Anti-slip device for electric shovel

Abstract

The utility model discloses an anti-slip device for an electric shovel, which comprises a mounting frame, a plurality of anti-slip devices, a plurality of anti-slip devices and a plurality of anti-slip devices, and is characterized in that the mounting frame is arranged on the electric shovel during use; the supporting unit is arranged on the mounting frame; the supporting stop iron can do linear motion in the vertical direction through the supporting unit; the power device is configured in the mode that when the power device locks the supporting unit, the supporting stop iron cannot move downwards in the vertical direction by means of the self weight; when the power device unlocks the supporting unit, the supporting stop iron can move downwards in the vertical direction by means of the self weight. The device is novel in structure and high in practicability; the electric shovel can be braked in emergency when going uphill and downhill, and the anti-slip effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric shovels, in particular to an anti-slip device for electric shovels. Background Art

[0002] By analyzing previous cases of shovel slipping, the ultimate cause of the shovel slipping can be summarized as follows: after the electric shovel suddenly loses power on the slope, the shovel still has inertia to move downward, but the power cannot be restored immediately to overcome the inertia, and the friction force of the brake is not enough to offset the inertia.

[0003] To achieve the electric shovel on the ramp can be braked at any time, the most direct and reliable is mechanical braking. To this end, consider a blocking mechanism in the emergency before the two sides of the walking rail plate to prevent the electric shovel from sliding down. Utility Model Content

[0004] The utility model aims to provide an anti-shovel slip device for an electric shovel, so as to solve the technical problems existing in the background technology.

[0005] The utility model provides the following solutions:

[0006] An anti-shovel slip device for an electric shovel, comprising:

[0007] A mounting frame, wherein the mounting frame is configured on the electric shovel when in use;

[0008] A supporting unit, wherein the supporting unit is arranged on the mounting frame;

[0009] A support stopper, wherein the support stopper can move linearly in a vertical direction through the support unit;

[0010] The power device is configured as follows: when the power device locks the support unit, the support stop cannot move downward in the vertical direction by relying on its own weight; when the power device unlocks the support unit, the support stop can move downward in the vertical direction by relying on its own weight.

[0011] In some embodiments, the support unit includes a support pulley, a positioning seat, a positioning locking pin and a rope, the support pulley is arranged at the end of the mounting frame, the positioning seat is arranged on the mounting frame, one end of the positioning locking pin is rotatably arranged in the positioning seat, and the other end of the positioning locking pin has a slot matching the power device; one end of the rope is connected to the support stop iron, and is wrapped around the positioning locking pin after passing through the support pulley.

[0012] In some embodiments, the power device includes an air cylinder, and the piston rod of the air cylinder is used to match the slot on the positioning locking pin.

[0013] In some embodiments, the support stopper has at least one inclined surface, and the inclined surface is arranged on the crawler side facing the electric shovel.

[0014] In some embodiments, the support stopper has two inclined surfaces, and the side having the inclined surface is arranged on the crawler side facing the electric shovel.

[0015] In some embodiments, the rope is a steel wire rope.

[0016] The beneficial effects of the utility model are:

[0017] The utility model has a novel structure and strong practicality. Through a simulation experiment on a 11# electric shovel, it is found that the mechanism operates normally, the falling position of the blocking mechanism is reasonable, and the blocking height meets the requirements, which can play a braking effect in an emergency when the electric shovel goes uphill or downhill. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view schematic diagram of the electric shovel anti-slip device of the present application.

[0019] Figure 2 It is a schematic front view of the mounting frame and steel pipe of the electric shovel anti-slip device of the present application.

[0020] Illustration: 1-air cylinder, 2-positioning lock pin, 3-positioning seat, 4-support pulley, 5-support stop iron, 6-rope, 7-mounting frame, 8-steel pipe. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0022] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0026] The following will be combined Figure 1-2 , a device for preventing electric shovel from slipping involved in the embodiment of the present application is described in detail. It should be noted that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0027] like Figure 1-2 As shown, an anti-slip device for an electric shovel comprises: a mounting frame 7, a supporting unit, a supporting stop 5, and a power device, wherein the mounting frame 7 is arranged on the electric shovel when in use; the supporting unit is arranged on the mounting frame 7; the supporting stop 5 can make a linear motion in the vertical direction through the supporting unit; the power device is configured as follows: when the power device locks the supporting unit, the supporting stop 5 cannot move downward in the vertical direction by relying on its own weight; when the power device unlocks the supporting unit, the supporting stop 5 can move downward in the vertical direction by relying on its own weight.

[0028] The key point of this solution is that the electric shovel can operate normally when going up and down the slope normally. In case of emergencies, the anti-slip device designed can be automatically or manually operated to release the blocking mechanism and block the electric shovel's walking track. Taking the WK-10B electric shovel as an example, because the upper and lower platforms of the WK-10B electric shovel need to rotate relative to each other, the lines and pipelines of the electrical control and gas control between the upper and lower platforms are connected through the high and low voltage electrical receivers and oil and gas joints on the center axis. The high and low voltage electrical receivers no longer have extra power rings for other uses, and the oil and gas joints have a spare air pipe, so the designed actuator uses a pneumatic device.

