Automatic heating device for excavator bucket

Abstract

The utility model discloses an automatic excavator bucket heating device which comprises a pressing roller, a left bending roller, a right bending roller, a shaping oil cylinder, a sliding frame, a power motor and a base frame, the left bending roller and the right bending roller are installed on the base frame and are in transmission connection with the power motor, and the sliding frame is connected to the base frame in a sliding mode. The pressing roller is connected to the sliding frame and located above the position between the left bending roller and the right bending roller, the shaping oil cylinder is installed on the base frame, a piston rod of the shaping oil cylinder is connected with the sliding frame, and the left bending roller and the right bending roller are each provided with a heating device. The heating device comprises a heater set. The two ends of the left bending roller and the two ends of the right bending roller are movably connected with rotating frames. The automatic heating device for the excavator bucket is simple in structure, convenient to use and practical, a steel plate is heated through the heating device, so that the steel plate is bent and shaped while being rapidly heated, and the effects that the size of a bottom plate of the excavator bucket is rapidly shaped, and meanwhile size rebound is avoided are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of heating of bucket plates, and particularly relates to an automatic heating device for a bucket. Background Art

[0002] A bucket refers to a bucket-shaped component used for excavating loose materials such as soil, yellow sand, stones, and construction waste. It is composed of a bottom plate, wall plates, hanging ear plates, ear plates, tooth plates, side plates, bucket teeth, side teeth, etc., and is a working device often installed on an excavator for excavation.

[0003] The bottom plate of the bucket is generally bent and shaped by a bending machine or a pressure roller, but it is difficult to bend and shape the bottom plate in one go with these two bending methods, and there will be a phenomenon of dimensional springback after bending, resulting in difficulties in subsequent welding of the bottom plate and side plates. Auxiliary jigs are required for positioning to ensure the welding effect and avoid the phenomenon of welding position deviation during welding. In particular, the dimensional accuracy of the bottom plate of a large bucket is more important; to avoid dimensional springback of the bottom plate of the bucket during welding, heating is performed at multiple bending points to eliminate the stress of the processing dimensions, but this heating is inconvenient and mainly uses a liquefied gas torch for heating, with too low heating efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an automatic heating device for a bucket, which has a simple structure, is convenient and practical. By heating the steel plate with the heating device, the steel plate can be quickly heated and bent and shaped at the same time, achieving the effect of ensuring the rapid shaping of the bottom plate of the bucket while avoiding dimensional springback.

[0005] An automatic heating device for a bucket includes a pressure roller, a left bending roller, a right bending roller, a shaping oil cylinder, a carriage, a power motor, and a base frame. The left bending roller and the right bending roller are installed on the base frame and are in transmission connection with the power motor. The carriage is slidably connected to the base frame. The pressure roller is connected to the carriage and is located above the left bending roller and the right bending roller. The shaping oil cylinder is installed on the base frame and the piston rod is connected to the carriage. Heating devices are installed on both the left bending roller and the right bending roller; the heating device includes a heater group. Rotating frames are movably connected to both ends of the left bending roller and the right bending roller. Both ends of the heater group are respectively hinged to the two rotating frames. The heater group includes hinge rods, stability regulators, and several heaters. Adjacent heaters are respectively connected by hinge rods, and stability regulators are respectively connected to both ends of the heaters.

[0006] Preferably, the heater includes a fixed plate, a high-frequency induction coil, balance pipes, and a screw. The high-frequency induction coil is connected between the two fixed plates. The screw is connected to the middle of the fixed plate. The two balance pipes are connected to the fixed plate and are located on the upper and lower sides of the screw. A fixing nut for fixing the stable regulator is provided on the screw.

[0007] Preferably, the stable regulator includes an adjusting plate, adjusting rods, and rolling rings. One end of each of the two adjusting rods is connected to the adjusting plate, and the other end passes through the corresponding balance pipe and is connected to the rolling ring. A hole for the screw to pass through is provided in the middle of the adjusting plate.

[0008] Preferably, one end of the adjusting rod is connected with a Y-shaped rod, and rolling rings are sleeved on both ends of the Y-shaped rod.

[0009] Preferably, the adjusting rods, rolling rings, and Y-shaped rods are all made of ceramic materials.

[0010] Preferably, both ends of the hinge rod are hinged to the fixed plates on both sides.

[0011] Beneficial effects:

[0012] (1) For the automatic heating device of the bucket of the present invention, its structure is simple, convenient and practical. By heating the steel plate through the heating device, the steel plate can be quickly heated and bent and shaped at the same time, achieving the effect of ensuring the quick shaping of the bucket bottom plate size and avoiding size springback.

[0013] (2) For the automatic heating device of the bucket of the present invention, the stable regulator ensures that the heater moves along the steel plate, avoiding the phenomenon that the heating device cannot heat the steel plate while the steel plate is bent, resulting in size springback after the steel plate is bent. Description of the drawings

[0014] Figure 1 is a schematic structural diagram of the automatic heating device;

[0015] Figure 2 is a schematic structural diagram of the heating device;

[0016] Figure 3 is a schematic structural diagram of the heater group;

[0017] Figure 4 is a schematic structural diagram of the stable regulator;

[0018] 1 - pressure roller, 2 - left bending roller, 3 - right bending roller, 4 - heating device, 41 - rotating frame, 42 - heater, 43 - hinge rod, 44 - stable regulator, 45 - fixed plate, 46 - high-frequency induction coil, 47 - balance pipe, 48 - screw, 49 - adjusting plate, 410 - fixing nut, 411 - adjusting rod, 412 - rolling ring, 413 - Y-shaped rod. Detailed implementation mode

[0019] The embodiments of the present utility model will be further described below with reference to the accompanying drawings.

[0020] Embodiment 1

[0021] As shown in Figures 1 to 4 ; An automatic heating device for a bucket includes a pressure roller 1, a left bending roller 2, a right bending roller 3, a shaping oil cylinder, a carriage, a power motor and a base frame. The left bending roller 2 and the right bending roller 3 are installed on the base frame and are in transmission connection with the power motor. The carriage is slidably connected to the base frame. The pressure roller 1 is connected to the carriage and is located above the left bending roller 2 and the right bending roller 3. The shaping oil cylinder is installed on the base frame and the piston rod is connected to the carriage. Heating devices 4 are installed on both the left bending roller 2 and the right bending roller 3; The heating device 4 includes a heater group. Rotating frames 41 are movably connected to both ends of the left bending roller 2 and the right bending roller 3. Both ends of the heater group are respectively hinged to the two rotating frames 41. The heater group includes hinged rods 43, a stability regulator 44 and a plurality of heaters 42. Adjacent heaters 42 are respectively connected by hinged rods 43. Both ends of the heater 42 are respectively connected with a stability regulator 44; The heater 42 includes a fixing plate 45, a high-frequency induction coil 46, a balance tube 47 and a screw 48. The high-frequency induction coil 46 is connected between the two fixing plates 45. The screw 48 is connected to the middle of the fixing plate 45. Two balance tubes 47 are connected to the fixing plate 45 and are located on the upper and lower sides of the screw 48. A fixing nut 410 for fixing the stability regulator 44 is arranged on the screw 48; The stability regulator 44 includes an adjusting plate 49, an adjusting rod 411 and a rolling ring 412. One end of the two adjusting rods 411 is connected to the adjusting plate 49 and the other end passes through the corresponding balance tube 47 and is connected to the rolling ring. A hole for the screw 48 to pass through is opened in the middle of the adjusting plate 49; One end of the adjusting rod 411 is connected with a Y rod 413. Rolling rings 412 are sleeved on both ends of the Y rod 413; The adjusting rod 411, the rolling ring 412 and the Y rod 413 are all made of ceramic materials; Both ends of the hinged rod 43 are respectively hinged to the fixing plates 45 on both sides.

[0022] Pre-penetrate the mining floor plate between the left bending roller 2, the right bending roller 3 and the pressing roller 1, and at the same time penetrate the heating device 4. Heat the position of the steel plate that needs to be bent through the heating device 4. After heating, drive the carriage to descend by the shaping oil cylinder so that the pressing roller 1 thereon presses the steel plate. At the same time, the power motor drives the left bending roller 2 and the right bending roller 3 to rotate, so that the steel plate moves to complete the bending work; when the heating device 4 works, because the steel plate is driven to move, and the heater group is connected to the rotating frame 41, the heater group will tilt when the steel plate is bent. The rotating frame 41 is driven to rotate, and at the same time the rotating frame 41 restricts the relative position of the heater group moving on the steel plate; rotate the fixing nut 410 to adjust the position of the adjusting plate 49. The adjusting plate 49 drives the adjusting rod 411, and the adjusting rod 411 drives the rolling ring 412 to move, so that the rolling rings 412 on the upper and lower sides of the steel plate move to rollingly contact the steel plate, so as to ensure that the distance between the high-frequency induction coil 46 of the heater 42 and the steel plate is controlled, and ensure that the heating effect of the steel plate is in the best state. After adjusting the position of the rolling ring 412, rotate the two fixing nuts 410 to fix the adjusting plate 49 to ensure the position of the rolling ring 412; set the Y rod 413 to connect the two rolling rings 412 to ensure the stability when the heater 42 moves; set the materials of the adjusting rod 411, the rolling ring 412 and the Y rod 413 to ceramics to avoid heating by the high-frequency induction coil 46. The ceramics are preferably made of special high-strength ceramics to avoid breakage.

[0023] The specific embodiments of the present invention have been described in detail above, but they are only examples, and the present invention is not limited to the above-described specific embodiments. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, equivalent transformations and modifications made without departing from the spirit and scope of the present invention are all covered by the present invention.

Claims

1. An automatic heating device for a bucket, characterized in that: The invention comprises a pressure roller (1), a left bending roller (2), a right bending roller (3), a shaping oil cylinder, a slide, a power motor and a base frame. The left bending roller (2) and the right bending roller (3) are mounted on the base frame and are connected to the power motor in a transmission manner. The slide is slidably connected to the base frame. The pressure roller (1) is connected to the slide and is located above the left bending roller (2) and the right bending roller (3). The shaping oil cylinder is mounted on the base frame and the piston rod is connected to the slide. The left bending roller (2) and the right bending roller (3) are both equipped with a shaping oil cylinder. A heating device (4); the heating device (4) comprises a heater group, both ends of the left bending roller (2) and the right bending roller (3) are movably connected to a rotating frame (41), both ends of the heater group are respectively hinged on the two rotating frames (41), the heater group comprises a hinge rod (43), a stabilizing regulator (44) and a plurality of heaters (42), adjacent heaters (42) are respectively connected by hinge rods (43), and both ends of the heater (42) are respectively connected to the stabilizing regulator (44).

2. The automatic heating device for a bucket according to claim 1, characterized in that: The heater (42) comprises a fixing plate (45), a high-frequency induction coil (46), a balancing tube (47) and a screw (48); the high-frequency induction coil (46) is connected between two fixing plates (45); the screw (48) is connected to the middle of the fixing plate (45); the two balancing tubes (47) are connected to the fixing plate (45) and are located on the upper and lower sides of the screw (48); and a fixing nut (410) for fixing the stabilizing regulator (44) is provided on the screw (48).

3. The automatic heating device for a bucket according to claim 2, characterized in that: The stabilizing regulator (44) comprises an adjusting plate (49), an adjusting rod (411) and a rolling ring (412). One end of the two adjusting rods (411) is connected to the adjusting plate (49) and the other end passes through the corresponding balancing pipe (47) and is connected to the rolling ring. A hole for the screw rod (48) to pass through is opened in the middle of the adjusting plate (49).

4. The automatic heating device for a bucket according to claim 3, characterized in that: One end of the adjusting rod (411) is connected to a Y rod (413), and both ends of the Y rod (413) are sleeved with rolling rings (412).

5. The automatic heating device for a bucket according to claim 4, characterized in that: The adjusting rod (411), the rolling ring (412) and the Y rod (413) are all made of ceramic materials.

6. The automatic heating device for a bucket according to claim 5, characterized in that: The two ends of the hinged rod (43) are respectively hinged to the fixing plates (45) on both sides.

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