CN204035690U - A kind of interference bolts assemblies Pneumatic mechanical type puller system - Google Patents
A kind of interference bolts assemblies Pneumatic mechanical type puller system Download PDFInfo
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- CN204035690U CN204035690U CN201420499298.0U CN201420499298U CN204035690U CN 204035690 U CN204035690 U CN 204035690U CN 201420499298 U CN201420499298 U CN 201420499298U CN 204035690 U CN204035690 U CN 204035690U
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Abstract
The utility model discloses a kind of interference bolts assemblies Pneumatic mechanical type puller system, comprise and rotate thread bush, air motor, source of the gas and decelerator and casing; Casing upper joint sleeve cylinder, in sleeve, center pull rod is set, rotating thread bush is enclosed within center pull rod, center pull rod one end is fixedly connected with casing, rotate between thread bush and sleeve and motion thread cover is set, motion thread cover coordinates with rotation thread bush screw-driven, motion thread cover arranges broaching operation rifle head away from one end of casing or breaks operation rifle head, being provided with the reamer connector for connecting center pull rod and reamer in broaching operation rifle head, breaking in operation rifle head the bolt connection piece arranged for connecting center pull rod and interference bolt.The power that air motor exports effectively can be converted to operable larger pulling force by this Pneumatic mechanical type puller system mechanically, can effectively avoid adopting tension machine and gas liquid pressure converting member, makes whole equipment volume small and exquisite.
Description
Technical field
The utility model relates to a kind of Pneumatic mechanical type puller system, specifically relates to a kind of interference bolts assemblies Pneumatic mechanical type puller system.
Background technology
At bridge, the structural member of the equipment such as aircraft is in tight screwing process, in order to improve structural strength, the structural member being riveted on one piece is needed to two, two parts content has been required from technique, one is will broach to the connecting hole reamer of fit structure part in advance, to eliminate in assembling process two relative position tolerances needing with bolt union piece hole, the bolt hole center of two connectors is accurately aimed at, around homogenize material is stressed afterwards to realize bolt carrying, two is in screwing process, assemble with uniform quasistatic pulling force, puller system needs to provide enough pulling force, to ensure to allow tension intensity protector to break auxiliary connector after interference bolt is forgotten about it cooperation position and from its front end.
The particular/special requirement of secure context is assemblied according to bridge and aircraft class formation part, on-the-spot generally permission uses electric tool, limit and use compressed air to provide power source, interference bolt common at present draw be hinged standby, in order to reduce the volume and weight of handheld operation equipment, the general fluid pressure using the Compressed Gas power-conversion being first about 0.6MPa ~ 0.8MPa pressure to become pressure to be about 30MPa, again hydraulic oil is incorporated into hand-held hydraulic and makees cylinder, hinge processing is drawn at realization scene, conventional gas hydraulic pressure conversion method has two kinds, a kind of is the hydraulic piston cylinder promoting small cross-sectional area with the gas piston cylinder that heavy in section is amassed, its feature is easy and simple to handle, shortcoming is that volume and weight is all large, another kind of conversion method uses miniature high-speed reciprocating piston pump, the cylinder diameter of gas and liquid is all smaller, but speed is very fast, inventor has also carried out corresponding product design (with reference to papers written by postgraduates: the improvement development of aircraft pneumatic rivet puller) successively, although the product made functionally meets requirement, but be exactly 2 deficiencies, one is not only need hand-held hydraulic puller system, also need a gas hydraulic pressure converting member, its weight reaches about 40kg, and also need between the two to use many control pipers, execute-in-place inconvenience.
Common pneumatic conversion fluid pressure type draw be hinged standby; there is no push rod device for limiting expansion; so to stretch out and two end-limit positions of retracting all can not realize automatic spacing protection at push rod; easily cause the impact to hydraulic cylinder structure part; usually reach about 10 tons comparatively greatly because generally this process is stressed, its life-span can be had a strong impact on.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of interference bolts assemblies Pneumatic mechanical type puller system.High rpm low torque can be converted to low rotation speed large torque by this Pneumatic mechanical type puller system, thus effectively the power that air motor exports is converted to operable high pulling torque mechanically, effectively can avoid adopting tension machine and gas liquid pressure converting member, make whole equipment volume small and exquisite.
For achieving the above object, the technical solution adopted in the utility model is: a kind of interference bolts assemblies Pneumatic mechanical type puller system, it is characterized in that: comprise rotate thread bush, air motor, for the source of the gas of described air motor air feed and for power transmission that described air motor is exported to the decelerator rotating thread bush, and for receiving the casing of described decelerator, described casing is connected with sleeve, center pull rod is provided with in described sleeve, described rotation thread bush is enclosed within center pull rod, one end of described center pull rod is fixedly connected with casing, motion thread cover is provided with between described rotation thread bush and sleeve, described motion thread cover coordinates with rotation thread bush screw-driven, the guide structure doing rectilinear motion for guide sleeve along motion thread cover is provided with between described motion thread cover and sleeve, described motion thread cover is provided with broaching operation rifle head away from one end of casing or breaks operation rifle head, the reamer connector for connecting center pull rod and reamer is provided with in described broaching operation rifle head, describedly break in operation rifle head the bolt connection piece be provided with for connecting center pull rod and interference bolt.
Above-mentioned a kind of interference bolts assemblies Pneumatic mechanical type puller system, it is characterized in that: the gear shaft that described decelerator comprises primary speed-down gear wheel, double reduction gear wheel and is rotatably connected in casing, described primary speed-down gear wheel to be arranged on gear shaft and to be meshed with the pinion be arranged on air motor output shaft, described double reduction gear wheel is arranged on and rotates the position that thread bush stretches into casing, described gear shaft is provided with the travelling gear be meshed with double reduction gear wheel.
Above-mentioned a kind of interference bolts assemblies Pneumatic mechanical type puller system, it is characterized in that: described guide structure comprises the guide ribs be arranged on motion thread cover outer wall, the length direction that described guide ribs is overlapped along described motion thread extends, and the inwall of described sleeve is provided with the guiding groove be slidably matched with described guide ribs.
Above-mentioned a kind of interference bolts assemblies Pneumatic mechanical type puller system, is characterized in that: be provided with the reversal valve for controlling air motor forward or reverse between described air motor and source of the gas.
Above-mentioned a kind of interference bolts assemblies Pneumatic mechanical type puller system, it is characterized in that: described sleeve is provided with the retrogressing positive stop for limiting sleeve backwards extreme position and the reach positive stop for limiting sleeve reach extreme position, the outer wall of described motion thread cover offers the groove extended along motion thread cover length direction, described motion thread puts and is positioned at described groove to be had for described retraction positive stop with stretch out the position limiting slide block that positive stop matches near one end of casing.
Above-mentioned a kind of interference bolts assemblies Pneumatic mechanical type puller system, it is characterized in that: one end of described bolt connection piece is threaded with center pull rod, the other end of described bolt connection piece is connected with interference bolt thread.
Above-mentioned a kind of interference bolts assemblies Pneumatic mechanical type puller system, it is characterized in that: described reamer connector comprises internal core rod and is enclosed within the clamping sliding sleeve outside described internal core rod, described internal core rod offers the installing hole stretched into for reamer, described internal core rod offers two radial holes be connected with described installing hole, the clamping smallclothes for clamping reamer are provided with in two described radial holes, described clamping sliding sleeve offers two draw-in grooves corresponding with described clamping smallclothes, bulge loop is provided with in described internal core rod and near one end of center pull rod, in described internal core rod and described bulge loop and clamping sliding sleeve between spring is set, described broaching operation rifle head is provided with away from one end of center pull rod and clamps sliding sleeve outer face and abut the boss coordinated, described broaching operation rifle head is connected with motion thread external threading.
Above-mentioned a kind of interference bolts assemblies Pneumatic mechanical type puller system, is characterized in that: be provided with the back-up ring preventing clamping sliding sleeve from skidding off from internal core rod between described boss and internal core rod.
