Front auxiliary box air supply device, gear selecting and shifting executing mechanism and integrated AMT

Abstract

The utility model discloses a front auxiliary box air supply device, a gear selecting and shifting execution mechanism and an integrated AMT, the front auxiliary box air supply device comprises a front auxiliary box air supply hollow positioning pin, and one end of the front auxiliary box air supply hollow positioning pin is connected with one end of a high-pressure air supply channel in the gear selecting and shifting execution mechanism to take air; and the other end of the front auxiliary box air supply hollow positioning pin is connected with a front auxiliary box of the integrated AMT for air supply. According to the device, a high-pressure air supply channel in the GSU is innovatively connected with a front auxiliary box air supply channel on the front end cover of the gearbox through a hollow positioning pin, supply of an air source of the front auxiliary box is achieved, and an electromagnetic valve related to the front auxiliary box is externally hung outside the GSU, integrated on the front end cover of the gearbox and connected with the GSU through an electric control wire harness, so that unified control over the GSU is achieved; and the universality of parts is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical automatic transmissions, and relates to a gear shifting actuator, specifically to a front auxiliary gearbox air supply device, a gear shifting actuator, and an integrated AMT. Background Technology

[0002] With the increasing popularity of automated manual transmissions (AMT) in commercial vehicles in China, the use of AMT systems has greatly reduced the operational intensity of drivers. Currently, the mainstream AMT control systems in China all adopt electro-pneumatic actuators, which greatly reduces the cost of using AMT and improves the reliability of AMT systems.

[0003] Most mainstream international AMTs adopt an integrated design, which integrates the transmission controller, shift actuator, and some sensors, with a centrally located clutch actuator. Compared to modular external AMTs, integrated AMTs offer stable reliability, higher economy, and applicability to various operating conditions.

[0004] However, the existing two-stage integrated AMT includes a main box and a rear auxiliary box. The gear shifting actuator of the two-stage integrated AMT is difficult to supply air to the front auxiliary box, and the gear shifting actuator lacks versatility. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a front and auxiliary air supply device, a gear shifting actuator and an integrated AMT, so as to solve the technical problem that the existing integrated AMT only has two stages and cannot realize a three-stage integrated AMT.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A front and auxiliary gearbox air supply device includes a front and auxiliary gearbox air supply hollow positioning pin. One end of the front and auxiliary gearbox air supply hollow positioning pin is connected to one end of the high-pressure air supply channel in the gear shifting actuator to draw air; the other end of the front and auxiliary gearbox air supply hollow positioning pin is connected to the front and auxiliary gearbox of the integrated AMT to supply air.

[0008] This utility model also has the following technical features:

[0009] Specifically, the integrated AMT includes a gearbox housing, and a front auxiliary gearbox air supply positioning pin hole is provided on the side of the gearbox housing, and a front auxiliary gearbox air supply hollow positioning pin is provided in the front auxiliary gearbox high pressure air positioning pin hole.

[0010] Specifically, the other end of the hollow positioning pin for the front auxiliary box is connected to the high-pressure air supply channel on the left side of the front auxiliary box for air supply; the other end of the hollow positioning pin for the front auxiliary box is also connected to the high-pressure air supply channel on the right side of the front auxiliary box for air supply.

[0011] Specifically, the front auxiliary box includes a front auxiliary box electrical unit, which includes a front auxiliary box gear shifting cylinder. The front auxiliary box gear shifting cylinder is connected to the first air outlet of the left-side two-position three-way solenoid valve of the front auxiliary box.

[0012] The air inlet of the two-position three-way solenoid valve on the left side of the front auxiliary box is connected to one end of the high-pressure air supply channel on the left side of the front auxiliary box, and the other end of the high-pressure air supply channel on the left side of the front auxiliary box is connected to the other end of the hollow positioning pin for air supply in the front auxiliary box to draw air.

[0013] The second air outlet of the two-position three-way solenoid valve on the left side of the front auxiliary box is connected to the outside atmosphere.

[0014] The aforementioned front auxiliary gearbox shift cylinder is also connected to the first air outlet of the two-position three-way solenoid valve on the right side of the front auxiliary gearbox.

