An integrated transmission for engine cranking and starting

Abstract

The utility model discloses an integrated transmission for engine turning and starting, including pressure reducing valve, solenoid valve, pneumatic turning motor, first gear and second gear, and the air inlet of pressure reducing valve is communicated with gas source, the air inlet of solenoid valve is communicated with the air outlet of pressure reducing valve, and the pneumatic turning motor is located at one side of engine, and the first air inlet of pneumatic turning motor is communicated with the first air outlet of solenoid valve, the first gear is connected with the first output shaft of pneumatic turning motor, and the first gear is driven under the driving of pneumatic turning motor, and drives engine starting gear ring to rotate to make engine enter turning mode, the pneumatic starting motor is located at the same side with pneumatic turning motor, and the air inlet of pneumatic starting motor is communicated with the second air outlet of solenoid valve, the second gear is connected with the second output shaft of pneumatic starting motor, and the second gear is driven under the driving of pneumatic starting motor, and drives the starting gear ring of engine to rotate to make engine enter starting mode.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to an integrated transmission device for engine turning and starting. Background Technology

[0002] Before starting the engine, a turning test is required to check for any friction, collision, or jamming inside the unit, ensuring safe operation after startup. Typically, a dedicated turning mechanism is required for this process. This mechanism is included with the machine but is inefficient and cumbersome to operate.

[0003] Existing engines are equipped with a starting device and a turning gear to perform turning operations and normal starting operations. The starting device is fixed to the engine flywheel housing, and its starting gear passes through the flywheel housing into the engine block to mesh with the starting gear ring of the shaft system, driving the shaft system to rotate rapidly. The turning gear is detachably connected to the flywheel housing. When turning operations are required, the turning gear meshes with the starting gear ring of the shaft system, driving the shaft system to rotate slowly. However, turning operations and starting operations are performed by two independent systems, which not only requires a large installation and operating space but also makes control extremely complex.

[0004] Chinese Patent CN 216812000 U - A turning gear starting device and engine, which realizes the function of turning gear (low speed) and starting (high speed) with a single pneumatic motor through a flow regulating valve, but it still has the following significant disadvantages and deficiencies when frequently switching between the two modes:

[0005] 1. The compressibility of gas causes a delay in the transmission of gas pressure after the flow regulating valve is activated. When switching frequently, the speed tracking is poor, which may result in excessively high turning speed or insufficient starting speed, affecting operational safety.

[0006] 2. Pneumatic motors frequently switch between low-speed turning and high-speed starting, resulting in excessively large vibration amplitudes, which accelerates fatigue damage to gears or bearings.

[0007] This utility model is used to solve at least one of the above problems. Utility Model Content

[0008] The purpose of this utility model is to provide an integrated transmission device for engine turning and starting. By integrating the engine turning and starting transmission, it overcomes the problems of existing technology where the starting device and turning device are performed by two separate systems, which occupy a large installation and operating space and are complex to control. It also avoids the problem of poor speed tracking of a single pneumatic motor when frequently switching between turning and starting operation modes, resulting in excessively high turning speed or insufficient starting speed. This improves operational safety and reduces fatigue damage to gears or bearings.

[0009] The objective of this utility model is achieved through the following technical solution: an integrated transmission device for engine cranking and starting, comprising:

[0010] A pressure reducing valve has an inlet and an outlet that are connected to each other, and the inlet of the pressure reducing valve is connected to an air source.

[0011] The solenoid valve has an inlet end and a first outlet end and a second outlet end respectively connected to the inlet end, and the inlet end of the solenoid valve is connected to the outlet of the pressure reducing valve.

[0012] A pneumatic turning motor has a first air inlet and an air outlet connected together. The pneumatic turning motor is disposed on one side of the engine. The first air inlet of the pneumatic turning motor is connected to the first air outlet of the solenoid valve.

[0013] The first gear is connected to the first output shaft of the pneumatic turning motor. The first gear meshes with the starting gear ring of the engine. Under the drive of the pneumatic turning motor, the first gear drives the starting gear ring of the engine to rotate, so that the engine enters the turning mode.

