Anti-overload protection device of slag pusher

Abstract

The utility model discloses an anti-overload protection device of a slag pusher, which can avoid overload of equipment and greatly prolong the service life of the equipment. A machine body of the motor is fixedly arranged on the slag pushing support, the transmission rod is movably arranged at the bottom of the slag pushing support, the power output end of the motor is in power connection with the transmission rod, transmission gears are arranged at the two ends of the transmission rod and meshed with racks longitudinally fixed to a rack baffle, and a fixing plate is fixedly arranged at the front end of the push-pull rod. The top of the slag pushing plate is hinged to the fixing plate, an overload pressure sensor is arranged on the upper side of the fixing plate, a collecting rod is arranged at the signal collecting end of the overload pressure sensor and located above the slag pushing plate, a roller is arranged at the end of the collecting rod, and the roller can roll along with rotation of the slag pushing plate in a matched mode. The collecting rod is lifted under the rotation of the slag pushing plate and triggers the overload pressure sensor after reaching a set threshold value; the slag pushing device can be widely applied to the field of welding slag pushing.

Description

Technical Field

[0001] The utility model relates to an overload protection device for a slag pushing machine, belonging to the technical field of welding slag pushing. Background Art

[0002] At present, most slag pushing mechanisms directly control a fixed slag pushing vehicle to perform slag pushing operations in a single direction. Some do not have an effective exhaust system, and the waste gas generated after cutting is not treated. At the same time, the application of sensors is also very few. In order to meet the slag pushing requirements, motors with higher power are often used in many cases, resulting in relatively high dimensions and costs. The bucket is basically fixed. In order not to be knocked by the uneven ground during operation, there must be a certain distance between the lower edge of the bucket and the ground. This means that either the slag cannot be shoveled cleanly, or the lower edge of the bucket contacts the protruding ground repeatedly for a long time, which may damage the bucket. At the same time, small pieces of waste slag may get stuck behind or under the bucket in special cases when the bucket is pushing the slag. In this case, during the movement of the bucket, it will carry the waste slag and wear this channel, or carry the waste slag back to the parking position when it returns. After this situation, only manual labor can be sent down to clean it up. Among them, the slag pushing mechanism is driven by a motor to drive the transmission mechanism forward. When there is waste slag exceeding the design requirements, the slag pushing mechanism cannot push the waste slag; at this time, the motor will be overloaded or the sprocket chain cannot withstand the torque and will be damaged. Content of the Utility Model

[0003] The utility model overcomes the deficiencies of the prior art and provides an overload protection device for a slag pushing machine, which can prevent the equipment from being overloaded and greatly prolong the service life of the equipment.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an overload protection device for a slag pushing machine, including a slag pushing bucket mechanism. The structure of the slag pushing bucket mechanism includes a slag pushing plate, a motor, a transmission rod, a track wheel and a slag pushing support. The body of the motor is fixedly arranged on the slag pushing support. The transmission rod is movably arranged at the bottom of the slag pushing support. The power output end of the motor is in power connection with the transmission rod. Transmission gears are arranged at both ends of the transmission rod. The transmission gears are meshed with racks longitudinally fixed on the frame baffle. The track wheel is arranged on the slag pushing support and is matched with a track longitudinally fixed on the frame baffle. The cooperation of the transmission gears and the track wheel enables the slag pushing support to move smoothly along the longitudinal direction of the frame.

[0005] A fixing plate is fixedly arranged at the front end of the push rod. The top of the slag pushing plate is hinged to the fixing plate. An overload pressure sensor is arranged on the upper side of the fixing plate. A collecting rod is arranged at the signal acquisition end of the overload pressure sensor. The collecting rod is located above the slag pushing plate. A roller is arranged at the end of the collecting rod. The roller can roll correspondingly as the slag pushing plate rotates. The collecting rod is lifted under the rotation of the slag pushing plate and triggers the overload pressure sensor after reaching the set threshold.

[0006] Further, the slag pushing plate is located at the front side of the slag pushing support. Sleeve pipes are fixedly arranged on the upper sides of both ends of the slag pushing support. The push rod is movably inserted into the sleeve pipes. Both ends of the push rod extend out of the outer sides of the sleeve pipes. A plurality of knife lifting rods are arranged in the middle of the slag pushing plate. One end of the knife lifting rod is fixedly arranged on the slag pushing plate. The other end of the knife lifting rod is hinged to the slag pushing support. Limit sensors are arranged on the push rod at the outer sides of both ends of the sleeve pipe. The limit sensors are triggered by limit blocks arranged at both ends of the sleeve pipe.

