Self-lubricating device for steel wire rope of crane

Abstract

The utility model relates to the technical field of steel wire rope lubrication, in particular to a self-lubricating device for a crane steel wire rope. The device comprises an inverted-U-shaped connecting frame, a lubricating box is arranged in the middle of the bottom of the connecting frame, an oil inlet is formed in one side of the lubricating box, the two ends of the bottom of the connecting frame are connected through a fixing shaft, the fixing shaft is rotationally connected with a pulley, a steel wire rope is erected on the pulley, and lubricating mechanisms are arranged on the two sides of the pulley and fixedly connected with the connecting frame. A circle of circulation holes are formed in the side, close to the steel wire rope, of the lubricating mechanism. The lubricating mechanisms are arranged on the two sides of the pulley, when the steel wire rope moves along the pulley, lubricating oil in the lubricating mechanisms flows out through the circulating holes, the surface of the pulley and the steel wire rope can be lubricated, and the lubricating oil is smeared on the surface of the steel wire rope body through the circulating holes in the running process of the crane to ensure sufficient lubricating; the service life of the steel wire rope body is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of steel wire rope lubrication, in particular to a self-lubricating device for a crane steel wire rope. Background Art

[0002] Wire ropes are often used in crane operations. The damage of wire ropes is generally manifested as wear, fatigue and corrosion of the wires. If the wire ropes do not maintain a certain oil content during use, their service life will be affected. Therefore, maintenance of the wire ropes is very necessary.

[0003] In existing technologies, both surface lubrication and lubrication of the internal rope core require manual maintenance. This results in a large workload for operators to stop and lubricate the wire rope, and the lubrication effect is not timely, which may also affect the safe operation of the crane. Existing crane wire rope lubrication is mostly performed manually and periodically. During the lubrication process, the operator needs to come into direct contact with the wire rope, which poses safety risks such as hand punctures and personal collisions. In addition, manual lubrication is difficult to ensure uniform lubrication, resulting in poor lubrication effect, which can easily cause uneven wear and accelerated aging of the wire rope. At the same time, the process of adding lubricant for operators is relatively inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a self-lubricating device for a crane wire rope, which can realize self-lubrication of the wire rope and is convenient for an operator to add lubricating oil.

[0005] The utility model provides a self-lubricating device for a crane wire rope, comprising an inverted U-shaped connecting frame, a lubrication box being provided in the middle of the bottom of the connecting frame, an oil inlet being provided on one side of the lubrication box, two ends of the bottom of the connecting frame being connected by a fixed shaft, the fixed shaft being rotatably connected to a pulley, a wire rope being laid on the pulley, lubrication mechanisms being provided on both sides of the pulley, the lubrication mechanisms being fixedly connected to the connecting frame, the top of the lubrication mechanism being communicated with the lubrication box, and a circle of circulation holes being provided on the side of the lubrication mechanism close to the wire rope.

[0006] Preferably, the lubrication mechanism includes a shell fixedly connected to the connecting frame, the top of the shell is connected to the lubrication box through a transmission pipe, the shell is provided with a circle of circulation holes on the side close to the wire rope, the inner side of the shell is provided with a groove corresponding to the circulation holes, a sponge ring is provided in the groove, and an extrusion plate is provided inside the shell, and the extrusion plate can move axially along the fixed axis to extrude the sponge ring.

[0007] Preferably, a circle of protrusions is provided on the extrusion plate corresponding to the grooves.

[0008] Preferably, a guiding cotton thread is provided in the transmission tube, and the bottom of the guiding cotton thread contacts the sponge ring.

[0009] Preferably, the shell includes a mounting plate and a mounting sleeve that are engaged with each other, the mounting plate is fixedly connected to the connecting frame, a plurality of limit blocks are provided on the outside of the mounting plate, and corresponding limit grooves are provided on the mounting sleeve, the limit grooves are engaged with the limit blocks, and the mounting plate is connected to the extrusion plate through a telescopic rod.

[0010] Preferably, a bolt is provided on a side wall of the mounting sleeve, and the bolt can pass through the mounting sleeve and abut against the mounting plate.

[0011] Preferably, a knob is provided at one end of the bolt away from the mounting plate.

[0012] Preferably, a hanging hole is provided in the center of the top of the connecting frame.

[0013] Preferably, the side wall of the lubrication box is provided with an observation window, and the observation window is made of transparent material.

[0014] Preferably, a bearing is provided between the pulley and the fixed shaft.

