CN219755323U

CN219755323U - Gear shifting accelerator for vehicle

Info

Publication number: CN219755323U
Application number: CN202321055707.3U
Authority: CN
Inventors: 范学涛; 王正茂; 赵德鑫
Original assignee: Shandong Tongchuang Industrial Control Automation Co ltd
Current assignee: Shandong Tongchuang Industrial Control Automation Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-26
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses a vehicle gear shifting accelerator, which comprises an accelerator valve body, wherein a working cavity, an air inlet channel, a ventilation channel and an exhaust channel which are communicated with the working cavity are arranged in the accelerator valve body; through this device, connect this device and set up the vehicle gearbox the gear shifting solenoid valve with shift between the cylinder for the gearbox is shifted and is no longer had to be passed through the gear shifting solenoid valve and exhaust when shifting, improves the exhaust velocity, has shortened the action time of shifting the cylinder, eliminates action delay or the condition of blocking, makes the response time of gearbox faster, and it is smoother to shift, makes the overall control nature of vehicle promoted.

Description

Gear shifting accelerator for vehicle

Technical Field

The utility model belongs to the technical field of vehicle gear shifting mechanisms, and particularly relates to a vehicle gear shifting accelerator.

Background

The automatic gearbox of the existing truck adopts a pneumatic gear shifting mechanism, upshift or downshift is often generated in the gear shifting process, and delay and blocking phenomenon exist. According to the technical principle analysis gearbox gear shifting, a gear shifting electromagnetic valve is used for controlling a gas circuit to switch so that the gear shifting cylinder in an actuating mechanism can finish gear shifting, the gear shifting cylinder is required to continuously switch in the gear shifting process, namely, a working cavity of the gear shifting cylinder can continuously charge or discharge gas, the charge and discharge processes are finished through the gear shifting electromagnetic valve, namely, the current discharge gas of the gear shifting cylinder is also discharged through a connecting pipe by controlling the gas circuit by the gear shifting electromagnetic valve, and the process is caused to take a certain time because the gear shifting electromagnetic valve has a discharge delay and a connecting pipeline between the gear shifting cylinder and the electromagnetic valve has a certain length, so that a certain hysteresis is generated in the gas circuit conducting or switching action process, and a certain delay or blocking occurs in the gear shifting process of the gearbox gear shifting of a truck.

Disclosure of Invention

In view of the defects and drawbacks existing in the prior art, the utility model aims to provide a vehicle gear shifting speed increaser, which is applied between a gear shifting electromagnetic valve and a gear shifting cylinder, and solves the problems that in the gear shifting process of the vehicle in the prior art, the exhaust process of the gear shifting speed increaser is controlled to be exhausted through the electromagnetic valve, and the gear shifting electromagnetic valve has exhaust delay and a connecting pipeline between the gear shifting cylinder and the gear shifting electromagnetic valve has a certain length, so that gas is exhausted for a certain time, and certain hysteresis is generated in the gas path conducting or switching action process, so that a truck has certain delay or clamping in the gear shifting process of the gear shifting speed increaser and the gear shifting speed increaser.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a vehicle speed increaser that shifts, is connected between the gear shift cylinder of vehicle gearbox and the solenoid valve that shifts, includes the speed increaser valve body, is equipped with working chamber and with the communicating air inlet channel of working chamber in the speed increaser valve body, take a breath passageway, exhaust passage, the air inlet channel other end is connected with the solenoid valve that shifts, the air inlet channel other end is connected with the gear shift cylinder, the exhaust passage other end communicates with each other with the external atmosphere, the working chamber in through spring coupling one can open the air inlet channel and close the air outlet channel when the solenoid valve that shifts makes the spring pressurized to the air inlet channel, remove the air inlet channel when the solenoid valve that shifts and remove the air feed and make the spring reset can open the air outlet channel and with the piston that the air inlet channel closed.

As a further improvement of the utility model, an exhaust pipe communicated with the exhaust channel is arranged inside the exhaust channel in the working cavity, a conical horn pipe with gradually increased diameter is arranged outside the exhaust pipe from one end far away from the exhaust channel to the other end, and the spring is sleeved on the conical horn pipe.

