Wheel falling prevention device of horizontal walking mechanism

Abstract

The utility model discloses a wheel falling prevention device of a horizontal walking mechanism, which relates to the technical field of wheel falling prevention devices and comprises a walking wheel, a ladder connecting frame and a walking wheel support, the walking wheel support is connected with the walking wheel through a pin shaft, the walking wheel support is connected with the ladder connecting frame through a bolt, and a folded edge is arranged on the ladder connecting frame. And the folded edges are arranged outside the walking wheels. By adopting the wheel falling prevention device of the horizontal walking mechanism, the problem that equipment falls in the horizontal walking process is solved, so that the equipment runs more stably, and the failure rate is reduced; the walking wheel support and the ladder connecting frame are sheet metal parts and are formed by cutting and bending plates, the walking wheels are made of nylon materials, manual installation cost is reduced, and a large amount of economic cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-slip wheel devices, in particular to an anti-slip wheel device for a horizontal walking mechanism. Background Art

[0002] The air-cooling island of a thermal power plant uses ambient air as a cooling medium to cool the high-temperature steam flowing in the tubes, and achieves the cooling effect by exchanging heat with the air, thereby achieving the purpose of water recycling. However, if the air-cooling island is exposed to the outside for a long time, dust and dirt will accumulate on the heat dissipation tube bundles and fins, blocking the air flow channel, thereby reducing the heat exchange efficiency of the air-cooling island and increasing the back pressure of the unit, which increases coal consumption and reduces the economic efficiency of the unit's power generation. At this time, it is extremely important for the flushing equipment on the air-cooling island to regularly flush and clean the heat dissipation fins on the air-cooling island.

[0003] The cleaning equipment in the prior art is installed parallel to the heat dissipation fins, and is provided with guide rails at the top and bottom. The lower guide rail is a rack, which is mainly used to provide power support for the cleaning equipment to move in the horizontal direction. Figure 4 , Figure 5 As shown, the upper guide rail is an equilateral triangle profile with a side length of 70mm. The top of the air-cooled island A-type tower is supported by welded angle steel, which is connected to the two faces of the triangular profile 18 through claws. Then only one face of the triangular profile 18 can be used. The length of the guide rail is 65m. Due to the long span, the maximum deviation height of the upper guide rail in the horizontal direction is about 50mm, so the cleaning equipment will derail when walking in the horizontal direction. According to the actual situation on the air-cooled island, the reasons for the derailment are as follows: There are two types of running wheels 19 arranged above the trolley. The running wheel 19 cooperates with an outer plane of the triangular pipe, and the other running wheel 19 cooperates with a rib of the triangular profile 18 in a linear manner, and rolls on it to realize the left and right movement of the trolley in the horizontal plane. Among them, the running wheel 19 that is in a linear manner with the track of the triangular profile 18 derails during walking. There is a weld at the upper rail connection position of the cleaning trolley. The two angle steels are not in the same plane when they are connected. When the trolley is moving, the running wheel 19 above the trolley encounters resistance at this position, causing jamming. However, the motor below is still working, which will cause the running wheel 19 above the trolley to not roll, while the gear below rotates, causing the trolley to tilt in the vertical direction. In addition, the running wheel 19, which is in surface contact with the track, also derails during movement. The triangular profile 18 used in the upper guide rail cooperates with the notched claw through the positioning block, and is connected to the angle iron welded on the A-type tower by bolts. The total length is about 65m. There is a phenomenon of sagging in the place where there is no claw connection. The straightness deviation is large. The running wheel 19 will detach from the top of the guide rail when it reaches a position lower than the distance between the two claws. Utility Model Content

[0004] The utility model aims to provide a wheel-falling prevention device for a horizontal walking mechanism, so as to solve the problem that the walking wheels are easy to fall off in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides an anti-wheel-slip device for a horizontal walking mechanism, comprising a walking wheel, a ladder connecting frame and a walking wheel bracket, the walking wheel bracket and the walking wheel are connected by a pin shaft, the walking wheel bracket and the ladder connecting frame are connected by bolts, and the ladder connecting frame is provided with a folded edge, and the folded edge is provided on the outside of the walking wheel.

[0006] Optionally, a bearing hole is provided on the traveling wheel, a deep groove ball bearing is provided in the bearing hole, a shaft sleeve is provided between the deep groove ball bearing and a through hole provided on the traveling wheel bracket, and the pin shaft passes through the bearing hole and the through hole.

[0007] Preferably, a cotter pin is provided on the pin shaft, and a standard flat washer is provided at the rear end of the cotter pin.

[0008] Preferably, the bolts all pass through the walking wheel bracket and the ladder connecting frame to be connected with nuts, and a spring washer and a flat washer are provided between the nut and the ladder connecting frame.

[0009] Preferably, the running wheel cooperates with the track on the triangular profile, and the width of the guide surface of the track on the triangular profile is smaller than the length of the running wheel.

[0010] Preferably, a connecting hole is provided on the ladder connecting frame, and the ladder connecting frame is connected to the walking bracket by bolt 1, and the bolt 1 passes through the connecting hole.

[0011] Preferably, the folded edge and the walking wheel are arranged at an acute angle with the mating surface of the triangular profile, the angle is above the upper track of the triangular profile, the folded edge is embedded in the gap between the triangular profile and the angle steel, and the folded edge does not contact the upper track of the triangular profile and the angle steel.

[0012] Therefore, the utility model adopts the above-mentioned anti-wheel-off device of the horizontal walking mechanism, which solves the problem of equipment falling during horizontal walking, makes the equipment run more stably and reduces the failure rate; the height of the upper walking wheel of the equipment is about 10m away from the vertical distance of the platform, and the installation is simple during the modification process to avoid long-term high-altitude operations; and in the improvement process, the walking wheel bracket and connecting parts are made of steel plates cut and bent, and the walking wheel is made of nylon material plus the labor installation cost, which saves a lot of economic costs.

[0013] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a left view of an anti-slip wheel device of a horizontal walking mechanism of the utility model;

[0015] Figure 2 It is a front view of an anti-slip wheel device of a horizontal walking mechanism of the utility model;

[0016] Figure 3 It is a schematic diagram of the assembly of an anti-slip wheel device of a horizontal walking mechanism of the utility model;

[0017] Figure 4 It is a surface contact walking wheel in the prior art;

[0018] Figure 5 It is a line contact walking wheel;

[0019] Reference numerals

[0020] 1. Ladder connecting frame; 2. Nut; 3. Spring washer; 4. Flat washer; 5. Bolt; 6. Travel wheel bracket; 7. Travel wheel; 8. Deep groove ball bearing; 9. Bushing; 10. Standard flat washer; 11. Split pin; 12. Pin shaft; 13. Angle steel; 14. Triangular profile upper track; 15. Travel ladder frame; 16. Connection hole; 17. Anti-slip wheel component; 18. Triangular profile; 19. Travel wheel one. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example

[0024] See also Figure 1-3The utility model provides an anti-slip device for a horizontal walking mechanism, including a walking wheel 7, a walking wheel bracket 6 and a ladder connecting frame 1. The ladder connecting frame 1 is used to connect the walking ladder frame 15. The ladder connecting frame 1 is connected to the walking wheel bracket 6 by bolts 5. Four bolts 5 are provided. The walking wheel bracket 6 is connected to the walking wheel 7 by a pin 12. The pin 12 is the rotation center of the walking wheel 7 and is used to stabilize the walking wheel 7 and the bolts, nuts and other accessories. The walking wheel bracket 6 is used to support the walking wheel 7 and is connected to the ladder connecting frame 1. The walking wheel 7 is made of nylon that is resistant to high temperatures of 80°C. It can run stably on the upper track and the use of nylon material will not cause wear to the upper track, so that the upper track will rust and be damaged.

[0025] The pin shaft 12 passes through the through hole on the travel wheel bracket 6 and the bearing hole arranged on the travel wheel 7. A deep groove ball bearing 8 is arranged in the bearing hole. A shaft sleeve 9 is arranged between the deep groove ball bearing 8 and the through hole on the travel wheel bracket 6.

[0026] A cotter pin 11 is provided on the pin shaft 12, and a standard flat washer 10 is provided at the rear end of the cotter pin 11. The cotter pin 11 positions the standard flat washer 10 to prevent the standard flat washer 10 from escaping from the pin shaft 12. The pin shaft 12 and the standard flat washer 10 are used together to position the walking wheel bracket 6.

[0027] The bolts 5 all pass through the walking wheel bracket 6 and the ladder connecting frame 1 to be connected with the nuts 2 , and a spring washer 3 and a flat washer 4 are arranged between the nut 2 and the ladder connecting frame 1 .

[0028] The running wheel 7 cooperates with the upper track 14 of the triangular profile, and the width of the guide rail surface of the upper track 14 of the triangular profile is smaller than the length of the running wheel 7. The length of the running wheel 7 is 130 mm, and the width of the guide rail is 70 mm. The improvement of the surface contact allows the running wheel 7 to contact the guide rail at any position, and the length of the running wheel 7 is greater than the width of the guide rail surface, so that the contact surface between the anti-slip wheel component 17 and the guide rail can be stabilized at 70 mm.

[0029] The ladder connecting frame 1 is provided with a connecting hole 16, which is connected to the walking ladder frame 15 by a bolt. The ladder connecting frame 1 is provided with a folding edge, which is arranged outside the walking wheel 7. The folding edge is arranged between the upper track 14 of the triangular profile and the angle steel 13, and the folding edge and the walking wheel 7 are set at an angle with the matching surface of the triangular profile. The folding edge can be embedded in the gap between the triangular profile and the angle steel 13. The matching surface of the walking wheel 7 and the upper track 14 of the triangular profile is at an acute angle to the ground, and the side of the upper track 14 of the triangular profile close to the angle steel 13 is at an acute angle with the angle steel 13. The folding edge does not contact the upper track 14 of the triangular profile and the angle steel 13. During the horizontal walking process, if the swing amplitude is too large, the folding edge can hang on the upper part of the upper track 14 of the triangular profile to prevent the walking mechanism from derailing. The length of the folding edge is 30mm.

[0030] During the working process, the ladder connecting frame 1 is connected to the walking ladder frame 5, the folded edge and the walking wheel 7 are set at an acute angle to the matching surface of the triangular profile, the folded edge is embedded in the gap between the triangular profile and the angle steel 13, and the folded edge length is 30 mm. During horizontal walking, if the swing amplitude is too large, the folded edge can hang on the upper part of the track 14 on the triangular profile to prevent the walking mechanism from derailing.

[0031] Therefore, the utility model adopts the above-mentioned anti-wheel-off device of the horizontal walking mechanism, which solves the problem of equipment falling during horizontal walking, makes the equipment run more stably and reduces the failure rate; the height of the upper walking wheel of the equipment is about 10m away from the vertical distance of the platform, which is easy to install during the modification process and avoids long-term high-altitude operations; and in the improvement process, the material of the walking wheel bracket and the connecting part is Q235, and the walking wheel is made of nylon material plus the labor installation cost, which saves a lot of economic costs.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. An anti-slip device for a horizontal walking mechanism, characterized in that: It includes a walking wheel, a ladder connecting frame and a walking wheel bracket, wherein the walking wheel bracket and the walking wheel are connected via a pin shaft, the walking wheel bracket and the ladder connecting frame are connected via bolts, and the ladder connecting frame is provided with a folded edge, and the folded edge is provided outside the walking wheel.

2. The anti-slip wheel device of a horizontal walking mechanism according to claim 1, characterized in that: The travel wheel is provided with a bearing hole, a deep groove ball bearing is provided in the bearing hole, a shaft sleeve is provided between the deep groove ball bearing and a through hole provided on the travel wheel bracket, and the pin passes through the bearing hole and the through hole.

3. The anti-slip wheel device of a horizontal walking mechanism according to claim 1, characterized in that: The pin shaft is provided with a split pin, and the rear end of the split pin is provided with a standard flat washer.

4. The anti-slip wheel device of a horizontal walking mechanism according to claim 1, characterized in that: The bolts all pass through the walking wheel bracket and the ladder connecting frame and are connected with nuts, and a spring washer and a flat washer are arranged between the nut and the ladder connecting frame.

5. The anti-slip wheel device of a horizontal walking mechanism according to claim 1, characterized in that: The running wheel cooperates with the track on the triangular profile, and the width of the guide rail surface of the track on the triangular profile is smaller than the length of the running wheel.

6. The anti-slip wheel device of a horizontal walking mechanism according to claim 5, characterized in that: The ladder connecting frame is provided with a connecting hole, and the ladder connecting frame is connected to the walking bracket through a bolt, and the bolt passes through the connecting hole.

7. The anti-slip wheel device of a horizontal walking mechanism according to claim 6, characterized in that: The folded edge and the running wheel are arranged at an acute angle with the matching surface of the triangular profile, the acute angle is above the upper track of the triangular profile, the folded edge is embedded in the gap between the triangular profile and the angle steel, and the folded edge does not contact the upper track of the triangular profile and the angle steel.

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