CN203853753U - Cylinder liner press-fitting device - Google Patents
Cylinder liner press-fitting device Download PDFInfo
- Publication number
- CN203853753U CN203853753U CN201420240308.9U CN201420240308U CN203853753U CN 203853753 U CN203853753 U CN 203853753U CN 201420240308 U CN201420240308 U CN 201420240308U CN 203853753 U CN203853753 U CN 203853753U
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- China
- Prior art keywords
- vertical rod
- self
- press
- hole
- steel ball
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- 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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Automatic Assembly (AREA)
Abstract
The utility model relates to the technical field of engine assembly equipment and provides a cylinder liner press-fitting device. The cylinder liner press-fitting device comprises a vertical rod, a self-locking part, a V-shaped connector, a pressure rod, a steel ball, a steel ball holder and a pressure cover, and the self-locking part sleeves the vertical rod and is provided with a through hole, a free end and a hinged end. A gap is reserved between the through hole and the vertical rod and used for enabling the self-locking part to incline automatically so as to realize self locking and unlocking, the distance between a fulcrum and a pry point of the pressure rod is shortened, continuous and stepless press fitting of the pressure rod is realized, and the defect of repeated switching of cuts of an original sawtoothed rod is overcome. Moreover, the problem of reduction of press-fitting quality due to proneness to compression of a cylinder liner during press fitting is solved.
Description
Technical field
The utility model belongs to engine assembly equipment technical field, relates in particular to a kind of cylinder jacket press-loading apparatus.
Background technology
Engine in the course of the work cylinder surfaces is bearing sizable gas pressure and side pressure of piston, and they are all periodically variable alternate loads.In addition, piston high-speed motion in cylinder also can accelerate the wearing and tearing of cylinder wall.Use at present block structure form comparatively widely to adopt thin-walled dry cylinder liner more, improve the wearability of the cylinder wall of body, improved the processing technology of cylinder bottom outlet rigidity and cylinder cover inner hole.
In dry type thin-walled engine, cylinder jacket coordinates with body for excessively coordinating, and thin-walled dry type cylinder jacket cylindraceous need to be pressed in body, at present, as shown in Figure 1, it mainly comprises saw teeth bars 11, lever 12 and lid 13 to conventional pressing in tool, and it has following defect:
(1) because the fulcrum of lever 12 is large with the distance of sled point, cause the assembling application of force large, operator's two less touch with the ground are all pressed to enter, and assembling has to adopt the rough mode of knocking in to be assembled at need, thereby affects product quality;
(2) between the sawtooth of saw teeth bars 11, must there is spacing, must repeatedly switch breach, cylinder jacket could be pressed into body, complex operation;
(3) firmly resolve into greatly and thus to the lateral pressure of cylinder bore wall also accordingly greatly, and lateral pressure is useless in other words cylinder jacket being harmful to press-fiting, and the intensity of cylinder jacket is brought to threat.
Utility model content
The purpose of this utility model is to provide a kind of cylinder jacket press-loading apparatus, and the lateral pressure that the cylinder jacket pressing in tool that being intended to solve prior art provides exists assembling difficulty, complex operation and assembling to produce is brought the problem of impact to assembly quality.
The utility model is to realize like this, a kind of cylinder jacket press-loading apparatus, described device comprises that one end is arranged on the vertical rod in cylinder block screwed hole, in described vertical rod, be set with self-locking body, described self-locking body is provided with free end, hinged end and for described self-locking body is set in to the through hole in described vertical rod, between described through hole and described vertical rod, form gap, the length of the described through hole of described free end distance is greater than the length of the described through hole of described hinged end distance, described hinged end is hinged with V-arrangement connector by bearing pin, the other end of described V-arrangement connector connects depression bar, described V-arrangement connector be positioned at described cylinder block directly over, the lower surface of described V-arrangement connector is provided with V-shaped groove, described V-shaped groove has steel ball, described steel ball is arranged on steel ball seat, described steel ball seat is arranged in gland, described gland is pressed in cylinder jacket.
As a kind of improved plan, described vertical rod is positioned at described cylinder block screwed hole inside and is arranged with external screw thread, and described vertical rod is tightened in described cylinder block screwed hole by described external screw thread.