The utility model compared with prior art has the following advantages:
1, the utility model only uses single compressed aerodynamic force, pure frame for movement realizes only having the output of 0.3Nm to change into the axial tension with about 10 tons air motor driving torque, the weight of whole equipment only has about 7kg, 1/3 to 10th of existing equipment weight, achieve monomer hand-hold portable structure, processing or the bolt tension of riveted holes is carried out in the application scenario being specially adapted to narrow space.
2, the utility model is by the decelerator of appropriate design, both the volume of equipment had been reduced, ensure that the requirement to driving member intensity when providing output high pulling torque simultaneously, mechanical spiral is used to provide thrust, compared with hydraulic system, reduce the accuracy of manufacture requirement to part, simultaneously when in use procedure due to wearing and tearing and when there is mechanical micro-strain, equipment still can normally work, and reduces the requirement to plant maintenance.
3, the utility model adopts pure frame for movement, avoiding legacy equipment uses hydraulic system easily to produce the shortcoming of leakage of oil, portable integrated structure also simplify oil circuit control and gas piping, adds the reliability of equipment, avoids the potential safety hazard because using high-pressure oil pipe to bring.
4, the utility model is by arranging guide structure, ensure that motion thread cover can not rotate with rotation thread bush on the one hand, guide sleeve can do linear sliding motion along motion thread cover on the other hand.
5, the utility model retreats positive stop and reach positive stop by arranging, can set two extreme positions of sleeve along the movement of motion thread cover, thus coming off that sleeve and motion thread can be avoided to overlap, avoid sleeve to move to impact to fit structure part when overstepping the extreme limit position simultaneously.
In sum, the utility model structure is simple, and rationally novel in design, functional reliability is high, significantly reduces volume and the weight of equipment, and easy to use, maintainability is good, extends service life.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model is in when broaching operation.
Fig. 2 is the structural representation that the utility model is in when breaking operation.
Fig. 3 is the enlarged drawing at A place in Fig. 1.
Fig. 4 is the enlarged drawing at B place in Fig. 2.
Fig. 5 is the annexation schematic diagram of the utility model reversal valve and source of the gas and air motor.
Fig. 6 is the structural representation of the utility model decelerator.
Fig. 7 is the utility model center pull rod, rotates thread bush and motion thread cover annexation schematic diagram.
Fig. 8 is the structural representation of the utility model sleeve.
Fig. 9 is the structural representation of the utility model motion thread cover.
Description of reference numerals:
1-air motor; 2-decelerator; 2-1-pinion;
2-2-primary speed-down gear wheel; 2-3-gear shaft; 2-4-travelling gear;
2-5-double reduction gear wheel; 2-6-the first needle roller thrust bearing;
2-7-radial needle bearing; 2-8-radial axle bearing sleeve; 2-9-radial ball bearing;
2-10-deep groove ball bearing; 2-11-the second needle roller thrust bearing;
3-center pull rod; 4-casing; 5-case lid;
6-sleeve; 6-1-guiding groove; 7-motion thread cover;
7-1-guide ribs; 7-2-groove; 8-rotate thread bush;
9-broaching operation rifle head; 9-1-boss; 10-interference bolt;
10-1-reserved tension intensity protector; 11-reversal valve;
12-retraction positive stop; 13-stretch out positive stop; 14-position limiting slide block;
15-source of the gas; 16-reamer; 17-reamer connector;
17-1-internal core rod; 17-2-bulge loop; 17-3-clamping sliding sleeve;
17-4-clamping smallclothes; 17-5-spring; 17-6-installing hole;
17-7-draw-in groove; 17-8-back-up ring; 18-break operation rifle head;
19-bolt connection piece.
