Hoist guide rope structure

Abstract

The utility model provides a hoist guide rope structure, and belongs to the technical field of machinery. The problem that an existing rope guide structure is poor in stability is solved. The hoist guide rope structure comprises a sleeve and a guide ring coaxially fixed to the rear end of the sleeve, a wire outlet is formed in the side wall of the rear end of the sleeve, the guide ring is located on the rear side of the wire outlet, a circle of installation holes are formed in the side wall of the guide ring in a radial penetrating mode, a ball is arranged in each installation hole, and a base sliding in the axial direction of the installation hole is arranged in each installation hole. A concave cavity is formed in the side, close to the inner hole of the guide ring, of the base, the axial sections of the inner wall of the concave cavity and the bottom wall of the mounting hole are in circular arc shapes matched with the ball, and the two sides of the ball are attached to the inner wall of the corresponding concave cavity and the bottom wall of the corresponding mounting hole respectively; a spring enabling the corresponding base to tend to slide towards the inner hole of the guide ring is further arranged in the mounting hole, and under the action of the spring, the ball partially extends out of the corresponding mounting hole. The hoist rope guide structure is stable in operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a hoist, in particular to a hoist guide rope structure. Background Art

[0002] Electric hoist is a special lifting equipment installed on overhead crane and gantry crane. Electric hoist has the characteristics of small size, light weight, simple operation and easy use. It is used in industrial and mining enterprises, warehouses, docks and other places.

[0003] The guide rope structure is an important part of the electric hoist. Its structure is as disclosed in the Chinese Patent Library, an intelligent hoist guide rope assembly (application number: 202221440118.2), which includes a bracket and a drum horizontally rotatably arranged on the bracket. The drum is covered with a sleeve, and one end of the sleeve is provided with a circular arc-shaped wire outlet hole. The drum is also covered with a guide ring, the guide ring and the sleeve are fixedly connected, and the wire outlet hole is located between the guide ring and the other end of the sleeve; a spiral groove coaxial with the drum is formed on the outer wall of the drum, and a circle of balls matching the spiral groove are rotatably installed on the guide ring, and the circle of balls is evenly distributed along the circumference of the guide ring, and the balls are arranged on the outer wall of the drum. One side extends into the spiral groove; a guide mechanism is provided between the other end of the sleeve and the bracket, and under the action of the guide mechanism, the sleeve translates axially; the inner diameters of the sleeve and the guide ring are both larger than the outer diameter of the reel; a mounting hole for placing balls is radially penetrated on the side wall of the guide ring, the number of mounting holes and balls is the same and the positions correspond one to one, and one side of the ball extends out of the mounting hole and is in the spiral groove, the inner wall of the mounting hole close to one end of the reel is a spherical surface matching the ball, and a limiting piece is fixed in the mounting hole to press the outer wall of the ball on the spherical surface; the limiting piece is a stud, the stud is screwed into the mounting hole, and one end of the stud is pressed on the ball.

[0004] In the above-mentioned rope guide assembly, one end of the stud is pressed on the ball for limiting. When the bottom wall of the spiral groove has a protrusion due to the processing accuracy, it will hinder the rolling of the ball and cause the sleeve to slide and get stuck, affecting the rope output or rope retraction of the electric hoist. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a hoist guide rope structure with stable operation.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a hoist guide rope structure, including a sleeve and a guide ring coaxially fixed to the rear end of the sleeve, a wire outlet is provided on the side wall of the rear end of the sleeve, and the guide ring is located on the rear side of the wire outlet, a circle of mounting holes radially penetrates the side wall of the guide ring, and a ball is provided in each mounting hole, characterized in that each mounting hole is provided with a base that slides axially along the mounting hole, a concave cavity is provided on the side of the base close to the inner hole of the guide ring, the axial cross-sections of the inner wall of the concave cavity and the bottom wall of the mounting hole are both arc-shaped matching the ball, and the two sides of the ball are respectively attached to the corresponding inner wall of the concave cavity and the corresponding bottom wall of the mounting hole; a spring is also provided in the mounting hole to make the corresponding base have a sliding tendency toward the inner hole of the guide ring, and under the action of the spring, the ball part extends out of the corresponding mounting hole.

[0007] Both sides of the ball are in contact with the bottom wall of the mounting hole and the inner wall of the cavity through the circumferential surface, so that rolling friction is formed between the ball and the base, effectively delaying the wear between the two; at the same time, the base is supported by a spring, so that the ball can move axially slightly during the rolling process, so as to effectively avoid obstruction of the rolling of the ball, thereby effectively enhancing the operating stability of the hoist guide rope structure.

[0008] In the above-mentioned hoist guide rope structure, a limiting member is fixed in each installation hole, and both ends of the spring are respectively pressed between the corresponding limiting member and the corresponding base, which has the advantages of simple structure and convenient installation.

