WO2015043461A1

WO2015043461A1 - Pulley

Info

Publication number: WO2015043461A1
Application number: PCT/CN2014/087247
Authority: WO
Inventors: 林友坤
Original assignee: 东莞市珅辉橡胶制品有限公司
Priority date: 2013-09-26
Filing date: 2014-09-24
Publication date: 2015-04-02
Also published as: CN103638672A; CN103638672B

Abstract

A pulley, comprising a wheel hub (1), and a shock absorption wheel body (2) installed on the wheel hub (1); the wheel hub (1) comprises a first wheel hub body (11) and a second wheel hub body (12) both integrally formed from metal materials or plastic and mutually adaptive; the ends of the first wheel hub body (11) and the second wheel hub body (12) are respectively embedded into the shock absorption wheel body (2) from two sides thereof, the end of the first wheel hub body (11) being pressed against the end of the second wheel hub body (12), and both wheel hub bodies are fixed via bolts (3) to form a removable assembly, such that the shock absorption wheel body (2) is steadily sleeved on the wheel hub (1). The pulley has a simple structure, and is easy to assemble. When a wheel body is badly worn, the shock absorption wheel body (2) can be changed separately without changing the wheel hub (1), such that the wheel hub (1) can be recycled, thus avoiding waste, being more environmentally friendly, and enabling the entire pulley to be fully utilized to reduce costs.

Description

Pulley

Technical field:

The invention relates to the technical field of pulley products, and particularly relates to a pulley which is simple in structure, simple in assembly, high in service life, and convenient for replacing parts, capable of making the best use and environmental protection.

Background technique:

The skateboard is a kind of entertainment sporting goods. The bottom of the slide car is a row of two pulleys. Using the rolling and sliding principle, people can make a variety of gorgeous movements at high speed.

The above-mentioned pulley generally comprises: a hub and a damper wheel body mounted on the hub, wherein the damper wheel body is a rubber wheel body, and the wheel hub is generally integrally molded by plastic, or the steel material is integrally formed, Disassemble the structure. The hub of such a structure causes the rubber wheel body to be sleeved on the hub only after thermal expansion, and then cold-processed, so that the rubber wheel body and the surface of the hub are fitted together to form a stable assembly; or directly, the steel material is integrally formed. The wheel hub is placed in the mold for making the rubber wheel body, so that the rubber wheel body is directly fixed to the hub while molding the rubber wheel body.

The assembly of the above pulleys is cumbersome and requires additional equipment assistance, which is very inconvenient to assemble. In addition, when the pulley is in use, only the damper wheel body in the pulley is in contact with the ground at the moment, and the friction wheel body has a short service life, but is fixed between the hub and the damper wheel body in the pulley. Assembled, it is not disassembled, which causes the shock-absorbing wheel body to be replaced after the severe wear, and the pulley can not be fully utilized, which will cause waste and increase the use cost.

In addition to the above, the pulleys used in products such as scooters, hand trucks, scooters, and the like all have the above problems, and in view of this, the inventors propose the following technical solutions.

Summary of the invention:

The object of the present invention is to overcome the deficiencies of the prior art and provide a simple structure and simple assembly. It is also easy to replace parts and pulleys with high service life.

In order to solve the above technical problem, the present invention adopts the following technical solution: the pulley includes: a hub and a damper wheel body mounted on the hub, the hub includes: each of the metal material or the plastic integrally formed and adapted to each other The first hub body and the second hub body, the end of the first hub body and the end of the second hub body are respectively embedded in the damper wheel body from both sides of the damper wheel body, and the end of the first hub body Abutting against the end of the second hub body and being bolted to form a detachable assembly, the damper wheel body is stably sleeved on the hub formed by the first hub body and the second hub body.

Further, in the above technical solution, the first hub body includes: a first bearing portion for carrying the damper wheel body and a first cover portion formed at an end of the first bearing portion, the first The bearing portion is embedded in the damper wheel body, and the end surface of the first cover body portion abuts against the side surface of the damper wheel body.

Further, in the above technical solution, the surface of the first bearing portion is a first tapered surface, and the first tapered surface is formed with a plurality of uniformly distributed and locked with the inner wall of the damping wheel a first bump and a first rib; the end surface of the first cover portion is formed with a first annular flange protruding toward the first bearing portion, the first annular flange being embedded in the damper wheel body Side.

Further, in the above technical solution, the second hub body includes: a second bearing portion for carrying the damper wheel body and a second cover portion formed at an end of the second carrier portion, the second The bearing portion is embedded in the damper wheel body, and the end surface of the second cover portion closely abuts against the side surface of the damper wheel body.

Further, in the above technical solution, the second bearing portion is formed with a second tapered surface and a first annular surface that are coupled to each other, and the second tapered surface is formed with a plurality of uniform distributions and the shock absorption a second ridge of the inner wall of the wheel, wherein the first annular surface is formed with a plurality of second protrusions uniformly distributed and latched with the inner wall of the damper wheel, wherein the second protrusion extends to the first end Two tapered surfaces.

Further, in the above technical solution, the end surface of the second cover portion is formed with a second bearing a second annular flange protruding in the direction of the carrier, the second annular flange being embedded in a side of the damping wheel body.

Further, in the above technical solution, the first limiting slot and the second limiting slot respectively corresponding to the first annular flange and the second annular flange are formed on both sides of the damping wheel body, and The first annular groove and the second limiting groove are respectively engaged with the first annular flange and the second annular flange.

Further, in the above technical solution, the inner wall of the damper wheel body is formed with an annular convex portion, and the annular convex portion includes: an annular flange and a third tapered surface symmetrical on both sides of the annular flange, Forming, on the third tapered surface, a plurality of first card slots adapted to the first and second ribs, the annular flange being formed with a plurality of the first and second bumps The second card slot is adapted to extend to the third tapered surface on both sides.

Further, in the above technical solution, the first hub body is provided with a through hole penetrating the first bearing portion and the first cover portion, and the end surface of the second hub body is provided with a threaded hole that cooperates with the through hole. And spirally contacting the threaded hole through the through hole through the bolt, so that the second hub body and the first hub body form a detachable stable assembly.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: the hub of the present invention is composed of a first hub body and a second hub body made of metal material or plastic, and the first hub body and the first body The two hub bodies are bolted to form a detachable assembly. When assembled, the first carrier portion of the first hub body and the second carrier portion of the second hub are respectively embedded from the damper wheel body, and the first cover portion of the first hub body and the second cover of the second hub The portions respectively abut against the two sides of the damper wheel body, wherein the first annular flange of the first cover portion and the second annular flange of the second cover portion are respectively embedded in the first limit of the two sides of the damper wheel body The slot and the second limiting slot finally fix the first hub body and the second hub body by bolts, so that the damping wheel body is stably mounted on the hub, and the whole assembly process is simple and fast, and no additional auxiliary equipment is needed. Auxiliary assembly facilitates assembly efficiency and lowers production costs. In addition, in the damping wheel body After severe wear, the shock wheel body can be replaced separately, the replacement is simple, and the hub can be recycled, so that the wheel can be recycled, avoiding waste, being more environmentally friendly, and making full use of the entire pulley, thereby reducing the use of the present invention. The cost is beneficial to improve the service life and market competitiveness of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS:

Figure 1 is a perspective view of the present invention;

Figure 2 is a perspective view of another perspective of the present invention;

Figure 3 is an exploded perspective view of the present invention;

Figure 4 is a cross-sectional view of the present invention;

Figure 5 is a cross-sectional view of the damper wheel body of the present invention;

Figure 6 is a perspective view of the first hub body of the present invention;

Description of the reference signs:

1 hub 101 first shaft hole

102 second shaft hole 103 first cavity

104 second cavity 11 first hub body

110 perforation 111 first bearing part

112 first cover portion 113 first bump

114 first rib 115 first annular rim

12 second hub body 120 threaded hole

121 second carrying portion 122 second cover portion

123 second tapered surface 124 first annular surface

125 second rib 126 second bump

127 second annular flange 2 damping wheel body

201 annular flange 202 third tapered surface

21 first limit slot 22 second limit slot

23 annular convex portion 231 first card slot

232 second card slot 3 bolt

detailed description:

The invention will now be further described in conjunction with specific embodiments and the accompanying drawings.

1-6 is a structure of a pulley, comprising: a hub 1 and a damper wheel body 2 mounted on the hub 1, the damper wheel body 2 is wrapped on the hub 1 and protrudes Outside the hub 1.

The hub 1 is internally formed with a cavity for assembling a bearing, and the first shaft hole 101 and the second shaft hole 102 penetrating the cavity are disposed on both sides of the hub 1.

The hub 1 includes a first hub body 11 and a second hub body 12 which are integrally formed of metal material or plastic and are adapted to each other. The end of the first hub body 11 and the end of the second hub body 12 They are respectively embedded in the damper wheel body 2 from both sides of the damper wheel body 2, and the ends of the first hub body 11 abut against the ends of the second hub body 12, and are fixed by bolts 3 to form a detachable assembly. The damping wheel body 2 is stably sleeved on the hub 1 formed by the first hub body 11 and the second hub body 12.

The first hub body 11 includes a first bearing portion 111 for carrying the damper wheel body 2 and a first cover portion 112 formed at an end of the first carrier portion 111. The first carrier portion 111 is embedded. In the damper wheel body 2, the end surface of the first cover body portion 112 abuts against the side surface of the damper wheel body 2.

A first cavity 103 constituting the cavity is formed inside the first bearing portion 111.

The surface of the first bearing portion 111 is a first tapered surface, and the first tapered surface is formed with a plurality of first bumps 113 and a plurality of uniformly distributed and locked with the inner wall of the damper wheel body 2 a protruding strip 114; the end surface of the first cover portion 112 is formed with a first annular flange protruding toward the first bearing portion 111 115. The first annular flange 115 is embedded in a side of the damper wheel body 2.

A first shaft hole 101 penetrating the first cavity 103 inside the first bearing portion 111 is disposed at a middle portion of the side surface of the first cover portion 112.

The second hub body 12 includes a second bearing portion 121 for carrying the damper wheel body 2 and a second cover portion 122 formed at an end of the second carrier portion 121. The second carrier portion 122 is embedded. In the damper wheel body 2, the end surface of the second cover portion 122 abuts against the side surface of the damper wheel body 2.

The second bearing portion 121 is formed with a second tapered surface 123 and a first annular surface 124 that are coupled to each other. The second tapered surface 123 is formed with a plurality of uniformly distributed and inner wall of the shock absorbing wheel body 2 a second ridge 125 of the position, wherein the first annular surface 123 is formed with a plurality of second protrusions 126 uniformly distributed and engaged with the inner wall of the damper wheel body 2, wherein the second protrusion 126 extends to one end to On the second tapered surface 123.

A second cavity 104 constituting the cavity is formed inside the second bearing portion 121.

The end surface of the second cover portion 122 is formed with a second annular flange 127 protruding in the direction of the second receiving portion 121, and the second annular flange 127 is embedded in the side of the damper wheel body 2.

A second shaft hole 102 penetrating the second cavity 104 inside the second bearing portion 121 is disposed at a middle portion of the second cover portion 122.

The first hub body 11 is provided with a through hole 110 penetrating the first bearing portion 111 and the first cover portion 112. The end surface of the second hub body 12 is provided with a threaded hole 120 that cooperates with the through hole 110, and The screw body 3 is screwed into the threaded hole 120 through the through hole 110, so that the second hub body 12 and the first hub body 11 form a detachable and stable assembly, and the hub 1 is constructed.

The first limiting slot 21 and the second limiting slot 22 respectively corresponding to the first annular flange 115 and the second annular flange 127 are formed on both sides of the damper wheel body 2, and pass through the first The limiting slot 21 and the second limiting slot 22 are in place with the first annular flange 115 and the second annular flange 127, respectively.

The inner wall of the damper wheel body 2 is formed with an annular convex portion 23, and the annular convex portion 23 includes: an annular flange 201 and a third tapered surface 202 symmetrical on both sides of the annular flange 201, the third A plurality of first slots 231 are formed on the tapered surface 202 to be matched with the first ribs 114 and the second ribs 125. The annular flange 201 is formed with a plurality of the first bumps 113 and the first The second latch 126 is adapted to the second slot 232, and the second slot 232 extends to the third tapered surface 202.

The damper wheel body 2 is a rubber wheel body or a silicone wheel body. In the present embodiment, the shock absorbing wheel body 2 is a silicone wheel body, because the performance of the silicone wheel body is good and the price is low.

In the assembly, the first bearing portion of the first hub body and the second bearing portion of the second hub are respectively embedded from the damper wheel body. At this time, the end face of the first bearing portion of the first hub body and the first An end surface of the second carrier portion of the second hub abuts, the first bump on the first carrier portion of the first hub body and the second bump on the second carrier portion of the first rib and the second hub body The second ridges are respectively locked with the inner wall of the damper wheel body, and are fixed; in addition, the first cover body portion of the first hub body and the second cover body portion of the second hub are respectively coupled with the damper wheel body The first annular flange of the first cover portion and the second annular flange of the second cover portion are respectively embedded in the first limiting slot and the second limiting slot on both sides of the damping wheel body. Finally, the first hub body and the second hub body are fixed by bolts, so that the damping wheel body is stably mounted on the hub, the whole assembly process is simple and fast, and no additional auxiliary equipment is needed for auxiliary assembly, thereby facilitating assembly efficiency and reduce manufacturing cost. In addition, after the damper wheel body is severely worn, the damper wheel body can be replaced separately, the replacement is simple, and the hub can be recycled without the need to replace the wheel hub, thereby avoiding waste and being more environmentally friendly, so that the entire pulley is fully obtained. The use, so as to reduce the use cost of the invention, is beneficial to improving the service life and market competitiveness of the present invention.

Of course, the above description is only a specific embodiment of the present invention, and is not intended to limit the implementation of the present invention. Equivalent changes or modifications made to the structures, features and principles of the present invention should be included in the scope of the present invention.

Claims

A pulley comprising: a hub (1) and a damper wheel body (2) mounted on the hub (1), wherein the hub (1) comprises: one piece formed of metal material or plastic The first hub body (11) and the second hub body (12) are adapted to each other, and the ends of the first hub body (11) and the ends of the second hub body (12) are respectively detached from the damper wheel body ( 2) Both sides are embedded in the damper wheel body (2), and the end of the first hub body (11) abuts against the end of the second hub body (12) and is fixed by bolts (3) to form a detachable The assembled assembly is such that the damper wheel body (2) is stably sleeved on the hub (1) composed of the first hub body (11) and the second hub body (12).
A pulley according to claim 1, wherein said first hub body (11) comprises: a first bearing portion (111) for carrying said damper wheel body (2) and formed on the a first cover portion (112) at an end of the carrying portion (111), the first bearing portion (111) is embedded in the damper wheel body (2), the end surface of the first cover portion (112) and the damper wheel The sides of the body (2) are closely abutted.
A pulley according to claim 2, wherein the surface of the first bearing portion (111) is a first tapered surface, and the first tapered surface is formed with a plurality of uniform distributions and a first bump (113) and a first rib (114) of the inner wall of the damper wheel body (2); the end surface of the first cover portion (112) is formed with a first bearing portion (111) A first annular flange (115) protruding in a direction, the first annular flange (115) being embedded in a side of the damper wheel body (2).
A pulley according to claim 3, wherein said second hub body (12) comprises: a second bearing portion (121) for carrying said damper wheel body (2) and formed on the a second cover portion (122) at an end of the second carrying portion (121), the second carrying portion (122) is embedded in the damper wheel body (2), and the end surface of the second cover portion (122) is damped The sides of the wheel body (2) are closely abutted.
The pulley according to claim 4, wherein the second bearing portion (121) is formed with a second tapered surface (123) and a first annular surface (124) that are coupled to each other, and the second Conical surface (123) Forming a plurality of second ribs (125) uniformly distributed and engaging with the inner wall of the damper wheel body (2), the first annular surface (123) is formed with a plurality of uniform distribution and damping wheels The second bump (126) of the inner wall of the body (2) is locked, wherein one end of the second bump (126) extends to the second tapered surface (123).
A pulley according to claim 5, wherein the end surface of the second cover portion (122) is formed with a second annular bead (127) projecting in the direction of the second receiving portion (121). The second annular flange (127) is embedded in a side of the damper wheel body (2).
A pulley according to claim 6, wherein said damper wheel body (2) is formed on both sides with said first annular rim (115) and said second annular rim (127), respectively. Corresponding first limiting slot (21) and second limiting slot (22), and respectively passing the first limiting slot (21) and the second limiting slot (22) with the first annular flange (115) Engaged with the second annular flange (127).
A pulley according to claim 7, wherein the inner wall of the damper wheel body (2) is formed with an annular projection (23), the annular projection (23) comprising: an annular flange (201) And a third tapered surface (202) symmetrical on both sides of the annular flange (201), the third tapered surface (202) being formed with a plurality of the first ribs (114) and a second rib (125) is fitted with a first card slot (231), and the annular flange (201) is formed with a plurality of seconds adapted to the first bump (113) and the second bump (126) The card slot (232) extends from both sides of the second card slot (232) to the third tapered surface (202).
A pulley according to claim 8, wherein the first hub body (11) is provided with a through hole (110) penetrating through the first bearing portion (111) and the first cover portion (112). The end surface of the second hub body (12) is provided with a threaded hole (120) that cooperates with the through hole (110), and passes through the through hole (110) and the threaded hole through the bolt (3). The (120) spiral connection provides a detachable and stable assembly of the second hub body (12) and the first hub body (11).