[0015] Beneficial effects:

[0016] The utility model provides lubrication mechanisms on both sides of the pulley. When the wire rope moves along the pulley, the lubricating oil inside the lubrication mechanism flows out through the circulation holes, which can lubricate the pulley surface and the wire rope. During the operation of the crane, the lubricating oil is applied to the surface of the wire rope body through the circulation holes to ensure sufficient lubrication, thereby effectively extending the service life of the wire rope body.

[0017] The utility model further provides a lubrication box to provide lubricating oil for the lubrication mechanism, and an oil inlet provided on one side of the lubrication box can simply and conveniently add lubricating oil into the lubrication box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0021] Figure 3This is a schematic diagram of the cross-sectional three-dimensional structure of the lubrication structure of the utility model;

[0022] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model.

[0023] Description of reference numerals:

[0024] 1-connecting frame, 101-hanging hole, 102-lubrication box, 103-observation window, 104-transmission pipe, 105-oil inlet, 106-guide cotton thread, 2-lubrication mechanism, 201-mounting plate, 202-mounting sleeve, 203-knob, 204-limit block, 205-telescopic rod, 206-extrusion plate, 207-sponge ring, 208-protrusion, 209-circulation hole, 3-wire rope, 4-fixed shaft, 5-pulley. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0028] Example 1

[0029] like Figure 1-4 As shown, a self-lubricating device for a crane wire rope includes an inverted U-shaped connecting frame 1, and a hanging hole 101 is opened in the center of the top of the connecting frame 1. The hanging hole 101 is located on the symmetry axis of the connecting frame 1, which is convenient for ensuring the stability of the suspended connecting frame 1 and effectively preventing the connecting frame 1 from tilting during suspension.

[0030] A lubrication box 102 is provided in the middle of the bottom of the connecting frame 1, and an oil inlet 105 is provided on one side of the lubrication box 102. The oil inlet 105 is inclined upward, and the upper end of the oil inlet 105 is higher than the lubrication box 102 to prevent the lubricating oil in the lubrication box 102 from overflowing; an observation window 103 is provided on the other side. The observation window 103 is made of transparent material, which is convenient for the operator to observe the liquid level in the lubrication box 102 and replenish the liquid in time.

[0031] The two ends of the bottom of the connecting frame 1 are connected by a fixed shaft 4, which is rotatably connected to the pulley 5. A bearing is provided between the pulley 5 and the fixed shaft 4 to ensure smooth rotation of the pulley 5. The wire rope 3 is mounted on the pulley 5. A lubrication mechanism 2 is provided on both sides of the pulley 5. The lubrication mechanism 2 includes a housing fixedly connected to the connecting frame 1, the housing including a mounting plate 201 and a mounting sleeve 202 that engage with each other. The mounting plate 201 is fixedly connected to the connecting frame 1. A plurality of limit blocks 204 are radially provided on the outer side of the mounting plate 201. The mounting sleeve 202 is provided with corresponding limit grooves. The limit grooves engage with the limit blocks 204. The one-to-one correspondence between the limit blocks 204 and the limit grooves can accelerate the docking between the mounting plate 201 and the mounting sleeve 202, making installation more convenient. A bolt is provided on the side wall of the mounting sleeve 202. The bolt can pass through the mounting sleeve 202 and abut against the mounting plate 201. A knob 203 is provided on the end of the bolt away from the mounting plate 201. The knob 203 can be used to rotate the bolt to abut against the mounting plate 201.

[0032] The mounting sleeve 202 is provided with a circle of circulation holes 209 along the outer circumference of the pulley 5 on the side close to the pulley 5. The steel wire rope 3 is adjacent to the circulation holes 209. A groove is provided on the inner side of the mounting sleeve 202 corresponding to the circulation holes 209. A sponge ring 207 is provided in the groove. A transmission pipe 104 is provided on the top of the mounting sleeve 202. The interior of the mounting sleeve 202 is connected to the lubrication box 102 through the transmission pipe 104. A guide cotton thread 106 is provided in the transmission pipe 104. The bottom of the guide cotton thread 106 contacts the sponge ring 207, guiding the lubricating oil in the lubrication box 102 into the sponge ring 207, while preventing the lubricating oil from flowing too fast. The sponge ring 207 is provided to absorb and store the lubricating oil, effectively preventing the lubricating oil from flowing out of the circulation hole 209 too fast or at an uneven flow rate, thereby ensuring the stability of the lubrication effect.

[0033] A squeeze plate 206 is also provided within the mounting sleeve 202. A cavity is formed between the squeeze plate 206 and the mounting sleeve 202. The transmission tube 104 is connected to the cavity. The squeeze plate 206 can move axially along the fixed shaft 4 to squeeze the sponge ring 207. The mounting plate 201 is connected to the squeeze plate 206 via a telescopic rod 205. A circle of protrusions 208 is provided on the squeeze plate 206 corresponding to the groove. The protrusions 208 can squeeze the sponge ring 207. The telescopic rod 205 can be a micro-electric telescopic rod 205 that can be periodically extended and retracted. The protrusions 208 squeeze the sponge ring 207, squeezing the lubricating oil adsorbed inside the sponge ring 207 and overflowing through the circulation hole 209 onto the surface of the pulley 5 and the surface of the wire rope 3. This can fully lubricate the wire rope 3 during operation of the crane, thereby extending the service life of the wire rope 3.

[0034] Working process:

[0035] Lubricating oil is added to the lubrication box 102 through the oil inlet 105, and the lubricating oil is adsorbed and guided to the inside of the installation sleeve 202 by the guide cotton thread 106 in the transmission tube 104, and the guide cotton thread 106 contacts the sponge ring 207, so that the sponge ring 207 can smoothly adsorb and store the lubricating oil; the extrusion plate 206 moves back and forth under the action of the telescopic rod 205, squeezing the sponge ring 207, so that the lubricating oil adsorbed in the sponge ring 207 is squeezed out and overflows to the surface of the pulley 5 and the surface of the wire rope 3 through the circulation hole 209. The wire rope 3 can be lubricated when sliding on the surface of the pulley 5. The whole process is simple and smooth.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A crane wire rope self-lubricating device, characterized in that: It includes an inverted U-shaped connecting frame, a lubrication box is provided in the middle of the bottom of the connecting frame, an oil inlet is provided on one side of the lubrication box, the two ends of the bottom of the connecting frame are connected by a fixed shaft, the fixed shaft is rotatably connected to the pulley, the wire rope is laid on the pulley, and lubrication mechanisms are provided on both sides of the pulley, the lubrication mechanisms are fixedly connected to the connecting frame, the top of the lubrication mechanism is communicated with the lubrication box, and the lubrication mechanism is provided with a circle of circulation holes near the side of the wire rope.

2. The crane wire rope self-lubricating device according to claim 1, characterized in that: The lubrication mechanism includes a shell fixedly connected to the connecting frame, the top of the shell is connected to the lubrication box through a transmission pipe, the shell is provided with a circle of circulation holes on the side close to the wire rope, the inner side of the shell is provided with a groove corresponding to the circulation holes, a sponge ring is provided in the groove, and an extrusion plate is provided inside the shell, and the extrusion plate can move axially along the fixed axis to extrude the sponge ring.

3. The crane wire rope self-lubricating device according to claim 2, characterized in that: The extrusion plate is provided with a circle of protrusions corresponding to the grooves.

4. The crane wire rope self-lubricating device according to claim 2, characterized in that: A guiding cotton thread is provided in the transmission tube, and the bottom of the guiding cotton thread contacts the sponge ring.

5. The crane wire rope self-lubricating device according to claim 2, characterized in that: The shell includes a mounting plate and a mounting sleeve that are engaged with each other. The mounting plate is fixedly connected to the connecting frame. A plurality of limit blocks are provided on the outside of the mounting plate. The mounting sleeve is provided with corresponding limit grooves. The limit grooves are engaged with the limit blocks. The mounting plate is connected to the extrusion plate through a telescopic rod.

6. The crane wire rope self-lubricating device according to claim 5, characterized in that: Bolts are provided on the side walls of the mounting sleeve, and the bolts can pass through the mounting sleeve and abut against the mounting plate.

7. The crane wire rope self-lubricating device according to claim 6, characterized in that: A knob is provided at one end of the bolt away from the mounting plate.

8. The crane wire rope self-lubricating device according to claim 1, characterized in that: A hanging hole is provided at the center of the top of the connecting frame.

9. The crane wire rope self-lubricating device according to claim 1, characterized in that: The side wall of the lubrication box is provided with an observation window, and the observation window is made of transparent material.

10. The crane wire rope self-lubricating device according to claim 1, characterized in that: A bearing is provided between the pulley and the fixed shaft.

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