CN2813217Y

CN2813217Y - Booster spanner with safety pin

Info

Publication number: CN2813217Y
Application number: CN 200520041401
Authority: CN
Inventors: 朱耀梁
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-10
Filing date: 2005-05-10
Publication date: 2006-09-06
Anticipated expiration: 2015-05-10

Abstract

The utility model relates to a boosting spanner with a safety pin. At present, a plurality of disclosed spanners (or named a boosting spanner, a boosting device) adopt a multi-stage planetary wheel structure to acquire a large reduction ratio. Under the condition that the ratio of the input torque and the output torque is large, when a user has improper operation or uses force exceeding the allowable torque force of the boosting spanner itself but continues to add force during disassembly and assembly, the boosting spanner can be damaged or bolts can be twisted off. The situation that a boosting spanner sold on a market can be damaged or bolts are twisted off often happens; in order to protect the boosting spanner and bolts from damage caused by improper use, the utility model provides a boosting spanner with a safety pin, which is composed of a cylinder body, an input shaft, a safety apparatus, a three-stage planetary wheel structure and a crank handle. Especially the safety apparatus of the boosting spanner has the advantages of simple structure, low cost and convenient exchange for a safety pin, and is a safe and labour-saving hand tool suitable for the disassembly and the assembly of a tyre nut and a fastener with a medium large specification in industrial and mining establishments.

Description

A kind of reinforcement spanner with safety pin

Affiliated technical field

The utility model relates to a kind of reinforcement spanner with safety pin, and it is nut, a bolt disassembly hand-operated tools a kind of not only laborsaving but also that can use safely.

Background technology

At present, discloseder (or claiming to add torque wrench, booster) adopts the multistage planet wheel construction can obtain very big speed reducing ratio, this input and output torque are than under the very big situation, the user is when misoperation or the dismounting torsion allowable that surpasses reinforcement spanner itself when continuing reinforcing, the damage of reinforcement spanner then can take place or twist off bolt, commercially available reinforcement spanner is damaged or twists off the bolt situation often generation.

Summary of the invention

In order to protect reinforcement spanner and bolt not to cause damaging because of improper use; the utility model provides a kind of reinforcement spanner with safety pin; the safety device of this reinforcement spanner; very simple on the structure; that makes is with low cost; the replacing of safety pin is very convenient, is a kind of a kind of safe, laborsaving hand-operated tools that is suitable for big specification securing member dismounting in lug nut and the industrial and mining enterprises.

Technical scheme

The reinforcement spanner of the band safety pin that the utility model relates to, be by cylindrical shell, power shaft, condom, the one-level planetary gear set, the secondary planet wheels, the third-level planetary wheels, form with wind, internal tooth in the cylindrical shell is a fixed teeth, with the shared engagement of star tooth in 3 groups of planetary gear set, the star tooth engagement of the centre tooth of power shaft and one-level planetary gear set, the star tooth engagement of the centre tooth of one-level planetary gear and secondary planet wheels, the star tooth engagement of the centre tooth of secondary planet wheel and third-level planetary wheels, a safety pin and a condom are arranged in the middle of the back segment of power shaft, one section notch of condom is pitched the position into safety pin, the one-level planetary gear set is identical with the secondary planet wheel group structure, and the end of wind is an octagonal hole, and the square tenon of size and condom matches.

One end of described cylindrical shell has enough can bear the dismounting nut, the arch form spike of bolt torque, the first half tube neck of arch form spike and cylindrical shell is an overall structure, the latter half of of cylindrical shell is a cylindrical tube that internal tooth is arranged, it has 3 groups of internal tooths that planetary gear set is public, described one, the secondary planet wheels are ring flanges that have 3 five equilibrium camber columns, there is a centre tooth at the ring flange center, also have 3 position of halving and the maintenance circular hole concentric on the ring flange with centre tooth, 3 star alligator axles respectively are housed in 3 circular holes, on 3 star alligator axles, a star tooth is arranged respectively, after an end cap that has 3 branches such as circular hole one-tenth to distribute is inserted in 3 star alligator axles two ends are welded, just be combined into one thus, the secondary planet wheels, described third-level planetary wheels are ring flanges that have 3 five equilibrium camber columns, there is an output shaft at the ring flange center, the front end side of the being tenon of output shaft, also have 3 position of halving and the maintenance circular hole concentric on the ring flange with output shaft, 3 star alligator axles respectively are housed in 3 circular holes on the ring flange, on 3 star alligator axles, a star tooth is arranged respectively, an end cap that has 3 branches such as circular hole one-tenth to distribute is inserted in 3 star alligator axles welds two ends, the third-level planetary wheels just have been combined into thus, described power shaft is: its end is a centre tooth, the centre is the cylinder that has step, the other end be one with condom work join cylinder, cylindrical centre is a cylinder pin hole, safety pin is loosening the insertion in the cylinder pin hole, cylindrical end has one to press closer screw safety pin is fixed, also has a compression spring in the cylinder, a steel ball, steel ball embeds in the groove of condom by the compression spring, make condom be inserted in difficult drop-off behind the power shaft, during use, the notch of condom is inserted in the safety pin, the anistree borehole jack of wind is gone in the square tenon of condom, when shaking wind, the notch of condom drives safety pin, the output axle head is promptly exported with tens of times input torque, when the moment of output surpasses the design strength of safety pin, safety pin is cut off by condom, can prevent that the reinforcement spanner from damaging or twisting off bolt, safety pin can be standby several, change and can continue behind the safety pin to use, this moment the user can check whether use proper.

