Lubricating device for walking of crane

Abstract

The invention relates to the technical field of hoisting equipment, and particularly discloses a lubricating device for walking of a crane, which is used for solving the problem that lubricating oil cannot be automatically added in the prior art. Comprising a lubricating box set arranged on the outer side of a wheel shaft, the outer end of the lubricating box set is connected with a walking wheel, the lubricating box set comprises a second box cylinder and a first box cylinder, supporting bearings matched with the walking wheel are arranged in the center of the second box cylinder and the center of the first box cylinder, and bearing plugging rings are arranged on the outer sides of the supporting bearings. The device is designed according to existing requirements, buoyancy provided by lubricating oil can be used as a trigger source, oil is supplemented in time when the buoyancy is insufficient, namely the liquid level of the lubricating oil is insufficient, manual operation is not needed for oil supplementing, meanwhile, rotating force generated by walking of the hoisting equipment is used for driving the lubricating oil to continuously enter a lubricating area, and the lubricating effect is improved. And lubricating convection is generated, so that heat at the position of the bearing can be reduced, and the bearing can be lubricated.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, in particular to a lubricating device for traveling cranes. Background Art

[0002] Cranes are commonly used auxiliary equipment for cargo loading and unloading. Depending on the site environment, the cranes used are also different. Electric hoist bridge cranes are a type of lifting device commonly used for vertical lifting operations. Electric hoist bridge cranes have a high working intensity. To ensure their normal operation, daily maintenance of machinery, lubrication and electrical aspects is required. The existing patent with authorization announcement number CN116902813B discloses an electric hoist bridge crane with an automatic lubricant addition function, which records a lubricant addition component. The lubricant addition component includes an oil tank and a plug-in mechanism. The plug-in mechanism and the oil tank adopt a split structure. The oil inlet of the oil tank adopts a sealing plug, a first compression spring and other structures. The plug-in mechanism adopts a mounting frame and an oil filling pipe head and other structures. The two can be plugged in or separated through the sliding action of the vehicle body.

[0003] However, the above-mentioned adding method still requires active human operation. If the staff fails to operate in time, the lifting equipment will lack lubrication and be damaged, which is undoubtedly very serious. Now a lifting lubrication method that can replenish the oil in time when the oil is insufficient is needed.

[0004] Based on this, a lubrication device for crane travel is now provided, which can eliminate the disadvantages of the existing device. Summary of the invention

[0005] The purpose of the present invention is to provide a lubricating device for crane travel, which solves the problem in the prior art that lubricating oil cannot be added by itself.

[0006] To achieve the above object, the present invention provides the following technical solutions: A lubrication device for crane travel, including a lubrication box group arranged on the outside of a wheel axle, the outer end of the lubrication box group is connected to the travel wheel, the lubrication box group includes a second box barrel and a first box barrel, the center positions of the second box barrel and the first box barrel are provided with support bearings matching the travel wheel, the outside of the support bearing is provided with a bearing sealing ring, there is a gap between the second box barrel and the first box barrel, a center ring plate is rotatably provided at the gap position, the center ring plate, the second box barrel and the first box barrel constitute a lubrication chamber for storing lubricating oil, a heat dissipation component for cooling the lubricating oil is provided on the outside of the first box barrel, the outer side of the center ring plate is connected to the lifting body through a positioning cross bar, a feeding port is provided on the upper end of the center ring plate, a movable cover is detachably provided on the upper end of the feeding port, a connecting pipe is provided on the top of the movable cover, and the connecting pipe is connected to an automatic oiling component for replenishing lubricating oil into the interior thereof.

[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional solution: the automatic oil filling assembly includes a main oil pipe, a branch pipe is provided on the outside of the main oil pipe, a buoyancy throttling unit is provided between the branch pipe and the connecting pipe, the main oil pipe is connected to the oil outlet end of the storage oil tank, and the storage oil tank and the main oil pipe are fixedly arranged on the lifting body.

[0008] In an optional scheme: the buoyancy throttling unit includes a connecting box that connects the main oil pipe and the connecting pipe, an isolation block is provided inside the connecting box, a blocking slide is opened at the bottom of the isolation block, a movable baffle is slidably provided in the blocking slide, the upper end of the movable baffle is connected to the top of the blocking slide through a blocking spring, a movable opening is provided on the movable baffle, a fixed baffle that fits the movable baffle is provided at the lower end of the isolation block, a fixed opening corresponding to the movable opening is provided on the fixed baffle, and the lower end of the movable baffle is connected to the buoyancy traction member.

[0009] In an optional scheme: the buoyancy traction member includes a floating guide sleeve arranged at the bottom position of the center ring plate, a vertical rod is slidably provided in the floating guide sleeve, a floating ball is provided at the upper end of the vertical rod, the lower end of the floating ball is connected to the traction block, the traction block is connected to one end of the traction wire, the other end of the traction wire passes through the first guide ring and the second guide ring in sequence and is connected to the bottom of the movable partition, the first guide ring and the second guide ring are fixed on the auxiliary positioning rod, and the end of the auxiliary positioning rod is connected to the lifting body.

[0010] In an optional solution: a scale is fixedly provided on the auxiliary positioning rod, an indicator bar is slidably provided on the scale, and an end of the indicator bar is connected to the traction wire through an indicator connecting rod.

[0011] In an optional solution: the automatic oil filling assembly also includes an oil guide member for delivering oil into the lubrication area of ​​the support bearing.

[0012] In an optional scheme: the oil guide member includes a filter box arranged below the feeding port, the outer side of the filter box is provided with a sliding notch, a filter drawer plate for filtering the lubricating oil is slidably provided at the position of the sliding notch, a cross bar is arranged at the upper end of the filter box, the cross bar is connected to the hanging pipe, the top of the hanging pipe is connected to the movable cover, the inside of the hanging pipe is provided with an oil guide channel connected to the connecting pipe, the lower end of the filter box is symmetrically provided with oil outlets, a guide hose is fixed at the position of the oil outlet to guide the oil toward the oil filling groove ring position of the supporting bearing, the guide hose is made of elastic rubber, a plurality of oil filling cylinders are arranged in an array on the inner sides of the first box barrel and the second box barrel, a loading port is provided on the side of the oil filling cylinder facing the filter box, and the loading port is inclined upward.

[0013] In an optional solution, the oil storage inner cavity of the oil cylinder is a tapered chamber with a wide inner portion and a small outer end.

[0014] In an optional solution: the heat dissipation assembly includes a plurality of heat dissipation fins distributed on the outer side of the first casing, the heat dissipation fins are used to increase the heat dissipation surface, and a plurality of fan blades for guiding airflow are arrayed on the first casing outside the heat dissipation fins.

[0015] In an optional solution: a sealing ring matching the second casing and the first casing is provided on the outer side of the central ring plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention is designed according to existing needs. The buoyancy provided by the lubricating oil can be used as a trigger source. When the buoyancy is insufficient, that is, the lubricating oil level is insufficient, it can be replenished in time without manual operation to replenish the oil. At the same time, the rotational force generated by the movement of the lifting equipment is used to drive the lubricating oil to continuously enter the lubrication area, generating lubricating convection, which helps to reduce the heat at the bearing position and lubricate the bearing. In addition, the lubricating oil can be filtered to collect fine particles generated by wear, which helps to increase the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of one side of the present invention.

[0018] Figure 2 It is a structural schematic diagram of another side of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the travel wheel and lubrication box assembly of the present invention.

[0020] Figure 4 For the present invention Figure 3 A partial enlarged view of the structure at point A in the middle.

[0021] Figure 5 It is a schematic diagram of the internal structure of one side of the lubrication box assembly of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the other side inside the lubrication box assembly of the present invention.

[0023] Figure 7 It is a structural schematic diagram of one side of the buoyancy throttling unit of the present invention.

[0024] Figure 8 It is a structural schematic diagram of the other side of the buoyancy throttling unit of the present invention.

[0025] Fig. 9 It is a schematic diagram of the filter box structure of the present invention.

