Integrated electric control pneumatic gear shifting executing mechanism

Abstract

The utility model discloses an integrated electric control pneumatic gear shifting executing mechanism which comprises a gear shifting executing mechanism body and a transmission control unit. The gear shifting executing mechanism comprises a gear shifting executing mechanism body, the gear shifting executing mechanism body is fixedly connected with a transmission control unit, an electromagnetic valve and a sensor are arranged in the gear shifting executing mechanism body, the electromagnetic valve and the sensor are both connected with the transmission control unit, the gear shifting executing mechanism body is connected with a plurality of output shafts, and the output shafts are all connected with the transmission control unit. The power of the electromagnetic valve is low, so that the energy consumption of the gear shifting execution mechanism is smaller, and the use of the transmission control unit enables the wiring harness in the gear shifting execution mechanism to be simplified, thereby improving the reliability. Meanwhile, core electric control parts and gas circuit components are all protected by the gear shifting executing mechanism, the failure rate can be effectively reduced, and therefore the service life of the gear shifting executing mechanism is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of automobile transmissions, in particular to an integrated electric-controlled pneumatic shift actuator. Background Art

[0002] With the development trend of industry technology, the competitiveness of new energy commercial vehicles in the market will gradually increase, especially in first- and second-tier cities where environmental protection policies are becoming increasingly stringent, and the demand for new energy heavy trucks is relatively large. In mining areas, the demand for pure electric mining trucks with advantages in use and maintenance costs will also increase.

[0003] The pure electric system of heavy trucks is developing in the direction of fewer gears, good price, light weight and high reliability. At present, the mainstream domestic manufacturers mainly focus on electronically controlled electric actuators and modular electronically controlled pneumatic actuators. Electronically controlled electric actuators need to consume electrical energy during operation. Especially in the case of frequent adjustments, the temperature of the motor coil will rise, which may not only cause the motor to overheat and cause failure, but also increase energy consumption. Due to the complexity of their structure, electronically controlled electric actuators and modular electronically controlled pneumatic actuators may have more exposed parts. These parts not only increase the difficulty of maintenance and increase the failure rate, but also may reduce the service life due to environmental factors (such as dust, humidity, etc.). At the same time, exposed parts may also increase safety risks during operation. Summary of the invention

[0004] The utility model aims to provide an integrated electric-controlled pneumatic shift actuator to solve the problems of energy consumption and increased failure rate caused by exposed components in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An integrated electric-controlled pneumatic shift actuator, comprising a shift actuator body and a transmission control unit;

[0007] The shift actuator body is fixedly connected to the transmission control unit. A solenoid valve and a sensor are arranged in the shift actuator body. Both the solenoid valve and the sensor are connected to the transmission control unit. The shift actuator body is connected to a plurality of output shafts. Both the output shafts are connected to the transmission control unit.

[0008] Furthermore, the shift actuator body is arranged inside the actuator housing, and the transmission control unit is arranged on the actuator housing.

[0009] Furthermore, an air inlet is provided on the shift actuator body.

[0010] Furthermore, a transmission control unit interface is provided on the transmission control unit, and the transmission control unit interface is connected to the vehicle control unit through a vehicle wiring harness.

[0011] Furthermore, a shift actuator interface is provided on the shift actuator body, and the shift actuator interface is connected to the transmission control unit through a vehicle wiring harness.

[0012] Furthermore, a threaded hole is provided on the shift actuator body, and the transmission control unit is connected to the threaded hole via bolts.

[0013] Furthermore, a shift actuator vent plug is provided on one side of the shift actuator body, and a transmission vent plug is provided on the other side of the shift actuator body.

[0014] Furthermore, a first protective rib is arranged around the vent plug of the gear shift actuator, and a second protective rib is arranged around the vent plug of the transmission.

[0015] Furthermore, a drainage hole is provided on one side of the vent plug of the gear shift actuator.

