CN204592270U - A kind of secondary box of gearbox synchronizer protective system with power take-off - Google Patents
A kind of secondary box of gearbox synchronizer protective system with power take-off Download PDFInfo
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- CN204592270U CN204592270U CN201520168729.XU CN201520168729U CN204592270U CN 204592270 U CN204592270 U CN 204592270U CN 201520168729 U CN201520168729 U CN 201520168729U CN 204592270 U CN204592270 U CN 204592270U
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Abstract
With a secondary box of gearbox synchronizer protective system for power take-off, comprise the secondary box of gearbox cylinder and power take-off control cylinder that are connected with car load source of the gas through three-way valve; Described three-way valve air inlet pipeline arranges power take-off valve, between three-way valve and power take-off valve or on any outlet pipe of three-way valve, is also provided with gas path control valve; The neutral gear suction port of described secondary box of gearbox cylinder is connected with three-way valve, and the low-grade suction port of secondary box of gearbox cylinder is connected car load source of the gas with high-grade suction port, and the air inlet pipeline of high-grade suction port passes through gas path control valve simultaneously; When power take-off works, gas path control valve cuts off the high-grade suction port air feed of secondary box of gearbox cylinder, even if shift to a higher gear also can not pass through air-flow by mistake, and then realizes the protection to auxiliary box synchronizer.The utility model is applicable to the speed changer of all odd-side band power take-offs, only needs increase gas path control valve in implementation process, can reduce auxiliary box synchronizer high-grade side fault significantly.
Description
Technical field
The utility model relates to a kind of secondary box of gearbox synchronizer protective gear, is specifically related to a kind of secondary box of gearbox synchronizer protective system with power take-off.
Background technique
Along with the internationalization day by day of product, user requires also more and more higher to the quality and performance of gearbox.The secondary box of gearbox synchronizer of the band power take-off of current domestic production easily damages, find through investigation, main cause is when force taking of parking, and driver is through constant error shift to a higher gear, cause auxiliary box synchronizer Fast Wearing to cause inefficacy, therefore can not meet client to gearbox reliability and the requirement in life-span.Along with lifting and the international needs of product of user's purchasing power and quality requirements, the basis of existing production transmissions is developed auxiliary box synchronizer protective gear, thus the reliability improving gearbox is significant.
Model utility content
The purpose of this utility model is for above-mentioned defect of the prior art; there is provided one can control high-grade gas path on-off by power take-off; and then when ensureing power take-off work; secondary box of gearbox cannot shift to a higher gear, auxiliary box synchronizer is realized to the secondary box of gearbox synchronizer protective system of the band power take-off of available protecting.
To achieve these goals, the technical solution adopted in the utility model is:
Comprise the secondary box of gearbox cylinder and power take-off control cylinder that are connected with car load source of the gas through three-way valve; Described three-way valve air inlet pipeline arranges power take-off valve, between three-way valve and power take-off valve or on any outlet pipe of three-way valve, is also provided with gas path control valve; The neutral gear suction port of described secondary box of gearbox cylinder is connected with three-way valve, and the low-grade suction port of secondary box of gearbox cylinder is connected car load source of the gas with high-grade suction port, and the air inlet pipeline of high-grade suction port passes through gas path control valve simultaneously; When power take-off works, gas path control valve cuts off the high-grade suction port air feed of secondary box of gearbox cylinder, even if shift to a higher gear also can not pass through air-flow by mistake, and then realizes the protection to auxiliary box synchronizer; When power take-off quits work, gas path control valve recovers the high-grade suction port air feed of secondary box of gearbox cylinder.
Described gas path control valve is arranged between three-way valve and power take-off control cylinder; Gas path control valve suction port respectively connecting tee valve is given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder, and air outlet connects the power taking suction port of power take-off control cylinder and the high-grade suction port of secondary box of gearbox cylinder respectively.
An air outlet of described gas path control valve and power taking suction port directly one-body molded, another air outlet connects the high-grade suction port of secondary box of gearbox cylinder by pipeline; Or two of described gas path control valve air outlets are all connected with the high-grade suction port of secondary box of gearbox cylinder with power taking suction port by pipeline.
An air outlet of described gas path control valve is connected by pipeline with power taking suction port, and the high-grade suction port of another air outlet and secondary box of gearbox cylinder is directly one-body molded.
Described gas path control valve is arranged between three-way valve and secondary box of gearbox cylinder, the suction port of gas path control valve respectively connecting tee valve is given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder, and air outlet connects the neutral gear suction port of secondary box of gearbox cylinder and high-grade suction port respectively.
An air outlet of described gas path control valve and the neutral gear suction port of secondary box of gearbox cylinder directly one-body molded, another air outlet connects high-grade suction port by pipeline; Or described gas path control valve two air outlets are all connected with high-grade suction port with the neutral gear suction port of secondary box of gearbox cylinder by pipeline.
Described gas path control valve is arranged between three-way valve and power take-off valve; Gas path control valve suction port connects the high-grade air inlet pipeline of car load source of the gas and secondary box of gearbox cylinder respectively, the high-grade suction port of air outlet difference connecting tee valve suction port and secondary box of gearbox cylinder.
Described gas path control valve adopts gas control, hydraulic control, automatically controlled or mechanical displacement control.
The low-grade suction port of described secondary box of gearbox cylinder is connected car load source of the gas with high-grade suction port through secondary box of gearbox control valve, and the air inlet pipeline between the high-grade suction port of secondary box of gearbox cylinder and secondary box of gearbox control valve passes through gas path control valve.
Described gas path control valve comprises the valve body be made up of upper valve body and lower valve body, arranges valve body sealing device between upper valve body and lower valve body; Described upper valve body comprises the piston cavity being provided with piston, and upper valve body offering the first suction port and the first air outlet, lower valve body has the inner chamber installing spool, and lower valve body is separated by valve core sealing device, offer relief opening respectively, the second suction port and the second air outlet; Described spool is the axis body offering two gas circuit grooves, and spool axis body and valve core sealing device are combined closely; Described spool upper-end surface coordinates with piston, and lower end surface arranges Returnning spring, when spool move to gas circuit groove relative with valve core sealing device time, air-flow by gas circuit groove in the second suction port and the second air outlet or circulate between the second air outlet and relief opening; Air inlet pipeline between the high-grade suction port of described secondary box of gearbox cylinder and secondary box of gearbox control valve is connected to the second suction port and the second air outlet.
Compared with prior art, the utility model, by arranging gas path control valve, achieves the control of power take-off break-make to high-grade gas circuit.When power take-off works, gas path control valve cuts off the high-grade air feed of odd-side, even if shift to a higher gear also can not pass through air-flow by mistake, then realizes the protection to auxiliary box synchronizer; When power take-off does not work, the high-grade air feed of gas path control valve conducting odd-side, high-grade air-flow enters auxiliary box cylinder by gas path control valve, performs normal engage a gear process.Integration of the present utility model and versatility good, feasibility is high, be applicable to the speed changer of all odd-side band power take-offs, and only need increase gas path control valve in implementation process, need not change other designs, cost is low, risk is little, repacking is convenient, significantly can reduce auxiliary box synchronizer high-grade side fault, promote the quality of speed changer.
Further, the utility model gas path control valve can be arranged on arbitrary position on three-way valve air inlet or outlet pipe, can either with existing supercharging type cylinder or power take-off control cylinder directly one-body molded, also other suitable positions can be extended on by pipeline, setting type is versatile and flexible, adapts to different installing spaces.
