TWM614482U - Double sheave pulley - Google Patents

Abstract

This creation provides a two-way rope wheel, comprising: a first rope groove and a second rope groove, which are arranged on the circumferential surface of the rope wheel; a pair of first coupling grooves are recessed on the first end surface of the rope wheel, each The first connecting groove has an inner end and a connecting end, the connecting end is connected with the first rope groove; a pair of second connecting grooves are recessed on the second end surface of the rope pulley, each of the second connecting grooves It has an inner end and a connecting end, and the connecting end is connected to the second rope groove; thereby, each end surface of the rope pulley is provided with two coupling grooves, which can be used for the two ropes to be selectively installed on each end surface. A connecting groove is wound on the two rope grooves. When the two ropes are installed in different coupling grooves, the direction in which they are wound around the sheave can be changed, and the two ropes can be easily disassembled and assembled on the sheave.

Description

Two-way sheave

This creation is about a kind of pulley, in detail, it refers to a kind of rope pulley connected to a rope.

Press, the pulley is a mechanical element for the rope to be wound around. The conventional pulley has a ring-shaped groove on its periphery, which can only be wound by one rope, that is, only a single rope is connected to the pulley, and it is difficult to combine two ropes with the pulley. .

In addition, when a rope is combined with a pulley, the winding direction of the rope on the pulley is fixed, it is not easy to change to other winding directions, and it is difficult to separate the rope from the pulley.

The purpose of this creation is to solve the lack of lifting, and its main purpose is to provide a two-way sheave for connecting two ropes.

Another purpose of this creation is to provide a two-way sheave, which can change the winding direction of two ropes around the sheave.

The purpose of this creation is to provide a two-way sheave, which can easily disassemble and assemble the rope from the sheave without disassembling the sheave.

In order to achieve the above-mentioned purposes, the two-way sheaves provided by this creation include: The first rope groove and the second rope groove are arranged on the circumferential surface of the rope wheel; A pair of first coupling grooves are recessed on the first end surface of the rope sheave, each of the first coupling grooves has an inner end and a communicating end, and the communicating end is connected to the first rope groove; a positioning recess, Set at the inner end of each of the first coupling grooves; A pair of second coupling grooves are recessed on the second end surface of the rope sheave, each of the second coupling grooves has an inner end and a communicating end, and the communicating end is connected to the second rope groove; a positioning recess, Set at the inner end of each of the second coupling grooves. Thereby, each end surface of the rope wheel is provided with two coupling grooves, and two ropes can be optionally installed with any coupling groove on each end surface, and are wound on the two rope grooves, and the two ropes are installed in When the combination groove is different, the direction in which it is wound on the sheave can be changed. At the same time, the rope is easy to assemble and disassemble on the sheave.

Preferably, the two first coupling grooves are symmetrically provided on the first end surface of the sheave; the two second coupling grooves are also symmetrically provided on the second end surface of the sheave.

Preferably, the two first coupling grooves are both arc-shaped, and the two first coupling grooves are reverse arc-shaped; the two second coupling grooves are both arc-shaped, and the two second coupling grooves are Reverse arc.

Preferably, the position of the two first coupling grooves on the first end surface is the same as the position of the two second coupling grooves on the second end surface; the two-axis through holes are along the line of the sheave. Axially penetrates the first and second end surfaces of the sheave, one of the through holes communicates with the positioning recess of a first coupling groove and the positioning recess of a second coupling groove located at the same position; the other through hole communicates with the positioning recess of a second coupling groove. The positioning recess of the other first coupling groove and the positioning recess of the other second coupling groove in the same setting position.

Preferably, both ends of the two ropes are provided with a head, wherein the first rope is set in a first coupling groove and surrounds the first rope groove, and the head of the first rope is set Is inserted into and locked in the positioning recess of the first coupling groove; the second rope groove is inserted into the second coupling groove and surrounds the second rope groove, and the head of the second rope is tied It is inserted and locked in the positioning recess of the second coupling groove.

Preferably, the outer diameter of each positioning recess is greater than the groove width of each coupling groove; the outer diameter of the head of each rope is greater than the outer diameter of each rope.

Preferably, the rope pulley is pivoted on a wheel base and located between the two brackets of the wheel base.

Preferably, it also has: a first pin hole arranged in the rope sheave; a second pin hole arranged in the bracket of the wheel seat; a positioning pin which can be inserted into the first pin hole and the second pin hole To fix the sheave. .

Preferably, there is another shaft rod, one end of which is connected to the first end surface or the second end surface of the sheave, and when the sheave rotates, the shaft and the sheave rotate together.