[0014] A pneumatic starter motor has a connected air inlet and an air outlet. The pneumatic starter motor and the pneumatic turning motor are located on the same side. The air inlet of the pneumatic starter motor is connected to the second air outlet of the solenoid valve.

[0015] The second gear is connected to the second output shaft of the pneumatic starter motor. The second gear meshes with the starter gear ring of the engine. Driven by the pneumatic starter motor, the second gear drives the starter gear ring of the engine to rotate, so that the engine enters the start mode.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The integrated transmission device of this utility model controls the gas flow into the pneumatic turning motor by switching the solenoid valve to control the opening of the pressure reducing valve, so that the speed of the pneumatic turning motor can match the turning power of the engine. At this speed, the pneumatic turning motor drives the first gear to rotate the engine's starting gear ring, transmitting torque to the engine's starting gear ring to achieve low-speed turning of the engine; by switching the solenoid valve to control the opening of the pressure reducing valve to control the gas flow into the pneumatic starter motor, the speed of the pneumatic starter motor can match the turning power of the engine. At this speed, the pneumatic starter motor drives the second gear to rotate the engine's starting gear ring, transmitting torque to the engine's starting gear ring to achieve high-speed starting of the engine.

[0017] In some possible implementations, the integrated transmission device further includes a main control valve disposed between the solenoid valve and the air source, the main control valve having an inlet and an outlet that are interconnected, the inlet of the main control valve being connected to the outlet of the pressure reducing valve, and the outlet of the main control valve being connected to the inlet of the solenoid valve.

[0018] In some possible implementations, the integrated drive also includes a filter disposed between the pressure reducing valve and the air source, the filter having an inlet and an outlet in communication with each other, the inlet of the filter being in communication with the air source, and the outlet of the filter being in communication with the inlet of the pressure reducing valve.

[0019] In some possible implementations, the solenoid valve further has a third outlet end connected to the inlet end of the solenoid valve; the second output shaft of the pneumatic starter motor is a pneumatic spring telescopic rod, the pneumatic spring telescopic rod has an inlet end and an outlet end, the inlet end of the pneumatic spring telescopic rod is connected to the third outlet end of the solenoid valve; the second gear is sleeved on the telescopic end of the pneumatic spring telescopic rod, and is used to mesh with the starting gear ring of the engine under the linear drive of the pneumatic spring telescopic rod.

[0020] In some possible implementations, the pneumatic turning gear motor further has a second air inlet connected to the first air inlet and air outlet of the pneumatic turning gear motor, and the integrated transmission device further includes a piping assembly;

[0021] The piping assembly includes an air inlet pipe, a first air outlet pipe, and a second air outlet pipe. One end of the air inlet pipe is connected to one end of the first air outlet pipe and one end of the second air outlet pipe, respectively. The other end of the first air outlet pipe is connected to the first air inlet of the pneumatic turning motor, and the other end of the second air outlet pipe is connected to the second air inlet of the pneumatic turning motor. The other end of the air inlet pipe is connected to the first air outlet of the solenoid valve.

[0022] The first outlet pipe is equipped with a first control valve to control its on / off state, and the second outlet pipe is equipped with a second control valve to control its on / off state.

[0023] In some possible implementations, the air outlet of the pneumatic turning motor is connected to the air outlet of the pneumatic spring telescopic rod via an air source pipeline.

[0024] In some possible implementations, both the pneumatic turning motor and the pneumatic starter motor are provided with a stop button, which is used to stop the pneumatic turning motor or the pneumatic starter motor from rotating.

[0025] In some possible implementations, the integrated drive unit further includes:

[0026] A frame on which the engine is mounted;

[0027] A motor mounting bracket is mounted on the frame.

[0028] The pneumatic turning gear motor is mounted on the motor mounting base and located on one side of the engine, and the pneumatic starter motor is mounted on the motor mounting base and located on the same side as the pneumatic turning gear motor. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an integrated transmission device for engine turning and starting according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the air circuit connection of an integrated transmission device for engine turning and starting according to an embodiment of the present invention.

[0031] In the diagram: 1. Pressure reducing valve; 2. Solenoid valve; 3. Pneumatic turning motor; 31. First output shaft; 4. First gear; 5. Pneumatic starter motor; 51. Second output shaft; 6. Second gear; 7. Main control valve; 8. Filter; 91. Inlet pipe; 92. First outlet pipe; 93. Second outlet pipe; 94. First control valve; 95. Second control valve; 10. Air source pipe; 11. Frame; 12. Motor mount; 100. Engine; 101. Starter gear ring. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0036] See appendix Figure 1 and 2 As shown, an embodiment of this utility model provides an integrated transmission device for engine turning and starting, including a pressure reducing valve 1, a solenoid valve 2, a pneumatic turning motor 3, a first gear 4, a pneumatic starter motor 5, and a second gear 6.

[0037] Pressure reducing valve 1 has an inlet and an outlet that are connected to each other, and the inlet of pressure reducing valve 1 is connected to an air source; solenoid valve 2 has an inlet end and a first outlet end and a second outlet end that are respectively connected to the inlet end, and the inlet end of solenoid valve 2 is connected to the outlet of pressure reducing valve 1.

[0038] The air source is a high-pressure air source, and its air pressure value can be adjusted to a preset value through the pressure reducing valve 1. This preset value can provide a safe and necessary power source for the subsequent pneumatic turning motor 3 and pneumatic starter motor 5.

[0039] It is worth noting that both the pneumatic turning motor 3 and the pneumatic starter motor 5 are pneumatic motors, which are actuators that convert the pressure of compressed air into rotational mechanical energy. Commonly used pneumatic motors are positive displacement pneumatic motors, which utilize changes in the volume of their working chamber to perform work; these include vane type, piston type, and gear type, among others. The pneumatic motor in this embodiment can be a gear type pneumatic motor.

[0040] A pneumatic turning motor 3 is located on one side of the engine 100. The pneumatic turning motor 3 has a first air inlet and an air outlet that are connected to each other. The first air inlet of the pneumatic turning motor 3 is connected to the first air outlet of the solenoid valve 2. A first gear 4 is connected to the first output shaft 31 of the pneumatic turning motor 3 (the first gear 4 is sleeved on the first output shaft 31). The first gear 4 meshes with the starting gear ring 101 of the engine 100. Driven by the pneumatic turning motor 3, the first gear 4 drives the starting gear ring 101 of the engine 100 to rotate, so that the engine 100 enters the turning mode.

[0041] By switching the solenoid valve 2, the pipeline between the air inlet and the first air outlet of the solenoid valve 2 is connected, while the pipeline between the air inlet and the second air outlet is closed. In this way, the air source provides a power source for the pneumatic turning motor 3, enabling the pneumatic turning motor 3 to enter the turning mode. The pneumatic turning motor 3 drives the first gear 4 to rotate, transmitting torque to the starting gear ring 101 of the engine 100 that meshes with it, thereby realizing the turning of the engine 100.

[0042] It should be noted that the opening degree of the pressure reducing valve 1 can control the amount of gas flow entering the pneumatic turning motor 3, thereby enabling the pneumatic turning motor 3 to have different speeds to match the different turning power of the engine 100, and to achieve low-speed turning of the engine 100.

[0043] The pneumatic starter motor 5 and the pneumatic turning motor 3 are located on the same side to save installation space and facilitate integrated transmission. The pneumatic starter motor 5 has a connected air inlet and outlet. The air inlet of the pneumatic starter motor 5 is connected to the second air outlet of the solenoid valve 2. The second gear 6 is connected to the second output shaft 51 of the pneumatic starter motor 5 (the second gear 6 is sleeved on the second output shaft 51 of the pneumatic starter motor 5). The second gear 6 meshes with the starting gear ring 101 of the engine 100 through the linear motion of the second output shaft 51. Driven by the pneumatic starter motor 5, the second gear 6 drives the starting gear ring 101 of the engine 100 to rotate, so that the engine 100 enters the starting mode.

[0044] By switching the solenoid valve 2, the pipeline between the air inlet and the first air outlet of the solenoid valve 2 is closed, while the pipeline between the air inlet and the second air outlet is connected. In this way, the air source provides a power source for the pneumatic starter motor 5, enabling the pneumatic starter motor 5 to enter the starting mode. First, through the linear drive of the second output shaft 51, the second gear 6 is driven to mesh with the starting gear ring 101 of the engine 100. Then, the pneumatic starter motor 5 drives the second gear 6 to rotate, transmitting torque to the starting gear ring 101 of the engine 100 that is meshed with it, thereby starting the engine 100.