[0016] Furthermore, the position of the transmission vent plug corresponds to the oil retaining structure, and the oil retaining structure is arranged inside the transmission.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides an integrated electric-controlled pneumatic shift actuator, in which the shift actuator body is directly fixedly connected to the transmission control unit, which is convenient for the wiring harness layout of the whole vehicle. A solenoid valve and a sensor are arranged in the shift actuator body, and both the solenoid valve and the sensor are connected to the transmission control unit. The high-pressure gas of the whole vehicle enters the shift actuator. The control signal of the transmission control unit controls the intake and exhaust of the solenoid valve, and reads the signal of the sensor at the same time to control the action and displacement information of the output shaft on the shift actuator body, thereby realizing the shift action. The solenoid valve in the utility model has low power, so the energy consumption of the shift actuator is smaller. The use of the transmission control unit simplifies the wiring harness inside the shift actuator, thereby improving reliability. At the same time, the core electronic control parts and gas circuit components are protected by the shift actuator, which can effectively reduce the failure rate, thereby increasing the service life of the shift actuator.

[0019] Furthermore, the shift actuator is provided with a shift actuator vent plug and a transmission vent plug to balance the internal air pressure of the transmission, so that the rest of the transmission does not need to be arranged with a special vent plug installation structure, thereby simplifying the transmission structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a left view of the integrated electric-controlled pneumatic shift actuator of the utility model.

[0022] Figure 2 It is a right side view of the integrated electric-controlled pneumatic shift actuator of the utility model.

[0023] Figure 3 It is a top view of the integrated electric-controlled pneumatic shift actuator (excluding the TCU part) of the utility model.

[0024] Figure 4 This is a schematic diagram of the vent plug of the shift actuator of the utility model.

[0025] Figure 5 It is a schematic diagram of the transmission vent plug of the utility model.

[0026] Among them: 1-shift actuator body, 2-transmission control unit, 3-transmission, 1a-air inlet, 1b-shift actuator interface, 1c-output shaft, 1d-threaded hole, 1e-sensor, 1f-shift actuator vent plug, 1g-transmission vent plug, 1h-first protective rib, 1j-second protective rib, 1k-drain hole, 2b-transmission control unit interface. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The utility model is further described in detail below with reference to the accompanying drawings:

[0034] See also Figure 1 The utility model provides an integrated electric-controlled pneumatic shift actuator, including a shift actuator body 1 and a transmission control unit (TCU) 2. The shift actuator body 1 is arranged inside the actuator housing, and the transmission control unit 2 is arranged on the actuator housing. The shift actuator body 1 is fixedly connected to the transmission control unit 2. An air inlet 1a is provided on the shift actuator body 1, and high-pressure gas enters the electric-controlled pneumatic shift actuator through the air inlet 1a.

[0035] The transmission control unit 2 is provided with a transmission control unit interface 2b, which is connected to the vehicle control unit through the vehicle wiring harness. The vehicle control signal enters the transmission control unit 2 from some connectors of the transmission control unit interface 2b through the vehicle wiring harness. The shift actuator body 1 is provided with a shift actuator interface 1b, which is connected to the transmission control unit 2 through the vehicle wiring harness. The electrical signal of the transmission control unit 2 is transmitted through the wiring harness between the remaining connectors of the transmission control unit interface 2b and the shift actuator interface 1b on the shift actuator body 1, as shown in FIG. Figure 2 shown.

[0036] The shift actuator body 1 is provided with a threaded hole 1d, and the transmission control unit 2 is connected to the threaded hole 1d of the shift actuator body 1 by bolts. Figure 3 shown.

[0037] The shift actuator body 1 is provided with a solenoid valve and a sensor 1e, both of which are connected to the transmission control unit 2. The transmission control unit 2 controls the intake and exhaust by controlling the solenoid valve. The sensor 1e is used to sense information such as the air pressure of the air path, the gear position, and the oil temperature in the transmission 3. The shift actuator body 1 is connected with an output shaft 1c, which is connected to the transmission control unit 2. The high-pressure gas of the whole vehicle enters the shift actuator through the air inlet 1a. The control signal of the transmission control unit 2 controls the action of the solenoid valve in the shift actuator body 1 and reads the signal of the sensor 1e in the shift actuator body 1 to control the action and displacement information of the output shaft 1c connected to the shift actuator body 1, thereby realizing the shift action.

