Dustproof thrust wheel for crawler belt

Abstract

The utility model discloses a dustproof thrust wheel for a crawler belt, and relates to the technical field of thrust wheels. The sealing device comprises a main shaft and further comprises a wheel body arranged outside the main shaft, a shaft sleeve is arranged between the middle position of the outer portion of the main shaft and the inner side of the wheel body, outer covers are arranged on the two sides of the outer portion of the main shaft, and floating sealing rubber rings are arranged on the inner sides of the outer covers. The stabilizing assemblies are arranged between the two sides of the inner side wall of the wheel body and the outer side of the outer cover, the outer cover is installed on the two sides of the inner portion of the wheel body, meanwhile, the stabilizing balls are installed between the inner side of the inner ball channel and the inner side of the outer ball channel in an embedded connection mode, and the stability of the wheel body rotating relative to the outer cover is guaranteed through the stabilizing balls in the advancing process of a crawler belt. Abrasion caused by extrusion of the outer cover due to uneven gap deflection during rotation of the wheel body is avoided, dust entering the thrust wheel due to the fact that the sealing effect is affected by damage of the floating sealing rubber ring is prevented, and therefore the effect that the structural safety of a sealing component is guaranteed while stable rotation of the thrust wheel is guaranteed is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of supporting wheel, especially is involved in dustproof supporting wheel for track. BACKGROUND

[0002] The supporting wheel for track is a heavy engineering machinery accessory for supporting the weight of excavators, bulldozers and other tracked engineering machinery to ensure the stable operation of the machinery, which can adapt to different terrain changes and ensure the smooth operation of heavy machinery in different terrains. In order to cope with complex working environment, technicians have developed a dustproof supporting wheel.

[0003] The utility model discloses a dustproof type supporting wheel for crawler crane, relates to supporting wheel technical field, including the wheel body, the inside both sides of wheel body all are provided with wheel shaft, the outer surface wall of wheel shaft is provided with the shaft sleeve, the both sides of wheel shaft all are connected with side cover, the one side of two side covers all is connected with the wrinkle connecting layer, the both sides of wheel body all are provided with rubber ring layer, the one side of two rubber ring layers all is provided with the expansion hole. The utility model discloses, through using the wrinkle connecting layer on the side cover, the circular ring type dust cover can be connected, the dust cover can isolate some silt dust, and the situation that silt dust enters the inside and causes abrasion is solved as far as possible, and the mechanical properties and service life of the supporting wheel are ensured to a certain extent. However, the gap between the outer cover and the supporting wheel body is unstable when the supporting wheel body rotates in the application process, which affects the stable rotation of the supporting wheel, and the internal dustproof floating seal rubber ring is easily squeezed and damaged. There is a technical problem that the rotating supporting wheel body cannot be further stabilized to protect the safety of the sealing rubber ring structure and ensure the dustproof performance of the supporting wheel. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a dustproof supporting wheel for track, 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 dustproof supporting wheel for track, which comprises a main shaft, and further comprises: a wheel body arranged outside the main shaft, a shaft sleeve arranged between the inner side of the wheel body and the middle position of the outer side of the main shaft, outer covers arranged on both sides of the outer side of the main shaft, a floating seal rubber ring arranged on the inner side of the outer cover, connecting pin holes arranged on both sides of the top of the main shaft, a pin shaft inserted between the inner side of the top of the outer cover and the connecting pin hole, an inner ball channel arranged on one side of the outer side of the outer cover, stable balls embedded in the inner ball channel, outer ball channels arranged on both sides of the inner side wall of the wheel body, and a sealing protection assembly arranged on the outer side of the outer cover.

[0007] Further, the inner and outer ball channels are annular, the stabilizing balls are spindle-shaped cylinders, and the stabilizing balls are uniformly distributed on the inner side of the inner ball channel.

[0008] Further, one end of the stabilizing balls is embedded into the inner side of the outer ball channel, and the stabilizing balls can roll between the inner sides of the outer and inner ball channels.

[0009] Further, one side of the outer cover is embedded into the two sides of the inner side of the wheel body, and the connecting pin holes are symmetrically arranged on the top of the main shaft.

[0010] Further, the sealing protection assembly comprises a connecting sleeve arranged on the outer side of the outer cover, a dust cover sleeved on the outer side of the connecting sleeve, a rotating handle arranged at the middle position of the outer side of the dust cover, and a sealing gasket arranged at the edge of the inner side of the dust cover.

[0011] Further, the outer side of the connecting sleeve is provided with external threads, the inner side wall of the dust cover is provided with internal threads matched with the external threads, and the sealing gasket is annular.

