CN209671596U - Synchronizer shifting cylinder - Google Patents
Synchronizer shifting cylinder Download PDFInfo
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- CN209671596U CN209671596U CN201822228644.2U CN201822228644U CN209671596U CN 209671596 U CN209671596 U CN 209671596U CN 201822228644 U CN201822228644 U CN 201822228644U CN 209671596 U CN209671596 U CN 209671596U
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Abstract
This disclosure relates to a kind of synchronizer shifting cylinder, comprising: cylinder body；Piston rod, one end stretch in the inner cavity of cylinder body, and described one end is connected with the first piston moved back and forth along inner cavity；And interior cylinder cap, it fixes in the lumen, be formed as first chamber between the inner wall and first piston of cylinder body, the first stomata is formed in first chamber, be formed as second chamber between first piston and interior cylinder cap, the second stomata is formed in second chamber, be formed as third chamber between interior cylinder cap and the inner wall of cylinder body, the second piston that can be moved back and forth relative to first piston is provided in third chamber, and third stomata is formed on third chamber, by controlling the first stomata, the air inflow of second stomata and third stomata, so that piston rod is in first position, it is switched between middle position and the second position.The synchronizer shifting cylinder, which can be realized, carries out shift operation at first position and the second position, while also setting up neutral position, can shift gears when speed changer operates.
Description
Technical field
This disclosure relates to automobile gear shift field, and in particular, to a kind of synchronizer shifting cylinder.
Background technique
In automobile gear shift, the gear of this gear is changed at once since power output end gear rotational speed will be faster than, together
Step device, which can be avoided, to be occurred to beat tooth phenomenon when the gear that one rotates at a slow speed fills in a high-speed rotating gear by force, guarantees to change
Gear is gone on smoothly.The actuator of synchronizer generally comprises electronic shift actuator, hydraulic gear-shifting actuator and Pneumatic shift and holds
Row device, because Pneumatic shift is at low cost, shift is rapid, advantages of simple structure and simple, application is relatively broad.In the related technology, synchronizer
Shifting cylinder can only switch between two gears, in shift without neutral position, can not shift gears when speed changer operates,
And can be realized three shifting cylinders diameter and height it is larger, be unfavorable for the optimization and simplification of mission case structure.
Utility model content
Purpose of this disclosure is to provide a kind of synchronizer shifting cylinder, which is able to solve existing synchronization
Device shifting cylinder is without neutral position, the technical issues of can not shifting gears when speed changer operates.
To achieve the goals above, the disclosure provides a kind of synchronizer shifting cylinder, comprising: cylinder body；Piston rod, one end are stretched
Enter into the inner cavity of the cylinder body, and described one end is connected with the first piston moved back and forth along the inner cavity；And interior cylinder cap,
It is fixed in the inner cavity, is formed as first chamber, the first chamber between the inner wall of the cylinder body and the first piston
Inner wall on be formed with the first stomata, be formed as second chamber, second chamber between the first piston and the interior cylinder cap
It is formed with the second stomata on the inner wall of room, is formed as third chamber between the interior cylinder cap and the inner wall of the cylinder body, described
The second piston that can be moved back and forth relative to the first piston is provided in three chambers, and on the inner wall of the third chamber
It is formed with third stomata, by controlling the air inflow of first stomata, second stomata and the third stomata, so that
The piston rod switches between first position, middle position and the second position.
Optionally, the air inlet simultaneously of first stomata, second stomata and the third stomata is controlled, described second is living
Plug is supported to be covered in the inner casing, and the first piston is supported in the second piston, and the piston rod is located at the centre
Position；The first stomata air inlet is controlled, second stomata and the third stomata are connected with atmosphere, the first piston
It supports and is covered in the inner casing, the second piston is supported on the inner wall of the cylinder body, and the piston rod is located at described first
Position；It controls first stomata to be communicated with the atmosphere, second stomata and the third stomata air inlet, the first piston support
It withstands on the inner wall of the cylinder body, the second piston is supported to be covered in the inner casing, and the piston rod is located at the second
It sets.
