CN101745803A

CN101745803A - Multi-head all-screwing type mechanical wrench

Info

Publication number: CN101745803A
Application number: CN201010105492A
Authority: CN
Inventors: 李云义
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-19
Filing date: 2010-01-19
Publication date: 2010-06-23

Abstract

The invention belongs to the technical field of tools, in particular to a multi-head all-screwing type mechanical wrench. The multi-head all-screwing type mechanical wrench is characterized in that a back end cover is arranged at the right end of an outer housing, an embedding hole is formed at the center of the right end surface of the outer housing for mounting the inner end of a driving shaft of a bearing support, and the outer end of the driving shaft extends out a bearing on a middle hole of the back end cover; an inner housing is in plug-in connection at the left end of the outer housing, a guide positioning trench is arranged between the outer housing and the inner housing; a front end cover is arranged at the outer end of the inner housing; a plurality of through holes are evenly distributed on the front end cover for mounting a rotating shaft of a sleeve of the bearing support; a sleeve shaft is fixedly connected at the inner end of the rotating shaft of the sleeve, and the sleeve shaft is mounted on the through hole on the left end surface of the inner housing; a driven rotating shaft is correspondingly arranged in the positions of the outer housing and the back end cover which correspond to the sleeve; the driven shaft is mounted on the through hole of the right end surface of the outer housing through a bearing, and the right end of the driven shaft is positioned on the bearing of the back end cover; a driving gear is arranged on the driving shaft and meshed with a driven gear on the driven shaft; and a torque adjusting clutch device is arranged between the outer housing and the inner housing. The multi-head all-screwing type mechanical wrench has the advantages of high working efficiency, safety and reliability, and is applicable to large-scale assembly line operation.

Description

Multi-head all-screwing type mechanical wrench

Technical field: the invention belongs to technical field of tools, be specifically related to a kind of multi-head all-screwing type mechanical wrench.

Background technology: at present, fixedly connected most employing screw bolt and nut between the part of appliance, the instrument one of installation and removal is hand-operated tools such as the stiff hand of usefulness single head, double end are stiff, box spanner, the 2nd, with electric socket wrench and pneumatic impact wrench, a nut or bolt can only be tightened or dismantle to these spanners once, has ineffective shortcoming.

Summary of the invention: the purpose of this invention is to provide a kind of high efficiency, safe and reliable, the multi-head all-screwing type mechanical wrench of especially suitable large-scale pipeline operation.

Technical scheme of the present invention is: a kind of multi-head all-screwing type mechanical wrench is characterized in that: the shell body right-hand member is provided with rear end cap, establishes inlaid hole in the shell body right side in the heart bearings driving shaft the inner is installed, and the driving shaft outer end is stretched out by the bearing on the rear end cap mesopore; At shell body left end grafting inner housing, be provided with the guide-localization groove between shell body and the inner housing; Drive end bearing bracket is established in the inner housing outer end; On drive end bearing bracket, be laid with a plurality of through holes the rotating shaft of bearing stop sleeve is installed; The inner affixed sleeve of sleeve rotating shaft, sleeve is installed on the through hole of inner housing left side by bearing; The corresponding driven spindle that is provided with on shell body and the rear end cap position corresponding with sleeve; Driven shaft is installed on the through hole of shell body right side by bearing, and the driven shaft right-hand member is positioned on the bearing on the rear end cap; Establish the driven gear engagement on driving gear and the driven shaft on the driving shaft; Between shell body and inner housing, establish torque adjusting clutch device.

Owing to adopt technique scheme, during use, according to the nut on the size adjustment bolt of required screwing force, determine the compression stress of compression spring, thereby regulated the size of the engagement force of left and right ratchet, when driving shaft counterclockwise drives the driving gear rotation, thereby driving all driven gears turns clockwise, by the left ratchet of torque adjusting clutch device and the engagement force between the right ratchet moment is passed to sleeve, Hexagonal jacket rotation in sleeve drives, thus realize tightening to securing member; When fastened nut or bolt reached specified screw-down torque, clutch is in slipping state did not work, fastening end-of-job.Thereby have high efficiency, and safe and reliable, the advantage of suitable large-scale pipeline operation.

Description of drawings: technical scheme of the present invention is described further below in conjunction with accompanying drawing and concrete enforcement.

Accompanying drawing is a structural representation of the present invention.

The specific embodiment: with reference to the accompanying drawings, a kind of multi-head all-screwing type mechanical wrench, shell body 10 right-hand members are provided with rear end cap 6, establish inlaid hole in shell body 10 right sides in the heart bearing 3 support driving shafts 1 the inner is installed, and driving shaft 1 outer end is stretched out by the bearing 2 on rear end cap 6 mesopores; At shell body 10 left end grafting inner housings 18, be provided with guide-localization groove 25 between shell body 10 and the inner housing 18; Drive end bearing bracket 21 is established in inner housing 18 outer ends; On drive end bearing bracket 21, be laid with a plurality of through holes 22 rotating shafts of bearing 20 stop sleevees are installed; The inner affixed sleeve 16 of sleeve 22 rotating shafts, sleeve 16 is installed on the through hole of inner housing 18 left sides by bearing 17; The corresponding driven spindle 19 that is provided with on the corresponding position of shell body 10 and rear end cap 6 and sleeve 22; Driven shaft 19 is installed on the shell body 10 right side through holes by bearing 9, and driven shaft 19 right-hand members are positioned on the bearing 5 on the rear end cap 6; Establish driven gear 8 engagements on driving gear 7 and the driven shaft 19 on the driving shaft 1; Between shell body 10 and inner housing 18, establish torque adjusting clutch device; Torque adjusting clutch device is established right thorn wheel 11 by driven shaft 19 the inners and is cooperated the clutch and the nut 23 on the drive end bearing bracket 21 that constitute to cooperate the torque adjusting device that constitutes to form with screw rod 24 with left ratchet 12; 12 on the ratchet in a left side is plugged in the axis hole of sleeve 16; On the sleeve 16 between inner housing 18 and the sleeve 16,, establish single direction thrust ball bearing 13 between spring pad 14 and the left ratchet 12 by left-to-right compression spring 15, the spring pad 14 of being provided with successively; Screw rod 24 right-hand members are fixed on the right side of shell body 10, and screw rod 24 left ends are stretched out with nut 23 by the through hole on inner housing 18 left sides and the rear end cap 21 and are threaded; On the screw rod 24 between shell body 10 and the inner housing 18, also be provided with back-moving spring 4; Sleeve 22 described in the present embodiment and corresponding driven shaft 19 quantity are 2.Also can sleeve 22 and corresponding driven shaft 19 quantity be made as 4 or 6 or 8 or more according to the practical operation needs.

Claims

1. multi-head all-screwing type mechanical wrench, it is characterized in that: shell body (10) right-hand member is provided with rear end cap (6), establish inlaid hole in shell body (10) right side in the heart bearing (3) support driving shaft (1) the inner is installed, driving shaft (1) outer end is stretched out by the bearing (2) on rear end cap (6) mesopore; At shell body (10) left end grafting inner housing (18), be provided with guide-localization groove (25) between shell body (10) and the inner housing (18); Drive end bearing bracket (21) is established in inner housing (18) outer end; On drive end bearing bracket (21), be laid with a plurality of through holes bearing (20) stop sleeve (22) rotating shaft is installed; The inner affixed sleeve (16) of sleeve (22) rotating shaft, sleeve (16) is installed on the through hole of inner housing (18) left side by bearing (17); The corresponding driven spindle (19) that is provided with on shell body (10) and rear end cap (6) position corresponding with sleeve (22); Driven shaft (19) is installed on the through hole of shell body (10) right side by bearing (9), and driven shaft (19) right-hand member is positioned on the bearing (5) on the rear end cap (6); Establish driven gear (8) engagement on driving gear (7) and the driven shaft (19) on the driving shaft (1); Between shell body (10) and inner housing (18), establish torque adjusting clutch device.

2. by the described a kind of multi-head all-screwing type mechanical wrench of claim 1, it is characterized in that: described torque adjusting clutch device is established right thorn wheel (11) by driven shaft (19) the inner and is cooperated the clutch and the nut (23) on the drive end bearing bracket (21) that constitute to cooperate the torque adjusting device that constitutes to form with screw rod (24) with left ratchet (12); Left side ratchet (12) axle is plugged in the axis hole of sleeve (16); Sleeve (16) between inner housing (18) and sleeve (16) is gone up by left-to-right compression spring (15), the spring pad (14) of being provided with successively, establishes single direction thrust ball bearing (13) between spring pad (14) and the left ratchet (12); Screw rod (24) right-hand member is fixed on the right side of shell body (10), and screw rod (24) left end is stretched out with nut (23) by the through hole on inner housing (18) left side and the rear end cap (21) and is threaded; On the screw rod (24) between shell body (10) and the inner housing (18), also be provided with back-moving spring (4).

3. by the described a kind of multi-head all-screwing type mechanical wrench of claim 1, it is characterized in that: described sleeve (22) and corresponding driven shaft (19) quantity are 2,4,6 or 8 or more.