Accompanying drawing explanation
The gas circuit connection diagram of Fig. 1 prior art structure;
Fig. 2 gas path control valve is arranged on the gas circuit connection diagram between three-way valve and power take-off control cylinder;
Fig. 3 gas path control valve is arranged on the gas circuit connection diagram between three-way valve and power take-off valve;
The overall structure sectional view of Fig. 4 the utility model gas path control valve;
The overall structure side view of Fig. 5 the utility model gas path control valve;
Fig. 6 gas path control valve and power take-off control cylinder integrated formed structure schematic diagram:
Gas flow schematic diagram during the work of (a) power take-off; Gas flow schematic diagram when () power take-off does not work b;
Fig. 7 gas path control valve and power take-off control cylinder pipeline jointing construction schematic diagram;
Fig. 8 gas path control valve and auxiliary box cylinder high-grade suction port integrated formed structure schematic diagram;
Fig. 9 gas path control valve and auxiliary box cylinder neutral gear suction port integrated formed structure schematic diagram;
Figure 10 gas path control valve and auxiliary box cylinder pipeline jointing construction schematic diagram;
In accompanying drawing: 1. power take-off valve; 2. car load tracheae; 3. power take-off valve control valve; 4. three-way valve; 5. gas path control valve; 6. secondary box of gearbox cylinder; 7. power take-off control cylinder; 8. neutral gear suction port; 9. low-grade suction port; 10. high-grade suction port; 11. secondary box of gearbox control valves; 12. power taking suction ports; 13. valve bodies; 14. valve body sealing devices; 15. spools; 16. pistons; 17. Returnning springs; 18. valve core sealing devices; 19. relief openings; 20. gas circuit grooves; 21. valve seals; 22. valve body setting sleeves; 23. valve core seal rings; 24. spool chamber spacers; A. the first suction port; A '. the first air outlet; B. the second suction port; B '. the second air outlet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1, the secondary box of gearbox of conventional belt power take-off is when realizing force taking of parking, driver is stopped, speed changer main tank is neutral position state, power take-off valve 1 opens power take-off work gas circuit, the power taking suction port 12 of power take-off control cylinder 7 and the neutral gear suction port 8 of secondary box of gearbox cylinder 6 connect source of the gas simultaneously, secondary box of gearbox cylinder 6 controlled variator odd-side is hung to neutral gear, power take-off control cylinder 7 controls power take-off and is connected with speed changer, after any gear of driver's drag-down, power take-off is started working, when driver's force taking of parking misses shift to a higher gear, secondary box of gearbox control valve 11 opens high-grade gas circuit, source of the gas connected by high-grade suction port 10, secondary box of gearbox is hung to high-grade, engage a gear state is in and vehicle is in halted state due to speed changer main tank, easily damage is caused to the synchronizer friction material of secondary box of gearbox when secondary box of gearbox is put into gear, and may have an accident danger, available protecting can not be carried out, auxiliary box synchronizer Fast Wearing is caused to cause inefficacy, also peril may be caused.
See Fig. 2,3, the utility model structurally comprises the secondary box of gearbox cylinder 6 and power take-off control cylinder 7 that are connected with car load source of the gas through three-way valve 4; Three-way valve 4 air inlet pipeline arranges power take-off valve 1, gas path control valve 5 is also provided with between three-way valve 4 and power take-off valve 1 or on any outlet pipe of three-way valve 4, gas path control valve 5 can be arranged between three-way valve 4 and power take-off control cylinder 7, also can be arranged between three-way valve 4 and secondary box of gearbox cylinder 6.
The neutral gear suction port 8 of secondary box of gearbox cylinder 6 is connected with three-way valve 4, low-grade suction port 9 is connected car load source of the gas with high-grade suction port 10 through secondary box of gearbox control valve 11, and the air inlet pipeline between high-grade suction port 10 and secondary box of gearbox control valve 11 is also by gas path control valve 5.
To set up gas path control valve 5 between three-way valve 4 and power take-off control cylinder 7; the high-grade intake requirement of the utility model secondary box of gearbox cylinder 6 just can pass into high-grade suction port 10 through gas path control valve 5; the air inlet of power take-off control cylinder 7 simultaneously also needs just can pass into power taking suction port 12 through gas path control valve 5; when power take-off works; gas path control valve 5 cuts off the high-grade air feed of secondary box of gearbox cylinder 6; even if shift to a higher gear also can not pass through air-flow so by mistake, and then realize the protection to auxiliary box synchronizer.
