CN115533833A - External starter of hand-held type for internal combustion tamping pickaxe - Google Patents

Abstract

The invention discloses a hand-held external starter for an internal combustion tamping pickaxe, which consists of a main body, a starting switch, a speed regulating knob, a reversing handle and a lithium battery pack, wherein the main body consists of a starting rod, a locking mechanism, a shell, a motor contained in the shell and a power transmission mechanism; the motor comprises a stator coil and a motor pivot, and the motor is provided with a cooling fan in a matching way. The invention has the beneficial effects that: 1. the problem of difficult cold start at low temperature in winter in northern areas is solved; 2. the problem of high labor intensity of hand-pulling starting is solved; 3. the problem that the quality of equipment is increased due to the fact that a starting mechanism is added in an electric starting mode is solved; 4. the structure is simple, and the cost is low; 5. the problem that the common external starter is large in size and mass and difficult to carry and use is solved; 6. the problem that a common external starter needs to be disassembled and assembled when in use is solved, and the starter can be popularized and applied in a large area.

Description

Internal combustion tamping pickaxe is with external starter of hand-held type

Technical Field

The invention relates to the technical field of engines, in particular to a handheld external starter for an internal combustion tamping pickaxe.

Background

The starting mode of an internal combustion tamping pick in the prior art has two types, one type is a hand-pulling starting mode and the other type is an electric starting mode, wherein the hand-pulling starting mode has high labor intensity of operators, the cold areas in the north in winter are easy to cause starting difficulty and can not work normally, and the electric starting mode needs to increase a battery and the whole quality of a starting motor device, so that the labor intensity of the operators is increased. In order to solve the problems, the company invented a gasoline engine for an externally-started tamping pick.

In order to match the gasoline engine for starting the externally-started tamping pick and solve the problem that the common hand-pulled starting type tamping pick is difficult to start in winter in northern cold regions, a convenient and quick hand-held external starter for the tamping pick needs to be provided.

Disclosure of Invention

In order to solve the existing problems, the invention provides a handheld external starter for an internal combustion tamping pickaxe. The invention is realized by the following technical scheme.

A hand-held external starter for an internal combustion tamping pick is composed of a main body, a starting switch, a speed regulation knob, a reversing handle and a lithium battery pack, wherein the main body is composed of a starting rod, a locking mechanism, a shell, a motor contained in the shell and a power transmission mechanism;

the head of the starting rod body is provided with one of a deflector rod or a hexagonal sleeve, and the tail of the starting rod body is provided with a clamping handle;

the starting switch, the speed regulation knob and the reversing handle are arranged on the handle part of the shell, a cavity for containing parts of the motor and the power transmission mechanism and positioning each bearing is arranged in the shell, the motor comprises two parts of a stator coil and a motor pivot, the stator coil is fixed in the corresponding cavity of the shell, the motor pivot is provided with an output end of a helical gear, the output end of the helical gear is supported and positioned in the stator by a rotor front bearing and a rotor rear bearing which are fixed in the shell and keeps concentric with the stator, the motor is matched with a cooling fan, the cooling fan is provided with a special fan cover, and the center of the special fan cover is provided with the starting cover; the power transmission mechanism consists of a regular hexagonal inner hole, an output shaft, a speed reducing gear, an outer sleeve and a one-way bearing, wherein the front end of the one-way bearing is provided with a starting rod clamping handle, each sharp corner of the one-way bearing is provided with a longitudinal short seam, the outer circular surface of the hexagonal hole is provided with an external thread and is supported and positioned by a main shaft front bearing and a main shaft rear bearing, the speed reducing gear is meshed with a helical gear at the output end of the motor pivot and is sleeved on the output shaft, the outer sleeve is matched with the inner hole of the speed reducing gear, and the inner ring of the one-way bearing is matched with the outer circle of the middle part of the output shaft;

the lithium battery pack is inserted below the handle part of the shell.