[0015] The air inlet of the two-position three-way solenoid valve on the right side of the front auxiliary box is connected to one end of the high-pressure air supply channel on the right side of the front auxiliary box, and the other end of the high-pressure air supply channel on the right side of the front auxiliary box is connected to the other end of the hollow positioning pin for air supply in the front auxiliary box to draw air.

[0016] The second air outlet of the two-position three-way solenoid valve on the right side of the front auxiliary box is connected to the outside atmosphere.

[0017] Specifically, the gearbox housing is equipped with the gear shifting actuator; the gear shifting actuator also includes a mechanical pressure regulating valve whose air inlet is connected to the high-pressure air source in the integrated AMT, and whose air outlet is connected to the other end of the high-pressure air supply channel.

[0018] This utility model also protects a gear shifting actuator, including the front auxiliary box air supply device as described above.

[0019] This utility model also protects an integrated AMT, including the gear shifting actuator as described above.

[0020] Specifically, the integrated AMT is a three-section integrated AMT; the three-section integrated AMT is an AMT that integrates a front auxiliary box, a main box, and a rear auxiliary box.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] (I) The innovative device in this utility model connects the high-pressure air supply channel inside the GSU and the front auxiliary box air supply channel on the front cover of the gearbox through a hollow positioning pin, thereby realizing the supply of air source to the front auxiliary box. The solenoid valve related to the front auxiliary box is externally mounted to the GSU and integrated on the front cover of the gearbox. It is connected to the GSU through the electronic control wiring harness, thereby realizing the unified control of the GSU and increasing the versatility of the parts.

[0023] (II) The device in this utility model is based on the gear selector actuator (GSU) of a two-stage integrated AMT. A hollow positioning pin is used at the positioning pin hole to increase the high-pressure air passage. The high-pressure gas is guided to the air supply passage of the front cover of the gearbox through the hollow positioning pin. The front cover integrates the gear shift cylinder of the front auxiliary gearbox and the solenoid valve related to the front auxiliary gearbox. The air supply pipeline is connected to the air inlet end of the solenoid valve related to the front auxiliary gearbox, realizing a universal GSU for the front auxiliary gearbox, the main gearbox and the rear auxiliary gearbox. This universal GSU can provide a basis for the realization of a three-stage integrated AMT, making it possible to develop AMTs with more gears.

[0024] (III) The device in this utility model can use a two-stage integrated AMT GSU to realize the control of a three-stage integrated AMT. The actuator of the front auxiliary box is integrated on the front cover, which greatly improves the product reliability and mechanical design aesthetics.

[0025] (IV) The device in this utility model solves the problem of the arrangement of the integrated AMT control carrier, thereby realizing the normal coordinated operation of the electro-pneumatic control system, enhancing the versatility of the GSU, reducing the production cost of the integrated AMT, and improving economic efficiency. Attached Figure Description

[0026] Figure 1 A schematic diagram of the front auxiliary air supply device.

[0027] Figure 2 This is a schematic diagram of the air supply system for a three-section integrated AMT.

[0028] Figure 3 This is a schematic diagram of the gas supply principle for a three-stage integrated AMT.

[0029] Figure 4 This is a schematic diagram of the air supply principle for the front cover of the gearbox.

[0030] The labels in the diagram represent the following: 1-High-pressure air source, 2-Mechanical pressure regulating valve, 3-High-pressure air supply channel, 4-Front auxiliary gearbox electrical unit, 5-Central clutch actuator electrical unit, 6-Intermediate shaft brake unit, 7-Gear shifting electrical unit, 8-Gear selection electrical unit, 9-Rear auxiliary gearbox electrical unit, 10-Gearbox housing, 11-Front auxiliary gearbox air supply positioning pin hole, 12-Front auxiliary gearbox air supply hollow positioning pin, 13-Air filter element, 14-Gearbox front cover.

[0031] 401 - Front auxiliary gearbox shift cylinder; 402 - Front auxiliary gearbox left side two-position three-way solenoid valve; 403 - Front auxiliary gearbox left side high-pressure air supply channel; 404 - Front auxiliary gearbox right side two-position three-way solenoid valve; 405 - Front auxiliary gearbox right side high-pressure air supply channel.

