Crawler belt limiting device of side dumping type excavator

Abstract

The utility model discloses a track limiting device of a side dumping type excavator, which belongs to the technical field of track limiting and comprises a guide wheel rotatably mounted on a rack of a traveling part of the excavator, and a traveling track is mounted on the guide wheel in a limiting manner; the left end and the right end of the excavator walking part rack are fixedly provided with reference frames located on the outer sides of the guide wheels and the crawler belts, the reference frames are provided with two sets of outer limiting bases and inner limiting bases which can slide up and down respectively, and the outer limiting bases and the inner limiting bases are internally provided with a plurality of steel balls capable of moving universally. The two sets of outer limiting seats and inner limiting seats abut against the side faces of the guide wheels and the side faces of the tracks through steel balls correspondingly. The track limiting device can support the guide wheel and the side face of the track at the same time, and the situation that the track falls off when the excavator works in a severe working environment is avoided; and secondly, two groups of outer limiting seats and inner limiting seats of the crawler belt limiting device can slide up and down for adjustment, so that the crawler belt limiting device can adapt to installation of excavators of different models, and is higher in application flexibility.

Description

TECHNICAL FIELD

[0001] The utility model relates to caterpillar track limiting technical field, concretely is a caterpillar track limiting device of side -tipping excavator. BACKGROUND

[0002] In daily use, the guide wheel and the caterpillar track will be frequently worn, when the wear is too large, the walking part of the side -tipping excavator is easy to cause the caterpillar track to fall off when turning or walking, plus the bad working environment, the side -tipping excavator often operates in the coal mud nest or the water accumulation nest in the well, and the ground in the coal mud nest or the water accumulation nest is uneven, at this time, the risk of caterpillar track falling off is also intensified, and once the caterpillar track falls off, the equipment cannot be normally used, and a large amount of time and manpower is needed to restore the caterpillar track, which affects the normal development of work. CONTENT OF UTILITY MODEL

[0003] The utility model solves the technical problem to provide a caterpillar track limiting device of side -tipping excavator, the caterpillar track limiting device can support the guide wheel and the caterpillar track side face simultaneously, which avoids the caterpillar track falling off caused by the side -tipping excavator in the bad working environment.

[0004] The technical scheme of the utility model is realized as follows:

[0005] A caterpillar track limiting device of side -tipping excavator, comprising a guide wheel rotatably installed on the walking part frame of the excavator, and a walking caterpillar track is limitingly installed on the guide wheel;

[0006] The left and right ends of the walking part frame of the excavator are both fixedly installed with a reference frame located outside the guide wheel and the caterpillar track, and two groups of outer limiting seats and inner limiting seats capable of sliding up and down are installed on the reference frame;

[0007] A plurality of steel balls capable of universal movement are installed in the outer limiting seats and the inner limiting seats, and the two groups of outer limiting seats and inner limiting seats respectively abut against the side face of the guide wheel and the side face of the caterpillar track through the steel balls.

[0008] By adopting the above scheme, the caterpillar track limiting device can support the guide wheel and the caterpillar track side face simultaneously, which avoids the caterpillar track falling off caused by the side -tipping excavator in the bad working environment, and secondly, the two groups of outer limiting seats and inner limiting seats of the caterpillar track limiting device can slide up and down to adjust, which can adapt to the installation of different models of excavators, and the application flexibility is higher.

[0009] As a preferred implementation manner of the caterpillar track limiting device of side -tipping excavator, a limiting blind hole equal in number to the steel balls is formed in the inner part of the outer limiting seat, a limiting through hole equal in number to the steel balls is formed in the inner part of the inner limiting seat, the steel balls protrude from the limiting through hole and can universally move between the limiting blind hole and the limiting through hole.

[0010] Adopting the above scheme, in order to realize the limiting of the steel ball, the steel ball is placed between the limiting blind hole and the limiting through hole, at this time the limiting blind hole and the limiting through hole do not clamp the steel ball completely, at this time the steel ball can be universal movement between the limiting blind hole and the limiting through hole.

