CN206144987U - Bush - Google Patents

Abstract

The utility model discloses a bush. This bush includes: this somatic part of annular, the lower extreme of this somatic part of annular is provided with the flanging, the movable vane wheel meets contact pad, the movable vane wheel connects contact pad to be the annular and to set up the upper end of this somatic part of annular, the movable vane wheel connect contact pad with the juncture of this somatic part of annular is provided with additional strengthening. According to the utility model discloses bush, this bush have alleviateed self weight, simultaneously through setting up additional strengthening, have improved bush's the deformation and the fracture condition greatly.

Description

Bushing

Technical field

This utility model is related to appliance field, in particular to a kind of bushing.

Background technology

The bushing that traditional cylindrical sleeve and pad are united two into one is movable vane wheel vacantly in blower fan cavity there is provided filling And positioning so as to discord determines impeller contact, determines impeller so as to ensure to rub in movable vane wheel high-speed rotation.

Existing bushing material is metal, and greatly, material cost is high for weight.Additionally, the production and processing mode of existing bushing For powder metallurgy mode or metal Vehicle Processing mode, the processability of both production and processing modes is all bad, it is impossible to realize bushing Quick production in enormous quantities, and processing cost is higher, dimensional accuracy and form and position tolerance level is poor and every batch of product between have ripple It is dynamic, cause product quality unstable.

Meanwhile, existing bushing is eventually pushed down and is locked by nut with movable vane wheel together, therefore Jing is often because be subject to beat The dual function of the impulsive force and nut lock clamp force of nut action itself, causes deformation and the cracking of bushing itself.

Utility model content

This utility model is intended at least solve one of above-mentioned technical problem of the prior art to a certain extent.For this purpose, The purpose of this utility model is to propose a kind of bushing, and the bushing alleviates own wt, while by improving concrete structure, greatly Improve greatly deformation and the cracking situation of bushing.

Included according to the bushing of this utility model embodiment：Annular body portion, the lower end of the annular body portion are provided with Flanging；Movable vane wheel contact disc, the movable vane wheel contact disc are annular and are arranged on the upper end of the annular body portion, described dynamic Impeller contact disc is provided with reinforcement structure with the intersection of the annular body portion.

According to the bushing of this utility model embodiment, by arranging flanging and reinforcement structure so that the intensity of bushing is obtained With very big lifting, bushing in use, is less prone to the phenomenon of strain cracking.

In addition, can also have following additional technical characteristic according to the bushing of this utility model above-described embodiment：

According to some embodiments of the present utility model, the reinforcement structure is reinforcement.

According to some embodiments of the present utility model, the reinforcement is multiple and with regard to the center of the annular body portion Axisymmetrical is distributed.

According to some embodiments of the present utility model, multiple reinforcements are four, and two reinforcements of arbitrary neighborhood Muscle is spaced 90 °.

According to some embodiments of the present utility model, the reinforcement is concave bar.

According to some embodiments of the present utility model, the bottom surface of the concave bar is inclined-plane.

According to some embodiments of the present utility model, the angle and the inclined-plane of the inclined-plane and the annular body portion It is equal with the angle of the movable vane wheel contact disc.

According to some embodiments of the present utility model, the radial dimension of the movable vane wheel contact disc is more than the flanging Radial dimension.

According to some embodiments of the present utility model, the flanging is orthogonal with the annular body portion, the flanging It is arranged in parallel with the movable vane wheel contact disc.

According to some embodiments of the present utility model, thermoplastic part or thermosetting material that the bushing is formed in one Materials and parts.

Description of the drawings

Fig. 1 is the axonometric chart of the bushing according to this utility model embodiment；

Fig. 2 is the semi-cutaway of the bushing according to this utility model embodiment.

Reference：

Bushing 10, annular body portion 1, flanging 2, movable vane wheel contact disc 3, reinforcement structure (reinforcement) 4.

Specific embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio Same or similar element or the element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining this utility model, and it is not intended that to this utility model Restriction.

In description of the present utility model, it is to be understood that term " " center ", " axial direction ", " radial direction ", " on ", D score, The orientation or position relationship of the instruction such as "left", "right", " interior ", " outward " is, based on orientation shown in the drawings or position relationship, to be only For the ease of describe this utility model and simplify description, rather than indicate or imply indication device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term is " more It is individual " it is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.

The bushing 10 according to this utility model embodiment is described in detail with reference to Fig. 1-Fig. 2.

With reference to shown in Fig. 1, can include that annular body portion 1, movable vane wheel connect according to the bushing 10 of this utility model embodiment Tactile disk 3.

The lower end of annular body portion 1 is provided with flanging 2.During assembling, flanging 2 is suitable to contact with bearing inner race, outward Flange 2 increases the contact area of bushing 10 and bearing inner race, while also increasing the intensity of 10 lower end of bushing, thus can prevent The lower end of bushing 10 is because impulsive force is deformed and is deposited on bearing inner race.

Movable vane wheel contact disc 3 is upper end that is annular and being arranged on annular body portion 1.During assembling, movable vane wheel contact disc 3 is suitable to Contact with movable vane wheel.Further, movable vane wheel contact disc 3 is provided with reinforcement structure 4 with the intersection of annular body portion 1.Plus Strong structure 4 increases the intensity of bushing 10, and then can prevent movable vane wheel contact disc 3 and the intersection deformation of annular body portion 1 from opening Split.

