Guide wheel

Abstract

The utility model discloses a guide wheel, and relates to the technical field of excavators. The guide wheel comprises a guide wheel body and further comprises a central shaft penetrating through the middle position in the guide wheel body, and shaft sleeves are nested on the outer sides of the central shaft at the two ends of the middle position in the guide wheel body. Through the arrangement of the through holes, the heat conduction copper pipes and the heat dissipation fins, the heat dissipation surface area of the guide wheel body is increased through the through holes during use, and the air circulation of the inner end and the outer end during rotation of the guide wheel body is improved; meanwhile, heat generated by relative rotating friction between the guiding wheel body and the crawler belt and between the guiding wheel body and the center shaft is absorbed through the heat conduction copper pipes and dissipated outwards through the heat dissipation fins, and therefore effective heat transfer and heat dissipation are achieved; the service life of the guide wheel is prevented from being shortened due to overheat friction when the guide wheel guides the crawler to move, and the normal work of the excavator is even influenced due to breakage and damage of the guide wheel body or the center shaft.

Description

TECHNICAL FIELD

[0001] The utility model belongs to excavator technical field, especially, it relates to a guide wheel. BACKGROUND

[0002] The guide wheel is one of the key components for controlling the moving direction of the whole machine and supporting the weight of the whole machine in the excavator, which plays an important role in improving the running stability and balance of the excavator, reducing the damage to the track, improving the driving efficiency, increasing the flexibility, and preventing the track from deviating and derailing.

[0003] The utility model discloses a guide wheel, including the wheel body, the middle part of wheel body is inserted and is connected with the rolling bearing, the inner side of rolling bearing is fixedly connected with the rotation column, both sides of wheel body are all set up circular slot, both sides of wheel body top are all set up oil injection pipeline, the inside annular of rolling bearing is set up and divides the oil pipeline, the utility model discloses a guide wheel, can improve the bearing of wheel body through the reinforcing rib that sets up, prevents the guide wheel from appearing fracture under the condition of excessive load, can be convenient for the guide wheel inside to add the skid oil through the oil injection pipeline and the oil pipeline that sets up, and skid oil is dispersed even in the raceway in rolling bearing simultaneously, thereby improves the rotation efficiency of guide wheel, the U type mounting bracket, connecting rod and spade blade that set up can loosen the soil that adheres to the both sides of guide wheel, and the soil is convenient for the drop, thereby improves the rotation efficiency of guide wheel. However, the excavator guide wheel is subjected to a large load during work, and the guide wheel and the track and the bearing position are prone to excessive friction and overheating due to improper maintenance or violent operation. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a guide wheel, which can effectively solve the problems of the prior art.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] The utility model discloses a guide wheel, which comprises a guide wheel body and a center shaft penetrating the middle position inside the guide wheel body, an axle sleeve nested on the outer side of the center shaft at both ends of the middle position inside the guide wheel body, an oil seal nested on the outer part of the center shaft at both ends of the guide wheel body, a support frame sleeved on both ends of the center shaft, a pin shaft inserted between the top side of the support frame and the inner end of the center shaft, a through hole arranged in the guide wheel body, a heat-conducting copper pipe arranged at the position close to the middle of both ends of the guide wheel body, a heat dissipation fin arranged on the outer side of the heat-conducting copper pipe, and a cleaning assembly arranged between the inner side of the support frame and the outer side of the guide wheel body.

[0007] Further, the through holes are arranged in six groups and are arranged in a ring shape at equal intervals in the inside of the guide wheel body.

[0008] Further, the heat-conducting copper pipes are arranged in a ring shape and are semi-buried at the two ends of the guide wheel body, and the heat-dissipating fins are arranged in a fan shape at equal intervals on the outside of the heat-conducting copper pipes.

[0009] Further, the supporting frames are parallel to the two ends of the guide wheel body and are symmetrically arranged about the vertical center of the guide wheel body.

[0010] Further, the cleaning assembly comprises a fixing seat arranged on the inside of the supporting frame, the inside of the fixing seat is provided with a positioning frame, and the inside of the positioning frame is provided with an outer edge scraper.