[0032] 501 - Cylinder of the central clutch actuator; 502 - Two-way, two-position air intake valve of the central clutch; 503 - High-pressure air supply fast channel of the central clutch; 504 - Two-way, two-position air intake slow valve of the central clutch; 505 - High-pressure air supply slow channel of the central clutch; 506 - Two-way, two-position air exhaust fast valve of the central clutch; 507 - Two-way, two-position air exhaust slow valve of the central clutch; 508 - Air supply port of the central clutch actuator.

[0033] 601 - Intermediate shaft brake cylinder, 602 - Intermediate shaft brake inlet solenoid valve, 603 - Intermediate shaft brake high-pressure air supply channel, 604 - Intermediate shaft brake exhaust solenoid valve, 605 - Intermediate shaft brake air supply port.

[0034] 701 - Gear shift cylinder; 702 - Left side two-position three-way solenoid valve for gear shift; 703 - Left side high-pressure air supply channel for gear shift; 704 - Right side two-position three-way solenoid valve for gear shift; 705 - Right side high-pressure air supply channel for gear shift.

[0035] 801 - Gear selector cylinder; 802 - Left-side two-position three-way solenoid valve for gear selector; 803 - Left-side high-pressure air supply channel for gear selector; 804 - Right-side two-position three-way solenoid valve for gear selector; 805 - Right-side high-pressure air supply channel for gear selector.

[0036] 901 - Rear auxiliary box cylinder; 902 - Rear auxiliary box left side two-position three-way solenoid valve; 903 - Rear auxiliary box left side high-pressure air supply channel; 904 - Rear auxiliary box right side two-position three-way solenoid valve; 905 - Rear auxiliary box right side high-pressure air supply channel.

[0037] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, all equipment and components in this utility model are based on existing technologies. For example, the two-position two-way solenoid valve is a known two-position two-way solenoid valve, and the central clutch actuator is a known central clutch actuator.

[0039] In this invention, SV refers to a solenoid valve.

[0040] In this utility model, 2 / 2SV refers to a two-position two-way solenoid valve; 3 / 2SV refers to a two-position three-way solenoid valve.

[0041] Following the above technical solution, the following are specific embodiments of this utility model. It should be noted that this utility model is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model.

[0042] Example 1:

[0043] This embodiment provides a front and auxiliary air supply device, such as... Figure 1 and Figure 2 As shown, it includes a front auxiliary box air supply hollow positioning pin 12. One end of the front auxiliary box air supply hollow positioning pin 12 is connected to one end of the high-pressure air supply channel 3 in the gear shifting actuator to obtain air; the other end of the front auxiliary box air supply hollow positioning pin 12 is connected to the front auxiliary box of the integrated AMT to supply air.

[0044] As a preferred embodiment of this invention, such as Figure 1 As shown, the integrated AMT includes a gearbox housing 10. A front auxiliary gearbox air supply positioning pin hole 11 is provided on the side of the gearbox housing 10, and a front auxiliary gearbox air supply hollow positioning pin 12 is provided in the front auxiliary gearbox high pressure air positioning pin hole 11.

[0045] As a preferred embodiment of this invention, such as Figure 3 As shown, the other end of the hollow positioning pin 12 for the front auxiliary box is connected to the high-pressure air supply channel 403 on the left side of the front auxiliary box for air supply; the other end of the hollow positioning pin 12 for the front auxiliary box is also connected to the high-pressure air supply channel 405 on the right side of the front auxiliary box for air supply.

[0046] As a preferred embodiment of this invention, such as Figure 3 As shown, the front auxiliary box includes a front auxiliary box electrical unit 4, which includes a front auxiliary box gear shifting cylinder 401. The front auxiliary box gear shifting cylinder 401 is connected to the first air outlet of the two-position three-way solenoid valve 402 on the left side of the front auxiliary box.

[0047] like Figure 3 As shown, the air inlet of the two-position three-way solenoid valve 402 on the left side of the front auxiliary box is connected to one end of the high-pressure air supply channel 403 on the left side of the front auxiliary box, and the other end of the high-pressure air supply channel 403 on the left side of the front auxiliary box is connected to the other end of the air supply hollow positioning pin 12 of the front auxiliary box to draw air.

[0048] The second air outlet of the two-position three-way solenoid valve 402 on the left side of the front auxiliary box is connected to the outside atmosphere.

[0049] like Figure 3 As shown, the front auxiliary gearbox shift cylinder 401 is also connected to the first air outlet of the two-position three-way solenoid valve 404 on the right side of the front auxiliary gearbox.

[0050] like Figure 3As shown, the air inlet of the two-position three-way solenoid valve 404 on the right side of the front auxiliary box is connected to one end of the high-pressure air supply channel 405 on the right side of the front auxiliary box, and the other end of the high-pressure air supply channel 405 on the right side of the front auxiliary box is connected to the other end of the air supply hollow positioning pin 12 of the front auxiliary box to draw air.

[0051] The second air outlet of the two-position three-way solenoid valve 404 on the right side of the front auxiliary box is connected to the outside atmosphere.

[0052] In this embodiment, the intake and exhaust of the front auxiliary gearbox shift cylinder 401 are controlled by the left side two-position three-way solenoid valve 402 and the right side two-position three-way solenoid valve 403, thereby performing the shifting action of the front auxiliary gearbox.

[0053] As a preferred embodiment of this invention, such as Figure 2 As shown, a gear shifting actuator is provided inside the gearbox housing 10; the gear shifting actuator also includes a mechanical pressure regulating valve 2 whose air inlet is connected to the high-pressure air source 1 in the integrated AMT, and the air outlet of the mechanical pressure regulating valve 2 is connected to the other end of the high-pressure air supply channel 3.

[0054] In this embodiment, as Figure 2 As shown, an air filter element 13 is also installed between the high-pressure air source 1 and the air inlet of the mechanical pressure regulating valve 2.

[0055] In this embodiment, the mechanical pressure regulating valve 2 adjusts the high-pressure gas output from the high-pressure gas source 1 to the normal operating high pressure of the gear shifting actuator.

[0056] Example 2:

[0057] This embodiment provides a gear shifting actuator, including a front and auxiliary gearbox air supply device, which adopts the front and auxiliary gearbox air supply device given in Embodiment 1.

[0058] In this embodiment, the main structure of the gear shifting actuator adopts a commonly known gear shifting actuator.

[0059] Example 3:

[0060] This embodiment provides an integrated AMT, including a gear shifting actuator. The gear shifting actuator includes a front and auxiliary gearbox air supply device, which adopts the front and auxiliary gearbox air supply device given in Embodiment 1.

[0061] In this embodiment, the main structure of the gear shifting actuator adopts a commonly known gear shifting actuator.

[0062] In this embodiment, the main structure of the front auxiliary box adopts a commonly known front auxiliary box.

[0063] In this embodiment, the main gearbox uses a commonly known main gearbox structure. The main gearbox includes a central clutch actuator, an intermediate shaft brake, gear engagement, and gear selection.

[0064] In this embodiment, the main structure of the rear auxiliary box adopts a commonly used rear auxiliary box.

[0065] In this embodiment, the three-section integrated AMT is an AMT that integrates the front auxiliary box, the main box, and the rear auxiliary box.

[0066] like Figure 3 As shown, the other end of the high-pressure air supply channel 3 is also connected to the electrical unit 5 of the central clutch actuator.

[0067] like Figure 3 As shown, the electrical unit 5 of the central clutch actuator includes a central clutch actuator cylinder 501, which is connected to the outlet of the central clutch two-position two-way intake quick valve 502.

[0068] like Figure 3 As shown, the air inlet of the central clutch two-position two-way air intake quick valve 502 is connected to one end of the central clutch high-pressure air supply quick channel 503, and the other end of the central clutch high-pressure air supply quick channel 503 is connected to the other end of the high-pressure air supply channel 3.

[0069] like Figure 3 As shown, the cylinder 501 of the central clutch actuator is also connected to the outlet of the two-position two-way intake slow valve 504 of the central clutch.

[0070] like Figure 3 As shown, the air inlet of the central clutch two-position two-way intake slow valve 504 is connected to one end of the central clutch high-pressure air supply slow channel 505, and the other end of the central clutch high-pressure air supply slow channel 505 is connected to the other end of the high-pressure air supply channel 3.

[0071] like Figure 3 As shown, the cylinder 501 of the central clutch actuator is also connected to the air inlet of the central clutch two-position two-way exhaust quick valve 506.

[0072] like Figure 3 As shown, the outlet of the central clutch two-position two-way exhaust quick valve 506 is connected to the outside atmosphere.

[0073] like Figure 3 As shown, the cylinder 501 of the central clutch actuator is also connected to the air inlet of the two-position two-way exhaust slow valve 507 of the central clutch.

[0074] like Figure 3As shown, the outlet of the central clutch two-position two-way exhaust slow valve 507 is connected to the outside atmosphere.

[0075] like Figure 3 As shown, the other end of the high-pressure air supply channel 3 is also connected to the intermediate shaft brake unit 6.

[0076] like Figure 3 As shown, the intermediate shaft brake unit 6 includes an intermediate shaft brake cylinder 601, which is connected to the outlet of the intermediate shaft brake intake solenoid valve 602.

[0077] like Figure 3 As shown, the air inlet of the intermediate shaft brake intake solenoid valve 602 is connected to one end of the intermediate shaft brake high-pressure air supply channel 603, and the other end of the intermediate shaft brake high-pressure air supply channel 603 is connected to the other end of the high-pressure air supply channel 3.

[0078] like Figure 3 As shown, the intermediate shaft brake cylinder 601 is also connected to the air inlet of the intermediate shaft brake exhaust solenoid valve 604, and the air outlet of the intermediate shaft brake exhaust solenoid valve 604 is connected to the outside atmosphere.

[0079] In this embodiment, the intake and exhaust of the central clutch actuator cylinder 501 and the intermediate shaft brake cylinder 601 are controlled by solenoid valves, thereby realizing the control of the central clutch and the speed regulation of the intermediate shaft brake.

[0080] like Figure 3 As shown, the other end of the high-pressure gas supply channel 3 is also connected to the gear shifting electrical unit 7.

[0081] As a preferred embodiment of this invention, such as Figure 3 As shown, the gear shifting electrical unit 7 includes a gear shifting cylinder 701, which is connected to the first air outlet of the two-position three-way solenoid valve 702 on the left side of the gear shifting position.

[0082] like Figure 3 As shown, the air inlet of the two-position three-way solenoid valve 702 on the left side of the gear shift is connected to one end of the high-pressure air supply channel 703 on the left side of the gear shift, and the other end of the high-pressure air supply channel 703 on the left side of the gear shift is connected to the other end of the high-pressure air supply channel 3.

[0083] like Figure 3 As shown, the second air outlet of the two-position three-way solenoid valve 702 on the left side of the gear shift is connected to the outside atmosphere.

[0084] like Figure 3 As shown, the gear shift cylinder 701 is also connected to the first air outlet of the two-position three-way solenoid valve 704 on the right side of the gear shift.

[0085] like Figure 3As shown, the air inlet of the two-position three-way solenoid valve 704 on the right side of the gear shift is connected to one end of the high-pressure air supply channel 705 on the right side of the gear shift, and the other end of the high-pressure air supply channel 705 on the right side of the gear shift is connected to the other end of the high-pressure air supply channel 3.

[0086] like Figure 3 As shown, the second air outlet of the two-position three-way solenoid valve 704 on the right side of the gear shift is connected to the outside atmosphere.

[0087] like Figure 3 As shown, the other end of the high-pressure gas supply channel 3 is also connected to the gear selection electrical unit 8.

[0088] like Figure 3 As shown, the gear selection electrical unit 8 includes a gear selection cylinder 801, which is connected to the first air outlet of the gear selection left-side two-position three-way solenoid valve 802.

[0089] like Figure 3 As shown, the air inlet of the left-side two-position three-way solenoid valve 802 is connected to one end of the left-side high-pressure air supply channel 803, and the other end of the left-side high-pressure air supply channel 803 is connected to the other end of the high-pressure air supply channel 3.

[0090] like Figure 3 As shown, the second air outlet of the two-position three-way solenoid valve 802 on the left side of the gear selector is connected to the outside atmosphere.

