CN207921276U - A kind of new type worm wheel drive block - Google Patents

Abstract

The utility model discloses a kind of new type worm wheel drive blocks, the component being related in a kind of glass-frame riser, including circular transmission block body, block body last week is driven to the limit hole for offering the limiting groove being clamped with limit protrusion and being clamped with limited post, the inner peripheral surface of the transmission block body is bonded with the peripheral surface of flange, hole wall of the limit hole on the inside of drive block protrudes from the inner peripheral surface of transmission block body and is bonded with the groove bottom for reinforcing slot, and hole wall of the limit hole on the outside of the drive block cell wall coplanar and with storage tank with the peripheral surface of transmission block body is bonded；The utility model makes the structural strength of drive block increase, even closer with the assembly of worm gear ontology and connector, reduces the play of worm gear drive block in rotation process, and reduce worm gear uses deflection, while increasing the efficiency of worm gear torque transmission.

Description

A kind of new type worm wheel drive block

Technical field

The utility model is related to the component in a kind of glass-frame riser, more particularly to a kind of new type worm wheel drive block.

Background technology

Glass-frame riser is the lifting gear of door/window glass of automobile, mainly by motor, retarder, conductor rope, guide plate and Glass mounting bracket forms, and has the characteristics of easy operation.

Worm gear is usually provided in existing retarder, worm gear referring to Figures 1 and 2, including worm gear ontology 1, worm gear pass Motion block 2 and connector 3.The side of worm gear ontology 1 offers the storage tank 11 being embedded in for worm-drive block 2, worm gear ontology 1 Middle part offers the axis hole 12 being pierced by for the shaft of turbine, and there are one rings in the setting of the edge of axis hole 12 for the slot bottom of storage tank 11 The flange 13 of shape, the slot bottom of storage tank 11 are also circumferentially uniformly arranged there are three limit protrusion 14, the peripheral surface of flange 13 with limit The raised 14 opposite positions in position, which offer, reinforces slot 131, and the lower surface of connector 3 is opposite between each two limit protrusion 14 There are one limited posts 31 for position setting.Worm-drive block 2 is the rubber disc of annular shape, offers and limits on worm-drive block 2 The limiting groove 211 of 14 clamping of protrusion and the limit hole 212 being clamped with limited post 31, and the hole wall of limit hole 212 protrudes from The peripheral surface and inner and outer circumferential surfaces of worm-drive block 2 and respectively with the cell wall of storage tank 11 and reinforce the groove bottom of slot 131 into line Face abuts.

When above-mentioned worm-drive block 2 is installed in storage tank 11, the cell wall of the peripheral surface and storage tank 11 of worm-drive block 2 Between and worm-drive block 2 inner peripheral surface and reinforce slot 131 slot bottom between in more gap, turbine is in rotation process In, worm-drive block 2 is easy to happen play in diametric(al), and then the torque for influencing worm gear transmits.

Utility model content

The purpose of this utility model is to provide a kind of new type worm wheel drive block, reduces drive block and is altered diametric It is dynamic, improve the efficiency that the torque of worm gear transmits.

The above-mentioned technical purpose of the utility model technical scheme is that：

A kind of new type worm wheel drive block, includes circular transmission block body, and transmission block body last week is to offering and limit The limiting groove of position protrusion clamping and the limit hole with limited post clamping, the inner peripheral surface of the transmission block body and flange it is outer Circumferential surface be bonded, hole wall of the limit hole on the inside of drive block protrude from transmission block body inner peripheral surface and with reinforce slot slot bottom Face paste is closed, and hole wall of the limit hole on the outside of the drive block cell wall coplanar and with storage tank with the peripheral surface of transmission block body is bonded.

Using the above scheme, transmission block body is embedded in the storage tank of worm gear ontology, the hole wall of limit hole respectively with add Gu the groove bottom of slot and the cell wall fitting of storage tank, face face abutment are abutted relative to line face so that be driven block body and add Gu the gap of the groove bottom of slot and the gap of the cell wall of transmission block body and storage tank are substantially reduced, transmission block body is prevented to exist Radial play is generated when worm gear rotates, and reinforces the effect of the structural strength of drive block entirety, so that drive block and worm gear Assembly between ontology and connector is even closer, and reduce worm gear uses deflection, and the torque for improving worm gear transmits Efficiency.

Further preferably：It is provided at the top of the transmission block body and the one-to-one fin of the limiting groove.

Using the above scheme, fin makes drive block under the uniform configuration for maintaining script, reduces transmission block body Thickness reduces the production cost of drive block to reduce the usage amount for the material for being driven block body.

Further preferably：The consistency of thickness of the depth of the limiting groove and the transmission block body, and the fin Bottom surface and limiting groove slot bottom it is coplanar.

Using the above scheme, coplanar setting is less than the thickness of transmission block body relative to the depth of limiting groove so that The thickness for being driven block body reduces, and to reduce the usage amount for the material for being driven block body, reduces the production of transmission block body Cost；It is more than the thickness of transmission block body relative to the depth of limiting groove, increases the structural strength of fin, and then increase It is driven the structural stability of block body entirety.

Further preferably：It is provided with chamfering at the sideline of the limiting groove.

Using the above scheme, the setting of chamfering improves drive block convenient for transmission block body Fast Installation in worm gear ontology Installation effectiveness；Furthermore it is possible to provide deformation space when elastic deformation axially occurs for drive block, drive block is reduced to worm gear The extruding force of ontology radial direction.

Further preferably：The fin is provided with chamfering at the edge of transmission block body radial direction.

Using the above scheme, drive block when in use, transmission block body can by connector shaft to extruding, fin is to setting There are the both sides of chamfering to deform upon, the setting of chamfering prevents connector from giving the force direction of drive block towards limiting groove, And then increase the structural stability of fin.

Further preferably：Be provided with several salient points at the top of the transmission block body, and the height of salient point with it is described convex Rib it is highly consistent.

Using the above scheme, salient point has shared the active force that connector is applied to fin so that connector gives drive block The active force of ontology is more uniform, increases the structural stability of transmission block body, to improve drive block and worm gear ontology with And the fitting tight degree of connector.

Further preferably：The salient point is uniformly arranged along the edge of the limit hole.

Using the above scheme, salient point is set to the edge of limit hole, increases knot of the transmission block body at limit hole Structure intensity, when salient point deforms upon, salient point to ontology squeeze so that the aperture of limit hole generates certain contraction, with this plus The fitting tight degree of the limited post of strong drive block and connector.

Further preferably：Each limit hole is correspondingly arranged there are four the salient point, and four salient points are with two for one Group is divided into two groups, and one of which is set to the opposite sides of limit hole, another group of edge along the outer edge of the transmission block body The inside edge for transmission block body is set to the opposite sides of limit hole.

Using the above scheme, four salient points are located at limit hole at the position close to transmission block body edge, are made with this Salient point given when deforming upon transmission block body extruding force be uniformly distributed so that in limit hole each position contraction Degree is consistent, and increases the structural stability of transmission block body.

In conclusion the utility model has the advantages that：

The setting that drive block passes through limit hole, fin, salient point and each chamfering so that the structural strength of drive block increases Add, it is even closer with the assembly of worm gear ontology and connector, reduce the play of worm gear drive block in rotation process, reduces Worm gear uses deflection, while increasing the efficiency of worm gear torque transmission.

Description of the drawings

Fig. 1 is the exploded perspective view of worm gear ontology and connector；

Fig. 2 is the structural schematic diagram of the worm-drive block of the prior art；

Fig. 3 is the structural schematic diagram of the utility model；

Fig. 4 is the structural schematic diagram of the utility model, and its view direction is opposite with Fig. 3.

In figure, 1, worm gear ontology；2, worm-drive block；3, connector；11, storage tank；12, axis hole；13, flange；131、 Reinforce slot；14, limit protrusion；21, it is driven block body；211, limiting groove；212, limit hole；213, fin；214, salient point； 31, limited post.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

A kind of new type worm wheel drive block, referring to Figure 1 and Figure 3, including transmission block body 21 made of rubber, drive block sheet On body 21 in annular shape, circumferential direction offer clamping corresponding with the limit protrusion of worm gear ontology 1 14 limiting groove 211 and with The limited post 31 of connector 3 corresponds to the limit hole 212 of clamping.

Wherein, when worm-drive block 2 is embedded in storage tank 11, it is driven the periphery of the inner peripheral surface and flange 13 of block body 21 Face paste is closed, hole wall of the limit hole 212 in transmission block body 21 inside protrude from the inner peripheral surface of transmission block body 21 and with reinforce slot 131 groove bottom carries out face face paste conjunction, and limit hole 212 is in the periphery of the hole wall and transmission block body 21 in 21 outside of transmission block body Face is coplanar and is bonded with the cell wall of storage tank 11, increases the fitting tight degree of worm-drive block 2 and worm gear ontology 1 with this.

With reference to Fig. 3 and Fig. 4, the top of transmission block body 21 is being provided with and 211 one-to-one fin of limiting groove 213, the length direction of fin 213 is the diametric(al) for being driven block body 21, and fin 213 is in 21 radial both sides of transmission block body Edge is both provided with chamfering.Limiting groove 211 is along the diametric(al) of transmission block body 21 through the inner wall for being driven block body 21 And outer wall, the consistency of thickness of depth and transmission block body 21, and the bottom surface of fin 213 and the slot bottom of limiting groove 211 are coplanar. Limiting groove 211 is both provided with chamfering at the opposite sides edge of its opening, and the inside edge of 21 bottom of transmission block body is limiting The both sides of groove 211 are again provided with chamfering, in order to which 2 Fast Installation of worm-drive block is in worm gear ontology 1（Referring to Fig.1）In.

With reference to Fig. 3, the top of transmission block body 21 is arranged between each two adjacent fin 213 there are four salient point 214, Four salient points 214 are arranged along the edge uniform intervals of limit hole 212, and the height one of the height of salient point 214 and fin 213 It causes.Four salient points 214 are divided into two groups with two for one group, and one of which is set to limit along the outer edge of transmission block body 21 The opposite sides in hole 212, another group of inside edge along transmission block body 21 is set to the opposite sides of limit hole 212, with this Increase worm-drive block 2 and connector 3（Referring to Fig.1）Fitting tight degree.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as within the protection scope of the present utility model all protected by Patent Law.

Claims (8)

1. a kind of new type worm wheel drive block, including circular transmission block body (21) are driven on block body (21) and circumferentially open up There are the limiting groove (211) being clamped with limit protrusion (14) and the limit hole (212) being clamped with limited post (31), feature exists In：The inner peripheral surface of the transmission block body (21) is bonded with the peripheral surface of flange (13), and the limit hole (212) is in drive block The hole wall of side protrudes from the inner peripheral surface of transmission block body (21) and is bonded with the groove bottom for reinforcing slot (131), and limit hole (212) exists Hole wall on the outside of drive block is coplanar with the peripheral surface of transmission block body (21) and is bonded with the cell wall of storage tank (11).

2. a kind of new type worm wheel drive block according to claim 1, it is characterised in that：The top of the transmission block body (21) Portion is provided with and the one-to-one fin (213) of the limiting groove (211).

3. a kind of new type worm wheel drive block according to claim 2, it is characterised in that：The depth of the limiting groove (211) The consistency of thickness of degree and the transmission block body (21), and the bottom surface of the fin (213) and the slot bottom of limiting groove (211) are total Face.

4. a kind of new type worm wheel drive block according to claim 2, it is characterised in that：The side of the limiting groove (211) Chamfering is provided at line.

5. a kind of new type worm wheel drive block according to claim 2, it is characterised in that：The fin (213) is in drive block The edge of ontology (21) radial direction is provided with chamfering.

6. a kind of new type worm wheel drive block according to claim 2, it is characterised in that：The top of the transmission block body (21) Portion is provided with several salient points (214), and the height of salient point (214) and the fin (213) is highly consistent.

7. a kind of new type worm wheel drive block according to claim 6, it is characterised in that：The salient point (214) is along described The edge of limit hole (212) is uniformly arranged.

8. a kind of new type worm wheel drive block according to claim 7, it is characterised in that：Each limit hole (212) is right It should be arranged there are four the salient point (214), four salient points (214) are divided into two groups with two for one group, and one of which is along described The outer edge of transmission block body (21) is set to the opposite sides of limit hole (212), and another group along transmission block body (21) Inside edge is set to the opposite sides of limit hole (212).