[0011] Further, the positioning frame is arranged in a stepped shape and is shaped to match the shape of the outer edge of the guide wheel body.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model discloses a guide wheel body heat dissipation device, which comprises a guide wheel body, a supporting frame and a cleaning assembly, wherein the guide wheel body is arranged on the supporting frame, the guide wheel body is provided with a through hole, a heat-conducting copper pipe and a heat-dissipating fin, the supporting frame is provided with a through hole, and the heat-conducting copper pipe is arranged in the through hole.

[0014] 2. The utility model discloses a guide wheel body heat dissipation device, which comprises a guide wheel body, a supporting frame and a cleaning assembly, wherein the guide wheel body is arranged on the supporting frame, the guide wheel body is provided with a through hole, a heat-conducting copper pipe and a heat-dissipating fin, the supporting frame is provided with a through hole, and the heat-conducting copper pipe is arranged in the through hole. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0016] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is the overhead structure schematic view of the utility model;

[0018] Figure 3 It is the explosion schematic view of the utility model;

[0019] Figure 4 It is the Figure 1 The enlarged structure schematic view of A place in the middle.

[0020] In the drawing, the component list represented by each mark is as follows:

[0021] 1, guide wheel main body, 2, support frame, 3, through hole, 4, heat conduction copper pipe, 5, fixed base, 6, positioning frame, 7, outer edge scraper, 8, pin shaft, 9, shaft sleeve, 10, oil seal, 11, center shaft, 12, heat dissipation fin. Specific implementation

[0022] The technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment.

[0023] Please refer to Figures 1-4 The utility model discloses a guide wheel, including guide wheel main body 1, still include: the centre axle 11 is passed through at the middle position in guide wheel main body 1, the centre axle 11 outside both ends at the middle position in guide wheel main body 1 is nested with the shaft sleeve 9, the centre axle 11 outside both ends of guide wheel main body 1 is nested with the oil seal 10, prevent lubricating oil leakage and prevent the impurity such as external dust, silt and so on from entering guide wheel inside by oil seal 10, the both ends of centre axle 11 are sleeved with support frame 2, support frame 2 is parallel to both ends of guide wheel main body 1, and support frame 2 is about the vertical center of guide wheel main body 1 symmetrically set, and the one side of support frame 2 top and the one end inside centre axle 11 are inserted with pin shaft 8, and centre axle 11 is connected with support frame 2 firmly using pin shaft 8, and guide wheel main body 1 is fixed and supported by support frame 2.

[0024] As further implementation of the embodiment, as Figures 1-4As shown, the inside of the guide wheel body 1 is provided with through holes 3, which are arranged in six groups and are arranged in a ring shape at equal intervals in the inside of the guide wheel body 1. The through holes 3 improve the heat dissipation surface area of the guide wheel body 1 and improve the air flow between the inside and outside of the guide wheel body 1 when rotating. The heat-conducting copper pipes 4 are semi-buried at both ends of the guide wheel body 1. The heat-conducting copper pipes 4 are arranged in a ring shape near the middle of the two ends of the guide wheel body 1. The heat-conducting copper pipes 4 absorb the heat generated by the relative rotation friction between the guide wheel body 1 and the track and between the guide wheel body 1 and the center shaft 11. The outside of the heat-conducting copper pipes 4 is provided with fan-shaped heat dissipation fins 12 arranged at equal intervals. The heat dissipation fins 12 dissipate the heat absorbed by the heat-conducting copper pipes 4 outward, thereby effectively transferring and dissipating heat. This avoids excessive friction when the guide wheel guides the track to move, which reduces the service life of the guide wheel and even causes the guide wheel body 1 or the center shaft 11 to break and damage, affecting the normal work of the excavator.

[0025] When the guide wheel is in operation, the through holes 3 improve the heat dissipation surface area of the guide wheel body 1 and make the air flow between the inside and outside of the guide wheel body 1 better when rotating. The heat-conducting copper pipes 4 absorb the heat generated by the relative rotation friction between the guide wheel body 1 and the track and between the guide wheel body 1 and the center shaft 11, and dissipate the heat outward through the heat dissipation fins 12.

[0026] As a further embodiment of the present embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , a cleaning assembly is arranged between the inside of the support frame 2 and the outside of the guide wheel body 1. The cleaning assembly includes a fixed seat 5 arranged on the inside of the support frame 2. The inside of the fixed seat 5 is provided with a stepped positioning frame 6. The positioning frame 6 is positioned and stably installed by the fixed seat 5. The shape of the positioning frame 6 matches the shape of the outer edge of the guide wheel body 1. The inside of the positioning frame 6 is provided with an outer edge scraper 7. When the guide wheel rotates, the relatively stationary outer edge scraper 7 cleans the dirt and other objects attached to the outer edge of the guide wheel body 1, ensuring that the guide wheel body 1 directly contacts the track to play a normal guiding role and preventing the track from deviating or off the track.

[0027] When in use, the positioning frame 6 is positioned and installed between the inside of the support frame 2 and the outer edge of the guide wheel body 1 by the fixed seat 5, thereby positioning and installing the outer edge scraper 7 arranged on the inside of the positioning frame 6. When the guide wheel rotates, the relatively stationary outer edge scraper 7 cleans the dirt and other objects attached to the outer edge of the guide wheel body 1.

[0028] Working principle: when using the guide wheel, the guide wheel excavator tensioning oil cylinder, tensioning spring is connected through the support frame 2, and the positioning frame 6 is positioned and installed between the inner side of the support frame 2 and the outer edge of the guide wheel body 1 through the fixing seat 5, so that the outer edge scraper 7 arranged in the inner side of the positioning frame 6 is positioned and installed, the guide wheel is used when the excavator works, so that the track can rotate correctly, prevent the track from running off or off the track, so as to ensure that the excavator can travel stably on various terrains, the heat dissipation surface area of the guide wheel body 1 is improved through the through hole 3, and the air flow of the inner and outer ends of the guide wheel body 1 is better when rotating, at the same time, the heat generated by the relative rotation friction between the guide wheel body 1 and the track and the guide wheel body 1 and the center shaft 11 is absorbed by the heat-conducting copper pipe 4, and is dissipated outward through the heat dissipation fin 12, so as to avoid the damage of the guide wheel due to overheating, at the same time, the outer edge scraper 7 which is static in the relative rotation of the guide wheel is used to clean the soil and other objects attached to the outer edge of the guide wheel body 1, so as to ensure that the guide wheel body 1 and the track are in direct contact and play a normal guiding role.

[0029] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement of the technical scheme recorded in the above-mentioned embodiments, belongs to the protection scope of the present application.

Claims

1. A guide wheel comprising a guide wheel body (1), characterized in that Also include: The center shaft (11) is penetrated through the middle position inside the guide wheel body (1), the outer side of the center shaft (11) at both ends of the middle position inside the guide wheel body (1) is nested with the shaft sleeve (9), the outer part of the center shaft (11) at both ends of the guide wheel body (1) is nested with the oil seal (10), both ends of the center shaft (11) are sleeved with the support frame (2), the pin shaft (8) is inserted between one side of the top of the support frame (2) and one end inside the center shaft (11), the inside of the guide wheel body (1) is provided with the through hole (3), the position close to the middle of both ends of the guide wheel body (1) is provided with the heat dissipation copper pipe (4), the outer side of the heat dissipation copper pipe (4) is provided with the heat dissipation fin (12), the inside of the support frame (2) and the outside of the guide wheel body (1) are provided with the cleaning assembly.

2. A guide wheel according to claim 1, wherein The through hole (3) is provided with six groups, the through hole (3) is arranged in a ring shape at equal intervals inside the guide wheel body (1).

3. A guide wheel according to claim 1, wherein The heat dissipation copper pipe (4) is in a ring shape, and the heat dissipation copper pipe (4) is in a half-buried mode at both ends of the guide wheel body (1), the heat dissipation fin (12) is in a fan shape, and the heat dissipation fin (12) is arranged at equal intervals outside the heat dissipation copper pipe (4).

4. A guide wheel according to claim 1, wherein The support frame (2) is parallel to both ends of the guide wheel body (1), and the support frame (2) is symmetrically arranged about the vertical center of the guide wheel body (1).

5. A guide wheel according to claim 1, wherein The cleaning assembly comprises a fixed seat (5), the fixed seat (5) is arranged inside the support frame (2), the inner side of the fixed seat (5) is provided with a positioning frame (6), and the inner side of the positioning frame (6) is provided with an outer edge scraper (7).

6. A guide wheel according to claim 5, wherein The positioning frame (6) is in a stepped shape, and the shape of the positioning frame (6) is matched with the shape of the outer edge of the guide wheel body (1).

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