[0011] As a preferred embodiment of the track limiting device of the side discharge excavator, the edge of the limiting blind hole and the limiting through hole in contact with the steel ball is provided with a smooth chamfer or a round corner.

[0012] Adopting the above scheme, in order to reduce the friction between the steel ball and the limiting blind hole and the limiting through hole, the edge in contact is chamfered or rounded, at this time the abrasion of the steel ball during movement can be reduced.

[0013] As a preferred embodiment of the track limiting device of the side discharge excavator, the center of the limiting blind hole is further provided with a lubricating hole, and the lubricating hole is filled with solid lubricating oil such as butter.

[0014] Adopting the above scheme, in order to facilitate the lubrication of the steel ball, the fixed lubricating oil is stored in the lubricating hole, and the universal movement of the steel ball is in contact with the fixed lubricating oil, which can realize real-time lubrication of the entire surface of the steel ball.

[0015] As a preferred embodiment of the track limiting device of the side discharge excavator, the two sides of the reference frame are provided with guide grooves, and the front and back of the guide grooves are provided with a plurality of positioning screw holes arranged in linear array.

[0016] The two sides of the outer limiting seat and the inner limiting seat are located in the guide groove, and the two sides of the outer limiting seat and the inner limiting seat are provided with positioning through holes;

[0017] The positioning screw hole is provided with a positioning bolt penetrating and cooperating with the positioning through hole.

[0018] Adopting the above scheme, in order to facilitate the adjustment of the position of the outer limiting seat and the inner limiting seat, the outer limiting seat and the inner limiting seat are slid along the guide groove, and then the two are fixed on the reference frame through the positioning bolt, which can adapt to the installation of excavators of different models, and has higher application flexibility.

[0019] As a preferred embodiment of the track limiting device of the side discharge excavator, the upper surface of the excavator walking part frame is provided with a reference groove matched with the bottom of the reference frame, and the reference frame is sunk into the reference groove and then welded and fixed with the excavator walking part frame.

[0020] Adopting the above scheme, in order to further strengthen the fixation of the reference frame, the reference frame is first sunk into the reference groove, at this time the contact area between the reference frame and the excavator walking part frame is larger, and the stability and reliability of the two after being welded and fixed will be higher.

[0021] The beneficial effects of the present application are as follows:

[0022] 1. The track limiting device can support the guide wheel and the track side surface at the same time, avoiding the track falling off caused by the excavator in a harsh working environment.

[0023] 2. In order to limit the steel ball, the steel ball is placed between the limiting blind hole and the limiting through hole, at this time the limiting blind hole and the limiting through hole do not clamp the steel ball completely, and the steel ball can be universally movable between the limiting blind hole and the limiting through hole.

[0024] 3. In order to reduce the friction between the steel ball and the limiting blind hole and the limiting through hole, a smooth chamfer or a round corner is formed on the edge of the contact, at this time the abrasion of the steel ball during movement can be reduced.

[0025] 4. In order to facilitate the lubrication of the steel ball, the fixed lubricating oil is stored in the lubricating hole, and the universally movable steel ball is in contact with the fixed lubricating oil, so that the entire surface of the steel ball can be lubricated in real time.

[0026] 5. In order to facilitate the adjustment of the position of the outer limiting seat and the inner limiting seat, the outer limiting seat and the inner limiting seat are slid along the guide groove, and then the two are fixed on the reference frame through the positioning bolt, which can adapt to the installation of excavators of different models, and has higher application flexibility.

[0027] 6. In order to further strengthen the fixation of the reference frame, the reference frame is first sunk into the reference groove, at this time the contact area between the reference frame and the walking part frame of the excavator is larger, and the stability and reliability of the two after being welded and fixed will be higher. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 is a perspective view of the present application installed on the walking part frame of the excavator;

[0030] Figure 2 is a perspective view of the present application Figure 1 ;

[0031] Figure 3 is a perspective view of the present application Figure 2 ;

[0032] Figure 4 is Figure 2A perspective view of the middle external limit seat and the internal limit seat;

[0033] Figure 5 To show Figure 4 A perspective view of the middle internal structure;

[0034] Figure 6 To Figure 1 An enlarged view of A in the middle.

[0035] In the figure, the marks are as follows: 1-excavator walking part frame; 2-guide wheel; 3-track; 4-reference frame; 5-external limit seat; 6-internal limit seat; 7-steel ball; 8-limit blind hole; 9-limit through hole; 10-lubricating hole; 11-guide groove; 12-positioning screw hole; 13-positioning through hole; 14-positioning bolt; 15-reference groove. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0037] As Figures 1 to 5 shown, a track limiting device of a side-dumping excavator comprises a guide wheel 2 rotatably installed on an excavator walking part frame 1, and a walking track 3 is limitingly installed on the guide wheel 2; reference frames 4 are fixedly installed on the left and right ends of the excavator walking part frame 1 and are located outside the guide wheel 2 and the track 3; two groups of external limit seats 5 and internal limit seats 6 that can slide up and down are installed on the reference frames 4; a plurality of steel balls 7 that can universally move are installed in the external limit seats 5 and the internal limit seats 6; and the two groups of external limit seats 5 and internal limit seats 6 respectively abut against the side surface of the guide wheel 2 and the side surface of the track 3 through the steel balls 7. The track limiting device can simultaneously support the side surface of the guide wheel 2 and the side surface of the track 3, thereby avoiding the track 3 from falling off due to the excavator in a harsh working environment.

[0038] As Figures 4 to 5 shown, a plurality of limit blind holes 8 equal in number to the steel balls 7 are formed in the internal limit seat 5, a plurality of limit through holes 9 equal in number to the steel balls 7 are formed in the internal limit seat 6, and the steel balls 7 protrude from the limit through holes 9 and can universally move between the limit blind holes 8 and the limit through holes 9. In order to limit the steel balls 7, the steel balls 7 are placed between the limit blind holes 8 and the limit through holes 9, at this time, the limit blind holes 8 and the limit through holes 9 do not completely clamp the steel balls 7, and at this time, the steel balls 7 can universally move between the limit blind holes 8 and the limit through holes 9.

[0039] AsFigure 5 As shown in the figure, the edge of the limiting blind hole 8 and the limiting through hole 9 in contact with the steel ball 7 is provided with a smooth chamfer or a round corner. In order to reduce the friction between the steel ball 7 and the limiting blind hole 8 and the limiting through hole 9, a smooth chamfer or a round corner is formed on the edge in contact, at this time the wear of the steel ball 7 during movement can be reduced.

[0040] As shown in the figure, Figure 5 As shown in the figure, the center of the limiting blind hole 8 is also provided with a lubricating hole 10, and the lubricating hole 10 is filled with solid lubricating oil such as butter. In order to facilitate the lubrication of the steel ball 7, the fixed lubricating oil is stored in the lubricating hole 10, and the universal movable steel ball 7 is in contact with the fixed lubricating oil, which can realize real-time lubrication of the entire surface of the steel ball 7.

[0041] As shown in the figure, Figures 2 to 3 As shown in the figure, the two sides of the reference frame 4 are provided with guide grooves 11, and the front and back of the guide grooves 11 are provided with a plurality of positioning screw holes 12 arranged in linear array; the two sides of the outer limiting seat 5 and the inner limiting seat 6 are located in the guide groove 11, and the two sides of the outer limiting seat 5 and the inner limiting seat 6 are provided with a positioning through hole 13; the positioning screw hole 12 is equipped with a positioning bolt 14 which penetrates and cooperates with the positioning through hole 13. In order to facilitate the adjustment of the position of the outer limiting seat 5 and the inner limiting seat 6, the outer limiting seat 5 and the inner limiting seat 6 are slid along the guide groove 11, and then the two are fixed on the reference frame 4 through the positioning bolt 14, which can adapt to the installation of excavators of different models, and the application flexibility is higher.