Optionally, the synchronizer shifting cylinder further includes outer cylinder cap, and the inside of the outer cylinder cap is formed with cavity with shape
At the third chamber, the second piston is reciprocally slided along the inner wall of the cavity.
Optionally, the first piston and the piston rod are an integral structure or the first piston is along the cylinder body
The stroke being reciprocally moveable is the second piston along twice of the cavity interior walls reciprocally sliding stroke.
Optionally, the synchronizer shifting cylinder further includes the upper cover being connected by fastener with the cylinder body, described
First stomata, second stomata and the third stomata are respectively formed on the upper lid.
Optionally, the upper cover is fixedly connected with the outer cylinder cap by snap ring.
Optionally, cascaded surface is formed on the inner wall of the upper cover, the outer shell, which covers, is formed with stepped groove, the inner casing
Lid is limited between the cascaded surface and the stepped groove.
Optionally, the first piston is set in the end of the piston rod and is connected by hexagonal eye bolt.
Optionally, first stomata, second stomata and the third stomata are respectively connected on solenoid valve, and
Compressed gas source is also connected on the solenoid valve.
Optionally, the solenoid valve is two-bit triplet solenoid valve.
Through the above technical solutions, by the air inflow of the first stomata of control, the second stomata and third stomata, correspondingly
First chamber, second chamber and the indoor air pressure of third chamber are adjusted to the active force of first piston and second piston, drives and lives
Stopper rod switches between middle position, first position and the second position, can be realized in first position and the second position
Shi Jinhang shift operation, while neutral position is also set up between two gears, it can shift gears when speed changer operates, and lead to
The cooperation of three stomatas and two pistons is crossed, first piston and second piston can be driven to move, simultaneously to be switched fast piston rod
Position shift gears, response speed faster, shift gears it is more steady.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the cross-sectional view for the synchronizer shifting cylinder that one illustrative embodiments of the disclosure provide；
Fig. 2 is that piston rod is centrally located in the synchronizer shifting cylinder of disclosure another exemplary embodiment offer
Structural schematic diagram；
Fig. 3 is that piston rod is located at first position in the synchronizer shifting cylinder of disclosure another exemplary embodiment offer
Structural schematic diagram；
Fig. 4 is that piston rod is located at the second position in the synchronizer shifting cylinder of disclosure another exemplary embodiment offer
Structural schematic diagram.
Description of symbols
1 cylinder body, 2 piston rod
The outer cylinder cap of cylinder cap 4 in 3
5 fastener, 6 upper cover
40 cascaded surface, 60 stepped groove
7 snap ring, 8 connector
10 first chamber, 101 first stomata
20 second chamber, 201 second stomata
30 third chamber, 301 third stomata
11 first piston, 12 second piston
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as "upper", "lower" is typically referred to phase
It answers and defines on the basis of the drawing of attached drawing, "inner", "outside" refer to the inner and outer of corresponding component profile, in addition, using in the disclosure
Term " first ", " second " etc. be not have succession and importance to distinguish an element and another element.Separately
Outside, in the following description when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different attached drawings indicate the same or similar and want
Element.
As depicted in figs. 1 and 2, the disclosure provides a kind of synchronizer shifting cylinder, which includes cylinder body
1, piston rod 2 and interior cylinder cap 3, wherein one end of piston rod 2 stretches in the inner cavity of cylinder body 1, and end is connected with along inner cavity
The first piston 11 of reciprocating motion；Interior cylinder cap 3 is fixed in the lumen, and inner cavity is divided into three chambers by interior cylinder cap 3 and first piston 11
Room is formed as first chamber 10 between the inner wall and first piston 11 of cylinder body 1, the first stomata 101 is formed in first chamber 10,
Be formed as second chamber 20 between first piston 11 and interior cylinder cap 3, the second stomata 201, interior cylinder cap 3 are formed in second chamber 20
Be formed as third chamber 30 between the inner wall of cylinder body 1, being provided in third chamber 30 can back and forth transport relative to first piston 11
Dynamic second piston 12, and third stomata 301 is formed on third chamber 30, by controlling the first stomata 101, the second stomata
201 and third stomata 301 air inflow so that piston rod 2 carries out between first position, middle position and the second position
Switching.