Detailed description of the invention
As shown in Figure 1, Figure 2 with a kind of interference bolts assemblies Pneumatic mechanical type puller system shown in Fig. 5, comprise rotate thread bush 8, air motor 1, for the source of the gas 15 of described air motor 1 air feed and for power transmission that described air motor 1 is exported to the decelerator 2 rotating thread bush 8, and for receiving the casing 4 of described decelerator 2, the side of described casing 4 is connected with sleeve 6, center pull rod 3 is provided with in described sleeve 6, described rotation thread bush 8 is enclosed within center pull rod 3, one end of described center pull rod 3 is fixedly connected with casing 4, motion thread cover 7 is provided with between described rotation thread bush 8 and sleeve 6, described motion thread cover 7 coordinates with rotation thread bush 8 screw-driven, the guide structure doing rectilinear motion for guide sleeve 6 along motion thread cover 7 is provided with between described motion thread cover 7 and sleeve 6, described motion thread cover 7 is provided with broaching operation rifle head 9 away from one end of casing 4 or breaks operation rifle head 18, the reamer connector 17 for connecting center pull rod 3 and reamer 16 is provided with in described broaching operation rifle head 9, describedly break in operation rifle head 18 bolt connection piece 19 be provided with for connecting center pull rod 3 and interference bolt 10.
In the present embodiment; this Pneumatic mechanical type puller system on the one hand can by reamer 16 in advance to the connecting hole of fit structure part with carrying out broaching operation; on the other hand; can also after broaching operation completes; again interference bolt 10 is broken after installing interference bolt 10; namely broaching operation rifle head 9 is replaced with breaking operation rifle head 18; replace reamer connector 17 with bolt connection piece 19 simultaneously; and described bolt connection piece 19 is connected with interference bolt 10, thus at the reserved tension intensity protector 10-1 place of interference bolt 10, interference bolt 10 is broken.The assembling of interference bolt can be completed easily by this Pneumatic mechanical type puller system.
Concrete, when this Pneumatic mechanical type puller system carries out broaching operation to the connecting hole of fit structure part in advance by reamer 16, reamer 16 is stretched in the connecting hole on fit structure part, and make broaching operation rifle head 9 be against on fit structure part, now air motor 1 is started working, the high rotating speed exported by air motor 1 by decelerator 2 is reduced to the high pulling torque slow-speed of revolution, and then driven rotary thread bush 8 turns clockwise, rotate thread bush 8 while turning clockwise, coordinated power transmission to motion thread cover 7 by screw-driven, now, because motion thread cover 7 is connected with broaching operation rifle head 9, described broaching operation rifle head 9 abuts with fit structure part again and coordinates, simultaneously, because the rotary motion of guide structure to motion thread cover 7 limits, therefore, described motion thread cover 7 both moved without spin, again without rectilinear motion, but owing to rotating thread bush 8 transmission outputting power, and then casing 4 can be driven along motion thread cover 7 to the direction away from fit structure part to do rectilinear motion (namely retreating), casing 4 is while retrogressing, sleeve 6, decelerator 2, center pull rod 3 retreats together with reamer connector 17 and reamer 16, thus make the connecting hole on reamer 16 pairs of fit structure parts carry out broaching operation, when sleeve 6 moves to retrogressing extreme position, next air motor 1 is made to reverse again, be rotated counterclockwise by decelerator 2 driven rotary thread bush 8, in like manner, owing to rotating thread bush 8 while being rotated counterclockwise, coordinated power transmission to motion thread cover 7 by screw-driven, rectilinear motion (namely moving forward) is done with moving sleeve 6 along motion thread cover 7 to the direction near fit structure part under the effect of screw-driven outputting power, sleeve 6 is while reach, drive casing 4, decelerator 2, center pull rod 3 moves forward together with reamer connector 17 and reamer 16, thus make the connecting hole on reamer 16 pairs of fit structure parts carry out broaching operation in the other direction, when sleeve 6 moves to reach extreme position, air motor 1 is made to rotate forward again, thus to the broaching operation that the connecting hole on fit structure part carries out repeatedly.
On the other hand, when breaking operation to interference bolt 10, unload broaching operation rifle head 9, then will break operation rifle head 18 is connected on motion thread cover 7, bolt connection piece 19 is connected with interference bolt 10 with center pull rod 3 simultaneously, and make broaching operation rifle head 9 be against on fit structure part, air motor 1 rotates, and be reduced to the high pulling torque slow-speed of revolution by the high rotating speed that air motor 1 exports by decelerator 2, and then driven rotary thread bush 8 rotates, rotate thread bush 8 while rotation, coordinated power transmission to motion thread cover 7 by screw-driven, now, because motion thread cover 7 is connected with broaching operation rifle head 9, described broaching operation rifle head 9 abuts with fit structure part again and coordinates, simultaneously, because the rotary motion of guide structure to motion thread cover 7 limits, therefore described motion thread cover 7 both moved without spin, again without rectilinear motion, but owing to rotating thread bush 8 transmission outputting power, casing 4 is driven to do rectilinear motion (namely retreating) along motion thread cover 7 to the direction away from fit structure part, casing 4 is while retrogressing, sleeve 6, decelerator 2, center pull rod 3 retreats together with bolt connection piece 19 and interference bolt 10, and then interference bolt 10 is broken from its reserved tension intensity protector 10-1, thus complete interference bolt 10 break operation.
In the present embodiment, this Pneumatic mechanical type puller system adopts air motor 1 to provide power, and use decelerator 2 that the power that air motor 1 exports is reduced to the high pulling torque slow-speed of revolution, that is: the high speed rotating speed of 10000rpm air motor 1 exported converts to through decelerator 2 only has the large torque low speed of about 56rpm to rotate, screw-driven again by rotating thread bush 8 coordinates, the axial tension of about 10 tons can be produced, what effectively can complete the broaching operation of connecting hole in interference bolts assemblies process and interference bolt fast breaks operation, and when switching two kinds of operations, only need to change rifle head and bolt connection piece 19 or reamer connector 17, very easy to use.High rpm low torque, by arranging decelerator 2, is converted to low rotation speed large torque by it, thus the power effectively exported by air motor 1 is converted to operable high pulling torque mechanically, and realization can effectively draw hinge operation.And can avoid adopting tension machine and gas liquid pressure converting member, make whole equipment volume small and exquisite, the external diameter of its supporting part only has 56mm.
Composition graphs 6, the gear shaft 2-3 that described decelerator 2 comprises primary speed-down gear wheel 2-2, double reduction gear wheel 2-5 and is rotatably connected in casing 4, described primary speed-down gear wheel 2-2 to be arranged on gear shaft 2-3 and to be meshed with the pinion 2-1 be arranged on air motor 1 output shaft, described double reduction gear wheel 2-5 is arranged on and rotates the position that thread bush 8 stretches into casing 4, described gear shaft 2-3 is provided with the travelling gear 2-4 be meshed with double reduction gear wheel 2-5.
In the present embodiment, on described rotation the thread bush 8 and position corresponding with case lid 5 is overlapped and is had radial axle bearing sleeve 2-8, one end of described sleeve 6 is between case lid 5 and radial axle bearing sleeve 2-8, radial needle bearing 2-7 is provided with between described rotation thread bush 8 and radial axle bearing sleeve 2-8, radial ball bearing 2-9 is provided with between the output shaft of described air motor 1 and casing 4, all matched with casing 4 by deep groove ball bearing 2-10 in the two ends of described gear shaft 2-3, the first needle roller thrust bearing 2-6 is provided with between described double reduction gear wheel 2-5 and radial axle bearing sleeve 2-8, described rotation thread bush 8 is provided with the second needle roller thrust bearing 2-11 matched with casing 4 away from the other end of sleeve 6.By axially adopting the first needle roller thrust bearing 2-6 and the second needle roller thrust bearing 2-11, and adopt radial needle bearing 2-7 in radial direction, it has adapted to the specific environment of this system low-speed heave-load, significantly reduces dimensions of mechanical structures and improves bearing capacity.
In the present embodiment, export high rotating speed power carry out double reduction and form low rotation speed large torque power by primary speed-down gear wheel 2-2 and double reduction gear wheel 2-5 to air motor 1, its structure is simple, stable and reliable operation.
