in Fig. 2, use and the work process of the engine cam bearing shell installation tool of the present embodiment be:
1) adjustable telescopic rod 91 makes this installation tool to suitably height, makes telescopic shaft 7 and cam bearing shell hole almost coaxial, and positioning sleeve 5 is installed on the engine by bolt 51.
2) start to be placed in engine block telescopic shaft 7: when the spindle nose of telescopic shaft 7 is after leftmost camshaft hole 11, be set with a cam bearing shell 10, so until being set on telescopic shaft 7 by three cam bearing shells 10；Each cam bearing shell 10 is adjusted at bearing shell positioning area 6 and makes the oilhole alignment locking ball 10 on cam bearing shell 10.
3) opening pneumatic switch 101, pneumatic actuator 2 drives locking ball 10 to stretch out cam bearing shell 10 to be blocked and driven bearing shell limited block 8 stretch out (as shown in Figure 3) to limit cam bearing shell 10 play to the right.
4) open pushswitch 102, after proximity switch II 42 detects telescopic shaft 7 left position, hydraulic 3 drive telescopic shaft 7 to left, in now cam bearing shell 10 is gradually pressed into cam bearing shell hole 11；When telescopic shaft 7 left end moves at proximity switch I 41, hydraulic 3 is out of service, and cam bearing shell 10 is fully pressed in cam bearing shell hole 11.
5) closing pneumatic switch 101, locking ball 10 and bearing shell limited block 8 all bounce back to original state；Then, closing pushswitch 102, telescopic shaft 7 extends to original state；Telescopic shaft 7 is slowly removed by engine block, the lower positioning sleeve 5 of dismounting, complete installment work.
Engine cam bearing shell installation tool of the present utility model, installation accuracy is high, reduces manual labor and production cost, and can improve efficiency of assembling.
Claims (4)
1. engine cam bearing shell installation tool, it is characterised in that including:
Housing (1)；
Actuating device, it includes pneumatic actuator (2), hydraulic (3) and is arranged on the pneumatic switch (101) being used for controlling pneumatic actuator (2) on housing (1) and the pushswitch (102) controlling hydraulic (3)；
Telescopic shaft (7), it is hollow axle, its left part is arranged in housing (1), right part is arranged on housing (1) outward, it is provided with at least one bearing shell positioning area (6) on the right part of described telescopic shaft (7), in described bearing shell positioning area (6), is provided with the telescopic locking ball (61) for fixing bearing shell coordinated with bearing bush oil hole；The right side of described bearing shell positioning area (6) is provided with along telescopic shaft (7) several bearing shell limited blocks (8) the most telescopic；Described telescopic shaft (7) is driven by hydraulic (3) with axial stretching；Described locking ball (61) and bearing shell limited block (8) are driven by pneumatic actuator (2) with by stretching out in telescopic shaft (7) or being retracted in telescopic shaft (7) respectively；
Proximity switch, it includes proximity switch I (41) and proximity switch II (42), is arranged on housing (1), is used for the position signalling following the tracks of telescopic shaft (7) to control the start and stop of actuating device.
Engine cam bearing shell installation tool the most according to claim 1, it is characterised in that: described bearing shell positioning area (6) is three, and it is corresponding with engine cam bearing shell hole respectively；Described bearing shell limited block (8) be four and along telescopic shaft (7) even circumferential be distributed.
Engine cam bearing shell installation tool the most according to claim 1, it is characterized in that: be provided with the positioning sleeve (5) for positioning relative axial position between telescopic shaft (7) and engine cam bearing shell hole on described telescopic shaft (7), described positioning sleeve (5) is provided with the bolt (51) being connected with engine body.
Engine cam bearing shell installation tool the most according to claim 1, it is characterised in that: also include that it is connected with housing (1) for the auxiliary stand (9) promoted；Described auxiliary stand (9) includes three vertical expansion links (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416042.8U CN205572315U (en) | 2016-05-10 | 2016-05-10 | Engine cam axle bush mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416042.8U CN205572315U (en) | 2016-05-10 | 2016-05-10 | Engine cam axle bush mounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205572315U true CN205572315U (en) | 2016-09-14 |
Family
ID=56857065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620416042.8U Active CN205572315U (en) | 2016-05-10 | 2016-05-10 | Engine cam axle bush mounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205572315U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695656A (en) * | 2016-11-22 | 2017-05-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Bearing pad replacement method of heavy gas turbine |
| CN110587542A (en) * | 2019-10-11 | 2019-12-20 | 珞石（北京）科技有限公司 | Camshaft sleeve press-fitting device |
| CN112140054A (en) * | 2020-10-12 | 2020-12-29 | 中车资阳机车有限公司 | Portable and rapid engine cam bearing bush dismounting tool |
-
2016
- 2016-05-10 CN CN201620416042.8U patent/CN205572315U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695656A (en) * | 2016-11-22 | 2017-05-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Bearing pad replacement method of heavy gas turbine |
| CN110587542A (en) * | 2019-10-11 | 2019-12-20 | 珞石（北京）科技有限公司 | Camshaft sleeve press-fitting device |
| CN112140054A (en) * | 2020-10-12 | 2020-12-29 | 中车资阳机车有限公司 | Portable and rapid engine cam bearing bush dismounting tool |
| CN112140054B (en) * | 2020-10-12 | 2024-04-16 | 中车资阳机车有限公司 | Portable and quick dismounting tool for engine cam bearing bush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250306 No. 11966 Jingshixi Road, Changqing District, Jinan City, Shandong Province Co-patentee after: China Petroleum and Natural Gas Group Co., Ltd. Patentee after: China Petroleum Group jichai Power Co. Ltd. Co-patentee after: Jinan Diesel Engine Co., Ltd. Address before: 250306 No. 11966 Jingshixi Road, Changqing District, Jinan City, Shandong Province Co-patentee before: China National Petroleum Corporation Patentee before: CNPC Jichai Power Equipment Company Co-patentee before: Jinan Diesel Engine Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |