CN204004057U - A kind of integrated form slide-block mechanism and synchronizer - Google Patents
A kind of integrated form slide-block mechanism and synchronizer Download PDFInfo
- Publication number
- CN204004057U CN204004057U CN201420387439.XU CN201420387439U CN204004057U CN 204004057 U CN204004057 U CN 204004057U CN 201420387439 U CN201420387439 U CN 201420387439U CN 204004057 U CN204004057 U CN 204004057U
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- block
- hole
- pushing block
- spring
- steel ball
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Abstract
The utility model provides a kind of integrated form slide-block mechanism and synchronizer.Integrated form slide-block mechanism, comprise pushing block, positioning block, spring and steel ball, the bottom of pushing block offers the first horizontal through hole, the center of the first through hole bottom surface is provided with positioning hole, the cross section of positioning block is that T-shape and its underpart are embedded in positioning hole, the central axis on pushing block top is provided with the second through hole, the lower end of spring is butted on the end face of positioning block, the upper end of spring peaks at the bottom of steel ball and the top of steel ball exposes to the second through hole, the end face of pushing block is provided with guiding spline, pushing block top is provided with the connecting part of horizontal evagination, on the tooth hub of synchronizer, be provided with the draw-in groove matching with described connecting part.Integrated form slide-block mechanism can reduce the production process of synchromesh gear hub, without drilling spring eye, and guarantees steel ball, spring and positioning block difficult drop-off in synchronizer work, and the reliability and stability of synchronizer assembly promote greatly.This integrated form slide-block mechanism is particularly useful for the synchronizer assembly in light truck, heavy type lorry transmission-gear box.
Description
Technical field
The utility model belongs to automobile synchronizer field, especially relates to a kind of slide-block mechanism for automobile synchronizer.
Background technique
Along with automobile industry develop rapidly, part-synchronizer as core in gearbox, the height of its overall performance, directly affect the overall performance of gearbox, and the stability of slide-block mechanism and reliability directly affect quality and the life-span of synchronizer, current most slide-block mechanism is all distributing, as depicted in figs. 1 and 2: during assembling, first spring 004 is packed in the spring eye 005 of tooth hub 006, positioning block 003 is put into spring 004, pack steel ball 002 into, then pushing block 001 is put into pushing block groove 007, finally assemble tooth cover 008, operating process is complicated, steel ball easily comes off, be difficult for very much assembling, and, defective due to other parts in gearbox, can cause slide-block mechanism not use, finally cause gearbox normally not use.
Therefore, need the integrated form slide-block mechanism of the high and difficult dispersion of a kind of stability badly.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of integrated form slide-block mechanism and replaces traditional distributing slide-block mechanism, can guarantee the normal work of synchronizer, can under severe service condition, guarantee slide-block mechanism again in each parts stability and the reliability that connect.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of integrated form slide-block mechanism, comprise pushing block, positioning block, spring and steel ball, the bottom of described pushing block offers the first horizontal through hole, the bottom surface of described the first through hole is that the center of plane and bottom surface is provided with the positioning hole for stationary positioned piece, described positioning block is placed in described the first through hole, and the cross section of described positioning block is that T-shape and its underpart are embedded in described positioning hole;
The central axis on described pushing block top is provided with the second vertical through hole connecting with described the first through hole, the diameter of the aperture of described the second through hole and described spring and described steel ball matches, the lower end of described spring is passed described the second through hole and is butted on the end face of described positioning block, the upper end of described spring peaks at the bottom of described steel ball and the top of described steel ball exposes to described the second through hole, and the described steel ball of flexible drive of described spring moves up and down in described the second through hole;
The end face of described pushing block is provided with the guiding spline that is positioned at the described steel ball left and right sides.
The utility model also provides a kind of synchronizer, comprise tooth hub, be set in tooth hub periphery tooth cover, be arranged at lock ring and the integrated form slide-block mechanism as claimed in claim 1 of both sides before and after tooth hub, the excircle of described tooth hub is to being evenly equipped with the pushing block groove matching with described pushing block, on the inwall on described pushing block groove top, be provided with described pushing block on the draw-in groove that matches of connecting part, on the inner peripheral surface of described tooth cover, be evenly equipped with the locating slot matching with described steel ball.