According to the bushing 10 of this utility model embodiment, by arranging flanging 2 and reinforcement structure 4 so that bushing 10 Intensity is greatly improved, and thus when using bushing 10, bushing 10 is less prone to the phenomenon of strain cracking.

Preferably, bushing of the present utility model 10 adopts pressure injection or injection mo(u)lding, and manufacturing procedure is few, and mould is once made Create, just can be mass-produced above-mentioned bushing 10, substantially increases the production capacity of bushing 10, and product quality is more stable, Thus solve the problems, such as that conventional bushings processing mode is backward, production capacity is low, product quality is unstable.

Above-mentioned reinforcement structure 4 is reinforcement 4.Preferably, reinforcement 4 is for multiple, and multiple reinforcements 4 with regard to it is annular this The central axis in body portion 1 is symmetrical.Multiple reinforcements 4 can dramatically increase the intensity of bushing 10, prevent bushing 10 from using Deform in journey cracking.

In the specific example shown in Fig. 1, the quantity of reinforcement 4 is four, and two reinforcements 4 of arbitrary neighborhood are spaced 90°.Certainly, the quantity of reinforcement 4 is not limited only to four, or any number of.

Alternatively, reinforcement 4 is concave bar.In the specific example shown in Fig. 2, the bottom surface of concave bar is inclined-plane, and inclined-plane It is equal with the angle of movable vane wheel contact disc 3 with the angle and inclined-plane of annular body portion 1.In other optional embodiments, Inclined-plane can also be unequal with the angle and inclined-plane of annular body portion 1 and the angle of movable vane wheel contact disc 3, and the bottom of concave bar Face can also be arc surface, bending side or other shapes etc..Alternatively, concave bar can be obtained by Sheet Metal Forming Technology.

Radial dimension of the radial dimension of movable vane wheel contact disc 3 more than flanging 2, the contact with movable vane wheel of such bushing 10 Thus area can increase the stability after bushing 10 is assembled more than bushing 10 and the contact area of bearing inner race.

Preferably, flanging 2 is orthogonal with annular body portion 1, and flanging 2 is be arranged in parallel with movable vane wheel contact disc 3, thus may be used Make 3 contact with movable vane wheel of movable vane wheel contact disc, flanging 2 more steady with the contact of bearing inner race, improve so as to further Stability after the assembling of bushing 10.

In some preferred embodiments, the thermoplastic part that bushing 10 can be formed in one can for example be group Shape moulding compound (i.e. BMC) part etc..Using 10 satisfactory mechanical property of bushing obtained in BMC, dimensional stability it is high, Surface smoothness is good, water-fast, oil resistant, heat-resisting, excellent corrosion resistance.

In other optional embodiments, bushing 10 can also be integrally formed thermosetting material materials and parts, for example can be with It is PPS material pieces etc..Using bushing 10 obtained in PPS materials have excellent chemical-resistance, excellent mechanical performance and Thermostability.

Thermoplastic, thermosets density it is relatively low, it is possible thereby to mitigate the weight of bushing 10, and both materials The cost of material in actual production, can use any one the material manufacture bushing 10 in both materials, thus be obtained than relatively low Bushing 10 can solve the problems, such as that conventional bushings weight is big, high cost.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the feature described with reference to the embodiment or example It is contained at least one embodiment of the present utility model or example.In this manual, the schematic representation to above-mentioned term Identical embodiment or example are directed to necessarily.And, the specific features of description, structure, material or feature can be Combined in one or more any embodiment or example in an appropriate manner.Additionally, those skilled in the art can be by this Different embodiments or example described in description are engaged and are combined.

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, be changed, being replaced and modification.

Claims (10)

1. a kind of bushing, it is characterised in that include：

Annular body portion, the lower end of the annular body portion are provided with flanging；

Movable vane wheel contact disc, the movable vane wheel contact disc be annular and be arranged on the upper end of the annular body portion, the movable vane Wheel contact disc is provided with reinforcement structure with the intersection of the annular body portion.

2. bushing according to claim 1, it is characterised in that the reinforcement structure is reinforcement.

3. bushing according to claim 2, it is characterised in that the reinforcement is multiple and with regard to the annular body portion Central axis it is symmetrical.

4. bushing according to claim 2, it is characterised in that multiple reinforcements are four, and the two of arbitrary neighborhood Individual reinforcement is spaced 90 °.

5. bushing according to claim 2, it is characterised in that the reinforcement is concave bar.

6. bushing according to claim 5, it is characterised in that the bottom surface of the concave bar is inclined-plane.

7. bushing according to claim 6, it is characterised in that angle and the institute of the inclined-plane and the annular body portion State inclined-plane equal with the angle of the movable vane wheel contact disc.

8. bushing according to claim 1, it is characterised in that the radial dimension of the movable vane wheel contact disc is outer more than described The radial dimension of flange.

9. bushing according to claim 1, it is characterised in that the flanging is orthogonal with the annular body portion, described Flanging is be arranged in parallel with the movable vane wheel contact disc.

10. bushing according to claim 1, it is characterised in that thermoplastic part that the bushing is formed in one or Thermosetting material materials and parts.