As a further improvement of the utility model, a section of straight cylindrical exhaust inlet is arranged in one side pipe of the exhaust pipe far from the exhaust passage.

As a further improvement of the utility model, the speed increaser valve comprises a main valve body and an end cover, wherein the working cavity is arranged on one side of the main valve body and is covered by the end cover fixed on the main valve body, and a sealing ring is arranged at the joint between the end cover and the main valve body.

As a further improvement of the utility model, the exhaust passage is arranged on the end cover, and the exhaust pipe is fixed on the inner side of the end cover.

As a further improvement of the utility model, the end cover and the exhaust pipe are integrally formed.

As a further improvement of the utility model, a flat muffler which can pass gas and can absorb sound and reduce noise is arranged at one end of the exhaust passage close to the outer side.

As a further development of the utility model, the inlet channel is connected to the gas path of the shift solenoid valve by a through connection.

As a further development of the utility model, the ventilation channel is connected to the shift cylinder via a through-connection swivel.

As a further improvement of the utility model, the through rotary joint comprises a fixed joint with one end connected with the ventilation channel and a rotary joint rotatably arranged at the other end of the fixed joint, and the other end of the rotary joint is in threaded connection with the gear shifting cylinder.

Compared with the prior art, the utility model has the following advantages:

1. through arranging the valve body of the speed increaser, a working cavity, an air inlet channel, a ventilation channel and an exhaust channel which are communicated with the working cavity are arranged in the valve body of the speed increaser, the other end of the air inlet channel is connected with a gear shifting electromagnetic valve, the other end of the ventilation channel is connected with a gear shifting cylinder, the other end of the exhaust channel is communicated with the outside atmosphere, a piston which can close or open the air inlet channel and the exhaust channel is connected in the working cavity through a spring, under the working state of the original gear, compressed air enters the valve body of the speed increaser through the air inlet channel by a control air channel of the gear shifting electromagnetic valve, the entering air pushes the piston to move towards one side of the exhaust channel against the acting force of a reset spring, thereby opening the air inlet channel and closing the exhaust channel, at the moment, the air inlet channel and the ventilation channel are both communicated with the working cavity, and the air flows into the working cavity through the air inlet channel and flows to the gear shifting cylinder from the ventilation channel, when the gear shifting electromagnetic valve is controlled to shift gears, firstly, the gear shifting electromagnetic valve controls the air path to remove the air supply of the original gear of the gear shifting air cylinder, at the moment, the piston moves and resets to one side far away from the exhaust channel rapidly under the action of the reset spring and the working cavity pressure of the gear shifting air cylinder, thereby closing the air inlet channel, opening the exhaust channel instantaneously, at the moment, the air exchanging channel and the exhaust channel are communicated with the working cavity, the air pressure of the original gear is rapidly exhausted to the atmosphere through the air exchanging channel, the working cavity and the exhaust channel, thus the air of the original gear can be rapidly removed, the gear shifting electromagnetic valve is convenient to cut into the air pressure of the next gear, namely, the gear shifting electromagnetic valve starts to supply air to the next gear, and the gear shifting air cylinder rapidly moves to the gear, in a word, by setting the device, the device is connected between the gear shifting electromagnetic valve of the vehicle gearbox and the gear shifting cylinder, so that the gear shifting of the gearbox is not needed to be carried out through the gear shifting electromagnetic valve, the exhaust speed is improved, the action time of the gear shifting cylinder is shortened, the action delay or the blocking condition is eliminated, the response time of the gearbox is faster, the gear shifting is smoother, and the overall operability of the vehicle is improved.

2. Through setting up the blast pipe into the structure of toper horn pipe, accord with the streamlined low-resistance design of hydrodynamics, reduce viscous effect, be favorable to gaseous quick discharge, reduce gaseous discharge time, improve gear shift speed.

3. A section of straight cylindrical exhaust inlet is formed in one side pipe of the exhaust pipe far away from the exhaust passage, so that the exhaust inlet of the conical horn pipe is increased, and the exhaust speed is improved.

4. By arranging the sealing ring between the end cover and the main valve body, the tightness is improved, and gas leakage is avoided.

