End face meshing structure and fuel generator set thereof

Abstract

The end face meshing structure comprises an output gear, a sleeve shaft, a sleeve and a push rod, the push rod is rotatably connected with the center of the output gear, the sleeve shaft is arranged on the surface of the push rod in a sleeving mode to be fixedly connected, and the sleeve shaft and the push rod rotate synchronously. The sleeve shaft is rotatably arranged in the sleeve, a contact ring is arranged on the inner wall of the sleeve, a gap is reserved between the inclined wedge groove and the inclined wedge face of the contact ring, when the sleeve shaft horizontally moves in the axial direction of the push rod, the inclined wedge groove and the contact ring are meshed and fixed, and the starter is in meshed transmission with the driving gear disc of the fuel engine through an end face meshing structure. Pushing meshing of the starter is changed into pushing meshing, the conditions of tooth missing and tooth breaking of the gear can be effectively reduced, and meanwhile the fuel generator set with the end face meshing structure is high in starting power transmission speed, little in jamming and high in response speed.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel engine driving, in particular to an end face bite structure and a fuel engine generator set thereof. Background Art

[0002] As we all know, starting a fuel-powered engine requires external force, and the starter performs this function. Generally speaking, the starter utilizes three components to complete the starting process. A DC series motor draws current from the battery and generates mechanical motion in the starter's drive gear. A transmission mechanism engages the drive gear with the flywheel ring gear and automatically disengages after the engine starts. An electromagnetic switch controls the starter circuit's on / off function. The motor is the primary component within the starter. Its operating principle is the energy conversion process based on Ampere's law, as learned in junior high school physics: the force exerted on a current-carrying conductor in a magnetic field. The motor includes the necessary components, such as the armature, commutator, magnetic poles, brushes, bearings, and housing. Before a fuel-powered engine can operate under its own power, it must be rotated by an external force. The process of transitioning a fuel-powered engine from a stationary state to self-operation with the aid of an external force is called starting.

[0003] The existing fuel engine's flywheel ring gear and starter are coordinated by separating and engaging two spur gears or helical gears through a push rod. Since the starter's output gear and the flywheel ring gear collide at the end surface when meshing, after a long period of use, it is easy to cause gear tooth missing or broken, affecting the starting of the fuel generator set. Therefore, in view of these current situations, there is an urgent need to develop an end face engagement structure and its fuel generator set to meet the needs of actual use. Utility Model Content

[0004] The utility model aims to provide an end face engaging structure and a fuel generator set thereof, which are used to solve the defect that collision is easily caused at the end face between the existing starter and the flywheel ring gear when meshing.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A end face engaging structure includes an output gear, a sleeve, a sleeve and a push rod, wherein the push rod is rotatably connected to the center of the output gear, the sleeve is sleeved on the surface of the push rod for fixed connection, the sleeve and the push rod rotate synchronously, the sleeve is rotatably arranged inside the sleeve, and a contact ring is provided on the inner wall of the sleeve, the cross-sectional structure of the contact ring is a "step" structure, the surface of the sleeve is provided with an oblique groove matching the contact ring, a gap is left between the oblique groove and the oblique surface of the contact ring, and when the sleeve moves horizontally along the axial direction of the push rod, the oblique groove and the contact ring are engaged and fixed.

[0007] In the above description, as a further solution, a bearing is provided at the center of the output gear, one end of the push rod is inserted into the interior of the bearing, and the push rod is rotatably connected to the output gear through the bearing.

[0008] In the above description, as a further solution, a fixed key is provided between the sleeve shaft and the push rod, one end face of the fixed key is embedded in the outer wall of the push rod, and the other end face of the fixed key is embedded in the inner wall of the sleeve shaft, and the push rod is fixedly connected to the sleeve shaft through the fixed key.

[0009] In the above description, as a further solution, a limit ring is provided at the end of the sleeve away from the output gear, the gap distance between the limit ring and the output gear remains fixed, and an elastic member is provided between the sleeve and the limit ring, and both ends of the elastic member abut between the limit ring and the sleeve.

[0010] A fuel generator set includes a generator, a fuel engine and a starter. The crankshaft of the fuel engine is fixedly connected to the input shaft of the generator, and a drive gear plate is provided in the middle of the crankshaft. The starter is provided on one side of the drive gear plate. The output end of the starter is engaged with the drive gear plate for transmission. The output end of the starter is provided with the above-mentioned end face engagement structure. The push rod is the output shaft of the starter. The output gear is rotatably provided at the output end of the starter, and the output gear is engaged with the drive gear plate.

[0011] In the above description, as a further solution, the exhaust hole of the fuel engine is provided with an exhaust manifold, the air intake hole on the other side of the fuel engine is provided with an intake manifold, and an air filter is provided at the end of the intake manifold away from the fuel engine, and the air filter is used to isolate foreign particles in the air.

[0012] In the above description, as a further solution, a cooling assembly is also included. The cooling assembly is arranged on one side of the fuel engine, and a cooling pipe is provided between the fuel engine and the cooling assembly.

[0013] The beneficial effects produced by the utility model are as follows:

[0014] The present application provides an end face bite structure and a fuel generator set thereof, which forms an end face bite clutch structure between the sleeve shaft and the sleeve through friction contact between the beveled end faces of the beveled groove and the contact ring in the end face bite structure, thereby changing the push engagement of the starter into a push engagement, which can effectively reduce the situation of missing and broken teeth on the gears. At the same time, the fuel generator set with an end face bite structure has fast power transmission, less jamming, and fast response speed during startup. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structural decomposition of an end face bite structure of the utility model;

[0016] Figure 2This is a schematic cross-sectional view of an end face engaging structure according to the present invention;

[0017] Figure 3 This is a schematic structural diagram of the starter of the utility model;

[0018] Figure 4 This is a structural diagram of a fuel-fired generator set described in the utility model;

[0019] In the figure: 1-starter, 11-push rod, 2-exhaust manifold, 4-intake manifold, 41-air filter, 5-fuel engine, 6-cooling assembly, 61-cooling duct, 7-end face engagement structure, 71-sleeve, 72-output gear, 73-contact ring, 74-bearing, 75-sleeve shaft, 751-bevel groove, 76-elastic member, 77-limiting ring, 78-fixing key, 8-generator, 9-drive gear plate. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0021] See also Figure 1-2 The specific implementation of an end face engaging structure 7 includes an output gear 72, a sleeve shaft 75, a sleeve 71 and a push rod 11. The push rod 11 is rotatably connected to the center of the output gear 72. The sleeve shaft 75 is sleeved on the surface of the push rod 11 for fixed connection. The sleeve shaft 75 rotates synchronously with the push rod 11. The sleeve shaft 75 is rotatably arranged inside the sleeve 71, and the inner wall of the sleeve 71 is provided with a contact ring 73. The cross-sectional structure of the contact ring 73 is a "step" structure. The surface of the sleeve shaft 75 is provided with an oblique groove 751 that matches the contact ring 73. There is a gap between the oblique groove 751 and the oblique surface of the contact ring 73, and when the sleeve shaft 75 moves horizontally along the axial direction of the push rod 11, the oblique groove 751 is engaged and fixed with the contact ring 73.

[0022] Through the frictional contact between the bevel groove 751 in the end face engaging structure 7 and the bevel end face of the contact ring 73, a clutch structure with end face engaging is formed between the sleeve shaft 75 and the sleeve 71, and the push engagement of the starter 1 is changed to a push engagement, which can effectively reduce the situation of missing and broken teeth of the gears. At the same time, the fuel generator 8 group with the end face engaging structure 7 has fast power transmission, less jamming, and fast response speed during starting.

[0023] Specific examples Figure 1 and 2As shown, a bearing 74 is provided at the center of the output gear 72, one end of the push rod 11 is inserted into the inside of the bearing 74, and the push rod 11 is rotatably connected to the output gear 72 through the bearing 74. A fixed key 78 is provided between the sleeve shaft 75 and the push rod 11, and one end face of the fixed key 78 is embedded in the outer wall of the push rod 11, and the other end face of the fixed key 78 is embedded in the inner wall of the sleeve shaft 75. The push rod 11 is fixedly connected to the sleeve shaft 75 through the fixed key 78.

[0024] In a further solution, a limiting ring 77 is provided at one end of the sleeve shaft 75 away from the output gear 72, and the gap distance between the limiting ring 77 and the output gear 72 is kept fixed, and an elastic member 76 is provided between the sleeve shaft 75 and the limiting ring 77, and both ends of the elastic member 76 abut between the limiting ring 77 and the sleeve shaft 75. When the push rod 11 is withdrawn away from the side of the output gear 72, an elastic stress for resetting backward can be applied to the sleeve shaft 75 by providing an elastic member 76 between the sleeve shaft 75 and the limiting ring 77, so that the original gap range is maintained between the limiting ring 77 and the bevel groove 751, so that the power of the starting fuel engine 5 is kept engaged with the output gear 72, while the power is cut off between the limiting ring 77 and the sleeve shaft 75, thereby not affecting the starter 1.

[0025] Specifically, a fuel generator 8 groups such as Figure 3-4 As shown, it includes a generator 8, a fuel engine 5 and a starter 1. The crankshaft of the fuel engine 5 is fixedly connected to the input shaft of the generator 8, and a drive gear plate 9 is provided in the middle of the crankshaft. The starter 1 is provided on one side of the drive gear plate 9. The output end of the starter 1 is engaged with the drive gear plate 9 for transmission. The output end of the starter 1 is provided with the above-mentioned end face engaging structure 7. The push rod 11 is the output shaft of the starter 1. The output gear 72 is rotatably provided at the output end of the starter 1, and the output gear 72 is engaged with the drive gear plate 9.

[0026] In a further solution, the exhaust hole of the fuel engine 5 is provided with an exhaust manifold 2, the air intake hole on the other side of the fuel engine 5 is provided with an intake manifold 4, and the end of the intake manifold 4 away from the fuel engine 5 is provided with an air filter 41, and the air filter 41 is used to isolate foreign particles in the air.

[0027] In a further solution, a cooling assembly 6 is further included. The cooling assembly 6 is arranged on one side of the fuel engine 5, and a cooling pipe 61 is provided between the fuel engine 5 and the cooling assembly 6.

[0028] A starting process of a fuel generator set 8, through the starter 1 is energized, the starter 1 pushes the push rod 11 to the side of the output gear 72, through the friction contact between the bevel groove 751 in the end face engagement structure 7 and the bevel end face of the contact ring 73, so that the sleeve shaft 75 and the sleeve 71 form a clutch structure that can engage with the end face, and at the same time, the push rod 11 drives the sleeve shaft 75 to rotate synchronously through the fixed key 78. Due to the engagement structure between the sleeve shaft 75 and the contact ring 73, the sleeve 71 and the output gear 72 rotate synchronously with the sleeve shaft 75, and the output gear 72 rotates synchronously with the sleeve shaft 75. The wheel 72 meshes and rotates with the drive gear plate 9, driving the crankshaft inside the fuel engine 5 to rotate, and synchronously injecting fuel into the combustion chamber for ignition. Under the inertia of the continuous rotation of the crankshaft, the starter 1 can retract the push rod 11 to the side away from the output gear 72. At this time, the drive gear plate 9 still maintains meshing transmission with the output gear 72, but the original gap range is maintained between the limit ring 77 and the bevel groove 751, forming a non-interference state, thereby reducing the meshing collision between the drive gear plate 9 and the output gear 72 and improving the service life of the starter 1.

[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. An end face engaging structure, characterized in that: It includes an output gear, a sleeve, a sleeve and a push rod. The push rod is rotatably connected to the center of the output gear. The sleeve is sleeved on the surface of the push rod for fixed connection. The sleeve and the push rod rotate synchronously. The sleeve is rotatably arranged inside the sleeve. The inner wall of the sleeve is provided with a contact ring. The cross-sectional structure of the contact ring is a "step" structure. The surface of the sleeve is provided with an oblique groove matching the contact ring. There is a gap between the oblique groove and the oblique surface of the contact ring. When the sleeve moves horizontally along the axial direction of the push rod, the oblique groove and the contact ring are engaged and fixed.

2. The end face engaging structure according to claim 1, characterized in that: A bearing is provided at the center of the output gear, one end of the push rod is inserted into the interior of the bearing, and the push rod is rotatably connected to the output gear through the bearing.

3. The end face engaging structure according to claim 1, characterized in that: A fixing key is provided between the sleeve shaft and the push rod, one end face of the fixing key is embedded in the outer wall of the push rod, and the other end face of the fixing key is embedded in the inner wall of the sleeve shaft. The push rod is fixedly connected to the sleeve shaft through the fixing key.

4. The end face engaging structure according to claim 1, characterized in that: A limiting ring is provided at one end of the sleeve shaft away from the output gear, and the gap distance between the limiting ring and the output gear is kept fixed. An elastic member is provided between the sleeve shaft and the limiting ring, and both ends of the elastic member abut between the limiting ring and the sleeve shaft.

5. A fuel-fired generator set comprising a generator, a fuel engine, and a starter, wherein the crankshaft of the fuel engine is fixedly connected to the input shaft of the generator, and a drive gear plate is provided in the middle of the crankshaft. The starter is provided on one side of the drive gear plate, and the output end of the starter is meshed with the drive gear plate for transmission, characterized in that: The output end of the starter is provided with an end face engaging structure according to any one of claims 1 to 4, the push rod is the output shaft of the starter, the output gear is rotatably arranged at the output end of the starter, and the output gear is engaged with the driving gear plate.

6. A fuel-fired generator set according to claim 5, characterized in that: The exhaust hole of the fuel engine is provided with an exhaust manifold, the air inlet hole on the other side of the fuel engine is provided with an intake manifold, and an air filter is provided at one end of the intake manifold away from the fuel engine, and the air filter is used to isolate foreign particles in the air.

7. A fuel-fired generator set according to claim 6, characterized in that: It also includes a cooling assembly, which is arranged on one side of the fuel engine, and a cooling pipe is provided between the fuel engine and the cooling assembly.

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