A hoisting machine apparatus lubrication device

By designing an automated lubrication device, the problem that crane lubrication devices can only lubricate the chain at specific locations and that manual operation is time-consuming and labor-intensive has been solved. This has enabled automated lubrication of crane chains, improving lubrication efficiency and applicability.

CN117553217BActive Publication Date: 2026-04-21HEFEI CHUNHUA HOISTING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI CHUNHUA HOISTING MASCH CO LTD
Filing Date
2023-11-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing crane lubrication devices can only lubricate the chains at specific locations, which is inconvenient to operate, requires manual operation, is time-consuming and labor-intensive, and reduces lubrication efficiency.

Method used

A lubrication device was designed, comprising a mounting platform, a lubrication box, a locking pipe fitting, a linear adjustment component, and a switch assembly. The device uses a motor to drive an adjusting gear to move an adjusting rack, thereby enabling the horizontal sliding of the locking pipe fitting. This automatically adjusts the relative position of the locking sleeve and the lubrication box, achieving lubrication of the chain at different horizontal positions. The flow of lubricating oil is controlled by a buffer spring and a switch slot block.

Benefits of technology

It enables automated lubrication of crane chains, improving the applicability and efficiency of lubrication and reducing the time and effort required for manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a lubrication device for lifting machinery, relating to the field of lubrication device technology. It includes: a mounting platform with an oil storage chamber on the platform; a lubrication box mounted on the platform, containing a lubrication chamber connected to the oil storage chamber via two oil inlet channels; and a locking pipe fitting slidably mounted on one side of the lubrication box, connected to the lubrication chamber within the box. The lubrication box is equipped with a linear adjustment component that drives the locking pipe fitting closer to or further away from the box. This invention uses an adjusting motor to drive an adjusting gear, which meshes with an adjusting rack, causing the rack, adjusting block, connecting pipe, and locking sleeve to slide horizontally. This adjusts the relative position between the locking sleeve and the lubrication box, thereby locking the crane chain at different horizontal positions, allowing the lubricating oil to lubricate the crane chain and improving the overall applicability of the device.
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Description

Technical Field

[0001] This invention relates to the field of lubrication device technology, specifically to a lubrication device for lifting machinery. Background Technology

[0002] Existing crane lubrication devices, such as the "Lubrication Device for Lifting Machinery" disclosed in patent authorization number CN208687329U, include pulleys, a driving wheel, a driven wheel, a one-way coupling, a reducer, a crank-slider mechanism, a plunger cylinder, and a lubricating oil tank. The pulleys drive the rotation of the driving wheel, which meshes with the driven wheel. The driven wheel is connected to the input shaft of the reducer via the one-way coupling. The output shaft of the reducer is connected to the crank of the crank-slider mechanism. The slider of the crank-slider mechanism is located inside the plunger cylinder and is driven to reciprocate by the crank of the crank-slider mechanism. The oil inlet of the plunger cylinder intermittently draws lubricating oil from the lubricating oil tank. This means that lubrication can only be provided for specific locations of the lifting ropes or chains.

[0003] Cranes, after repeated use over extended periods, become inconvenient to operate. Existing lubrication methods only lubricate the chains at specific locations, which is cumbersome and requires manual operation, resulting in wasted time and labor and reduced lubrication efficiency. Therefore, we provide a lubrication device for lifting machinery. Summary of the Invention

[0004] The technical problem solved by this invention is:

[0005] (1) When using a crane, the crane is used too many times. After a long period of use, the crane equipment becomes inconvenient to use. The existing crane equipment can only lubricate the chain at the corresponding position, which is inconvenient to operate.

[0006] (2) Simultaneously, manual operation is required, which is time-consuming and labor-intensive, reducing lubrication efficiency. This invention can be achieved through the following technical solution: A lubrication device for lifting machinery, comprising:

[0007] Mounting platform, wherein the mounting platform has an oil storage cavity;

[0008] The lubrication box is mounted on a mounting platform and has a lubrication chamber inside. The lubrication chamber and the oil storage chamber are connected through two oil inlet channels.

[0009] A locking fitting is slidably mounted on one side of the lubrication box and is connected to the lubrication cavity inside the lubrication box.

[0010] The lubrication box is equipped with a linear adjustment component that drives the locking pipe fitting to move closer to or further away from the lubrication box;

[0011] A switching assembly is disposed within the lubrication chamber of the lubrication tank and is usable in two oil inlet channels.

[0012] A further technical improvement of the present invention is that: a sealing block is provided on the lubrication box, and the locking pipe penetrates the sealing block and communicates with the lubrication cavity.

[0013] A further technical improvement of the present invention is that the locking fitting includes:

[0014] A connecting pipe is horizontally slidably installed inside the sealing block, and one end of the connecting pipe is connected to the lubrication chamber of the lubrication box;

[0015] A snap-fit ​​sleeve is provided at the end of the connecting pipe away from the lubrication box, and the connecting pipe communicates with the interior of the snap-fit ​​sleeve.

[0016] A further technical improvement of the present invention is that: the snap-fit ​​sleeve is provided with a damping pad, and the damping pad is arranged along the inner wall of the snap-fit ​​sleeve.

[0017] A further technical improvement of the present invention is that the linear adjustment member includes:

[0018] An adjusting block is disposed on the connecting pipe;

[0019] An adjusting rack is provided, which is horizontally mounted on an adjusting block and slidably mounted on a sealing block.

[0020] An adjusting motor is mounted on a sealing block, and the output shaft of the adjusting motor is provided with an adjusting gear, which is meshed with an adjusting rack for transmission.

[0021] A further technical improvement of the present invention is that the switching assembly includes:

[0022] Two switching tubes are respectively located at both ends of the lubrication box and are arranged opposite each other, with one end of the two switching tubes close to each other inside the lubrication cavity;

[0023] Both sides of the two switching tubes, which are close to each other, are provided with discharge troughs.

[0024] Two gate blocks are respectively set inside the lubrication chamber of the lubrication box, and the two gate blocks are arranged vertically and correspondingly. The two gate blocks are respectively sleeved on the outside of the two switch tubes.

[0025] The lubrication box is vertically slidably mounted on the mounting platform, and the upper and lower sides of the lubrication box are connected to the mounting platform through buffer components.

[0026] A further technical improvement of the present invention is that each buffer component includes a buffer spring, which is sleeved outside the switch tube and is located between the mounting platform and the lubrication box.

[0027] A further technical improvement of the present invention is that: the mounting platform is provided with a mounting plate, and the mounting plate is provided with a plurality of mounting threaded holes.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) This device drives the adjusting gear to rotate by adjusting the motor, and the adjusting gear meshes with the adjusting rack, thereby driving the adjusting rack, adjusting block, connecting pipe and snap-fit ​​sleeve to slide horizontally, thereby adjusting the relative position between the snap-fit ​​sleeve and the lubrication box, thereby locking the crane chain at different horizontal positions, causing the lubricating oil to lubricate the crane chain, and improving the applicability of the whole device.

[0030] (2) When the chain slides upward, it will drive the snap-fit ​​sleeve, connecting pipe and lubrication box to slide upward. At the same time, the lubrication box will compress the buffer spring located above. When the buffer spring is compressed to a certain extent, the elastic force provided by the compression of the buffer spring is the same as the damping force between the snap-fit ​​sleeve and the chain. The snap-fit ​​sleeve and lubrication box will stop sliding upward. At this time, the connecting pipe located above will extend into the lubrication chamber, causing the discharge chute on the connecting pipe to move out of the closing block, so that the discharge chute is connected to the lubrication chamber. The lubricating oil in the oil storage chamber of the mounting platform will reach the lubrication chamber through the connecting pipe and the discharge chute located above, so that the lubricating oil flows into the crane chain in the snap-fit ​​sleeve through the connecting pipe, thereby lubricating the crane chain. Conversely, the connecting pipe located below will extend into the lubrication chamber, and the lubricating oil in the oil storage chamber of the mounting platform will reach the lubrication chamber through the connecting pipe and the discharge chute located below, thereby lubricating the crane chain. This allows the crane chain to be lubricated when it is being lifted, improving the lubrication efficiency. Attached Figure Description

[0031] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 For the present invention Figure 1 Enlarged view of a portion at point A;

[0034] Figure 3 This is a schematic diagram of the three-dimensional structure of the snap-fit ​​sleeve of the present invention;

[0035] Figure 4 This is a schematic diagram of the internal structure of the lubrication box of the present invention.

[0036] In the diagram: 1. Mounting platform; 2. Lubrication box; 3. Locking fitting; 301. Connecting pipe; 302. Snap-fit ​​sleeve; 4. Switch assembly; 401. Switch tube; 402. Locking block; 5. Linear adjustment component; 501. Adjusting block; 502. Adjusting rack; 503. Adjusting motor; 504. Adjusting gear; 6. Sealing block; 7. Damping pad; 8. Buffer component; 801. Buffer spring; 9. Mounting plate; 10. Mounting threaded hole. Detailed Implementation

[0037] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0038] Please see Figures 1-4 As shown, this invention proposes a lubrication device for lifting machinery, comprising: a mounting platform 1 with an oil storage chamber on the mounting platform 1; a lubrication box 2 mounted on the mounting platform 1, the lubrication box 2 having a lubrication chamber inside, and the lubrication chamber communicating with the oil storage chamber through two oil inlet channels; a locking pipe 3 slidably mounted on one side of the lubrication box 2, and communicating with the lubrication chamber inside the lubrication box 2; wherein, the lubrication box 2 is provided with a linear adjustment component 5 for driving the locking pipe 3 to move closer to or further away from the lubrication box 2; a switch assembly 4 disposed within the lubrication chamber of the lubrication box 2, and the switch assembly 4 being usable within the two oil inlet channels; the entire device is mounted to the crane via the mounting platform 1. At the corresponding position, the locking fitting 3 is then attached to the outside of the crane chain. The channel between the oil storage chamber and the lubrication chamber is opened by the switch assembly 4, and the lubricating oil in the oil storage chamber of the mounting platform 1 flows into the lubrication chamber. The lubricating oil then flows through the locking fitting 3 to the crane chain attached to the locking fitting 3, thereby lubricating the crane chain and facilitating lifting operations. At the same time, the locking fitting 3 can be moved horizontally on the lubrication box 2 by the linear adjustment component 5, thereby adjusting the relative position between the locking fitting 3 and the lubrication box 2, thus locking the crane chain at different horizontal positions, causing the lubricating oil to lubricate the crane chain, and improving the applicability of the entire device.

[0039] The lubrication box 2 is equipped with a sealing block 6, and the locking pipe 3 passes through the sealing block 6 and communicates with the lubrication cavity; the sealing block 6 seals the locking pipe 3 and the lubrication box 2, thereby improving the sealing performance of the locking pipe 3 when oil is discharged, and preventing the lubricating oil in the lubrication cavity from leaking from the connection between the locking pipe 3 and the lubrication box 2.

[0040] The locking fitting 3 includes: a connecting pipe 301, which is horizontally slidably installed inside the sealing block 6, and one end of the connecting pipe 301 is connected to the lubrication chamber of the lubrication box 2; and a locking sleeve 302, which is located at the end of the connecting pipe 301 away from the lubrication box 2, and the connecting pipe 301 is connected to the interior of the locking sleeve 302; the locking sleeve 302 is locked onto the crane chain, and the lubricating oil in the lubrication chamber of the lubrication box 2 flows into the interior of the locking sleeve 302 through the connecting pipe 301, thereby lubricating the crane chain inside the locking sleeve 302, so that the crane chain completes the lubrication process.

[0041] The snap-fit ​​sleeve 302 is provided with a damping pad 7, and the damping pad 7 is arranged along the inner wall of the snap-fit ​​sleeve 302. The snap-fit ​​sleeve 302 is snap-fitted on the outside of the crane chain. When the crane chain is lifting, the damping pad 7 in the snap-fit ​​sleeve 302 can dampen the sliding between the chain and the snap-fit ​​sleeve 302, thereby fully applying the lubricating oil to the crane chain and improving the lubrication effect of the crane chain.

[0042] The linear adjustment component 5 includes: an adjustment block 501, which is mounted on the connecting pipe 301; an adjustment rack 502, which is horizontally mounted on the adjustment block 501 and slidably mounted on the sealing block 6; and an adjustment motor 503, which is mounted on the sealing block 6 and has an adjustment gear 504 on its output shaft, which meshes with the adjustment rack 502. The adjustment motor 503 drives the adjustment gear 504 to rotate, and the adjustment gear 504 meshes with the adjustment rack 502, thereby causing the adjustment rack 502, adjustment block 501, connecting pipe 301, and locking sleeve 302 to slide horizontally. This adjusts the relative position between the locking sleeve 302 and the lubrication box 2, thereby locking the crane chain at different horizontal positions, allowing lubricating oil to lubricate the crane chain and improving the overall applicability of the device.

[0043] The switch assembly 4 includes: two switch tubes 401, which are respectively disposed at both ends of the lubrication box 2 and are arranged opposite each other, with one end of each switch tube 401 close to the other in the lubrication cavity; each of the two switch tubes 401 has a discharge chute on both sides of the end close to the other; and two locking blocks 402, which are respectively disposed in the lubrication cavity of the lubrication box 2 and are arranged vertically opposite each other, and are respectively sleeved on the outside of the two switch tubes 401; the lubrication box 2 is vertically slidably mounted on the mounting platform 1, and the upper and lower sides of the lubrication box 2 are connected to the mounting platform 1 through buffer members 8; when the chain slides upward, the chain will drive the locking sleeve 302, the connecting tube 301 and the lubrication box 2 to slide upward, and at the same time the lubrication box 2 will compress the buffer member 8 located above. When the buffer member 8 is compressed to a certain extent, When the elastic force provided by the compression of the buffer 8 is the same as the damping force between the snap-fit ​​sleeve 302 and the lifting chain, the snap-fit ​​sleeve 302 and the lubrication box 2 will stop sliding upward. At this time, the upper connecting pipe 301 will extend into the lubrication chamber, causing the discharge chute on the connecting pipe 301 to move out of the closing block 402, thus connecting the discharge chute with the lubrication chamber. The lubricating oil in the oil storage chamber of the mounting platform 1 will reach the lubrication chamber through the upper connecting pipe 301 and the discharge chute, causing the lubricating oil to flow through the connecting pipe 301 to the crane lifting chain in the snap-fit ​​sleeve 302, thereby lubricating the crane lifting chain. Conversely, the lower connecting pipe 301 will extend into the lubrication chamber, and the lubricating oil in the oil storage chamber of the mounting platform 1 will reach the lubrication chamber through the lower connecting pipe 301 and the discharge chute, thereby lubricating the crane lifting chain. This allows the crane lifting chain to be lubricated during lifting, improving lubrication efficiency.

[0044] Each buffer component 8 includes a buffer spring 801, which is sleeved on the outside of the switch tube 401 and located between the mounting platform 1 and the lubrication box 2. When the chain slides up and down, the chain will drive the locking sleeve 302, the connecting tube 301 and the lubrication box 2 to slide up and down. At the same time, the lubrication box 2 will compress the buffer spring 801 to provide resistance to the sliding of the locking sleeve 302, so as to avoid the sliding range of the locking sleeve 302 being too large and affecting the locking of the locking sleeve 302.

[0045] Mounting platform 1 is provided with mounting plate 9, which has multiple mounting threaded holes 10. The entire device is installed on the corresponding position of the crane through the multiple mounting threaded holes 10 on mounting plate 9, thereby facilitating the lubrication of the crane chain by the entire device.

[0046] In use, the entire device is installed onto the corresponding position of the crane through the multiple mounting threaded holes 10 on the mounting plate 9. The snap-fit ​​sleeve 302 is then attached to the outside of the crane's lifting chain. When the lifting chain slides upwards, it drives the snap-fit ​​sleeve 302, connecting pipe 301, and lubrication box 2 to slide upwards as well. Simultaneously, the lubrication box 2 compresses the upper buffer spring 801. When the upper buffer spring 801 is compressed to a certain extent, and the elastic force provided by the compression of the buffer spring 801 is equal to the damping force between the snap-fit ​​sleeve 302 and the lifting chain, the snap-fit ​​sleeve 302 and lubrication box 2 will stop sliding upwards. At this point, the upper connecting pipe 301 will extend into the lubrication chamber. This causes the discharge chute on the connecting pipe 301 to move out of the closing block 402, connecting the discharge chute to the lubrication chamber. The lubricating oil in the oil storage chamber of the mounting platform 1 then flows through the upper connecting pipe 301 and the discharge chute into the lubrication chamber, causing the lubricating oil to flow through the connecting pipe 301 into the crane chain in the snap sleeve 302, thus lubricating the crane chain. Conversely, the lower connecting pipe 301 extends into the lubrication chamber, and the lubricating oil in the oil storage chamber of the mounting platform 1 then flows through the lower connecting pipe 301 and the discharge chute into the lubrication chamber, thus lubricating the crane chain. This allows the crane chain to be lubricated during lifting, improving lubrication efficiency.

[0047] Meanwhile, the adjusting gear 504 can be rotated by the adjusting motor 503, and the adjusting gear 504 is meshed with the adjusting rack 502 for transmission, thereby driving the adjusting rack 502, adjusting block 501, connecting pipe 301 and locking sleeve 302 to slide horizontally, thereby adjusting the relative position between the locking sleeve 302 and the lubrication box 2, thereby locking the crane chain at different horizontal positions, causing the lubricating oil to lubricate the crane chain, and improving the applicability of the entire device.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A lubrication device for lifting machinery, characterized in that, include: Mounting platform (1), with an oil storage chamber on the mounting platform (1); Lubrication box (2), the lubrication box (2) is installed on the mounting platform (1), and the lubrication box (2) is provided with a lubrication cavity, and the lubrication cavity and the oil storage cavity are connected through two oil inlet channels; The locking fitting (3) is slidably installed on one side of the lubrication box (2) and is connected to the lubrication cavity inside the lubrication box (2); Among them, the lubrication box (2) is provided with a linear adjustment component (5) that drives the locking pipe fitting (3) to move closer to or further away from the lubrication box (2); A switch assembly (4) is disposed in the lubrication chamber of the lubrication box (2) and the switch assembly (4) can be used in two oil inlet channels; The switching assembly (4) includes: Two switching tubes (401) are respectively disposed at both ends of the lubrication box (2), and the two switching tubes (401) are disposed opposite to each other, with one end of the two switching tubes (401) close to each other and disposed in the lubrication cavity; Among them, the two switching tubes (401) are provided with discharge troughs on both sides of their respective ends close to each other; Two slot blocks (402) are respectively set in the lubrication chamber of the lubrication box (2), and the two slot blocks (402) are arranged in a vertically corresponding manner. The two slot blocks (402) are respectively sleeved on the outside of the two switch tubes (401). The lubrication box (2) is vertically slidably mounted on the mounting platform (1), and the upper and lower sides of the lubrication box (2) are connected to the mounting platform (1) through buffers (8); Each buffer (8) includes a buffer spring (801) which is sleeved on the outside of the switch tube (401) and is located between the mounting platform (1) and the lubrication box (2).

2. The lubrication device for lifting machinery according to claim 1, characterized in that, The lubrication box (2) is provided with a sealing block (6), and the locking pipe (3) passes through the sealing block (6) and communicates with the lubrication cavity.

3. A lubrication device for lifting machinery according to claim 2, characterized in that, The locking fitting (3) includes: A connecting pipe (301) is horizontally slidably installed inside the sealing block (6), and one end of the connecting pipe (301) is connected to the lubrication cavity of the lubrication box (2); A snap-fit ​​sleeve (302) is provided at the end of the connecting pipe (301) away from the lubrication box (2), and the connecting pipe (301) is in communication with the interior of the snap-fit ​​sleeve (302).

4. A lubrication device for lifting machinery according to claim 3, characterized in that, The snap-fit ​​sleeve (302) is provided with a damping pad (7), and the damping pad (7) is arranged along the inner wall of the snap-fit ​​sleeve (302).

5. A lubrication device for lifting machinery according to claim 3, characterized in that, The linear adjustment element (5) includes: An adjusting block (501) is provided on the connecting pipe (301); Adjusting rack (502), which is horizontally arranged on adjusting block (501) and slidably mounted on sealing block (6); An adjusting motor (503) is mounted on a sealing block (6), and the output shaft of the adjusting motor (503) is provided with an adjusting gear (504), and the adjusting gear (504) is meshed with an adjusting rack (502) for transmission connection.

6. A lubrication device for lifting machinery according to claim 1, characterized in that, The mounting platform (1) is provided with a mounting plate (9), and the mounting plate (9) is provided with a plurality of mounting thread holes (10).

Citation Information

Patent Citations

  • Jack -up mechanical equipment lubricating arrangement

    CN208687329U

  • Automatic telescopic steel wire rope lubricating device

    CN111442175A

  • Elevator steel wire rope lubricating device

    CN217201520U