[0091] like Figure 3 As shown, the gear selection cylinder 801 is also connected to the first air outlet of the two-position three-way solenoid valve 804 on the right side of the gear selection.

[0092] like Figure 3 As shown, the air inlet of the two-position three-way solenoid valve 804 on the right side of the gear selection is connected to one end of the high-pressure air supply channel 805 on the right side of the gear selection, and the other end of the high-pressure air supply channel 805 on the right side of the gear selection is connected to the other end of the high-pressure air supply channel 3.

[0093] like Figure 3 As shown, the second air outlet of the two-position three-way solenoid valve 804 on the right side of the gear selector is connected to the outside atmosphere.

[0094] like Figure 3 As shown, the other end of the high-pressure gas supply channel 3 is connected to the rear auxiliary box electrical unit 9.

[0095] like Figure 3 As shown, the rear auxiliary box electrical unit 9 includes a rear auxiliary box cylinder 901, which is connected to the first air outlet of the left side two-position three-way solenoid valve 902 of the rear auxiliary box.

[0096] like Figure 3As shown, the air inlet of the two-position three-way solenoid valve 902 on the left side of the rear auxiliary box is connected to one end of the high-pressure air supply channel 903 on the left side of the rear auxiliary box, and the other end of the high-pressure air supply channel 903 on the left side of the rear auxiliary box is connected to the other end of the high-pressure air supply channel 3.

[0097] like Figure 3 As shown, the second air outlet of the two-position three-way solenoid valve 902 on the left side of the rear auxiliary box is connected to the outside atmosphere.

[0098] like Figure 3 As shown, the rear auxiliary box cylinder 901 is also connected to the first air outlet of the two-position three-way solenoid valve 904 on the right side of the rear auxiliary box.

[0099] like Figure 3 As shown, the air inlet of the two-position three-way solenoid valve 904 on the right side of the rear auxiliary box is connected to one end of the high-pressure air supply channel 905 on the right side of the rear auxiliary box, and the other end of the high-pressure air supply channel 905 on the right side of the rear auxiliary box is connected to the other end of the high-pressure air supply channel 3.

[0100] like Figure 3 As shown, the second air outlet of the two-position three-way solenoid valve 904 on the right side of the rear auxiliary box is connected to the outside atmosphere.

[0101] In this embodiment, as Figure 4 As shown, the front cover 14 of the gearbox integrates electrical components related to the front auxiliary gearbox, including the front auxiliary gearbox shift cylinder 401, the front auxiliary gearbox left two-position three-way solenoid valve 402, the front auxiliary gearbox right two-position three-way solenoid valve 404, the front auxiliary gearbox left high-pressure air supply channel 403, the front auxiliary gearbox right high-pressure air supply channel 405, the front auxiliary gearbox displacement sensor, and the front auxiliary gearbox power supply pipe.

[0102] In this embodiment, as Figure 4 As shown, the front cover 14 of the gearbox integrates both the central clutch actuator cylinder 501 and the intermediate shaft brake cylinder 601.

[0103] In this embodiment, as Figure 1 As shown, the gearbox housing 10 is provided with a central clutch actuator air supply port 508. The air supply passages after the valves of the central clutch two-position two-way intake fast valve 502 and the central clutch two-position two-way intake slow valve 504 are connected to the central clutch actuator cylinder 501 through the central clutch actuator air supply port 508.

[0104] In this embodiment, as Figure 1 As shown, the gearbox housing 10 is also provided with an intermediate shaft brake air supply port 605, and the air supply passage after the valve of the intermediate shaft brake intake solenoid valve 602 is connected to the intermediate shaft brake cylinder 601 through the intermediate shaft brake air supply port 605.

[0105] The device in this embodiment is used in a three-section integrated AMT. The three-section integrated AMT includes a front auxiliary box, a main box, and a rear auxiliary box. The main box and the rear auxiliary box are selected and switched by a gear shifting actuator. The front auxiliary box is externally mounted and is supplied with gas and electricity by the gear shifting actuator.