Beneficial effect

The reinforcement spanner structure of this band safety pin is very simple, use also very convenient, it not only can be laborsaving but also can have prevented effectively that the reinforcement spanner from damaging or twisting off bolt, be particularly suitable for the dismounting of lug nut, also be adapted at the dismounting of big specification nut, bolt in the integrated mills such as industrial and mineral, oil field, boats and ships, petrochemical industry, chemical industry.

Below in conjunction with embodiment to further specifying as the utility model:

Fig. 1 is the reinforcement spanner structure figure of the utility model band safety pin,

Fig. 2 is an A-A cutaway view among Fig. 1,

Fig. 3 is the 1st, 2 a grade of planetary gear set structure chart

Fig. 4 is a 3rd level planetary gear set structure chart,

Fig. 5 is the 1st grade of planetary gear set B-B cutaway view among Fig. 1,

Fig. 6 is a C-C cutaway view among Fig. 1,

Among Fig. 1,1. arch form spike (1), 2. cylindrical shell, 3. third-level planetary wheels, 4. secondary planet wheels, 5. one-level planetary gear set, 6. power shaft, 7. baffle plate, 8. compression spring, 9. steel ball 10. presses closer screw, 11. winds,

Among Fig. 2,12. safety pins, 13. condoms,

Among Fig. 3,14. end caps, 15. star alligator axles, 16. star teeth, 17. fixed heads, 18. centre tooth,

Among Fig. 4,19. output shafts.

The specific embodiment:

The reinforcement spanner of the band safety pin that the utility model relates to, be by cylindrical shell (2), power shaft (6), condom (13), one-level planetary gear set (5), secondary planet wheels (4), third-level planetary wheels (3), and wind (11) is formed, its feature 1 is that the internal tooth in the cylindrical shell (2) is a fixed teeth, with the shared engagement of star tooth (16) in 3 groups of planetary gear set, centre tooth (18) that its feature 2 is power shaft (6) and the engagement of the star tooth (16) of one-level planetary gear set (5), the centre tooth of one-level planetary gear (18) meshes with the star tooth (16) of secondary planet wheels (4), the centre tooth (18) of secondary planet wheels (4) and the engagement of the star tooth (16) of third-level planetary wheels (3), its feature 3 is that the back segment centre of power shaft (6) has a safety pin (12) and a condom (13), one section notch of condom (13) is pitched the position into safety pin (12), its feature 4 is that one-level planetary gear set (5) is identical with secondary planet wheels (4) structure, its feature 5 is that the end of wind (11) is an octagonal hole, and the square tenon of size and condom (13) matches.

One end of described cylindrical shell (2) has enough can bear the dismounting nut, the arch form spike (1) of bolt torque, arch form spike (1) is an overall structure with the first half tube neck of cylindrical shell (2), the latter half of of cylindrical shell (2) is a cylindrical tube (2) that internal tooth is arranged, it has 3 groups of internal tooths that planetary gear set is public, described one-level planetary gear set (5), secondary planet wheels (4) are ring flanges that has 3 five equilibrium camber columns, there is a centre tooth (18) at the ring flange center, also have 3 position of halving and maintenance and the concentric circular hole of centre tooth (18) on the ring flange, 3 star alligator axles (15) respectively are housed in 3 circular holes, a star tooth (16) is respectively arranged on 3 star alligator axles (15), after an end cap (14) that has 3 branches such as circular hole one-tenth to distribute is inserted in 3 star alligator axles (15) two ends are welded, one-level planetary gear set (5) and secondary planet wheels (4) just have been combined into thus, described third-level planetary wheels (3) are ring flanges that has 3 five equilibrium camber columns, there is an output shaft (19) at the ring flange center, the front end side of the being tenon of output shaft (19), also have 3 position of halving and maintenance and the concentric circular hole of output shaft (19) on the ring flange, 3 star alligator axles (15) respectively are housed in 3 circular holes, a star tooth (16) is respectively arranged on 3 star alligator axles (15), after an end cap (14) that has 3 branches such as circular hole one-tenth to distribute is inserted in 3 star alligator axles (15) two ends are welded, third-level planetary wheels (3) just have been combined into thus, described power shaft (6) is: its end is centre tooth (18), the centre is the cylinder that has step, the other end is a cylinder of living and joining with condom (13), cylindrical centre is a cylinder pin hole, safety pin (12) is loosening the insertion in the cylinder pin hole, cylindrical end has one, and to press closer screw (10) fixing with safety pin (12), also has a compression spring (8) in the cylinder, a steel ball (9), steel ball (9) embeds in the groove of condom (13) by compression spring (8), make condom (13) be inserted in difficult drop-off behind the power shaft, during use, the notch of condom (13) is inserted in the safety pin (12), the anistree borehole jack of wind (11) is gone in the square tenon of condom (13), when shaking wind (11), the notch of condom (13) drives safety pin (12), output shaft (19) end is promptly exported with tens of times input torque, when the moment of output surpasses the design strength of safety pin (12), safety pin (12) is cut off by condom (13), can prevent that the reinforcement spanner from damaging or twisting off bolt, safety pin (12) can be standby several, can continue to use after changing safety pin (12), at this moment, the user can check whether use proper.