[0038] In particular, a plurality of output shafts 1c may be provided in the present invention, and other components may be fixedly connected to the output shafts 1c, thereby achieving the output of force and displacement.

[0039] The shift actuator is provided with a shift actuator vent plug 1f and a transmission vent plug 1g. The shift actuator vent plug 1f is provided on one side of the shift actuator body 1, and the transmission vent plug 1g is provided on the other side of the shift actuator body 1. The function of the shift actuator vent plug 1f is to prevent the gas discharged by the solenoid valve in the shift actuator body 1 from causing excessive pressure inside the shift actuator body 1, thereby affecting the function of the solenoid valve. The function of the transmission vent plug 1g is to balance the air pressure inside the transmission 3 with the atmospheric pressure, and to prevent excessive temperature rise inside the transmission 3.

[0040] like Figure 4As shown, the shift actuator vent plug 1f is provided with a first protective rib 1h around it to prevent the shift actuator vent plug 1f from being damaged by external forces. A drainage hole 1k is provided on one side of the installation position of the shift actuator vent plug 1f to prevent water accumulation near the shift actuator vent plug 1f.

[0041] like Figure 5 As shown, a second protective rib 1j is arranged around the transmission vent plug 1g to prevent the transmission vent plug 1g from being damaged by external forces. In particular, an oil retaining structure can be arranged inside the transmission 3, and the position of the oil retaining structure corresponds to the position of the transmission vent plug 1g. With the whole box structure, the lubricating oil can be effectively prevented from leaking from the transmission vent plug 1g.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated electric-controlled pneumatic shift actuator, characterized in that: It comprises a gear shift actuator body (1) and a transmission control unit (2); The shift actuator body (1) is fixedly connected to a transmission control unit (2); a solenoid valve and a sensor (1e) are arranged in the shift actuator body (1); the solenoid valve and the sensor (1e) are both connected to the transmission control unit (2); the shift actuator body (1) is connected to a plurality of output shafts (1c); and the plurality of output shafts (1c) are all connected to the transmission control unit (2).

2. The integrated electric-controlled pneumatic shift actuator according to claim 1, characterized in that: The gear shift actuator body (1) is arranged inside the actuator housing, and the transmission control unit (2) is arranged on the actuator housing.

3. The integrated electric-controlled pneumatic shift actuator according to claim 1, characterized in that: An air inlet (1a) is provided on the gear shift actuator body (1).

4. The integrated electric-controlled pneumatic shift actuator according to claim 1, characterized in that: The transmission control unit (2) is provided with a transmission control unit interface (2b), and the transmission control unit interface (2b) is connected to the vehicle control unit via a vehicle wiring harness.

5. The integrated electric-controlled pneumatic shift actuator according to claim 1, characterized in that: The shift actuator body (1) is provided with a shift actuator interface (1b), and the shift actuator interface (1b) is connected to a transmission control unit (2) via a vehicle wiring harness.

6. The integrated electric-controlled pneumatic shift actuator according to claim 1, characterized in that: A threaded hole (1d) is provided on the gear shift actuator body (1), and the transmission control unit (2) is connected to the threaded hole (1d) via a bolt.

7. The integrated electric-pneumatic shift actuator according to claim 1, characterized in that: A gear shift actuator vent plug (1f) is provided on one side of the gear shift actuator body (1), and a transmission vent plug (1g) is provided on the other side of the gear shift actuator body (1).

8. The integrated electric-pneumatic shift actuator according to claim 7, characterized in that: A first protective rib (1h) is arranged around the gear shift actuator vent plug (1f), and a second protective rib (1j) is arranged around the transmission vent plug (1g).

9. The integrated electric-controlled pneumatic shift actuator according to claim 7, characterized in that: A drainage hole (1k) is provided on one side of the gear shift actuator vent plug (1f).

10. The integrated electric-controlled pneumatic shift actuator according to claim 7, characterized in that: The position of the transmission vent plug (1g) corresponds to the oil blocking structure, and the oil blocking structure is arranged inside the transmission (3).

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