Described spring and steel ball are integrated in the second through hole of described pushing block, described pushing block is positioned in the pushing block groove of synchromesh gear hub, under the effect of spring, steel ball upwards embeds in the locating slot on tooth cover inner peripheral surface, play neutral positioning action, during gearshift, tooth cover promotes described pushing block along the axial motion of synchronizer, in the time of in the breach before and after pushing block front/rear end snaps in tooth hub on the lock ring of side, completes gearshift.
Integrated form slide-block mechanism has guaranteed that the second through hole that steel ball and spring in shift process is arranged in pushing block does not disperse, and the vestibule of the second through hole limited the motion path of spring and steel ball, has guaranteed the smooth of shift process.
Wherein, in order to guarantee that pushing block is along the axial motion of synchronizer, on the left and right sidewall on described pushing block top, be provided with the connecting part of horizontal evagination, be provided with the draw-in groove that the connecting part with pushing block adapts on tooth hub, described pushing block can be along draw-in groove axial motion along tooth hub in pushing block groove.
Further, the hole depth of described positioning hole is not less than the length of the downward projection of described positioning block.
Further, in order to adapt to the synchronizers of different sizes,, in order to coordinate the tooth hub of different-diameter, the top of described positioning block is set to cylindric, and the thickness at its top and the height of described pushing block adapt.The tooth hub of different-diameter need be selected the pushing block of different heights, in the situation that not changing other parts, by changing the different positioning block of top thickness, can guarantee the active force of spring to steel ball.
Further, in order better to avoid spring to bend in extrusion process, guarantee that its elasticity is along the central axis direction of described pushing block, the center of the end face of described positioning block is provided with the positioning shaft to upper process, and described positioning shaft plugs the inner chamber into spring from the lower end of described spring.
Advantage and the good effect that the utlity model has are: integrated form slide-block mechanism can reduce the production process of synchromesh gear hub, without drilling spring eye, and steel ball, spring and positioning block are positioned at the second through hole and first through hole at pushing block middle part, guarantee its difficult drop-off in synchronizer work, the reliability and stability of synchronizer assembly promote greatly; The assembling of slide-block mechanism is simple, can reduce labor intensity, and manufacturing efficiency improves.This integrated form slide-block mechanism is particularly useful for the synchronizer assembly in light truck, heavy type lorry transmission-gear box.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing slide-block mechanism
Fig. 2 is the working state schematic representation of existing slide-block mechanism
Fig. 3 is that master of the present utility model looks schematic diagram
Fig. 4 is schematic perspective view of the present utility model
Fig. 5 is the sectional view of the utility model A-A direction
Fig. 6 is the assembling schematic diagram of integrated form slide-block mechanism in tooth hub and Fig. 4 in synchronizer of the present utility model
In figure: 1-pushing block, 2-positioning block, 21-positioning shaft, 3-spring, 4-steel ball, 5-the second through hole, 6-positioning hole, the 7-spline that leads, 8-side's strip projected parts, 9-the first through hole
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Fig. 3～5, this integrated form slide-block mechanism, comprise pushing block 1, positioning block 2, spring 3 and steel ball 4, the bottom of pushing block 1 offers the first horizontal through hole 9, the bottom surface of the first through hole 9 is that the center of plane and bottom surface is provided with the positioning hole 6 for stationary positioned piece 2, positioning block 2 is placed in the first through hole 9, and the cross section of positioning block 2 is that T-shape and its underpart are embedded in positioning hole 6.
The central axis on pushing block 1 top is provided with the second vertical through hole 5 connecting with the first through hole 9, the diameter of the aperture of the second through hole and spring 3 and steel ball 4 matches, the lower end of spring 3 is passed the second through hole 5 and is butted on the end face of positioning block 2, the upper end of spring 3 peaks at the bottom of steel ball 4 and the top of steel ball 4 exposes to the second through hole 5, and the flexible drive steel ball 4 of spring 3 moves up and down in the second through hole 5.
The end face of pushing block 1 is provided with the guiding spline 7 that is positioned at steel ball 4 left and right sides, on the left and right sidewall on pushing block 1 top, be provided with the connecting part of horizontal evagination, as long as described connecting part can be stuck in pushing block 1 in the pushing block groove of tooth hub, anti-thrust block 1 is deviate from along the radially outward of tooth hub, and the embodiment that the utility model provides is: connecting part be set to be arranged above and below and with wide two the square strip projected parts 8 of pushing block 1.
Synchronizer as shown in Figure 6, comprise tooth hub, be set in tooth hub periphery tooth cover, be arranged at lock ring and the integrated form slide-block mechanism as claimed in claim 1 of both sides before and after tooth hub, the excircle of described tooth hub is to being evenly equipped with the pushing block groove matching with described pushing block 1, on the inwall on described pushing block groove top, be provided with described pushing block 1 on the draw-in groove that matches of connecting part, on the inner peripheral surface of described tooth cover, be evenly equipped with the locating slot matching with described steel ball 4, pushing block 1 can slide in the pushing block groove on tooth hub along draw-in groove.
Spring 3 withstands steel ball 4 makes it expose to the second through hole 5 and top higher than the end face of guiding spline 7, if being damaged, other parts of synchronizer assembly cause tooth cover and tooth hub to depart from, the elastic force of spring 3 only may eject steel ball 4, itself and positioning block 2 are still integrated in pushing block 1, can not be scattered, reduce the difficulty of ressembling.
As shown in Figure 3, in order to adapt to the synchronizer of different sizes,, in order to coordinate the tooth hub of different-diameter, the top of positioning block 2 is set to cylindric, and the height of the thickness at its top and pushing block 1 adapts.The tooth hub of different-diameter need be selected the pushing block 1 of different heights, in the situation that not changing other parts, can guarantee the active force of 3 pairs of steel balls 4 of spring by changing the different positioning block 2 of top thickness.
As shown in Figure 5, in order better to avoid spring 3 to bend in extrusion process, guarantee that its elasticity is along the central axis direction of pushing block 1, the center of the end face of positioning block 2 is provided with the positioning shaft 21 to upper process, and positioning shaft 21 plugs the inner chamber into spring 3 from the lower end of spring 3.
During assembling, positioning block 2 is put into the positioning hole 6 of pushing block 1 by the first through hole 9, spring 3 packs into from the top of the second through hole 5, the lower end of spring 3 is contacted with the end face of positioning block 2, then steel ball 4 is put into the port of spring 3 upper ends, then the connecting part of the both sides of pushing block 1 is stuck in the draw-in groove on tooth hub, finally assembles tooth cover.Spring 3 and steel ball 4 are integrated in the second through hole 5 of pushing block 1, pushing block 1 is positioned in the pushing block groove of synchromesh gear hub, under the effect of spring 3, steel ball 4 upwards embeds in the corresponding locating slot of tooth cover inner ring, play neutral positioning action, during gearshift, guiding spline 7 on pushing block 1 limits tooth cover and promotes pushing block 1 along the axial motion of synchronizer, in the time of in the breach before and after pushing block 1 front/rear end snaps in tooth hub on the lock ring of side, completes gearshift.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (6)
1. an integrated form slide-block mechanism, comprise pushing block (1), positioning block (2), spring (3) and steel ball (4), it is characterized in that: the bottom of described pushing block (1) offers horizontal the first through hole (9), the bottom surface of described the first through hole (9) is that the center of plane and bottom surface is provided with the positioning hole (6) for stationary positioned piece (2), described positioning block (2) is placed in described the first through hole (9), and its cross section is that T-shape and its underpart are embedded in described positioning hole (6);
The central axis on described pushing block (1) top is provided with vertical the second through hole (5) connecting with described the first through hole (9), the diameter of the aperture of described the second through hole and described spring and described steel ball matches, the lower end of described spring (3) is passed described the second through hole and is butted on the end face of described positioning block (2), the upper end of described spring (3) peaks at the bottom of described steel ball (4) and the top of described steel ball (4) exposes to described the second through hole (5), and the described steel ball of flexible drive (4) of described spring (3) moves up and down in described the second through hole (5);
The end face of described pushing block (1) is provided with the guiding spline (6) that is positioned at described steel ball (4) left and right sides;
On the left and right sidewall on described pushing block (1) top, be provided with the connecting part of horizontal evagination.