[0007] Further, an air duct partition pushing bow is arranged on the top of the slag pushing support. The middle of the air duct partition pushing bow is fixedly arranged on the slag pushing support. Both ends of the air duct partition pushing bow are arc-shaped structures bent downward.

[0008] Further, the slag pushing bucket mechanism is arranged at one end inside the frame. The slag pushing bucket mechanism can reciprocate longitudinally along the frame. When the slag pushing bucket mechanism moves, the waste slag is pushed to the slag outlet at the other end of the frame.

[0009] The beneficial effects of the present utility model compared with the prior art are as follows: The slag pushing plate of the slag pushing bucket mechanism of the present utility model is set as a movable structure, and no clamping will occur during the slag pushing process, effectively protecting the slag pushing bucket mechanism and prolonging its service life. The problem of overload and material jamming of the slag pushing plate is solved by using the overload pressure sensor, protecting the motor. Description of the Drawings

[0010] The following further describes the present utility model with reference to the drawings.

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] Figure 2 It is a schematic diagram of the state when the slag pushing bucket mechanism of the present utility model is normally pushing slag.

[0013] Figure 3 For Figure 2 The enlarged schematic diagram of area A in

[0014] Figure 4 It is a schematic diagram of the state when the slag pushing bucket mechanism of the present utility model is overloaded when pushing slag.

[0015] Figure 5 is Figure 4 An enlarged schematic view of area B in

[0016] Figure 6 A structural schematic diagram of the present utility model on the frame of a flame cutting machine.

[0017] In the figure: 1 is the slag pushing bucket mechanism, 11 is the slag pushing plate, 12 is the motor, 13 is the transmission rod, 14 is the track wheel, 15 is the slag pushing support, 16 is the sleeve, 17 is the push-pull rod, 18 is the fixing plate, 19 is the tool lifting rod, 110 is the limit sensor, 111 is the limit block, 112 is the overload pressure sensor, 113 is the acquisition rod, 114 is the roller, 115 is the air duct partition push bow, and 2 is the frame. Specific embodiments

[0018] The present utility model will be further described below in conjunction with specific embodiments.

[0019] Such as Figures 1 to 6As shown in the figure, a slag pushing machine overload protection device of the utility model includes a slag pushing bucket mechanism 1. The structure of the slag pushing bucket mechanism 1 includes a slag pushing plate 11, a motor 12, a transmission rod 13, a track wheel 14 and a slag pushing support 15. The body of the motor 12 is fixedly arranged on the slag pushing support 15. The transmission rod 13 is movably arranged at the bottom of the slag pushing support 15. The power output end of the motor 12 is in power connection with the transmission rod 13. Transmission gears are arranged at both ends of the transmission rod 13, and the transmission gears are meshed with the racks longitudinally fixed on the baffle of the frame 2. The track wheel 14 is arranged on the slag pushing support 15 and is matched with the track longitudinally fixed on the baffle of the frame 2. The cooperation of the transmission gears and the track wheel 14 enables the slag pushing support 15 to move smoothly along the longitudinal direction of the frame 2. A fixing plate 18 is fixedly arranged at the front end of the push-pull rod 17. The top of the slag pushing plate 11 is hinged to the fixing plate 18. An overload pressure sensor 112 is arranged on the upper side of the fixing plate 18. A collecting rod 113 is arranged at the signal collecting end of the overload pressure sensor 112. The collecting rod 113 is located above the slag pushing plate 11. A roller 114 is arranged at the end of the collecting rod 113. The roller 114 can roll correspondingly with the rotation of the slag pushing plate 11. The collecting rod 113 is lifted under the rotation of the slag pushing plate 11 and triggers the overload pressure sensor 112 after reaching the set threshold value. The slag pushing plate 11 is located at the front side of the slag pushing support 15. Sleeve tubes 16 are fixedly arranged on the upper sides of both ends of the slag pushing support 15. A push-pull rod 17 is movably inserted into the sleeve tubes 16. Both ends of the push-pull rod 17 extend out of the outer sides of the sleeve tubes 16. A plurality of knife-lifting rods 19 are arranged in the middle of the slag pushing plate 11. One end of the knife-lifting rod 19 is fixedly arranged on the slag pushing plate 11, and the other end of the knife-lifting rod 19 is hinged to the slag pushing support 15. Limit sensors 110 are arranged on the push-pull rod 17 at the outer sides of both ends of the sleeve tube 16, and the limit sensors 110 are triggered by limit blocks 111 arranged at both ends of the sleeve tube 16. A duct partition pushing bow 115 is arranged on the top of the slag pushing support 15. The middle part of the duct partition pushing bow 115 is fixedly arranged on the slag pushing support 15. Both ends of the duct partition pushing bow 115 are arc-shaped structures bent downward. The slag pushing bucket mechanism 1 is arranged at one end inside the frame 2, and the slag pushing bucket mechanism 1 can move back and forth along the longitudinal direction of the frame 2. When the slag pushing bucket mechanism 1 moves, the waste slag is pushed to the slag outlet at the other end of the frame 2.

