CN203998428U - Be wound around wheel hub and the long-pipe air respirator air feed car of compressed-air hose - Google Patents
Be wound around wheel hub and the long-pipe air respirator air feed car of compressed-air hose Download PDFInfo
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- CN203998428U CN203998428U CN201420416958.4U CN201420416958U CN203998428U CN 203998428 U CN203998428 U CN 203998428U CN 201420416958 U CN201420416958 U CN 201420416958U CN 203998428 U CN203998428 U CN 203998428U
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Abstract
The utility model provides a kind of wheel hub and long-pipe air respirator air feed car that is wound around compressed-air hose.The wheel hub of winding compressed-air hose of the present utility model, comprising: main shaft, comprise gas transmission axle and the pivot shaft of coaxial connection, and gas transmission axle has free air diffuser, is provided with the outlet passageway that at least one is connected with free air diffuser on the sidewall of gas transmission axle; Two flanges, are oppositely arranged on gas transmission axle and pivot shaft and can synchronously rotate with respect to gas transmission axle and pivot shaft; Flange strut bar, is removably connected between two flanges, and the axis of flange strut bar and the axis of main shaft are parallel to each other.Simple and the long service life of the wheel hub structure of winding compressed-air hose of the present utility model.
Description
Technical field
The utility model relates to respirator field, in particular to a kind of wheel hub and long-pipe air respirator air feed car that is wound around compressed-air hose.
Background technology
The compressed-air hose winding wheel hub structure using on existing long-pipe air respirator mostly is integral solder or flange bracing frame welded structure, these two kinds of versions all need to ensure right alignment requirement by welding process, manufacture craft more complicated, reach with process for machining and make on an equal basis under the requirement of precision at need, process costs is higher, meanwhile, remove and install with maintaining more difficult.
In the outlet of existing compressed-air hose winding wheel hub, pressure pipe joint is arranged on the gas transmission axle of cantilever beam structure more.In being wound around or launching, press in the process of long tube, middle pressure long tube pulls outlet connector, outlet connector applies radial pull to gas transmission axle, if the cantilever beam that this gas transmission axle is one-sided support, under the effect that is subject to radial pull, produce certain amount of deflection, on one-sided support axial plane, produce, increase abrasion loss.
When compressed-air hose winding wheel hub is applied on positive-pressure type long-pipe air respirator, much more severe the on-the-spot operating mode using is, the flexible pipe being wound around on wheel hub is in the process of launching or regain, be easy to the impurity in environment to bring into, if these impurity enter in the gas circuit hermetically-sealed construction on gas transmission axle, can make very quick-wearing inefficacy of seal ring, cause leakage.
Utility model content
The utility model aims to provide a kind of wheel hub and long-pipe air respirator air feed car of winding compressed-air hose of simple in structure and long service life.
To achieve these goals, according to an aspect of the present utility model, a kind of wheel hub that is wound around compressed-air hose is provided, comprise: main shaft, comprise gas transmission axle and the pivot shaft of coaxial connection, gas transmission axle has free air diffuser, is provided with the outlet passageway that at least one is connected with free air diffuser on the sidewall of gas transmission axle; Two flanges, are oppositely arranged on gas transmission axle and pivot shaft and can synchronously rotate with respect to gas transmission axle and pivot shaft; Flange strut bar, is removably connected between two flanges, and the axis of flange strut bar and the axis of main shaft are parallel to each other.
Further, two flanges comprise: inside flange; Outward flange, gas transmission axle and pivot shaft are arranged between inside flange and outward flange, and inside flange is connected with gas transmission axle, and outward flange is connected with pivot shaft.
Further, one end of gas transmission axle and the threaded one end of pivot shaft are connected.
Further, one end of gas transmission axle has the protrusion coaxial with free air diffuser, and the outside face of protrusion has protrusion outside thread, and the inside face of one end of pivot shaft has the negative thread suitable with protrusion outside thread.
Further, the wheel hub that is wound around compressed-air hose also comprises: axle head plug, and the opening of the free air diffuser that is positioned at protrusion is stretched in one end of axle head plug, and the other end of axle head plug is between the end and pivot shaft of protrusion.
Further, the axis of outlet passageway is mutually vertical with the axis of free air diffuser, and gas transmission axle has: circumferential groove in its end portion, be arranged at the periphery of gas transmission axle, and circumferential groove in its end portion is connected by outlet passageway with free air diffuser.