As a kind of improved plan, described V-arrangement connector is connected with described depression bar by the mode of welding.
Because cylinder jacket press-loading apparatus is comprised of vertical rod, the self-locking body, V-arrangement connector, depression bar, steel ball, steel ball seat and the gland that are sleeved in vertical rod, self-locking body is provided with through hole, free end and hinged end, wherein, between through hole and vertical rod, be provided with gap, be used for self-locking body wing drop to form self-locking and release, the fulcrum of depression bar and sled point distance are reduced, continuous and stepless press-fit of realization to depression bar, overcome the drawback of repeatedly switching otch of original saw teeth bars, meanwhile, overcome easy compressing cylinder jacket while press-fiting and caused press-fiting the problem that quality reduces.
Accompanying drawing explanation
Fig. 1 is the structural representation of the conventional cylinder jacket pressing in tool that provides of prior art;
Fig. 2 is the cutaway view of the cylinder jacket press-loading apparatus that provides of the utility model;
Fig. 3 is the structural representation of the self-locking body that provides of the utility model;
Fig. 4 is the structural representation of the V-arrangement connector that provides of the utility model;
Wherein, 11-saw teeth bars, 12-lever, 13-lid, 1-cylinder block, 2-vertical rod, 3-self-locking body, 31-free end, 32-hinged end, 33-through hole, 4-bearing pin, 5-V shape connector, 51-V shape groove, 6-depression bar, 7-steel ball, 8-steel ball seat, 9-gland, 10-cylinder jacket.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 2 shows the cutaway view that the utility model provides cylinder jacket press-loading apparatus, for convenience of explanation, has only provided the part relevant to the utility model in figure.
The cylinder jacket press-loading apparatus that the utility model provides comprises that one end is arranged on the vertical rod 2 in cylinder block 1 screwed hole, in described vertical rod 2, be set with self-locking body 3, described self-locking body 3 is provided with free end 31, hinged end 32 and for described self-locking body 3 is set in to the through hole 33 in described vertical rod 2, between described through hole 33 and described vertical rod 2, form gap, the length of the described through hole 33 of described free end 31 distance is greater than the length of the described through hole 33 of described hinged end 32 distance, described hinged end 32 is hinged with V-arrangement connector 5 by bearing pin 4, the other end of described V-arrangement connector 5 connects depression bar 6, described V-arrangement connector 5 be positioned at described cylinder block 1 directly over, the lower surface of described V-arrangement connector 5 is provided with V-shaped groove 51, described V-shaped groove 51 has steel ball 7, described steel ball 7 is arranged on steel ball seat 8, described steel ball seat 8 is arranged in gland 9, described gland 9 is pressed in cylinder jacket 10.
In the utility model, the end that is screwed into of bearing pin 4 is equipped with 1 type slotted nut, and adopts corresponding split pin to brake, and in figure, does not provide, and does not repeat them here, but need not limit the utility model.
In the utility model, the connected mode of V-arrangement connector 5 and depression bar 6 can have multiple, such as welding etc., does not repeat them here.
In the utility model, this cylinder jacket press-loading apparatus is convenient to be manually pressed into the cylinder jacket of interference fits 10 in cylinder block 1, utilize the locking phenomenon of self-locking body 3 and vertical rod 2, shortened the distance between depression bar 6 fulcrums and sled point, by manpower, just cylinder jacket can be pressed in cylinder block.
For the ease of understanding, following combination Fig. 2 and Fig. 4, be described operation principle of the present utility model and process, and its particular content is as follows:
Manually a small amount of sulfuration molybdenum powder is coated in the lower end of thin-walled dry liner 10, then pack into end pack into engine body a little, at thin-walled dry liner 10 tops, put gland 9, use cylinder head main thread hole vertical rod 2 is screwed in engine body, and self-locking body 3 is slipped into from vertical rod 2;
When self-locking body 3 covers are installed in vertical rod 2, owing to having certain gap between through hole 33 and vertical rod 2, and the free end 31 of self-locking body 3 is greater than hinged end 32 apart from the length of through hole 33 apart from the length of through hole 33, therefore under Action of Gravity Field, between the inner wall edge line of through hole 33 and vertical rod 2, form self-locking angle, as shown in the α in Fig. 2;
By moulded rod 6 and drive V-arrangement connector 5 to rotate around bearing pin 4, now will produce along the pressure assembling force vertically downward of cylinder-bore with perpendicular to the lateral pressure of cylinder bore wall, the V-shaped groove of V-arrangement connector 5 is pressed in steel ball 7 tops, pressure assembling force along cylinder-bore is delivered on gland 9 by pressure assembling force and then is delivered in cylinder jacket 10 by steel ball seat 8, and cylinder jacket 10 is pressed into cylinder block 1 certain depth;
Then lift depression bar 6, self-lock force is eliminated, and self-locking body 3 free ends 31 are sagging (Action of Gravity Field) automatically, again presses moulded rod 6, and self-locking body 3 pins again;
Go round and begin again like this, realize the process that press-fits by the thin-walled dry liner of manpower.
