CN204553766U - A kind of heavy-duty automotive speed changer of major-minor case structure - Google Patents

A kind of heavy-duty automotive speed changer of major-minor case structure Download PDF

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Publication number
CN204553766U
CN204553766U CN201420791190.9U CN201420791190U CN204553766U CN 204553766 U CN204553766 U CN 204553766U CN 201420791190 U CN201420791190 U CN 201420791190U CN 204553766 U CN204553766 U CN 204553766U
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CN
China
Prior art keywords
valve
grade
low
communicated
speed changer
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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.)
Withdrawn - After Issue
Application number
CN201420791190.9U
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Chinese (zh)
Inventor
孙鹏
费逢宇
孙春艳
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Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
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Priority to CN201420791190.9U priority Critical patent/CN204553766U/en
Application granted granted Critical
Publication of CN204553766U publication Critical patent/CN204553766U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model relates to a kind of heavy-duty automotive speed changer of major-minor case structure, on the basis of existing major-minor case structure heavy-duty automotive speed changer, adopt brand-new gas circuit, cancel double H valve, increase gas path control valve and single H sluice valve co-controlling gas circuit, gas path control valve is adopted to control the break-make of high-grade gas circuit, the conversion of high and low shift is controlled by single H sluice valve, and throw over switch is integrated in preselector valve, thus make operation easier to be clear, greatly reduce the probability of misoperation of putting into gear, the structure of Effector can be simplified simultaneously, reduce assembling difficulty.The utility model is mainly used in 8 speed transmissions and 9 speed transmissions of claimant, greatly improves the travelling comfort of gearshift, and the reliability handled.