Further, outlet passageway is multiple, and multiple outlet passageways circumferentially distribute along free air diffuser.
Further, be wound around the wheel hub of compressed-air hose and also comprise: two dynamic seal rings, be relatively arranged on the both sides of circumferential groove in its end portion sheathed and be embedded in the outer peripheral face of gas transmission axle, the plane at each dynamic seal ring place is perpendicular to the axis of gas transmission axle; Dynamic seal axle sleeve, is sheathed on the outer peripheral face of gas transmission axle rotationally, and circumferential groove in its end portion is positioned at the inner side of dynamic seal axle sleeve, and dynamic seal axle sleeve has the dynamic seal sleeve thread hole being connected with circumferential groove in its end portion, and two dynamic seal rings are between dynamic seal axle sleeve and gas transmission axle; Outlet connector, is connected and is connected with circumferential groove in its end portion with dynamic seal sleeve thread hole.
Further, flange strut bar is multiple, and multiple flange strut bars circumferentially distribute around gas transmission axle and pivot shaft, and outlet connector is arranged at dodging in space of forming between any two adjacent flanges strut bars.
Further, the wheel hub that is wound around compressed-air hose also comprises: two flanged shaft bearings, and each flanged shaft bearing is fixedly connected on the inner side of each flange, and flange strut bar is connected between two flanged shaft bearings.
Further, each flanged shaft bearing comprises: the first mounting hole, for mounting flange strut bar; The second mounting hole, for installing gas transmission axle; The 3rd mounting hole, for installing pivot shaft; Wherein, the second mounting hole and the 3rd mounting hole coaxially arrange, and the first mounting hole is around the second mounting hole and the 3rd mounting hole setting, inside flange with on outward flange, all there is the fixed installation hole corresponding with the first mounting hole, the second mounting hole and the 3rd mounting hole; Wherein, the two ends of flange strut bar have outside thread, are arranged in the first mounting hole, and are fixed on described inside flange and outward flange.
Further, the periphery of dynamic seal axle sleeve is provided with dust boot, and outlet connector is arranged in dust boot and dynamic seal axle sleeve is connected with circumferential groove in its end portion, and dust boot extends and covers the junction between gas transmission axle and pivot shaft towards pivot shaft.
Further, on outward flange, be fixedly connected with to be useful on and rotate the handle of wheel hub that is wound around compressed-air hose, handle be can rotation balanced handle.
According to another aspect of the present utility model, a kind of long-pipe air respirator air feed car is also provided, comprise high-pressure air source, air-path control system, middle pressure connection pipe, hub unit, chassis assembly and middle pressure gas transmission long tube, wherein, air-path control system is used for controlling high-pressure air source, middle pressure connection pipe is connected with air-path control system, middle pressure gas transmission long tube is connected by hub unit with middle pressure connection pipe, middle pressure gas transmission long tube is wound on hub unit, high-pressure air source, air-path control system, middle pressure connection pipe is all connected with chassis assembly with hub unit, hub unit comprises the wheel hub of above-mentioned winding compressed-air hose.
Further, the wheel hub that is wound around compressed-air hose has: butt flange, be fixedly installed on gas transmission axle and between the inlet end of gas transmission axle and the inside flange of flange, and hub unit is connected with chassis assembly by butt flange.
Further, the inlet end of gas transmission axle is connected with middle pressure connection pipe by elbow traveling nut assembly.
Further, the wheel hub that is wound around compressed-air hose has outlet connector, and outlet connector is connected with middle pressure gas transmission long tube by elbow traveling nut assembly.
Further, chassis assembly has vehicle frame wheel hub adapter plate, wherein, has multiple tapped bore and be fixedly connected with the corresponding fixed via on vehicle frame wheel hub adapter plate on butt flange.
Application the technical solution of the utility model, provides a kind of wheel hub that is wound around compressed-air hose, and it comprises main shaft, two flanges and flange strut bar.Main shaft comprises gas transmission axle and the pivot shaft of coaxial connection, and gas transmission axle has free air diffuser, is provided with the outlet passageway that at least one is connected with free air diffuser on the sidewall of gas transmission axle.Two flanges are oppositely arranged on gas transmission axle and pivot shaft and can synchronously rotate with respect to gas transmission axle and pivot shaft.Flange strut bar is removably connected between two flanges, and the axis of flange strut bar and the axis of main shaft are parallel to each other.Because flange strut bar is removably connected between two flanges, manufacture craft is simple and making precision is high.The main shaft of wheel hub that is wound around compressed-air hose comprises gas transmission axle and the pivot shaft of coaxial connection, and gas transmission axle and pivot shaft setting are connected between two flanges, has solved the problem of rotating the easy wearing and tearing that discontinuity causes when main shaft is cantilever beam.Simple and the long service life of the wheel hub structure of winding compressed-air hose of the present utility model.
Brief description of the drawings
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the integrated model schematic diagram of the wheel hub of winding compressed-air hose of the present utility model;
Fig. 2 shows the section-drawing of the wheel hub of winding compressed-air hose of the present utility model;
Fig. 3 shows the integrated model schematic diagram of long-pipe air respirator air feed car of the present utility model; And
Fig. 4 shows the front view of long-pipe air respirator air feed car of the present utility model.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As depicted in figs. 1 and 2, the utility model provides a kind of wheel hub that is wound around compressed-air hose.
Particularly, be wound around the wheel hub of compressed-air hose and comprise main shaft, two flanges 20 and flange strut bar 30.Wherein, main shaft comprises gas transmission axle 11 and the pivot shaft 12 of coaxial connection.The inside of gas transmission axle 11, along having free air diffuser 111 on the axial direction of gas transmission axle 11, is provided with the outlet passageway 114 that at least one is connected with free air diffuser 111 on the sidewall of gas transmission axle 11.Two flanges 20 are oppositely arranged on gas transmission axle 11 and pivot shaft 12 and can synchronously rotate with respect to gas transmission axle 11 and pivot shaft 12, the two ends that are main shaft are all connected with flange 20, make main shaft two end supports and rotate, so when rotated, main shaft is stressed evenly, reduce the wearing and tearing of main shaft, solved when main shaft is cantilever beam in prior art and rotated the easily problem of wearing and tearing, extended the service life of the wheel hub of whole winding compressed-air hose.Flange strut bar 30 is removably connected between two flanges 20, the axis of flange strut bar 30 and the axis of main shaft are parallel to each other, this manufacture craft is simple and making precision is high, make each part make easily and install, thereby in use operating characteristic is better, rotate flexible gas circuit structure better tightness, wearing and tearing are few, and cost can reduce simultaneously.Therefore, the simple and long service life of the wheel hub structure of winding compressed-air hose of the present utility model.
In above-described embodiment, hub body installation is screw thread and is connected with spring collar, between two flanges 20, does not need to be welded to connect, and reduces steel use amount, increases gas transmission axle 11 positioning precision is installed.
As shown in Figure 1, between gas transmission axle 11 and pivot shaft 12, be provided with pad 70.
In above-described embodiment, flange 20 thickness are little, simple in structure, are easy to processing and fabricating, and cost is low, lightweight.
As depicted in figs. 1 and 2, two flanges 20 comprise inside flange 21 and outward flange 22.Gas transmission axle 11 and pivot shaft 12 are connected between inside flange 21 and outward flange 22, and inside flange 21 is connected with gas transmission axle 11, and outward flange 22 is connected with pivot shaft 12.Preferably, inside flange 21 is removably connected with gas transmission axle 11, and outward flange 22 is removably connected with pivot shaft 12.
As shown in Figure 1, one end of gas transmission axle 11 is connected with the threaded one end of pivot shaft 12.One end of gas transmission axle 11 is removably connected with one end of pivot shaft 12, is convenient to making processing and the Assembly &Disassembly of part.
Further, one end of gas transmission axle 11 has the protrusion 117 coaxial with free air diffuser 111, and the outside face of protrusion 117 has protrusion outside thread, and the inside face of one end of pivot shaft 12 has the negative thread suitable with protrusion outside thread.
As shown in Figure 1, the wheel hub of winding compressed-air hose also comprises axle head plug 100.The opening of the free air diffuser 111 that is positioned at protrusion 117 is stretched in one end of axle head plug 100, and the other end of axle head plug 100 is between the end and pivot shaft 12 of protrusion 117.
Preferably, as shown in Figure 1, the axis of outlet passageway 114 is mutually vertical with the axis of free air diffuser 111, gives vent to anger more unobstructed and processing and fabricating is simple.
Gas transmission axle 11 has circumferential groove in its end portion 115, and circumferential groove in its end portion 115 is arranged at the periphery of gas transmission axle 11, and circumferential groove in its end portion 115 is connected by outlet passageway 114 with free air diffuser 111.