5. Through setting up exhaust passage on the end cover to with end cover and blast pipe integrated into one piece preparation, simple structure is convenient for make.

6. Through the passageway of taking a breath through rotary joint with shift the cylinder and be connected, be convenient for after the fixed butt joint of air inlet channel and solenoid valve of shifting is accomplished, through twist change through rotary joint with can realize accurate connection with the air inlet of different shift the cylinder, avoid adopting the connected mode of fixed joint to make the joint with shift the problem that the screw thread of cylinder is not good to aim at, enlarge application scope, increase the commonality.

7. Through setting up dull and stereotyped muffler in exhaust passage outside one end, fall noise reduction dustproof, noise pollution that appears when reducing the exhaust.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic plan view of the present utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2 (exhaust state);

in the figure: 1. a speed increaser valve body; 2. a working chamber; 3. an air intake passage; 4. a ventilation channel; 5. an exhaust passage; 6. a spring; 7. a piston; 8. an exhaust pipe; 9. an exhaust inlet; 10. an end cap; 11. a seal ring; 12. a flat panel muffler; 13. a straight-through joint; 14. fixing the joint; 15. a rotary joint; 16. and (5) a screw.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3. For the sake of clarity, only the structures related to the utility model are shown in the drawings.

For convenience of description, the coordinate system is defined as shown in fig. 1, and the left-right direction is a transverse direction, the front-back direction is a longitudinal direction, and the up-down direction is a vertical direction.

The embodiment of the utility model discloses a vehicle gear shifting accelerator. Referring to fig. 1 and 2, a vehicle gear shifting speed increaser is connected between a gear shifting cylinder and a gear shifting electromagnetic valve of a gear shifting box of a vehicle (such as a truck or a truck automatic gear shifting vehicle type), and comprises a speed increaser valve body 1, as shown in fig. 3, the speed increaser valve body 1 comprises a main valve body 17 and an end cover 10, a working cavity 2 is arranged in the main valve body 17 from one side, the end cover 10 is covered on the working cavity 2, the end cover 10 and the main valve body 17 can be detachably connected through a screw 16 or can be fixedly connected through riveting, the speed increaser valve body 1 and the end cover 10 jointly enclose the working cavity 2 into a closed cavity, and in order to improve the tightness, the gas leakage in the working cavity 2 is avoided, and a sealing ring 11 is arranged at the joint between the end cover 10 and the speed increaser valve body 1. In addition, the accelerator valve body 1 is provided with an air intake passage 3, a ventilation passage 4 and an exhaust passage 5 which are communicated with the working chamber 2. For the intake passage 3, which is provided on the main valve body 17, the other end of the intake passage 3 is connected to the gas path (not shown in the drawing) of the shift solenoid valve through a through joint 13 that mates with the connection joint of the shift solenoid valve.

For the ventilation channel 4, it is arranged on the main valve body 17, the ventilation channel 4 can be connected with the gear shifting cylinder through a through rotary joint 18 which can be connected with the air inlet nozzle of the gear shifting cylinder in a matching way, and can be connected with the gear shifting cylinder through a fixed through joint 13, but in order to avoid the problem that the joint is not aligned with the screw button of the gear shifting cylinder in a connecting way of the fixed joint 14, the connecting way of the through rotary joint 18 shown in fig. 3 is preferably adopted, specifically, the through rotary joint 18 comprises a fixed joint 14 with one end connected with the ventilation channel 4 and a rotary joint 15 which is rotatably arranged at the other end of the fixed joint 14, and the other end of the rotary joint 15 is connected with the gear shifting cylinder in a threaded way, so that after the fixed butt joint of the air inlet channel 3 and the gear shifting electromagnetic valve is finished, the accurate connection can be realized with the air inlets of different gear shifting cylinders through screwing the through rotary joint 18, the application range is enlarged, and the universality is increased.

As for the exhaust passage 5, the other end of the exhaust passage 5 is communicated with the external atmosphere so as to be capable of directly exhausting the gas of the working chamber 2 into the external atmosphere; in order to reduce noise in the exhaust process, a flat muffler 12 which can enable gas to pass through and can absorb sound is arranged at one end, close to the outer side, of the exhaust channel 5, and the flat muffler 12 is a conventional muffler commonly used in the industry. In a specific arrangement, the exhaust passage 5 can be directly arranged on the end cover 10 and is positioned at the opposite side of the air inlet passage 3, the working cavity 2 is internally connected with a piston 7 through a spring 6, the piston can open the air inlet passage 3 and close the exhaust passage 5 when the shifting electromagnetic valve supplies air to the air inlet passage 3 so that the spring 6 is pressed, and the piston can open the exhaust passage 5 and close the air inlet passage 3 when the shifting electromagnetic valve removes air to the air inlet passage 3 so that the spring 6 is reset. When the electromagnetic valve is in operation, the piston 7 is pushed to close the exhaust channel 5 through the movement of the piston 7, namely when the electromagnetic valve is in air, the air inlet channel 3, the working cavity 2 and the air exchanging channel 4 are communicated to supply air to the gear, when the electromagnetic valve is out of air, the piston 7 is reset to close the air inlet channel 3, and the air exchanging channel 4, the working cavity 2 and the exhaust channel 5 are communicated to exhaust air outwards.

In order to further realize quick exhaust of gas, reduce exhaust time length and increase exhaust smoothness, an exhaust pipe 8 communicated with the exhaust channel 5 is arranged inside the exhaust channel 5 in the working cavity 2, the exhaust pipe 8 is fixed inside the end cover 10, and in order to facilitate manufacture, the exhaust pipe 8 can be integrally formed by the end cover 10 and the exhaust pipe 8.

The exhaust pipe 8 is a conical horn pipe with gradually increased diameter from one end far away from the exhaust passage 5 to the other end, the spring 6 is sleeved on the conical horn pipe, the design of the exhaust pipe 8 of the conical horn pipe accords with the streamline low-resistance design of fluid mechanics, viscous effect is reduced, rapid exhaust of gas is facilitated, gas exhaust time is reduced, and gear shifting speed is improved. In addition, a section of straight cylindrical exhaust inlet 9 is formed in the inner part of one side pipe of the exhaust pipe 8 far away from the exhaust channel 5, so that the exhaust inlet 9 of the conical horn pipe at the conical end is enlarged, and the improvement of the exhaust speed is facilitated.

The implementation principle of the embodiment is as follows: when gear shifting is needed, the operating pressure of the gear shifting cylinder to the original gear is needed to be removed firstly, namely a gear shifting electromagnetic valve control gas circuit removes gas supply to the original gear of the gear shifting cylinder, at the moment, a piston 7 moves and resets to one side far away from an exhaust channel 5 rapidly under the action of the pressure of a reset spring 6 and a working cavity 2 of the gear shifting cylinder, so that an air inlet channel 3 is closed, the exhaust channel 5 is opened instantaneously, at the moment, a ventilation channel 4 and the exhaust channel 5 are communicated with the working cavity 2, the gas pressure of the original gear is rapidly exhausted to the atmosphere through the ventilation channel 4, the working cavity 2 and the exhaust channel 5, and after the gas of the original gear is rapidly removed; the gear shifting solenoid valve starts to operate and supply air to a new gear through the gear shifting air cylinder, namely, the gear shifting solenoid valve supplies air to the air inlet channel 3, compressed air enters the valve body 1 of the speed increaser through the air inlet channel 3 by a control air channel of the gear shifting solenoid valve, the entering air pushes the piston 7 to overcome the acting force of the reset spring 6 and move to one side of the air outlet channel 5, so that the air inlet channel 3 is opened, the air outlet channel 5 is closed, at the moment, the air inlet channel 3 and the air exchanging channel 4 are communicated through the working cavity 2, then air flows into the working cavity 2 through the air inlet channel 3 and flows to the gear shifting air cylinder from the air exchanging channel 4, and the gear shifting air cylinder supplies air to the new gear, so that gear shifting is rapidly completed.

