Pulley assembly

Abstract

The utility model discloses a pulley assembly which comprises a hoisting seat, a wheel carrier is arranged at the bottom of the hoisting seat, the wheel carrier comprises an upper top plate and a lower bottom plate, two wheel side plates which are arranged in a bilateral symmetry mode are arranged between the lower bottom plate and the upper top plate, a guide wheel is connected between the wheel side plates in a rotating mode, and a rope outlet hole is formed in the lower bottom plate. The guide wheel is in transmission connection with a rope with one end penetrating out of the rope outlet hole, a shaft hole formed in the lower bottom plate is formed in one side of the rope outlet hole, an adjusting shaft moving axially and rotating circumferentially is arranged in the shaft hole, a limiting part is arranged at the upper end of the adjusting shaft, a hand wheel is arranged at the lower end of the adjusting shaft, and a cleaning groove allowing the rope to be embedded in is formed in the periphery of the side face of the hand wheel. The cleaning groove extends in the axial direction of the hand wheel, the two ends of the cleaning groove are connected with the outside, and a brush is arranged in the cleaning groove. The pulley assembly has the characteristics of pollution prevention and stable and reliable transmission, and is complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, and more specifically, to a pulley assembly. Background Art

[0002] The rope used for transmission on the hoisting pulley assembly is exposed to the outside for a long time, and the surface is easily stained. The solid stains will form a convex structure as the contaminants accumulate, so that when the rope passes through the guide wheel for the next transmission, the convex position will form a bump, causing the rope to fall off the pulley, affecting the transmission and the overall effect is not good. Based on this, the utility model proposes a pulley assembly. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a pulley assembly which has the characteristics of anti-pollution and stable and reliable transmission.

[0004] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.

[0005] The utility model is further configured as follows: a front tongue plate is provided on the upper top plate, a rope entry hole is opened on the front tongue plate, and the other end of the rope is inserted into the rope entry hole.

[0006] The utility model is further configured as follows: the adjusting shaft is sleeved with an elastic member with one end abutting against the limiting portion and the other end abutting against the lower bottom plate.

[0007] The utility model is further configured as follows: the elastic member is a compression spring.

[0008] The utility model is further configured as follows: a plurality of adjacent positioning grooves with equal angles are arranged on the end surface of the lower base plate facing the hand wheel, wherein a positioning protrusion arranged on the hand wheel is embedded in one of the positioning grooves.

[0009] The utility model is further configured such that the interval angles between two adjacent cleaning grooves are equal.

[0010] The present utility model is further configured such that: the brush is mounted on the bottom wall and / or the side wall of the cleaning groove.

[0011] To sum up, the present utility model has the following beneficial effects: the pulley assembly of the present utility model is provided with a rotatable handwheel at the rope outlet position. The side surface of the handwheel is circumferentially provided with cleaning grooves, and brushes are arranged in the cleaning grooves to brush the surface of the rope passing through the transmission, so as to remove the contaminated stains, avoid the formation of stain accumulation on the surface of the rope, prevent the rope from being polluted, ensure stable and reliable transmission, and has a complete overall function and strong practicability. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the partial structural schematic diagram of the present utility model. Detailed Embodiment

[0014] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred implementation schemes of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that these descriptions are only for further explaining the features and advantages of the present utility model, rather than limiting the patent requirements of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0015] The present utility model will be further described below in conjunction with the drawings and preferred embodiments.

[0016] Embodiment 1

[0017] Refer to Figure 1 and Figure 2 As shown, a pulley assembly according to this embodiment includes a lifting seat 1. A wheel frame 2 is provided at the bottom of the lifting seat 1. The wheel frame 2 includes an upper top plate 21 and a lower bottom plate 22. Two wheel side plates 23 arranged symmetrically left and right are provided between the lower bottom plate 22 and the upper top plate 21. A guide wheel 3 is rotatably connected between the wheel side plates 23. An outlet hole 24 is formed in the lower bottom plate 22. A rope 4 is drivingly connected to the guide wheel 3 and one end of the rope passes through the outlet hole. A shaft hole 25 is also formed in the lower bottom plate on one side of the outlet hole 24. An adjusting shaft 5 that moves axially and rotates circumferentially is provided in the shaft hole 25. A limiting portion 6 is provided at the upper end of the adjusting shaft 5, and a handwheel 7 is provided at the lower end. The side surface of the handwheel 7 is circumferentially provided with cleaning grooves 8 for the rope to be embedded. The cleaning grooves 8 extend along the axial direction of the handwheel 7 and both ends are connected to the outside. Brushes 9 are provided in the cleaning grooves 8.

[0018] Further, a front tongue plate 26 is provided on the upper top plate 21, and a rope inlet hole 27 is formed in the front tongue plate 26. The other end of the rope 4 passes through the rope inlet hole 27.

