Self-lubricating mechanism driven by pulley of mechanical grab bucket

Abstract

The utility model discloses a self-lubricating mechanism driven by a mechanical grab bucket pulley, which comprises a grab bucket pulley, an oil pump and a waved plate which is arranged on one side of the pulley and rotates along with the pulley, an oil filling pump comprises an oil storage tank, a self-lubricating piston cylinder body communicated with the oil storage tank and a piston rod, and one end of the cylinder body is provided with an oil outlet. The oil outlet is connected to each oil filling point of the grab bucket through a pipeline and a distributor, the extending end of the piston rod is sleeved with a reset spring, and the waved plate is provided with a concave-convex cambered surface capable of abutting against the end portion of the extending end of the piston rod. The waved plate is driven to rotate through the pulley, so that the piston rod stretches out and draws back, and therefore lubricating oil of the self-lubricating piston cylinder body is extruded and output to all oiling points through the oil outlet. And when the mechanical grab bucket stops running, the pulley and the waved plate also stop rotating along with the mechanical grab bucket, so that the piston rod of the petrol pump stops lubricating operation.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical grabs, specifically relating to a self-lubricating mechanism driven by a pulley for a mechanical grab. Background Technology

[0002] Because mechanical grabs with pulleys have many pins and bearings that require lubrication, manual maintenance is inconvenient, and they require climbing to work, thus posing a higher safety risk.

[0003] Currently, most automatic lubrication systems on the market are electrically driven, requiring batteries to operate. Therefore, these electrically driven automatic lubrication systems suffer from several drawbacks: the pump will continue supplying oil as long as the battery has power, the battery depletes quickly, requiring frequent battery replacements, and operation is cumbersome. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a self-lubricating mechanism driven by a mechanical grab pulley, wherein the lubrication pump adopts a mechanical automatic lubrication structure, which can lubricate as the pulley rotates, and does not lubricate when the pulley is not working.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A self-lubricating mechanism driven by a mechanical grab pulley includes a grab pulley, an oil pump located on the outside of the pulley, and a corrugated plate located on one side of the pulley and rotating with the pulley. The oil pump includes an oil storage tank, a self-lubricating piston cylinder communicating with the oil storage tank, and a piston rod. One end of the cylinder has an oil outlet, which is connected to each oiling point of the grab bucket via a pipeline and a distributor. A return spring is sleeved on the extended end of the piston rod. The corrugated plate has a concave-convex arc surface that can abut against the end of the extended piston rod.

[0007] The self-lubricating piston cylinder is located at the bottom of the oil storage tank and is interconnected with it.

[0008] The self-lubricating piston cylinder is also equipped with a lubricating oil filling port.

[0009] The refueling pump is located on the outside of the pulley seat of the pulley.

[0010] This invention relates to a self-lubricating mechanism driven by a pulley in a mechanical grab bucket. It utilizes a mechanical power supply structure, where the pulley drives a wave plate to rotate, causing the piston rod to extend and retract. This forces lubricating oil from the self-lubricating piston cylinder to be discharged from the oil outlet to various lubrication points. When the mechanical grab bucket stops operating, the pulley and wave plate also stop rotating, thus ceasing the lubrication operation of the oil pump's piston rod. This eliminates the need for battery replacements, reducing the frequency of manual maintenance. Attached Figure Description

[0011] The utility model will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0012] Figure 1 This is a schematic diagram of the installation structure of the self-lubricating mechanism of this utility model;

[0013] Figure 2 for Figure 1 A side view diagram;

[0014] Figure 3 This is a schematic diagram of the structure of the fuel pump of this utility model;

[0015] Figure 4 For along Figure 3 Schematic diagram of the cross section along line AA;

[0016] Figure 5 For along Figure 3 Enlarged cross-sectional view of the middle BB line;

[0017] Figure 6 This is a schematic diagram of the fuel pump installation.

[0018] Figure 7 For along Figure 6 Enlarged cross-sectional view of line AA in the middle;

[0019] Figure 8 This is a three-dimensional schematic diagram of the wave plate and pulley of this utility model;

[0020] Figure 9 This is a schematic diagram showing the connection between the self-lubricating mechanism of this utility model and the pipelines at each lubrication point. Detailed Implementation

[0021] This utility model discloses a self-lubricating mechanism driven by a mechanical grab pulley, such as... Figures 1-9As shown, it includes a grab bucket pulley 1 and a refueling pump 2 located outside the pulley 1. Compared to existing technologies, the difference lies in the addition of a wave plate 3 located on one side of the pulley 1 and rotating with it, and the refueling pump 2 being mechanically driven. The refueling pump 2 is located outside the grab bucket lower support beam pulley 1 seat and specifically includes an oil storage tank 4, a self-lubricating piston cylinder 5 communicating with the oil storage tank 4, and a piston rod 6. The self-lubricating piston cylinder 5 is located at the lower part of the oil storage tank 4 and is interconnected, receiving lubricating oil flowing from the oil storage tank 4 into the cylinder 5. One end of the cylinder 5 has an oil outlet 7, which is connected to various refueling points of the grab bucket via a pipe 8 and a distributor 9, specifically including an upper support rod pin refueling point 10a, an upper pulley shaft refueling point 10b, a lower pulley shaft refueling point 10c, a main pin refueling point 10d, and a lower support rod pin refueling point 10e. The self-lubricating piston cylinder 5 is also equipped with a lubricating oil filling port 11, located on the lower side of the cylinder 5, connected to the inside of the cylinder 5 and the oil reservoir 4, for replenishing lubricating oil. One end of the piston rod 6 is located inside the cylinder 5, and the other end extends out of the cylinder 5, with a return spring 12 fitted on its extended end. The corrugated plate 3 has a continuous and uniformly undulating concave-convex arc surface, which can abut against the extended end of the piston rod 6. The design of this concave-convex arc surface can form peaks and troughs of a fixed frequency.

[0022] The working principle of the self-lubricating mechanism of this utility model is as follows:

[0023] When the grab bucket is in operation, pulley 1 rotates, and the wave plate 3 rotates accordingly. When its convex surface passes by (i.e., the crest), it pushes the piston rod into the cylinder 5, while when its concave surface passes by (i.e., the trough), the return spring 12 drives the piston rod 6 to return to its original position. This reciprocating motion forces the lubricating oil in the cylinder 5 to be output from the oil outlet 7 and enter the pipeline 8 and distributor 9 arranged on the grab bucket, completing the oil injection process to each lubrication point. When the grab bucket stops running, pulley 1 and wave plate 3 also stop rotating, thereby stopping the lubrication operation of the piston rod 6 of the oil pump 2.

[0024] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A self-lubricating mechanism driven by a mechanical grab pulley, comprising a grab pulley and a lubrication pump disposed on the outside of the pulley, characterized in that: It also includes a corrugated plate located on one side of the pulley and rotating with the pulley. The refueling pump includes an oil storage tank, a self-lubricating piston cylinder body communicating with the oil storage tank, and a piston rod. One end of the cylinder body has an oil outlet, which is connected to each refueling point of the grab bucket through a pipeline and a distributor. A return spring is sleeved on the extended end of the piston rod. The corrugated plate has a concave-convex arc surface that can abut against the end of the extended end of the piston rod.

2. The self-lubricating mechanism driven by the pulley of the mechanical grab bucket according to claim 1, characterized in that: The self-lubricating piston cylinder is located at the bottom of the oil storage tank and is interconnected with it.

3. The self-lubricating mechanism for mechanical grab pulley drive according to claim 1 or 2, characterized in that: The self-lubricating piston cylinder is also equipped with a lubricating oil filling port.

4. The self-lubricating mechanism driven by the pulley of the mechanical grab bucket according to claim 1, characterized in that: The refueling pump is located on the outside of the pulley seat of the pulley.

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