Flexible transmission device for engine output shaft and engine

Abstract

The present invention discloses an engine output shaft flexible transmission device and an engine, wherein the engine output shaft flexible transmission device comprises: an engine, an output shaft, a protection component, a flexible transmission component, a motor component and a detection component. The engine output shaft flexible transmission device and the engine provided by the present application adopt a flexible transmission component to transmit the power provided by the engine. When the engine is suddenly started, the flexible transmission component has a certain buffering performance, so it will not exert a large reaction force on the output shaft, thereby reducing the probability of its breakage, and can also output a mild force to slowly start the motor.

Description

Technical Field

[0001] The invention belongs to the field of engines and relates to a flexible transmission device for an engine output shaft and an engine. Background Art

[0002] The power provided by the engine is output to the connecting device through the output shaft, and then output to the motor through the connecting device to drive the motor to rotate. At present, this connecting device is often a swing block and cup type, and the swing block has strong rigidity, which leads to strong rigidity of the output power. When the engine is suddenly started, the output shaft and the swing block will be affected by the high starting speed of the engine, and due to inertia, the motor and the cup will not start suddenly, which will cause the swing block and the cup to rotate relative to each other, thereby damaging the swing block and the cup. This sudden start and stop of the engine will also have a certain impact on the engine and the motor.

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: a relatively rigid swing block is used on the engine, the output power is not gentle enough, and the output shaft is easily damaged, affecting the engine and the motor. Summary of the invention

[0004] In view of this, an object of the present invention is to provide an engine output shaft flexible transmission device and an engine.

[0005] The inventor has continuously innovated and reformed through long-term exploration and attempts, as well as multiple experiments and efforts. To solve the above technical problems, the present invention provides a technical solution, which is to provide an engine output shaft flexible transmission device, including:

[0006] An engine, for providing power; the engine comprises an output shaft;

[0007] A protection component, used to provide an installation space to protect the flexible transmission component and the motor component; the protection component is connected to the engine and together with the engine, forms the installation space inside the two components;

[0008] A flexible transmission component, used for flexibly transmitting the power provided by the output shaft to the motor component; the flexible transmission component is arranged in the installation space and connected to the output shaft;

[0009] A motor assembly, used to receive power provided by the engine; the motor assembly is arranged in the installation space and connected to the flexible transmission assembly;

[0010] A detection component is used to detect the output shaft; the detection component is connected to the engine and is close to the output shaft.

[0011] Preferably, the engine has a connecting wall opposite to the protection component, and the connecting wall is connected to the protection component.

[0012] Preferably, the protection assembly comprises: a bottom shell and an outer shell, the bottom shell is connected to a connecting wall on the engine, the outer shell and the bottom shell are connected to each other, and the installation space is formed therebetween.

[0013] Preferably, a wall positioning hole is provided on the connecting wall, a shell positioning hole is provided on the bottom shell, and a positioning screw is screwed between the wall positioning hole and the shell positioning hole.

[0014] Preferably, the flexible transmission component includes: a connecting sleeve, a fixing sleeve, a bearing, a connecting ring, a fixing block and a buffer spring, wherein a clamping hole is provided on the connecting sleeve, the connecting sleeve has a first surface facing the engine and a second surface facing the motor assembly, a clamping ring is formed on the first surface at the edge of the clamping hole extending toward the engine, and a mounting ring is formed on the second surface at the edge of the clamping hole extending toward the motor assembly, the connecting sleeve and the fixing sleeve are connected to each other, and a receiving space is formed inside the two, the bearing is arranged in the receiving space and sleeved on the mounting ring, the connecting ring is arranged in the receiving space and sleeved on the bearing, the fixing block is fixed on the connecting sleeve, the first end of the buffer spring is connected to the connecting ring and the second end is opposite to the fixing block, the output shaft passes through the clamping ring and the clamping hole in sequence and is clamped in the clamping hole, and when the output shaft rotates, the fixing block moves toward the connecting ring and compresses the buffer spring together with it.