Preferably, outlet passageway 114 is multiple, and multiple outlet passageways 114 circumferentially distribute along free air diffuser 111.
And then ground, as shown in Figure 1, the wheel hub that is wound around compressed-air hose also comprises two dynamic seal rings 116, dynamic seal axle sleeve 40 and outlet connector 60.Wherein, two dynamic seal rings 116 are relatively arranged on the both sides of circumferential groove in its end portion 115 sheathed and be embedded in the outer peripheral face of gas transmission axle 11, and the plane at each dynamic seal ring 116 places is perpendicular to the axis of gas transmission axle 11.Dynamic seal axle sleeve 40 is sheathed on the outer peripheral face of gas transmission axle 11 rotationally, circumferential groove in its end portion 115 is positioned at the inner side of dynamic seal axle sleeve 40, dynamic seal axle sleeve 40 has the dynamic seal sleeve thread hole being connected with circumferential groove in its end portion 115, and two dynamic seal rings 116 are between dynamic seal axle sleeve 40 and gas transmission axle 11.Outlet connector 60 is connected with dynamic seal sleeve thread hole and is connected with circumferential groove in its end portion 115.
Wheel hub gas circuit is to be sent to hermetically middle pressure long tube from the middle pressure air of pressure reducer outlet.The inlet end of gas transmission axle 11 connects the seal joint of pressing air in pressure reducer outlet, presses the seal joint of long tube during outlet passageway 114 connects.These two jointings of the utility model are identical bend pipe conical surface O type circle Hermetical connecting structure, increase commonality.Meanwhile, closer in the opening of axle head plug 100 apart from free air diffuser 111, shorten gas transmission axle 11 length, reduce difficulty of processing, improve product economy.Middle pressure pipe elbow hermetically-sealed construction, outlet connector 60 is connected by screw threads for fastening with traveling nut, and nut screwing clamping to nut inner bottom surface contacts and locks with elbow shaft shoulder boss.Joint and elbow are by conical surface seal.
In above-described embodiment, outlet connector 60 is connected with circumferential groove in its end portion 115, and circumferential groove in its end portion 115 is connected with outlet passageway 114, and therefore, when outlet passageway 114 is set to when multiple, outlet connector 60 is given vent to anger when rotated and can not be obstructed, and gives vent to anger more unobstructed.
Preferably, flange strut bar 30 is multiple, and flange strut bar 30 can be with nylon material or stainless steel, corrosion-resistant steel can adopt steel pole section bar not need processing, as long as the screw thread at symmetrical processing two ends, processing technology is simple and reliable, sound construction, easy operating and maintenance.Multiple flange strut bars 30 are circumferentially uniformly distributed around gas transmission axle 11 and pivot shaft 12, and outlet connector 60 is arranged at dodging in space of forming between any two adjacent flanges strut bars 30.Multiple flange strut bars 30, for flange 20 provides more support, have ensured the synchronous rotary of flange 20 with main shaft.Circumference uniform distribution flange strut bar 30 add main shaft in relative rotation connection mode make this device assembling simple and flexible, easy to operate being easy to that is wound around unwinding hoses realized, sound construction is reliable simultaneously.
As shown in Figure 1, the wheel hub that is wound around compressed-air hose also comprises two flanged shaft bearings 90, and each flanged shaft bearing 90 is fixedly connected on the inner side of each flange 20, and flange strut bar 30 is connected between two flanged shaft bearings 90.Structure as bearing seat is located in the central hole of flange 20, and there is suitable size gap in the hole of the fix shaft of flanged shaft bearing 90 and flange 20, and circumferential flange hole and Major Diam also have suitable size gap.Like this, can ensure the comformability of installation, simple for assembly process, the working accuracy of this part is also both economical.The two ends of main shaft are provided with flange 20, after wheel hub installation is fastening, become the rigid frame that width is very large, and the distortion under Action of Gravity Field is very little.Main shaft supports and rotates in both sides flanged shaft bearing 90 after connecting, and is two end supports structure, and axle distortion under deadweight is very little.The Action of Gravity Field of the middle pressure long tube of this wheel hub structure, on uniform steel pole, further acts on gas transmission axle 11 positions of two ends flanged shaft bearing 90 correspondences.