Description

A kind of heavy-duty automotive speed changer of major-minor case structure
Technical field
The utility model relates to a kind of heavy-duty automotive speed changer adopting major-minor case structure.
Background technique
Along with the development of heavy-duty car industry, and Market competition, main engine factory are to the reliability of gearbox, and the requirement of handling comfort is also more and more higher.
Tradition gas circuit, the break-make of gas circuit and the conversion of high and low shift are all controlled by double H valve, and air valve structure is complicated, selects gear shift stroke also inconsistent, easily causes situations such as by mistake putting into gear.
Tradition gas circuit has two neutral gear positions, and corresponding upper cover guide block position and gear arrangement are as Fig. 5.Because guide block corresponding position is as two capitalizations " H ", being referred to as " two H handles " of our image, but easily put into gear in this kind of mode gear selecting process, cause the gearbox even damage of car load. by mistake
Therefore, be badly in need of one and can improve gearbox easy operation, the heavy-duty automotive speed changer of the major-minor case structure of travelling comfort and reliability.
Model utility content
The utility model object is to provide a kind of raising gearbox easy operation, the heavy-duty automotive speed changer of the major-minor case structure of travelling comfort and reliability.
Technical solution of the present utility model is:
A kind of heavy-duty automotive speed changer of major-minor case structure, comprise main tank, odd-side, air filtering regulator 20, gas path control valve 12, high-grade tracheae 18, low-grade tracheae 17, described odd-side comprises auxiliary box cylinder 19, and its special way is: also comprise single H sluice valve 13 and preselector valve 16; Described air filtering regulator outlet is communicated with gas path control valve entrance and preselector valve suction tude; Described preselector valve is for controlling the break-make of gas circuit between the outlet of air filtering regulator and single H sluice valve air inlet buffer area 1; Described gas path control valve air outlet when gear selecting is communicated with the entrance 3 of single H sluice valve; The pin of described gas path control valve is promoted by shifting block thus closes the gas passageway leading to single H sluice valve after speed changer engage a gear; Described single H sluice valve comprises the first valve body 22, be arranged on the air inlet buffer area 1 in the first valve body and piston cavity, the piston 5 be successively set in piston cavity, spool 8 and Returnning spring 21, be arranged on the valve pocket 9 between the first valve body and spool, be arranged on the low-grade exhaust port 2 on the first valve body wall, entrance 3, high-grade exhaust port 4, low-grade inlet hole 6, high-grade inlet hole 7; Described air inlet buffer area 1 is communicated with the steam outlet pipe 15 of preselector valve; Described piston one end contacts with air inlet buffer area, and the described piston the other end is connected with one end of spool, and described Returnning spring is arranged between the spool the other end and piston cavity end face; When described Returnning spring is positioned at original position, under spool 8 and the common seal action of valve pocket 9, entrance 3 is communicated with high-grade inlet hole 7, and low-grade inlet hole 6 is communicated with low-grade exhaust port 2, and high-grade exhaust port 4 is closed; During described Returnning spring compression, under spool 8 and the common seal action of valve pocket 9, entrance 3 is communicated with low-grade inlet hole 6, and high-grade inlet hole 7 is communicated with high-grade exhaust port 4, and low-grade exhaust port 2 is closed; Described high-grade inlet hole 7 is communicated with the rodless cavity of auxiliary box cylinder 19 by high-grade tracheae 18; Described low-grade inlet hole 6 is communicated with the rod chamber of auxiliary box cylinder 19 by low-grade tracheae 17.
Above-mentioned gas path control valve comprises the second valve body 23, the pin chamber be arranged in the second valve body, the Returnning spring 24 be arranged in pin chamber, stuffing box gland 25 and pin 26, be arranged on entrance 27 on the second valve body and outlet 28; Described stuffing box gland is arranged between pin chamber wall and pin, and described Returnning spring is arranged between pin one end and pin chamber interior edge face; The described pin the other end stretches out the second valve body and contacts with shifting block; When described Returnning spring is positioned at original position, entrance and exit is communicated with; When described Returnning spring is compressed by shifting block, entrance and exit disconnects.
Above-mentioned preselector valve comprises the 3rd valve body, suction tude 14, steam outlet pipe 15 and stretches out the high and low shift switch 29 of the 3rd valve body; When described high and low shift switch is allocated to high-grade position, suction tude and steam outlet pipe disconnect; When described high and low shift switch is allocated to low gear position, suction tude is communicated with steam outlet pipe.
Above-mentioned main tank can be 4 groups of gears, and above-mentioned odd-side is 2 groups of gears, is 4X2 structure heavy-duty automotive speed changer.
Above-mentioned main tank can also be 5 groups of gears, and above-mentioned odd-side is 2 groups of gears, is 5X2 structure heavy-duty automotive speed changer, and has locked a gear.
Advantage of the present utility model:
The utility model adopts brand-new gas circuit, cancel double H valve, increase gas path control valve and single H sluice valve co-controlling gas circuit, adopt gas path control valve to control the break-make of high-grade gas circuit, controlled the conversion of high and low shift by single H sluice valve, and throw over switch is integrated in preselector valve, thus make operation easier to be clear, greatly reduce the probability of misoperation of putting into gear, the structure of Effector can be simplified simultaneously, reduce assembling difficulty.
The utility model greatly improves the travelling comfort of gearshift, and the reliability handled.
Accompanying drawing explanation
Schematic diagram of gas circuit when Fig. 1 is the utility model choosing low grade;
Schematic diagram of gas circuit when Fig. 2 is the utility model choosing top grade;
Fig. 3 is the schematic diagram that the utility model list H sluice valve works in high-grade district;
Fig. 4 is the schematic diagram that the utility model list H sluice valve works in low-grade district;
Fig. 5 is traditional design upper cover guide block and gear schematic diagram;
Fig. 6 is the utility model upper cover guide block and gear schematic diagram;
Gas control valve schematic diagram when Fig. 7 is the utility model gear selecting;
Fig. 8 is gas control valve schematic diagram after the utility model engage a gear;
Reference character: 1-air inlet buffer area; The low-grade exhaust port of 2-; 3-entrance; The high-grade exhaust port of 4-; 5-piston; The low-grade inlet hole of 6-; The high-grade inlet hole of 7-; 8-spool; 9-valve pocket; 10-shifting block; 12-gas path control valve; The mono-H sluice valve of 13-; 14-suction tude; 15-steam outlet pipe; 16-preselector valve; The low-grade tracheae of 17-; The high-grade tracheae of 18-; 19-auxiliary box cylinder; 20-air filtering regulator; 21-Returnning spring; 22-first valve body; 23-second valve body; 24-Returnning spring; 25-stuffing box gland; 26-pin; 27-entrance; 28-exports; 29-high and low shift switch.
Embodiment
As depicted in figs. 1 and 2, the heavy-duty automotive speed changer of the utility model major-minor case structure, comprises main tank, odd-side, air filtering regulator, gas path control valve, high-grade tracheae, low-grade tracheae, auxiliary box cylinder, preselector valve, gas path control valve.
Single H sluice valve comprises the first valve body, is arranged on the spool in the first valve body and valve pocket, is arranged on the piston in the first valve body and Returnning spring, be arranged on the low-grade exhaust port on the first valve body wall, entrance, high-grade exhaust port, low-grade inlet hole, high-grade inlet hole; Returnning spring and piston cavity are separately positioned on the two ends of piston.When Returnning spring is positioned at original position, seal ring and the common seal action of valve pocket, entrance is communicated with high-grade inlet hole, and low-grade inlet hole is communicated with low-grade exhaust port, and high-grade exhaust port is closed; Under the control of preselector valve, by air inlet buffer area gas push spool, during Compress Spring, entrance is communicated with low-grade inlet hole, and high-grade inlet hole is communicated with high-grade exhaust port, and low-grade exhaust port is closed.Single H sluice valve imports the low-grade district of auxiliary box cylinder or high-grade district by after the control gas gating of gas path control valve, is derived by the gas in the high-grade district of auxiliary box cylinder or low-grade district simultaneously.
The outlet of air filtering regulator is communicated with gas path control valve entrance and preselector valve entrance; Gas path control valve outlet is communicated with the entrance of single H sluice valve; During gear selecting, the pin of gas path control valve is at free position, and the single H sluice valve of gas path control valve UNICOM, to shift gears, after speed changer is put into gear, the pin of gas path control valve is promoted by shifting block thus closes the gas passageway leading to single H sluice valve.
Gas path control valve comprises the second valve body, the piston cavity be arranged in the second valve body, the piston rod be arranged in piston cavity, be arranged in piston cavity and the Returnning spring be connected with one end of piston rod, the entrance and exit be arranged on piston cavity wall; The other end of piston rod stretches out the second valve body; When Returnning spring is positioned at original position, entrance and exit is communicated with; During Returnning spring compression, entrance and exit disconnects.
Preselector valve is arranged in lever, and it comprises entrance, exports and stretches out the high and low shift switch of lever; When high and low shift switch is allocated to high-grade position, entrance and exit disconnects; When high and low shift switch is allocated to low gear position, entrance and exit is communicated with.
The utility model can be used for 8 speed transmissions of claimant, and main tank is 4 groups of gears, and odd-side is 2 groups of gears.
The utility model also can be used for 9 speed transmissions of claimant, and main tank is 5 groups of gears, and odd-side is 2 groups of gears, and has locked a gear.
The utility model principle:
Gas circuit of the present utility model is arranged, eliminates original double H valve and changes single H sluice valve into, newly-increased gas path control valve, and is connected with single H sluice valve by gas path control valve with tracheae.Carried out the conversion of high and low shift gas circuit by the high and low shift switch control rule list H sluice valve in preselector valve, gas path control valve controls the break-make of gas in tracheae, and realizes backset, namely prevents speed changer high and low shift from freely switching; Thus realize the conversion of speed changer high and low shift.
The utility model functional characteristics:
1. single H Principles of Air Valves figure is as Fig. 3 and Fig. 4, it is high-grade position shown in Fig. 3, without gas in air inlet buffer area (being connected with preselector valve), gas enters high-grade district by entrance, high-grade inlet hole successively, promotes auxiliary box cylinder piston driving shift fork and arrives high-grade position; During drag-down, the air inlet of air inlet buffer area, promotes piston and moves right, make gas enter low-grade district by entrance, low-grade inlet hole, promotes auxiliary box cylinder piston driving shift fork and arrives low gear position.As can be seen from the figure, high-grade inlet hole and low-grade inlet hole effectively can be separated during pistons work, ensure that gas circuit can not be operated in top grade and low grade simultaneously, thus realize the interlocking function of high and low shift, gas circuit trend in low-grade district as shown in Figure 4, is no longer set forth.
2. transmissions improved of the present utility model is 1 neutral gear position, corresponding upper cover guide block position is as Fig. 6, because guide block corresponding position is as same capitalization " H ", image is called " single H handles ", this kind of mode is controlled the conversion of high and low shift by the high and low shift switch in preselector valve, thus greatly reduces the probability of by mistake putting into gear.
3. the utility model adopts gas path control valve to control the break-make of gas of shifting gears, misoperation after can effectively preventing from putting into gear.To hang certain top grade (see Fig. 1), selecting in high-grade process, gas path control valve connects (see Fig. 7), the air inlet of single H sluice valve, stir the driving switch of preselector valve to high-grade, be linked into top grade, after putting into gear, gas path control valve disconnects (see Fig. 8), now, single H sluice valve ingress is passed through without gas, if high and low shift switch is stirred in driver's misoperation, pass through without gas in high and low shift gas circuit, low-grade district cannot be linked into, thus misoperation after effectively preventing from putting into gear, ensure gearbox and car load safety.Choosing, drag-down district in like manner, no longer set forth.
Be linked into 5 grades (top grade) by 4 grades (low grades) to operate: let slip the clutch, is placed in neutral gear position by the lever at preselector valve place, and high and low shift switch is allocated to high-grade position, and be linked into 5 grades, shift process terminates.Other gear working principles and conventional construction similar, no longer set forth.

Claims (5)

1. the heavy-duty automotive speed changer of a major-minor case structure, comprise main tank, odd-side, air filtering regulator (20), gas path control valve (12), high-grade tracheae (18), low-grade tracheae (17), described odd-side comprises auxiliary box cylinder (19), it is characterized in that:
Also comprise single H sluice valve (13) and preselector valve (16);
Described air filtering regulator outlet is communicated with gas path control valve entrance and preselector valve suction tude;
Described preselector valve is for controlling the break-make of gas circuit between the outlet of air filtering regulator and single H sluice valve air inlet buffer area (1);
Described gas path control valve air outlet when gear selecting is communicated with the entrance (3) of single H sluice valve; The pin of described gas path control valve is promoted by shifting block thus closes the gas passageway leading to single H sluice valve after speed changer engage a gear;
Described single H sluice valve comprises the first valve body (22), be arranged on the air inlet buffer area (1) in the first valve body and piston cavity, the piston (5) be successively set in piston cavity, spool (8) and Returnning spring (21), be arranged on the valve pocket (9) between the first valve body and spool, be arranged on the low-grade exhaust port (2) on the first valve body wall, entrance (3), high-grade exhaust port (4), low-grade inlet hole (6), high-grade inlet hole (7); Described air inlet buffer area (1) is communicated with the steam outlet pipe (15) of preselector valve; Described piston one end contacts with air inlet buffer area, and the described piston the other end is connected with one end of spool, and described Returnning spring is arranged between the spool the other end and piston cavity end face;
When described Returnning spring is positioned at original position, under spool (8) and the common seal action of valve pocket (9), entrance (3) is communicated with high-grade inlet hole (7), low-grade inlet hole (6) is communicated with low-grade exhaust port (2), and high-grade exhaust port (4) is closed;
During described Returnning spring compression, under spool (8) and the common seal action of valve pocket (9), entrance (3) is communicated with low-grade inlet hole (6), high-grade inlet hole (7) is communicated with high-grade exhaust port (4), and low-grade exhaust port (2) is closed;
Described high-grade inlet hole (7) is communicated with by the rodless cavity of high-grade tracheae (18) with auxiliary box cylinder (19);
Described low-grade inlet hole (6) is communicated with by the rod chamber of low-grade tracheae (17) with auxiliary box cylinder (19).
2. the heavy-duty automotive speed changer of major-minor case structure according to claim 1, is characterized in that:
Described gas path control valve comprises the second valve body (23), the pin chamber be arranged in the second valve body, the Returnning spring (24) be arranged in pin chamber, stuffing box gland (25) and pin (26), be arranged on entrance (27) on the second valve body and outlet (28); Described stuffing box gland is arranged between pin chamber wall and pin, and described Returnning spring is arranged between pin one end and pin chamber interior edge face; The described pin the other end stretches out the second valve body and contacts with shifting block; When described Returnning spring is positioned at original position, entrance and exit is communicated with; When described Returnning spring is compressed by shifting block, entrance and exit disconnects.
3. the heavy-duty automotive speed changer of major-minor case structure according to claim 1 and 2, is characterized in that:
Described preselector valve comprises the 3rd valve body, suction tude (14), steam outlet pipe (15) and stretches out the high and low shift switch (29) of the 3rd valve body; When described high and low shift switch is allocated to high-grade position, suction tude and steam outlet pipe disconnect; When described high and low shift switch is allocated to low gear position, suction tude is communicated with steam outlet pipe.
4. the heavy-duty automotive speed changer of major-minor case structure according to claim 3, is characterized in that: described main tank is 4 groups of gears, and described odd-side is 2 groups of gears, is 4X2 structure heavy-duty automotive speed changer.
5. the heavy-duty automotive speed changer of major-minor case structure according to claim 3, is characterized in that: described main tank is 5 groups of gears, and described odd-side is 2 groups of gears, is 5X2 structure heavy-duty automotive speed changer, and has locked a gear.
CN201420791190.9U 2014-12-13 2014-12-13 A kind of heavy-duty automotive speed changer of major-minor case structure Withdrawn - After Issue CN204553766U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420791190.9U CN204553766U (en) 2014-12-13 2014-12-13 A kind of heavy-duty automotive speed changer of major-minor case structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420791190.9U CN204553766U (en) 2014-12-13 2014-12-13 A kind of heavy-duty automotive speed changer of major-minor case structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500779A (en) * 2014-12-13 2015-04-08 陕西法士特齿轮有限责任公司 Heavy truck transmission with main and auxiliary box structures and single-H gate valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500779A (en) * 2014-12-13 2015-04-08 陕西法士特齿轮有限责任公司 Heavy truck transmission with main and auxiliary box structures and single-H gate valve
CN104500779B (en) * 2014-12-13 2017-08-25 陕西法士特齿轮有限责任公司 The heavy-duty automotive speed changer and list H sluice valves of a kind of major-minor case structure

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GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20150812

Effective date of abandoning: 20170825