[0015] Preferably, a protruding arm is extended outwardly from the connecting ring, and a protruding column is formed on the protruding arm and extends toward the fixed block. The first end of the buffer spring is sleeved on the protruding column and the second end is opposite to the fixed block. When the output shaft rotates, the fixed block moves toward the protruding column and compresses the buffer spring together with it.

[0016] Preferably, a receiving groove is provided on the fixing block, and when the output shaft rotates, the fixing block moves toward the boss, and the second end of the buffer spring gradually enters the receiving groove and abuts against the inner wall thereof.

[0017] Preferably, the motor assembly comprises: a connecting block and a motor, wherein the connecting block extends toward the side of the fixed sleeve in the flexible transmission assembly to form a clamping block, a clamping hole is provided on the side of the fixed sleeve, the clamping block is fixed in the clamping hole, and the connecting block is connected to the motor.

[0018] Preferably, the detection assembly comprises: a mounting frame, a sensor and an induction ring, wherein the mounting frame is connected to the engine, the sensor is connected to the mounting frame, and the induction ring is connected to the sensor and is sleeved on the output shaft.

[0019] The present application also provides an engine, comprising an engine output shaft flexible transmission device as described in any one of the above.

[0020] Compared with the prior art, one of the above technical solutions has the following advantages:

[0021] The present application provides a flexible transmission device for an engine output shaft and an engine, which use a flexible transmission component to transmit the power provided by the engine. When the engine is suddenly started, the flexible transmission component will not exert a large reaction force on the output shaft due to its own buffering performance, thereby reducing the probability of its breakage. At the same time, it can also output a mild force to slowly start the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of a flexible transmission device for an engine output shaft provided by the present invention;

[0024] Figure 2 It is an exploded schematic diagram of a flexible transmission device for an engine output shaft provided by the present invention;

[0025] Figure 3 It is an exploded schematic diagram of a flexible transmission device for an engine output shaft provided by the present invention. DETAILED DESCRIPTION

[0026] The following is a description with reference to the accompanying drawings and a specific embodiment.

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in the subsequent drawings.

[0029] like Figure 1-3 In an embodiment of the present application, the present application provides an engine output shaft flexible transmission device, including: an engine 100, an output shaft 200, a protection component 300, a flexible transmission component 400, a motor component 500 and a detection component 600, and each part is described in detail below.

[0030] like Figure 1-3 In an embodiment of the present application, the present application provides an engine output shaft flexible transmission device, comprising:

[0031] The engine 100 is used to provide power; the engine 100 includes an output shaft 200;

[0032] The protection component 300 is used to provide an installation space to protect the flexible transmission component 400 and the motor component 500; the protection component 300 is connected to the engine 100 and together with the engine 100, forms the installation space inside the two.

[0033] A flexible transmission component 400, used for flexibly transmitting the power provided by the output shaft 200 to the motor component 500; the flexible transmission component 400 is arranged in the installation space and connected to the output shaft 200;

[0034] The motor assembly 500 is used to receive the power provided by the engine 100; the motor assembly 500 is arranged in the installation space and connected to the flexible transmission assembly 400;

[0035] The detection component 600 is used to detect the output shaft 200 ; the detection component 600 is connected to the engine 100 and is close to the output shaft 200 .

[0036] When the engine output shaft flexible transmission device is working, the engine 100 starts and outputs power to the output shaft 200, and the output shaft 200 drives the flexible transmission component 400 to rotate. Since the flexible transmission component 400 itself has a flexible structure, the power of the output shaft 200 can be slowly transmitted to the motor component 500. At the same time, the detection component 600 can detect the rotation speed of the output shaft 200 to feed back to the engine 100, and the engine 100 can adjust the rotation speed of the output shaft 200 accordingly.

[0037] like Figure 1-3 In the embodiment of the present application, the engine 100 has a connecting wall 101 opposite to the protection component 300, and the connecting wall 101 is connected to the protection component 300.

[0038] Specifically, Figure 1-3 In the embodiment of the present application, the protection assembly 300 includes: a bottom shell 301 and an outer shell 302. The bottom shell 301 is connected to the connecting wall 101 on the engine 100. The outer shell 302 is connected to the bottom shell 301 to form the installation space therebetween. The connecting wall 101 is provided with a wall positioning hole 102, and the bottom shell 301 is provided with an outer shell positioning hole 303. A positioning screw is tightened between the wall positioning hole 102 and the outer shell positioning hole 303.

[0039] In the embodiment of the present application, the protection component 300 can provide good protection for the internal flexible transmission component 400, the motor component 500 and the detection component 600, thereby avoiding impact and interference from other external devices.

[0040] like Figure 1-3In the embodiment of the present application, the flexible transmission component 400 includes: a connecting sleeve 401, a fixing sleeve 402, a bearing 403, a connecting ring 404, a fixing block 405 and a buffer spring 406, wherein the connecting sleeve 401 is provided with a clamping hole, the connecting sleeve 401 has a first surface facing the engine 100 and a second surface facing the motor assembly 500, a clamping ring 407 is formed on the first surface at the edge of the clamping hole extending toward the engine 100, and a mounting ring 408 is formed on the second surface at the edge of the clamping hole extending toward the motor assembly 500, the connecting sleeve 401 and the fixing sleeve 402 are connected to each other, An accommodating space is formed inside the two, the bearing 403 is arranged in the accommodating space and is sleeved on the mounting ring 408, the connecting ring 404 is arranged in the accommodating space and is sleeved on the bearing 403, the fixing block 405 is fixed on the connecting sleeve 401, the first end of the buffer spring 406 is connected to the connecting ring 404 and the second end is opposite to the fixing block 405, the output shaft 200 passes through the clamping ring 407 and the clamping hole in sequence and is clamped in the clamping hole, when the output shaft 200 rotates, the fixing block 405 moves toward the connecting ring 404, and compresses the buffer spring 406 together with it.

[0041] When the output shaft 200 rotates, it can drive the clamping ring 407 to rotate, and then drive the connecting sleeve 401 and the fixed block 405 to rotate. At this time, since the connecting ring 404 is sleeved on the bearing 403, the connecting ring 404 will not rotate at the same time as the connecting sleeve 401. When the fixed block 405 rotates toward the connecting ring 404, it will gradually approach and eventually compress the buffer spring 406, so that the connecting ring 404 rotates together and finally transmits power to the motor assembly 500.

[0042] like Figure 1-3 In the embodiment of the present application, the connecting ring 404 extends outward to form a protruding arm 409, and the protruding arm 409 extends toward the fixing block 405 to form a boss 410, and the first end of the buffer spring 406 is sleeved on the boss 410 and the second end is opposite to the fixing block 405. When the output shaft 200 rotates, the fixing block 405 moves toward the boss 410 and compresses the buffer spring 406 together with the boss 410. The boss 410 can limit the movement of the buffer spring 406 along itself and provide a direction for its movement.

[0043] like Figure 1-3In the embodiment of the present application, the fixing block 405 is provided with a receiving groove 411. When the output shaft 200 rotates, the fixing block 405 moves toward the boss 410, and the second end of the buffer spring 406 gradually enters the receiving groove 411 and abuts against the inner wall thereof. The receiving groove 411 can accommodate the buffer spring 406.

[0044] like Figure 1-3 In the embodiment of the present application, the motor assembly 500 includes: a connecting block 501 and a motor 502, wherein the connecting block 501 extends toward the side of the fixing sleeve 402 in the flexible transmission assembly 400 to form a clamping block 503, a clamping hole 412 is provided on the side of the fixing sleeve 402, the clamping block 503 is fixed in the clamping hole 412, and the connecting block 501 is connected to the motor 502. When the fixing sleeve 402 rotates, it drives the connecting block 501 to rotate together, and then drives the motor 502 to rotate together.

[0045] like Figure 1-3 In the embodiment of the present application, the detection component 600 includes: a mounting frame 601, a sensor 602 and an induction ring 603, wherein the mounting frame 601 is connected to the engine 100, the sensor 602 is connected to the mounting frame 601, and the induction ring 603 is connected to the sensor 602 and is sleeved on the output shaft 200. The induction ring 603 can sense the rotation speed of the output shaft 200 and send the detection value to the sensor 602, the sensor 602 can feed back the detection value to the engine 100, and the engine 100 can control the rotation speed of the output shaft 200 accordingly.

[0046] The present invention also provides an engine, comprising the above Figure 1-3 The engine output shaft flexible transmission device described in.

[0047] The present application provides a flexible transmission device for an engine output shaft and an engine, which use a flexible transmission component to transmit the power provided by the engine. When the engine is suddenly started, the flexible transmission component will not exert a large reaction force on the output shaft due to its own buffering performance, thereby reducing the probability of its breakage. At the same time, it can also output a mild force to slowly start the motor.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A flexible transmission device for an engine output shaft, characterized in that: include: Engine, protection components, flexible transmission parts, motor components and detection components; The engine is used to provide power; the engine includes an output shaft; the engine has a connecting wall opposite to the protection component, and the connecting wall is connected to the protection component; The protection assembly is used to provide an installation space to protect the flexible transmission assembly and the motor assembly; the protection assembly includes: a bottom shell and an outer shell, the bottom shell is connected to the connecting wall on the engine, and the outer shell and the bottom shell are connected to each other to form the installation space therebetween; The flexible transmission component is used to flexibly transmit the power provided by the output shaft to the motor component; the flexible transmission component is arranged in the installation space and is connected to the output shaft; the flexible transmission component includes: a connecting sleeve, a fixing sleeve, a bearing, a connecting ring, a fixing block and a buffer spring, wherein a clamping hole is provided on the connecting sleeve, and the connecting sleeve has a first surface facing the engine and a second surface facing the motor component, a clamping ring is formed on the first surface at the edge of the clamping hole extending toward the engine, and a clamping ring is formed on the second surface at the edge of the clamping hole extending toward the motor component A mounting ring is provided, the connecting sleeve and the fixing sleeve are connected to each other, and an accommodating space is formed therein, the bearing is arranged in the accommodating space and sleeved on the mounting ring, the connecting ring is arranged in the accommodating space and sleeved on the bearing, the fixing block is fixed on the connecting sleeve, the first end of the buffer spring is connected to the connecting ring and the second end is opposite to the fixing block, the output shaft passes through the clamping ring and the clamping hole in sequence and is clamped in the clamping hole, when the output shaft rotates, the fixing block moves toward the connecting ring and compresses the buffer spring together with the connecting ring; The motor assembly is used to receive power provided by the engine; the motor assembly is arranged in the installation space and connected to the flexible transmission assembly; The detection component is used to detect the output shaft; the detection component is connected to the engine and is close to the output shaft.

2. The engine output shaft flexible transmission device according to claim 1, characterized in that: The connecting wall is provided with a wall positioning hole, the bottom shell is provided with a shell positioning hole, and a positioning screw is screwed between the wall positioning hole and the shell positioning hole.

3. The engine output shaft flexible transmission device according to claim 2, characterized in that: A protruding arm is extended outward from the connecting ring, and a protruding column is formed on the protruding arm extending toward the fixed block. The first end of the buffer spring is sleeved on the protruding column and the second end is opposite to the fixed block. When the output shaft rotates, the fixed block moves toward the protruding column and compresses the buffer spring together with it.

4. The engine output shaft flexible transmission device according to claim 3, characterized in that: The fixing block is provided with an accommodating groove. When the output shaft rotates, the fixing block moves toward the boss, and the second end of the buffer spring gradually enters the accommodating groove and presses against the inner wall thereof.

5. The engine output shaft flexible transmission device according to claim 1, characterized in that: The motor assembly includes: a connecting block and a motor, wherein the connecting block extends toward the side of the fixed sleeve in the flexible transmission assembly to form a clamping block, a clamping hole is provided on the side of the fixed sleeve, the clamping block is fixed in the clamping hole, and the connecting block is connected to the motor.

6. The engine output shaft flexible transmission device according to claim 1, characterized in that: The detection component includes: a mounting frame, a sensor and an induction ring, wherein the mounting frame is connected to the engine, the sensor is connected to the mounting frame, and the induction ring is connected to the sensor and is sleeved on the output shaft.

7. An engine, characterized in that: The invention comprises the engine output shaft flexible transmission device as described in any one of claims 1-6.

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