Referring to Fig. 1 and Fig. 2, gas transmission axle 11 is stainless steel material.Wheel hub has certain weight after pressing flexible pipe in being wound around, and need firmly be installed on vehicle frame, so that storage, transport and operation.The utility model is that wheel hub corrosion-resistant steel gas transmission axle 11 welds thick flange, is threaded and is fixed on vehicle frame, to ensure the rigidity of cantilever beam gas transmission axle 11 load-bearing with circumference uniform distribution.Product of the present utility model is ensureing that under the prerequisite of stiffness, obdurability, weight is more gently better.Owing to adopting the rock-steady structure of the minimizing rolled steel dosage such as gas transmission axle 11 split connections, product weight is reduced more greatly.Pivot shaft can be selected corrosion-resistant steel or copper material, also can select non-metallic material, engineering plastics POM, and preferably pivot shaft 12 is nylon material.Gas transmission axle 11 cantilevers are connected to end flanged shaft bearing 90 places by 12 of nylon pivot shafts, the effect of holding capacity is bearing rotation place endways only, in this part, there is no gas circuit structure, so this part selects non-metallic material to reduce costs, alleviate Integral hub weight, wheel hub center of gravity is moved forward, reduce structural distortion amount.
At length, each flanged shaft bearing 90 comprises the first mounting hole, the second mounting hole and the 3rd mounting hole.Wherein, the first mounting hole is used for installing gas transmission axle 11, the three mounting holes for mounting flange strut bar 30, the second mounting holes and is used for installing pivot shaft 12.The second mounting hole and the 3rd mounting hole coaxially arrange, and the first mounting hole is around the second mounting hole and the 3rd mounting hole setting.Inside flange 21 with on outward flange 22, all there is the fixed installation hole corresponding with the first mounting hole, the second mounting hole and the 3rd mounting hole.The two ends of flange strut bar 30 have outside thread, are arranged in the first mounting hole, and are fixed on inside flange 21 and outward flange 22.
As depicted in figs. 1 and 2, the periphery of dynamic seal axle sleeve 40 is provided with dust boot 50, outlet connector 60 is arranged in dust boot 50 and dynamic seal axle sleeve 40 is connected with circumferential groove in its end portion 115, and dust boot 50 extends and covers the junction between gas transmission axle 11 and pivot shaft 12 towards pivot shaft 12.The extending design of dust boot 50, makes the junction between gas transmission axle 11 and pivot shaft 12 also capped, makes dustproof better effects if.Dust boot 50 is not easy in use to make impurity to enter in hub sealing structure, the dynamic seal ring 116 that weares and teares for example, bring the granule impurity in environment into dynamic seal axle sleeve 40 in the process that can prevent from being wound around after the exhibition of middle pressure long tube in, has avoided the wearing and tearing of seal ring 116.The dust boot 50 of the protection movable sealing structure of the utility model design, thereby the service life of prolongation product.
Dynamic seal axle sleeve 40 selects copper material to make, and meets strength structure requirement, and good processability is simultaneously easy to ensure the requirement for quiet dynamic seal.Six copper square bars can directly utilize plane machining static seal groove, reduce processing technology, simultaneously can utilize six sides to fix as vice jaw surface when mounting structure, are easy to fitting operation.Dynamic seal axle sleeve 40 by screw threads for fastening, is O type circle sealing by dynamic seal ring 116 with outlet connector 60, and screw thread is screwed to metal covering close contact.Dust boot 50 is connecting element, and dynamic seal axle sleeve 40 rotates together with dust boot 50, O type circle and gas transmission axle 11 or dynamic seal axle sleeve 40 produce relative rotation and seal in press air.The inner face that the cell body of dynamic seal ring 116 is set is gap size, outer gland sealing face is free-running fit, reduce like this polished surface, reduce costs, meanwhile, guiding longer dimension, the cell body internal pressure of dynamic seal ring 116 is greater than external pressure, descend in working order dynamic seal ring 116 extruding laterally, if excessive clearance can cause dynamic seal ring 116 to extrude gross distortion, reduce service life.