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

[0013] 1. The utility model discloses a stabilizing assembly arranged between the two sides of the inner side wall of the wheel body and the outer side of the outer cover, and the stabilizing balls are embedded and arranged between the inner sides of the inner and outer ball channels when the outer cover is installed into the two sides of the inner side of the wheel body. The stability of the wheel body relative to the outer cover is ensured during the travel of the track, the uneven extrusion of the outer cover caused by the gap deviation during the rotation of the wheel body is avoided, the wear of the outer cover is prevented, the damage of the floating sealing rubber ring is prevented, the sealing effect is ensured, the dust in the inner side of the track roller is prevented, and the effect of ensuring the stable rotation of the track roller and ensuring the safety of the sealing member structure is realized.

[0014] 2. The utility model discloses a sealing protection assembly arranged on the outer side of the outer cover. The dust cover is fixedly installed on the outer side of the connecting sleeve on the outer side of the outer cover through threaded connection during use, the threaded connection part is sealed by the annular sealing gasket, the water is prevented from entering the threaded connection part to cause rust and affect the normal disassembly of the dust cover, the dust in the inner side of the track roller is prevented from entering through the gap between the outer side of the outer cover and the main shaft, the dustproof performance of the track roller is further improved, and the use and maintenance cost of the track roller are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a frontal cross-sectional view of the present invention.

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Wheel body; 2. Outer cover; 3. Rotary handle; 4. Dust cover; 5. Main shaft; 6. Pin; 7. Bushing; 8. Floating seal rubber ring; 9. Stabilizing ball; 10. Connecting sleeve; 11. Outer ball track; 12. Sealing gasket; 13. Inner ball track; 14. Connecting pin hole. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figures 1-4 As shown, this utility model is a dustproof track roller for tracks, including a main shaft 5, and further including: a wheel body 1 disposed on the outside of the main shaft 5, a bushing 7 disposed between the middle position of the outside of the main shaft 5 and the inner side of the wheel body 1, an outer cover 2 disposed on both sides of the outside of the main shaft 5, one side of the outer cover 2 being embedded into the two sides inside the wheel body 1, a floating sealing ring 8 disposed on the inner side of the outer cover 2, the floating sealing ring 8 sealing the inside of the track roller for dust prevention, connecting pin holes 14 disposed on both sides of the top of the main shaft 5, the connecting pin holes 14 being symmetrically arranged on the top of the main shaft 5, a pin 6 being inserted between one side of the top of the outer cover 2 and the inside of the connecting pin hole 14, the outer cover 2 can be installed on both sides of the outside of the main shaft 5 by passing the pin 6 through the top of the outer cover 2 and inserting it into the connecting pin hole 14.

[0024] As a further implementation of this embodiment, such as Figures 1-4As shown, an annular inner ball track 13 is provided on one side of the outer cover 2. A stabilizing ball 9 is embedded inside the inner ball track 13. The stabilizing ball 9 is a spindle-shaped cylinder and is evenly distributed on the inner side of the inner ball track 13. An annular outer ball track 11 is provided on both sides of the inner sidewall of the wheel body 1. One outer end of the stabilizing ball 9 is embedded in the inner side of the outer ball track 11. The stabilizing ball 9 can roll between the inner side of the outer ball track 11 and the inner side of the inner ball track 13. During the movement of the track, the stabilizing ball 9 ensures the stability of the wheel body 1 when rotating relative to the outer cover 2, avoids uneven pressure on the outer cover 2 due to uneven gap when the wheel body 1 rotates, and prevents damage to the floating seal ring 8 from affecting the sealing effect and causing dust to enter the support roller. Thus, the effect of ensuring the stable rotation of the support roller and ensuring the structural safety of the sealing component is achieved.

[0025] The outer cover 2 is installed inside the wheel body 1 on both sides, and the stabilizing ball 9 is embedded between the inner ball track 13 and the outer ball track 11. During the movement of the track, the stabilizing ball 9 ensures that the wheel body 1 is more stable when rotating relative to the outer cover 2, avoids uneven pressure on the outer cover 2 due to uneven gap when the wheel body 1 rotates, and prevents damage to the floating seal ring 8, which affects the sealing effect.

