Air cylinder impact hammer

Abstract

The utility model relates to the technical field of electric tools, and particularly discloses an air cylinder impact hammer which comprises an air cylinder body, the right end of the air cylinder body is movably connected with a crankshaft, the right end of the interior of the air cylinder body is movably connected with an air compression piston, one end of the crankshaft is connected with the air compression piston, and the other end of the crankshaft is connected with an external motor. The position, close to the air compression piston, of the outer portion of the air cylinder body is sleeved with an arc-shaped gear, and the bottom of the arc-shaped gear is connected with a bevel gear in an engaged mode. A rammer is movably connected to the position, close to the air compression piston, in the air cylinder body, an impactor is movably connected to the position, close to the rammer, in the air cylinder body, and the impactor is located on the left side of the rammer. The air cylinder and the assembly are reasonable in structural layout, the mutual matching relation between the air cylinder and the assembly is optimized and cleared, the performance is stable and reliable, efficiency is improved, the environment is improved, the using effect is well improved, and the industrial development is promoted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric tool technical field, especially, a kind of cylinder impact hammer. BACKGROUND

[0002] Electric hammer is a kind of electric rotary hammer drill with safety clutch attached with pneumatic hammering mechanism.Electric hammer is the principle of using piston movement, compressed gas impact drill bit, it is not necessary to hand to make much effort to open hole on concrete, brick, stone and other hard materials;

[0003] Cylinder impact hammer refers to the core component that provides impact force for hammer head inside electric hammer, and its stability directly determines the stability of electric hammer when carrying out subsequent impact work

[0004] Currently, the cylinder and assembly involved in the field of electric tools often have abnormal impact function, impact sub, connecting head is damaged abnormally;Gas piston and impact hammer collide, which causes gas piston assembly to not work normally, affecting user use. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of cylinder impact hammer, and the structure layout of the cylinder and assembly in the application is reasonable, and the mutual cooperation between them is optimized and clarified, with stable and reliable performance, improved efficiency, environmental improvement, and better promotion of use effect, which has promoting effect on industry development, to solve the problems proposed in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of cylinder impact hammer, including cylinder main body, the right end of the cylinder main body is movably connected with crankshaft, the inside right end of the cylinder main body is movably connected with gas piston, one end of the crankshaft is connected with gas piston, the other end is connected with external motor, the outside of the cylinder main body is connected with arc gear near gas piston, the bottom of the arc gear is meshed with umbrella gear;

[0007] The inside of the cylinder main body is movably connected with hammer near gas piston, the inside of the cylinder main body is movably connected with impact sub near hammer, and impact sub is located at the left side of hammer, the hammer is located at the left side of gas piston, the left end of the cylinder is provided with connecting sleeve, the connecting sleeve is movably connected with working head, the right end of the working head is in contact with impact sub.

[0008] Preferably, the outer ring of the impact sub is equidistantly provided with intermediate boss, and the outer portion of the connecting sleeve is provided with intermediate step.

[0009] Preferably, the diameter of the cylinder main body is 25mm, and the use scheme of 25mm cylinder main body and cylinder matching assembly, the cylinder and cylinder assembly can be applied to electric tools, engineering equipment and other fields.

[0010] Compared with the prior art, the application has the advantages that the cylinder and the component structure are reasonable in layout, the mutual cooperation relationship therebetween is optimized, the performance is stable and reliable, the efficiency is improved, the environment is improved, the use effect is better improved, and the application has a promoting effect on the development of the industry. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a whole structure view of the application;

[0012] Fig. 2 It is a whole structure explosion view of the application.

[0013] Legend:

[0014] 1, cylinder main body; 2, arc gear; 3, air piston; 4, umbrella gear; 5, crankshaft; 6, ram; 7, impactor; 8, connecting sleeve; 9, working head. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

[0016] Please refer to Figs. 1-2 The application provides a technical solution:

[0017] A cylinder impact hammer, comprising a cylinder main body 1, the right end of the cylinder main body 1 is movably connected with a crankshaft 5, the inner right end of the cylinder main body 1 is movably connected with an air piston 3, one end of the crankshaft 5 is connected with the air piston 3, the other end is connected with an external motor, an arc gear 2 is sleeved on the outer part of the cylinder main body 1 close to the air piston 3, and an umbrella gear 4 is movably connected to the bottom of the arc gear 2.

[0018] The inner part of the cylinder main body 1 close to the air piston 3 is movably connected with a ram 6, the inner part of the cylinder main body 1 close to the ram 6 is movably connected with an impactor 7, the impactor 7 is located on the left side of the ram 6, the ram 6 is located on the left side of the air piston 3, a connecting sleeve 8 is installed on the left end of the cylinder, a working head 9 is movably connected in the connecting sleeve 8, and the right end of the working head 9 is in contact with the impactor 7.

[0019] Specifically, the outer ring of the impactor 7 is provided with an intermediate boss at equal intervals, and the outer part of the connecting sleeve 8 is provided with an intermediate step. The intermediate boss of the impactor 7 and the intermediate step of the connecting sleeve 8 first play an accurate positioning function. When the impactor 7 is installed in the connecting sleeve 8, the intermediate boss and the intermediate step cooperate with each other to ensure the accurate position of the impactor 7 in the connecting sleeve 8.

[0020] Specifically, the diameter of the cylinder body 1 is 25 mm. The 25 mm cylinder body 1 and the use scheme of the cylinder matching assembly can be applied to the fields of electric tools, engineering equipment, etc.

[0021] Working principle:

[0022] During work, the cylinder has the comprehensive action of connection transmission, closed and released compression space gas, and the combination of the matching connector, the impactor 7, the impact hammer, the gas piston 3 and the auxiliary parts, and the continuous reciprocating movement can complete the high-efficiency chisel percussion breaking and drilling work. The cylinder has the advantages of novel and reasonable structure, stable and reliable performance, improved efficiency, environmental improvement, and better use effect, which has important significance.

[0023] The cylinder body 1 is a pipeline that is internally communicated and is provided with a limiting area, so that the connector, the impactor 7, the impact hammer and the gas piston 3 are combined through assembly parts. Under the condition that the cylinder does not rotate in the circumferential direction, the gas piston 3 reciprocates in the axial direction in the cylinder, drives the impact hammer to reciprocate against the impactor 7, and the impactor 7 also reciprocates against the working head 9 under the control of the stroke of the connector, and the same frequency of hammering action is generated on the working head 9, only the chisel percussion mode. When the cylinder is connected with the external gear to change into a circumferential rotation mode, the cylinder has the function of rotary chisel percussion.

[0024] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A gas cylinder impact hammer comprising a gas cylinder body (1), characterized in that, The right end of the cylinder body (1) is movably connected with a crankshaft (5), the right end inside of the cylinder body (1) is movably connected with a compression piston (3), one end of the crankshaft (5) is connected with the compression piston (3), the other end is connected with an external motor, the outside of the cylinder body (1) near the compression piston (3) is sleeved with an arc gear (2), the bottom of the arc gear (2) is movably connected with an umbrella gear (4). The inside of the cylinder body (1) near the compression piston (3) is movably connected with a hammer (6), the inside of the cylinder body (1) near the hammer (6) is movably connected with an impactor (7), the impactor (7) is located at the left side of the hammer (6), the hammer (6) is located at the left side of the compression piston (3), the left end of the cylinder is provided with a connecting sleeve (8), the connecting sleeve (8) is movably connected with a working head (9), the right end of the working head (9) is in contact with the impactor (7).

2. A gas cylinder impact ram as in claim 1, wherein, The outside of the impactor (7) is provided with middle bosses at equal distances, the outside of the connecting sleeve (8) is provided with a middle step.

3. A gas cylinder impact ram as in claim 2, wherein, The diameter of the cylinder body (1) is 25mm.

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