See Fig. 4,5, gas path control valve 5 of the present utility model comprises the valve body 13 be made up of upper valve body and lower valve body, between upper valve body and lower valve body, valve body sealing device 14 is set, valve body sealing device 14 comprises the valve seals 21 and valve body setting sleeve 22 that cooperatively interact, valve body setting sleeve 22 is arranged between upper valve body and lower valve body, and valve seals 21 is arranged between the seam of valve body setting sleeve 22 and lower valve body.Upper valve body comprises the piston cavity being provided with piston 16, and offers the first suction port A and the first air outlet A ', and the piston cavity of piston 4 upper part is communicated with the first air outlet A ' with the first suction port A simultaneously, and the piston cavity of piston 16 lower part is connected with air.Lower valve body is separated by valve core sealing device 18, offer relief opening 19 respectively, second suction port B and the second air outlet B ', and the second air outlet B ' is arranged between relief opening 19 and the second suction port B, valve core sealing device 18 comprises the valve core seal ring 23 and spool chamber spacer 24 that cooperatively interact; Lower valve body also has the inner chamber installing spool 15, and spool 15 upper-end surface coordinates with piston 16, and lower end surface arranges Returnning spring 17, and spool 15 is the axis body laterally offering two gas circuit grooves 20, and spool 15 axis body can be combined closely with valve core sealing device 18; When gas circuit groove 20 is relative with valve core sealing device 18, air flow energy by gas circuit groove 20 at the second suction port B and the second air outlet B ' or circulate between the second air outlet B ' and relief opening 19.Spool chamber spacer 24 is three, and corresponding relief opening 19, second suction port B and the second air outlet B ' is arranged respectively.Spool chamber spacer 24 offers vent, and vent can make the gas port of spool chamber spacer 24 correspondence and the space UNICOM of spool chamber spacer 24 inner radius, is provided with valve core seal ring 23 between spool chamber spacer 24 and with lower valve body.One end of Returnning spring 17 holds out against spool 15, and the other end is fixed on lower valve body by holding out against nut, holds out against the pressure that nut can regulate Returnning spring 17.
When power take-off control cylinder 7 works, gas circulates along the first suction port A and the first air outlet A ', make the pressure increase above piston 16, piston 16 overcomes spring band movable valve plug 15 and moves down, valve body second air outlet B ' is relative with valve core sealing device 18 with the spool gas circuit groove between relief opening 19 at present for this, second air outlet B ' is communicated with relief opening 19, spool axis body between second suction port B and the second air outlet B ' and valve core sealing device 18 are combined closely, so high-grade air-flow does not circulate by the second suction port B and the second air outlet B ', and then the protection realized auxiliary box synchronizer.When power take-off control cylinder 7 does not work, spool 15 returns to home position under the drive of Returnning spring 17, this spool gas circuit groove at present between valve body second suction port B and the second air outlet B ' is relative with valve core sealing device 18, second suction port B is communicated with the second air outlet B ', spool axis body between second air outlet B ' and relief opening 19 and valve core sealing device 18 are combined closely, so air-flow can circulate between the second suction port B and the second air outlet B '.
See Fig. 6 (a) and Fig. 6 (b), the utility model three-way valve 4 connects car load air pressure by power take-off valve control valve 3, the suction port of power take-off valve control valve 3 is connected with car load tracheae 2, the air outlet connecting tee valve 4 of power take-off valve control valve 3, power take-off valve control valve 3 connects power take-off valve 1, when a vehicle is started, Power supply makes power take-off valve 1 close, power take-off valve control valve 3 is energized, gas circuit is communicated with, and car load air pressure enters three-way valve 4 by car load tracheae 2 by power take-off valve control valve 3.Two suction ports of the utility model gas path control valve 5 respectively connecting tee valve 4 are given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder 6, an air outlet of gas path control valve 5 and the power taking suction port 12 of power take-off control cylinder 7 directly one-body molded, another air outlet connects the high-grade suction port 10 of secondary box of gearbox cylinder 6 by pipeline.
See Fig. 7, the utility model gas path control valve 5 suction port respectively connecting tee valve 4 is given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder 6, and two air outlets are all connected with the high-grade suction port 10 of secondary box of gearbox cylinder 6 with the power taking suction port 12 of power take-off control cylinder 7 by pipeline.
See Fig. 8, the utility model gas path control valve 5 suction port respectively connecting tee valve 4 is given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder 6, an air outlet of gas path control valve 5 is connected by pipeline with power taking suction port 12, and the high-grade suction port 10 of another air outlet and secondary box of gearbox cylinder 7 is directly one-body molded.
See Fig. 9, the suction port of the utility model gas path control valve 5 respectively connecting tee valve 4 is given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder 6, an air outlet of gas path control valve 5 and the neutral gear suction port 8 of secondary box of gearbox cylinder 6 directly one-body molded, another air outlet connects high-grade suction port 10 by pipeline.
See Figure 10, the utility model gas path control valve 5 suction port respectively connecting tee valve 4 is given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder 6, and two air outlets of gas path control valve 5 are all connected with high-grade suction port 10 with the neutral gear suction port 8 of secondary box of gearbox cylinder 6 by pipeline.
Gas path control valve 5 adopts gas control, hydraulic control, automatically controlled or mechanical displacement control.
In figure, in pipeline, black part submeter is shown with air-flow and passes through.
