Excavator guide wheel capable of preventing chain from falling off

Abstract

The utility model discloses an excavator guide wheel capable of preventing a chain from falling off. The excavator guide wheel comprises a wheel body, a center hole, a through hole, reinforcing ribs, flanges and an anti-falling mechanism. Through the wheel body, the center hole is formed in the middle end of the wheel body, the flange is arranged at the outer middle end of the wheel body, the anti-falling mechanisms are arranged at the front end and the rear end of the flange respectively, each anti-falling mechanism comprises the movable groove, the rotating ring, the convex teeth, the shifting piece, the moving groove and other assemblies, movable recovery of the convex teeth can be achieved under mutual cooperation, and the flange is assisted in limiting an excavator crawler belt; secondary limiting of the crawler belt can be achieved, the crawler belt can be effectively prevented from being separated from the guide wheel, disassembly and maintenance of the guide wheel can be facilitated by recovering the convex teeth, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of excavator accessories, in particular to an anti-chain-off excavator guide wheel. Background Art

[0002] An excavator, also known as an excavator or backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the supporting surface and load them into transport vehicles or unload them to a stockpile.

[0003] According to the walking mode, excavators can be divided into crawler excavators and wheeled excavators. The guide wheel is one of the important components in the walking system of the crawler bulldozer, which plays the role of guiding the crawler chain to change direction.

[0004] Most of the existing guide wheels are connected to the crawler track only through a set of flanges on the outside to limit the crawler track. The connection stability with the crawler track is poor, which may cause the crawler chain to fall off and separate from the guide wheel, affecting the normal operation of the excavator, and has certain limitations. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an anti-chain-off excavator guide wheel.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-chain-off excavator guide wheel, comprising a wheel body, a center hole which can be connected to the outside is provided at the middle end of the wheel body, a plurality of groups of through holes and reinforcing ribs are staggered at the middle ends of the front and rear faces of the wheel body, a flange is provided at the middle end of the wheel body, and an anti-off mechanism is provided at the front and rear ends of the flange;

[0007] The anti-slip mechanism includes a movable groove, a rotating ring, a convex tooth, a toggle piece and a movable groove. The front and rear ends of the wheel body are each provided with a group of movable grooves, and the two groups of movable grooves are each provided with a group of rotating rings on the side close to each other. The outer sides of the rotating rings are connected to a plurality of groups of convex teeth, the top end of the rotating ring is provided with a group of toggle pieces, and the top end of the inner side of the movable groove is provided with a movable groove corresponding to the toggle piece.

[0008] Preferably, the middle end of the movable groove is provided with a positioning shaft corresponding to the number of convex teeth.

[0009] Preferably, the middle ends of the protruding teeth are all provided with limiting grooves corresponding to the positioning shafts.

[0010] Preferably, the bottom end of the toggle member extends to the outside through the movable groove, and a group of fixing bolts are connected to the outer middle end.

[0011] Preferably, the front and rear surfaces of the wheel body are both provided with internal threaded holes corresponding to the fixing bolts.

[0012] Preferably, the inner end of the movable groove is connected to the outside.

[0013] Preferably, the outer periphery of the protruding teeth is flush with the outer periphery of the flange after being unfolded.

[0014] Beneficial effects of the utility model:

[0015] The utility model uses a wheel body, a center hole is provided at the middle end of the wheel body, a flange is provided at the outer middle end, and a group of anti-slipping mechanisms are provided at the front and rear ends of the flange. The anti-slipping mechanism includes components such as a movable groove, a rotating ring, a convex tooth, a toggle piece and a movable groove. The convex tooth can be recovered by mutual cooperation, and the auxiliary flange can limit the crawler track of the excavator, so as to realize the secondary limit of the crawler track, which can effectively avoid the separation of the crawler track and the guide wheel, and the convex tooth can be recovered to facilitate the disassembly and maintenance of the guide wheel, and the utility model has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the front view of the internal structure of the movable groove of the utility model;

[0019] Figure 4 This is a schematic diagram of the left view of the internal structure of the movable groove of the utility model;

[0020] Figure 5 It is a schematic diagram of the local structure of the convex tooth recovery of the utility model.

[0021] Among them: wheel body-1, center hole-2, through hole-3, reinforcing rib-4, flange-5, anti-slip mechanism-6, movable groove-61, rotating ring-62, convex tooth-63, toggle piece-64, moving groove-65, positioning shaft-611, limiting groove-631, fixing bolt-641. DETAILED DESCRIPTION

[0022] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0023] See also Figure 1-2 The utility model provides an anti-chain-off guide wheel for an excavator, comprising a wheel body 1, a center hole 2 which can be connected to the outside is provided at the middle end of the wheel body 1, a plurality of groups of through holes 3 and reinforcing ribs 4 are staggeredly provided at the middle ends of the front and rear faces of the wheel body 1, the strength of the wheel body 1 can be improved, and the deadweight can be reduced, a flange 5 is provided at the outer middle end of the wheel body 1, which can cooperate with the crawler to prevent it from falling off, and also includes an anti-off mechanism 6 arranged at the front and rear ends of the flange 5.