[0026] Reference numerals: oil storage tank 100, main oil pipe 101, branch pipe 102, connecting pipe 103, positioning cross bar 104; Connecting box 200, isolation block 201, blocking chute 202, blocking spring 203, fixed partition 204, movable partition 205, fixed opening 206, movable opening 207; Traveling wheels 300; Lubrication box assembly 400, movable cover 401, feeding port 402, fan blades 403, heat dissipation fins 404, traction wire 405, auxiliary positioning rod 406, support bearing 407, first box barrel 408, center ring plate 409, second box barrel 410, hanging pipe 411, filter plate 412, filter box 413, guide hose 414, oil filling barrel 415, oil filling groove ring 416, float 417, first guide ring 418, traction block 419, scale 420, second guide ring 421, floating guide sleeve 422, indicator strip 423, bearing blocking ring 424, indicator connecting rod 425; Axle 500 and lifting body 600. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] like Figure 1-Figure 9As shown, an embodiment of the present invention provides a lubrication device for traveling of a crane, comprising a lubrication box group 400 arranged on the outside of a wheel axle 500, wherein the outer end of the lubrication box group 400 is connected to the traveling wheel 300, and the lubrication box group 400 comprises a second box barrel 410 and a first box barrel 408, wherein a support bearing 407 matching the traveling wheel 300 is arranged at the center of the second box barrel 410 and the first box barrel 408, and a bearing sealing ring 424 is arranged on the outside of the support bearing 407, and the bearing sealing ring 424 is arranged between the outer ring and the inner ring of the bearing, so as to achieve sealing, and there is a gap between the second box barrel 410 and the first box barrel 408, and a center ring plate 409 is rotatably arranged at the gap position. The center ring plate 409, the second box barrel 410 and the first box barrel 408 constitute a lubrication chamber for storing lubricating oil. A heat dissipation component for cooling the lubricating oil is provided on the outside of the first box barrel 408. The outside of the center ring plate 409 is connected to the lifting body 600 through a positioning cross bar 104. A feeding port 402 is provided on the upper end of the center ring plate 409. A movable cover 401 is detachably provided on the upper end of the feeding port 402. A connecting pipe 103 is provided on the top of the movable cover 401. The connecting pipe 103 is connected to an automatic oil filling component for replenishing lubricating oil therein. The oil is replenished to the lubrication chamber in time through the automatic oil filling component without manual operation by the staff. The automatic oil filling assembly includes a main oil pipe 101, a branch pipe 102 is arranged outside the main oil pipe 101, a buoyancy throttling unit is arranged between the branch pipe 102 and the connecting pipe 103, the main oil pipe 101 is connected with the oil outlet end of the storage tank 100, the storage tank 100 and the main oil pipe 101 are fixedly arranged on the lifting body 600, when the oil in the lubricating oil chamber is insufficient, the buoyancy throttling unit will be triggered, so that the main oil pipe 101 and the connecting pipe 103 are connected, and the oil will smoothly enter the lubrication chamber, on the contrary, when the oil is sufficient, the buoyancy throttling unit will not be triggered, and the oil will not be actively replenished, and the replenishment here is completely based on the height of the oil, and no manual operation is required; The buoyancy throttling unit includes a connecting box 200 connecting the main oil pipe 101 and the connecting pipe 103, an isolation block 201 is provided inside the connecting box 200, a blocking slide 202 is provided at the bottom of the isolation block 201, a movable partition 205 is slidably provided in the blocking slide 202, the upper end of the movable partition 205 is connected to the top of the blocking slide 202 through a blocking spring 203, a movable opening 207 is provided on the movable partition 205, a fixed partition 204 that fits the movable partition 205 is provided at the lower end of the isolation block 201, and a fixed opening 206 corresponding to the movable opening 207 is provided on the fixed partition 204. The lower end of the movable baffle 205 is connected to the buoyancy traction member. When the lubricating oil is sufficient, the buoyancy traction member can generate a downward pulling force on the movable baffle 205. At this time, the movable port 207 and the fixed port 206 are staggered, so the main oil pipe 101 and the connecting pipe 103 are cut off. However, when the oil in the lubricating oil chamber is insufficient, the buoyancy traction member lacks sufficient traction. At this time, under the pull of the blocking spring 203, the movable baffle 205 moves upward, so that the movable port 207 coincides with the fixed port 206. At this time, the main oil pipe 101 and the connecting pipe 103 are connected, and the oil will enter the lubricating oil chamber along the main oil pipe 101 and the connecting pipe 103 to complete the automatic oil replenishment. The buoyancy traction member includes a floating guide sleeve 422 arranged at the bottom position of the center ring plate 409, a vertical rod is slidably provided in the floating guide sleeve 422, a floating ball 417 is provided at the upper end of the vertical rod, the lower end of the floating ball 417 is connected to the traction block 419, the traction block 419 is connected to one end of the traction wire 405, the other end of the traction wire 405 passes through the first guide ring 418 and the second guide ring 421 in sequence and is connected to the bottom of the movable partition 205, the first guide ring 418 and the second guide ring 421 are fixed on the auxiliary positioning rod 406, the end of the auxiliary positioning rod 406 is connected to the lifting body 600, when the floating ball 417 is subjected to the buoyancy of the lubricating oil, the traction block 419 will generate traction on the lower end of the traction wire 405, and the upper end of the traction wire 405 will generate tension on the lower end of the movable partition 205, thereby providing power for the buoyancy throttling unit; A scale 420 is fixedly provided on the auxiliary positioning rod 406, and an indicator bar 423 is slidably provided on the scale 420. The end of the indicator bar 423 is connected to the traction wire 405 through an indicator connecting rod 425. When the traction wire 405 moves, the indicator connecting rod 425 drives the indicator bar 423 to slide along the scale 420, so that the liquid level can be observed. The automatic oil filling assembly also includes an oil guide member for delivering oil into the lubrication area of ​​the support bearing 407, and the oil guide member is used to guide the lubricating oil, thereby ensuring the fluidity of the oil, so as to take away the heat at the position of the support bearing 407; The oil guide member includes a filter box 413 arranged below the feed port 402, a sliding notch is arranged on the outer side of the filter box 413, a filter drawer plate 412 for filtering the lubricating oil is slidably arranged at the position of the sliding notch, a cross bar is arranged on the upper end of the filter box 413, the cross bar is connected to the hanging tube 411, the top of the hanging tube 411 is connected to the movable cover 401, an oil guide channel connected to the connecting pipe 103 is arranged inside the hanging tube 411, oil outlets are symmetrically arranged on both sides of the lower end of the filter box 413, and a guide hose 414 is fixed at the oil outlet position to guide the oil toward the oil filling groove ring 416 position of the support bearing 407, and the guide hose 414 is made of elastic rubber, so that there will be no interference problem when taking it out, the first box barrel 408 and the second box barrel 410 There are multiple oil filling cylinders 415 arranged in an array on the inner side. The oil filling cylinder 415 is provided with a loading port on the side facing the filter box 413, and the loading port is tilted upward. When the first box cylinder 408 and the second box cylinder 410 rotate, the oil filling cylinder 415 will be submerged below the liquid surface to complete the oil filling operation. The oil storage cavity of the oil filling cylinder 415 is a conical chamber with a small internal wide end. Since the oil filling cylinder 415 here is tilted, the lubricating oil inside the oil filling cylinder 415 will overflow only when it rotates to the vicinity of the filter box 413. At this time, the poured lubricating oil will flow into the filter box 413, and the lubricating oil will be filtered by the filter pumping plate 412 to complete the purification. The purified oil will enter the oil filling groove ring 416 along the guide hose 414, thereby lubricating and cooling the support bearing 407; The heat dissipation assembly includes a plurality of heat dissipation fins 404 distributed on the outer side of the first barrel 408, and the heat dissipation fins 404 are used to increase the heat dissipation surface. A plurality of fan blades 403 for guiding the flow of air are distributed in an array on the first barrel 408 outside the heat dissipation fins 404, so that when the first barrel 408 rotates, the fan blades 403 will accelerate the flow of air outside the first barrel 408, thereby assisting the heat dissipation of the oil and helping to ensure the lubrication effect; A sealing ring matching the second box barrel 410 and the first box barrel 408 is provided on the outer side of the central ring plate 409 to ensure the sealing performance of the chamber.

