Tensioning rear frame structure in a kind of plate chain bucket elevator
【Technical field】
The present invention relates to the technical field of chain bucket elevator, tensioning rear frame structure in particularly a kind of plate chain bucket elevator
Technical field.
【Background technology】
Plate chapelet is a kind of most widely used vertical-lift equipment, during this machine is applied to, bulk and have mill to chisel
The vertical transport of the material (as lime stone, clinker, gypsum, lump coal) of property, below 250 DEG C, plate chain bucket carries temperature of charge
The machine of liter is by running part, driving means, upper unit, middle case, lower device form, and are provided with tensioning dress in lower device
Put.The tensioning apparatus of prior art is exposed in external environment mostly, and material is easily accessible in tensioning apparatus, causes the mill of equipment
Damage, have a strong impact on the service life of equipment, existing tensioning apparatus lacks frame structure and carries out limiting the inclination of tailing axle in addition, if
Standby interior tailing axle easily unidirectional tilt and lead to labyrinth phase mutual friction, reduce operating efficiency and the service life of equipment.
【Content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes tensioning rear frame in a kind of plate chain bucket elevator
Structure, can effectively prevent from, in tension structure in material entrance, being limited interior tensioning afterbody so that tailing axle is whole using framework
Body tilt adjustments, can effectively prevent tailing axle from tilting and leading to labyrinth seal and bearing block phase mutual friction.
For achieving the above object, the present invention proposes tensioning rear frame structure in a kind of plate chain bucket elevator, including cross bar,
Connecting rod, tailing axle, tail wheel, weighting distribution wheel, bearing block and ball bearing, the two ends of described cross bar are mounted on connecting rod, cross bar and two
Connecting rod forms frame structure, and the two ends of tailing axle are connected with connecting rod respectively, and described tailing axle is symmetrically installed with two tail wheels, tailing axle
On be symmetrically installed with two weighting distribution wheels, weighting distribution wheel be located at tail wheel side, the end of tailing axle is provided with ball bearing, ball bearing
It is installed in bearing block, bearing block side is provided with end cap, bearing block opposite side is provided with labyrinth seal, install in bearing block
There is outside framework oil seal, between outside framework oil seal and ball bearing, be provided with oil recess structure, described bearing block is installed with labyrinth seal cooperation
Side be provided with the first sealed groove and the second sealed groove, be provided with first between the first sealed groove and the second sealed groove close
Envelope bulge loop, labyrinth seal is provided with the second sealing bulge loop and the 3rd sealing bulge loop, the second sealing bulge loop and the 3rd sealing bulge loop
Between be provided with the 3rd sealed groove, described first sealed groove and the second sealing bulge loop cooperation are installed, the second sealed groove and the
Three sealing bulge loop cooperations are installed, and the 3rd sealed groove and the first sealing bulge loop cooperation are installed.
Preferably, described small end passes through bolt and clamp nut and cross bar cooperation installation, clamp nut and cross bar
Between be provided with packing ring, be provided with packing ring between connecting rod and cross bar, described connecting rod be provided with sliding sleeve.
Preferably, installing hole is offered on described end cap, in the hole is installed pump nozzle is installed, be provided with end cap and test the speed
Instrument.
Preferably, described bearing block bottom offers oiling passage, described oiling passage is connected with oil recess structure, axle
Two adjacent outside framework oil seals are installed in bearing.
Preferably, being provided with inner sleeve in described bearing block, outside framework oil seal is installed between inner sleeve and bearing block, described axle
The upper end of bearing is provided with connecting seat, and described connecting seat is connected with connecting rod by the first connecting bolt.
Preferably, the side of described ball bearing is provided with closure, closure passes through the second connecting bolt and tailing axle
End fixedly mounts, and described end cap is provided with mounting ring, and described mounting ring is installed with bearing block cooperation, and the inner side of mounting ring is provided with
Apical ring, described apical ring is installed with ball-bearing fit.
Beneficial effects of the present invention:Tail wheel and weighting distribution wheel are installed on the inside of equipment by the present invention, and the two ends of tailing axle are passed through
Bearing block and end cap are sealed, and fully seal and prevent afterbody housing leakage ash, and tailing axle both sides adopt ball bearing, substitute former wear-resisting
Nested structure, substitutes sliding friction by rolling friction, and the life-span can improve more than five times, and bearing block adopts labyrinth seal, skeleton oil
Envelope and oil recess structure, can control powdery and granular material to enter inside ball bearing completely, can effectively prevent material from entering
In interior tension structure, using framework, interior tensioning afterbody is limited so that the integral inclined adjustment of tailing axle, can effectively be prevented tailing axle
Tilt and lead to labyrinth seal and bearing block phase mutual friction.
The feature of the present invention and advantage will combine accompanying drawing by embodiment and be described in detail.
【Brief description】
Fig. 1 is the front view structure figure of tensioning rear frame structure in a kind of present invention plate chain bucket elevator;
Fig. 2 is A portion enlarged drawing in Fig. 1;
Fig. 3 is B portion enlarged drawing in Fig. 1;
Fig. 4 is C portion enlarged drawing in Fig. 3.
【Specific embodiment】
Refering to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, tensioning rear frame structure in a kind of present invention plate chain bucket elevator, including cross bar
1st, connecting rod 2, tailing axle 3, tail wheel 31, weighting distribution wheel 32, bearing block 4 and ball bearing 5, the two ends of described cross bar 1 are mounted on connecting rod
2, cross bar 1 and two connecting rods 2 form frame structures, and the two ends of tailing axle 3 are connected with connecting rod 2 respectively, and described tailing axle 3 is symmetrically pacified
Equipped with two tail wheels 31, tailing axle 3 is symmetrically installed with two weighting distribution wheels 32, weighting distribution wheel 32 is located at the side of tail wheel 31, tailing axle 3
End is provided with ball bearing 5, and ball bearing 5 is installed in bearing block 4, and bearing block 4 side is provided with end cap 6, and bearing block 4 is another
Side is provided with labyrinth seal 7, is provided with outside framework oil seal 41, is provided between outside framework oil seal 41 and ball bearing 5 in bearing block 4
Oil recess structure 42.
Bolt 21 and clamp nut 22 and cross bar 1 cooperation installation, clamp nut 22 and cross bar 1 are passed through in described connecting rod 2 upper end
Between be provided with packing ring 23, be provided with packing ring 23 between connecting rod 2 and cross bar 1, described connecting rod 2 be provided with sliding sleeve 24, on described end cap 6
Offer installing hole, in the hole is installed pump nozzle 61 is installed, tachymeter 62 is installed in end cap 6, described bearing block 4 bottom opens up
There is oiling passage 43, described oiling passage 43 is connected with oil recess structure 42, two adjacent skeleton oil are installed in bearing block 4
Envelope 41, is provided with inner sleeve 44, outside framework oil seal 41 is installed between inner sleeve 44 and bearing block 4, described bearing block in described bearing block 4
4 upper end is provided with connecting seat 45, and described connecting seat 45 is connected with connecting rod 2 by the first connecting bolt 46, described ball bearing 5
Side closure 8 is installed, closure 8 passes through the second connecting bolt and tailing axle 3 end and fixedly mounts, and described end cap 6 sets
There is mounting ring 63, described mounting ring 63 is installed with bearing block 4 cooperation, and the inner side of mounting ring 63 is provided with apical ring 64, described apical ring 64
Coordinate with ball bearing 5 and install, the side that described bearing block 4 is installed with labyrinth seal 7 cooperation is provided with the first sealed groove 47
With the second sealed groove 48, it is provided with the first sealing bulge loop 49 between the first sealed groove 47 and the second sealed groove 48, labyrinth is close
Seal 7 is provided with the second sealing bulge loop 71 and the 3rd sealing bulge loop 72, between the second sealing bulge loop 71 and the 3rd sealing bulge loop 72
It is provided with the 3rd sealed groove 73, described first sealed groove 47 and the second sealing bulge loop 71 cooperation are installed, the second sealed groove 48
Install with the 3rd sealing bulge loop 72 cooperation, the 3rd sealed groove 73 and the first sealing bulge loop 49 cooperation are installed.
The course of work of the present invention:
In a kind of present invention plate chain bucket elevator tensioning rear frame structure in the course of the work, by tail wheel 31 and weighting distribution wheel 32
It is installed on the inside of equipment, bearing block 4 is passed through at the two ends of tailing axle 3 and end cap 6 is sealed, fully seal and prevent afterbody housing from leaking
Ash, tailing axle 3 both sides adopt ball bearing 5, substitute former wear-resisting nested structure, substitute sliding friction by rolling friction, the life-span can improve
More than five times, bearing block 4 adopts labyrinth seal 7, outside framework oil seal 41 and oil recess structure 42, and bearing block 4 is joined with labyrinth seal 7
Close the side installed and be provided with the first sealed groove 47 and the second sealed groove 48, the first sealed groove 47 and the second sealed groove 48
Between be provided with the first sealing bulge loop 49, labyrinth seal 7 is provided with the second sealing bulge loop 71 and the 3rd sealing bulge loop 72, and second is close
It is provided with the 3rd sealed groove 73, the first sealed groove 47 and second seals bulge loop 71 between envelope bulge loop 71 and the 3rd sealing bulge loop 72
Cooperation is installed, and the second sealed groove 48 and the 3rd sealing bulge loop 72 coordinate installation, the 3rd sealed groove 73 and the first sealing bulge loop
49 cooperations are installed, and powdery and granular material can be controlled completely to enter inside ball bearing 5, can effectively prevent material from entering interior
In tension structure, using framework, interior tensioning afterbody is limited so that the integral inclined adjustment of tailing axle 3, can effectively be prevented tailing axle 3
Tilt and lead to labyrinth seal 7 and bearing block 4 phase mutual friction.
Above-described embodiment is the description of the invention, is not limitation of the invention, any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.