And then ground, as depicted in figs. 1 and 2, the periphery of dynamic seal axle sleeve 40 is provided with dust boot 50, and dust boot 50 extends and covers the junction between gas transmission axle 11 and pivot shaft 12 towards pivot shaft 12.Sealing member on wheel hub gas channels is consumable accessory, especially dynamic seal, it is the critical parts that ensures whole positive-pressure air respirator normal function operation, if too much impurity enters in hermetically-sealed construction, O type circle can damage too early, and the environment of this equipment in the time of work is comparatively severe, probably there is above-mentioned situation.Therefore the dustproof construction at dynamic seal axle sleeve 40 places, under dust boot 50 overlap joints and joint six side's steps, hinders first impurity and enters wheel hub inside.Dustproof construction, for dustproof maze-type structure, is that dust enters wheel hub as smaller, can deposit herein, reduces the dust amount that enters hermetically-sealed construction place.In this winding, press the rotary seal place structure of the wheel hub of flexible pipe to be provided with protective cover 50, this dust boot 50 stops that with gas transmission axle 11, dynamic seal axle sleeve 40, dynamic seal ring 116 and the common composition of nylon spacer 70 dust enters the structure of dynamic seal chamber, thereby reduce the wearing and tearing of dynamic seal, improve product reliability simultaneously, reduce dust and enter the possibility in pipeline system, guarantee the clean of working medium.
Referring to Fig. 1 and Fig. 2, gas transmission axle 11 is with pivot shaft 12 by screw threads for fastening, and fastening surface compressive deformation, has certain predetermincd tension, in simultaneously in the axial center hole on gas transmission axle 11, press the application force of air extrusion part, this application force directly acts on the contact surface of pivot shaft 12 and strengthens predetermincd tension.Pad 70 (being preferably nylon spacer) can be isolated while relatively rotating metal piece for the abrasion of non-metal pivot shaft 12.The interior middle pressure air of induction opening 111 is in this sealed circle sealing, axle head plug 100 on this sealing surface slidably, before pressurising, axle head plug 100 may and the contact surface of pivot shaft 12 between gapped, after pressurising, this gap disappears first.
Preferably, on outward flange 22, be fixedly connected with to be useful on and rotate the handle 80 of wheel hub that is wound around compressed-air hose, handle 80 be can rotation balanced handle.
As shown in Figure 3 and Figure 4, also provide a kind of long-pipe air respirator air feed car.
Particularly, as shown in Figure 1, long-pipe air respirator air feed car comprises high-pressure air source 170, air-path control system 180, middle pressure connection pipe 150, hub unit 120, chassis assembly 130, middle pressure gas transmission long tube 160, wherein, air-path control system 180 is for controlling high-pressure air source 170, middle pressure connection pipe 150 is connected with air-path control system 180, middle pressure gas transmission long tube 160 is connected by hub unit 120 with middle pressure connection pipe 150, , middle pressure gas transmission long tube 160 is wound on hub unit 120, high-pressure air source 170, air-path control system 180, middle pressure connection pipe 150 is all connected with chassis assembly 130 with hub unit 120, hub unit 120 comprises the wheel hub of above-mentioned winding compressed-air hose.
As shown in Figure 2, in the present embodiment, the wheel hub that is wound around compressed-air hose has butt flange 113, and butt flange 113 is fixedly installed on gas transmission axle 11 and between the inlet end and inside flange 21 of gas transmission axle 11, and hub unit 120 is connected with chassis assembly 130 by butt flange 113.
As shown in Figure 2, the inlet end of gas transmission axle 11 is connected with middle pressure connection pipe 150 by elbow traveling nut assembly 140.
Preferably, the wheel hub that is wound around compressed-air hose has outlet connector 60, and outlet connector 60 is connected with middle pressure gas transmission long tube 160 by elbow traveling nut assembly 140.
As shown in Figure 4, chassis assembly 130 has vehicle frame wheel hub adapter plate 131, wherein, has multiple tapped bore and be fixedly connected with the corresponding fixed via on vehicle frame wheel hub adapter plate 131 on butt flange 113.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Because flange strut bar is removably connected between two flanges, manufacture craft is simple and making precision is high.The main shaft of wheel hub that is wound around compressed-air hose comprises gas transmission axle and the pivot shaft of coaxial connection, and gas transmission axle and pivot shaft setting are connected between two flanges, has solved the problem of rotating the easy wearing and tearing that discontinuity causes when main shaft is cantilever beam.Simple and the long service life of the wheel hub structure of winding compressed-air hose of the present utility model.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (18)
1. a wheel hub that is wound around compressed-air hose, is characterized in that, comprising:
Main shaft, comprise gas transmission axle (11) and the pivot shaft (12) of coaxial connection, described gas transmission axle (11) has free air diffuser (111), is provided with the outlet passageway (114) that at least one is connected with described free air diffuser (111) on the sidewall of described gas transmission axle (11);
Two flanges (20), are oppositely arranged on described gas transmission axle (11) and described pivot shaft (12) above and can synchronously rotate with respect to described gas transmission axle (11) and described pivot shaft (12);
Flange strut bar (30), is removably connected between two described flanges (20), and the axis of described flange strut bar (30) and the axis of described main shaft are parallel to each other.
