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Anti-contrarotation apparatus of hand-starting diesel engine and starting equipment matched with the same

A starting device and anti-reverse technology, applied in the field of diesel engine accessories, can solve problems such as diesel engine starting accidents, inability to rotate the diesel engine at a constant speed, and the diesel engine failing to meet the industry standard for manual cranking.

Inactive Publication Date: 2009-06-24
刘素文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the temperature drops, the physical strength of the operator is insufficient, repeated starts are unsuccessful, the diesel engine fails, or the engine is loosened and depressurized before reaching a certain speed when starting, etc., it will cause the diesel engine to reverse and the starting handle (cradle) will follow the reverse direction. In turn, it is unable to withdraw by itself, which leads to the occurrence of injury accidents.
[0003] In addition, due to poor starting skills or negligence of the starter, such as not holding the starter handle tightly, standing too far away from the engine, or unable to rotate the diesel engine at a constant speed when starting, etc., it is easy to cause the starter handle to be thrown out and hurt the face of the starter. part, especially the starting handle of the extended rocker arm is more dangerous
[0004] Many unsafe factors mentioned above will cause diesel engine starting accidents, which seriously threaten the life safety of starting personnel.
Existing hand crank diesel engines cannot meet the relevant national hand start industry standards

Method used

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  • Anti-contrarotation apparatus of hand-starting diesel engine and starting equipment matched with the same
  • Anti-contrarotation apparatus of hand-starting diesel engine and starting equipment matched with the same
  • Anti-contrarotation apparatus of hand-starting diesel engine and starting equipment matched with the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1. refer to figure 1 . An anti-reversal device for a hand-cranked diesel engine, which includes a bracket 5 and a pawl assembly, a ratchet lead sleeve hole 7 is arranged on the bracket 5, and the ratchet assembly is arranged in the ratchet guide sleeve hole 7 On the surrounding bracket 5; the ratchet assembly is composed of a ratchet 1, a positioning shaft 2, a reverse limit shaft 3 and a ratchet return spring 6, and the front end of the ratchet 1 protrudes toward the side of the ratchet guide sleeve hole 7 , the pawl 1 is connected to the support 5 through the positioning shaft 2, the reverse limit shaft 3 is set on the support 5 on the rear side of the pawl 1, and the pawl 1 moves around the positioning shaft 2 under the action of the reverse limit shaft 3 One-way rotation; one end of the pawl return spring 6 is fixed on the bracket 5, and the other end is arranged on the pawl 1, and the pawl 1 returns under the action of the pawl return spring 6.

Embodiment 2

[0027] Example 2. refer to Figure 5 . An anti-reversal device for a hand cranked diesel engine, which is provided with a pawl assembly, and the pawl assembly is arranged on the gear chamber cover 14 around the starting shaft 11 of the diesel engine; the pawl assembly consists of a pawl 1 , a positioning shaft 2, a reverse limit shaft 3 and a pawl return spring 6. The front end of the pawl 1 protrudes toward the front side of the starting shaft 11, and the pawl 1 is connected to the gear chamber cover 14 through the positioning shaft 2. The reverse limit shaft 3 is arranged on the gear chamber cover 14 on the rear side of the pawl 1, and the pawl 1 rotates in one direction around the positioning shaft 2 under the action of the reverse limit shaft 3; one end of the pawl return spring 6 is fixed On the gear chamber cover 14 , the other end is arranged on the pawl 1 , and the pawl 1 returns under the action of the pawl return spring 6 .

Embodiment 3

[0028] Example 3. In the anti-reversal device of the hand crank diesel engine described in Embodiment 1 or 2, there are two ratchet assemblies, which are arranged symmetrically on the left and right sides of the ratchet lead sleeve hole 7 .

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Abstract

The invention relates to an anti-reversion device for a hand starting diesel engine, which is characterized in that the device comprises a bracket and at least a pawl assembly; a ratchet wheel lead trepan boring is provided on the bracket; the pawl assembly is arranged on the bracket around the ratchet wheel lead trepan boring and is composed of a pawl, a locating shaft, a reverse limiting shaft and a pawl return spring. The invention also discloses a starting device matched with the anti-reversion device for a hand starting diesel engine. During hand starting, a ratchet wheel lead sleeve on a starting handle can be started by smoothly passing through the pawl. When the starting handle rotates counterclockwise, the pawl which can rotate unidirectionally stops in a lead groove of the ratchet lead sleeve; the starting handle automatically slips off under the thrust of a gradually rising lead surface on the ratchet wheel lead sleeve. The device has simple and rational structure and can effectively withdraw the starting handle during starting and reversing.

Description

technical field [0001] The invention relates to an accessory of a diesel engine, in particular to an anti-reverse device for a hand-cranked diesel engine; the invention also relates to a starting device matched with the anti-reverse protection device. Background technique [0002] Most of the single-cylinder diesel engines currently in use still start by manpower. When the temperature drops, the physical strength of the operator is insufficient, repeated starts are unsuccessful, the diesel engine fails, or the engine is loosened and depressurized before reaching a certain speed when starting, etc., it will cause the diesel engine to reverse and the starting handle (cradle) will follow the reverse direction. In turn, it is impossible to withdraw voluntarily, resulting in the occurrence of injury accidents. [0003] In addition, due to poor starting skills or negligence of the starter, such as not holding the starter handle tightly, standing too far away from the engine, or u...

Claims

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Application Information

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IPC IPC(8): F02N1/02
Inventor 刘素文
Owner 刘素文
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