CN214617758U - Dustproof cover plate for engine tensioning wheel - Google Patents

Abstract

The utility model discloses an engine take-up pulley dust-proof cover plate, including the installation piece, installation piece rigid coupling support one end, support other end rigid coupling pivot subassembly, the bearing inner race is cup jointed to the last fixed of pivot subassembly, bearing inner race rigid coupling take-up pulley, it is preferred, be provided with the dust cap subassembly on the pivot subassembly, the dust cap subassembly includes the fixed dust cap of rigid coupling on the support and pegs graft at the activity dust cap of pivot subassembly tip, two annulars are seted up respectively to the take-up pulley both sides. The utility model discloses set up and inserted ring and annular, can strengthen the sealed degree of bearing department through inserting ring and annular and mutually supporting, avoided the interior phenomenon of advancing the ash of bearing. Simultaneously the utility model discloses a fixation nut fixes to mutually support through post and jack and carry on spacingly to movable shield, through demolising fixation nut, can take out movable shield, be convenient for maintain take-up pulley and bearing, it is convenient to dismantle.

Description

Dustproof cover plate for engine tensioning wheel

Technical Field

The utility model relates to an engine take-up pulley equipment technical field specifically is an engine take-up pulley dustproof cover plate.

Background

In recent years, the automobile industry in China is rapidly developed, the performance and the production technology of the tension pulley of the automobile engine are continuously improved, the engine is not provided with a cover plate independently for the tension pulley, the cover plate is generally of an integral structure and can cover the tension pulley, a belt driving wheel and a water pump belt pulley as a cover assembly; due to the integral design, the manufacture is relatively complex, and the dustproof structure of the targeted tension wheel is lacked.

In view of the above, the chinese utility model patent with the publication number CN211900804U discloses a dustproof cover plate for an engine tension pulley, which comprises a cover plate main body, wherein a convex tension pulley wheel shaft protection area is arranged at the center of the front surface of the cover plate main body; the front surface of the cover plate main body is provided with four thickened parts, two convex parts are arranged between the thickened parts, and connecting columns are arranged on the convex parts; the periphery of the front surface of the cover plate main body is provided with a curved edge, a group of side plates are arranged on the curved edge, and the side plates are positioned at two ends of the circumference diameter and are symmetrically arranged; the back center position of apron main part is the inner groovy, and its border forms the apron bead, sets up the dust screen on the inner groovy that is located the apron main part back, the dust screen blocks on the inside wall of apron bead all around, the dust screen inboard sets up sealed skeleton board, sealed skeleton board inboard sets up a sound insulation board layer.

Although this apron has promoted the dirt performance to the take-up pulley, has the amortization structure concurrently simultaneously, but it is not enough to take-up pulley bearing department dustproof performance, and at take-up pulley during operation, the ash is advanced most easily in bearing department, and this apron is difficult for dismantling simultaneously, can maintain the work and bring inconvenience to the take-up pulley after the installation.

Therefore, an engine tension wheel dustproof cover plate is provided for solving the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an engine take-up pulley dustproof cover plate to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the dustproof cover plate for the engine tensioning wheel comprises an installation block, wherein the installation block is fixedly connected with one end of a support, the other end of the support is fixedly connected with a rotating shaft assembly, a bearing inner ring is fixedly sleeved on the rotating shaft assembly, and a tensioning wheel is fixedly connected with a bearing outer ring;

preferably, the rotating shaft assembly is provided with a dust cap assembly, the dust cap assembly comprises a fixed dust cap fixedly connected to the support and a movable dust cap inserted into the end of the rotating shaft assembly, two annular grooves are respectively formed in two sides of the tensioning wheel, two insert rings are fixedly connected to one sides, close to the tensioning wheel, of the fixed dust cap and the movable dust cap respectively, the insert rings are inserted into the annular grooves in a sliding manner, the width of each bearing is smaller than that of the tensioning wheel, two annular convex blocks are fixedly connected to one sides, close to the tensioning wheel, of the fixed dust cap and the movable dust cap, the annular convex blocks are close to the bearings, the rotating shaft assembly comprises a fixed shaft fixedly connected to the support, the free end of the fixed shaft is fixedly connected with an insert shaft and a plurality of insert columns, the end of the insert shaft is fixedly connected with threaded columns, the movable dust cap is inserted into the insert shaft, the movable dust cap is fixedly connected with a plurality of insert holes corresponding to the positions of the insert columns, and fixed nuts are connected to the threaded columns through threads, the fixed dust cover and the movable dust cover are fixedly connected with convex edges at the edge of one side close to the tensioning wheel, and the convex edges are positioned on the outer side of the tensioning wheel.

Preferably, insert the ring lateral surface and rotate and connect a plurality of rollers, roller contact annular inside wall, heat dissipation annular is seted up to fixed shield and activity shield lateral surface, rigid coupling dust screen in the heat dissipation annular.

Preferably, a silencing cavity is fixedly connected between the dustproof net and the side wall of the heat dissipation ring groove, and a plurality of heat dissipation through holes are formed in the positions, corresponding to the silencing cavity, of one sides, close to the tensioning wheel, of the fixed dustproof cover and the movable dustproof cover.

Preferably, fixation nut is close to activity shield one end rigid coupling rubber clamping ring, rubber clamping ring contact activity shield, it is rubber structure to insert the post lateral surface, insert post and jack interference fit.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set up and inserted ring and annular, can strengthen the sealed degree of bearing department through inserting ring and annular and mutually supporting, avoided the interior phenomenon of advancing the ash of bearing. Simultaneously the utility model discloses a fixation nut fixes to mutually support through post and jack and carry on spacingly to movable shield, through demolising fixation nut, can take out movable shield, be convenient for maintain take-up pulley and bearing, it is convenient to dismantle.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the explosion structure of the present invention;

fig. 3 is an enlarged schematic view of the cross-sectional structure of the present invention.

In the figure: the device comprises a mounting block 1, a support 2, a rotating shaft assembly 3, a bearing 4, a tension pulley 5, a dust cap assembly 6, a fixed nut 7, a fixed shaft 31, an inserting shaft 32, a threaded column 33, an inserting column 34, an annular groove 51, a fixed dust cap 61, a movable dust cap 62, an inserting ring 611, an annular bump 612, a convex edge 613, a heat dissipation annular groove 614, a dust screen 615, a sound attenuation cavity 616, a heat dissipation through hole 617, a roller 618, an inserting hole 619 and a rubber press ring 71.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a dustproof cover plate for an engine tension pulley comprises an installation block 1, wherein the installation block 1 is fixedly connected with one end of a support 2, the other end of the support 2 is fixedly connected with a rotating shaft assembly 3, an inner ring of a bearing 4 is fixedly sleeved on the rotating shaft assembly 3, and an outer ring of the bearing 4 is fixedly connected with a tension pulley 5;

referring to fig. 2-3, the rotating shaft assembly 3 is provided with a dust cap assembly 6, the dust cap assembly 6 includes a fixed dust cap 61 fixedly connected to the bracket 2 and a movable dust cap 62 inserted into an end of the rotating shaft assembly 3, two annular grooves 51 are respectively formed on two sides of the tension pulley 5, two insertion rings 611 are respectively fixedly connected to one sides of the fixed dust cap 61 and the movable dust cap 62 close to the tension pulley 5, the insertion rings 611 are slidably inserted into the annular grooves 51, the width of the bearing 4 is smaller than the width of the tension pulley 5, two annular protrusions 612 are fixedly connected to one sides of the fixed dust cap 61 and the movable dust cap 62 close to the tension pulley 5, the annular protrusions 612 are close to the bearing 4, the outer side surfaces of the insertion rings 611 are rotatably connected to the plurality of rollers 618, the rollers 618 contact the inner side walls of the annular grooves 51, and the insertion rings 611 and the annular grooves 51 are mutually matched to enhance the sealing degree of the bearing 4, thereby preventing the dust from entering the bearing 4.

Referring to fig. 2-3, the rotating shaft assembly 3 includes a fixed shaft 31 fixed on the bracket 2, a free end of the fixed shaft 31 is fixed on an inserting shaft 32 and a plurality of inserting posts 34, an end of the inserting shaft 32 is fixed on a threaded post 33, a movable dust cap 62 is inserted on the inserting shaft 32, the movable dust cap 62 is fixed on a plurality of inserting holes 619 corresponding to the plurality of inserting posts 34, the threaded post 33 is connected with a fixed nut 7 by screw thread, an outer side surface of the inserting post 34 is of a rubber structure, the inserting post 34 is in interference fit with the inserting holes 619, the movable dust cap 62 can be limited by the mutual cooperation of the insert post 32 and the insert hole 619, and by removing the fixing nut 7, can take out activity shield 62, be convenient for maintain take-up pulley 5 and bearing 4, fixation nut 7 is close to activity shield 62 one end rigid coupling rubber clamping ring 71, and rubber clamping ring 71 contacts activity shield 62, has guaranteed fixation nut 7 when screwing the connection compactness of activity shield 62.

Referring to fig. 2-3, the fixed dust cap 61 and the movable dust cap 62 are fixedly connected to a flange 613 at a side edge close to the tension pulley 5, the flange 613 is located at an outer side of the tension pulley 5, the flange 613 can enhance the dust-proof performance to prevent dust from entering from a gap at the edge, a heat dissipation ring groove 614 is formed on outer side surfaces of the fixed dust cap 61 and the movable dust cap 62, a dust screen 615 is fixedly connected to the heat dissipation ring groove 614, a silencing chamber 616 is fixedly connected between the dust screen 615 and a side wall of the heat dissipation ring groove 614, and a plurality of heat dissipation through holes 617 are formed on the side of the fixed dust cap 61 and the movable dust cap 62 close to the tension pulley 5 corresponding to the silencing chamber 616.

The working principle is as follows: the utility model discloses set up and inserted ring 611 and annular 51, can strengthen the sealed degree of bearing 4 department through inserting ring 611 and annular 51 and mutually supporting, avoided advancing grey phenomenon in the bearing 4. Simultaneously the utility model discloses a fixation nut 7 fixes to mutually support through post 32 and jack 619 and carry on spacingly to activity shield 62, through demolising fixation nut 7, can take out activity shield 62, be convenient for maintain take-up pulley 5 and bearing 4, it is convenient to dismantle.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an engine take-up pulley dust-proof cover board, includes installation piece (1), installation piece (1) rigid coupling support (2) one end, support (2) other end rigid coupling pivot subassembly (3), fixed cup jointing bearing (4) inner circle on pivot subassembly (3), bearing (4) outer lane rigid coupling take-up pulley (5), its characterized in that:

the rotating shaft assembly (3) is provided with a dustproof cover assembly (6), the dustproof cover assembly (6) comprises a fixed dustproof cover (61) fixedly connected to the support (2) and a movable dustproof cover (62) inserted into the end of the rotating shaft assembly (3), two annular grooves (51) are formed in two sides of the tensioning wheel (5) respectively, two inserting rings (611) are fixedly connected to one sides, close to the tensioning wheel (5), of the fixed dustproof cover (61) and the movable dustproof cover (62) respectively, the inserting rings (611) are inserted into the annular grooves (51) in a sliding mode, the width of the bearing (4) is smaller than that of the tensioning wheel (5), two annular convex blocks (612) are fixedly connected to one sides, close to the tensioning wheel (5), of the fixed dustproof cover (61) and the movable dustproof cover (62), and the annular convex blocks (612) are close to the bearing (4);

pivot subassembly (3) include fixed axle (31) of rigid coupling on support (2), fixed axle (31) free end rigid coupling is inserted axle (32) and a plurality of post (34) of inserting, insert axle (32) tip rigid coupling screw post (33), insert and peg graft movable shield (62) on axle (32), movable shield (62) correspond a plurality of posts (34) of inserting position rigid coupling a plurality of jacks (619), threaded connection fixation nut (7) are gone up in screw post (33).

2. The engine tensioner dust cover of claim 1, wherein: the fixed dustproof cover (61) and the movable dustproof cover (62) are fixedly connected with a convex edge (613) at the edge of one side close to the tensioning wheel (5), and the convex edge (613) is positioned on the outer side of the tensioning wheel (5).

3. The engine tensioner dust cover of claim 1, wherein: the outer side surface of the insert ring (611) is rotatably connected with a plurality of rollers (618), and the rollers (618) are in contact with the inner side wall of the ring groove (51).

4. The engine tensioner dust cover of claim 1, wherein: heat dissipation annular groove (614) is seted up to fixed shield (61) and activity shield (62) lateral surface, rigid coupling dust screen (615) in heat dissipation annular groove (614).

5. The engine tensioner dust cover of claim 4, wherein: a silencing cavity (616) is fixedly connected between the dustproof net (615) and the side wall of the heat dissipation ring groove (614), and a plurality of heat dissipation through holes (617) are formed in the positions, corresponding to the silencing cavity (616), of one sides, close to the tensioning wheel (5), of the fixed dustproof cover (61) and the movable dustproof cover (62).

6. The engine tensioner dust cover of claim 1, wherein: fixation nut (7) are close to activity shield (62) one end rigid coupling rubber clamping ring (71), rubber clamping ring (71) contact activity shield (62), it is rubber structure to insert post (34) lateral surface, insert post (34) and jack (619) interference fit.

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