CN111288092A - Lock ring type inertia synchronizer - Google Patents
Lock ring type inertia synchronizer Download PDFInfo
- Publication number
- CN111288092A CN111288092A CN202010200314.1A CN202010200314A CN111288092A CN 111288092 A CN111288092 A CN 111288092A CN 202010200314 A CN202010200314 A CN 202010200314A CN 111288092 A CN111288092 A CN 111288092A
- Authority
- CN
- China
- Prior art keywords
- synchronizer
- ring
- gear
- limiting
- friction ring
- 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.)
- Pending
Links
- 230000007935 neutral effect Effects 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/025—Synchro rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention belongs to a synchronizer structure, and provides a lock ring type inertia synchronizer for solving the technical problems that the existing synchronizer is large in part quantity, not beneficial to part light weight, insufficient in overall reliability and low in limiting structure processing efficiency and easy to damage; spring hook clamping grooves for mounting an open annular spring are formed in the two sides of the tooth bottom of the external tooth of the synchronizer gear hub; the outer friction ring, the middle conical ring and the inner friction ring are sequentially sleeved from outside to inside and symmetrically arranged on two sides of the synchronizer gear hub, and two adjacent contact surfaces are in conical surface fit; when the synchronizer is in a neutral gear state, the synchronizer sliding sleeve is sleeved outside the synchronizer gear hub, and the gear engaging limiting table is positioned between the two opening annular springs; when the synchronizer is in a gear engaging state, the outer end face of the gear engaging limiting table of the synchronizer sliding sleeve is abutted against the end face of the combining gear of the synchronizer combining gear ring.
Description
Technical Field
The invention belongs to a synchronizer structure, and particularly relates to a lock ring type inertia synchronizer.
Background
Referring to fig. 1 and 4, a common lock ring type inertia synchronizer limited by sliding sleeve connecting teeth is adopted, a compression spring 05 is adopted as an elastic element, when gear shifting is needed, the synchronizer sliding sleeve 01 is moved along the axial direction of the synchronizer sliding sleeve 01 through a shifting fork, downward axial force is applied to a top pin 09, the top pin 09 moves downward under the elastic action of the compression spring 05, and finally, the internal teeth of the synchronizer sliding sleeve 01 are simultaneously meshed with a synchronizer gear hub 06, an external friction ring 02 and a synchronizer combined gear ring 07 according to the basic principle that the synchronizer finishes gear shifting.
Fig. 2 is a schematic structural view of another limit mode lock ring type inertia synchronizer in a neutral gear, the working principle is consistent with the foregoing, and only the limit is changed to be completed by combining a limit boss arranged on a gear ring.
The above-mentioned synchronizers all have the following problems: (1) as shown in fig. 3, the synchronizer hub 06 is circumferentially provided with 6 notches 061 and 3 counterbores 062 for mounting the bosses of the outer friction ring 02 and the inner friction ring 04, as well as the slider 08, the compression spring 05, and the pin 09. The outer friction ring 02, the middle conical ring 03 and the inner friction ring 04 are in sleeved fit, the synchronizer sliding block 08, the compression spring 05 and the pin 09 need to be assembled, the overall structure is complex, the number of parts is large, the manufacturing cost is high, and the assembly difficulty is large; (2) the compression spring 05 needs to be installed in the middle of the synchronizer hub 06, and the wall thickness of the synchronizer hub 06 needs not to be too thin, so that the light weight of parts is not facilitated; (3) the periphery of the synchronizer gear hub 06 needs to be provided with a plurality of notches, so that the strength and rigidity of the synchronizer gear hub are reduced, and the overall reliability of the synchronizer is influenced; (4) the limiting modes are all insufficient: the sliding sleeve is limited by the connecting teeth, the sliding sleeve has poor processing manufacturability, cannot adopt a spline drawing process with higher efficiency, only can use a spline inserting process, and has lower processing efficiency; the limit mode that the limit boss is arranged on the synchronizer coupling gear ring 07 is very easy to quench the limit boss on the synchronizer coupling gear ring 07 completely when the synchronizer coupling gear ring 07 is quenched, the limit boss is easily brittle and broken in the using process, and the axial installation size of the synchronizer can be increased.
Disclosure of Invention
The invention mainly aims to solve the technical problems that the existing synchronizer is large in number of parts, not beneficial to light weight of the parts, insufficient in overall reliability, low in machining efficiency of a limiting structure and easy to damage, and provides a lock ring type inertia synchronizer.
In order to achieve the purpose, the invention provides the following technical scheme:
a lock ring type inertia synchronizer is characterized by comprising a synchronizer sliding sleeve, an outer friction ring, a middle conical ring, an inner friction ring, an opening annular spring and a synchronizer gear hub;
a gear engaging limiting table is arranged in the middle of the tooth top of the inner teeth of the sliding sleeve of the synchronizer;
spring hook clamping grooves are formed in the two sides of the tooth bottom of the external teeth of the synchronizer gear hub; the opening ring-shaped spring is clamped in the spring hook clamping groove, and the hook shape can prevent the spring from being separated. The synchronizer spring bears the pretightening force applied to the outer diameter of the synchronizer gear hub clamping groove, and the inner diameter of the opening annular spring in a prepressing state is smaller than the small diameter of the gear engaging limiting table of the synchronizer sliding sleeve;
the outer friction ring, the middle conical ring and the inner friction ring are sequentially sleeved from outside to inside and symmetrically arranged on two sides of the synchronizer gear hub; two adjacent contact surfaces of the outer friction ring, the middle conical ring and the inner friction ring are in conical surface fit, and a synchronizer combination gear ring is further arranged on the outer side of the outer friction ring, the middle conical ring and the inner friction ring;
a plurality of first limiting bosses and a plurality of second limiting bosses are respectively arranged on the end surfaces, facing the synchronizer gear hub, of the outer friction ring and the inner friction ring along the circumferential direction; the first limiting boss and the second limiting boss are jointly arranged in a friction ring limiting groove formed in the synchronizer gear hub;
a plurality of third limiting bosses are arranged on the end surface of the middle conical ring facing the synchronizer coupling gear ring along the circumferential direction, and the third limiting bosses are arranged in through holes which are formed in the end surface of the synchronizer coupling gear ring along the circumferential direction;
when the synchronizer is in a neutral gear state, the synchronizer sliding sleeve is sleeved outside the synchronizer gear hub, and the gear engaging limiting table of the synchronizer sliding sleeve is positioned between the two open annular springs; when the synchronizer is in a gear engaging state, the outer end face of a gear engaging limit platform of the synchronizer sliding sleeve abuts against the end face of the combining gear of the synchronizer combining gear ring, and the inner teeth of the synchronizer sliding sleeve are simultaneously meshed with the combining gear of the synchronizer combining gear ring, the outer teeth of the outer friction ring and the outer teeth of the synchronizer gear hub.
Further, in order to enhance the strength and rigidity of the synchronizer hub and the synchronizer as a whole, the outer annular surface of the synchronizer hub is continuously and uniformly arranged.
Furthermore, the first limiting bosses and the second limiting bosses which are arranged on the outer friction ring and the inner friction ring on two sides of the synchronizer gear hub are installed in the friction ring limiting grooves of the synchronizer gear hub in a staggered mode, and the axial length of the synchronizer gear hub is effectively reduced.
Furthermore, in order to simplify the structural complexity and the process difficulty, the gear engaging limiting table is heightened spline teeth arranged in the middle of the tooth tops of the internal teeth of the sliding sleeves of the synchronizers.
Further, the first limiting boss on the outer friction ring is an inward-bent L-shaped boss.
