CN206123564U - Heavy bolt combination fastening tool - Google Patents

Abstract

The utility model relates to a heavy bolt combination fastening tool, including the extension rod, be fixed in the extension rod front end quick lock on connection, be fixed in the terminal force exerting arm of extension rod, install heavy sleeve, locating plate, locking spring and locating pin on quick lock on connection, the extension rod leaves there is the location pinhole, it has the through -hole to open on the locating plate, and the extension rod passes the through -hole, but the locating plate is fixed in treats the arbitrary bearing in fastening bolt the place ahead, and locking spring housing lies in between locating pin and the locating plate on locating the extension rod, and the original length of locking spring is the same with the extension rod length between locating pin and the locating plate, the central point that through -hole on fastening bolt's axis and the locating plate was treated to the locating plate perpendicular to is on the axis of treating fastening bolt, when locking spring was in original length, the locating plate was to treating that the perpendicular distance between the fastening bolt front end is less than the length between extension rod front end to the locating plate. The utility model discloses simple structure, with low costs uses during the narrow and small heavy bolt -up in space -rated.

Description

A kind of heavy bolt combination fastening tool

Technical field

This utility model is related to a kind of heavy bolt combination fastening tool, belongs to plant equipment service kit technical field.

Background technology

Maximization, the automaticity continuous improvement designed with plant equipment, many difference in functionality parts need simultaneously On same component, compact in design can so reach purpose that is efficient, saving；Many heavy mechanical equipment components are more Dismounting heavy fixing bolt is needed when changing, and conventional heavy ratchet or hydraulic torque spanner are only in common, spacious space Used in, cannot meet use requirement in the case where narrow space, screw-down torque are required greatly, cause dismounting difficulty, maintenance mans Shi Zengjia, equipment install the generation of the series of problems such as not in place, follow-up maintenance workload increase, so as to cause cost of equipment maintenance Rise, affect normal overhaul of the equipments, and then affect normal production.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of heavy bolt combination fastening tool, can be in narrow and small sky Between quick, high-quality complete the fastening of heavy bolt, lift overhaul efficiency, reduce cost of equipment maintenance, it is ensured that normal production.

The technical scheme that this utility model is adopted for：

A kind of heavy bolt combination fastening tool, including extension rod, it is fixed on the fast fastening joint of extension rod front end, solid Force arm, the heavy sleeve being installed on fast fastening joint, location-plate, locking spring and positioning due to extension rod end Pin；The extension rod is radially provided with dowel hole, in alignment pin insertion dowel hole；Be provided with the location-plate diameter with Extend the through hole that matches of shank diameter, extension rod passes through through hole, location-plate be fixed on bolt front to be tightened arbitrarily can bearing, Locking spring housing is located between alignment pin and location-plate on extension rod, original length and alignment pin and the positioning of locking spring Extension pole length between plate is identical；Location-plate through hole on the axis and location-plate of bolt to be tightened is centrally located to be treated On the axis of fastening bolt；When locking spring be in original length when, location-plate between bolt front end to be tightened it is vertical away from From less than extension rod front end to the length between location-plate.

Above-mentioned a kind of heavy bolt combination fastening tool, it also includes the abutment sleeve and positioning being sheathed on extension rod Packing ring, abutment sleeve one end is provided with radial direction through hole, and the other end is circumferentially fixed an annular slab, and abutment sleeve is away from opening up radial direction through hole The annular plate surface of one end offset with one end of locking spring, alignment pin is through on the radial direction through hole and extension rod of abutment sleeve Dowel hole realizes the fixation to abutment sleeve；Space washer two sides respectively with location-plate and the other end phase of locking spring Support, locking spring is located between abutment sleeve and space washer, the original length of locking spring and abutment sleeve annular plate surface with Extension pole length between space washer is identical；The force arm is curved, and one end is fixed and perpendicular to prolonging with extension rod end Boom, the other end is provided with arm of force through hole.

Above-mentioned a kind of heavy bolt combination fastening tool, is provided with multiple diameters with alignment pin diameter phase on the extension rod The dowel hole of matching, the radial direction through hole diameter of described abutment sleeve one end is identical with dowel hole diameter；On the location-plate Through hole be U-shaped through hole, the center of circle of circle that U-shaped via bottoms circular arc is located is located on bolt axis to be tightened, the diameter of a circle with Extend shank diameter to match.