[0026] As a further implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a sealing and protective assembly is provided on the outer side of the outer cover 2. The sealing and protective assembly includes a connecting sleeve 10, which is located on the outer side of the outer cover 2. A dust cover 4 is fitted onto the outer side of the connecting sleeve 10. A rotating handle 3 is located at the middle position of the outer side of the dust cover 4. An external thread is provided on the outer side of the connecting sleeve 10. An internal thread that matches the external thread is provided on the inner side wall of the dust cover 4. The dust cover 4 is installed and fixed on the outer side of the connecting sleeve 10 on the outer side of the outer cover 2 by means of threaded connection, so as to achieve the purpose of installing it outside the gap between the outer cover 2 and the main shaft 5. An annular sealing gasket 12 is provided on the inner edge of the dust cover 4, so as to effectively prevent dust from entering the inside of the track roller from the gap between the outer side of the connection between the outer cover 2 and the main shaft 5. The annular sealing gasket 12 is used to seal the threaded connection, so as to prevent water from entering the thread and causing corrosion, affecting the normal disassembly of the dust cover 4. This further improves the dustproof performance of the track track roller and reduces the use and maintenance cost of the track roller.

[0027] When in use, the dust cover 4 is installed and fixed to the outside of the connecting sleeve 10 set on the outside of the outer cover 2 by threaded connection. The dust cover 4 is used to prevent dust from entering the support roller from the gap on the outside of the connection between the outer cover 2 and the main shaft 5. At the same time, the threaded connection is sealed by the annular sealing gasket 12.

[0028] Working principle: When using the dustproof track roller, the outer cover 2 is installed on both sides of the main shaft 5 by inserting the pin 6 through the top of the outer cover 2 and into the connecting pin hole 14. While installing the outer cover 2 into the inside of the wheel body 1 on both sides, the stabilizing balls 9 are embedded between the inner ball track 13 and the outer ball track 11. The dust cover 4 is fixed to the outside of the connecting sleeve 10 set on the outside of the outer cover 2 by threaded connection. During the movement of the track, the floating seal rubber ring 8 is used to seal the inside of the track roller for dust prevention. At the same time, the stabilizing balls 9 roll to ensure that the wheel body 1 is more stable when rotating relative to the outer cover 2. This avoids uneven pressure on the outer cover 2 caused by the gap when the wheel body 1 rotates, and prevents damage to the floating seal rubber ring 8 from affecting the sealing effect. The dust cover 4 is used to prevent dust from entering the inside of the track roller from the gap on the outside of the connection between the outer cover 2 and the main shaft 5. At the same time, the annular sealing gasket 12 is used to seal the threaded connection, making the track roller safer, more sealed and stable when rotating.

[0029] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A dustproof track roller, including a main shaft (5), characterized in that, Also includes: A wheel body (1) is provided on the outside of the main shaft (5). A bushing (7) is provided between the middle position of the outside of the main shaft (5) and the inner side of the wheel body (1). An outer cover (2) is provided on both sides of the outside of the main shaft (5). A floating seal ring (8) is provided on the inner side of the outer cover (2). A connecting pin hole (14) is provided on both sides of the top of the main shaft (5). A pin (6) is inserted between one side of the top of the outer cover (2) and the inside of the connecting pin hole (14). An inner ball track (13) is provided on one side of the outside of the outer cover (2). A stabilizing ball (9) is embedded inside the inner ball track (13). An outer ball track (11) is provided on both sides of the inner sidewall of the wheel body (1). A sealing and protective component is provided on the outside of the outer cover (2).

2. The dustproof track roller for tracks according to claim 1, characterized in that, The inner ball track (13) and the outer ball track (11) are annular, and the stabilizing ball (9) is a spindle-shaped cylinder. The stabilizing ball (9) is evenly distributed on the inner side of the inner ball track (13).

3. The dustproof track roller for tracks according to claim 1, characterized in that, One outer end of the stabilizing ball (9) is inserted into the inner side of the outer ball track (11), and the stabilizing ball (9) can roll between the inner side of the outer ball track (11) and the inner side of the inner ball track (13).

4. The dustproof track roller for tracks according to claim 1, characterized in that, One side of the outer cover (2) is fitted into both sides of the inside of the wheel body (1), and the connecting pin holes (14) are symmetrically arranged on the top of the main shaft (5).

5. The dustproof track roller for tracks according to claim 1, characterized in that, The sealing and protective assembly includes a connecting sleeve (10), which is disposed on the outside of the outer cover (2). A dust cover (4) is fitted over the outside of the connecting sleeve (10). A rotating handle (3) is provided at the middle position of the outer side of the dust cover (4). A sealing gasket (12) is provided at the inner edge of the dust cover (4).

6. The dustproof track roller for tracks according to claim 5, characterized in that, The outer side of the connecting sleeve (10) is provided with an external thread, the inner sidewall of the dust cover (4) is provided with an internal thread that matches the external thread, and the sealing gasket (12) is annular.

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