Please refer to Figures 1 and 2, which is a two-way sheave (hereinafter referred to as sheave) 10 provided by a preferred embodiment of this creation. The sheave 10 is a wheel body with a circumferential surface and first The end surface 11 and the second end surface 12. The rope wheel also contains:

Two annular rope grooves, the first rope groove 14 and the second rope groove 15 respectively, are provided on the circumferential surface of the rope wheel and are adjacent to the first end surface 11 and the second end surface 12, respectively.

A pair of first coupling grooves 20 are symmetrically recessed on the first end surface 11 of the sheave 10, for example, as shown in FIG. 1, the two first coupling grooves 20 are arc-shaped grooves, and are symmetrically provided in The first end surface 11. Each of the first coupling grooves 20 has an inner end 22 closer to the center of the rope sheave 10 and a communicating end 24 closer to the outer circumference of the rope sheave 10. The communicating end 24 communicates with the first rope groove 14; a positioning recess 25. Located at the inner end 22 of each of the first coupling grooves 20, the outer diameter of each of the positioning recesses 25 is greater than the groove width of each of the first coupling grooves 20;

The configuration and arrangement of the pair of second coupling grooves 30 are the same as those of the two first coupling grooves 20. The two second coupling grooves 30 are symmetrically recessed on the second end surface 12 of the sheave 10, for example, as shown in FIG. 2, the two first coupling grooves 20 are also arc-shaped grooves, and are symmetrically provided on the The second end surface 12. Similarly, each of the second coupling grooves 30 has an inner end 32 closer to the center of the rope sheave 10 and a communicating end 34 closer to the outer circumference of the rope sheave 10, and the communicating end 24 is in communication with the second rope groove 15; The positioning recesses 35 are provided at the inner ends 32 of each of the first coupling grooves 30, and the outer diameter of each of the positioning recesses 35 is larger than the groove width of each of the first coupling grooves 30.

As shown in FIGS. 1 and 2, the positions of the two first coupling grooves 20 on the first end surface 11 are exactly the same as the positions of the two second coupling grooves 30 on the second end surface 12. A two-axis through hole 16 penetrates the first end surface and the second end surface of the sheave along the axial direction of the sheave 10, and one of the through holes 16 is connected to the first coupling groove 20 on one side (for example, the left side) of the sheave. The inner end 22 of the second coupling groove 30 and the inner end 32 of the second coupling groove 30 are used to form the positioning recesses 25, 35 of the two coupling grooves 20, 30; the other through hole 16 communicates with the other side of the sheave (for example, the right side). The inner end 22 of a first coupling groove 20 and the inner end 32 of the other second coupling groove 30 form the positioning recesses 25 and 35 of the two coupling grooves 20 and 30. Each through hole 16 is like the positioning recesses 25 and 35 that communicate with the corresponding first coupling groove 20 and the second coupling groove 30.

Each end surface 11, 12 of the rope wheel 10 is provided with two coupling grooves for the installation of the two ropes 40, 42. Preferably, the rope is a steel rope to withstand tension. One end of each rope 40 or 42 is provided with a head 44 whose outer diameter is larger than the diameter of the rope.

Please refer to Figure 3, the two ropes 40, 42 are detachably combined with the sheave 10, and are wound in the two rope grooves 14, 15 respectively, as shown in Figures 3 and 4, and in the form of If the direction prevails, the first rope 40 can be moved from the first end surface 11 of the rope sheave 10 into the first coupling groove 20 on the left side of the rope sheave, and the head 44 of the rope 40 can be moved into and clamped in the coupling groove. The positioning recess 25 is used to wind the cable body of the first rope 40 in the first rope groove 14 from the connecting end 24 of the coupling groove 20 in a clockwise direction.

The second rope 42 is shown in FIGS. 3 and 5, and the second end surface 12 of the rope sheave 10 is moved into the second coupling groove 30 on the right side of the rope sheave, and the head 44 of the rope 42 is moved into and locked. Abutting against the positioning recess 35 of the coupling groove, the cable body of the second rope 42 is wound in the second rope groove 14 from the connecting end 34 of the coupling groove 30 in a counterclockwise direction. Thereby, the two ropes 40 and 42 are connected to the sheave 10 and are wound in the two rope grooves 14 and 15 respectively. The heads 44 of the two ropes 40, 42 are stuck in the positioning recesses 25, 35, and will not be separated from the coupling grooves 20, 30, so that the two ropes 40, 42 can bear the tension, and the sheave 10 will be affected by the tension. Rotate to form a pulling pulley.

Please refer to FIG. 6, the two ropes 40, 42 can be coupled to the other two coupling grooves 20, 30 of the sheave 10, and the first rope 40 is moved from the first end surface 11 of the sheave 10 into the right side of the rope sheave. In the first coupling groove 20, the head 44 of the rope 40 is moved into and clamped against the positioning recess 25 of the coupling groove, and the cable body of the first rope 40 is reversed from the connecting end 24 of the coupling groove 20. It winds in the first rope groove 14 in the clockwise direction.

The second rope 42 is moved from the second end surface 12 of the rope sheave 10 into the second coupling groove 30 on the left side of the rope sheave, and the head 44 of the rope 42 is moved into and clamped against the positioning recess 35 of the coupling groove. Then, the cable body of the second rope 42 is wound clockwise in the second rope groove 14 from the connecting end 34 of the coupling groove 30. Thereby, the two ropes 40 and 42 are connected to the other two coupling grooves 20 and 30 of the sheave 10 and are respectively wound in the two rope grooves 14 and 15. The head 44 of the two ropes 40, 42 is stuck in the positioning recesses 25, 35, and will not leave the coupling grooves 20, 30.

The two ropes 40, 42 are moved into and out of the first coupling groove 20 and the second coupling groove 30, so that they can be combined with or separated from the rope pulley 10, and the ropes are easy to assemble and unload.

It is understandable that the two ropes 40, 42 can be connected to the first coupling groove 20 and the second coupling groove 30 on the same side, and are wound around the two rope grooves 14, 15 in the same clockwise direction, for example, The two ropes 40, 42 are connected to the first coupling groove 20 and the second coupling groove 30 on the right side, and are both wound around the two rope grooves 14, 15 counterclockwise.

The sheave 10 is pivotally connected to a wheel seat 50, the wheel seat 50 has two side-by-side brackets 52; the wheel center of the sheave 10 is pivoted to the wheel seat 50 with a pivot 54 so as to be rotatable, and Located between the two brackets 52. The wheel center of the sheave 10 of this embodiment is provided with a shaft hole 101, as shown in Fig. 4; a bearing 17 is provided at the center of an end surface (for example, the first end surface 11) of the sheave 10 to align with the shaft hole 101; A non-circular insertion hole 18 (for example, a four-corner hole) is provided on the other end surface (for example, the second end surface 12) of the sheave, and is aligned with the shaft hole 101.

A shaft 60 is provided with a non-circular inserting post 62 at one end, and the inserting post 62 is inserted into the insertion hole 18 of the sheave 10. The pivot 54 is a long screw in this embodiment, one end of which is passed through the two brackets 52, the bearing 17 of the sheave 10, and the shaft hole 101, and is screwed to the shaft 60, so that the rope The wheel 10 is pivoted on the wheel base 50 and the shaft 60 is fixedly connected to the sheave 10. By the insertion of the pin 62 and the socket 18, when the sheave 10 rotates, the shaft 60 rotates with the sheave.

In addition, a first pin hole 19 is provided in the sheave along the axial direction of the sheave 10; a second pin hole 56 is provided in the two brackets or at least one bracket of the wheel seat; and a positioning pin 70 can be Insert the first pin hole 19 and the second pin hole 56. When the sheave 10 is to be positioned, the positioning pin 70 is inserted into the two pin holes 19, 56, as shown in Fig. 8, to fix the sheave. Pull out the positioning pin 70, as shown in Figure 7, the sheave 10 will return to the rotatable state.

The two-way sheave provided by this creation can connect two ropes, and can quickly and conveniently remove the rope or combine the rope with the sheave.

Furthermore, the two ropes can be combined with different coupling grooves of the sheave according to the needs of use, and the winding direction of the ropes around the sheave can be changed.

In addition, from the foregoing description of the loading and unloading ropes 40 and 42 and FIG. 7, it can be seen that the design of this invention can quickly load and unload and replace the rope without disassembling the sheave 10, providing convenience in use.

The above-disclosed examples only illustrate the features of this creation, not limitations, and any equivalent modifications made by this creation should be regarded as the scope of protection of this creation.

10: Two-way sheave 101: Shaft hole 11: The first end face 12: The second end face 14: The first rope groove 15: second rope groove 16: through hole 17: Bearing 18: jack 19: The first pin hole 20: The first joint groove 22: inner end 24: Connecting end 25: Positioning recessed 30: The second joint groove 32: inner end 34: Connecting end 35: Positioning recessed 40, 42: rope 44: head 50: wheel seat 52: bracket 54: pivot 56: second pin hole 60: shaft 62: post 70: positioning pin

The purpose, features and effects of this creation can be understood from the description and drawings of the following preferred embodiments, among which: Figure 1 is a perspective view of a two-way sheave of a preferred embodiment of the invention. Figure 2 is a perspective view from another angle of the two-way sheave of a preferred embodiment of the invention. Figure 3 shows a perspective view of two ropes coupled to the two coupling grooves of the sheave. Fig. 4 is a cross-sectional view taken along line 4-4 of Fig. 3. Figure 5 is a cross-sectional view taken along line 5-5 of Figure 3; Figure 6 shows a perspective view of two ropes coupled to the other two coupling grooves of the sheave. Fig. 7 is a perspective view of a two-way sheave pivoted on a wheel seat of a preferred embodiment of the invention, and shows two ropes connecting the sheave. Fig. 8 is a perspective view of a preferred embodiment of the present invention where the two-way sheave is pivoted on a wheel seat from another angle. Fig. 9 is an exploded perspective view of Fig. 7; Fig. 10 is an exploded perspective view of Fig. 8.

10: Two-way sheave

11: The first end face

14: The first rope groove

15: second rope groove

16: through hole

17: Bearing

20: The first joint groove

22: inner end

24: Connecting end

25: Positioning recessed

30: The second joint groove

34: Connecting end

35: Positioning recessed

40, 42: rope

44: head

Claims (10)

A two-way sheave, the sheave has a circumferential surface, a first end surface and a second end surface on two sides, and includes: Two annular rope grooves, a first rope groove and a second rope groove, respectively, are provided on the circumferential surface of the rope wheel; A pair of first coupling grooves are recessed on the first end surface of the rope sheave, each of the first coupling grooves has an inner end and a communicating end, and the communicating end is connected to the first rope groove; a positioning recess, Set at the inner end of each of the first coupling grooves; A pair of second coupling grooves are recessed on the second end surface of the rope sheave, each of the second coupling grooves has an inner end and a communicating end, and the communicating end is connected to the second rope groove; a positioning recess, Set at the inner end of each of the second coupling grooves. The two-way sheave according to claim 1, wherein: the two first coupling grooves are symmetrically provided on the first end surface of the sheave; the two second coupling grooves are also symmetrically provided on the first end surface of the sheave Two end faces. The two-way sheave according to claim 2, wherein: the two first coupling grooves are both arc-shaped, and the two first coupling grooves are reverse arc-shaped; the two second coupling grooves are both arc-shaped, And the two second coupling grooves are in reverse arc shape. The two-way sheave according to claim 1 or 2 or 3, wherein: the position of the two first coupling grooves on the first end surface is the same as the position of the two second coupling grooves on the second end surface ; Two axial through holes, passing through the first and second end surfaces of the sheave along the axial direction of the sheave, one of the through holes is connected to the positioning recess of a first coupling groove at the same set position and a second The positioning recess of the coupling groove; the other through hole is connected with the positioning recess of the other first coupling groove and the positioning recess of the other second coupling groove located in the same setting position. The two-way sheave according to claim 1, further comprising: a first rope and a second rope, one end of each of the ropes is provided with a head, and the first rope is tied into the first coupling groove And surrounds the first rope groove, the head of the first rope is inserted into and locked in the positioning recess of the first coupling groove; the second rope groove is inserted into one of the second coupling grooves And surrounds the second rope groove, and the head of the second rope is inserted into and locked in the positioning recess of the second coupling groove. The two-way sheave according to claim 5, wherein: the outer diameter of each positioning recess is greater than the groove width of each coupling groove; the outer diameter of the head of each rope is greater than that of each The outer diameter of the rope. The two-way sheave according to claim 1 or 2 or 3 or 5 or 6 further includes: a wheel seat with two side-by-side brackets; the wheel center of the sheave is pivoted on the wheel seat, and Located between the two brackets. The two-way sheave according to claim 7, further comprising: a first pin hole arranged on the sheave along the axial direction of the sheave; a second pin hole arranged on the bracket of the wheel seat; The positioning pin can be detachably inserted into the first pin hole and the second pin hole. The two-way sheave according to claim 7, further comprising: a shaft, one end of which is connected to the first end surface or the second end surface of the sheave, and when the sheave rotates, the shaft and the sheave rotate together. The two-way sheave according to claim 9, wherein: a non-circular receptacle is provided at the center of the first end surface or the second end surface of the sheave; one end of the shaft is provided with a non-circular post, The pin is inserted into the jack of the sheave.

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