Using method of the present utility model is：First extension rod is made into the one of extension rod through the U-shaped through hole on location-plate Side wall contacts with U-shaped through hole circular arc bottom, and space washer, locking spring and abutment sleeve are then set with extension rod successively, Alignment pin is inserted in the radial direction through hole of suitable dowel hole and abutment sleeve according to locking spring original length；To extension rod End direction pulls extension rod to make locking spring-compressed, when extension rod front end to the length between location-plate less than location-plate to treating During vertical dimension between fastening bolt front end, the heavy sleeve matched with bolt to be tightened is installed on into extension rod front end In fast fastening joint, come up extension rod, and extension rod is moved in the presence of locking spring force to bolt direction to be tightened Dynamic, holding extension rod makes heavy sleeve be sheathed on bolt to be tightened, heavy sleeve in the presence of locking spring force tightly It is pressed against on bolt to be tightened, now, bolt to be tightened, heavy sleeve, the dead in line of extension rod；Install on arm of force through hole The force application means such as the connectors such as lock, connection jack tighten on bolt to be tightened；In the case where Bolt Tightening Force is required strictly, In order to prevent bolt tension from rupturing, jack can be installed in the arm of force through hole side of force arm, be provided to force arm with jack Whether torsional forces, with jack pressure table calculation and check institute fastening bolt required screwing force is met, excessively tight so as to effectively prevent Gu caused bolt fracture.

The beneficial effects of the utility model are：

The locking spring of this utility model can ensure that heavy sleeve is tightly pressed against on bolt to be tightened, when preventing bolt from fastening Release；Through hole can ensure that bolt axis to be tightened overlaps all the time with rod axis are extended in tightening process for a bolt on location-plate, prevent Only extension rod is glanced off；The design of force arm and arm of force through hole can be according to needed for bolt fastening force select jack or jack Etc. force application means, coupling mechanism force when bolt is fastened is improved；This utility model fast fastening joint and locking spring are standard component, Can targetedly be selected according to bolt to be tightened and extension rod size, adaptive surface is wider；This utility model simple structure, into This low, excellent performance, is particularly well-suited to be used when the big equipment fixing bolt of narrow space, screw-down torque requirement is fastened, and can show Write and lift overhaul efficiency, reduce cost of equipment maintenance, it is ensured that normal production.

Description of the drawings

Fig. 1 is this utility model assembling schematic diagram；

Fig. 2 is extension rod and force arm schematic diagram；

Fig. 3 is abutment sleeve schematic diagram；

Fig. 4 is location-plate schematic diagram；

Fig. 5 is force arm schematic diagram；

It is labeled as in figure：Extension rod 1, fast fastening joint 2, force arm 3, heavy sleeve 4, location-plate 5, locking spring 6, Alignment pin 7, dowel hole 8, through hole 9, abutment sleeve 10, space washer 11, radial direction through hole 12, annular slab 13, arm of force through hole 14.

Specific embodiment

Fig. 1～Fig. 5 is the schematic diagram of this utility model one embodiment；Show in figure, a kind of heavy spiral shell of this utility model Bolt combines fastening tool, including extension rod 1, is fixed on the fast fastening joint 2 of the front end of extension rod 1, is fixed on the end of extension rod 1 Force arm 3, the heavy sleeve 4 being installed on fast fastening joint 2, location-plate 5, locking spring 6, alignment pin 7, abutment sleeve 10 and space washer 11；Extension rod 1 is radially provided with the dowel hole 8 that multiple diameters match with the diameter of alignment pin 7；It is fixed Position plate 5 is fixed on the ground of bolt front to be tightened, quantity is provided with location-plate 5 multiple with bolt quantity identical to be tightened logical Hole 9, through hole 9 is U-shaped through hole, and the width of the U-shaped mouth of U-shaped through hole matches with the diameter of extension rod 1, and each through hole 9 is corresponding to one Individual bolt to be tightened, extension rod 1 passes through a through hole 9 corresponding with bolt to be tightened；Location-plate 5 is treated tightly perpendicular to any one The center of circle of circle that the bottom circular arc of through hole 9 is located is located on bolt axis to be tightened on the axis and location-plate 5 of fixing bolt；Abutment sleeve 10 one end is provided with diameter and the diameter identical radial direction through hole 12 of dowel hole 8, and the other end is circumferentially fixed annular slab 13, annular Axis of the place plane of plate 13 perpendicular to abutment sleeve 10；Space washer 11, locking spring 6, the order of abutment sleeve 10 are sheathed on On extension rod 1, suitable dowel hole 8 is selected according to the original length of locking spring 6, alignment pin 7 is passed through into abutment sleeve 10 On radial direction through hole 12 and extension rod 1 on the fixation of realizing to abutment sleeve 10 of dowel hole 8, now, abutment sleeve 10 is remote Leave plane residing for the annular slab 13 of the one end for setting radial direction through hole 12 to offset with one end of locking spring 6, the two of space washer 11 Side offsets respectively with the other end of location-plate 5 and locking spring 6, and locking spring 6 is located at abutment sleeve 10 and space washer 11 Between, the length of the extension rod 1 between the original length of locking spring 6 and the annular plate surface of abutment sleeve 10 and space washer 11 It is identical；When locking spring 6 is in original length, location-plate 5 to the vertical dimension between bolt front end to be tightened is less than extension The front end of bar 1 is to the extension pole length between location-plate 5；Force arm 3 is curved, and one end is fixed and vertical with the end of extension rod 1 In extension rod 1, the other end is provided with arm of force through hole 14.