2. the wheel hub of winding compressed-air hose according to claim 1, is characterized in that, two described flanges (20) comprising:
Inside flange (21);
Outward flange (22),
Described gas transmission axle (11) and described pivot shaft (12) are arranged between described inside flange (21) and outward flange (22), described inside flange (21) is connected with described gas transmission axle (11), and described outward flange (22) is connected with described pivot shaft (12).
3. the wheel hub of winding compressed-air hose according to claim 1, is characterized in that, one end of described gas transmission axle (11) is connected with the threaded one end of described pivot shaft (12).
4. the wheel hub of winding compressed-air hose according to claim 3, it is characterized in that, one end of described gas transmission axle (11) has the protrusion (117) coaxial with described free air diffuser (111), the outside face of described protrusion (117) has protrusion outside thread, and the inside face of one end of described pivot shaft (12) has the negative thread suitable with described protrusion outside thread.
5. the wheel hub of winding compressed-air hose according to claim 4, is characterized in that, the wheel hub of described winding compressed-air hose also comprises:
Axle head plug (100), the opening of the described free air diffuser (111) that is positioned at described protrusion (117) is stretched in one end of described axle head plug (100), and the other end of described axle head plug (100) is positioned between the end and described pivot shaft (12) of described protrusion (117).
6. the wheel hub of winding compressed-air hose according to claim 2, is characterized in that, the axis of described outlet passageway (114) is mutually vertical with the axis of described free air diffuser (111), and described gas transmission axle (11) has:
Circumferential groove in its end portion (115), is arranged at the periphery of described gas transmission axle (11), and described circumferential groove in its end portion (115) is connected by described outlet passageway (114) with described free air diffuser (111).
7. the wheel hub of winding compressed-air hose according to claim 6, is characterized in that,
Described outlet passageway (114) is multiple, and multiple described outlet passageways (114) circumferentially distribute along described free air diffuser (111).
8. according to the wheel hub of the winding compressed-air hose described in claim 6 or 7, it is characterized in that, the wheel hub of described winding compressed-air hose also comprises:
Two dynamic seal rings (116), be relatively arranged on the both sides of described circumferential groove in its end portion (115) sheathed and be embedded in the outer peripheral face of described gas transmission axle (11), the plane at each described dynamic seal ring (116) place is perpendicular to the axis of described gas transmission axle (11);
Dynamic seal axle sleeve (40), be sheathed on rotationally the outer peripheral face of described gas transmission axle (11), described circumferential groove in its end portion (115) is positioned at the inner side of described dynamic seal axle sleeve (40), described dynamic seal axle sleeve (40) has the dynamic seal sleeve thread hole being connected with described circumferential groove in its end portion (115), and two described dynamic seal rings (116) are positioned between described dynamic seal axle sleeve (40) and described gas transmission axle (11);
Outlet connector (60), is connected with described dynamic seal sleeve thread hole and is connected with described circumferential groove in its end portion (115).
9. the wheel hub of winding compressed-air hose according to claim 8, is characterized in that,
Described flange strut bar (30) is multiple, multiple described flange strut bars (30) circumferentially distribute around described gas transmission axle (11) and pivot shaft (12), and described outlet connector (60) is arranged at dodging in space of forming between any two adjacent described flange strut bars (30).
10. the wheel hub of winding compressed-air hose according to claim 9, is characterized in that, the wheel hub of described winding compressed-air hose also comprises:
Two flanged shaft bearings (90), each flanged shaft bearing (90) is fixedly connected on the inner side of each described flange (20), and described flange strut bar (30) is connected between two described flanged shaft bearings (90).