[0019] Further, an elastic member 10 with one end abutted against the limiting portion and the other end abutted against the lower bottom plate is sleeved on the adjusting shaft 5; the elastic member 10 is a compression spring.

[0020] Further, the included angles between adjacent two cleaning grooves 8 are equal.

[0021] Further, the brush 9 is mounted on the bottom wall and the side wall of the cleaning groove 8.

[0022] In this embodiment, the rope 4 passing through the rope inlet hole 27 is driven to pass through the guide pulley 3, and then passes out through the rope outlet hole 24. The passing-out rope 4 also passes through a cleaning groove 8 on the side of the hand wheel 7 and is wiped by the brush 9 in the cleaning groove 8 to remove surface stains and prevent accumulation.

[0023] Among them, by rotating the hand wheel 7, the cleaning groove 8 used for cleaning the rope 4 can be changed. The function of the hand wheel 7 carrying multiple cleaning grooves 8 is realized, and when the brush 9 in a certain groove is used until it does not have a good cleaning effect, the hand wheel 7 can be rotated to implement switching.

[0024] Among them, by sleeving an elastic member 10 with one end abutted against the limiting portion and the other end abutted against the lower bottom plate on the adjusting shaft 5, the tensioning and positioning effect on the hand wheel 7 after adjustment is achieved.

[0025] Embodiment 2

[0026] See Figure 1 and Figure 2 As shown, a pulley assembly involved in this embodiment is further provided on the basis of Embodiment 1. A plurality of positioning grooves 11 with equal included angles between adjacent ones are circumferentially arranged on the end surface of the lower bottom plate 22 facing the hand wheel, and a positioning protrusion 12 provided on the hand wheel is embedded in one of the positioning grooves 11.

[0027] In this embodiment, through the arrangement of the positioning groove 11 cooperating with the positioning protrusion 12, the circumferential positioning effect on the hand wheel 7 after the position adjustment is achieved, and the positioning position is accurate.

[0028] For the pulley assembly involved in the present invention, by providing a rotatable hand wheel at the rope outlet position, cleaning grooves are circumferentially arranged on the side of the hand wheel, and brushes are arranged in the cleaning grooves to wipe the surface of the passing rope, so as to remove the contaminated stains, avoid the formation of stain accumulation on the rope surface, prevent the rope from being polluted, ensure stable and reliable transmission, have a complete overall function, and strong practicability.

[0029] Unless otherwise specified, in this utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the actual shown orientation or positional relationship. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the orientation or positional relationship in this utility model are only for exemplary illustration and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the embodiments and according to the specific circumstances.

[0030] Unless otherwise clearly defined and limited, in this utility model, if there are terms such as "set", "connected" and "connected", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0031] The preferred specific embodiments of this utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and changes based on the concept of this utility model without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of this utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A pulley assembly, comprising a hoisting seat, characterized in that: A wheel frame is provided at the bottom of the lifting seat. The wheel frame includes an upper top plate and a lower bottom plate. There are two wheel side plates arranged symmetrically left and right between the lower bottom plate and the upper top plate. A guiding wheel is rotatably connected between the wheel side plates. A rope outlet hole is formed in the lower bottom plate. A rope is drivingly connected to the guiding wheel and one end of the rope passes through the rope outlet hole. A shaft hole is also formed in the lower bottom plate on one side of the rope outlet hole. An adjusting shaft that moves axially and rotates circumferentially is provided in the shaft hole. A limiting portion is provided at the upper end of the adjusting shaft, and a hand wheel is provided at the lower end. Cleaning grooves for the rope to be embedded are circumferentially arranged on the side surface of the hand wheel. The cleaning grooves extend along the axial direction of the hand wheel and both ends are connected to the outside. A brush is provided in the cleaning grooves.

2. The pulley assembly according to claim 1, wherein: A front tongue plate is provided on the upper top plate, and a rope inlet hole is formed in the front tongue plate. The other end of the rope passes through the rope inlet hole.

3. The pulley assembly according to claim 1 or 2, characterized in that: An elastic member is sleeved on the adjusting shaft, with one end abutted against the limiting portion and the other end abutted against the lower bottom plate.

4. The pulley assembly according to claim 3, wherein: The elastic member is a compression spring.

5. The pulley assembly according to claim 4, wherein: A plurality of positioning grooves with equal included angles between adjacent ones are circumferentially arranged on the end surface of the lower bottom plate facing the hand wheel. A positioning protrusion provided on the hand wheel is embedded in one of the positioning grooves.

6. The pulley assembly according to claim 1, wherein: The included angles between adjacent two cleaning grooves are equal.

7. The pulley assembly according to claim 1, wherein: The brush is mounted on the bottom wall and / or the side wall of the cleaning groove.

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