Furthermore, the number of the first limiting bosses and the number of the second limiting bosses are 3; the number of the third limiting bosses is 6.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a lock ring type inertia synchronizer, which adopts a form that a gear engaging limit table is arranged in the middle of a synchronizer sliding sleeve and is matched with opening ring-shaped springs arranged at two sides of a synchronizer gear hub, and replaces a neutral gear positioning form that a sliding block, a top pin, a compression spring and a neutral gear limit groove on the synchronizer sliding sleeve are combined in a conventional synchronizer, the improved double-conical-surface lock ring type inertia synchronizer only needs 12 parts in total of 7, while the double-conical-surface lock ring type inertia synchronizer of the existing structure needs 19 parts in total of 9, so that the number of the parts is obviously reduced, the manufacturing and assembling processes can be greatly simplified, and the production cost is effectively saved.
The synchronizer gear hub is not required to be provided with a mounting hole for mounting a compression spring, so that the mounting reliability is ensured, meanwhile, the thickness of the middle part of the synchronizer gear hub can be effectively reduced, the integral weight of parts and the synchronizer is reduced, and the axial size of the synchronizer can also be reduced.
The limiting structure in the synchronizer is characterized in that the gear engaging limiting table is arranged in the middle of the inner teeth of the sliding sleeve of the synchronizer, and compared with a limiting mode of adopting the sliding sleeve of the synchronizer to connect the teeth for limiting and arranging the limiting boss on the combining gear ring of the synchronizer, the limiting structure avoids the risk that the limiting boss is easily brittle and broken in the using process, and can be manufactured by adopting a machining process with higher efficiency.
The synchronizer is of a sliding block-free structure, a sliding sleeve and gear connecting limiting mode is not adopted, partial spline teeth do not need to be removed from a sliding sleeve and an outer friction ring of the synchronizer, the number of locking teeth on the sliding sleeve and the outer friction ring of the synchronizer is the full number of the splines, the total number and the total area of the locking surfaces are larger, and the locking is more reliable.
2. Compared with the prior synchronizer gear hub, the outer side surface of the synchronizer gear hub is a non-notch continuous circumferential surface, and the friction ring limiting groove is formed in the middle of the end surface of the synchronizer gear hub, so that the phenomenon that the notch is formed in the periphery of the synchronizer gear hub is avoided, and the strength and the rigidity of the synchronizer gear hub can be effectively improved.
3. According to the synchronizer gear hub, the first limiting bosses and the second limiting bosses on the two sides of the synchronizer gear hub are arranged in the friction ring limiting grooves in a staggered mode, when the synchronizer works, the first limiting bosses and the second limiting bosses on the two sides cannot interfere with each other, the thickness requirement of the middle of the synchronizer gear hub can be further reduced due to the staggered arrangement, the overall weight of parts and the synchronizer can be further reduced, and the axial size of the synchronizer can also be reduced.
4. The gear engaging limiting platform is a heightened spline, so that the synchronizer sliding sleeve can be machined and manufactured by adopting a spline machining process during machining.
Drawings
FIG. 1 is a schematic structural diagram of a double-conical-surface lock ring type inertia synchronizer limited by sliding sleeve and connecting teeth in the prior art;
FIG. 2 is a schematic structural view of a double-conical-surface lock-ring type inertia synchronizer adopting a combined gear ring limiting boss in the prior art;
FIG. 3 is a schematic structural diagram of a synchronizer hub in the prior art;
fig. 4 is a schematic structural diagram of an outer friction ring in the background art.
Wherein, in fig. 1 to 4:
01-synchronizer sliding sleeve, 02-outer friction ring, 03-middle conical ring, 04-inner friction ring, 05-compression spring, 06-synchronizer gear hub, 061-notch, 062-counter bore, 07-synchronizer combination gear ring, 08-sliding block and 09-top pin.
