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Use of ratchet socket wrenches (speed wrenches)

Published:

2023-03-29 10:36

A ratchet socket wrench is usually called a speed wrench because it is convenient and fast to use in vehicle maintenance.

A great advantage of a ratchet socket quick wrench is that when the size of a screw or nut is large or the working position of the wrench is narrow,a ratchet wrench can be used.

This wrench swings at a small angle and can tighten and loosen screws or nuts.Turn the handle clockwise when tightening.A square sleeve is fitted with a support rod.When the handle is pulled back in the opposite direction,the brace slides out in the bevel of the ratchet teeth,so the screw or nut does not follow the reverse direction.If it is necessary to loosen a screw or nut,simply turn the ratchet wrench counterclockwise.

By manually turning the nut through reciprocating swing,it is convenient,fast,labor-saving,and time-saving.It can be loosened and tightly installed,with strong applicability and convenient adjustment of the use angle.

Ratchet handles are the most common sleeve handles.The sleeve handle is a matching handle installed on the sleeve for pulling the sleeve.Without the matching handle,the sleeve cannot work independently.

When using a ratchet handle,the socket wrench can be locked with a small rotation angle and work in a limited space.

The head of the ratchet handle is designed with a ratchet device,which can achieve rapid and unidirectional rotation without breaking away from the sleeve and bolt.

Use of a speed wrench

Ratchet wrenches are indeed relatively convenient,but they also have the disadvantage of not using them too hard,otherwise the gears and blocks inside can easily be damaged.Main operating parameters of ratchet wrench:specifications and torque

Generally speaking,I don't think you have noticed any special problems.Just buy from a regular factory.

"Because you don't measure the torque of a ratchet wrench that is qualified,and you don't usually measure its hardness,",

The rotation direction of the locking mechanism can be changed by adjusting it:

Turn the locking mechanism handle to the left to tighten the bolt or nut in a one-way clockwise direction;Turn the locking mechanism handle to the right to loosen the bolt or nut in one direction and counterclockwise.

The single hand steering function makes operation more convenient.

The ratchet handle is convenient to use but not strong enough.Do not use a ratchet wrench for final tightening of bolts or nuts.In addition,it is strictly prohibited to apply excessive torque to the ratchet handle,otherwise the internal pawl structure will be damaged.

Some professional ratchet wrenches are designed with socket locking and quick release functions,requiring only one hand operation to prevent the socket or extension rod from falling off during use.

When using,press the lock button,insert the socket head into the square tenon of the ratchet wrench,release the lock button,and the socket will be locked.If you press the lock button again,you can unlock the socket.

Specification identification of ratchet socket wrenches

The general specifications are divided according to the square head size,with several specifications of 6.3/10/12.5/20/25 MM,

Corresponding to my minimum torque of 48/165/390/1330/2210 N*M

Generally speaking,1/4,3/8,and 1/2 refer to the side length of the square connector on the wrench.1/4 represents the size of the square head,which is 6.3MM,3/8 represents 9.5MM,and 1/2 represents 12.5MM.

The wrench is mainly selected based on the torque value.As for your size,it is necessary to match a suitable sleeve.

1/4 small speed wrench,especially suitable for small size socket locknuts below 14MM

3/8"medium speed wrench,suitable for matching with sockets within 24MM.".

"1/2"large speed wrench with relatively large torque is suitable for working with sockets within 32MM.".

Principle and structure of ratchet wrench

A ratchet wrench used to rotate a bolt or nut placed in a narrow or inaccessible position.The ratchet wrench is rotatably connected to the end of the operating lever.The ratchet wrench comprises a heavy block connected to an operating lever,which can slide along the length direction of the operating lever,and a front heavy block carrying part is provided on the operating lever in front of the heavy block to prevent the impact of the heavy block.Alternatively,the operating lever at the rear of the weight block has a rear weight bearing portion that blocks the impact of the weight block.Moreover,the operating lever can also have both a front weight bearing portion and a rear weight bearing portion.

The selection principle of various types of wrenches is generally to give priority to socket wrenches,followed by ring wrenches,open end wrenches,and adjustable wrenches.

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