Using method of the present utility model is：First extension rod 1 is made to prolong through a U-shaped through hole 9 on location-plate 5 The side wall of boom 1 contacts with the circular arc bottom of U-shaped through hole 9, and space washer 11, locking is then set with extension rod 1 successively Spring 6 and abutment sleeve 10, suitable dowel hole 8 and positioning sleeve are inserted according to the original length of locking spring 6 by alignment pin 7 In the radial direction through hole 12 of cylinder 10；Hand-held extension rod 1 to the end direction of extension rod 1 pulls extension rod 1 to compress locking spring 6, When the front end of extension rod 1 to the length between location-plate 5 less than location-plate 5 to vertical dimension between bolt front end to be tightened when, The heavy sleeve 4 matched with bolt to be tightened is installed in the fast fastening joint 2 of the front end of extension rod 1, is come up and is prolonged Boom 1, extension rod 1 is moved in the presence of the elastic force of locking spring 6 to bolt direction to be tightened, and holding extension rod 1 makes heavy set Cylinder 4 is sheathed on bolt to be tightened, and heavy sleeve 4 is tightly pressed against on bolt to be tightened in the presence of the elastic force of locking spring 6, Now, bolt to be tightened, heavy sleeve 4, the dead in line of extension rod 1；The connectors such as lock are installed on arm of force through hole 14, even Connect the force application means such as jack to tighten on bolt to be tightened；In the case where Bolt Tightening Force is required strictly, in order to prevent bolt mistake Tight fracture, can install jack in the bottom side of the arm of force through hole 14 of force arm 3, and moment of torsion is provided to force arm 3 with jack Whether power, with jack pressure table calculation and check institute fastening bolt required screwing force is met, so as to effectively prevent excessively fastening from leading The bolt fracture of cause.

Claims (3)

1. a kind of heavy bolt combination fastening tool, it is characterised in that：It includes extension rod（1）, be fixed on extension rod（1）Front end Fast fastening joint（2）, be fixed on extension rod（1）The force arm of end（3）, be installed on fast fastening joint（2）On weight Jacket cylinder（4）, location-plate（5）, locking spring（6）And alignment pin（7）；The extension rod（1）Radially it is provided with dowel hole （8）, alignment pin（7）Insertion dowel hole（8）In；The location-plate（5）On be provided with diameter and extension rod（1）Diameter match Through hole（9）, extension rod（1）Through through hole（9）, location-plate（5）Be fixed on bolt to be tightened front arbitrarily can bearing, it is locking Spring（6）It is sheathed on extension rod（1）Above and positioned at alignment pin（7）And location-plate（5）Between, locking spring（6）Original length With alignment pin（7）And location-plate（5）Between extension rod（1）Length it is identical；Location-plate（5）Perpendicular to the axle of bolt to be tightened Line and location-plate（5）Upper through hole（9）It is centrally located on the axis of bolt to be tightened；When locking spring（6）In original length When, location-plate（5）Vertical dimension to bolt front end to be tightened is less than extension rod（1）Front end is to location-plate（5）Between Length.

2. a kind of heavy bolt combination fastening tool as claimed in claim 1, it is characterised in that：It also includes being sheathed on extension Bar（1）On abutment sleeve（10）And space washer（11）, abutment sleeve（10）One end be provided with radial direction through hole（12）, the other end It is circumferentially fixed to have annular slab（13）, abutment sleeve（10）Away from opening up radial direction through hole（12）One end annular plate surface and locking bullet Spring（6）One end offset, alignment pin（7）Through abutment sleeve（10）Radial direction through hole（12）And extension rod（1）On alignment pin Hole（8）Realize to abutment sleeve（10）Fixation；Space washer（11）Two sides respectively with location-plate（5）With locking spring （6）The other end offset, locking spring（6）Positioned at abutment sleeve（10）And space washer（11）Between, locking spring（6）Original Beginning length and abutment sleeve（10）Annular plate surface and space washer（11）Between extension rod（1）Length it is identical；The force Arm（3）It is curved, one end and extension rod（1）End fix and perpendicular to extension rod（1）, the other end is provided with arm of force through hole （14）.

3. a kind of heavy bolt combination fastening tool as claimed in claim 2, it is characterised in that：The extension rod（1）On open There are multiple diameters and alignment pin（7）The dowel hole that matches of diameter（8）, the abutment sleeve（10）The radial direction through hole of one end （12）Diameter and dowel hole（8）Diameter it is identical；The location-plate（5）On through hole（9）For U-shaped through hole, U-shaped through hole bottom The center of circle of circle that portion circular arc is located is located on bolt axis to be tightened, the diameter of a circle and extension rod（1）Diameter match.