Rapid emergency stop device

Abstract

The invention belongs to the field of machine manufacturing, and discloses a quick emergency stop device which comprises a shell, a first driving device, a second driving device and a third driving device. The oil adjusting rod penetrates through the shell and is used for adjusting the oil supply amount of the engine; one end of the swinging part is fixedly connected with the oil adjusting rod, and the other end of the swinging part extends into the accommodating cavity; the air supply structure is arranged in the containing cavity, and along with increase of air entering the containing cavity, the air supply structure drives the swing component to rotate, then the oil adjusting rod is driven to rotate, and the oil supply amount is adjusted. And along with air supply of the air supply structure, the oil quantity in the containing cavity is directly reduced, meanwhile, the oil adjusting rod is driven to achieve oil quantity adjustment, the oil reducing speed is increased, and therefore rapid parking is achieved.

Description

Technical Field

[0001] The invention belongs to the field of mechanical manufacturing and relates to a rapid emergency parking device. Background Art

[0002] Usually, the engine shutdown of the mechanical fuel system is achieved through the speed control mechanism, that is, the air is controlled to push the rack on the fuel injection pump to stop the fuel supply to achieve shutdown. In addition, some engines also use manual parking devices to achieve emergency shutdown.

[0003] Among them, the method of controlling the air to push the fuel injection pump rack, and then driving the oil adjustment rod to rotate, and finally realizing the emergency stop of the engine requires a long stop time, and needs to go through the whole process from normal fuel supply, reduced fuel supply to stop fuel supply, and cannot be used in some occasions that require quick stop. The manual parking device needs to be completed manually, and it needs to be completed manually on site, which will take longer. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a rapid emergency parking device.

[0005] In order to achieve the above object, the technical solution of the present invention is to provide a rapid emergency parking device, which includes:

[0006] The shell has a containing cavity.

[0007] An oil regulating rod, which passes through the housing and is used to adjust the oil supply of the engine;

[0008] A swing component, one end of which is fixedly connected to the oil regulating rod and the other end of which extends into the accommodating cavity;

[0009] The air supply structure is arranged in the accommodating cavity. As the air supply structure gradually approaches the swing component and continues to move linearly after contact, it applies thrust to the swing component, drives the swing component to rotate, and then drives the oil regulating rod to rotate, thereby realizing the adjustment of the oil supply amount.

[0010] With the air supply from the air supply structure, the piston is pushed to move, which then drives the rocker arm to rotate, and at the same time drives the oil regulating rod to rotate to adjust the oil volume, speed up the oil reduction speed, and thus achieve quick parking.

[0011] According to the present invention, further, the air supply component includes a piston disposed in the accommodating cavity and coaxially disposed therewith to push the swing component to rotate, and the piston is connected to an external air supply pipeline; the external air supply pipeline is provided with a solenoid valve to control its on and off. The pneumatic structure is adopted to control the air through the solenoid valve to realize the quick parking function, eliminating the original process of pushing the fuel injection pump rack and shortening the parking time.

[0012] According to the present invention, further, one end of the piston is connected to a joint, and the joint has an air circulation channel. One end of the air circulation channel is connected to the accommodating cavity, and the other end serves as an air inlet that penetrates the end face of the joint, so that external air passes through the air inlet and then enters the accommodating cavity through the air circulation channel, and transports air to the accommodating cavity.

[0013] According to the present invention, further, the end surface of the shell is provided with an end cover, and the joint is connected to the end cover, which is convenient for replacement and maintenance of the joint.

[0014] According to the present invention, further, the swing component is a rocker arm.

[0015] According to the present invention, further, the outer contour of the rocker arm is conical, and the end with a smaller outer contour area extends into the accommodating cavity.

[0016] According to the present invention, further, the rocker arm and the oil regulating rod are connected by welding, key connection or riveting.

[0017] According to the present invention, further, a limit screw is arranged in the shell, and the axis is perpendicular to the axial direction of the oil regulating rod, and one end of the limit screw points to the swinging part; during the normal operation of the engine, the end of the limit screw does not contact the swinging part; when the engine needs to be stopped, the swinging part rotates until it contacts the limit screw, and then stops rotating.

[0018] According to the present invention, further, the swing component is a rocker arm, the outer contour of the rocker arm is conical, and the end with a smaller outer contour area extends into the accommodating cavity; during normal operation of the engine, the end of the limit screw corresponds to the inclined surface position of the rocker arm and does not contact; when the vehicle needs to be stopped, the outer wall of the rocker arm with a larger contour area rotates until it contacts the end of the limit screw, and then stops rotating.

[0019] According to the present invention, further, a dial with a pointer is fixedly connected to the end face of the shell, the oil regulating rod passes through the dial, the pointer and the oil regulating rod are integrated into one structure, and cooperate with the scale position of the dial to display the load status of the engine.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention is easy to operate, simple in structure, highly reliable and convenient to install and disassemble.

[0022] 2. The piston movement applies a driving force to the rocker arm, which drives the rocker arm to rotate, and then drives the oil regulating rod to adjust the oil supply. This eliminates the transmission process of the original parking device that controls the air to drive the injection pump rack, achieves rapid emergency parking, increases parking speed, and is more suitable for situations where emergency parking is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a rapid emergency parking device of the present invention;

[0024] Figure 2 It is a schematic diagram of the assembly structure of the dial, pointer and oil regulating rod of the present invention;

[0025] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure.

[0026] In the accompanying drawings,

[0027] 100- bracket, 200- housing, 210- end cover, 220- limit screw, 300- oil adjustment rod, 400- rocker arm, 500- piston, 600- joint, 610- air circulation channel, 700- dial. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0029] See also Figure 1 , is a structural schematic diagram of a rapid emergency stop device, which is used to control the engine to achieve emergency stop, and includes a bracket 100 fixedly connected to the engine, a housing 200 with a receiving cavity is fixedly connected to the bracket 100, and an air supply structure is arranged in the receiving cavity; when the engine needs to be stopped, the air supply structure is started to increase the air in the receiving cavity, and the air supply structure drives the rocker arm 400 described below to rotate, and then drives the oil adjustment rod 300 described below to rotate, so as to achieve the purpose of rapid oil reduction; an oil adjustment rod 300 for controlling the oil supply of the engine is also arranged above the receiving cavity, and a rocker arm 400 is arranged on the periphery of the oil adjustment rod 300, and the connection mode between the oil adjustment rod 300 and the rocker arm 400 is preferably a key connection, and integral welding or riveting can also be selected to realize the two as an integral structure, so that the oil adjustment rod 300 rotates with the rocker arm 400; during the process of supplying air, the air supply structure drives the rocker arm 400 to drive the oil adjustment rod 300 to rotate to zero, stops oil supply, and realizes engine stop.

[0030] Specifically, the air supply structure includes a piston 500 disposed in the accommodating cavity and coaxially disposed therewith. The piston 500 moves toward the Figure 1 and Figure 3 The right side of the accommodating cavity shown in the figure moves, exerting a thrust on the rocker arm 400, pushing the rocker arm 400 to drive the oil regulating rod 300 to rotate counterclockwise, so that the oil supply returns to zero, thereby achieving parking.

[0031] In this embodiment, an end cover 210 is provided on the end face of the housing 200, and a connector 600 connected to an external air supply pipeline is provided on one side of the end cover 210, and an air circulation channel 610 is provided inside the connector 600, one end of the air circulation channel 610 is connected to the accommodating cavity, and the other end is used as an air inlet to penetrate the end face of the connector 600, so that the external air passes through the air inlet and then enters the accommodating cavity through the air circulation channel 610, and transports air therein, and the air in the accommodating cavity gradually increases, pushing the piston 500 to move rightward in a straight line, applying thrust to the rocker arm 400, pushing the rocker arm 400 to drive the oil regulating rod 300 to rotate counterclockwise, so that the oil supply amount returns to zero, and an emergency stop is achieved. In the parking process, air directly enters the accommodating cavity, and the amount of oil supplied by the oil regulating rod 300 is changed through the piston 500, eliminating the transmission process of the original parking device that controls the air to drive the rack of the fuel injection pump, achieving a rapid emergency stop, improving the parking speed, and being more suitable for occasions where an emergency stop is required.

[0032] In this embodiment, the outer contour of the rocker arm 400 is conical, and the end with a smaller outer contour area extends into the accommodating cavity. The piston 500 contacts this end during movement and pushes this end to drive the rocker arm 400 to rotate. The end with a larger outer contour area has a mounting hole for accommodating the oil regulating rod 300, and the oil regulating rod 300 is fixedly installed in the mounting hole so that the two can move synchronously. As the air in the accommodating cavity increases, the piston 500 pushes the rocker arm 400 to swing, and the rocker arm 400 drives the oil regulating rod 300 to rotate until the oil regulating rod 300 gradually returns to zero, stops supplying oil to the engine, and achieves emergency stop.

[0033] In this embodiment, in order to prevent the rocker arm 400 from rotating too much and exceeding the rotation angle of the oil regulating rod 300, a limit screw 220 whose axis is perpendicular to the axis of the oil regulating rod 300 is provided in the housing 200, and one end of the limit screw 220 points to the rocker arm 400. During normal operation of the engine, the end of the limit screw 220 corresponds to the inclined surface position of the rocker arm 400 and does not contact it. When the engine needs to be stopped, the rocker arm 400 rotates counterclockwise, and the outer wall of the rocker arm 400 with a larger contour area rotates until it contacts the end of the limit screw 220. The limit screw 220 prevents the rocker arm 400 from continuing to rotate. At this time, the oil regulating rod 300 is in the zero position and the oil supply is stopped. The setting of the limit screw 220 can limit the rotation of the oil regulating rod 300.

[0034] In order to improve the degree of automation of emergency parking, a solenoid valve (not shown in the figure) is set on the air supply pipeline; when the solenoid valve is energized, the air is controlled to pass through the air pipeline, and then flow to the accommodating cavity through the air circulation channel 610 of the joint, pushing the piston 500 to move straight to the right. After the piston moves a certain distance, it contacts the end of the rocker arm 400 with a smaller outer contour area, driving the rocker arm 400 and the oil regulating rod 300 to rotate, so that the engine is in a reduced oil state. As the air supply continues, the rocker arm 400 and the oil regulating rod 300 rotate to the position of the limit screw 220, and the engine is stopped.

[0035] like Figure 2 As shown, a dial 700 with a pointer is fixedly connected to the end face of the housing 200, and the oil regulating rod 300 passes through the dial 700. The pointer and the oil regulating rod 300 are connected together by a spline, and cooperate with the scale position of the dial 700 to display the load status of the engine.

[0036] The above is only a preferred embodiment of the present invention, and is not any formal or substantial limitation of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present invention, can make some changes, modifications and equivalent changes made by using the technical content disclosed above, which are equivalent embodiments of the present invention; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rapid emergency stop device, in, include, A housing having a receiving cavity; An oil regulating rod, which passes through the housing and is used to adjust the oil supply of the engine; A swing component, one end of which is fixedly connected to the oil regulating rod and the other end of which extends into the accommodating cavity; The air supply structure is arranged in the accommodating cavity. As the air supply structure gradually approaches the swing component and continues to move linearly after contact, a thrust is applied to the swing component. The air supply structure drives the swing component to rotate, and then drives the oil regulating rod to rotate, thereby realizing the adjustment of the oil supply amount.

2. A rapid emergency stop device as claimed in claim 1, in, The air supply component includes a piston disposed in the accommodating cavity and coaxially disposed therewith to push the swinging component to rotate, and the piston is connected to an external air supply pipeline; the external air supply pipeline is provided with a solenoid valve to control its on and off.

3. A rapid emergency stop device as claimed in claim 2, in, One end of the piston is connected to a joint, and the joint has an air circulation channel. One end of the air circulation channel is connected to the accommodating cavity, and the other end serves as an air inlet that penetrates the end face of the joint, so that external air passes through the air inlet and then enters the accommodating cavity through the air circulation channel, and transports air to the accommodating cavity.

4. A rapid emergency stop device as claimed in claim 3, in, An end cover is provided on the end surface of the shell, and the joint is connected to the end cover.

5. A rapid emergency stop device as claimed in claim 1, in, The swing component is a rocker arm.

6. A rapid emergency stop device as claimed in claim 5, in, The outer contour of the rocker arm is conical, and the end with a smaller outer contour area extends into the accommodating cavity.

7. A rapid emergency stop device as claimed in claim 5, in, The rocker arm and the oil regulating rod are connected by welding, key connection or riveting.

8. A rapid emergency stop device as claimed in claim 1, in, A limit screw with an axis perpendicular to the axial direction of the oil regulating rod is arranged in the shell, and one end of the limit screw points to the swinging part; during normal operation of the engine, the end of the limit screw does not contact the swinging part; when the engine needs to be stopped, the swinging part rotates until it contacts the limit screw and stops rotating.

9. A rapid emergency stop device as claimed in claim 8, in, The swing component is a rocker arm, and the outer contour of the rocker arm is conical, and the end with a smaller outer contour area extends into the accommodating cavity; during normal operation of the engine, the end of the limit screw corresponds to the inclined surface position of the rocker arm and does not contact; when the car needs to be stopped, the outer wall of the rocker arm with a larger contour area rotates until it contacts the end of the limit screw, and then stops rotating.

10. A rapid emergency stop device as claimed in claim 1, in, The end surface of the shell is also fixedly connected with a dial with a pointer, the oil regulating rod passes through the dial, the pointer and the oil regulating rod are integrated into one structure, and cooperate with the scale position of the dial to display the load status of the engine.

Images