CN208681446U

CN208681446U - A kind of ratchet housing for Electric torque wrench

Info

Publication number: CN208681446U
Application number: CN201821482856.7U
Authority: CN
Inventors: 蔡鸣泉; 董政; 柳义平; 丁鑫磊; 朱洪涛
Original assignee: Weihai Weida Precision Casting Co Ltd
Current assignee: Weihai Weida Precision Casting Co Ltd
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2019-04-02
Anticipated expiration: 2028-09-11

Abstract

The utility model provides a kind of ratchet housing for Electric torque wrench, the technical issues of assembling cumbersome and higher cost which solve the ratchet housing of existing Electric torque wrench, it includes motor chassis and output bracing strut, cylindrical hole is equipped with inside motor chassis, several locating slots are uniformly opened up on the circumferencial direction of motor chassis, bearing hole is equipped between motor chassis and output bracing strut, it exports and is equipped with output shaft groove in bracing strut, the two sides of output shaft groove are symmetrically arranged with tumbler slot on output bracing strut, output shaft hole is respectively equipped on the outside of tumbler slot on output bracing strut, the utility model can be widely applied to Electric torque wrench technical field.

Description

A kind of ratchet housing for Electric torque wrench

Technical field

The utility model relates to field of power tools, more particularly, to a kind of ratchet housing for Electric torque wrench.

Background technique

Electric torque wrench is mainly used in the industries such as Steel Structure Installation, automobile tire assembly, specially installs steel construction, vapour The high-strength bolt of the fastenings such as wheel tire assembly, high-strength bolt is for connection to steel construction contact, assembly fastening tire is used , usually occur by way of Bolt；Ratchet housing is the core component of electric twisting spanner, carries fixed horse It reaches, important function, the ratchet housing such as transmitting torque are broadly divided into integral type and split type, split type structure product by structure difference Structural strength is high, long service life, is increasingly becoming main product, but because its assembly performance requires height, leads to each section part Machining accuracy is very high, and low efficiency, process costs are high, and heat-treatment distortion leads to high rejection rate, and waste of material is serious.

Summary of the invention

The utility model assembles cumbersome and higher cost technology aiming at the ratchet housing of existing Electric torque wrench Problem, provide it is a kind of assembly simply and the lower-cost ratchet housing for Electric torque wrench.

For this purpose, the utility model includes motor chassis and output bracing strut, cylindrical hole, motor machine are equipped with inside motor chassis Several locating slots are uniformly opened up on the circumferencial direction of shell, are equipped with bearing hole, output shaft branch between motor chassis and output bracing strut Output shaft groove is equipped in frame, the two sides for exporting output shaft groove on bracing strut are symmetrically arranged with tumbler slot, export on bracing strut Output shaft hole is respectively equipped on the outside of tumbler slot.

Preferably, motor chassis periphery is equipped with handle connecting portion, if handle connecting portion includes set on motor chassis periphery Dry positioning groove and positioning table.

Preferably, positioning groove is symmetrically distributed in the two sides of the axis of output shaft hole.

Preferably, motor chassis is equipped with several heat release holes.

Preferably, output shaft hole is two circular holes of different sizes.

Preferably, the axis perpendicular of the axis of output shaft hole and bearing hole.

Preferably, the axis of output shaft groove and the axis of bearing hole are parallel.

The utility model structure is compact to design rationally, installs motor by setting motor chassis, and heat release hole is arranged to electricity Machine heat dissipation；Handle is connected by setting handle connecting portion, is simple to manufacture, greatly reduces cost of manufacture；The utility model is adopted With piece rigid structure, the intensity of torque wrench is substantially increased, is prolonged its service life.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the cross-sectional view of Fig. 1；

Fig. 4 is the right view of Fig. 2.

Symbol description in figure:

1. motor chassis；2. exporting bracing strut；3. cylindrical hole；4. locating slot；5. heat release hole；6. bearing hole；7. output shaft Groove；8. tumbler slot；9. output shaft hole；10. positioning groove；11. positioning table；12. threaded hole.

Specific embodiment

Specific embodiment of the present utility model is described in detail with reference to the accompanying drawings.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model includes motor chassis 1 and output bracing strut 2, motor chassis 1 Inside be equipped with cylindrical hole 3, for installing motor inside cylindrical hole 3, motor chassis 1 is equipped with several heat release holes 5, to motor It radiates, several locating slots 4 is uniformly opened up on the circumferencial direction of motor chassis 1, locating slot 4 is rectangle locating slot, is answered Realization is matched with positioning key in motor with locating slot 4 to be located by connecting, and fixes motor chassis 1 in a circumferential direction with motor.

It is equipped with bearing hole 6 between motor chassis 1 and output bracing strut 2, bearing is installed inside bearing hole 6, exports in bracing strut 2 Equipped with output shaft groove 7, the axis of output shaft groove 7 is parallel with the axis of bearing hole 6, and it is recessed to export output shaft on bracing strut 2 The two sides of slot 7 are symmetrically arranged with tumbler slot 8, and for installing tumbler, tumbler is cooperated by the support of bearing and motor, output The outside of tumbler slot 8 is respectively equipped with output shaft hole 9 on bracing strut 2, and output shaft hole 9 is two circular holes of different sizes, output The axis perpendicular of the axis of axis hole 9 and bearing hole 6 installs output shaft inside output shaft hole 9, and output shaft one end is connected to steering Part, output shaft can rotate in output shaft hole 9, reach using the bolt hole or sleeve that unclamp or fasten required for output axis connection The purpose of output torque.

1 periphery of motor chassis is equipped with handle connecting portion, using the handle of handle connecting portion connection Electric torque wrench, handle Interconnecting piece includes that several positioning grooves 10 and positioning table 11, positioning groove 10 set on 1 periphery of motor chassis are symmetrically distributed in The two sides of the axis of output shaft hole 9, positioning groove 10 are matched with protrusion on handle, realize the fixation of ratchet housing and handle, It is equipped with threaded hole 12 in positioning table 11, is connect by screw with screw hole in handle at threaded hole 12, thus achieve a fixed connection, It is practical and convenient.

Only as described above, only specific embodiment of the utility model, when the utility model cannot be limited with this The range of implementation, therefore the displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the utility model patent protection scope, It should still belong to the scope that the utility model claims book is covered.

Claims

1. a kind of ratchet housing for Electric torque wrench, which is characterized in that it includes motor chassis and output bracing strut, institute It states and is equipped with cylindrical hole inside motor chassis, uniformly open up several locating slots, the horse on the circumferencial direction of the motor chassis Up to bearing hole is equipped between casing and the output bracing strut, output shaft groove, the output shaft are equipped in the output bracing strut The two sides of output shaft groove are symmetrically arranged with tumbler slot on bracket, are respectively equipped on the outside of tumbler slot on the output bracing strut Output shaft hole.

2. the ratchet housing according to claim 1 for Electric torque wrench, it is characterised in that outside the motor chassis It encloses and is equipped with handle connecting portion, the handle connecting portion includes several positioning grooves and positioning set on the motor chassis periphery Platform.

3. the ratchet housing according to claim 2 for Electric torque wrench, it is characterised in that the positioning groove pair Claim the two sides for being distributed in the axis of the output shaft hole.

4. the ratchet housing according to claim 1 for Electric torque wrench, it is characterised in that on the motor chassis Equipped with several heat release holes.

5. the ratchet housing according to claim 1 for Electric torque wrench, it is characterised in that the output shaft hole is Two circular holes of different sizes.

6. the ratchet housing according to claim 1 for Electric torque wrench, it is characterised in that the output shaft hole The axis perpendicular of axis and the bearing hole.

7. the ratchet housing according to claim 1 for Electric torque wrench, it is characterised in that the output shaft groove Axis it is parallel with the axis of the bearing hole.