[0029] See also Figure 2 The support unit includes a support pulley 4, a positioning seat 3, a positioning lock pin 2 and a rope 6. The support pulley 4 is arranged at the end of the mounting frame 7. The support pulley 4 is arranged at the end of the mounting frame 7 so that the rope 6 will not interfere with the mounting frame 7 when sliding up and down. The positioning seat 3 is arranged on the mounting frame 7. One end of the positioning lock pin 2 is rotatably arranged in the positioning seat 3. The rotation of the positioning lock pin 2 is to achieve the winding of the rope 6, so as to achieve the adjustment of the displacement of the support stop 5 in the vertical direction. The other end of the positioning lock pin 2 has a card slot matching the power device; one end of the rope 6 is connected to the support stop 5, and is wound around the positioning lock pin 2 after passing through the support pulley 4. The power device includes an air cylinder 1, and the piston rod of the air cylinder 1 is used to match the card slot on the positioning lock pin 2. That is, when the piston rod of the air cylinder 1 is in the slot, i.e. locked, the positioning lock pin 2 cannot rotate, and the wire rope wrapped around the positioning lock pin 2 cannot move, so the position of the support stop iron 5 will not change. When the piston rod of the air cylinder 1 is out of the slot, i.e. unlocked, the positioning lock pin 2 can rotate, and the support stop iron 5 will fall rapidly under its own weight.

[0030] Working principle of the anti-shovel device: When the machine is started normally, the operator turns on the anti-shovel switch, the solenoid valve is energized, the air circuit is opened, and the air joint and quick release valve are rotated to reach the air cylinder 1, so that the piston rod of the air cylinder 1 extends and matches the slot on the positioning lock pin 2, locking the rope 6 connected to the support stop 5, and the support stop 5 is rotated and hung in front of the track plate. When the equipment is powered off or manually operated, the solenoid valve loses power, the air circuit is disconnected, and the air cylinder 1 is reset by its own spring force. The gas in the air cylinder 1 is discharged through the quick release valve, and the piston resets to drive the positioning lock pin 2 to open. The support stop 5 falls under its own weight and falls in front of the electric shovel's walking track plate, thereby realizing the anti-shovel function.

[0031] It is understandable that the support stopper 5 has at least one inclined surface, and the inclined surface is arranged on the crawler side facing the electric shovel. The inclined surface is arranged towards the crawler side, so that the support stopper 5 can quickly achieve the effect of emergency braking of the electric shovel.

[0032] Of course, considering the symmetry of the support stop 5, the support stop 5 has two inclined surfaces, the two inclined surfaces are symmetrically arranged, and any one of the inclined surfaces is arranged on the crawler side facing the electric shovel.

[0033] In some embodiments, a steel pipe 8 can be welded on the mounting frame 7, and the rope 6 coming out of the supporting pulley 4 passes through the steel pipe 8 and then connected to the supporting stop iron 5. In this way, even if the supporting stop iron 5 shakes in actual use, the shaking amplitude will not be large and will not affect the normal travel of the electric shovel crawler. At the same time, during emergency braking, the position where the supporting stop iron 5 falls will not deviate.

[0034] For safety considerations, the rope 6 is a steel wire rope, which has high strength and is not easy to rotate and knot.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-slip device for an electric shovel, characterized in that: include: A mounting frame, wherein the mounting frame is configured on the electric shovel when in use; A supporting unit, wherein the supporting unit is arranged on the mounting frame; A support stopper, wherein the support stopper can move linearly in a vertical direction through the support unit; The power device is configured as follows: when the power device locks the support unit, the support stop cannot move downward in the vertical direction by relying on its own weight; when the power device unlocks the support unit, the support stop can move downward in the vertical direction by relying on its own weight.

2. The anti-shovel slip device of an electric shovel according to claim 1, characterized in that: The support unit includes a support pulley, a positioning seat, a positioning locking pin and a rope. The support pulley is arranged at the end of the mounting frame, the positioning seat is arranged on the mounting frame, one end of the positioning locking pin is rotatably arranged in the positioning seat, and the other end of the positioning locking pin has a slot matching the power device; one end of the rope is connected to the support stop iron and is wound around the positioning locking pin after passing through the support pulley.

3. The anti-shovel slip device of an electric shovel according to claim 2, characterized in that: The power device comprises an air cylinder, and a piston rod of the air cylinder is used to match the clamping groove on the positioning locking pin.

4. The anti-shovel slip device of an electric shovel according to claim 1, characterized in that: The support stopper has at least one inclined surface, and the inclined surface is arranged on the crawler side facing the electric shovel.

5. The anti-shovel slip device of an electric shovel according to claim 1, characterized in that: The support stopper has two inclined surfaces, and the side having the inclined surface is arranged on the crawler side facing the electric shovel.

6. The anti-shovel slip device of an electric shovel according to claim 2, characterized in that: The rope is a steel wire rope.

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