Composition graphs 8 and Fig. 9, described guide structure comprises and is arranged on motion thread and overlaps guide ribs 7-1 on 7 outer walls, described guide ribs 7-1 extends along the length direction of described motion thread cover 7, and the inwall of described sleeve 6 is provided with the guiding groove 6-1 be slidably matched with described guide ribs 7-1.By arranging guide structure, ensure that motion thread cover 7 can not rotate with rotation thread bush 8 on the one hand, guide sleeve 6 can do linear sliding motion along motion thread cover 7 on the other hand.
As shown in Figure 5, the reversal valve 11 for controlling air motor 1 forward or reverse is provided with between described air motor 1 and source of the gas 15.Described reversal valve 11 is 3 position-5 way hand-operated direction valve.The air inlet P of described reversal valve 11 is connected with source of the gas 15, and the work gas port A1 of described reversal valve 11 is connected with the entry/exit gas port A2 of air motor 1, and the work gas port B1 of described reversal valve 11 is connected with the entry/exit gas port B2 of air motor 1.In use, when reversal valve 11 is positioned at right position, now the work gas port A1 of reversal valve 11 is communicated with the gas returning port T1 of reversal valve 11, and the work gas port B1 of reversal valve 11 is connected with the air inlet P of reversal valve 11.Now, source of the gas 15 is air motor 1 air feed by reversal valve 11 and by the entry/exit gas port B2 of air motor 1, and air motor 1 is started working.When reversal valve 11 is positioned at left position, now the work gas port A1 of reversal valve 11 is communicated with the air inlet P of reversal valve 11, the work gas port B1 of reversal valve 11 is connected with the gas returning port T2 of reversal valve 11, source of the gas 15 is air motor 1 air feed by reversal valve 11 and by the entry/exit gas port B1 of air motor 1, and air motor 1 reverses.
As shown in Figure 1, Figure 2 and Figure 7, described sleeve 6 is provided with and retreats the retrogressing positive stop 12 of extreme position for limiting sleeve 6 and to move forward the reach positive stop 13 of extreme position for limiting sleeve 6, the outer wall of described motion thread cover 7 offers and overlaps along motion thread the groove 7-2 that 7 length directions extend, described motion thread cover 7 is positioned at described groove 7-2 and has near one end of casing 4 for described retraction positive stop 12 with stretch out the position limiting slide block 14 that positive stop 13 matches.
In the present embodiment, positive stop 12 and reach positive stop 13 is retreated by arranging, can set two extreme positions of sleeve 6 along 7 movements of motion thread cover, thus sleeve 6 and motion thread can be avoided to overlap 7 come off, avoid sleeve 6 to move to impact to fit structure part when overstepping the extreme limit position simultaneously.
As depicted in figs. 1 and 2, in the present embodiment, one end of described reversal valve 11 is arranged on moves back on positive stop 12, and the other end of described reversal valve 11 is arranged on reach positive stop 13.
As shown in Figure 4, one end of described bolt connection piece 19 is threaded with center pull rod 3, and the other end of described bolt connection piece 19 is threaded with interference bolt 10.Effectively ensure that the bonding strength of bolt connection piece 19 and center pull rod 3 and interference bolt 10.
As shown in Figure 3, described reamer connector 17 comprises internal core rod 17-1 and is enclosed within the clamping sliding sleeve 17-3 outside described internal core rod 17-1, described internal core rod 17-1 offers the installing hole 17-6 stretched into for reamer 16, described internal core rod 17-1 offers two radial holes be connected with described installing hole 17-6, the clamping smallclothes 17-4 for clamping reamer 16 is provided with in two described radial holes, described clamping sliding sleeve 17-3 offers two draw-in groove 17-7s corresponding with described clamping smallclothes 17-4, bulge loop 17-2 is provided with on described internal core rod 17-1 and near one end of center pull rod 3, described internal core rod 17-1 arranges spring 17-5 between described bulge loop 17-2 and clamping sliding sleeve 17-3, described broaching operation rifle head 9 is provided with away from one end of center pull rod 3 and clamps sliding sleeve 17-3 outer face and abut the boss 9-1 coordinated, described broaching operation rifle head 9 overlaps 7 with motion thread and is threaded.