FIG. 5 is a schematic structural diagram of an embodiment of a lock ring type inertia synchronizer according to the present invention;
FIG. 6 is a cross-sectional view C-C of FIG. 5;
FIG. 7 is an exploded view of FIG. 5;
FIG. 8 is a schematic structural view of a synchronizer hub according to an embodiment of the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 8;
FIG. 10 is a schematic structural view of an outer friction ring in an embodiment of the present invention;
FIG. 11 is a schematic structural view of a sliding sleeve of the synchronizer according to the embodiment of the present invention;
FIG. 12 is a schematic structural view illustrating a neutral state of the ring-locked inertia synchronizer according to an embodiment of the present invention;
FIG. 13 is a schematic structural diagram illustrating a locked-ring inertia synchronizer in a gear engaged state according to an embodiment of the present invention.
Wherein, in fig. 5 to 13:
1-synchronizer sliding sleeve, 11-gear engaging limit table, 2-outer friction ring, 21-first limit boss, 3-middle cone ring, 31-third limit boss, 4-inner friction ring, 41-second limit boss, 5-opening ring spring, 6-synchronizer gear hub, 61-spring hook clamping groove, 62-friction ring limit groove, 7-synchronizer combination gear ring and 71-through hole.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings, and it is obvious that the described embodiments do not limit the present invention.
The invention provides a lock ring type inertia synchronizer with a new structure, which adopts split ring-shaped springs 5 as elastic elements, wherein the two split ring-shaped springs 5 are respectively arranged in spring hook clamping grooves 61 at two sides of a synchronizer gear hub 6, and the middle part of a synchronizer sliding sleeve 1 is provided with a gear engaging limit table 11. During neutral, the opening ring-shaped spring 5 is positioned at two sides of the gear engaging limit table 11 of the synchronizer sliding sleeve 1, and the opening ring-shaped spring 5 only bears the installation pre-tightening force of the spring hook clamping groove 61 on the synchronizer gear hub 6. When the synchronizer is in gear, the synchronizer sliding sleeve 1 axially moves towards the gear engaging side, and the gear engaging limit platform 11 of the synchronizer sliding sleeve 1 is abutted against the opening annular spring 5 to prevent the synchronizer sliding sleeve 1 from axially moving. The synchronizer sliding sleeve 1 needs to overcome the tension of the opening annular spring 5, the opening annular spring 5 is extruded to reduce the outer diameter of the synchronizer sliding sleeve, and the gear can be shifted until the gear engaging limiting table 11 of the synchronizer sliding sleeve 1 goes up the opening annular spring 5 on the gear engaging side, so that the neutral gear positioning function is realized. The synchronizer structure provided by the invention cancels a sliding block, a top pin and a compression spring in the traditional lock ring type inertia synchronizer, and a neutral gear positioning groove is not required to be processed on the synchronizer sliding sleeve 1 any more, so that the number of parts is greatly reduced, the assembly of each part is more convenient, and the processing and assembly processes of the synchronizer are greatly simplified.
The following is an embodiment of the present invention, specifically illustrating the connection relationship and the working principle:
referring to fig. 5 to 7, the inertia synchronizer of the lock ring type comprises a synchronizer sliding sleeve 1, an outer friction ring 2, an intermediate cone ring 3, an inner friction ring 4, a split ring spring 5, a synchronizer gear hub 6 and a synchronizer gear ring 7.
As shown in fig. 11, the spline teeth 11 that increase relative to the tooth top are arranged in the middle of the internal tooth top of the synchronizer sliding sleeve 1, and as the gear engaging limit table 11, when the gear engaging limit table 11 is axially moved and engaged in the synchronizer sliding sleeve 1, the spline teeth with normal tooth heights on two sides of the sliding sleeve are engaged with the spline teeth on the combined gear ring 7, the spline teeth that increase in the middle of the sliding sleeve abut against the end face of the combined gear ring, and the combined teeth of the synchronizer combined gear ring 7 cannot be engaged, so that the sliding sleeve is prevented from continuously axially moving in the gear engaging direction, and the gear engaging limit function is realized.