[0106] In this embodiment, the high-pressure air source 1 of the vehicle is connected to the air inlet of the gear shifting actuator. The gear shifting actuator has a mechanical pressure regulating valve 2 inside, which regulates the pressure of the high-pressure gas of the vehicle and distributes it to the front end of the solenoid valve of each unit. The high-pressure air supply channel 3 is connected to the front auxiliary box air supply positioning pin hole 11 on the gearbox housing 10. The front auxiliary box air supply positioning pin hole 11 is provided with a front auxiliary box air supply hollow positioning pin 12. The high-pressure gas is connected to the front auxiliary box left two-position three-way solenoid valve 402 through the front auxiliary box air supply hollow positioning pin 12 and the front auxiliary box left high-pressure air supply channel 403. The high-pressure gas is connected to the front auxiliary box right two-position three-way solenoid valve 404 through the front auxiliary box air supply hollow positioning pin 12 and the front auxiliary box right high-pressure air supply channel 405.

Claims

1. A front and auxiliary air supply device, characterized in that, It includes a front auxiliary box air supply hollow positioning pin (12), one end of which is connected to one end of the high pressure air supply channel (3) in the gear shifting actuator to obtain air; the other end of the front auxiliary box air supply hollow positioning pin (12) is connected to the front auxiliary box of the integrated AMT to supply air.

2. The front and auxiliary air supply device as described in claim 1, characterized in that, The integrated AMT includes a gearbox housing (10), and a front auxiliary gearbox air supply positioning pin hole (11) is provided on the side of the gearbox housing (10), and a front auxiliary gearbox air supply hollow positioning pin (12) is provided in the front auxiliary gearbox high pressure air positioning pin hole (11).

3. The front and auxiliary air supply device as described in claim 2, characterized in that, The other end of the hollow positioning pin (12) for supplying air to the front auxiliary box is connected to the high-pressure air supply channel (403) on the left side of the front auxiliary box for supplying air; the other end of the hollow positioning pin (12) for supplying air to the front auxiliary box is also connected to the high-pressure air supply channel (405) on the right side of the front auxiliary box for supplying air.

4. The front and auxiliary air supply device as described in claim 3, characterized in that, The front auxiliary box includes a front auxiliary box electrical unit (4), and the front auxiliary box electrical unit (4) includes a front auxiliary box gear shifting cylinder (401). The front auxiliary box gear shifting cylinder (401) is connected to the first air outlet of the two-position three-way solenoid valve (402) on the left side of the front auxiliary box. The air inlet of the two-position three-way solenoid valve (402) on the left side of the front auxiliary box is connected to one end of the high-pressure air supply channel (403) on the left side of the front auxiliary box, and the other end of the high-pressure air supply channel (403) on the left side of the front auxiliary box is connected to the other end of the air supply hollow positioning pin (12) of the front auxiliary box to draw air. The second air outlet of the two-position three-way solenoid valve (402) on the left side of the front auxiliary box is connected to the outside atmosphere; The front auxiliary gearbox shift cylinder (401) is also connected to the first air outlet of the two-position three-way solenoid valve (404) on the right side of the front auxiliary gearbox; The air inlet of the two-position three-way solenoid valve (404) on the right side of the front auxiliary box is connected to one end of the high-pressure air supply channel (405) on the right side of the front auxiliary box, and the other end of the high-pressure air supply channel (405) on the right side of the front auxiliary box is connected to the other end of the air supply hollow positioning pin (12) of the front auxiliary box to draw air. The second air outlet of the two-position three-way solenoid valve (404) on the right side of the front auxiliary box is connected to the outside atmosphere.

5. The front and auxiliary air supply device as described in claim 2, characterized in that, The gearbox housing (10) is provided with the gear selection and shifting mechanism; the gear selection and shifting mechanism also includes a mechanical pressure regulating valve (2) whose air inlet is connected to the high-pressure air source (1) in the integrated AMT, and the air outlet of the mechanical pressure regulating valve (2) is connected to the other end of the high-pressure air supply channel (3).

6. A gear shifting actuator, characterized in that, Includes the front auxiliary box air supply device as described in any one of claims 1 to 5.

7. An integrated AMT, characterized in that, Includes the gear shifting actuator as described in claim 6.

8. The integrated AMT as described in claim 7, characterized in that, The integrated AMT is a three-section integrated AMT; the three-section integrated AMT is an AMT that integrates the front auxiliary box, the main box and the rear auxiliary box.

Images