[0045] It should be noted that the opening degree of the pressure reducing valve 1 can control the amount of gas flow entering the pneumatic turning motor 3, thereby enabling the pneumatic turning motor 3 to have different speeds to match the different starting power of the engine 100, achieving high-speed starting of the engine 100 and achieving the effect of low speed and high torque.

[0046] The integrated transmission device of this utility model controls the gas flow into the pneumatic turning motor 3 by switching the solenoid valve 2 to control the opening of the pressure reducing valve 1, thus controlling the speed of the pneumatic turning motor 3 to match the turning power of the engine 100. At this speed, the pneumatic turning motor 3 drives the first gear 4 to rotate the starting gear ring 101 of the engine 100, transmitting torque to the starting gear ring 101 of the engine 100, achieving low-speed turning of the engine 100. By switching the solenoid valve 2 to control the opening of the pressure reducing valve 1, the gas flow into the pneumatic starter motor 5 is controlled, so that the speed of the pneumatic starter motor 5 can match the turning power of the engine 100. At this speed, the pneumatic starter motor 5 drives the second gear 6 to rotate the starting gear ring 101 of the engine 100, transmitting torque to the starting gear ring 101 of the engine 100, achieving high-speed starting of the engine 100.

[0047] By integrating the turning and starting of the engine 100 into a single transmission, the problems of large installation and operating space and complex control, which are caused by the starting and turning devices being performed by two separate systems in the prior art, are overcome. It also avoids the problem of poor speed tracking of a single pneumatic motor when frequently switching between turning and starting operation modes, resulting in excessively high turning speed or insufficient starting speed. This improves operational safety and reduces fatigue damage to gears or bearings.

[0048] In one feasible implementation, the integrated transmission device further includes a main control valve 7 disposed between the solenoid valve 2 and the pressure reducing valve 1. The main control valve 7 has an inlet and an outlet that are interconnected. The inlet of the main control valve 7 is connected to the pressure reducing valve 1, and the outlet of the main control valve 7 is connected to the inlet of the solenoid valve 2.

[0049] The main control valve 7 is crucial for ensuring that the air source can enter the pneumatic turning motor 3 and the pneumatic starter motor 5. By centrally controlling the on / off of the air source, the safe and stable operation of the integrated transmission device is ensured.

[0050] In some feasible implementations, the integrated drive also includes a filter 8 disposed between the pressure reducing valve 1 and the air source, the filter 8 having an inlet and an outlet that are interconnected, the inlet of the filter 8 being connected to the air source, and the outlet of the filter 8 being connected to the inlet of the pressure reducing valve 1.

[0051] The filter 8 can purify the air source, remove impurities and particles from the air source, and prevent impurities and particles from causing scratches or dents in the pneumatic motor and accelerating mechanical wear.

[0052] In some feasible implementations, the solenoid valve 2 also has a third outlet end connected to the inlet end of the solenoid valve 2; the second output shaft 51 of the pneumatic starter motor 5 is a pneumatic spring telescopic rod, which has an inlet end and an outlet end, and the inlet end of the pneumatic spring telescopic rod is connected to the third outlet end of the solenoid valve 2; the second gear 6 is sleeved on the telescopic end of the pneumatic spring telescopic rod, and is used to mesh with the starter gear ring 101 of the engine 100 under the linear drive of the pneumatic spring telescopic rod.

[0053] By switching the solenoid valve 2, the pipeline between the air inlet end and the third air outlet end of the solenoid valve 2 is connected. Under the drive of the air source pressure, the pneumatic spring telescopic rod drives the second gear 6 to move linearly, approach the starting gear ring 101 of the engine 100, and mesh with it.

[0054] In some feasible implementations, the pneumatic turning motor 3 also has a second air inlet connected to the first air inlet and air outlet of the pneumatic turning motor 3, and the integrated transmission device also includes a pipeline assembly.

[0055] The pipeline assembly includes an air inlet pipe 91, a first air outlet pipe 92, and a second air outlet pipe 93. One end of the air inlet pipe 91 is connected to one end of the first air outlet pipe 92 and one end of the second air outlet pipe 93, respectively. The other end of the first air outlet pipe 92 is connected to the first air inlet of the pneumatic turning motor 3, and the other end of the second air outlet pipe 93 is connected to the second air inlet of the pneumatic turning motor 3. The other end of the air inlet pipe 91 is connected to the first air outlet of the solenoid valve 2.

[0056] It should be noted that a first control valve 94 is provided on the first air outlet pipe 92 to control its on / off state, and a second control valve 95 is provided on the second air outlet pipe 93 to control its on / off state.

[0057] With the inlet end of solenoid valve 2 connected to the first outlet end, the first outlet pipe 92 is connected by controlling the switch of the first control valve 94, and the second outlet pipe 93 is cut off by controlling the switch of the second control valve 95. This allows the air source to enter the first inlet of the pneumatic turning motor 3 through the first outlet pipe 92. Driven by the air source pressure, the gas flows from the first inlet to the outlet, at which point the pneumatic turning motor 3 rotates forward. The first outlet pipe 92 is connected by controlling the switch of the second control valve 95, and the first outlet pipe 92 is cut off by controlling the switch of the first control valve 94. This allows the air source to enter the second inlet of the pneumatic turning motor 3 through the second outlet pipe 93. Driven by the air source pressure, the gas flows from the second inlet to the outlet, at which point the pneumatic turning motor 3 rotates in reverse, ensuring that the first gear 4 meshes with the starting gear ring 101 of the engine 100.

[0058] In some feasible implementations, the air outlet of the pneumatic turning motor 3 is connected to the air outlet of the pneumatic spring telescopic rod through the air source pipeline 10.

[0059] Since the second gear 6 meshes with the starting gear ring 101 of the engine 100 after the engine 100 is started, the engine 100 needs to be rotated before the next start. When the engine 100 is rotated, due to the presence of the air supply line 10, gas flows from the air outlet of the pneumatic rotating motor 3 to the air outlet of the pneumatic spring telescopic rod. Under this air pressure, the second gear 6 retracts along with the telescopic end of the pneumatic spring telescopic rod and separates from the starting gear ring 101 of the engine 100, ensuring that the second gear 6 will not affect the rotation of the engine 100.

[0060] In some feasible implementations, both the pneumatic turning motor 3 and the pneumatic starter motor 5 are provided with a stop button, which is used to stop the pneumatic turning motor 3 or the pneumatic starter motor 5 from rotating.

[0061] The stop button is used for emergency braking and equipment protection. Pressing the stop button can instantly cut off the air supply and force the pneumatic motor to stop running. It can deal with sudden mechanical failures or personnel operation risks, and avoid equipment damage or personal injury. It is especially suitable for emergency scenarios such as motor jamming, abnormally increased load, or loss of control of moving parts.

[0062] In some feasible implementations, the integrated drive also includes a frame 11 and a motor mount 12.

[0063] The engine 100 is fixedly connected to the frame 11 by bolts, and the motor mounting bracket 12 is fixedly connected to the frame 11 by bolts.

[0064] Furthermore, the pneumatic turning motor 3 is fixed to the motor mounting base 12 by bolts and is located on one side of the engine 100, and the pneumatic starter motor 5 is fixed to the motor mounting base 12 by bolts and is located on the same side as the pneumatic turning motor 3.

[0065] The above connection relationship ensures the positional relationship of the first gear 4 and the second gear 6 meshing with the starting gear ring 101 of the engine 100, realizing the integrated application of engine 100 turning and starting, saving installation space.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. An integrated transmission device for turning and starting an engine (100), characterized in that, include: Pressure reducing valve (1) has an air inlet and an air outlet that are connected to each other, and the air inlet of the pressure reducing valve (1) is connected to an air source. The solenoid valve (2) has an air inlet end and a first air outlet end and a second air outlet end respectively connected to the air inlet end. The air inlet end of the solenoid valve (2) is connected to the air outlet of the pressure reducing valve (1). The pneumatic turning motor (3) has a first air inlet and an air outlet connected together. The pneumatic turning motor (3) is located on one side of the engine (100). The first air inlet of the pneumatic turning motor (3) is connected to the first air outlet of the solenoid valve (2). The first gear (4) is connected to the first output shaft (31) of the pneumatic turning motor (3). The first gear (4) meshes with the starting gear ring (101) of the engine (100). Under the drive of the pneumatic turning motor (3), the first gear (4) drives the starting gear ring (101) of the engine (100) to rotate, so that the engine (100) enters the turning mode. The pneumatic starter motor (5) has an air inlet and an air outlet connected together. The pneumatic starter motor (5) and the pneumatic turning motor (3) are located on the same side. The air inlet of the pneumatic starter motor (5) is connected to the second air outlet of the solenoid valve (2). The second gear (6) is connected to the second output shaft (51) of the pneumatic starter motor (5). The second gear (6) meshes with the starter gear ring (101) of the engine (100). Under the drive of the pneumatic starter motor (5), the second gear (6) drives the starter gear ring (101) of the engine (100) to rotate, so that the engine (100) enters the start mode.

2. The integrated transmission device according to claim 1, characterized in that, It also includes a main control valve (7) disposed between the solenoid valve (2) and the air source. The main control valve (7) has an inlet and an outlet that are interconnected. The inlet of the main control valve (7) is connected to the outlet of the pressure reducing valve (1), and the outlet of the main control valve (7) is connected to the inlet of the solenoid valve (2).

3. The integrated transmission device according to claim 2, characterized in that, It also includes a filter (8) disposed between the pressure reducing valve (1) and the air source. The filter (8) has an air inlet and an air outlet that are connected to each other. The air inlet of the filter (8) is connected to the air source, and the air outlet of the filter (8) is connected to the air inlet of the pressure reducing valve (1).

4. The integrated transmission device according to claim 1, characterized in that, The solenoid valve (2) also has a third outlet end connected to the inlet end of the solenoid valve (2); the second output shaft (51) of the pneumatic starter motor (5) is a pneumatic spring telescopic rod, which has an inlet end and an outlet end, and the inlet end of the pneumatic spring telescopic rod is connected to the third outlet end of the solenoid valve (2); the second gear (6) is sleeved on the telescopic end of the pneumatic spring telescopic rod and is used to mesh with the starter gear ring (101) of the engine (100) under the linear drive of the pneumatic spring telescopic rod.

5. The integrated transmission device according to any one of claims 1-4, characterized in that, The pneumatic turning motor (3) also has a second air inlet connected to the first air inlet and the air outlet of the pneumatic turning motor (3), and the integrated transmission device also includes a pipeline assembly; The piping assembly includes an air inlet pipe (91), a first air outlet pipe (92), and a second air outlet pipe (93). One end of the air inlet pipe (91) is connected to one end of the first air outlet pipe (92) and one end of the second air outlet pipe (93), respectively. The other end of the first air outlet pipe (92) is connected to the first air inlet of the pneumatic turning wheel motor (3), and the other end of the second air outlet pipe (93) is connected to the second air inlet of the pneumatic turning wheel motor (3). The other end of the air inlet pipe (91) is connected to the first air outlet of the solenoid valve (2). The first air outlet pipe (92) is provided with a first control valve (94) to control its opening and closing, and the second air outlet pipe (93) is provided with a second control valve (95) to control its opening and closing.

6. The integrated transmission device according to claim 4, characterized in that, The air outlet of the pneumatic turning motor (3) is connected to the air outlet of the pneumatic spring telescopic rod through an air source pipeline (10).

7. The integrated transmission device according to claim 1, characterized in that, Both the pneumatic turning motor (3) and the pneumatic starter motor (5) are equipped with a stop button, which is used to stop the pneumatic turning motor (3) or the pneumatic starter motor (5) from rotating.

8. The integrated transmission device according to claim 1, characterized in that, Also includes: A frame (11) on which the engine (100) is mounted; Motor mounting base (12), the motor mounting base (12) is mounted on the frame (11); The pneumatic turning wheel motor (3) is mounted on the motor mounting base (12) and located on one side of the engine (100). The pneumatic starter motor (5) is mounted on the motor mounting base (12) and located on the same side as the pneumatic turning wheel motor (3).

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