CN101745883A

CN101745883A - Multi-bolt dismounting device

Info

Publication number: CN101745883A
Application number: CN200810204234A
Authority: CN
Inventors: 胡琛
Original assignee: Shanghai Kingfa Science and Technology Co Ltd
Current assignee: Shanghai Kingfa Science and Technology Co Ltd
Priority date: 2008-12-09
Filing date: 2008-12-09
Publication date: 2010-06-23

Abstract

The invention relates to a bolt dismounting device in the field of machinery, in particular to a dismounting device which is arranged at a fixed position and is needed to frequently dismount a plurality of bolts repeatedly. In a multi-bolt dismounting device, a plurality of bolts are distributed on the periphery of the same center; a plurality of driven shafts (5) are vertical to a limiting plate (1) and are arranged at positions, corresponding to bolts, on the limiting plate (1); tips, on the lower part of the limiting plate (1), of the driven shafts have structures matched with screw heads of the bolts; the positions, clung to the upside or the downside of the limiting plate (1), of the driven shafts (5) are sleeved with driven gears (6); on the limiting plate (1), a driving shaft (3) is arranged at a position in the center of each bolt and is vertical to the limiting plate (1); the driving shaft (3) is sleeved with a driving gear (2); the upper end of the driving shaft (3) is provided with a rotary handle (4); and the driving gear (2) is meshed with each driven gear (6).

Description

A kind of multi-bolt dismounting device

(1) technical field

The present invention relates to the bolt disassembly device of mechanical field, particularly relate to being installed in and need often back and forth a kind of attaching/detaching apparatus of a plurality of bolts of dismounting on the fixed position.

(2) background technology

In mechanical field, often to run into parts of dismounting by a plurality of bolting, each bolt position is the occasion of fixing on parts, such as in the plastic processing industry, the application of plastic extruder is very extensive, extruder often needs the cleaning head and head is carried out dismounting in operation process, head is to fix with four bolts and barrel, and the most important link of dismounting head is exactly the dismounting to four bolts, and the position of bolt on head fixed.The dismounting of prior art bolt is to dismantle respectively, assemble respectively with common wrench, and there is following shortcoming in prior art:

1. head temperature is higher, closely operates with artificial spanner, easily scalds the employee.

2. use the common wrench assembling-disassembling bolt, employee's physical demands is bigger.

3. need progressively to 4 bolt disassemblies with common wrench, preparation is more tired, the dismounting inefficiency, and cleaning efficiency is low.

4. when installation, to four bolt step-by-step operations, four suffered moments of torsion of bolt differ, and cause head not combine closely with barrel with common wrench, and leakiness material in process of production needs the employee additionally to clear up, and also can cause hidden danger of quality sometimes.

In order to make four bolting stressed evenly, as experience, generally require operating personnel when dismounting, to adopt the diagonal angle assembly method, promptly at first tentatively screw the one group of bolt in diagonal angle, and then another group bolt of preliminary precession, then the bolt that steps up first group more back screws, and so repeatedly back and forth screws, and finally reaches whole firm purpose.But the practice like this, the length that expends time in makes workman's operation longer time under the environment on high temperature next door, influences operating efficiency, and needs the workman to grasp certain skill, and task difficulty is big, and, often still can not reach the balanced requirement of dismantling and installing.

The production scene wishes to provide a kind of technical difficulty little, easy to operate very much, and the dismounting effect is synchronous many bolt disassemblies device uniformly.

(3) summary of the invention

Purpose of the present invention intends that a plurality of fastening bolts are arranged around a center, in order to fix, to connect some parts, needing often these set bolts to be dismantled assembling provides a kind of easy to operate, the stressed uniform device of many bolt disassemblies.

The objective of the invention is to be achieved through the following technical solutions:

A kind of multi-bolt dismounting device, at a plurality of bolts that are distributed in same central peripheral, it is characterized in that: the position corresponding on a limiting plate with each bolt, perpendicular to limiting plate a plurality of driven shafts are set, the termination that driven shaft is positioned at the limiting plate bottom is the structure that matches with bolt spiral shell head, driven shaft is nested with driven gear in the position of being close to above or below the limiting plate, on limiting plate, the center that is positioned at each bolt is provided with a driving shaft perpendicular to limiting plate, be nested with driving gear on the driving shaft, driving shaft upper end configuration turning handle, driving gear and each driven gear are meshing with each other.

The structure of described driven shaft lower end is a hexagon.

The structure of described driven shaft lower end is interior hexagon.

Described driving shaft and driven shaft are configured on the limiting plate by bearing arrangement.

The described a plurality of bolts that are distributed in a periphery are four bolts that are distributed in the quadrangle summit.

Adopt the technical program, limiting plate is placed on the top of waiting to unscrew the dismounting parts, termination, driven shaft below is inserted in the structure that is complementary with bolt, insert such as hexagon driven shaft termination in the bolt head of interior hexagonal, interior hexagon then is enclosed within each hexagon bolt head to be removed, other is such as cross, the square bolt head is cooperated with it by the shape that is consistent respectively, with the hand handle that turns clockwise, the driving gear that handle drives on the driving shaft turns clockwise, a circle then oppositely is rotated counterclockwise with the driven gear of driving gear engagement around, unscrew synchronously, unloaded a plurality of bolts, this moment can be quick, evenly unload, after the parts that unload are disposed by a plurality of bolted parts stressedly, plug bolt with order just now again, rotate in a counter-clockwise direction handle, produce the clockwise power of screwing this moment on driven shaft, last, simultaneously, screwed each bolt synchronously, firmly assembled the parts that unload in original position.Both installation rate was fast, and each is bolt strained, and evenly the monoblock parts are also installed stress equalization, was difficult for producing the defectives such as leakage that unbalance stress causes, also was difficult for because of bolt out of the ordinary stressed phenomenon of seriously damaging when screwing in advance.