Through the above technical solutions, passing through the air inlet of control the first stomata 101, the second stomata 201 and third stomata 301
Amount, the air pressure correspondingly adjusted in first chamber 10, second chamber 20 and third chamber 30 are living to first piston 11 and second
The active force of plug 12 drives piston rod 2 to switch between middle position, first position and the second position, can be realized
Shift operation is carried out at first position and the second position, while also setting up neutral position between two gears, can become
Fast device is shifted gears when operating, and passes through the cooperation of three stomatas and two pistons, and first piston 11 and second can be driven to live simultaneously
12 movement of plug, is shifted gears with being switched fast the position of piston rod 2, and response speed faster, is shifted gears more steady.
In addition, in the disclosure, piston rod 1, first piston 11, interior cylinder cap 3 and second piston 12 outer ring lead to respectively
The inner wall for crossing y-type seal ring and cylinder body 1 cooperates to realize sealing, and the groove for installing sealing ring is respectively formed on four,
Reversible sealing can be achieved, and it is small to rub in reciprocating movement, prolongs the service life.
Specifically, the illustrative embodiments as the disclosure, as shown in Fig. 2, control the first stomata 101, the second gas
The air inlet simultaneously of hole 201 and third stomata 301 is respectively filled with gas in first chamber 10, second chamber 20 and third chamber 30,
Under the action of gas pressure, second piston 12 is supported on interior cylinder cap 3, and first piston 11 is supported in second piston 12, living
Stopper rod 2 is centrally located, which is neutral position；As shown in figure 3, control 101 air inlet of the first stomata, the second stomata
201 and third stomata 301 be connected with atmosphere, the air pressure in first chamber 10 constantly increases and first piston 11 is pushed to transport to the left
It is dynamic, it is supported on interior cylinder cap 3 until moving to first piston 11, is able to drive second while first piston 11 moves downward
Piston 12 moves downward, until second piston 12 is supported on the inner wall of cylinder body 1, at this point, piston rod 2 is located at first position, together
The synchronous ring of device is walked in conjunction with the rubbing surface of gear to be combined, the shift in first position terminates；When synchronizer is carrying out next time
When shift, piston rod 2 needs to briefly return to middle position, i.e., controls the first stomata 101, the second stomata 201 and third gas simultaneously
301 air inlet of hole, to switch to neutral gear, as shown in figure 4, the first stomata 101 of control is communicated with the atmosphere, the second stomata 201 and third
301 air inlet of stomata, the air pressure in second chamber 20 and third chamber 30 constantly increase, and push second piston 12 and first respectively
Piston 11 moves right, and under the action of third stomata 301 enters gas, second piston 12 is supported on interior cylinder cap 3, second
Stomata 201 enters under the action of gas, and first piston 11 is supported on the inner wall of cylinder body 1, at this point, piston rod 2 is located at second
It sets, in conjunction with the rubbing surface of gear to be combined, the shift in the second position terminates the synchronous ring of synchronizer.The synchronization that the disclosure provides
Device shifting cylinder may be implemented in the switching between two gears, while be additionally provided with neutral gear between two gears, can be in speed change
Device is shifted gears when operating.In addition, in the present embodiment, it is as shown in the figure, main by the gas entered in the first stomata 101
For pushing first piston 11 to move downward, it is mainly used for pushing by the gas entered in the second stomata 201 and third stomata 301
First piston 11 and second piston 12 move right, and therefore, the first stomata 101 need to be provided with the right side of first chamber 10, and second
Stomata 201 and third stomata 301 need to be provided with the left side of corresponding chambers respectively.
As depicted in figs. 1 and 2, the synchronizer shifting cylinder that the disclosure provides further includes outer cylinder cap 4, the inside of outer cylinder cap 4
Cavity is formed with to form third chamber 30, second piston 12 is reciprocally slided along the inner wall of cavity.Outer cylinder cap 4 can be and cylinder
Any appropriate configuration that 1 shape of body matches, but need to guarantee the inner cavity of outer cylinder cap 4, second piston 12, interior cylinder cap 3 and
One piston 11 coaxial arrangement, in this way, second piston 12 can be driven to move when first piston 11 moves axially in reciprocal fashion, and will not
Clamping stagnation and pause occurs.