Claims

1. reinforcement spanner with safety pin, be by cylindrical shell (2), power shaft (6), condom (13), one-level planetary gear set (5), secondary planet wheels (4), third-level planetary wheels (3), and wind (11) is formed, it is characterized in that the internal tooth in the cylindrical shell (2) is a fixed teeth, with the shared engagement of star tooth (16) in 3 groups of planetary gear set, the centre tooth (18) of power shaft (6) and the engagement of the star tooth (16) of one-level planetary gear set (5), the centre tooth of one-level planetary gear (18) meshes with the star tooth (16) of secondary planet wheels (4), the centre tooth (18) of secondary planet wheels (4) and the engagement of the star tooth (16) of third-level planetary wheels (3), a safety pin (12) and a condom (13) are arranged in the middle of the back segment of power shaft (6), one section notch of condom (13) is pitched the position into safety pin (12), one-level planetary gear set (5) is identical with secondary planet wheels (4) structure, the end of wind (11) is an octagonal hole, and the square tenon of size and condom (13) matches.

2. a kind of reinforcement spanner according to claim 1 with safety pin, it is characterized in that, one end of described cylindrical shell (2) has enough arch form spikes (1) that can bear dismounting nut, bolt torque, arch form spike (1) is an overall structure with the first half tube neck of cylindrical shell (2), and the latter half of of cylindrical shell (2) is a cylindrical tube (2) that internal tooth is arranged.

3. a kind of reinforcement spanner according to claim 1 with safety pin, it is characterized in that, described one-level planetary gear set (5), secondary planet wheels (4) are ring flanges that has 3 five equilibrium camber columns, there is a centre tooth (18) at the ring flange center, also have 3 position of halving and maintenance and the concentric circular hole of centre tooth (18) on the ring flange, 3 star alligator axles (15) respectively are housed in 3 circular holes, a star tooth (16) is respectively arranged on 3 star alligator axles (15), an end cap (14) that has 3 branches such as circular hole one-tenth to distribute is inserted in behind 3 star alligator axles (15) the two ends welding, just has been combined into one-level planetary gear set (5) and secondary planet wheels (4) thus.

4. a kind of reinforcement spanner according to claim 1 with safety pin, it is characterized in that, described third-level planetary wheels (3) are ring flanges that has 3 five equilibrium camber columns, there is an output shaft (19) at the ring flange center, the front end side of the being tenon of output shaft (19), also have 3 position of halving and maintenance and the concentric circular hole of output shaft (19) on the ring flange, 3 star alligator axles (15) respectively are housed in 3 circular holes, a star tooth (16) is respectively arranged on 3 star alligator axles (15), an end cap (14) that has 3 branches such as circular hole one-tenth to distribute is inserted in behind 3 star alligator axles (15) the two ends welding, just has been combined into third-level planetary wheels (3) thus.

5. a kind of reinforcement spanner according to claim 1 with safety pin, it is characterized in that, described power shaft (6) is: its end is centre tooth (18), the centre is the cylinder that has step, the other end is a cylinder of living and joining with condom (13), cylindrical centre is a cylinder pin hole, safety pin (12) is loosening the insertion in the cylinder pin hole, cylindrical end has one, and to press closer screw (10) fixing with safety pin (12), also has a compression spring (8) in the cylinder, a steel ball (9), steel ball (9) embeds in the groove of condom (13) by compression spring (8), make condom (13) be inserted in difficult drop-off behind the power shaft, during use, in the notch insertion safety pin (12) with condom (13), the anistree borehole jack of wind (11) is gone in the square tenon of condom (13).