As shown in figures 1 and 3, described broaching operation rifle head 9 is tube-in-tube structure, and one end and the motion thread of described tube-in-tube structure overlap 7 and be threaded, and the other end of described tube-in-tube structure is provided with boss 9-1.
As shown in Figure 2 and Figure 4, described in break operation rifle head 18 for tube-in-tube structure, one end and the motion thread of described tube-in-tube structure overlap 7 and are threaded.
In the present embodiment, when installing reamer 16, rotate broaching operation rifle head 9, broaching operation rifle head 9 is moved along motion thread cover 7 to the direction near casing 4, and then make broaching operation rifle head 9 drive clamping sliding sleeve 17-3 to move along internal core rod 17-1 by boss 9-1, clamping sliding sleeve 17-3 extrusion spring 17-5 while movement, move to upper corresponding to when clamping the position of smallclothes 17-4 with internal core rod 17-1 when clamping sliding sleeve 17-3, clamping smallclothes 17-4 slips in draw-in groove 17-7, now in the installing hole 17-6 of internal core rod 17-1, push reamer 16, reamer 16 passes between two clamping smallclothes 17-4, now rotate backward broaching operation rifle head 9 again, thus de-chucking sliding sleeve 17-3 is to the compression of spring 17-5, clamping smallclothes 17-4 skids off draw-in groove 17-7 and is clamped by reamer 16, complete the installation of reamer 16, also adopt during dismounting reamer 16 and use the same method, the Quick-clamped of reamer 16 can be realized by described reamer connector 17 and unclamp, very easy to use.
As shown in Figure 3, the back-up ring 17-8 preventing clamping sliding sleeve 17-3 from skidding off from internal core rod 17-1 is provided with between described boss 9-1 and internal core rod 17-1.By arranging back-up ring 17-8, can effectively prevent clamping sliding sleeve 17-3 from skidding off from internal core rod 17-1.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solutions of the utility model.
Claims (8)
1. an interference bolts assemblies Pneumatic mechanical type puller system, it is characterized in that: comprise rotate thread bush (8), air motor (1), for the source of the gas (15) of described air motor (1) air feed and for power transmission that described air motor (1) is exported to the decelerator (2) rotating thread bush (8), and the casing (4) for receiving described decelerator (2); described casing (4) is connected with sleeve (6), center pull rod (3) is provided with in described sleeve (6), described rotation thread bush (8) is enclosed within center pull rod (3), one end of described center pull rod (3) is fixedly connected with casing (4), motion thread cover (7) is provided with between described rotation thread bush (8) and sleeve (6), described motion thread cover (7) coordinates with rotation thread bush (8) screw-driven, the guide structure doing rectilinear motion for guide sleeve (6) along motion thread cover (7) is provided with between described motion thread cover (7) and sleeve (6), described motion thread cover (7) is provided with broaching operation rifle head (9) away from one end of casing (4) or breaks operation rifle head (18), the reamer connector (17) for connecting center pull rod (3) and reamer (16) is provided with in described broaching operation rifle head (9), describedly break in operation rifle head (18) bolt connection piece (19) be provided with for connecting center pull rod (3) and interference bolt (10).
2. a kind of interference bolts assemblies Pneumatic mechanical type puller system according to claim 1, it is characterized in that: described decelerator (2) comprises primary speed-down gear wheel (2-2), double reduction gear wheel (2-5) and the gear shaft (2-3) be rotatably connected in casing (4), described primary speed-down gear wheel (2-2) is arranged on gear shaft (2-3) and goes up and be meshed with the pinion (2-1) be arranged on air motor (1) output shaft, described double reduction gear wheel (2-5) is arranged on and rotates the position that thread bush (8) stretches into casing (4), described gear shaft (2-3) is provided with the travelling gear (2-4) be meshed with double reduction gear wheel (2-5).
3. a kind of interference bolts assemblies Pneumatic mechanical type puller system according to claim 1, it is characterized in that: described guide structure comprises the guide ribs (7-1) be arranged on motion thread cover (7) outer wall, described guide ribs (7-1) extends along the length direction of described motion thread cover (7), and the inwall of described sleeve (6) is provided with the guiding groove (6-1) be slidably matched with described guide ribs (7-1).
4. a kind of interference bolts assemblies Pneumatic mechanical type puller system according to claim 1, is characterized in that: be provided with the reversal valve (11) for controlling air motor (1) forward or reverse between described air motor (1) and source of the gas (15).
5. a kind of interference bolts assemblies Pneumatic mechanical type puller system according to claim 1, it is characterized in that: described sleeve (6) is provided with and retreats the retrogressing positive stop (12) of extreme position and the reach positive stop (13) for limiting sleeve (6) reach extreme position for limiting sleeve (6), the outer wall of described motion thread cover (7) offers the groove (7-2) extended along motion thread cover (7) length direction, described motion thread cover (7) is upper and be positioned at described groove (7-2) and have near one end of casing (4) for described retraction positive stop (12) with stretch out the position limiting slide block (14) that positive stop (13) matches.
6. a kind of interference bolts assemblies Pneumatic mechanical type puller system according to claim 1, it is characterized in that: one end of described bolt connection piece (19) is threaded with center pull rod (3), the other end of described bolt connection piece (19) is threaded with interference bolt (10).
7. a kind of interference bolts assemblies Pneumatic mechanical type puller system according to claim 1, it is characterized in that: described reamer connector (17) comprises internal core rod (17-1) and is enclosed within the clamping sliding sleeve (17-3) in described internal core rod (17-1) outside, described internal core rod (17-1) offers the installing hole (17-6) stretched into for reamer (16), described internal core rod (17-1) offers two radial holes be connected with described installing hole (17-6), the clamping smallclothes (17-4) for clamping reamer (16) are provided with in two described radial holes, described clamping sliding sleeve (17-3) offers two draw-in grooves (17-7) corresponding with described clamping smallclothes (17-4), described internal core rod (17-1) is upper and one end that is close center pull rod (3) is provided with bulge loop (17-2), described internal core rod (17-1) goes up and is positioned between described bulge loop (17-2) and clamping sliding sleeve (17-3) and arranges spring (17-5), described broaching operation rifle head (9) is provided with away from one end of center pull rod (3) and clamps sliding sleeve (17-3) outer face and abut the boss (9-1) coordinated, described broaching operation rifle head (9) is threaded with motion thread cover (7).
8. a kind of interference bolts assemblies Pneumatic mechanical type puller system according to claim 7, is characterized in that: be provided with the back-up ring (17-8) preventing clamping sliding sleeve (17-3) from skidding off from internal core rod (17-1) between described boss (9-1) and internal core rod (17-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499298.0U CN204035690U (en) | 2014-09-01 | 2014-09-01 | A kind of interference bolts assemblies Pneumatic mechanical type puller system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499298.0U CN204035690U (en) | 2014-09-01 | 2014-09-01 | A kind of interference bolts assemblies Pneumatic mechanical type puller system |
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| CN204035690U true CN204035690U (en) | 2014-12-24 |
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| CN201420499298.0U Expired - Fee Related CN204035690U (en) | 2014-09-01 | 2014-09-01 | A kind of interference bolts assemblies Pneumatic mechanical type puller system |
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| Country | Link |
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| CN (1) | CN204035690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308264A (en) * | 2014-09-01 | 2015-01-28 | 郝昱宇 | Pneumatic mechanical tensile machine for assembling interference bolt |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308264A (en) * | 2014-09-01 | 2015-01-28 | 郝昱宇 | Pneumatic mechanical tensile machine for assembling interference bolt |
| CN104308264B (en) * | 2014-09-01 | 2016-09-07 | 西安科技大学 | A kind of interference bolts assemblies Pneumatic mechanical type puller system |
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