First piston 11 is second piston 12 along cavity interior walls reciprocally sliding stroke along the stroke that cylinder body 1 is reciprocally moveable
Twice.In this way, during by middle position to first position, when first piston 11 is supported to interior cylinder cap 3, Neng Goubao
Card second piston 12 is just supported on outer cylinder cap 4.
In the disclosure, as depicted in figs. 1 and 2, which further includes by fastener 5, such as bolt
The upper cover 6 being connected with cylinder body 1, the first stomata 101, the second stomata 201 and third stomata 301 are respectively formed in upper cover 6.
Inner cavity is collectively formed in upper cover 6, the inner wall of cylinder body 1 and outer cylinder cap 4 presented hereinabove, and first piston 11 and second piston 12 are divided
It is not moved back and forth in corresponding chamber.Further, in the present embodiment, as shown in Figure 1 and Figure 4, upper cover 6 and outer cylinder cap
4 with snap ring 7 by that can be fixedly connected, to guarantee integrally-built air-tightness.In addition, the synchronizer shift gas provided in the disclosure
1 Integrated design of cylinder body realizes cylinder function using the space of upper cover cabinet, it is same can to reduce this in the inside of upper cover cabinet in cylinder
Axial upper, the longitudinal occupied space of device shifting cylinder is walked, and structure is simpler, manufacturing cost is low.
Interior cylinder cap 3 be fixed on the mode in the inner cavity of cylinder body 1 can there are many, in the disclosure, as shown in figure 4, upper cover 6
Inner wall on be formed with cascaded surface 60, stepped groove 40 is formed on outer cylinder cap 4, interior cylinder cap 3 is limited in cascaded surface 60 and ladder
Between slot 40, interior cylinder cap 3 can be cylindrical structure, and stepped groove 40 and cascaded surface 60 match internal cylinder cap in circumferential direction
3 are limited, and realize that the position in axial direction is fixed, and do not need the aperture on cylinder body 1 and interior cylinder cap 3, easy for installation and energy
Enough guarantee the air-tightness of structure.In other embodiments, cylinder body 1 and interior cylinder cap 3 can also pass through the fastener across the two
It is connected.
As shown in Figures 2 to 4, the end of first piston 11 and piston rod 2 can be an integral structure, in other embodiment party
In formula, as shown in Figure 1, first piston 11 is set in the end of piston rod 2 and is connected by connector 8, to form prismatic pair,
In the present embodiment, as shown in Figure 1, connector 8 is hexagonal eye bolt, the connection of first piston 11 and piston rod 2 is realized,
Guarantee first piston 11 when moving back and forth to the induced effect of piston rod 2.
In addition, in the disclosure, to realize the control to the first stomata 101, the second stomata 201 and third stomata 301,
First stomata 101, the second stomata 201 and third stomata 301 are respectively connected on solenoid valve, and pressure is also connected on solenoid valve
Contracting gas source.The compressed air of constant pressure is full of in compressed gas source, by regulating and controlling solenoid valve, can simultaneously to three stomatas into
Gas time, air inflow are controlled, easy to operate and directly effective.Specifically, in the present embodiment, which can be
Two-bit triplet solenoid valve can control above three stomata that is, by a solenoid valve simultaneously, realize effective benefit to solenoid valve
With simplifying the structure of shifting cylinder, saved cost, and shorten axial distance.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of synchronizer shifting cylinder characterized by comprising
Cylinder body (1)；
Piston rod (2), one end stretch in the inner cavity of the cylinder body (1), and described one end is connected with and back and forth transports along the inner cavity
Dynamic first piston (11)；And
Interior cylinder cap (3), is fixed in the inner cavity,
Be formed as first chamber (10), the first chamber between the inner wall and the first piston (11) of the cylinder body (1)
(10) it is formed on inner wall the first stomata (101), is formed as second between the first piston (11) and the interior cylinder cap (3)
Chamber (20) is formed with the second stomata (201) on the inner wall of the second chamber (20), the interior cylinder cap (3) and the cylinder body
(1) be formed as between inner wall third chamber (30), being provided in the third chamber (30) can be relative to the first piston
(11) second piston (12) moved back and forth, and third stomata (301) are formed on the inner wall of the third chamber (30), lead to
The air inflow for controlling first stomata (101), second stomata (201) and the third stomata (301) is crossed, so that institute
Piston rod (2) is stated to switch between first position, middle position and the second position.