Further, the actuating lever includes two forms: the first is suitable for an external starting type small engine, the head of the rod body is cylindrical, the deflector rod is suitable for a starting interface of the engine to be started, and the tail of the rod body is a regular hexagonal section; the second type is a hand-pull starter type adaptation, and the hexagonal sleeve is adapted to an engine crankshaft nut.

Furthermore, the shell is formed by injection molding of high-strength engineering plastics and is divided into a left part and a right part which are basically symmetrical and combined by screws.

Further, the lithium battery pack is a rechargeable lithium battery.

The invention has the beneficial effects that: 1. the problem of difficulty in cold start at low temperature in winter in northern areas is solved; 2. the problem of high labor intensity of hand-pulling starting is solved; 3. the problem that the quality of equipment is increased due to the fact that a starting mechanism is added in an electric starting mode is solved; 4. the structure is simple, and the cost is low; 5. the problem that the common external starter is large in size and mass and difficult to carry and use is solved; 6. the problem that a common external starter needs to be disassembled and assembled when in use is solved, and the starter can be popularized and applied in a large area.

Drawings

Fig. 1 is a schematic structural diagram (one) of a handheld external starter for an internal combustion tamping pick according to the present invention;

fig. 2 is a structural schematic diagram (two) of a handheld external starter for an internal combustion tamping pick of the present invention;

FIG. 3 is a schematic view of an original conventional fan cover;

fig. 4 is a schematic diagram of a special fan cover.

Detailed Description

The technical scheme of the invention is more fully explained in detail by combining the attached drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the specific embodiment 1, the external starter for the internal combustion tamping pick comprises a main body, a starting switch 3, a speed regulation knob 4, a reversing handle 5 and a lithium battery pack 1, wherein the main body consists of a starting rod 19, a locking mechanism 18, a shell 2, a motor contained in the shell and a power transmission mechanism;

the actuating lever 19 takes two forms: one is suitable for an external starting type small engine, the head of the rod body is cylindrical, the rod body is provided with a deflector rod which is suitable for a starting interface of the engine to be started, and the tail of the rod body is a clamping handle with a regular hexagonal section; the second is a hand-pull starting machine type adaptation, the head of the rod body is provided with a hexagonal sleeve adaptive to a crankshaft nut of the engine, and the tail of the rod body is provided with a clamping handle;

the shell 2 is formed by injection molding of high-strength engineering plastics and is divided into a left part and a right part which are basically symmetrical, and a cavity for accommodating parts of the motor and the power transmission mechanism and positioning each bearing is formed in the shell after the shell is combined by screws; the starting switch 3, the speed regulating knob 4 and the reversing handle 5 are arranged on the handle part of the shell 2;

the motor comprises two parts, namely a stator coil 9 and a motor pivot 8, wherein the stator coil 9 is fixed in a corresponding cavity of the shell 2, the motor pivot 8 with the output end of a helical gear 12 is supported and positioned in the stator by a rotor front bearing 11 and a rotor rear bearing 7 which are fixed in the shell 2 and keeps concentric with the stator, the motor is matched with a cooling fan 10, the cooling fan 10 is provided with a special fan cover 1001, and the center of the special fan cover 1001 is provided with a starting cover 1002;

the power transmission mechanism consists of a regular hexagonal inner hole, an output shaft 17, a reduction gear 14, an outer sleeve and a one-way bearing 15, wherein the regular hexagonal inner hole is provided with a starting rod 19 at the front end for clamping a handle, and each sharp corner is provided with a longitudinal short seam, the outer circular surface of the hexagonal hole is provided with an external thread and is supported and positioned by a main shaft front bearing 16 and a main shaft rear bearing 13, the reduction gear 14 is meshed with a bevel gear 12 at the output end of a motor pivot 8 and is sleeved on the output shaft 17, and the outer sleeve is matched with the inner hole of the reduction gear 14, and the inner ring is matched with the excircle at the middle part of the output shaft 17;

the lithium battery pack 1 is inserted below the handle part of the shell 2, and the starter selects a rechargeable lithium battery as an energy source;

as shown in fig. 2, the carbon brush assembly further includes a carbon brush 6 tightly pressed on the rotating shaft.