The wheel hub of 11. winding compressed-air hoses according to claim 10, is characterized in that, each described flanged shaft bearing (90) comprising:
The first mounting hole, for installing described flange strut bar (30);
The second mounting hole, for installing described gas transmission axle (11);
The 3rd mounting hole, for installing described pivot shaft (12);
Wherein, described the second mounting hole and described the 3rd mounting hole coaxially arrange, described the first mounting hole is around described the second mounting hole and described the 3rd mounting hole setting, described inside flange (21) with on described outward flange (22), all there is the fixed installation hole corresponding with described the first mounting hole, described the second mounting hole and described the 3rd mounting hole;
Wherein, the two ends of described flange strut bar (30) have outside thread, are arranged in described the first mounting hole, and are fixed on described inside flange (21) and outward flange (22).
The wheel hub of 12. winding compressed-air hoses according to claim 8, it is characterized in that, the periphery of described dynamic seal axle sleeve (40) is provided with dust boot (50), described outlet connector (60) is arranged in described dust boot (50) and described dynamic seal axle sleeve (40) is connected with described circumferential groove in its end portion (115), and described dust boot (50) extends and covers the junction between described gas transmission axle (11) and described pivot shaft (12) towards described pivot shaft (12).
The wheel hub of 13. winding compressed-air hoses according to claim 2, it is characterized in that, on described outward flange (22), be fixedly connected with and be useful on the handle (80) of wheel hub that rotates described winding compressed-air hose, described handle (80) be can rotation balanced handle.
14. 1 kinds of long-pipe air respirator air feed cars, it is characterized in that, comprise high-pressure air source (170), air-path control system (180), middle pressure connection pipe (150), hub unit (120), chassis assembly (130) and middle pressure gas transmission long tube (160), wherein, described air-path control system (180) is for controlling described high-pressure air source (170), described middle pressure connection pipe (150) is connected with described air-path control system (180), described middle pressure gas transmission long tube (160) is connected by described hub unit (120) with described middle pressure connection pipe (150), described middle pressure gas transmission long tube (160) is wound on described hub unit (120), described high-pressure air source (170), air-path control system (180), middle pressure connection pipe (150) is all connected with described chassis assembly (130) with hub unit (120), described hub unit (120) comprises the wheel hub of the winding compressed-air hose described in any one in claim 1 to 13.
15. long-pipe air respirator air feed cars according to claim 14, is characterized in that, the wheel hub of described winding compressed-air hose has:
Butt flange (113), be fixedly installed on described gas transmission axle (11) and go up and be positioned between the inlet end of described gas transmission axle (11) and the inside flange (21) of described flange (20), described hub unit (120) is connected with described chassis assembly (130) by described butt flange (113).
16. long-pipe air respirator air feed cars according to claim 14, is characterized in that, the inlet end of described gas transmission axle (11) is connected with described middle pressure connection pipe (150) by elbow traveling nut assembly (140).
17. long-pipe air respirator air feed cars according to claim 14, it is characterized in that, the wheel hub of described winding compressed-air hose has outlet connector (60), and described outlet connector (60) is connected with described middle pressure gas transmission long tube (160) by elbow traveling nut assembly (140).
18. long-pipe air respirator air feed cars according to claim 15, it is characterized in that, described chassis assembly (130) has vehicle frame wheel hub adapter plate (131), wherein, on described butt flange (113), having multiple tapped bore is fixedly connected with the corresponding fixed via on described vehicle frame wheel hub adapter plate (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416958.4U CN203998428U (en) | 2014-07-25 | 2014-07-25 | Be wound around wheel hub and the long-pipe air respirator air feed car of compressed-air hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416958.4U CN203998428U (en) | 2014-07-25 | 2014-07-25 | Be wound around wheel hub and the long-pipe air respirator air feed car of compressed-air hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203998428U true CN203998428U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420416958.4U Active CN203998428U (en) | 2014-07-25 | 2014-07-25 | Be wound around wheel hub and the long-pipe air respirator air feed car of compressed-air hose |
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| Country | Link |
|---|---|
| CN (1) | CN203998428U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015595A (en) * | 2019-04-18 | 2019-07-16 | 永康市海力实业有限公司 | The tube rolling device of one kind of multiple closed tube modes |
| CN111150944A (en) * | 2019-12-26 | 2020-05-15 | 江苏海拓科技有限公司 | Annular clamping type long tube respirator |
-
2014
- 2014-07-25 CN CN201420416958.4U patent/CN203998428U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015595A (en) * | 2019-04-18 | 2019-07-16 | 永康市海力实业有限公司 | The tube rolling device of one kind of multiple closed tube modes |
| CN111150944A (en) * | 2019-12-26 | 2020-05-15 | 江苏海拓科技有限公司 | Annular clamping type long tube respirator |
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