2. synchronizer shifting cylinder according to claim 1, which is characterized in that
Control the air inlet simultaneously of first stomata (101), second stomata (201) and the third stomata (301), described the
Two pistons (12) are supported on the interior cylinder cap (3), and the first piston (11) is supported on the second piston (12), described
Piston rod (2) is located at the middle position；
The first stomata (101) air inlet is controlled, second stomata (201) and the third stomata (301) are connected with atmosphere
Logical, the first piston (11) is supported on the interior cylinder cap (3), and the second piston (12) is supported in the cylinder body (1)
On inner wall, the piston rod (2) is located at the first position；
It controls first stomata (101) to be communicated with the atmosphere, second stomata (201) and the third stomata (301) air inlet,
The first piston (11) is supported on the inner wall of the cylinder body (1), and the second piston (12) is supported in the interior cylinder cap (3)
On, the piston rod (2) is located at the second position.
3. synchronizer shifting cylinder according to claim 2, which is characterized in that the synchronizer shifting cylinder further includes outer
Cylinder cap (4), the inside of the outer cylinder cap (4) are formed with cavity to form the third chamber (30), the second piston (12)
Inner wall along the cavity reciprocally slides.
4. synchronizer shifting cylinder according to claim 3, which is characterized in that the first piston (11) is along the cylinder body
(1) stroke being reciprocally moveable is the second piston (12) along twice of the cavity interior walls reciprocally sliding stroke.
5. synchronizer shifting cylinder according to claim 3, which is characterized in that the synchronizer shifting cylinder further includes leading to
Cross the upper cover (6) that fastener (5) is connected with the cylinder body (1), first stomata (101), second stomata (201) with
And the third stomata (301) is respectively formed on the upper cover (6).
6. synchronizer shifting cylinder according to claim 5, which is characterized in that the upper cover (6) and the outer cylinder cap (4)
It is fixedly connected by snap ring (7).
7. synchronizer shifting cylinder according to claim 5, which is characterized in that be formed on the inner wall of the upper cover (6)
Cascaded surface (60) is formed with stepped groove (40) on the outer cylinder cap (4), and the interior cylinder cap (3) is limited in the cascaded surface
(60) between the stepped groove (40).
8. synchronizer shifting cylinder according to claim 1, which is characterized in that the first piston (11) and the piston
Bar (2) is an integral structure or the first piston (11) is set in the end of the piston rod (2) and by connector (8)
It is connected.
9. synchronizer shifting cylinder according to claim 1 to 8, which is characterized in that first stomata
(101), second stomata (201) and the third stomata (301) are respectively connected on solenoid valve, and on the solenoid valve
It is also connected with compressed gas source.
10. synchronizer shifting cylinder according to claim 9, which is characterized in that the solenoid valve is two-bit triplet electromagnetism
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822228644.2U CN209671596U (en) | 2018-12-26 | 2018-12-26 | Synchronizer shifting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822228644.2U CN209671596U (en) | 2018-12-26 | 2018-12-26 | Synchronizer shifting cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN209671596U true CN209671596U (en) | 2019-11-22 |
Family
ID=68563865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822228644.2U Active CN209671596U (en) | 2018-12-26 | 2018-12-26 | Synchronizer shifting cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022214232B3 (en) | 2022-12-21 | 2024-06-06 | Zf Friedrichshafen Ag | Actuating device for actuating at least one switching device of a motor vehicle |
-
2018
- 2018-12-26 CN CN201822228644.2U patent/CN209671596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022214232B3 (en) | 2022-12-21 | 2024-06-06 | Zf Friedrichshafen Ag | Actuating device for actuating at least one switching device of a motor vehicle |
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