As shown in fig. 8 and 9, spring hook clamping grooves 61 are formed in both sides of the tooth bottom of the external teeth of the synchronizer gear hub 6, and are used for installing the split ring-shaped spring 5 and preventing the split ring-shaped spring 5 from being disengaged, and the inner diameter of the split ring-shaped spring 5 is smaller than the small diameter of the gear engaging limit table 11 of the synchronizer sleeve 1. As a preferred scheme, the outer side surface of the synchronizer gear hub 6 is a continuous circumferential surface, the friction ring limiting groove 62 is formed in the middle of the end face of the synchronizer gear hub 6, and compared with the existing synchronizer gear hub 6 with grooves formed in the outer periphery, the synchronizer gear hub 6 is effectively improved in strength and rigidity, and therefore the structural strength and reliability of the whole synchronizer are improved. After the components are assembled, when the synchronizer is in a neutral gear, the synchronizer sliding sleeve 1 is sleeved outside the synchronizer gear hub 6, and the gear engaging limiting table 11 is located in the middle of the synchronizer and located between the two opening annular springs 5 on the two sides of the synchronizer gear hub 6.
The outer friction ring 2, the middle conical ring 3 and the inner friction ring 4 are sequentially sleeved from outside to inside, the inner surface and the outer surface of the middle conical ring 3 are conical surfaces, the outer surface of the inner friction ring 4 is a conical surface, the inner surface of the outer friction ring 2 is a conical surface, and two adjacent contact surfaces are matched with each other in a conical surface mode after the outer friction ring 2, the middle conical ring 3 and the inner friction ring 4 are sleeved. The two sides of the synchronizer gear hub 6 are symmetrically provided with an outer friction ring 2, a middle conical ring 3 and an inner friction ring 4, and the outer friction ring 2, the middle conical ring 3 and the inner friction ring 4 which are positioned on the two sides of the synchronizer gear hub 6 are identical in installation structure.
As shown in fig. 7 and 10, the end surfaces of the outer friction ring 2 and the inner friction ring 4 facing the synchronizer hub 6 are respectively provided with a first limiting boss 21 and a second limiting boss 41 along the circumferential direction, the first limiting boss 21 and the second limiting boss 41 are both installed in a friction ring limiting groove 62 on the synchronizer hub 6, the first limiting bosses 21 of the outer friction ring 2 and the second limiting bosses 41 of the inner friction ring 4 installed at both sides of the synchronizer hub 6 are installed in the friction ring limiting groove 62 in an interlaced manner, i.e. only one first limiting boss 21 and one second limiting boss 41 at one side of the synchronizer hub 6 are installed in one friction ring limiting groove 62, since the first limiting bosses 21 and one second limiting boss 41 at both sides of the synchronizer hub 6 in the friction ring limiting groove 62 cannot interfere with each other, the interlaced installation can effectively reduce the thickness of the middle part of the synchronizer hub 6, thereby reducing the weight of the part, contributing to a reduction in the axial dimension of the synchronizer. Wherein, the first limit boss 21 can be designed as an L-shaped boss bent inward so as to be matched with the side wall of the friction ring limit groove 62 on the synchronizer hub 6, and the boss strength is higher.
As shown in fig. 10, compared with the existing outer friction ring 02 shown in fig. 4, because the limiting mode and the elastic element are changed, the outer friction ring 2 does not need to remove part of spline teeth, the number of the locking teeth outside the outer friction ring 2 is the full number of the spline teeth, the total number and the area of the locking surfaces are larger, and the locking is more reliable.
A plurality of through holes 71 are formed in the end face of the synchronizer combination gear ring 7 along the circumferential direction, a plurality of third limiting bosses 31 are arranged on the end face of the middle cone ring 3 facing the synchronizer combination gear ring 7 along the circumferential direction, after the synchronizer is assembled, the third limiting bosses 31 are installed in the through holes 71, and the installation structures of the synchronizer combination gear rings 7 on the two sides of the synchronizer gear hub 6 are the same.