Wherein, in press-fiting process, lateral pressure is useless in other words cylinder jacket being harmful at this, can be reduced by dimensionally-optimised.
In the utility model, adopt technique scheme, it has following effect:
Laborsaving: because the fulcrum of depression bar 6 has been done and reduced to greatest extent with the distance of sled point, dry type thin-walled air cylinder sleeve of engine still can fill by Manpower after changing excessive cooperation into cylinder-bore;
Press-fiting of continuous stepless: when lifting depression bar, by the free-ended automatic downslide of self-locking body and inclination, can press-fit continuously and infinitely, overcome the drawback of repeatedly switching otch of saw teeth bars;
Operating process is softer, simple: while meeting obstructions the reaction of manual operation obvious, press not enter just to lift, and then press once the problem that easily crushes cylinder jacket while having avoided pure " machinery " to press-fit.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a cylinder jacket press-loading apparatus, it is characterized in that, described device comprises that one end is arranged on the vertical rod (2) in cylinder block (1) screwed hole, in described vertical rod (2), be set with self-locking body (3), described self-locking body (3) is provided with free end (31), hinged end (32) and for described self-locking body (3) being set in to the through hole (33) in described vertical rod (2), between described through hole (33) and described vertical rod (2), form gap, the length of described free end (31) the described through hole of distance (33) is greater than the length of described hinged end (32) the described through hole of distance (33), described hinged end (32) is hinged with V-arrangement connector (5) by bearing pin (4), the other end of described V-arrangement connector (5) connects depression bar (6), described V-arrangement connector (5) be positioned at described cylinder block (1) directly over, the lower surface of described V-arrangement connector (5) is provided with V-shaped groove (51), described V-shaped groove (51) has steel ball (7), described steel ball (7) is arranged on steel ball seat (8), described steel ball seat (8) is arranged in gland (9), described gland (9) is pressed in cylinder jacket (10).
2. cylinder jacket press-loading apparatus according to claim 1, it is characterized in that, described vertical rod (2) is positioned at described cylinder block (1) screwed hole inside and is arranged with external screw thread, and described vertical rod (2) is tightened in described cylinder block (1) screwed hole by described external screw thread.
3. cylinder jacket press-loading apparatus according to claim 1, is characterized in that, described V-arrangement connector (5) is connected with described depression bar (6) by the mode of welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240308.9U CN203853753U (en) | 2014-05-12 | 2014-05-12 | Cylinder liner press-fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240308.9U CN203853753U (en) | 2014-05-12 | 2014-05-12 | Cylinder liner press-fitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203853753U true CN203853753U (en) | 2014-10-01 |
Family
ID=51603632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240308.9U Expired - Fee Related CN203853753U (en) | 2014-05-12 | 2014-05-12 | Cylinder liner press-fitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203853753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874993A (en) * | 2015-04-08 | 2015-09-02 | 广西玉柴机器股份有限公司 | Piston mounter with automatic correcting and guiding function |
-
2014
- 2014-05-12 CN CN201420240308.9U patent/CN203853753U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874993A (en) * | 2015-04-08 | 2015-09-02 | 广西玉柴机器股份有限公司 | Piston mounter with automatic correcting and guiding function |
| CN104874993B (en) * | 2015-04-08 | 2017-05-24 | 广西玉柴机器股份有限公司 | Piston mounter with automatic correcting and guiding function |
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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: 20141001 Termination date: 20170512 |