The overall technical effects of this embodiment are: by arranging the valve body 1 of the speed increaser, arranging a working cavity 2, an air inlet channel 3 communicated with the working cavity 2, a ventilation channel 4 and an exhaust channel 5 in the valve body 1 of the speed increaser, wherein the other end of the air inlet channel 3 is connected with a gear shifting electromagnetic valve, the other end of the ventilation channel 4 is connected with a gear shifting cylinder, the other end of the exhaust channel 5 is communicated with the outside atmosphere, a piston 7 capable of closing or opening the air inlet channel 3 and the exhaust channel 5 is connected in the working cavity 2 through a spring 6, when the original gear air supply is required to be removed when the gear is switched, the gear shifting electromagnetic valve controls an air channel to remove the air supply of the original gear of the gear shifting cylinder, at the moment, the piston 7 moves and resets rapidly to one side far away from the exhaust channel 5 under the pressure of the return spring 6 and the gear shifting cylinder working cavity 2, thereby closing the air inlet channel 3 and instantaneously opening the exhaust channel 5, at this moment, the ventilation channel 4 and the exhaust channel 5 are both communicated with the working cavity 2, and the gas pressure of the original gear is rapidly emptied into the atmosphere through the ventilation channel 4, the working cavity 2 and the exhaust channel 5, so that the gas of the original gear can be rapidly discharged, the gear shifting electromagnetic valve is convenient to cut into the gas pressure of the next gear, and the gear shifting cylinder rapidly acts in place.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. It should be understood that the detailed description is presented for purposes of understanding only and is not intended to limit the utility model to all other embodiments that may be obtained by one skilled in the art without making any inventive effort.

Claims

1. The utility model provides a vehicle speed increaser that shifts, is connected between the gear shift cylinder and the solenoid valve that shifts of vehicle gearbox, its characterized in that: the automatic gear shifting valve comprises a valve body of a gear shifting device, wherein a working cavity, an air inlet channel, a ventilation channel and an exhaust channel which are communicated with the working cavity are arranged in the valve body of the gear shifting device, the other end of the air inlet channel is connected with a gear shifting electromagnetic valve, the other end of the ventilation channel is connected with a gear shifting cylinder, the other end of the exhaust channel is communicated with the outside atmosphere, the working cavity is connected with a piston which can open the air inlet channel and close the air inlet channel when the gear shifting electromagnetic valve supplies air to the air inlet channel to enable the spring to be pressed, and can open the air outlet channel and close the air inlet channel when the gear shifting electromagnetic valve removes the air inlet channel to enable the spring to reset.

2. A vehicle shift-up accelerator according to claim 1, characterized in that: the working cavity is internally provided with an exhaust pipe communicated with the exhaust channel at the inner side of the exhaust channel, the exhaust pipe is a conical horn pipe with gradually increased diameter from one end far away from the exhaust channel to the other end, and the spring is sleeved on the conical horn pipe.

3. A vehicle shift-up accelerator according to claim 2, characterized in that: one side of the exhaust pipe far away from the exhaust channel is internally provided with a section of straight cylindrical exhaust inlet.

4. A vehicle shift-up accelerator according to claim 1, characterized in that: the speed accelerator valve body comprises a main valve body and an end cover, a working cavity is formed in one side of the main valve body and is covered by the end cover fixed on the main valve body, and a sealing ring is arranged at the joint between the end cover and the main valve body.

5. A vehicle shift-up accelerator as claimed in claim 4, wherein: the exhaust passage is arranged on the end cover, and the exhaust pipe is fixed on the inner side of the end cover.

6. A vehicle shift-up accelerator as claimed in claim 5, wherein: the end cover and the exhaust pipe are integrally formed.

7. A vehicle shift-up accelerator as claimed in claim 6, wherein: the exhaust passage is internally provided with a flat muffler which can enable gas to pass through and can absorb sound and reduce noise at one end close to the outer side.

8. A vehicle gear shift-up transmission according to any one of claims 1-7, wherein: the air inlet channel is connected with the air passage of the gear shifting electromagnetic valve through a straight-through connector.

9. A vehicle gear shift-up transmission according to any one of claims 1-7, wherein: the ventilation channel is connected with the gear shifting cylinder through a through rotary joint.

10. A vehicle shift-up accelerator according to claim 9, characterized in that: the through rotary joint comprises a fixed joint with one end connected with the ventilation channel and a rotary joint rotatably arranged at the other end of the fixed joint, and the other end of the rotary joint is in threaded connection with the gear shifting cylinder.