The number of the first limiting bosses 21 and the number of the second limiting bosses 41 are 3, and the number of the third limiting bosses 31 is 6. Correspondingly, the number of the through holes 71 on the end surface of the synchronizer coupling gear ring 7 is the same as that of the third limiting bosses 31, and is 6; the number of the friction ring limiting grooves 62 on the end face of the synchronizer hub 6 is 6, and the number of the first limiting bosses 21 of the outer friction ring 2 and the number of the second limiting bosses 41 of the inner friction ring 4 on the two sides of the synchronizer hub 6 are respectively 3.
As shown in fig. 12, when the synchronizer is in the neutral position, the synchronizer sleeve 1 is in the center position of the synchronizer, the internal teeth of the synchronizer sleeve 1 are matched with the external teeth of the synchronizer hub 6, the gear engaging limit table 11 on the internal teeth of the synchronizer sleeve 1 is located between the two open ring springs 5, and the open ring springs 5 bear the pre-tightening force applied by the spring hook clamping groove 61 on the synchronizer hub 6 to the outer diameter of the open ring springs 5, so as to be in a pre-pressing state. The inner diameters of the two opening ring-shaped springs 5 are smaller than the small diameter of the gear engaging limit table 11 of the synchronizer sliding sleeve 1, so that the synchronizer sliding sleeve 1 can be prevented from moving axially, and a neutral gear positioning function is realized.
As shown in fig. 13, when the synchronizer is in gear, the synchronizer sleeve 1 is pushed by the shift fork to move axially toward the gear engaging side, and the end face of the gear engaging limit stop 11 on the internal teeth of the synchronizer sleeve 1 abuts against the open ring spring 5 to prevent the synchronizer sleeve 1 from moving. Under the continuous thrust of the shift fork of shifting, the terminal surface of the spacing platform 11 of putting into gear on the 1 internal tooth of synchronous ware sliding sleeve constantly extrudes the opening annular spring 5 of the side of putting into gear, and opening annular spring 5 external diameter reduces, and the spacing platform 11 of putting into gear of synchronous ware sliding sleeve 1 overcomes opening annular spring tension, goes up opening annular spring 5 more, continues axial displacement. The end face of the synchronizer sliding sleeve 1 is in contact with the outer friction ring 2, the adjacent matching conical surfaces of the outer friction ring 2, the middle conical ring 3 and the inner friction ring 4 are in contact to generate friction torque, the outer friction ring 2 rotates by a quarter of a circle, the end face of the inner teeth of the synchronizer sliding sleeve 1 is in contact with the tooth end locking face outside the outer friction ring 2, and the synchronizer enters a locking state. At the moment, the shifting fork continuously applies axial force to the synchronizer sliding sleeve 1, the positive pressure transmitted to the friction conical surfaces of the outer friction ring 2, the middle conical ring 3 and the inner friction ring 4 by the synchronizer sliding sleeve 1 is continuously increased, so that the angular speeds of two adjacent friction surfaces of the friction pair in the sliding and grinding process are gradually close, and finally, the rotating speed difference among the synchronizer sliding sleeve 1, the outer friction ring 2, the middle conical ring 3, the inner friction ring 4 and the synchronizer combined gear ring 7 disappears, and synchronization is realized. At the moment, the outer friction ring 2 reverses an angle and returns to the right, the locking surface on the synchronizer sliding sleeve 1 and the outer friction ring 2 is separated from contact, the synchronizer sliding sleeve 1 slides through the outer friction ring 2 under the pushing of the shifting fork to be combined with the synchronizer combination gear ring 7 to complete gear engagement, the inner teeth of the synchronizer sliding sleeve 1 are simultaneously matched with the synchronizer combination gear ring 7, the outer friction ring 2 and the synchronizer gear hub 6, the end face of the gear engagement limiting table 11 on the synchronizer sliding sleeve 1 abuts against the end face of the combination gear ring 7 combination gear, and the gear engagement limiting function is achieved.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A lock ring type inertia synchronizer is characterized in that: the synchronizer comprises a synchronizer sliding sleeve (1), an outer friction ring (2), a middle conical ring (3), an inner friction ring (4), an opening annular spring (5) and a synchronizer gear hub (6);