2. integrated form slide-block mechanism according to claim 1, is characterized in that: described connecting part for be arranged above and below and with wide two the square strip projected parts (8) of described pushing block (1).
3. integrated form slide-block mechanism according to claim 1, is characterized in that: the hole depth of described positioning hole (6) is not less than described positioning block (2) length of projection downwards.
4. integrated form slide-block mechanism according to claim 1, is characterized in that: the top of described positioning block (2) is set to cylindric, and the height of the thickness at its top and described pushing block (1) adapts.
5. integrated form slide-block mechanism according to claim 1, it is characterized in that: the center of the end face of described positioning block (2) is provided with the positioning shaft (21) to upper process, and described positioning shaft (21) plugs the inner chamber into spring (3) from the lower end of described spring (3).
6. one kind comprises the synchronizer of integrated form slide-block mechanism as claimed in claim 1, comprise tooth hub, be set in the tooth cover of tooth hub periphery and be arranged at the lock ring of both sides before and after tooth hub, it is characterized in that: also comprise integrated form slide-block mechanism, the excircle of described tooth hub is to being evenly equipped with the pushing block groove matching with described pushing block (1), on the inwall on described pushing block groove top, be provided with described pushing block (1) on the draw-in groove that matches of connecting part, on the inner peripheral surface of described tooth cover, be evenly equipped with the locating slot matching with described steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387439.XU CN204004057U (en) | 2014-07-14 | 2014-07-14 | A kind of integrated form slide-block mechanism and synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387439.XU CN204004057U (en) | 2014-07-14 | 2014-07-14 | A kind of integrated form slide-block mechanism and synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004057U true CN204004057U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420387439.XU Withdrawn - After Issue CN204004057U (en) | 2014-07-14 | 2014-07-14 | A kind of integrated form slide-block mechanism and synchronizer |
Country Status (1)
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| CN (1) | CN204004057U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121298A (en) * | 2014-07-14 | 2014-10-29 | 天津天海同步科技股份有限公司 | Integrated sliding block mechanism and synchronizer |
| CN105387820A (en) * | 2015-11-01 | 2016-03-09 | 中北大学 | Circumferential positioning laser deep hole straightness detection device |
| CN106337885A (en) * | 2015-07-13 | 2017-01-18 | 上汽通用汽车有限公司 | Off-gear preventing self-lock pin for synchronizer of manual transmission |
| CN108194531A (en) * | 2018-02-11 | 2018-06-22 | 十堰同创传动技术有限公司 | Buckle-type synchronizer composite slider |
| CN108253036A (en) * | 2018-02-11 | 2018-07-06 | 十堰同创传动技术有限公司 | Jack catchs type synchronizer composite slider |
-
2014
- 2014-07-14 CN CN201420387439.XU patent/CN204004057U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121298A (en) * | 2014-07-14 | 2014-10-29 | 天津天海同步科技股份有限公司 | Integrated sliding block mechanism and synchronizer |
| CN104121298B (en) * | 2014-07-14 | 2016-05-04 | 天津天海同步科技股份有限公司 | A kind of integrated form slide block mechanism and synchronized |
| CN106337885A (en) * | 2015-07-13 | 2017-01-18 | 上汽通用汽车有限公司 | Off-gear preventing self-lock pin for synchronizer of manual transmission |
| CN105387820A (en) * | 2015-11-01 | 2016-03-09 | 中北大学 | Circumferential positioning laser deep hole straightness detection device |
| CN105387820B (en) * | 2015-11-01 | 2018-02-16 | 中北大学 | Circumferential registration laser Deep Hole Straightness Test Device |
| CN108194531A (en) * | 2018-02-11 | 2018-06-22 | 十堰同创传动技术有限公司 | Buckle-type synchronizer composite slider |
| CN108253036A (en) * | 2018-02-11 | 2018-07-06 | 十堰同创传动技术有限公司 | Jack catchs type synchronizer composite slider |
| CN108194531B (en) * | 2018-02-11 | 2023-06-16 | 十堰同创传动技术有限公司 | Buckle type synchronizer combined sliding block |
| CN108253036B (en) * | 2018-02-11 | 2023-06-16 | 十堰同创传动技术有限公司 | Jaw synchronizer combined sliding block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |