CN209688044U - Side stir gear reduction unit - Google Patents

Abstract

The utility model relates to a kind of side stir gear reduction units, including speed reducer ontology, the speed reducer ontology is equipped with motor, shaft assembly, upper gear box and lower tooth roller box, shaft assembly is mounted on upper gear box, the shaft assembly includes shaft coupling, the first bevel gear, the second bevel gear and umbrella wheel axis, installs shaft coupling between the output shaft and umbrella wheel axis of motor；First bevel gear is installed on umbrella wheel axis, output main shaft is installed in lower tooth roller box, inner groovy is provided on output main shaft, second bevel gear is installed in the inner groovy of output main shaft, if being equipped with dry bearing and Oil sealing assembly on output main shaft, fixed hub is installed, Oil sealing assembly is installed on output main shaft and is located at bearing neighbour side, and Oil sealing assembly wherein one is placed on lower gear case inner face between bearing and the second bevel gear.It is few with transmission link by the design, and mechanical efficiency is high, compact-sized, runs smoothly, occupied area is small, and treating capacity is big, and low energy consumption, low noise.

Description

Side stir gear reduction unit

Technical field

The utility model patent is related to blender, especially side stir gear reduction unit.

Background technique

Blender on current blender mainly using axial flow type, be with propeller agitator it is more, push type stirs Mixing device is most typical axis manifold blender, and lifting rate is high, low sheraing performance, fluid be from the blade axially into blender, Then again from a kind of flow regime axially flowed out.

The transmission link of current this structure is more, generally Multi-stage transmission, makes also bigger in its volume, and it is empty to compare occupancy Between, while as service life increases, it may appear that mechanical sealing performance is poor, situations such as oil leak, leads to machine internal lubrication not It is enough, the friction of mechanical part is increased, noise can be generated, reduce service life.

Utility model content

In order to overcome the drawbacks of the prior art, the utility model provides side stir gear reduction unit.

The technical scheme adopted by the utility model is

A kind of side stir gear reduction unit, including speed reducer ontology, the speed reducer ontology are equipped with motor, axis group Component, upper gear box and lower tooth roller box, shaft assembly are mounted on upper gear box, it is characterised in that: the shaft assembly includes Shaft coupling, the first bevel gear, the second bevel gear and umbrella wheel axis install shaft coupling between the output shaft and umbrella wheel axis of motor；Umbrella First bevel gear is installed on wheel shaft, output main shaft is installed in lower tooth roller box, exports and is provided with inner groovy on main shaft, described second Bevel gear is installed in the inner groovy of output main shaft, if being equipped with dry bearing and Oil sealing assembly on output main shaft, bearing with Fixed hub is installed, Oil sealing assembly is installed on output main shaft and is located at bearing neighbour side, Oil sealing assembly between the second bevel gear Wherein one it is placed on lower gear case inner face.

Preferably, the output main shaft is equipped with tensioner.

Preferably, Oil sealing assembly includes annular frame, and annular frame has flex area and lumbar region, and flex area and lumbar region are formed There is interior recessed area, lumbar region has sealing surface and interior concave ring groove, and elastic ring is equipped in interior concave ring groove, and sealing surface has and output main shaft The inconsistent dust-proof surface of circumferential surface and after elastic ring squeezes contradict to export main shaft circumferential surface sealing resistance surface, dust-proof surface with it is close It is formed with recessed area between envelope resistance surface, seals the length of resistance surface greater than the length with dust-proof surface.

Preferably, the sealing resistance surface and interior concave ring groove are located on same vertical line.

Preferably, there are two Oil sealing assembly is set, the rear and front end for being separately mounted to output main shaft forms double sealing structure.

Preferably, the umbrella wheel axis is equipped with bearing and shaft seal assembly.

Preferably, the shaft seal assembly has identical structure with Oil sealing assembly.

Preferably, output main shaft is equipped with bowl-shape axle sleeve.

The utility model beneficial aspects are as follows:

The utility model uses umbrella wheel transmission mechanism, mainly passes through shaft coupling and matches with umbrella wheel axis, so that the two On same axis, and it is directly assembled with bevel gear on umbrella wheel axis, reduces current Multi-stage transmission mechanism, be also additionally arranged oil Sealing assembly, so that this product has the following characteristics that

1, it is few with transmission link, and mechanical efficiency is high, compact-sized, runs smoothly.

2, occupied area is small, and treating capacity is big, and low energy consumption, low noise.

3, installation is simple and operating process is simple.

4, the mechanical sealing performance carried out is stablized, and no replacement is required.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the overall structure cross-sectional view of the utility model.

Fig. 2 is the inside overall structure figure of the utility model.

Fig. 3 is the partial enlarged view in figure at A.

Fig. 4 is the structural schematic diagram of shaft seal assembly.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

To keep the purposes, technical schemes and advantages of the utility model implementation clearer, below in conjunction with the utility model Attached drawing in embodiment, is further described in more detail the technical scheme in the embodiment of the utility model.

As shown in Figures 1 to 4, present embodiment discloses side stir gear reduction unit, including speed reducer ontology 1, subtract Fast machine ontology can be cycloidal planetary gear speed reducer, and the speed reducer ontology is equipped with motor 5, shaft assembly, 11 and of upper gear box Lower tooth roller box 12, shaft assembly is mounted on inside upper gear box, and the shaft assembly includes shaft coupling 42, the first bevel gear 17, the second bevel gear 43 and umbrella wheel axis 44, install shaft coupling between the output shaft and umbrella wheel axis of motor, shaft coupling and axis are installed Mode has key connecting and keyless, is the prior art, is not described；The output shaft and umbrella wheel axis of motor pass through at connector In on same axial line, smooth running, overload capacity is strong；First bevel gear 17, lower tooth roller box 12 are installed on umbrella wheel axis 44 In output main shaft 14 is installed, export and be provided with inner groovy 13 on main shaft 14, second bevel gear 43 is installed on output main shaft In inner groovy 13, if being equipped with dry bearing 7 and Oil sealing assembly on output main shaft, thrust force aligning Roller Shaft is can be used in bearing It holds, improves the stability of operation, fixed hub 9 is installed between bearing 7 and the second bevel gear, fixed hub one end is contradicted in axis 7 outer edges are held, the other end and Oil sealing assembly 4 are inconsistent, and Oil sealing assembly 4 is installed on output main shaft and is located at the adjacent side of bearing 7, oil Sealing assembly 4 wherein one is placed on lower gear case inner face.

End cap 3 and flange seat 2 are installed at 12 both ends of lower tooth roller box, end cap 3 prevents dust, dirt intrusion movement portion Position exports and is equipped with tensioner 6 on main shaft, and tensioner 6 is at least arranged one, and setting is exporting at rear-end of spindle, and through holding Lid is connected through a screw thread with lower tooth roller box 12 and is sealed in lower tooth roller box 12, by increasing tensioner 6, improves the stabilization of operation Property, speed reducer ontology 1 is connected with agitating shaft 5(and is not shown in the figure), output main shaft is mainly used to transmit the fortune between two alternating axis Dynamic and power；Agitating shaft is connected with output main shaft；The other end of agitating shaft 5 uses screw location and installation axial flow type agitating valve, With enough strength and stiffness, and stability with higher, the axial flow type agitating valve axis properties of flow is good, less energy-consuming, Simple installation is manufactured, and under same operation processes result, Axial-flow impeller is more bigger than conventional diameter, but its power is only There is the 70%~80% of traditional blade.Axial flow type agitating valve than it is traditional have better axis properties of flow, higher flow efficiency and Lower torque requirement can replace the high helical-ribbon type impeller of price, can obtain good effect.

Umbrella wheel axis 44 is the take-off (propeller) shaft of the speed reducer 1, and the umbrella wheel axis 44 is equipped with the first bevel gear 17 of cooperation The flank profil of rotation, the two are also possible to be integrally machined molding, and umbrella wheel axis 44 is mutually contradicted with bevel gear；And 17, the first bevel gear It is meshed in the cavity of upper gear box and with the second bevel gear 43, the second bevel gear 43 is mounted on output main shaft 14；

With reference to Fig. 3, Oil sealing assembly includes annular frame 20, and annular frame 20 has flex area 21 and lumbar region 22, flex area 21 and lumbar region 22 be formed with interior recessed area 23, lumbar region 22 has sealing surface and interior concave ring groove 24, is equipped with elasticity in interior concave ring groove 24 Circle 27, sealing surface have the dust-proof surface 25 inconsistent with output main shaft circumferential surface and are contradicted after elastic ring squeezes to output main shaft The sealing resistance surface 26 of circumferential surface is formed with recessed area between dust-proof surface 25 and sealing resistance surface 26, and the length for sealing resistance surface is greater than With the length of dust-proof surface, when covering when exporting on main shaft, sealing resistance surface 26 can be pressurized, and inside 23 direction of recessed area is mobile, and formation is tight It is affixed on output main shaft circumferential surface, the diameter of the dust-proof surface of this programme and the diameter of sealing resistance surface 26 are outer no more than output main shaft Diameter can guarantee to fit closely in this way, though during operation can biased, but be provided with elastic ring 27 and the sealing is supported Contacting surface and interior concave ring groove are located on same vertical line, can accomplish zero leakage, accomplish real sealing effect.This programme is exporting There are two Oil sealing assembly on main shaft is set, the rear and front end for being separately mounted to output main shaft forms double sealing structure.

It is coupled axle sleeve 18 in upper gear box 11, the umbrella wheel axle position is in installation axle sleeve, while in the umbrella Wheel shaft is equipped with bearing 15 and shaft seal assembly 10, and self-aligning thrust roller bearing, the sealing group can also be used in bearing Part has identical structure with Oil sealing assembly, can refer to Fig. 4.

The Oil sealing assembly and Oil sealing assembly of upper gear box 11 and lower tooth roller box, by the component for needing to lubricate in transmission parts with It contributes component isolation, is unlikely to allow oil seepage, lubricating oil is mainly grease lubrication.

Utility model works principle is described further: the output shaft 41 and shaft coupling 42 of motor constitute input shaft, work To make input shaft under state and drives umbrella wheel axis 44, umbrella wheel axis 44 drives the first bevel gear 17 to be driven again, realizes the transmission of power, Due to engaging with the second bevel gear, the second bevel gear is fixedly connected first bevel gear 17, and output main shaft can be driven to carry out Rotation, i.e. agitating shaft on output main shaft also rotate with it, and stable drive is noiseless, since output main shaft is continuous uninterrupted Helical tooth (i.e. the second bevel gear), it be when being engaged with worm-gear toothing (i.e. the first umbrella wheel tooth) continuously, teeth cooperation does not have There are the process for entering and exiting engagement, therefore stable working, impact, vibration, noise are all smaller；The lubrication used in the design Form is splash system lubrication, simple and reliable for structure, cooling effect, therefore the addition of seal assembly can guarantee oil sealing.

Mechanical seal is mainly used in the design, incurs mechanical seal failure to prevent material from entering sealing, because And mechanical seal upper end go here and there again level-one auxiliary seal installation；Two sets of bearings are designed in two-stage sealed lower portion, the purpose is to be limited The axial float of axis processed and circular runout, axle sleeve 18 combine bearing 15 and 10 mode of shaft seal assembly to install, it is ensured that reach machine The technical conditions of tool sealing operating further ensure that mechanical seal for the ease of mechanical seal disassembly, device, maintenance, maintenance Reliability is equipped with bowl-shape axle sleeve 8 in output main shaft, and bowl-shape axle sleeve and bearing 15 contradict.

Every technical staff's notice: although the utility model is described according to above-mentioned specific embodiment, this The utility model thought of utility model is not limited to that utility model, and any repacking with the utility model thought all will It is included in this patent scope of patent protection.

Claims (8)

1. side stir gear reduction unit, including speed reducer ontology, the speed reducer ontology be equipped with motor, shaft assembly, Upper gear box and lower tooth roller box, shaft assembly are mounted on upper gear box, it is characterised in that: the shaft assembly includes shaft coupling Device, the first bevel gear, the second bevel gear and umbrella wheel axis install shaft coupling between the output shaft and umbrella wheel axis of motor；Umbrella wheel axis On the first bevel gear is installed, output main shaft is installed in lower tooth roller box, exports and is provided with inner groovy, second umbrella tooth on main shaft Wheel is installed in the inner groovy of output main shaft, if being equipped with dry bearing and Oil sealing assembly, bearing and second on output main shaft Fixed hub is installed, Oil sealing assembly is installed on output main shaft and is located at bearing neighbour side, and Oil sealing assembly is wherein between bevel gear One is placed on lower gear case inner face.

2. side stir gear reduction unit according to claim 1, it is characterised in that: the output main shaft is equipped with Tensioner.

3. side stir gear reduction unit according to claim 1 or 2, it is characterised in that: Oil sealing assembly includes annular Frame body, annular frame have flex area and lumbar region, and flex area and lumbar region are formed with interior recessed area, and lumbar region has sealing surface and indent Annular groove, elastic ring is equipped in interior concave ring groove, and sealing surface has with the output inconsistent dust-proof surface of main shaft circumferential surface and through elastic ring It is contradicted after extruding to the sealing resistance surface for exporting main shaft circumferential surface, is formed with recessed area between dust-proof surface and sealing resistance surface, sealing is supported The length of contacting surface is greater than the length with dust-proof surface.

4. side stir gear reduction unit according to claim 3, it is characterised in that: the sealing resistance surface with it is interior Concave ring groove is located on same vertical line.

5. side stir gear reduction unit according to claim 4, it is characterised in that: there are two Oil sealing assembly is set, point The rear and front end for not being mounted on output main shaft forms double sealing structure.

6. side stir gear reduction unit according to claim 3, it is characterised in that: the umbrella wheel axis is equipped with axis It holds and shaft seal assembly.

7. side stir gear reduction unit according to claim 6, it is characterised in that: the shaft seal assembly and oil Sealing assembly has identical structure.

8. side stir gear reduction unit according to claim 7, it is characterised in that: output main shaft is equipped with bowl-shape axis Set.