[0024] See also Figure 3-5The utility model provides an anti-stripping excavator guide wheel, wherein the anti-stripping mechanism 6 comprises a movable groove 61, a rotating ring 62, a convex tooth 63, a toggle member 64 and a movable groove 65. A group of movable grooves 61 are provided at the front and rear ends of the wheel body 1, and the inner ends of the movable grooves 61 are connected to the outside to prevent impurities from accumulating in the movable grooves 61. A group of rotating rings 62 are provided on the sides close to each other in the two groups of movable grooves 61, and the outer sides of the rotating rings 62 are rotatably connected with a plurality of groups of convex teeth 63. A group of toggle members 64 are provided at the top of the rotating ring 62, and a movable groove 65 corresponding to the toggle member 64 is provided at the top of the inner side of the movable groove 61. The toggle member 64 can be moved to drive the rotating ring 62 to rotate, thereby driving the convex tooth 63 to move. After the convex tooth 63 is unfolded, the outer periphery is flush with the outer periphery of the flange 5, which can improve the limiting effect with the crawler and prevent the crawler from falling off.

[0025] The movable groove 61 is provided with a positioning shaft 611 at the middle end thereof corresponding to the number of convex teeth 63, and the convex teeth 63 are provided with a limiting groove 631 corresponding to the positioning shaft 611 at the middle end thereof. The positioning shaft 611 passes through the limiting groove 631, and the convex teeth 63 move around the positioning shaft 611. The bottom end of the toggle member 64 extends to the outside through the movable groove 65, and a group of fixing bolts 641 are connected to the outer middle end. The wheel body 1 is provided with internal threaded holes corresponding to the fixing bolts 641 at the front and rear ends thereof, and can be connected to the wheel body 1 through the fixing bolts 641, so as to fix the rotating ring 62.

[0026] Here’s how it works:

[0027] The utility model is placed in a suitable position for use. When in use, the fixing bolt 641 can be rotated to remove the fixing of the toggle member 64, and then the toggle member 64 is moved to the other end in the movable groove 65, driving the rotating ring 62 to rotate, and driving the convex tooth 63 to rotate around the positioning shaft 611 and return to the movable groove 61. At this time, the wheel body 1 can be connected to the excavator through the center hole 2, and the flange 5 is initially connected and limited to the inner side of the crawler track. Then, the toggle member 64 can be toggled again to drive the convex tooth 63 to reset, and the flange 5 is used to limit the crawler track for the second time. Finally, the toggle member 64 is fixed to the wheel body 1 by the fixing bolt 641 to complete the limiting fixation of the rotating ring 62 and the convex tooth 63.

[0028] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-chain-off excavator guide wheel, comprising a wheel body (1), wherein the middle end of the wheel body (1) is provided with a center hole (2) that can be connected to the outside, the middle ends of the front and rear surfaces of the wheel body (1) are staggered with a plurality of groups of through holes (3) and reinforcing ribs (4), and the outer middle end of the wheel body (1) is provided with a flange (5); Features: It also includes an anti-slip mechanism (6) arranged at the front and rear ends of the flange (5); The anti-slip mechanism (6) comprises a movable groove (61), a rotating ring (62), a convex tooth (63), a toggle member (64) and a movable groove (65). The front and rear ends of the wheel body (1) are each provided with a group of movable grooves (61). A group of rotating rings (62) are each provided on one side close to each other in the two groups of movable grooves (61). The outer sides of the rotating rings (62) are each connected with a plurality of groups of convex teeth (63). A group of toggle members (64) are provided at the top end inside the rotating rings (62), and a movable groove (65) corresponding to the toggle member (64) is provided at the top end inside the movable groove (61).

2. The anti-chain-off excavator guide wheel according to claim 1, characterized in that: The middle end of the movable groove (61) is provided with a positioning shaft (611) corresponding to the number of the protruding teeth (63).

3. The anti-chain-off excavator guide wheel according to claim 2, characterized in that: The middle ends of the protruding teeth (63) are each provided with a limiting groove (631) corresponding to the positioning shaft (611).

4. The anti-chain-off excavator guide wheel according to claim 1, characterized in that: The bottom end of the toggle member (64) extends to the outside through the moving groove (65), and a group of fixing bolts (641) are connected to the outer middle end.

5. The anti-chain-off excavator guide wheel according to claim 4, characterized in that: The front and rear surfaces of the wheel body (1) are both provided with internal threaded holes corresponding to the fixing bolts (641).

6. The anti-chain-off excavator guide wheel according to claim 1, characterized in that: The inner end of the movable groove (61) is communicated with the outside.

7. The anti-chain-off excavator guide wheel according to claim 1, characterized in that: When the protruding teeth (63) are unfolded, their peripheries are flush with the periphery of the flange (5).

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