CN209999072U

CN209999072U - Power transmission extension device for electric wrench and ratchet wrench

Info

Publication number: CN209999072U
Application number: CN201920879040.6U
Authority: CN
Inventors: 龙俊; 李新春; 屠东兵; 贾中亚
Original assignee: Pla Military Service College
Current assignee: Pla Military Service College; Army Service Academy of PLA
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-01-31
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses an electric spanner, ratchet spanner power transmission extend device, the device comprises a device body, the surface of device body is provided with the shell, the inside drive sprocket that is provided with of right-hand member of shell, drive sprocket's downside surface has the second connecting axle through welded fastening, end that drive sprocket was kept away from to the second connecting axle has the second carousel through welded fastening, the spanner trepanning has been seted up at the middle part on the bottom surface of second carousel, the inside driven sprocket that is provided with in left end of shell, driven sprocket's upside surface has the connecting axle through welded fastening, the end that driven sprocket was kept away from to connecting axle has the carousel through welded fastening, the draw-in groove has been seted up at the middle part of the upside surface of carousel, the top of carousel is provided with the spanner head, the utility model discloses can carry out the dismouting to the bolt in the narrow space, can change various spanner heads on the carousel, be applicable to the bolt of different models, the practicality is strong.

Description

Power transmission extension device for electric wrench and ratchet wrench

Technical Field

The utility model relates to a spanner technical field specifically is kinds of electric spanner, ratchet spanner power transmission extension devices.

Background

The electric wrench is an electric tool for screwing and unscrewing bolts and nuts, is tools for screwing high-strength bolts, and is used for initial screwing, final screwing and initial screwing of torsional shear type high-strength bolts in the construction of mounting large-hexagon-head high-strength bolts for steel structure bridges, factory buildings, chemical engineering and power generation equipment, and occasions with strict requirements on torque or axial force of bolt fasteners.

The electric wrench is used for disassembling and assembling the bolt, so that the bolt is simple and labor-saving, but when the bolt is in a narrow space, a speeder wrench such as the electric wrench or a ratchet wrench cannot be used, and the bolt is also very troublesome to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide kinds of electric spanner, ratchet spanner power transmission extension devices to solve the problem of proposing among the above-mentioned background art.

kinds of electric spanners, ratchet spanner power transmission extension device, including the device body, the surface of device body is provided with the shell, the inside drive sprocket that is provided with of right-hand member of shell, the upside skin weld of drive sprocket has the second pivot, end that drive sprocket was kept away from in the second pivot is connected with the shell through the second roating seat, there is the second connecting axle lower side surface through welded fastening of drive sprocket, end that drive sprocket was kept away from to the second connecting axle has the second carousel through welded fastening, spanner trepanning has been seted up at the middle part of the bottom surface of second carousel, the inside driven sprocket that is provided with in left end of shell, driven sprocket's lower side surface has the pivot through welded fastening, the 583 end that driven sprocket was kept away from in pivot is connected with the shell through the rotatory seat of , driven sprocket's upper side surface has the through welded fastening of first, end that driven connecting axle was kept away from to the end has the carousel through welded fastening, the upper side surface of second carousel is seted up on the upper side surface of second carousel opening upper side surface of shell, the open-ended opening is seted up to the left end of of shell.

Preferably, the driven sprocket is connected with the driving sprocket through a transmission chain, a tension pulley is arranged in the middle of the front side of the transmission chain, and tension springs are arranged at the upper end and the lower end of the tension pulley.

Preferably, the bottom of spanner head is provided with the connector, the connector sets up to integration structure with the spanner head, it is fixed through the joint between connector and the draw-in groove.

Preferably, a rotating disc is nested inside the th opening, and the th rotating disc is movably connected with the th opening.

Preferably, a second rotating disc is nested in the second opening, and the second rotating disc is movably connected with the second opening.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses simple structure when the bolt is in constrictive space, can use this device, passes through adapter and spanner trepanning with electric spanner, ratchet spanner and is connected the drive, helps improving the dismouting work efficiency of bolt, and can change various spanner heads on the carousel, is applicable to the bolt of different models, has the great characteristics of rotation moment of torsion simultaneously, is applicable to the various middle-size and small-size bolt dismouting of common use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic bottom structure diagram of the present invention.

Fig. 3 is a schematic view of the cross-sectional structure of the present invention.

Fig. 4 is a schematic front cross-sectional structure of the present invention.

In the figure, the device comprises a device body 1, a device body 2, a shell 3, a driving chain wheel 4, a driven chain wheel 5, a transmission chain 6, a tensioning wheel 7, a tensioning spring 8, a wrench head 9, a wrench trepanning 10, a connector 11, an th rotating disc 12, a clamping groove 13, a connecting shaft 14, a th rotating shaft 15, a th rotating seat 16, a second rotating disc 17, a second connecting shaft 18, a second rotating shaft 19, a second rotating seat 20, a th opening 21 and a second opening.

Detailed Description

The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of , but not all embodiments.

Please refer to fig. 1-4, the present invention provides embodiments, wherein electric wrenches and ratchet wrench power transmission extension devices include a device body 1, a housing 2 is disposed on an outer surface of the device body 1, a driving sprocket 3 is disposed inside a right end of the housing 2, a second rotating shaft 18 is welded on an upper side surface of the driving sprocket 3, a end of the second rotating shaft 18, which is far away from the driving sprocket 3, is connected to the housing 2 through a second rotating base 19, a second connecting shaft 17 is fixed on a lower side surface of the driving sprocket 3 through welding, a end of the second connecting shaft 17, which is far away from the driving sprocket 3, is fixed with a second rotating disc 16 through welding, a wrench socket 9 is disposed in a middle portion of a bottom surface of the second rotating disc 16, a driven sprocket 4 is disposed inside a left end of the housing 2, a driven sprocket 634 is connected to the driving sprocket 3 through a driving chain 5, a front side middle portion of the driving chain 5 is provided with a model number 6, upper and lower ends of tensioning springs 7 are disposed at upper and lower ends of tensioning wheels 638, the tensioning wheels 6, the driven sprocket 4 rotates to drive the driven sprocket 4 through a driving chain to drive the driven sprocket 4, a wrench socket 638 is disposed between the rotating disc 2, a wrench socket 638 and a wrench socket 9, a wrench socket 638, a wrench socket is disposed between the rotating disc 2 and a wrench socket 638, a wrench socket 9, a wrench socket for facilitating replacement of a wrench socket 18, a wrench socket for replacing a wrench socket for a wrench socket, a wrench socket for replacing a wrench socket for a wrench head, a wrench head suitable for replacing a wrench head, a wrench head suitable for replacing a wrench head suitable for a wrench.

The theory of operation, the utility model discloses when using, need right the utility model discloses carry out simple structure understanding, but when the bolt of dismouting is in constrictive space, with electric wrench, ratchet spanner passes through the adapter and is connected the drive with spanner trepanning 9, ends that will install body 1 and have wrench end 8 stretch into in the constrictive space with bolted connection, electric wrench, ratchet spanner drive sprocket 3 rotates, drive sprocket 3 rotates and drives driven sprocket 4 through drive chain 5 and rotate, driven sprocket 4 rotates and drives wrench end 8 through connecting axle 13 and carousel 11 and rotates, the bolt is dismantled and assembled, easy operation is convenient, can dismantle between carousel 11 and the wrench end 8, be convenient for change various wrench ends 8, be applicable to the bolt of different models, therefore, the clothes hanger is strong in practicability.

It will thus be seen that the present invention is not limited to the details of the foregoing illustrative embodiments, but is capable of implementation in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present invention shall be considered as illustrative and not restrictive at , and that the scope of the invention be determined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

The power transmission extension device for the electric wrench and the ratchet wrench comprises a device body (1) and is characterized in that a shell (2) is arranged on the outer surface of the device body (1), a driving sprocket (3) is arranged inside the right end of the shell (2), a second rotating shaft (18) is welded on the upper side surface of the driving sprocket (3), a end, far away from the driving sprocket (3), of the second rotating shaft (18) is connected with the shell (2) through a second rotating seat (19), a second connecting shaft (17) is fixed on the lower side surface of the driving sprocket (3) through welding, a second rotating disc (16) is fixed on the 8655 end, far away from the driving sprocket (3), of the second rotating disc (17) through welding, a wrench sleeve hole (9) is formed in the middle of the bottom surface of the second rotating disc (16), a driven sprocket (4) is arranged inside the left end of the shell (2), a fourth rotating disc (461) is fixed on the lower side surface of the driven sprocket (4) through welding, a third rotating disc (11) is fixed on the left side surface of the shell (2) through welding, a third rotating disc (9) is fixed on the lower side surface of the driven sprocket (9), a driven sprocket (9) through welding, a driven sprocket (9) is fixed on the left side surface of the driven sprocket (2) of the rotating disc (4) through welding, a driven sprocket (9) is fixed on the rotating disc (11) through welding, a left side surface of the rotating disc (9) is fixed on the rotating disc (9) of the rotating disc (11), a driven sprocket (9) is fixed on the rotating disc (9) of the rotating disc (11) through welding, a left side surface of the rotating disc (9).
2. The kinds of electric wrench and ratchet wrench power transmission extension device of claim 1, wherein the driven sprocket (4) is connected with the driving sprocket (3) through a transmission chain (5), a tension wheel (6) is arranged in the middle of the front side of the transmission chain (5), and tension springs (7) are arranged at the upper end and the lower end of the tension wheel (6).
3. The power transmission extension gear of electric spanners and ratchet spanners as claimed in claim 1, wherein the bottom of the spanner head (8) is provided with a connector (10), the connector (10) and the spanner head (8) are arranged into body structure, the connector (10) and the slot (12) are fixed by clamping.
4. A power transmission extension gear of electric wrench and ratchet wrench as claimed in claim 1, wherein the th opening (20) is nested with the th rotary disk (11), the th rotary disk (11) is movably connected with the th opening (20).
5. A wrench or ratchet wrench as claimed in claim 1, wherein the second opening (21) has a second rotatable plate (16) nested inside, and the second rotatable plate (16) is movably connected to the second opening (21).