Automatic circulation exhaust mechanism for hydraulic pipeline of clutch system

Abstract

The utility model relates to the technical field of hydraulic pipelines of clutch systems, in particular to an automatic circulation exhaust mechanism of a hydraulic pipeline of a clutch system, which comprises an air cylinder, an air pressure source, an electromagnetic directional valve, a clutch slave cylinder, a storage battery, a first clutch master cylinder and a second clutch master cylinder. A piston guide rod of the air cylinder is connected with a guide rod of the first clutch master cylinder and used for pushing a piston of the first clutch master cylinder, the first clutch master cylinder is communicated with one end of the first oil cup through a hydraulic pipeline, and the other end of the first oil cup is communicated with the second clutch master cylinder through a whole vehicle pipeline. The second clutch master pump is communicated with the clutch slave pump, the second oil cup is arranged on a hydraulic pipeline between the clutch slave pump and the first clutch master pump, and the problems that at the present stage, a large number of workers are occupied by manual exhaust, legs are prone to fatigue in the pedal exhaust process, time and labor are wasted, and whether exhaust is complete or not cannot be determined are solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipeline technology for clutch systems, and specifically to an automatic circulating venting mechanism for hydraulic pipelines in clutch systems. Background Technology

[0002] The hydraulic clutch control mechanism is the most common clutch control method in automobiles, used to switch gears. When OEMs produce mass-produced models, they can use a vacuum filling machine on the production line to vacuum the hydraulic system and fill it with oil, so that no air is left in the hydraulic system and the hydraulic system can work effectively. However, vacuum filling machines are relatively expensive, and small manufacturers and after-sales service stations generally cannot afford them. For small manufacturers and service stations that lack vacuum filling equipment, two workers are usually needed to manually bleed the clutch system by repeatedly pressing the pedal.

[0003] Manual venting requires a lot of staff, and the process of stepping on the pedal to vent can easily cause leg fatigue, which is time-consuming and laborious. After manual venting, it is also impossible to determine whether the venting is complete. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic circulating air venting mechanism for the hydraulic pipeline of a clutch system, which solves the problems of the current vacuum filling machine being relatively expensive, which small manufacturers and after-sales service stations generally cannot afford, manual air venting requiring a lot of staff, and the leg fatigue caused by stepping on the pedal during the air venting process, which is time-consuming and laborious, and it is also impossible to determine whether the air venting is complete.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] An automatic circulating venting mechanism for a clutch system hydraulic pipeline includes a cylinder, a pressure source, a solenoid directional valve, a clutch master cylinder, a clutch slave cylinder, and a battery. The clutch master cylinder includes a first clutch master cylinder and a second clutch master cylinder. The battery and the solenoid directional valve are linearly connected. During operation, the T-port of the solenoid directional valve is connected to an vent pipe, the P-port is connected to the pressure source, and the A-port is connected to the cylinder. The system also includes a first oil cup and a second oil cup. The piston rod of the cylinder is connected to the guide rod of the first clutch master cylinder to push the piston of the first clutch master cylinder. The first clutch master cylinder and the first... One end of the first oil cup is connected via a hydraulic line, and the other end of the first oil cup is connected to the second clutch master cylinder via a vehicle pipeline. The second clutch master cylinder is connected to the clutch slave cylinder and is connected to the clutch pedal. The second oil cup is located on the hydraulic line between the clutch slave cylinder and the first clutch master cylinder. A ball valve switch is installed on the hydraulic line between the second oil cup and the clutch slave cylinder. A clutch rocker arm is installed at one end of the clutch slave cylinder. The battery and a position sensor are linearly connected, and the position sensor is connected to the end stroke of the clutch rocker arm.

[0007] Furthermore, the electromagnetic directional valve is a two-position three-way directional valve.

[0008] Further, it also includes a push-button switch and a timer switch, both of which are installed on the wiring between the battery and the solenoid directional valve.

[0009] Further, it also includes a warning light, one end of which is connected to the battery and the other end of which is connected to the position sensor.

[0010] The advantages of this utility model over the current technology are as follows:

[0011] 1. It can automatically vent hydraulic pipelines and provide a complete venting detection indication, which is more accurate and reliable than the judgment of staff based on experience.

[0012] 2. The oil in the first and second oil cups is recycled to avoid oil pollution and leakage caused by manual oil discharge, thus saving oil. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the connection structure of this utility model.

[0014] The markings in the diagram correspond to: 1-Cylinder, 2-Air pressure source, 3-Solenoid directional valve, 4-Clutch slave cylinder, 5-Battery, 6-First clutch master cylinder, 7-Second clutch master cylinder, 8-Button switch, 9-Timer switch, 10-Exhaust pipe, 11-First oil cup, 12-Second oil cup, 13-Warning light, 14-Clutch pedal, 15-Ball valve switch, 16-Clutch rocker arm, 17-Position sensor. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0016] like Figure 1 As shown, an automatic circulating venting mechanism for a clutch system hydraulic pipeline includes a cylinder 1, a pressure source 2, an electromagnetic directional valve 3, a clutch master cylinder, a clutch slave cylinder 4, and a battery 5. The clutch master cylinder includes a first clutch master cylinder 6 and a second clutch master cylinder 7. The battery 5 and the electromagnetic directional valve 3 are connected by a wire. A push-button switch 8 and a timer switch 9 are installed on the wire between the battery 5 and the electromagnetic directional valve 3. The electromagnetic directional valve 3 is a two-position three-way directional valve. During operation, the T port of the electromagnetic directional valve 3 is connected to an vent pipe 10, the P port is connected to the pressure source, and the A port is connected to the cylinder. The piston rod of the cylinder 1 is connected to the guide rod of the first clutch master cylinder 6 to push the piston of the first clutch master cylinder 6. The system also includes a first oil cup 11, a second oil cup 12, and a warning light 13. The first clutch master cylinder 6 and the first oil cup 11 are connected by a push-button switch 12. The first oil cup 11 is connected to the second clutch master cylinder 7 via a hydraulic line. The second clutch master cylinder 7 is connected to the clutch slave cylinder 4 and the clutch pedal 14. The second oil cup 12 is located on the hydraulic line between the clutch slave cylinder 4 and the first clutch master cylinder 6. A ball valve switch 15 is installed on the hydraulic line between the second oil cup 12 and the clutch slave cylinder 4. A clutch rocker arm 16 is installed at one end of the clutch slave cylinder 4. The battery 5 and the position sensor 17 are linearly connected. The position sensor 17 is connected to the end of the clutch rocker arm 16 according to the designed stroke of the clutch rocker arm 16 of the vehicle or the actual stroke of the clutch rocker arm 16 of the vehicle being repaired. One end of the warning light 13 is connected to the battery 5 and the other end is connected to the position sensor 17.

[0017] Open the drain port of clutch slave pump 4, connect one end of the hydraulic line to the drain port of clutch slave pump 4 to connect it to the vehicle pipeline, and put ball valve switch 15 in the open state. Fill the first oil cup 11 of the vehicle with oil. At this time, you can observe the oil slowly decreasing and flowing into the vehicle pipeline. When the oil in the vehicle pipeline flows into the second oil cup 12, fill the first oil cup 11 with oil again, and use the hydraulic line to seal and fix the first oil cup 11.

[0018] Based on the cylinder 1's actuation and return times, set the opening and closing times of the time control switch 9 and the duration of a single cycle. After setting, connect the battery 5 and press the button switch 8. At this time, the solenoid directional valve 3 starts to operate. The P port of the solenoid directional valve 3 is connected to the air pressure source 2, and the A port is connected to the cylinder 1. High-pressure gas enters the cylinder 1. The cylinder piston guide rod is connected to the guide rod of the first clutch master pump 6, pushing the piston of the first clutch master pump 6 and pushing the oil into the first oil cup 11, thereby pressurizing the entire vehicle pipeline and promoting the circulation of oil in the entire vehicle pipeline. After this action is completed, the solenoid directional valve 3 resets, the passage from the air pressure source 2 to the cylinder 1 is disconnected, and the air in the cylinder 1 is discharged from the exhaust pipe 10 through the T port. The piston rod of the cylinder 1 resets under the action of the first clutch master pump 6 and the cylinder return spring, realizing the intermittent gas supply to the cylinder 1 and completing the cylinder 1 ejection-reset cycle. Through the oil circulation, the gas in the pipeline is driven into the second oil cup 12 for discharge. One cycle of exhaust is completed. After completion, close the ball valve switch 15, depress the clutch pedal 14, and check if the warning light 13 is lit. If the warning light 13 is not lit, continue to open the ball valve switch 15 to circulate and vent. If the warning light 13 is lit, it indicates that the clutch rocker arm 16's stroke meets the design stroke, and the circulation and venting can be ended. Tighten the drain port of the clutch slave pump 4, and disconnect the pipeline connecting the other end of the clutch slave pump 4 to the first oil cup 11, allowing the oil to flow into the second oil cup 12 for recycling. After filling, disconnect the hydraulic pipeline and disconnect the pipeline connecting the position sensor 17 and the air pressure source 2. This mechanism can realize automatic venting of the hydraulic pipeline and detection indication of whether the venting is complete. Compared with the experience judgment of the staff, it is more accurate and reliable. At the same time, the structure is simple, the component cost of the mechanism is low, and it is easy to operate, which can reduce the labor intensity of the staff. It realizes the circulation and reuse of oil in the oil cup, solves the problem of oil pollution and leakage caused by manual oil draining, and can save oil.

[0019] In the description of this utility model, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "left", "right", "first", "second", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] The above provides a detailed description of an automatic circulating exhaust mechanism for a clutch system hydraulic pipeline. The specific embodiments are only used to help understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from it, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An automatic circulating air venting mechanism for a clutch system hydraulic pipeline, characterized in that: The system includes a cylinder (1), a pneumatic pressure source (2), an electromagnetic reversing valve (3), a clutch master pump, a clutch slave pump (4), and a battery (5). The clutch master pump includes a first clutch master pump (6) and a second clutch master pump (7). The battery (5) and the electromagnetic reversing valve (3) are connected by a wire. During operation, the T port of the electromagnetic reversing valve (3) is connected to an exhaust pipe (10), the P port is connected to the pneumatic pressure source (2), and the A port is connected to the cylinder (1). The system also includes a first oil cup (11) and a second oil cup (12). The piston guide rod of the cylinder (1) is connected to the guide rod of the first clutch master pump (6) to push the piston of the first clutch master pump (6). One end of the first clutch master pump (6) and the first oil cup (11) are connected by hydraulic pressure. The pipelines are connected, and the other end of the first oil cup (11) is connected to the second clutch master cylinder (7) through the vehicle pipeline. The second clutch master cylinder (7) is connected to the clutch slave cylinder (4). The second clutch master cylinder (7) is connected to the clutch pedal (14). The second oil cup (12) is set on the hydraulic pipeline between the clutch slave cylinder (4) and the first clutch master cylinder (6). A ball valve switch (15) is set on the hydraulic pipeline between the second oil cup (12) and the clutch slave cylinder (4). A clutch rocker arm (16) is set on one end of the clutch slave cylinder (4). The battery (5) and the position sensor (17) are linearly connected. The position sensor (17) is connected to the end stroke of the clutch rocker arm (16).

2. The automatic circulating air venting mechanism for a clutch system hydraulic pipeline according to claim 1, characterized in that: The electromagnetic directional valve (3) is a two-position three-way directional valve.

3. The automatic circulating air venting mechanism for a clutch system hydraulic pipeline according to claim 1, characterized in that: It also includes a push-button switch (8) and a timer switch (9), both of which are installed on the line between the battery (5) and the solenoid reversing valve (3).

4. The automatic circulating air venting mechanism for a clutch system hydraulic pipeline according to claim 1, characterized in that: It also includes a warning light (13), one end of which is connected to the battery (5) and the other end is connected to the position sensor (17).

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