the middle part of the tooth top of the inner teeth of the synchronizer sliding sleeve (1) is provided with a gear engaging limiting table (11); the synchronizer sliding sleeve (1) is sleeved outside the synchronizer gear hub (6), and a gear engaging limiting table (11) of the synchronizer sliding sleeve (1) is positioned between the two open annular springs (5);
spring hook clamping grooves (61) are formed in the two sides of the tooth bottom of the outer teeth of the synchronizer gear hub (6); the opening ring-shaped spring (5) is clamped in the spring hook clamping groove (61), and the inner diameter of the opening ring-shaped spring (5) is smaller than the small diameter of the gear engaging limiting table (11) of the synchronizer sliding sleeve (1);
the outer friction ring (2), the middle conical ring (3) and the inner friction ring (4) are sequentially sleeved from outside to inside and symmetrically arranged on two sides of the synchronizer gear hub (6); two adjacent contact surfaces of the outer friction ring (2), the middle conical ring (3) and the inner friction ring (4) are in conical surface fit, and a synchronizer combined gear ring (7) is further arranged on the outer side of the outer friction ring;
a plurality of first limiting bosses (21) and second limiting bosses (41) are respectively arranged on the end surfaces, facing the synchronizer gear hub (6), of the outer friction ring (2) and the inner friction ring (4) along the circumferential direction; the first limiting boss (21) and the second limiting boss (41) are jointly arranged in a friction ring limiting groove (62) formed in the synchronizer gear hub (6);
the end face, facing the synchronizer combined gear ring (7), of the middle conical ring (3) is provided with a plurality of third limiting bosses (31) along the circumferential direction, and the third limiting bosses (31) are arranged in through holes (71) formed in the end face of the synchronizer combined gear ring (7) along the circumferential direction.
2. The lock-ring inertial synchronizer of claim 1, wherein: the outer ring surface of the synchronizer gear hub (6) is continuously and uniformly arranged.
3. The lock-ring inertial synchronizer of claim 2, wherein: the first limiting bosses (21) and the second limiting bosses (41) arranged on the outer friction ring (2) and the inner friction ring (4) on two sides of the synchronizer gear hub (6) are installed in friction ring limiting grooves (62) of the synchronizer gear hub (6) in a staggered mode.
4. A lock-ring inertial synchronizer according to claim 1, 2 or 3, characterized in that: the gear engaging limiting table (11) is heightened spline teeth arranged in the middle of the tooth tops of the inner teeth of the synchronizer sliding sleeve (1).
5. The lock-ring inertial synchronizer of claim 4, wherein: the first limiting boss (21) is an L-shaped boss bent inwards.
6. The lock-ring inertial synchronizer of claim 5, wherein: the number of the first limiting bosses (21) and the number of the second limiting bosses (41) are 3; the number of the third limiting bosses (31) is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200314.1A CN111288092A (en) | 2020-03-20 | 2020-03-20 | Lock ring type inertia synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200314.1A CN111288092A (en) | 2020-03-20 | 2020-03-20 | Lock ring type inertia synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111288092A true CN111288092A (en) | 2020-06-16 |
Family
ID=71022606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010200314.1A Pending CN111288092A (en) | 2020-03-20 | 2020-03-20 | Lock ring type inertia synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111288092A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795079A (en) * | 2020-06-24 | 2020-10-20 | 陕西法士特汽车传动集团有限责任公司 | Large-capacity embedded conical surface synchronizer and transmission |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468346A (en) * | 2000-10-18 | 2004-01-14 | ��֪��е��ҵ��ʽ���� | Synchronizing spring and synchronizing mechanism |
| JP2005024041A (en) * | 2003-07-04 | 2005-01-27 | Aisin Ai Co Ltd | Lubricating device of synchronous transmission mechanism |
| JP2010242886A (en) * | 2009-04-07 | 2010-10-28 | Toyota Motor Corp | Synchronizer |
| JP2012122578A (en) * | 2010-12-10 | 2012-06-28 | Honda Motor Co Ltd | Transmission synchronization device |
| CN207131755U (en) * | 2017-08-28 | 2018-03-23 | 陕西法士特汽车传动集团有限责任公司 | A kind of C-spring lock ring type synchronized |
| CN208587418U (en) * | 2018-06-26 | 2019-03-08 | 陕西法士特汽车传动集团有限责任公司 | A kind of synchronizer is put into gear position-limit mechanism |
| CN212131110U (en) * | 2020-03-20 | 2020-12-11 | 陕西法士特汽车传动集团有限责任公司 | Lock ring type inertia synchronizer |
-
2020
- 2020-03-20 CN CN202010200314.1A patent/CN111288092A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468346A (en) * | 2000-10-18 | 2004-01-14 | ��֪��е��ҵ��ʽ���� | Synchronizing spring and synchronizing mechanism |
| JP2005024041A (en) * | 2003-07-04 | 2005-01-27 | Aisin Ai Co Ltd | Lubricating device of synchronous transmission mechanism |
| JP2010242886A (en) * | 2009-04-07 | 2010-10-28 | Toyota Motor Corp | Synchronizer |
| JP2012122578A (en) * | 2010-12-10 | 2012-06-28 | Honda Motor Co Ltd | Transmission synchronization device |
| CN207131755U (en) * | 2017-08-28 | 2018-03-23 | 陕西法士特汽车传动集团有限责任公司 | A kind of C-spring lock ring type synchronized |
| CN208587418U (en) * | 2018-06-26 | 2019-03-08 | 陕西法士特汽车传动集团有限责任公司 | A kind of synchronizer is put into gear position-limit mechanism |
| CN212131110U (en) * | 2020-03-20 | 2020-12-11 | 陕西法士特汽车传动集团有限责任公司 | Lock ring type inertia synchronizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795079A (en) * | 2020-06-24 | 2020-10-20 | 陕西法士特汽车传动集团有限责任公司 | Large-capacity embedded conical surface synchronizer and transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209875783U (en) | Transmission synchronizer | |
| CN101117987A (en) | Stitching type jaw single and bidirectional over running clutch | |
| US9217491B2 (en) | Reverse shift device in transmission | |
| CN101307825B (en) | Double conical surface automobile synchronizer | |
| US3414098A (en) | Positive clutch with multiple friction synchronizing disks | |
| CN111156264B (en) | Double-row-tooth synchronizer and gearbox | |
| CN212131110U (en) | Lock ring type inertia synchronizer | |
| CN111288092A (en) | Lock ring type inertia synchronizer | |
| CN207131755U (en) | A kind of C-spring lock ring type synchronized | |
| CN201202800Y (en) | Locking ring type bi-pyramid synchronizer for third and fourth shifts | |
| CN111795079A (en) | Large-capacity embedded conical surface synchronizer and transmission | |
| SE431115B (en) | SYNCHRONIZATION MECHANISM ON AN EXCHANGE LOAD | |
| CN212959590U (en) | Large-capacity embedded conical surface synchronizer and transmission | |
| US11719290B2 (en) | Synchronizing ring | |
| CN207131753U (en) | A kind of synchronizer locking structure | |
| US20210381558A1 (en) | Synchronizing ring | |
| CN200989436Y (en) | A double-conical surface synchronizer | |
| CN200989435Y (en) | Lock ring type double-conical face synchronizer for one and two gear | |
| JP4069992B2 (en) | Transmission synchronizer | |
| CN210715638U (en) | Synchronizer friction ring connecting block, synchronizer and transmission | |
| CN107477105A (en) | A kind of synchronizer locking structure | |
| CN111102303B (en) | Multi-cone synchronizer ring assembly and synchronizer | |
| CN213711683U (en) | Three-conical-surface locking ring type synchronizer | |
| CN207989585U (en) | A kind of automobile synchronizer | |
| WO2017086858A1 (en) | A latch cone ring for a synchronizing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |