Self-lubricating double-groove pulley for anti-swing suspension system

Abstract

The utility model relates to the technical field of double-groove pulleys, and discloses a self-lubricating double-groove pulley for an anti-swing suspension system, which comprises a pulley, a shaft sleeve, an end ring and an annular oil box, a first groove is formed in the outer side of the pulley, a second groove is formed in the outer side, located on one side of the first groove, of the pulley, a through groove is formed in the inner side of the pulley in a penetrating mode, the shaft sleeve is sleeved with the through groove in a penetrating mode, and the annular oil box is fixedly arranged at one end of the outer side of the shaft sleeve in a sleeving mode. Steel balls are embedded in the inner sides of the limiting grooves, oil storage grooves are formed in the outer sides of the steel balls at equal intervals, through holes are formed between the limiting grooves and the oil injection openings in a penetrating mode, and cotton slivers are glued into the through holes. Lubricating oil in the oil injection port is coated on the outer side of the steel ball through the cotton sliver, the lubricating oil is coated on the outer side of the shaft rod when the steel ball rolls, the self-lubricating purpose is achieved, and the self-lubricating shaft is suitable for wide application and popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to double -groove pulley technical field, concretely is a kind of self-lubricating double -groove pulley for anti-swing suspension system. BACKGROUND

[0002] Anti-swing suspension system refers to the suspension system with swing structure, and is widely used in hoisting equipment such as travelling crane, gantry crane and large crane, and the pulley is an important accessory in the suspension system, which is used to lift heavy objects and can save labor.

[0003] The double-groove pulley is one of many types of pulleys, and a double-groove structure is formed on the surface of the double-groove pulley. The existing double-groove pulley for anti-swing suspension system does not have a self-lubricating structure, and personnel need to apply lubricating oil regularly, which is time-consuming and labor-intensive. Therefore, we propose a self-lubricating double-groove pulley for anti-swing suspension system. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a self-lubricating double-groove pulley for anti-swing suspension system, which solves the problems raised in the background art.

[0006] (II) Technical solution

[0007] The utility model provides the following technical scheme: a self-lubricating double-groove pulley for anti-swing suspension system, comprising a pulley, a shaft sleeve, an end ring and a circular oil box.

[0008] A first groove is formed on the outer side of the pulley, a second groove is formed on the outer side of the pulley on one side of the first groove, and a through groove is formed on the inner side of the pulley, the shaft sleeve is inserted into the through groove, the circular oil box is fixedly sleeved on one end of the outer side of the shaft sleeve, the end ring is sleeved on the outer side of the shaft sleeve away from the circular oil box, limit grooves are formed at equal intervals on the inner side of the shaft sleeve, steel balls are embedded in the limit grooves, oil storage grooves are formed at equal intervals on the outer side of the steel balls, through holes are formed between the limit grooves and the oil inlet, and cotton strips are glued in the through holes.

[0009] Further, a clamping groove is formed at equal intervals on the inner side of the through groove, and a clamping strip is welded at equal intervals on the outer side of the shaft sleeve, and the clamping strip is located in the clamping groove.

[0010] Further, an oil inlet is formed on the top of the circular oil box, and a plug wire is arranged in the oil inlet.

[0011] Further, the bottom end of the cotton strip is located in the oil inlet, and the top end of the cotton strip is located at the bottom of the steel ball.

[0012] Further, the shaft sleeve is provided with threaded teeth on the outer side away from the annular oil box, the end ring is provided with threaded grooves on the inner side, and the top and bottom of the end ring are provided with structural grooves.

[0013] Further, bolt holes are equidistantly provided on one side of the structural grooves, and bolt grooves corresponding to the bolt holes are equidistantly provided on one side of the pulley.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The lubricating oil in the annular oil box is added through the oil injection port, and the plug is screwed into the oil injection port, the lubricating oil permeating the cotton bar is smeared on the surface of the steel ball when the steel ball rolls in the limiting groove, and the lubricating oil on the surface of the steel ball is smeared on the outer side of the shaft rod, achieving the purpose of self-lubrication and reducing the maintenance and maintenance cycle.

[0016] The pulley is provided with a first groove and a second groove on the outer side, the shaft sleeve is inserted into the through groove in the pulley, the end ring is sleeved on the outer side of the shaft sleeve away from the annular oil box, the end ring is screwed on the outer side of the shaft sleeve through the threaded grooves and the threaded teeth, and the end ring is fixed on the shaft sleeve and the pulley by inserting the bolts through the bolt holes into the bolt grooves on one side of the pulley, so that the shaft sleeve is fixed in the through groove, and when the shaft sleeve is inserted into the through groove, the plurality of clamping strips are inserted into the corresponding clamping grooves, so that the shaft sleeve and the pulley are assembled together to form a complete double-groove pulley.

[0017] The self-lubricating double-groove pulley of the anti-swing suspension system is designed in an assembled manner, and can be disassembled and replaced when a single component is damaged, without the need to replace the entire double-groove pulley, thereby saving cost, and the lubricating oil in the oil injection port is smeared on the outer side of the steel ball by the cotton bar, and the lubricating oil is smeared on the outer side of the shaft rod when the steel ball rolls, achieving the purpose of self-lubrication. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a schematic diagram of the pulley, shaft sleeve and end ring structure of the present application;

[0020] Figure 3 It is a schematic diagram of the pulley structure of the present application;

[0021] Figure 4 It is a schematic diagram of the shaft sleeve structure of the present application;

[0022] Figure 5 It is a sectional view of the shaft sleeve of the present application;

[0023] Figure 6This is a schematic structural diagram of the annular oil box of the present utility model;

[0024] Figure 7 This is a schematic diagram of the end ring structure of the utility model;

[0025] In the figure: 1. pulley; 101. through groove; 102. clamping groove; 103. bolt groove; 2. bushing; 201. clamping strip; 202. threaded teeth; 203. keyway; 3. first groove; 4. second groove; 5. end ring; 501. structural groove; 502. threaded groove; 503. bolt hole; 6. annular oil box; 601. oil filling port; 602. blocking wire; 603. limiting groove; 604. steel ball; 605. oil storage tank; 606. through hole; 607. cotton strip. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0027] See also Figures 1-7 In the embodiment of the utility model, the pulley 1, the shaft sleeve 2, the end ring 5 and the annular oil box 6 are included;

[0028] A first groove 3 is provided on the outside of the pulley 1, and a second groove 4 is provided on the outside of the pulley 1 located on the side of the first groove 3. A through groove 101 is provided on the inside of the pulley 1, and the sleeve 2 is sleeved inside the through groove 101. The annular oil box 6 is fixedly sleeved on one end of the outside of the sleeve 2, and the outer side of the sleeve 2 away from the annular oil box 6 is sleeved with an end ring 5. Limiting grooves 603 are equidistantly provided on the inside of the sleeve 2, and steel balls 604 are embedded in the inner side of the limiting grooves 603. Oil storage grooves 605 are equidistantly provided on the outer side of the steel balls 604. A through hole 606 is provided between the limiting groove 603 and the oil filling port 601, and a cotton strip 607 is glued inside the through hole 606.

[0029] Among them, the inner side of the through groove 101 is equidistantly provided with card slots 102, and the outer side of the sleeve 2 is equidistantly welded with card strips 201, which are located inside the card slots 102. When the sleeve 2 is inserted into the through groove 101, the card strip 201 is inserted into the corresponding through groove 101, which will enable the sleeve 2 to drive the pulley 1 to roll.

[0030] Among them, an oil filling port 601 is opened on the top of the annular oil box 6, and a plugging wire 602 is set inside the oil filling port 601. Lubricating oil can be added into the annular oil box 6 through the oil filling port 601, and the plugging wire 602 is used to seal the oil filling port 601.

[0031] The bottom end of the cotton bar 607 is located inside the oil injection port 601, and the top end of the cotton bar 607 is located at the bottom of the steel ball 604.

[0032] The outer side of the shaft sleeve 2 away from the circular oil box 6 is provided with a threaded tooth 202, the inner side of the end ring 5 is provided with a threaded groove 502, and the top and bottom of the end ring 5 are provided with a structure groove 501. The end ring 5 can be screwed to the outer side of the shaft sleeve 2 through the threaded groove 502 and the threaded tooth 202.

[0033] The structure groove 501 is provided with a bolt hole 503 at one side, and the pulley 1 is provided with a bolt groove 103 corresponding to the bolt hole 503 at one side. The end ring 5 can be fixed to one side of the pulley 1 by screwing the bolt through the bolt hole 503 into the bolt groove 103.

[0034] The working principle of the utility model is as follows: the outer side of the pulley 1 is provided with a first groove 3 and a second groove 4, the shaft sleeve 2 is inserted into the through groove 101 in the pulley 1, the end ring 5 is sleeved on the outer side of the shaft sleeve 2 away from the circular oil box 6, the end ring 5 is screwed on the outer side of the shaft sleeve 2 through the threaded groove 502 and the threaded tooth 202, and the end ring 5 is fixed on the shaft sleeve 2 and the pulley 1 by screwing the bolt through the bolt hole 503 into the bolt groove 103 on one side of the pulley 1, so that the shaft sleeve 2 is fixed in the through groove 101. When the shaft sleeve 2 is inserted into the through groove 101, the plurality of clamping strips 201 are inserted into the corresponding clamping grooves 102, so that the shaft sleeve 2 and the pulley 1 are assembled together to form a complete double-groove pulley. The lubricating oil is added into the circular oil box 6 through the oil injection port 601 by unscrewing the plug wire 602, and then the plug wire 602 is screwed into the oil injection port 601. The lubricating oil in the circular oil box 6 penetrates the cotton bar 607. When the shaft rod penetrates the inside of the shaft sleeve 2 and rotates, the steel ball 604 rolls in the limiting groove 603, the lubricating oil penetrating the cotton bar 607 is applied to the surface of the steel ball 604 when the steel ball 604 rolls, and is left in the oil storage groove 605 on the surface of the steel ball 604. The lubricating oil in the oil storage groove 605 is applied to the outer side of the shaft rod by the rolling of the steel ball 604, so that the purpose of self-lubrication is achieved, and the maintenance and maintenance cycle is reduced.

[0035] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A self-lubricating double-groove pulley for an anti-sway suspension system, comprising a pulley (1), a shaft sleeve (2), an end ring (5) and an annular oil box (6); Its characteristics are: A first groove (3) is provided on the outside of the pulley (1), a second groove (4) is provided on the outside of the pulley (1) located on one side of the first groove (3), a through groove (101) is provided on the inside of the pulley (1), the shaft sleeve (2) is sleeved inside the through groove (101), the annular oil box (6) is fixedly sleeved on one end of the outside of the shaft sleeve (2), an end ring (5) is sleeved on the outside of the shaft sleeve (2) away from the annular oil box (6), limiting grooves (603) are equidistantly provided on the inside of the shaft sleeve (2), steel balls (604) are embedded in the inside of the limiting grooves (603), oil storage grooves (605) are equidistantly provided on the outside of the steel balls (604), a through hole (606) is provided between the limiting groove (603) and the oil filling port (601), and a cotton strip (607) is glued inside the through hole (606).

2. The self-lubricating double-groove pulley for an anti-sway suspension system according to claim 1, characterized in that: Clamping grooves (102) are equidistantly formed on the inner side of the through groove (101), and clamping strips (201) are welded equidistantly on the outer side of the shaft sleeve (2), wherein the clamping strips (201) are located inside the clamping grooves (102).

3. The self-lubricating double-groove pulley for an anti-sway suspension system according to claim 1, characterized in that: An oil filling port (601) is provided on the top of the annular oil box (6), and a blocking wire (602) is provided inside the oil filling port (601).

4. The self-lubricating double-groove pulley for an anti-sway suspension system according to claim 1, characterized in that: The bottom end of the cotton strip (607) is located inside the oil filling port (601), and the top end of the cotton strip (607) is located at the bottom of the steel ball (604).

5. The self-lubricating double-groove pulley for an anti-sway suspension system according to claim 1, characterized in that: The outer side of the shaft sleeve (2) away from the annular oil box (6) is provided with thread teeth (202), the inner side of the end ring (5) is provided with a thread groove (502), and the top and bottom of the end ring (5) are both provided with structural grooves (501).

6. The self-lubricating double-groove pulley for an anti-sway suspension system according to claim 5, characterized in that: Bolt holes (503) are uniformly spaced through one side of the structural groove (501), and bolt grooves (103) corresponding to the bolt holes (503) are uniformly spaced on one side of the pulley (1).

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