A kind of film trap material-stirring device that unloads
Technical field
The present invention relates to the sealing field, relate to more specifically the hermetically-sealed construction that unloads film trap material stirring axle and unload the film trap material-stirring device based on this hermetically-sealed construction exploitation.
Background technology
Titanium powder industry unloads the film trap material-stirring device as shown in Figure 1 in the prior art, comprise decelerator 101, shaft coupling 102, supporting bearing base 103, forward end seal structure 104, shaft 105, support roller 106, stock chest 107 and back-end sealing structure 108, stir by material in 105 pairs of grooves of reductor 101 direct connection shaft couplings 102 drive shafts, discharge through the relief hole of trench bottom through the material after stirring, the mass transport after will stirring by the fluorine alloy pump is to the stock chest of lower operation.The forward end seal structure 104 that this existing apparatus adopts and back-end sealing structure 108 are as shown in Figure 2, by the first gland 201, the second gland 202, seal receptacle 203 and combination oil seal 205 form, seal receptacle 203 be installed to the shaft two ends and and the flange 204 at stock chest two ends be connected and fixed with bolt, then combination oil seal 205 is packed in the middle of the seal receptacle 203, simultaneously with gland 201 and gland 202 indentation sealing seats, 203 two ends and carry out fastening to guarantee combination oil seal correct location in seal receptacle with bolt, as shown in Figure 2, adopt this hermetically-sealed construction so that in the shaft rotation process, combination oil seal by the front and back end sealed inside seals the material of taking out of in the shaft rotation process, but this sealing structure of shaft end itself is relatively poor to the sealing effectiveness of oil sealing, it is only by two gland seals, in the shaft rotation process, can't guarantee good sealing effectiveness, and owing to unload the span large (5750mm) of whole shaft in the film trap, the load that bearing is subjected to is large, in the process of stir rotating because in the effect of axle own wt and weight of material, so that shaft causes axle to produce flexural deformation too greatly because of span, shaft crooked in the process of rotating has produced larger swing, finally cause combination oil seal discontinuity in the hermetically-sealed construction of front and back end, local friction's power strengthens, combination oil seal produces wearing and tearing easily, cause the radial clearance of combination oil seal and shaft to become large, finally cause material to be spilt by the shaft two ends, reduced the yield of product, simultaneously because the restriction in place, the material that spills is difficult to reclaim, finally can only be discharged in the wastewater disposal basin, cause very large processing pressure to environmental protection, therefore the sealing effectiveness that unloads shaft front and back end hermetically-sealed construction in the film trap material-stirring device of the prior art is poor, causes the serious leakage of material in the whipping process.
Summary of the invention
The present invention is based on above-mentioned technical problem bearing arrangement and the front and back end hermetically-sealed construction thereof that unloads in the film trap material-stirring device carried out the design of novelty, the good sealing structure of shaft end of a kind of sealing effectiveness is proposed, and based on this propose a kind of can effectively prevent from stirring material from leakage unload the film trap material-stirring device.
It is as follows that the present invention solves the problems of the technologies described above the technical scheme of taking:
A kind of sealing structure of shaft end, comprise main shaft, clutch shaft bearing, the second bearing, bearing block, the first gland, seal receptacle, seal receptacle gland and sealing ring, described clutch shaft bearing and the second bearing keep at a certain distance away and are installed on the described main shaft, and with described main shaft integral installation in described bearing block, described the first gland is anchored on described bearing block one end, and and main shaft between be provided with sealing ring, described seal receptacle is anchored on the described bearing block other end, and and main shaft between be provided with sealing ring, described seal receptacle gland is anchored on described seal receptacle.
Further according to sealing structure of shaft end of the present invention, step before and after being provided with on the wherein said main shaft, described clutch shaft bearing and the second bearing are installed on the step of main shaft, described bearing block is cylindrical, and wall is provided with the bearing installation step within it, and the front/rear end of described bearing block is provided with some bolts hole.
Further according to sealing structure of shaft end of the present invention, wherein said the first gland is circular cap-like structure, be provided with the some bolts hole corresponding with bearing block front end face bolt hole in its peripheral outer lips, and be screwed into described bolt hole by bolt and described the first gland be anchored on the front end face of described bearing block, the middle part of described the first gland is provided with cylindrical hole or the cylinder pit that holds described main shaft, and is provided with the sealing ring of lip between its face of cylinder and described main shaft.
Further according to sealing structure of shaft end of the present invention, wherein said seal receptacle comprises cylindrical base and is formed at the flange of cylindrical base one end, be provided with the some bolts hole corresponding with the rear end face bolt hole of described bearing block on the described flange, and be screwed into described bolt hole by bolt and described seal receptacle be anchored on the rear end face of described bearing block, described main shaft passes described cylindrical base, and and described cylindrical base between be provided with described sealing ring, be provided with some bolts hole on the other end of described cylindrical base.
Further according to sealing structure of shaft end of the present invention, the inner cylinder face of wherein said cylindrical base is provided with groove and step, and the O RunddichtringO is installed in described groove, at described step several exoskeletal lip-shaped sealed rings is installed.
Further according to sealing structure of shaft end of the present invention, wherein said seal receptacle gland has cirque structure, and the face of cylinder is provided with O RunddichtringO mounting groove within it, be used between described main shaft and seal receptacle gland, the O RunddichtringO being set, the end face of described seal receptacle gland is provided with the some bolts hole corresponding with the bolt hole of described cylindrical base other end, and is screwed into described bolt hole and described seal receptacle gland is anchored on described seal receptacle other end by bolt.
Further according to sealing structure of shaft end of the present invention, be provided with tank filler sleeve on the wherein said bearing block, and jointly forming oil pocket by bearing block inwall, clutch shaft bearing and the second bearing inboard and spindle outer wall, lubricating oil is in tank filler sleeve injects described oil pocket and form oil sealing.
Further according to sealing structure of shaft end of the present invention, wherein also comprise a supporting seat, the lateral surface of described bearing block is supported on the described supporting seat.
The present invention further proposes a kind of film trap material-stirring device that unloads, comprise stock chest and stir main shaft, also comprise forward end seal structure, sliding cross coupling, support roller and back-end sealing structure, be supported in respectively near the two ends of described stirring main shaft on the support roller in the stock chest, and the two axial ends of described stirring main shaft is connected in main shaft in described forward end seal structure and the back-end sealing structure by described sliding cross coupling respectively, and described forward end seal structure and back-end sealing structure adopt the sealing structure of shaft end in the aforementioned techniques scheme.
Further according to the film trap material-stirring device that unloads of the present invention, the rear end main shaft consists of the shaft that unloads the film trap material-stirring device in front end main shaft in the wherein said forward end seal structure, stirring main shaft and the back-end sealing structure, described forward end seal structure is installed on the front end side wall of stock chest, described back-end sealing structure is installed on the rear end sidewall of stock chest, and described sliding cross coupling is arranged in the described stock chest.
Can reach following technique effect by the solution of the present invention:
1), the sealing structure of shaft end of innovative design of the present invention possesses extraordinary sealing effectiveness, can stop material fully from the leakage of axle head;
2), realized the zero leakage of material in the whipping process fully by the film trap material-stirring device that unloads of the present invention, promoted greatly the yield of product and alleviated the burden of environmental protection;
3), based on hermetically-sealed construction of the present invention and bearing arrangement unload the film trap material-stirring device, obtained very large prolongation its service life, greatly reduced simultaneously maintenance frequency, reduced the intensity of maintenance and the cost of maintenance, improved production efficiency;
4), sealing structure of shaft end of the present invention can be applicable to the field of sealing technology of other rolling bearings, but generalization is strong, market prospects are wide.
Description of drawings
Accompanying drawing 1 is the film trap material-stirring device structural representation that unloads of the prior art;
Accompanying drawing 2 unloads axle head sealed structural representation in the film trap material-stirring device for shown in the accompanying drawing 1;
Accompanying drawing 3 is the film trap material-stirring device structural representation that unloads of the present invention;
Accompanying drawing 4 is axle head sealed structural representation before unloading in the film trap material-stirring device shown in the accompanying drawing 3.
