CN203847655U - Self-exhaust type inter-axle differential lock operating mechanism - Google Patents
Self-exhaust type inter-axle differential lock operating mechanism Download PDFInfo
- Publication number
- CN203847655U CN203847655U CN201420190538.9U CN201420190538U CN203847655U CN 203847655 U CN203847655 U CN 203847655U CN 201420190538 U CN201420190538 U CN 201420190538U CN 203847655 U CN203847655 U CN 203847655U
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- CN
- China
- Prior art keywords
- push rod
- operating mechanism
- reducer shell
- jack
- passage
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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 - Lifetime
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 23
- 238000003801 milling Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 11
- 238000005266 casting Methods 0.000 abstract description 9
- 238000003780 insertion Methods 0.000 abstract 5
- 230000037431 insertion Effects 0.000 abstract 5
- 238000000034 method Methods 0.000 description 9
- 238000013475 authorization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- Gear-Shifting Mechanisms (AREA)
Abstract
A self-exhaust type inter-axle differential lock operating mechanism comprises a speed reducer shell and a push rod arranged inside the speed reducer shell, wherein the head of the push rod is fixedly connected with a piston, the tail of the push rod is in insertion fit with an insertion hole formed in the inner wall of the speed reducer shell, the insertion hole is a blind hole, a channel is formed between the hole wall of the insertion hole and the side part of the push rod, and two ends of the channel are respectively communicated with the insertion hole and an inner cavity of the speed reducer shell. The design not only realizes the self-exhaust of the operating mechanism, but also reduces the occupied space and simplifies the casting process.
Description
Technical field
The utility model relates to a kind of differential lock operating mechanism, relates in particular to one from gas-discharging type shaft space difference speed lock operating mechanism, is specifically applicable to reduce taking up room of operating mechanism, simplifies casting technique.
Background technique
In existing ransaxle shaft space difference speed lock operating mechanism, piston is arranged in cylinder, and piston is fixedly connected with the head of push rod, and the afterbody of push rod is bearing on reducer shell, and shift fork and return spring are set on push rod.In the time inflating in cylinder air chamber, piston promotes push rod and moves downward, thereby drives shift fork to move downward the action of differential lock locking; In the time of the outside exhaust of cylinder, piston moves upward under the promotion of return spring, thereby drives shift fork to move upward differential lock release action.
Chinese patent notice of authorization number is CN203431123U, notice of authorization day is that the utility model patent on February 21st, 2014 discloses a kind of automobile main reducer assembly with between centers differential lock, lockable mechanism in this speed reducer assembly comprises: piston rod, be set in spring and shift fork on piston rod, and in the inner chamber of bevel housing, extend a boss, this boss is provided with through hole, the bar head of described piston rod is through this through hole, described spring and this boss butt.Although this model utility can accurately be adjusted shift fork position, thereby ensure that the engagement of shaft space difference speed lock puts in place, but still have the following disadvantages:
Because piston rod its lower end surface in the process moving downward can promote Air Flow, for make air not compressed and form resistance, the socket design coordinating with the bar head of piston rod is become through hole by this model utility, and the below of through hole is reserved with cavity, this structure not only needs to take the larger space of housing inner chamber, and need place core, casting technique complexity in the position of the corresponding cavity of mould in the time of cast housing.
Summary of the invention
The purpose of this utility model is to overcome the problem large, casting technique is complicated that takes up room that existing structure exists, and provides a kind of compact structure and casting technique simply from gas-discharging type shaft space difference speed lock operating mechanism.
For realizing above object, the technical solution of the utility model is as follows:
A kind of from gas-discharging type shaft space difference speed lock operating mechanism, comprise reducer shell and the inner push rod arranging thereof, the head of described push rod is fixedly connected with the piston that is positioned at reducing gearbox external body, the afterbody of push rod inserts and coordinates with the jack of offering on the inwall of reducer shell, and on push rod, is arranged with successively from the head to afterbody shift fork, the return spring of the inner chamber that is simultaneously positioned at reducer shell;
Described jack is blind hole, and is formed with passage between the hole wall of jack and the sidepiece of push rod, and the two ends of this passage communicate with jack, inner chamber respectively.
On the sidepiece of described push rod, return spring place offers milling flat, between this milling flat and hole wall, is formed with passage.
The aperture of described passage be 2 ?3mm.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model one jack in gas-discharging type shaft space difference speed lock operating mechanism is blind hole, and be formed with passage between the hole wall of jack and the sidepiece of push rod, the two ends of this passage communicate with jack, inner chamber respectively, this design realized differential lock operating mechanism from degassing function, without the reserved cavity in the bottom at jack, casting technique is simple, and casting cost is lower.Therefore, the utility model has not only effectively reduced taking up room of operating mechanism, and casting technique is simple, casting cost is lower.
2, the utility model a kind of in gas-discharging type shaft space difference speed lock operating mechanism the aperture of passage be 2 ?3mm, this design is realizing Air Flow in jack and ensured smoothly the structural strength of push rod simultaneously.Therefore, the utility model has ensured the structural strength of push rod.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: reducer shell 1, inwall 11, inner chamber 12, push rod 2, head 21, afterbody 22, milling flat 23, shift fork 3, return spring 4, jack 5, hole wall 51, piston 6, passage 7.
Embodiment
Below in conjunction with brief description of the drawings and embodiment, the utility model is described in further detail.
Referring to Fig. 1, a kind of from gas-discharging type shaft space difference speed lock operating mechanism, comprise reducer shell 1 and the inner push rod 2 arranging thereof, the head 21 of described push rod 2 is fixedly connected with the piston 6 that is positioned at reducer shell 1 outside, the afterbody 22 of push rod 2 inserts and coordinates with the jack 5 of offering on the inwall 11 of reducer shell 1, and 21 is arranged with successively shift fork 3, the return spring 4 of the inner chamber 12 that is simultaneously positioned at reducer shell 1 to afterbody 22 from the head on push rod 2;
Described jack 5 is blind hole, and is formed with passage 7 between the hole wall 51 of jack 5 and the sidepiece of push rod 2, and the two ends of this passage 7 communicate with jack 5, inner chamber 12 respectively.
On the sidepiece of described push rod 2, return spring 4 places offer milling flat 23, between this milling flat 23 and hole wall 51, are formed with passage 7.
The aperture of described passage 7 be 2 ?3mm.
Principle of the present utility model is described as follows:
Jack 5 is designed to blind hole by the utility model, and the part of caudad 22 has been offered milling flat 23 on push rod 2, between this milling flat 23 and the hole wall 51 of jack 5, form passage 7, in the time that push rod 2 moves downward, its afterbody 22 compresses the air in jack 5, and compressed air drains into inner chamber 12 along passage 7, in the time that push rod 2 moves upward, air in inner chamber 12 is along passage 7 to the interior filling of jack 5, thereby realizes from exhaust, and machining is convenient in the design of milling flat 23.
Because push rod 2 needs to bear certain active force in movement process, the pore size of passage 7 can have influence on the structural strength of push rod 2, therefore, the utility model by its aperture be controlled at 2 ?3mm.
Embodiment 1:
Referring to Fig. 1, a kind of from gas-discharging type shaft space difference speed lock operating mechanism, comprise reducer shell 1 and the inner push rod 2 arranging thereof, the head 21 of described push rod 2 is fixedly connected with the piston 6 that is positioned at reducer shell 1 outside, the afterbody 22 of push rod 2 inserts and coordinates with the jack 5 of offering on the inwall 11 of reducer shell 1, described jack 5 is blind hole, on push rod 2,21 be arranged with successively the shift fork 3 of the inner chamber 12 that is simultaneously positioned at reducer shell 1 to afterbody 22 from the head, return spring 4, on the sidepiece of push rod 2, return spring 4 places offer milling flat 23, between this milling flat 23 and the hole wall 51 of jack 5, be formed with aperture and be 2 ?the passage 7 of 3mm, the two ends of described passage 7 respectively with jack 5, inner chamber 12 communicates.
Claims (3)
1. lock operating mechanism from gas-discharging type shaft space difference speed for one kind, comprise reducer shell (1) and the inner push rod (2) arranging thereof, the head (21) of described push rod (2) piston (6) outside with being positioned at reducer shell (1) is fixedly connected with, the afterbody (22) of push rod (2) inserts and coordinates with the jack (5) of offering on the inwall (11) of reducer shell (1), and on push rod (2), (21) to afterbody (22) is arranged with shift fork (3), the return spring (4) of the inner chamber (12) that is simultaneously positioned at reducer shell (1) successively from the head, it is characterized in that:
Described jack (5) is blind hole, and is formed with passage 7 between the hole wall (51) of jack (5) and the sidepiece of push rod (2), and the two ends of this passage 7 communicate with jack (5), inner chamber (12) respectively.
2. one according to claim 1 is from gas-discharging type shaft space difference speed lock operating mechanism, it is characterized in that: on the sidepiece of described push rod (2), return spring (4) locates to offer milling flat (23), between this milling flat (23) and hole wall (51), be formed with passage (7).
3. one according to claim 2, from gas-discharging type shaft space difference speed lock operating mechanism, is characterized in that: the aperture of described passage (7) be 2 ?3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190538.9U CN203847655U (en) | 2014-04-19 | 2014-04-19 | Self-exhaust type inter-axle differential lock operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190538.9U CN203847655U (en) | 2014-04-19 | 2014-04-19 | Self-exhaust type inter-axle differential lock operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847655U true CN203847655U (en) | 2014-09-24 |
Family
ID=51560677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420190538.9U Expired - Lifetime CN203847655U (en) | 2014-04-19 | 2014-04-19 | Self-exhaust type inter-axle differential lock operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518473A (en) * | 2018-04-26 | 2018-09-11 | 徐工集团工程机械有限公司 | A kind of vehicle primary actuator and its control method |
-
2014
- 2014-04-19 CN CN201420190538.9U patent/CN203847655U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518473A (en) * | 2018-04-26 | 2018-09-11 | 徐工集团工程机械有限公司 | A kind of vehicle primary actuator and its control method |
| CN108518473B (en) * | 2018-04-26 | 2023-06-02 | 江苏徐工工程机械研究院有限公司 | Main driver of vehicle and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |