CN204913813U - Pneumatic jump bit of hand -held type - Google Patents
Pneumatic jump bit of hand -held type Download PDFInfo
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- CN204913813U CN204913813U CN201520482115.9U CN201520482115U CN204913813U CN 204913813 U CN204913813 U CN 204913813U CN 201520482115 U CN201520482115 U CN 201520482115U CN 204913813 U CN204913813 U CN 204913813U
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- jump bit
- hand
- held pneumatic
- subassembly
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Abstract
The utility model discloses a pneumatic jump bit of hand -held type relates to the rail welding seam field of handling, including a pneumatic jump bit of hand -held type, it includes the tup subassembly, assaults subassembly, drive assembly and handheld parts, handheld part includes that handle and group establish movable cover on hand, be equipped with accommodating space in the handheld part, strike the subassembly accept in among the accommodating space, just it includes that jump bit body and group establish the jump bit bottom in jump bit body one end to strike the subassembly, the tup subassembly is including short chisel, short chisel is located the one end of jump bit bottom is kept away from to the jump bit body, drive assembly with the impact subassembly links to each other, just the drive assembly drive short chisel reciprocating motion. Because the high integration of tup subassembly, impact subassembly, drive assembly and handheld parts, the structure is exquisite, can hand the operation, for the welding seam processing apparatus among the prior art, and its effectual equipment volume and weight of having reduced.
Description
Technical field
The utility model relates to rail welding field, provides a kind of hand-held pneumatic jump bit.
Background technology
As everyone knows, metal welding techniques is in machine-building, shipbuilding, control the industries such as gold, transport, chemical industry, electric power and be used widely, hardware is after welding, fine crack and bubble can be produced on welded seam area surface and inside, and there is the defect that metallic gold phase constitution density is loosened and metal combination property reduces, affect the serviceability of structure, machining accuracy and dimensional stability, reduce the qualification rate of product, in mechanical use procedure, be easily directed at the generation of malicious event.Therefore, for a long time, Chinese scholars is constantly explored for problems such as the stress deformation produced in welding process, crackle, bubble and residual stress, and has achieved many control methods and achievement in research.As Chinese Patent Application No. 201010593757.8 uses ultrasonic impact method to address this problem; Oscillating aging correlation technique disclosed in Chinese Patent Application No. 200710035968.8, and the vibration welding technology disclosed in Chinese Patent Application No. 99106598.0.Though these technology all serve certain effect in elimination weldment residual stress, all there is many limitation and weak point.
In welded rails military service process, the easily fracture failure at position while welding formation fatigue crack.Butt welded seam carries out hammer peening, and then forms compression at position while welding, effectively can suppress the formation and spreading of fatigue crack.
At present, mainly contain for the processing method of conventional weld or equipment: the process in welding process, vibration processing method, in welding process, apply vibration, refinement seam organization improve fatigue behaviour, welding after process, weld seam back-fire arrangement, heat-treated by butt welded seam, improve weld seam microstructure and mechanical property, thus reduce weld fatigue failure risk, ultrasonic wave process rifle, ultrasonic energy is converted to the kinetic energy of striker pin by it, by the elliptical gear weld seam of striker pin, eliminate weld residual stress.
The said equipment bulk volume is larger or heavier, is not suitable for the process of exothermic welding weld seam in railway line, and the auxiliary equipment needed is more, inconvenient site operation.
Utility model content
For the defect existed in prior art, it is little, lightweight that the purpose of this utility model is to provide a kind of volume, and site operation is a kind of hand-held pneumatic jump bit easily.
In order to reach the purpose of this utility model, the utility model provides a kind of hand-held pneumatic jump bit, and it comprises Hammer head assembly, impacts assembly, driven unit and handheld component,
Described handheld component comprises handle and group and is located at removable cover on described handle, is provided with receiving space in described handheld component;
Described impact assembly is contained in described receiving space, and described impact assembly comprises jump bit body and group is located at bottom the jump bit of jump bit body one end;
Described Hammer head assembly comprises short cutter, and described short cutter is positioned at described jump bit body away from the one end bottom jump bit;
Described driven unit is connected with described impact assembly, and described driven unit drives described short cutter to move back and forth.
On the basis of technique scheme, described driven unit is air pump drive system and electric drive system.
On the basis of technique scheme, described handle comprises the main part of tubulose, and described main part one end is provided with a baffle ring other end and is provided with a lid, and described removable cover is mounted on described lid.
On the basis of technique scheme, the main part of described tubulose, baffle ring and lid are wholely set.
On the basis of technique scheme, described baffle ring and lid are connected to the two ends of the main part of described tubulose.
On the basis of technique scheme, described lid and removable cover form the cavity of a hollow, and described receiving space is made up of the hollow region of the hollow region of described cavity and the main part of described tubulose.
On the basis of technique scheme, described impact assembly also comprises a flange, and described flange is connected with bottom jump bit.
On the basis of technique scheme, described driven unit comprises air pump, the first flexible pipe circle be connected with air pump and the second flexible pipe circle, and described flange is connected with the second flexible pipe circle with described first flexible pipe circle successively.
On the basis of technique scheme, at least part of described jump bit body: insert in the main part of described tubulose, and bottom described jump bit, flange is all contained in described cavity.
On the basis of technique scheme, described Hammer head assembly also comprises chuck, nose device and O type circle, described collet sleeve is located on described short cutter, and described O type circle is between described chuck and described jump bit body, and described nose device is sheathed on described jump bit body near one end of short cutter.
Compared with prior art, the utility model has the advantage of: because the height of Hammer head assembly, impact assembly, driven unit and handheld component is integrated, delicate structure, make the hand-holdable operation of rail aluminum weld hand-held pneumatic jump bit of the present utility model, relative to weld seam treating apparatus of the prior art, it effectively reduces equipment volume and weight.
Meanwhile, because handle is provided with baffle ring, operator's safety can be protected, meanwhile, use air pump as power source, noise when it can effectively reduce operation.
Accompanying drawing explanation
Fig. 1 is a kind of hand-held pneumatic jump bit of the utility model sectional view.
In figure, 1: jump bit body; 2: chuck; 3: short cutter; 4: handle; 5: nose device; 6:O type circle; 7: bottom jump bit; 8: flange; 9: baffle ring; 10: removable cover; 11: the first flexible pipe circles; 12: the second flexible pipe circles; 13: lid.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
See Fig. 1, a kind of hand-held pneumatic jump bit of the utility model.It comprises Hammer head assembly, impacts assembly, driven unit and handheld component.Handheld component comprises handle 4 and group and is located at removable cover 10 on handle 4, is provided with receiving space in handheld component.Handle 4 comprises the main part of tubulose, and main part one end of tubulose is provided with baffle ring 9 other end and is provided with a lid 13.In order to improve the overall mechanical strength of handle 4, the main part of tubulose, baffle ring 9 and lid 13 are integrated setting.Need to change whole handle 4 in order to avoid baffle ring 9 or lid 13 damage, the main part of baffle ring 9, lid 13 and tubulose can be three parts.Baffle ring 9, lid 13 are connected to the two ends of the main part of tubulose.
Removable cover 10 is mounted on lid 13, and specifically, removable cover 10 is fastened on lid 13, and forms the cavity of a hollow, and receiving space is made up of the hollow region of the hollow region of cavity and the main part of tubulose.Impact assembly is housed in receiving space, impacts assembly and to comprise bottom jump bit that jump bit body 1 and group be located at jump bit body 1 one end 7.Wherein jump bit body 1 is metal cylinder, and bottom jump bit, 7 is the pedestal of metal, and its connected mode be threaded connection is connected with jump bit body 1.Bottom jump bit, 7 also connect a flange 8, and this flange 8 is connected with the first flexible pipe circle 11.
Impact assembly front end and Hammer head assembly is housed, Hammer head assembly also comprises chuck 2, nose device 5 and O type circle 6, described chuck 2 is set on described short cutter 3, and described O type circle 6 is between described chuck 2 and described jump bit body 1, and described nose device 5 is sheathed on described jump bit body 1 one end near short cutter 3.
Driven unit is connected with impact assembly, and driven unit drives short cutter 3 to move back and forth.In the present embodiment, short cutter 3 can move back and forth with the speed of 4000 beats/min, thus plays percussion.
Driven unit is can be motor driven systems or air pump drive system.In order to outdoor study preferably, also in order to environmental protection and reduction noise, the present embodiment have employed air pump drive system as driven unit.And motor driven systems knows technology as used driven by motor to impact assembly reciprocating motion as knowing of mechanical field, be not described in detail at this.
Air pump drive system comprises air pump.The second flexible pipe circle 12 that air pump connects successively and the first 11, flexible pipe circle 11, first flexible pipe circle are connected with flange 8.Bottom jump bit 7, flange 8, be all contained in the cavity that is made up of removable cover 10 and lid 13.Air pump is moved back and forth by the first flexible pipe circle 11, second flexible pipe circle 12, flange 8 and the short cutter 3 of impact Component driver.
Because the height of Hammer head assembly, impact assembly, driven unit and handheld component is integrated, delicate structure, make the hand-holdable operation of rail aluminum weld hand-held pneumatic jump bit of the present utility model, relative to weld seam treating apparatus of the prior art, it effectively reduces equipment volume and weight.Meanwhile, because handle 4 is provided with baffle ring 9, operator's safety can be protected, meanwhile, use air pump as power source, noise when it can effectively reduce operation.
The hand-held pneumatic jump bit that the utility model provides.Short time process is carried out by the seaming position of Welded Joints, such as,, the about one minute joint treatment time, a plumb joint has four weld seams, amounts to four minutes, significantly can reduce the impact on train operation, effectively can improve the anti-fatigue performance of welding point, the extending connector life-span 3 ~ 5 times, in extreme circumstances, the joint made by alumino-thermal weldin life-span is improve 16 times.
Test and circuit service condition show, through the joint made by alumino-thermal weldin of jump bit process, fatigue crack multiform is formed in rail mother metal instead of joint location.The principle of jump bit effect is mainly to clash into weld seam by jump bit, makes rail joint position while welding form the stress state of pressurized.Compressive stress state effectively can suppress the formation and spreading of fatigue crack, thus improves weld seam active time.
The utility model is not limited to above-mentioned embodiment; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications are also considered as within protection domain of the present utility model.The content be not described in detail in this description belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. a hand-held pneumatic jump bit, it comprises Hammer head assembly, impacts assembly, driven unit and handheld component, it is characterized in that:
Described handheld component comprises handle (4) and group and is located at removable cover (10) on described handle (4), is provided with receiving space in described handheld component;
Described impact assembly is contained in described receiving space, and described impact assembly comprises bottom jump bit that jump bit body (1) and group be located at jump bit body (1) one end (7);
Described Hammer head assembly comprises short cutter (3), and described short cutter (3) is positioned at described jump bit body (1) one end away from (7) bottom jump bit;
Described driven unit is connected with described impact assembly, and described driven unit drives the reciprocating motion of described short cutter (3).
2. a kind of hand-held pneumatic jump bit as claimed in claim 1, is characterized in that: described driven unit is air pump drive system and electric drive system.
3. a kind of hand-held pneumatic jump bit as claimed in claim 1, it is characterized in that: described handle (4) comprises the main part of tubulose, described main part one end is provided with a baffle ring (9) other end and is provided with a lid (13), and described removable cover (10) is mounted on described lid (13).
4. a kind of hand-held pneumatic jump bit as claimed in claim 3, is characterized in that: the main part of described tubulose, baffle ring (9) and lid (13) are wholely set.
5. a kind of hand-held pneumatic jump bit as claimed in claim 3, is characterized in that: described baffle ring (9) and lid (13) are connected to the two ends of the main part of described tubulose.
6. a kind of hand-held pneumatic jump bit as claimed in claim 3, it is characterized in that: described lid (13) and removable cover (10) form the cavity of a hollow, described receiving space is made up of the hollow region of the hollow region of described cavity and the main part of described tubulose.
7. a kind of hand-held pneumatic jump bit as claimed in claim 6, it is characterized in that: described impact assembly also comprises a flange (8), described flange (8) is connected with (7) bottom jump bit.
8. a kind of hand-held pneumatic jump bit as claimed in claim 7, it is characterized in that: described driven unit comprises air pump, the first flexible pipe circle (11) be connected with air pump and the second flexible pipe circle (12), and described flange (8) is connected with the second flexible pipe circle (12) with described first flexible pipe circle (11) successively.
9. a kind of hand-held pneumatic jump bit as claimed in claim 8, it is characterized in that: at least part of described jump bit body (1) is inserted in the main part of described tubulose, and bottom described jump bit, (7), flange (8) are all contained in described cavity.
10. a kind of hand-held pneumatic jump bit as claimed in claim 1, it is characterized in that: described Hammer head assembly also comprises chuck (2), nose device (5) and O type circle (6), described chuck (2) is set on described short cutter (3), described O type circle (6) is positioned between described chuck (2) and described jump bit body (1), and described nose device (5) is sheathed on described jump bit body (1) one end near short cutter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482115.9U CN204913813U (en) | 2015-07-07 | 2015-07-07 | Pneumatic jump bit of hand -held type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482115.9U CN204913813U (en) | 2015-07-07 | 2015-07-07 | Pneumatic jump bit of hand -held type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204913813U true CN204913813U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520482115.9U Active CN204913813U (en) | 2015-07-07 | 2015-07-07 | Pneumatic jump bit of hand -held type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI664039B (en) * | 2017-03-29 | 2019-07-01 | Nitto Kohki Co., Ltd. | Pressurized air-driven chisel |
-
2015
- 2015-07-07 CN CN201520482115.9U patent/CN204913813U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI664039B (en) * | 2017-03-29 | 2019-07-01 | Nitto Kohki Co., Ltd. | Pressurized air-driven chisel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |