TWI611122B - One-way rotary brake structure improvement - Google Patents

Description

One-way rotary brake structure improvement

The present invention relates to a rotary brake, and more particularly to a structural improvement of a one-way rotary brake that is applied to a power machine to provide a one-way transmission torque.

Pressing, the one-way rotary brake has the function of preventing reverse transmission, and can only transmit torque in one direction. In the opposite direction, the active part will only idle, so it is widely used in power machinery with reverse concerns including bicycles, locomotives, and turning tools. on.

The conventional one-way rotary brake comprises: a rotary brake body and a plurality of rolling elements, wherein the rotary brake body has a ring shape and has a bearing ring surface, and the plurality of groove grooves are arranged on the ring surface of the bearing ring, the plurality of rolling The parts are placed in the various tanks and can be displaced and rolled. In use, a rotating member is assembled in a sleeve manner on the bearing ring surface of the rotating brake body, and one of the rotating brake body and the rotating member is an active member and the other is a driven member, when the active member is opposite to the rotating member When the follower rotates in one direction, the driven member can be rotated by the active member. When the active member rotates in the opposite direction with respect to the driven member, an idle state is formed between the active member and the driven member. .

The conventional one-way rotary brake has high structural strength and precision required for the groove, and therefore requires the use of a material having a certain hardness, and complicated processing with an expensive computer numerical control machine tool (CNC), which has high manufacturing cost and does not conform to Economic benefits, in addition, no rotation When the rotating member is rotated, the rotating brake body needs to be provided with a blocking member to prevent the rolling members in the receiving groove from falling out, which is quite troublesome, and when the rotary brake body is provided with the rotating member, it is necessary to be careful to prevent the rolling member from falling outward. As a result, the installation is not easy and time-consuming.

The inventors of the present invention have the above-mentioned many shortcomings in view of the conventional one-way rotary brakes, and the present invention has been developed after extensive discussion and trial sample testing, and multiple corrections and improvements.

The invention provides a structural improvement of a one-way rotary brake, comprising: a rotary brake body, which is composed of at least one annular body, the rotary brake body has a bearing ring surface and two side surfaces, and the bearing sleeve annular surface is arranged in a plurality of slots The pocket extends through both sides of the rotary brake, and the pocket has a carding end and a disengagement end, the depth of the carding end is less than the depth of the disengagement end; and a plurality of rolling elements are received in each of the rotating brake bodies Displaceable and rolling in the pocket, the rolling member has a diameter larger than a depth of the locking end of the rotary brake body pocket, greater than a depth of the disengaged end of the rotary brake body pocket, and opposite ends of the rolling member Each of the plurality of flaps is provided with an annular flap-shaped body, and is assembled on both sides of the rotating brake body, and the two flaps are spaced apart from each other by a plurality of elongated holes for the plurality of rolling elements. The limiting protrusion is displaceably disposed to restrict displacement of the rolling member between the locking end and the disengaging end of the receiving groove, and prevent the rolling member from being disengaged from the receiving groove.

The main object of the present invention is that the rotary brake body can be formed by simple stamping or cutting, and the manufacturing process does not require the use of an expensive computer numerical control machine tool (CNC), which is low in manufacturing cost, economical, and accommodated. The rolling elements in the groove are not dropped outwards, and it is not necessary to set a blocking member to prevent the rolling elements in the receiving groove when the rotating member is not assembled, and The rotary brake body can be easily and conveniently assembled with the rotating parts to reduce the installation time.

10‧‧‧Rotary brake body

10a‧‧‧ring body

11‧‧‧Set of torus

111‧‧‧ 容容

1111‧‧‧Card end

1112‧‧‧Without

12‧‧‧ side

13‧‧‧ side

14‧‧‧Combination hole

15‧‧‧Connected parts

20‧‧‧Rolling parts

21‧‧‧Limited convex

30‧‧ ‧Flap

31‧‧‧Combination hole

32‧‧‧Long hole

40‧‧‧ External thread

50‧‧‧Rotating parts

D1‧‧‧diameter

H1‧‧‧depth

H2‧‧‧depth

X1‧‧‧ first direction

X2‧‧‧second direction

The first figure is a perspective exploded view of the present invention.

The second figure is a three-dimensional combination of the present invention.

The third figure is a cross-sectional view of the present invention.

The fourth figure is a cross-sectional view of the rotating member of the present invention.

The fifth figure is an enlarged view of the circled part of the fourth figure.

The sixth figure is a schematic diagram of the cross-sectional action of the one-way transmission of the present invention.

Figure 7 is a schematic view of another cross-sectional operation of the one-way transmission of the present invention.

The eighth figure is a schematic diagram of the cross-sectional action of the idling of the present invention.

The ninth drawing is a schematic view of another cross-sectional action of the idling of the present invention.

Referring to the first, second, third, fourth and fifth figures, the unidirectional rotary brake of the present invention is improved in structure, comprising: a rotary brake body 10, a plurality of rolling members 20 and two blocking pieces 30.

The rotary brake body 10 is composed of at least one annular body 10a. In the embodiment, the rotary brake body 10 is formed by stacking three-piece annular bodies 10a. The rotary brake body 10 has a bearing ring surface 11 and two. The side surface 12, 13 is spaced apart from the plurality of pockets 111. The pocket 111 extends through the two sides 12, 13 of the rotary brake body 10, and the pocket 111 has a locking end 1111 and a detachment. The end 1112, the depth h1 of the card end 1111 is smaller than the depth h2 of the disengagement end, and the three ring body 10a is provided with a plurality of coupling holes 14 avoiding the slot 111. The coupling holes 14 are respectively disposed through a coupling member 15 such that the three annular bodies 10a are integrally fixed and integrated.

The plurality of rolling elements 20 are received in the respective slots 111 of the rotary brake body 10 and are displaceable and rotatable. The rolling elements 20 are columnar and have a diameter d1 which is larger than the housing 111 of the rotary brake body 10 . The depth h1 of the card end 1111 is smaller than the depth h2 of the disengagement end 1112 of the slot 111 of the rotary brake body 10, and a limiting protrusion 21 is disposed at opposite ends of the rolling member 20, and the limiting protrusion 21 is This embodiment has a convex column shape.

The two flaps 30 are annular flap-shaped bodies, and are assembled to the two side surfaces 12 and 13 of the rotary brake body 10 . The two flaps 30 are provided with a plurality of coupling holes 31 avoiding the slots 111 of the rotary brake body 10 . The plurality of coupling holes 31 are bored for the coupling member 15 such that the two blocking pieces 30 are integrally coupled with the rotary brake body 10, and the two blocking pieces 30 are provided with a plurality of symmetrical plurals corresponding to the slots 111 of the rotary brake body 10. The elongated hole 32 is configured to be displaceably disposed through the limiting protrusion 21 of the plurality of rolling elements 20, restricting displacement of the rolling member 20 between the locking end 1111 and the disengaging end 1112 of the receiving slot 111, and preventing the rolling piece 20 is detached from the pocket 111.

Furthermore, the outer edge of the rotary brake body 10 or the outer side of the rotary brake body 10 and the two flaps 30 are provided with screwing external threads 40.

In use, as shown in the fourth and fifth figures, the bearing ring surface 11 of the rotary brake body 10 is assembled with a rotating member 50 in a sleeve manner, and the rotary brake body 10 and the rotating member 50 are respectively In the embodiment, the rotating member 50 is an active member, and the rotating brake body 10 is a driven member. When the driving member rotates relative to the driven member in a first direction x1, As shown in the sixth and seventh figures, the rolling member 20 is displaced by the frictional force toward the locking end 1111 of the receiving slot 111. At this time, since the diameter d1 of the rolling member 20 is greater than the depth h1 of the locking end 1111, The rolling element 20 is clamped between the receiving portion 111 and the rotating member 50, and the active member is carried by the active member The follower is rotated. When the driving member rotates relative to the follower in a second direction x2 opposite to the first direction x1, as shown in the eighth and ninth views, the rolling member 20 is driven by the friction force to the pocket 111. Displacement in the direction of the disengagement end 1112. At this time, because the diameter d1 of the rolling member 20 is smaller than the depth h2 of the disengagement end 1112, so that the rolling member 20 is no longer clamped between the pocket 1111 and the rotating member 50, the active member and the active member are An idle state is formed between the followers.

From the structure of the above specific embodiment, the following benefits can be obtained:

1. The unidirectional rotary brake of the present invention is improved in structure, wherein the rotary brake body 10 is composed of at least one annular body 10a, and the groove 111 of the rotary brake body 10 penetrates through the two side faces 12, 13 and can be easily formed by stamping or cutting. The process does not require the use of an expensive computer numerical control machine (CNC), which is inexpensive to manufacture and economical.

2. The unidirectional rotary brake of the present invention is improved in structure. The two opposite ends of the rolling member 20 are respectively provided with a limiting convex portion 21, and the two blocking pieces 30 are assembled on both sides 12 and 13 of the rotating brake body 10, two gears. The slats 111 of the slidable brake body 10 are provided with symmetrical plurality of elongated holes 32 for the displacement of the limiting protrusions 21 of the plurality of rolling elements 20 to prevent the rolling of the accommodating grooves 111. The member 20 is dropped outward without the need for a blocking member when the rotating member 50 is not disposed, and the rotating brake body 10 can be easily and conveniently assembled with the rotating member 50, which reduces the installation man-hour and improves the utility.

10‧‧‧Rotary brake body

10a‧‧‧ring body

11‧‧‧Set of torus

111‧‧‧ 容容

14‧‧‧Combination hole

15‧‧‧Connected parts

20‧‧‧Rolling parts

21‧‧‧Limited convex

30‧‧ ‧Flap

31‧‧‧Combination hole

32‧‧‧Long hole

Claims (7)

The invention relates to a structural improvement of a one-way rotary brake, comprising: a rotary brake body, which is composed of at least one annular body, the rotary brake body has a bearing ring surface and two side surfaces, and the bearing sleeve annular surface is arranged in a plurality of slots, the capacity The slot extends through the two sides of the rotary brake, and the slot has a latching end and a disengagement end, the depth of the latching end is smaller than the depth of the disengaged end; and the plurality of rolling elements are received in the slots of the rotating brake body Displaceable and rolling, the rolling member has a diameter larger than a depth of the locking end of the rotary brake body receiving groove, less than a depth of the disengaging end of the rotary brake body receiving groove, and the rolling member is provided at each of opposite ends a limiting protrusion; and two blocking pieces, which are annular sheet-like bodies, are assembled on both sides of the rotating brake body, and the two blocking pieces are spaced apart from each other by a plurality of elongated holes, and the plurality of elongated holes are arranged for the limit of the plurality of rolling elements The convex portion is displaceably disposed to restrict displacement of the rolling member between the engaging end and the disengaging end of the receiving groove, and prevent the rolling member from being disengaged from the receiving groove. The structural improvement of the one-way rotary brake according to claim 1, wherein the rotary brake system is formed by stacking a plurality of sheet-shaped annular bodies, and the plurality of annular bodies avoiding the plurality of coupling holes. The plurality of coupling holes are respectively disposed through a coupling member, so that the plurality of annular bodies are combined and fixed integrally. The structural modification of the one-way rotary brake according to claim 1, wherein the rolling member is columnar. The structure of the one-way rotary brake according to claim 1, wherein the limiting protrusion of the rolling member has a convex column shape. The structural improvement of the one-way rotary brake according to claim 2, wherein the two blocking pieces are provided with a plurality of coupling holes avoiding the groove of the rotary brake body, and the plurality of coupling holes are provided for the coupling member to be worn. The two blocking pieces are fixedly integrated with the rotating brake body. The structural modification of the one-way rotary brake according to claim 1, wherein the outer edge of the rotary brake body is provided with an external thread. The unidirectional rotary brake according to claim 1, wherein the rotary brake body and the outer edges of the two flaps are provided with external threads.