This installs suitable a plurality of bolting that are used in, and the often parts place of palpus dismounting, and a plurality of bolt is distributed in a circumferential edge, does not occur the occasion of interfering between a plurality of driven gears and the driving gear.

Certainly, if the indivedual bolt positions of some occasion are more remote, the transmission by two transition driven gears also can realize.

If some occasion is more fixing, the mounting or dismounting amount is very frequent, and wherein the rotation of driving gear also can adopt power such as motor, pneumatic, hydraulic pressure to realize, improves speed, efficient and the work quality of dismounting more.

The present invention is simple in structure, and is easy to operate, can reach following effect to be: when 1. the employee operates and head certain distance is arranged, can avoid scalding the employee.2. utilize the gear drive principle, employee's physical demands reduces.3. a plurality of bolts are operated simultaneously, and together rotation improves dismounting efficient.4. the moment of torsion of a plurality of bolts is identical, avoids head closely not leak material with barrel owing to combining.

(4) description of drawings

Fig. 1 is the main TV structure schematic diagram of a kind of embodiment of a kind of multi-bolt dismounting device of the present invention;

Fig. 2 is the schematic perspective view of a kind of embodiment of a kind of multi-bolt dismounting device of the present invention, does not comprise limiting plate among the figure.

1. limiting plates among the figure, 2. driving gear, 3. driving shaft, 4. handle, 5. driven shaft, 6. driven gear.

(5) specific implementation method

Below in conjunction with accompanying drawing, the present invention is elaborated:

The plastic extruder head is connected with barrel by four hexagon-headed bolts, four hexagon socket head cap screws be distributed in a center around, also be similar on foursquare four summits, interior hexagonal groove is arranged on the bolt head.

Technical scheme of the present invention, on a limiting plate 1 with four positions that bolt is corresponding, perpendicular to limiting plate 1 four driven shafts 5 are set, the termination that driven shaft 5 is positioned at limiting plate 1 bottom is the hexgonal structure that matches with bolt spiral shell head, driven shaft 5 is nested with driven gear 6 being close to limiting plate 1 top position, on limiting plate 1, the center that is positioned at four bolts is provided with a driving shaft 3 perpendicular to limiting plate 1, be nested with driving gear 2 on the driving shaft 3, driving shaft 3 upper ends configuration turning handle 4, driving gear 2 is meshing with each other with each driven gear 6.Driving shaft 3 and driven shaft 5 are configured on the limiting plate 1 by bearing arrangement, can guarantee that gear rotates flexibly when work, can guarantee the constant relatively of each gear position again.

When needs cleaning plastic extruder head, the hexagonal head of four driven shaft 5 bottoms is inserted in four bolts of cross-head in the hexagonal groove, rotate counterclockwise handle 4, the head set bolt also rotates counterclockwise thereupon and withdraws from screw, thereby pulls down head.

Head cleans out head need be reinstalled the time, earlier the interior hexagonal groove of set bolt on the head is enclosed within on the hexagonal head of driven shaft 5 bottoms, integral body moves forward, and bolt is entered in the screw, clockwise rotates handle 4 then, handle 4 and driving shaft 3, driving gear 2 are fixed, also along with together rotating, driving gear 2 meshes with driven gear 6 driving gear 2, and four driven gears 6 also rotate with identical direction, thereby drive four head set bolts along with rotation, thereby screw head.

Described driving shaft and driven shaft are configured on the limiting plate by bearing arrangement, and described bearing can adopt the inner ring of bearing to exceed the outer ring slightly, can be so that inner ring and outer ring are welded to connect with axle and axis hole respectively easily.

Claims

1. multi-bolt dismounting device, at a plurality of bolts that are distributed in same central peripheral, it is characterized in that: go up the position corresponding with each bolt at a limiting plate (1), perpendicular to limiting plate (1) a plurality of driven shafts (5) are set, the termination that driven shaft (5) is positioned at limiting plate (1) bottom is the structure that matches with bolt spiral shell head, driven shaft (5) is nested with driven gear (6) in the position of being close to above or below the limiting plate (1), on limiting plate (1), the center that is positioned at each bolt is provided with a driving shaft (3) perpendicular to limiting plate (1), be nested with driving gear (2) on the driving shaft (3), driving shaft (3) upper end configuration turning handle (4), driving gear (2) is meshing with each other with each driven gear (6).

2. according to the described multi-bolt dismounting device of claim 1, it is characterized in that the structure of described driven shaft (5) lower end is a hexagon.

3. according to the described multi-bolt dismounting device of claim 1, it is characterized in that the structure of described driven shaft (5) lower end is interior hexagon.

4. according to the described multi-bolt dismounting device of claim 1, it is characterized in that described driving shaft (3) and driven shaft (5) are configured on the limiting plate (1) by bearing arrangement.

5. according to the described multi-bolt dismounting device of claim 1, it is characterized in that the described a plurality of bolts that are distributed in a periphery are four bolts that are distributed in the quadrangle summit.