The utility model responds to power take-off work gas circuit by gas path control valve 5, namely by the neutral gear air inlet pipeline of secondary box of gearbox cylinder 6 or the atmospheric pressure state of power take-off control cylinder 7 air inlet pipeline, come connection or the disconnection of the high-grade gas circuit of controlled variator, in time there is air pressure in the neutral air inlet pipeline of secondary box of gearbox cylinder 6 or power take-off control cylinder 7 air inlet pipeline, illustrate that power take-off in working order, gas path control valve 5 can under this gas pressure the high-grade gas circuit of open slew device, secondary box of gearbox cannot shift to a higher gear; When power take-off does not work, speed changer normally switches high and low shift, realizes the protection to odd-side speed changer with this.Integration of the present utility model and versatility good, feasibility is high, be applicable to the speed changer of all odd-side band power take-offs, and only need increase gas path control valve in implementation process, need not change other designs, cost is low, risk is little, repacking is convenient, significantly can reduce auxiliary box synchronizer high-grade side fault, promote the quality of speed changer.
Claims (10)
1. the secondary box of gearbox synchronizer protective system with power take-off, is characterized in that: comprise the secondary box of gearbox cylinder (6) and power take-off control cylinder (7) that are connected with car load source of the gas through three-way valve (4); Described three-way valve (4) air inlet pipeline arranges power take-off valve (1), between three-way valve (4) and power take-off valve (1) or on any outlet pipe of three-way valve (4), is also provided with gas path control valve (5); The neutral gear suction port (8) of described secondary box of gearbox cylinder (6) is connected with three-way valve (4), the low-grade suction port (9) of secondary box of gearbox cylinder (6) is connected car load source of the gas with high-grade suction port (10), and the air inlet pipeline of high-grade suction port (10) is simultaneously by gas path control valve (5); When power take-off works, gas path control valve (5) cuts off high-grade suction port (10) air feed of secondary box of gearbox cylinder (6), even if shift to a higher gear also can not pass through air-flow by mistake, and then realizes the protection to auxiliary box synchronizer; When power take-off quits work, gas path control valve (5) recovers high-grade suction port (10) air feed of secondary box of gearbox cylinder (6).
2. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 1, is characterized in that: described gas path control valve (5) is arranged between three-way valve (4) and power take-off control cylinder (7); Gas path control valve (5) suction port respectively connecting tee valve (4) is given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder (6), and air outlet connects the power taking suction port (12) of power take-off control cylinder (7) and the high-grade suction port (10) of secondary box of gearbox cylinder (6) respectively.
3. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 2, it is characterized in that: an air outlet and the power taking suction port (12) of described gas path control valve (5) are directly one-body molded, another air outlet connects the high-grade suction port (10) of secondary box of gearbox cylinder (6) by pipeline; Or two air outlets of described gas path control valve (5) are all connected with the high-grade suction port (10) of secondary box of gearbox cylinder (6) with power taking suction port (12) by pipeline.
4. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 2; it is characterized in that: an air outlet of described gas path control valve (5) is connected by pipeline with power taking suction port (12), the high-grade suction port (10) of another air outlet and secondary box of gearbox cylinder (6) is directly one-body molded.
5. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 1; it is characterized in that: described gas path control valve (5) is arranged between three-way valve (4) and secondary box of gearbox cylinder (6); the suction port of gas path control valve (5) respectively connecting tee valve (4) is given vent to anger and the high-grade air inlet pipeline of secondary box of gearbox cylinder (6), and air outlet connects neutral gear suction port (8) and the high-grade suction port (10) of secondary box of gearbox cylinder (6) respectively.
6. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 5, it is characterized in that: an air outlet of described gas path control valve (5) and the neutral gear suction port (8) of secondary box of gearbox cylinder (6) directly one-body molded, another air outlet connects high-grade suction port (10) by pipeline; Or described gas path control valve (5) two air outlets are all connected with high-grade suction port (10) with the neutral gear suction port (8) of secondary box of gearbox cylinder (6) by pipeline.
7. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 1, is characterized in that: described gas path control valve (5) is arranged between three-way valve (4) and power take-off valve (1); Gas path control valve (5) suction port connects the high-grade air inlet pipeline of car load source of the gas and secondary box of gearbox cylinder (6) respectively, the high-grade suction port (10) of air outlet difference connecting tee valve (4) suction port and secondary box of gearbox cylinder (6).
8. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 1, is characterized in that: described gas path control valve (5) adopts gas control, hydraulic control, automatically controlled or mechanical displacement control.
9. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 1; it is characterized in that: the low-grade suction port (9) of described secondary box of gearbox cylinder (6) is connected car load source of the gas with high-grade suction port (10) through secondary box of gearbox control valve (11), the air inlet pipeline between the high-grade suction port (10) of secondary box of gearbox cylinder (6) and secondary box of gearbox control valve (11) is by gas path control valve (5).
10. the secondary box of gearbox synchronizer protective system of band power take-off according to claim 1, it is characterized in that: described gas path control valve (5) comprises the valve body (13) be made up of upper valve body and lower valve body, arranges valve body sealing device (14) between upper valve body and lower valve body; Described upper valve body comprises the piston cavity being provided with piston (16), and upper valve body offers the first suction port (A) and the first air outlet (A '), lower valve body has the inner chamber of installation spool (15), lower valve body is separated by valve core sealing device (18), offer relief opening (19) respectively, the second suction port (B) and the second air outlet (B '); Described spool (15) is for offering the axis body of two gas circuit grooves (20), and spool (15) axis body and valve core sealing device (18) are combined closely; Described spool (15) upper-end surface coordinates with piston (16), lower end surface arranges Returnning spring (17), when spool (15) move to gas circuit groove (20) relative with valve core sealing device (18) time, air-flow is circulated between the second suction port (B) and the second air outlet (B ') or the second air outlet (B ') and relief opening (19) by gas circuit groove (20); Air inlet pipeline between the high-grade suction port (10) of described secondary box of gearbox cylinder (6) and secondary box of gearbox control valve (11) is connected to the second suction port (B) and the second air outlet (B ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168729.XU CN204592270U (en) | 2015-03-24 | 2015-03-24 | A kind of secondary box of gearbox synchronizer protective system with power take-off |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168729.XU CN204592270U (en) | 2015-03-24 | 2015-03-24 | A kind of secondary box of gearbox synchronizer protective system with power take-off |
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| CN204592270U true CN204592270U (en) | 2015-08-26 |
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| CN201520168729.XU Active CN204592270U (en) | 2015-03-24 | 2015-03-24 | A kind of secondary box of gearbox synchronizer protective system with power take-off |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747706A (en) * | 2015-03-24 | 2015-07-01 | 陕西法士特汽车传动集团有限责任公司 | Transmission auxiliary box synchronizer protection system with power takeoff |
| CN105387199A (en) * | 2015-12-16 | 2016-03-09 | 江阴戎辉机械设备制造有限公司 | Power takeoff gear engagement protecting device |
| CN108626389A (en) * | 2018-06-07 | 2018-10-09 | 陕西法士特汽车传动集团有限责任公司 | A kind of commercial car rear power takeoff work protection system |
| CN109282031A (en) * | 2018-10-31 | 2019-01-29 | 西安法士特汽车传动有限公司 | A kind of mutual blocking valve of vehicular transmission major-minor case, interlock system and interlock method |
-
2015
- 2015-03-24 CN CN201520168729.XU patent/CN204592270U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747706A (en) * | 2015-03-24 | 2015-07-01 | 陕西法士特汽车传动集团有限责任公司 | Transmission auxiliary box synchronizer protection system with power takeoff |
| CN104747706B (en) * | 2015-03-24 | 2017-07-28 | 陕西法士特汽车传动集团有限责任公司 | A kind of secondary box of gearbox synchronizer protection system with power takeoff |
| CN105387199A (en) * | 2015-12-16 | 2016-03-09 | 江阴戎辉机械设备制造有限公司 | Power takeoff gear engagement protecting device |
| CN108626389A (en) * | 2018-06-07 | 2018-10-09 | 陕西法士特汽车传动集团有限责任公司 | A kind of commercial car rear power takeoff work protection system |
| CN108626389B (en) * | 2018-06-07 | 2023-11-14 | 陕西法士特汽车传动集团有限责任公司 | Rear power takeoff work protection system of commercial vehicle |
| CN109282031A (en) * | 2018-10-31 | 2019-01-29 | 西安法士特汽车传动有限公司 | A kind of mutual blocking valve of vehicular transmission major-minor case, interlock system and interlock method |
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