[0020] The utility model has a flap structure above the slag pushing plate 11. During the slag pushing process, if there is too much waste slag, exceeding a certain margin of the original design requirements, the waste slag in front of the slag pushing bucket mechanism 1 will stack up. At this time, it will touch the upper flap structure. When the flap structure flips to a certain position, the overload pressure sensor 112 will be triggered, stopping the current slag pushing operation and prompting that it is necessary to manually remove the waste slag, effectively protecting the motor from overload and further protecting the transmission mechanism from damage to the gear components.

[0021] The utility model has an air duct partition pushing bow 115 with an arch structure on the top of the entire slag pushing bucket mechanism 1. The purpose is to prevent the slag pushing bucket mechanism 1 from being stuck or jammed by waste slag when the slag pushing bucket mechanism 1 moves back and forth inside the cutting table, effectively protecting the equipment from damage.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present utility model.

Claims

1. A slag pusher overload protection device, characterized in that: The invention comprises a slag pushing bucket mechanism (1), wherein the structure of the slag pushing bucket mechanism (1) comprises a slag pushing plate (11), a motor (12), a transmission rod (13), a track wheel (14) and a slag pushing bracket (15), wherein the body of the motor (12) is fixedly arranged on the slag pushing bracket (15), the transmission rod (13) is movably arranged at the bottom of the slag pushing bracket (15), the power output end of the motor (12) is power-connected to the transmission rod (13), both ends of the transmission rod (13) are provided with a transmission gear, the transmission gear meshes with a rack longitudinally fixed on a baffle of a frame (2), the track wheel (14) is arranged on the slag pushing bracket (15) and cooperates with a track longitudinally fixed on the baffle of the frame (2), and the transmission gear and the track wheel (14) cooperate to enable the slag pushing bracket (15) to move smoothly along the longitudinal direction of the frame (2); The slag pushing plate (11) is located at the front side of the slag pushing bracket (15), and sleeves (16) are fixedly provided on the upper sides of both ends of the slag pushing bracket (15), and a push-pull rod (17) is movably inserted in the sleeve (16), and both ends of the push-pull rod (17) extend out of the sleeve (16). A plurality of knife lifting rods (19) are provided in the middle of the slag pushing plate (11), and one end of the knife lifting rod (19) is fixedly provided on the slag pushing plate (11), and the other end of the knife lifting rod (19) is hinged on the slag pushing bracket (15); limit sensors (110) are provided on the push-pull rods (17) located outside both ends of the sleeve (16), and the limit sensors (110) are triggered by limit blocks (111) provided at both ends of the sleeve (16); A fixing plate (18) is fixedly provided at the front end of the push-pull rod (17); the top of the slag pushing plate (11) and the fixing plate (18) are hinged together; an overload pressure sensor (112) is provided on the upper side of the fixing plate (18); a collecting rod (113) is provided at the signal collecting end of the overload pressure sensor (112); the collecting rod (113) is located above the slag pushing plate (11); a roller (114) is provided at the end of the collecting rod (113); the roller (114) can roll in matching manner with the rotation of the slag pushing plate (11); the collecting rod (113) is lifted up by the rotation of the slag pushing plate (11) and triggers the overload pressure sensor (112) after reaching a set threshold.

2. The slag pusher overload protection device according to claim 1, characterized in that: An air duct baffle push bow (115) is arranged on the top of the slag pushing bracket (15), the middle part of the air duct baffle push bow (115) is fixedly arranged on the slag pushing bracket (15), and both ends of the air duct baffle push bow (115) are arc-shaped structures bent downwards.

3. The slag pusher overload protection device according to claim 1, characterized in that: The slag pushing bucket mechanism (1) is arranged at one end inside the frame (2), and the slag pushing bucket mechanism (1) can move back and forth longitudinally along the frame (2). When the slag pushing bucket mechanism (1) moves, it pushes the waste slag to the slag outlet at the other end of the frame (2).

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