The basic principle of operation is as follows:

1. for starting an external starting type small engine:

adjusting a starter according to the rotation direction and the starting rotating speed of a crankshaft of an engine to be started, inserting a starting rod 19 for adapting to an external starting type small engine into a hexagonal hole in the front end of an output shaft 17, screwing a locking mechanism 18, reducing the locking force of the locking mechanism 18 on the hexagonal hole in the front end of the starting rod 19, and locking the starting rod 19; closing an engine choke valve, gripping the handle to insert the starting rod 19 into a starting joint of an engine to be started and applying thrust to keep a driving rod of the starting rod 19 jointed with a starting interface of the engine to be started; the starting switch 3 is pressed, the motor is started, the helical gear 12 at the front end of the motor pivot 8 drives the reduction gear 14 meshed with the motor to rotate, the reduction gear 14 drives the starting rod 19 mounted at the front end of the output shaft 17 to drive the starting joint of the engine to be started to rotate anticlockwise through the flat key at the key groove of the inner ring and the outer ring of the one-way bearing 15 (at the moment, the inner ring and the outer ring of the one-way bearing 15 synchronously rotate, and the bearing only has the starting force transmission effect), and when the rotating speed reaches the preset rotating speed (the starting rotating speed of the engine), the gasoline engine is started; when the engine is started, the rotating speed of the engine starting connector is increased because the starter reaches the set highest rotating speed, so that the rotating speed of the engine starting connector is greater than that of the starter, the spiral groove bottom of the engine starting connector outwards pushes the starter connector body, and the starter is automatically separated from the engine. And (4) releasing the starting switch 3, stopping the rotation of the motor and finishing the starting.

2. A it starts difficult problem to be used for solving hand power start-up formula tamping pick:

adjusting a starter according to the crankshaft rotation direction and the starting rotating speed of the engine to be started; inserting a starting rod 19 matched with a machine type to be started into a hexagonal hole at the front end of an output shaft 17 for fixing, detaching a starter shell of a tamping pick which is difficult to start due to cold weather, closing an engine choke valve, gripping a handle, sleeving a locking nut of an engine starting flywheel by using the hexagonal hole at the head of the starting rod 19, and applying thrust to keep the starting rod 19 and the locking nut of the engine to be started to be jointed; the starting switch 3 is pressed, the motor is started to drive the reduction gear 14 meshed with the motor to rotate through the helical gear 12 at the front end of the motor pivot 8, the reduction gear 14 drives the output shaft 17 to rotate through the one-way bearing 15 (at the moment, the inner ring and the outer ring of the one-way bearing 15 synchronously rotate, and the bearing starts force transmission function), the starting rod 19 arranged at the front end of the output shaft 17 drives the starting joint of the engine to be started to rotate anticlockwise, and the gasoline engine is started when the rotating speed reaches a preset rotating speed (the starting rotating speed of the engine); when the rotating speed of the engine is increased to be larger than that of the starter after the engine is started, the inner ring and the outer ring of the one-way bearing 15 in the starter slide relatively (at the moment, the outer ring of the one-way bearing 15 rotates along with the engine, the inner ring rotates along with the motor of the starter, the bearing does not transmit the starting force any more and only acts as a common deep groove ball bearing), the starting rod 19 and the output shaft 17 rotate along with the engine without generating resistance, the starter is pulled outwards, the starting rod 19 is separated from the engine, the starting switch 3 is released, the motor stops rotating, and the starting is finished; after the tamping pick engine naturally runs for minutes, the lubricating function of each part of the tamping pick is recovered, the engine can be shut down when the temperature of the engine rises, the shell of the tamping pick starter is reinstalled, and the tamping pick is started in a trial way.

3. A hand power start-up formula tamping pickaxe starts difficult problem for solving installation special fan casing:

adjusting the starter according to the rotation direction and the starting rotating speed of the crankshaft of the engine to be started, and inserting an adaptive starting rod 19 into a hexagonal hole at the front end of an output shaft 17 for fixing; opening a starting cover 1002 at the center of the special fan cover 1001; closing the engine choke valve, gripping the handle to sleeve the lock nut of the engine cooling fan 10 with the hexagonal hole at the head of the starting rod 19 and applying thrust to keep the starting rod 19 engaged with the lock nut of the engine to be started; the starting switch 3 is pressed, the motor is started to drive the reduction gear 14 meshed with the motor to rotate through the helical gear 12 at the front end of the motor pivot 8, the reduction gear 14 drives the output shaft 17 to rotate through the one-way bearing 15 (at the moment, the inner ring and the outer ring of the one-way bearing 15 synchronously rotate, and the bearing starts force transmission function), the starting rod 19 arranged at the front end of the output shaft 17 drives the starting joint of the engine to be started to rotate anticlockwise, and the gasoline engine is started when the rotating speed reaches a preset rotating speed (the starting rotating speed of the engine); when the rotating speed of the engine is increased to be larger than that of the starter after the engine is started, the inner ring and the outer ring of the one-way bearing 15 in the starter slide relatively (at the moment, the outer ring of the one-way bearing 15 rotates along with the engine, the inner ring rotates along with the motor of the starter, the bearing does not transmit the starting force any more and only acts as a common deep groove ball bearing), the starting rod 19 and the output shaft 17 rotate along with the engine without generating resistance, the starter is pulled out outwards, the starting rod 19 is separated from the engine, the starting switch 3 is loosened, the motor stops rotating, the starting cover 1002 at the central part of the fan cover 1001 is covered, and the tamping pick is started.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (4)

1. A hand-held external starter for an internal combustion tamping pickaxe is characterized in that the external starter consists of a main body, a starting switch, a speed regulation knob, a reversing handle and a lithium battery pack, wherein the main body consists of a starting rod, a locking mechanism, a shell, a motor contained in the shell and a power transmission mechanism;

the head of the starting rod body is provided with one of a deflector rod or a hexagonal sleeve, and the tail of the starting rod body is provided with a clamping handle;

the starting switch, the speed regulation knob and the reversing handle are arranged on the handle part of the shell, a cavity for containing parts of the motor and the power transmission mechanism and positioning each bearing is arranged in the shell, the motor comprises two parts of a stator coil and a motor pivot, the stator coil is fixed in the corresponding cavity of the shell, the motor pivot is provided with an output end of a helical gear, the output end of the helical gear is supported and positioned in the stator by a rotor front bearing and a rotor rear bearing which are fixed in the shell and keeps concentric with the stator, the motor is matched with a cooling fan, the cooling fan is provided with a special fan cover, and the center of the special fan cover is provided with the starting cover; the power transmission mechanism consists of a regular hexagon inner hole, an output shaft, a reduction gear, an outer sleeve and a one-way bearing, wherein the front end of the one-way bearing is provided with a starting rod clamping handle, each sharp corner of the one-way bearing is provided with a longitudinal short seam, the outer circular surface of the hexagonal hole is provided with an external thread and is supported and positioned by a main shaft front bearing and a main shaft rear bearing, the reduction gear is meshed with a bevel gear at the output end of the motor pivot and is sleeved on the output shaft, the outer sleeve is matched with the inner hole of the reduction gear, and the inner ring is matched with the outer circle of the middle part of the output shaft;

the lithium battery pack is inserted below the handle part of the shell.

2. The hand-held external starter for an internal combustion tamping pick of claim 1, wherein: the actuating lever includes two forms: the first is suitable for an external starting type small engine, the head of the rod body is cylindrical, the deflector rod is suitable for a starting interface of the engine to be started, and the tail of the rod body is a regular hexagonal section; the second one is hand-pull starter type adaptation, and the hexagonal sleeve suits with engine crankshaft nut.

3. The hand-held external starter for an internal combustion tamping pick of claim 1, wherein: the shell is formed by injection molding of high-strength engineering plastics, is divided into a left part and a right part which are basically symmetrical, and is combined by screws.

4. The hand-held external starter for an internal combustion tamping pick of claim 1, wherein: the lithium battery pack is a rechargeable lithium battery.

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