[0009] In the above-mentioned hoist guide rope structure, the limiter is screwed into the corresponding mounting hole, so that the spring compression amount can be adjusted by rotating the limiter, which is not only convenient for adjustment, but also allows the ball to always obtain better support, further extending the life of the guide rope structure.

[0010] In the above-mentioned gourd guide rope structure, the base includes a base body and a guide rod coaxially arranged with the corresponding mounting hole, the above-mentioned concave cavity is opened on one side of the base body, and the guide rod is formed on the other side of the corresponding base body; the above-mentioned spring is sleeved on the corresponding guide rod to play a telescopic guiding role, so that the guide rope structure can operate more stably.

[0011] In the above-mentioned hoist guide rope structure, the limiting member is annular, the end of the guide rod away from the corresponding base is inserted into the limiting member, and the guide rod and the corresponding limiting member are in circumferential surface contact cooperation to ensure stable axial sliding of the base.

[0012] The limit member is used to support the limit spring and also to guide the sliding movement of the base. In the present application, the limit member has a dual purpose, which simplifies the structure and facilitates assembly.

[0013] In the above-mentioned hoist guide rope structure, the outer end of the limiting member extends out of the mounting hole.

[0014] In the above-mentioned hoist guide rope structure, a circle of polygonal holes is formed on the outer end surface of the limiter, and the polygonal holes extend axially along the limiter. When in use, the polygonal holes cooperate with tools to facilitate rotating the limiter to adjust the spring compression.

[0015] In the above-mentioned hoist guide rope structure, the base is hollow to reduce weight and material input.

[0016] Compared with the prior art, the hoist guide rope structure has the following advantages:

[0017] 1. Both sides of the ball are in contact with the bottom wall of the mounting hole and the inner wall of the concave cavity through the circumferential surface, so that rolling friction is formed between the ball and the base, effectively delaying the wear between the two; at the same time, the base is supported by a spring, so that the ball can move axially in a small range during the rolling process, so as to effectively avoid the rolling of the ball and effectively enhance the operation stability of the hoist guide rope structure.

[0018] 2. The limit member is used to support the limit spring and also to guide the sliding movement of the base. In this application, the limit member has a dual purpose, which simplifies the structure and facilitates assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the guide rope structure of the hoist.

[0020] Figure 2 It is a cross-sectional schematic diagram of the guide rope structure of the hoist.

[0021] Figure 3 yes Figure 2 A magnified schematic diagram of center A.

[0022] In the figure, 1, sleeve; 1a, wire outlet; 2, guide ring; 2a, mounting hole; 3, screw; 4, guide shaft; 5, ball; 6, base; 6a, cavity; 6b, base; 6c, guide rod; 7, spring; 8, limit piece; 8a, polygonal hole. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] like Figure 1 As shown, the hoist guide rope structure includes a sleeve 1 and a guide ring 2 coaxially fixed to the rear end of the sleeve 1, and in an actual product, the guide ring 2 and the sleeve 1 are fixed together by a circle of screws.

[0025] in,

[0026] The rear end side wall of the sleeve 1 is provided with a wire outlet 1a, which is in an arc shape coaxial with the sleeve 1, and the guide ring 2 is located behind the wire outlet 1a. A guide shaft is fixed horizontally at the front end of the sleeve 1, and the axis of the guide shaft extends along the axial direction of the guide barrel, which is used for sliding guidance of the sleeve 1.

[0027] like Figure 2 and Figure 3 As shown, a circle of mounting holes 2a are radially penetrated on the side wall of the guide ring 2, and a ball 5 is arranged in each mounting hole 2a. A base 6 is arranged in each mounting hole 2a to slide axially along the mounting hole 2a, and at this time, the ball 5 is located between the bottom wall of the mounting hole 2a and the corresponding base 6. A concave cavity 6a is provided on the side of the base 6 close to the inner hole of the guide ring 2, and the axial cross-sections of the inner wall of the concave cavity 6a and the bottom wall of the mounting hole 2a are both in an arc shape matching the ball 5, and the two sides of the ball 5 are respectively attached to the inner wall of the corresponding concave cavity 6a and the bottom wall of the corresponding mounting hole 2a. A spring 7 is also arranged in the mounting hole 2a to make the corresponding base 6 have a sliding tendency toward the inner hole of the guide ring 2, and under the action of the spring 7, the ball 5 partially extends out of the corresponding mounting hole 2a.

[0028] Both sides of the ball 5 are in contact with the bottom wall of the mounting hole 2a and the inner wall of the cavity 6a through the circumferential surface, so that rolling friction is formed between the ball 5 and the base 6, effectively delaying the wear between the two; at the same time, the base 6 is supported by the spring 7, so that the ball 5 can move axially slightly during the rolling process, so as to effectively avoid the rolling of the ball 5, thereby effectively enhancing the operating stability of the hoist guide rope structure.

[0029] In this embodiment,

[0030] The base 6 is an integrated structure, and includes a base 6b and a guide rod 6c coaxially arranged with the corresponding mounting hole 2a, wherein the above-mentioned cavity 6a is opened on one side of the base 6b, and the guide rod 6c is formed on the other side of the corresponding base 6b.

[0031] The spring 7 is installed as follows: the outer diameter of the base 6b is larger than the outer diameter of the guide rod 6c; a limiting member 8 is fixed in each mounting hole 2a, the spring 7 is sleeved on the corresponding guide rod 6c, and the two ends of the spring 7 are respectively pressed against the corresponding limiting member 8 and the corresponding base 6b, which has the advantages of simple structure and easy installation.

[0032] The limit member 8 can be detachably fixed in the corresponding mounting hole 2a, and preferably the limit member 8 is screwed in the corresponding mounting hole 2a, so that the compression amount of the spring 7 can be adjusted by rotating the limit member 8, which is not only convenient for adjustment, but also allows the ball 5 to always obtain better support, further extending the life of the guide rope structure.

[0033] Further, the outer end of the stopper 8 extends out of the mounting hole 2a, and a circle of polygonal holes 8a are formed on the outer end surface of the stopper 8, and the polygonal holes 8a extend axially along the stopper 8. When in use, the polygonal holes 8a cooperate with a tool to facilitate the rotation of the stopper 8 to adjust the compression amount of the spring 7.

[0034] like Figure 3 As shown, the limit member 8 is ring-shaped, and the end of the guide rod 6c away from the corresponding base 6b is inserted into the limit member 8, and the guide rod 6c and the corresponding limit member 8 adopt a circumferential surface contact fit to stably realize the sliding connection between the base 6 and the guide ring 2. At this time, the limit member 8 is used to support the limit spring 7 and to guide the sliding of the base 6. In this application, the limit member 8 has a dual-purpose effect, which simplifies the structure and facilitates assembly.

[0035] In actual products, the base 6 is hollow to reduce weight and material input.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A hoist guide rope structure, comprising a sleeve (1) and a guide ring (2) coaxially fixed to the rear end of the sleeve (1), a wire outlet (1a) being provided on the rear end side wall of the sleeve (1), and the guide ring (2) being located at the rear side of the wire outlet (1a), a circle of mounting holes (2a) being radially penetrated on the side wall of the guide ring (2), and a round ball (5) being provided in each mounting hole (2a), characterized in that: Each mounting hole (2a) is provided with a base (6) that slides axially along the mounting hole (2a); a concave cavity (6a) is provided on the side of the base (6) close to the inner hole of the guide ring (2); the inner wall of the concave cavity (6a) and the bottom wall of the mounting hole (2a) have axial cross-sections that are arc-shaped and match the sphere (5); and the two sides of the sphere (5) are respectively attached to the inner wall of the corresponding concave cavity (6a) and the bottom wall of the corresponding mounting hole (2a); a spring (7) is also provided in the mounting hole (2a) to enable the corresponding base (6) to have a sliding tendency toward the inner hole of the guide ring (2); and under the action of the spring (7), the sphere (5) partially extends out of the corresponding mounting hole (2a).

2. The hoist guide rope structure according to claim 1, characterized in that: A limiting member (8) is fixed in each mounting hole (2a), and two ends of the spring (7) are respectively pressed between the corresponding limiting member (8) and the corresponding base (6).

3. The hoist guide rope structure according to claim 2, characterized in that: The limiting member (8) is screwed into the corresponding mounting hole (2a).

4. The hoist guide rope structure according to claim 2 or 3, characterized in that: The base (6) comprises a base body (6b) and a guide rod (6c) coaxially arranged with the corresponding mounting hole (2a); the base body (6b) is provided with the above-mentioned cavity (6a) on one side, and the guide rod (6c) is formed on the other side of the corresponding base body (6b); and the above-mentioned spring (7) is sleeved on the corresponding guide rod (6c).

5. The hoist guide rope structure according to claim 4, characterized in that: The limiting member (8) is ring-shaped, and one end of the guide rod (6c) away from the corresponding base body (6b) is inserted into the limiting member (8), and a circumferential surface contact fit is adopted between the guide rod (6c) and the corresponding limiting member (8).

6. The hoist guide rope structure according to claim 2 or 3, characterized in that: The outer end of the limiting member (8) extends out of the mounting hole (2a).

7. The hoist guide rope structure according to claim 6, characterized in that: A circle of polygonal holes (8a) is provided on the outer end surface of the limiting member (8), and the polygonal holes (8a) extend axially along the limiting member (8).

8. The hoist guide rope structure according to claim 4, characterized in that: The base (6) is hollow.

Images