The implication of each Reference numeral is as follows in the accompanying drawing:
1, main shaft; 2, clutch shaft bearing; 3, the second bearing; 4, bearing block; 5, the first gland; 6, seal receptacle; 7, seal receptacle gland; 8, lip-shaped sealed ring; 9, O RunddichtringO; 10, supporting seat; 11, tank filler sleeve; 12, lower outage;
21, forward end seal structure; 22, sliding cross coupling; 23, stir main shaft; 24, support roller; 25, stock chest; 26, back-end sealing structure;
101, decelerator; 102, shaft coupling; 103, supporting bearing base; 104, forward end seal structure; 105, shaft; 106, support roller; 107, stock chest; 108, back-end sealing structure;
201, the first gland; 202, the second gland; 203, seal receptacle; 204, stock chest flange; 205, combination oil seal.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in detail, but the present invention is not limited to this.
As shown in Figure 3, the film trap material-stirring device that unloads of the present invention comprises forward end seal structure 21, sliding cross coupling 22, support roller 24, stock chest 25, stir main shaft 23 and back-end sealing structure 26, described forward end seal structure 21 is installed on the front end of stock chest 25, one end of the front end main shaft in the forward end seal structure 21 is connected in the decelerator that power is provided by shaft coupling, the main shaft other end is connected in sliding cross coupling 22, the other end of sliding cross coupling 22 is connected in an end of described stirring main shaft 23, the other end of described stirring main shaft 23 connects another sliding cross coupling 22, this another sliding cross coupling 22 is connected in the main shaft in the back-end sealing structure 26, described back-end sealing structure 26 is installed on the rear end of stock chest 25, and the two ends of described stirring main shaft 23 are supported in the stock chest 25 by support roller 24.With described unload the film trap material-stirring device and install after, as shown in Figure 3, during operation decelerator is connected with front end main shaft in the forward end seal structure by shaft coupling, under the drive of decelerator, torsion is passed to stirring main shaft 23 to forward end seal structure 21 and back-end sealing structure 26 is rotated stably with realization, in operation process, unload in the film trap effect that main shaft is subject to material and self gravitation in the groove of stirring, owing in technical scheme of the present invention, original shaft has been divided into three sections, be respectively the front end main shaft in the forward end seal structure, stirred rear end main shaft in main shaft 23 and the back-end sealing structure in the groove of stock chest 25 inner support rollers 24 supports, and the stirring main shaft 23 in the described groove is in transmission connection with front end main shaft and rear end main shaft respectively by sliding cross coupling 22, reduced like this shaft in the stock chest across length, so that the power major part on the shaft has dropped on two groups of support rollers 24 in the groove, also greatly reduced simultaneously the stressed of front end main shaft and rear end main shaft, the flexural deformation of having avoided shaft to cause because of the impact of material in the groove and self gravitation in rotation process fully, the sealing effectiveness that has guaranteed the front and back end hermetically-sealed construction is not subjected to the impact of shaft running.
The employing sealing structure of shaft end as shown in Figure 4 of further front and back end of the present invention hermetically-sealed construction novelty, the basic composition of described forward end seal structure and back-end sealing structure, sealing principle and installation steps are in full accord, difference only is because of back-end sealing structure connection reducer not, therefore wherein rear end main shaft and gland and forward end seal structure slightly different, the length of rear end main shaft is short than the front end main shaft as shown in Figure 3, do not stretch out corresponding gland (being corresponding gland not perforate of middle part), but this and boths' hermetically-sealed construction principle is irrelevant, therefore front and back end of the present invention hermetically-sealed construction has identical sealing structure of shaft end, below as an example of the front end hermetically-sealed construction example the explanation sealing structure of shaft end that the present invention was taked.
As shown in Figure 4, the forward end seal structure be used to unloading the film trap material-stirring device of the present invention comprises front end main shaft 1, clutch shaft bearing 2, the second bearing 3, bearing block 4, the first gland 5, seal receptacle 6, seal receptacle gland 7, lip-shaped sealed ring 8, O sealing ring 9 and supporting seat 10.Wherein said main shaft 1 is connected in stirring main shaft 23 in the stock chest as power transmission shaft by sliding cross coupling 22; Step before and after being provided with on the described main shaft 1, after described clutch shaft bearing 2 and the second bearing 3 are installed on the front and back step of main shaft 1 and main shaft 1 together be installed in the columnar bearing block 4, described bearing block 4 internal faces are provided with the step that described bearing is installed, the front/rear end of described bearing block 4 is provided with some bolts hole, and the cylinder lateral surface of described bearing block 4 is supported on the described supporting seat 10.Described the first gland 5 integral body are circular cap-like structure, be provided with the some bolts hole corresponding with the front end face bolt hole of bearing block 4 in its peripheral outer lips, the middle part is provided with manhole and passes for main shaft, on the cylinder wall of through hole to the inside (towards the bearing installation direction) be provided with step, after two exoskeletal lip-shaped sealed rings 8 are installed on described step, described the first gland 5 overlapped main shaft 1 and be installed in the front end face of described bearing block 4, and make bolt hole on the first gland 5 peripheral outer lips with after the bolt hole of bearing block front end face is aimed at, bolt with 12 M16 is anchored on bearing block 4 front ends with the first gland 5, in order to covering the clutch shaft bearing of bearing block inside, and form sealing so that be installed on that the lip-shaped sealed ring 8 of gland 5 inwalls is close to main shaft 1.Described seal receptacle 6 comprises cylindrical base and is formed at the flange of cylindrical base one end, this flange can be stretched out by the cylindrical base end and form, be provided with the some bolts hole corresponding with the rear end face bolt hole of bearing block 4 at described flange, be provided with some screws on the other end of described cylindrical base, described cylindrical base inner cylinder face is provided with mounting groove and the step of O RunddichtringO 9, described step is to the arranged outside away from bearing, a described O RunddichtringO 9 is installed in the mounting groove of cylindrical base inwall, and after five exoskeletal lip-shaped sealed rings being installed on the step of described cylindrical base inwall, described seal receptacle 6 integral body were overlapped main shaft 1 and be installed in the rear end face of described bearing block 4, and make bolt hole on its flange with after the bolt hole on the bearing block rear end face is aimed at, bolt with 8 M16 is anchored on bearing block 4 rear ends with seal receptacle 6, in order to covering the second bearing of bearing block inside, and so that be installed on the O RunddichtringO 9 of seal receptacle 6 inwalls and lip-shaped sealed ring 8 is close to main shaft 1 and form sealing.Described seal receptacle gland 7 has cirque structure, and the face of cylinder is provided with O RunddichtringO 9 mounting grooves within it, and end face is provided with some bolts hole.After during assembling one O RunddichtringO 9 being installed to the mounting groove of seal receptacle gland 7 inwalls, described seal receptacle gland 7 integral body were overlapped main shaft 1 and be installed in the rear end face of described seal receptacle 6, and after making its bolt hole and the bolt hole on the seal receptacle 6 cylindrical base end faces being aimed at, seal receptacle gland 7 is anchored on the rear end of seal receptacle 6 with the bolt of 8 M10, in order to covering the lip-shaped sealed ring of seal receptacle 6 inside, and form sealing so that be installed on that the O RunddichtringO 9 of seal receptacle gland 7 inwalls is close to main shaft 1.Whole forward end seal structure is supported in stock chest 25 outsides by bracing frame 10, and seal receptacle 6 is wherein embedded the sidewall that is installed on stock chest, and main shaft 1 rear end wherein is connected in the stirring main shaft by sliding cross coupling 22.
Further the bearing block in described forward end seal structure is provided with tank filler sleeve 11 and lower outage 12, aforesaid in described forward end seal structure, by the bearing block inwall, clutch shaft bearing and the second bearing inboard and spindle outer wall form oil pocket jointly, lubricating oil is injected in the oil pocket through tank filler sleeve 11, close lower outage, after filling it up with the oil pocket cavity, lubricating oil forms oil sealing, and the pressure that makes inside cavity is all the time greater than the pressure that unloads the interior material of film trap (open type is unloaded film trap), to guarantee that the material that unloads in the film trap can't be pressed into each sealing ring, simultaneously because at seal receptacle 6 and gland 7 interior two groups of O RunddichtringOs and five exoskeletal lip-shaped sealed rings of being equipped with altogether thereof, under the elastic pressure effect of O RunddichtringO and lip-shaped sealed ring, seal receptacle fits tightly with main shaft 1 all the time, greatly reduced material and the diameter of axle to contact area, improved greatly the sealing effectiveness of axle head.
Described back-end sealing structure is all identical with the most of structure member of forward end seal structure, difference only is, the back-end sealing structure is connection reducer not, therefore wherein the length of rear end main shaft is short than the front end main shaft, corresponding the first gland middle part only arranges the cylinder pit that holds main shaft, as shown in Figure 3, in addition both structures are identical, and both have identical sealing principle.
Unloading piece fluted shaft end hermetically-sealed construction of the present invention can reach following technique effect at least: 1. mainly by clutch shaft bearing 2(22316) and the second bearing 3(22316) shaft power in use born, power in avoiding stirring acts directly in the airtight and watertight padding, so that the radial clearance of hermetically-sealed construction is more even, can play better sealing function.2. adopt a plurality of lip-shaped sealed rings and O RunddichtringO that the material of taking out of in the whipping process is sealed, improved sealing effectiveness; 3. pass through the tank filler sleeve apply oil in oil pocket, utilize the interior lubricating oil of oil pocket each seal and bearing to be lubricated to guarantee the service life of seal and bearing, simultaneously because lubricating oil is full of whole oil pocket, so that internal pressure and cell body external pressure kept in balance, thereby strengthened to a certain extent sealing function.
That adopts this front and back end hermetically-sealed construction unloads the film trap material-stirring device, again in conjunction with the shaft of subsection setup, namely this shaft that unloads in the film trap material-stirring device is divided into three sections as previously mentioned, the front end main shaft of leading portion hermetically-sealed construction, stir main shaft, rear end main shaft in the back-end sealing structure, stir main shaft and carry out connection for transmission by sliding cross coupling and front and back end main shaft, so that this film trap material-stirring device that unloads of the present invention has better sealing effectiveness, can stop the leakage of material in whipping process fully, when under the drive of front end main shaft 1 at reductor of front end hermetically-sealed construction with 50 turn/when the rotating speed of per minute drives the stirring main shaft that unloads in the film trap and turns round, the power major part that the stirring main shaft is subject in operation process has dropped on and has stirred on two groups of support rollers of main shaft in the stock chest, greatly reduced the stressed of front end main shaft and rear end main shaft, and the shaft of subsection setup flexural oscillations can not occur in rotation process, avoided its impact on the wearing and tearing of the oil sealing in the hermetically-sealed construction of front and back end and sealing effectiveness, simultaneously owing to the lubrication of internal lubrication oil to each sealing ring, in the situation of stressed minimizing, obtain very large prolongation the service life of sealing structure of shaft end, further guaranteed the sealing property that sealing structure of shaft end is good.Moreover, because material is the material of white, just in case producing, sealing structure of shaft end leaks, to cause the lubricating oil in it to bleach or muddiness, so that in regular maintenance and maintenance, only need to check the sealing condition of judging sealing structure of shaft end that the quality of lubricating oil just can be very fast by lower outage, conveniently carry out daily maintenance.
By test, the sealing effectiveness of front and back end of the present invention hermetically-sealed construction is fairly obvious, describedly unloads the zero leakage that the film trap material-stirring device can be completely achieved material; Simultaneously prolonged service time greatly, by original per tour maintenance once, rise to maintenance in every 8-10 month once, greatly reduce intensity and the cost of maintenance, promoted simultaneously the yield of product and alleviated the burden of environmental protection.
Below only be that preferred embodiment of the present invention is described; technical scheme of the present invention is not limited to this; the any known distortion that those skilled in the art do on the basis of major technique of the present invention design all belongs to the claimed technology category of the present invention, and the concrete protection domain of the present invention is as the criterion with the record of claims.