[0042] As shown in the figure, Figure 6 As shown in the figure, the upper surface of the excavator walking part frame 1 is provided with a reference groove 15 matched with the bottom of the reference frame 4, and the reference frame 4 is sunk into the reference groove 15 and then welded and fixed with the excavator walking part frame 1. In order to further strengthen the fixation of the reference frame 4, the reference frame 4 is first sunk into the reference groove 15, at this time the contact area between the reference frame 4 and the excavator walking part frame 1 is larger, and the stability and reliability of the two after welding and fixing will be higher.

[0043] The working principle of the utility model:

[0044] In application, the reference frame 4 is sunk into the reference groove 15 and then welded and fixed with the excavator walking part frame 1; subsequently, according to the positions of the guide wheel 2 and the track 3, the two groups of outer limiting seat 5 and inner limiting seat 6 are slid along the guide groove 11 to the positions close to the guide wheel 2 and the track 3, and then the two are fixed on the reference frame 4 through the positioning bolt 14, at this time the two groups of outer limiting seat 5 and inner limiting seat 6 respectively abut against the side surface of the guide wheel 2 and the side surface of the track 3 through the steel ball 7, the side surface of the guide wheel 2 and the track 3 are supported through the steel ball 7, and the track 3 falling off caused by the excavator in harsh working environment is avoided.

[0045] In use, if the steel ball 7 needs to be replaced due to wear, the outer limiting seat 5 can be easily disassembled by loosening the positioning bolt 14, and the steel ball 7 inside can be taken out for replacement.

[0046] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A side-unloading excavator track limiting device, comprising a guide wheel (2) rotatably mounted on an excavator walking part frame (1), and a walking track (3) limitedly mounted on the guide wheel (2). characterized in that Both left and right ends of the excavator walking part frame (1) are fixedly mounted with reference frames (4) located outside the guide wheel (2) and the track (3), and the reference frames (4) are mounted with two groups of outer limiting seats (5) and inner limiting seats (6) capable of sliding up and down. A plurality of steel balls (7) capable of universal movement are mounted in the outer limiting seats (5) and the inner limiting seats (6), and the two groups of outer limiting seats (5) and inner limiting seats (6) respectively abut against the side surface of the guide wheel (2) and the side surface of the track (3) through the steel balls (7).

2. The side-dumping excavator track limiting device of claim 1, wherein: A plurality of limiting blind holes (8) equal in number to the steel balls (7) are formed in the inner part of the outer limiting seat (5), and a plurality of limiting through holes (9) equal in number to the steel balls (7) are formed in the inner part of the inner limiting seat (6), and the steel balls (7) protrude from the limiting through holes (9) and are capable of universal movement between the limiting blind holes (8) and the limiting through holes (9).

3. The track limiting device for a side-dumping shovel as set forth in claim 2, wherein: Smooth chamfers or round corners are arranged on the edges of the limiting blind holes (8) and the limiting through holes (9) in contact with the steel balls (7).

4. The track limiting device for a side-dumping shovel as set forth in claim 3, wherein: A lubricating hole (10) is further formed at the center of the limiting blind hole (8), and the lubricating hole (10) is filled with solid lubricating oil.

5. The track limiting device for a side-dumping shovel as set forth in claim 4, wherein: Guide grooves (11) are formed on both sides of the reference frame (4), and a plurality of positioning screw holes (12) linearly arranged in up and down directions are formed on both front and rear sides of the guide grooves (11). Both sides of the outer limiting seat (5) and the inner limiting seat (6) are located in the guide grooves (11), and positioning through holes (13) are formed on both sides of the outer limiting seat (5) and the inner limiting seat (6). Positioning bolts (14) are assembled in the positioning screw holes (12) and pass through the positioning through holes (13).

6. The track limiting device for a side-dumping excavator according to any one of claims 1 to 5, characterized in that: A reference groove (15) is formed on the upper surface of the excavator walking part frame (1) and cooperates with the bottom of the reference frame (4), and the reference frame (4) is welded and fixed to the excavator walking part frame (1) after sinking into the reference groove (15).

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