[0029] Working principle: In actual use, when the float 417 is subjected to the buoyancy of the lubricating oil, the traction block 419 will generate traction on the lower end of the traction wire 405, and the upper end of the traction wire 405 will generate pulling force on the lower end of the movable partition 205. At this time, the movable port 207 and the fixed port 206 are staggered, so the main oil pipe 101 and the connecting pipe 103 are cut off. However, when the oil in the lubricating oil chamber is insufficient, the buoyancy traction member lacks sufficient traction. At this time, under the pull of the blocking spring 203, the movable partition 205 moves upward, so that the movable port 207 coincides with the fixed port 206. At this time, the main oil pipe 101 and the connecting pipe 103 are connected, and the oil will enter the lubricating oil chamber along the main oil pipe 101 and the connecting pipe 103 to complete the automatic oil replenishment. When the first barrel 408 and the second barrel 410 rotate, the oil filling barrel 415 will be submerged below the liquid surface to complete the oil filling operation. The oil storage cavity of the oil filling barrel 415 is a conical chamber with a small internal wide port. Since the oil filling barrel 415 here is arranged at an angle, only when it rotates to the vicinity of the filter box 413, the lubricating oil inside the oil filling barrel 415 will overflow. At this time, the poured lubricating oil will flow into the filter box 413, and the lubricating oil will be filtered by the filter pump 412 to complete the purification. The purified oil will enter the oil filling groove ring 416 along the guide hose 414, thereby lubricating and cooling the support bearing 407. When the first barrel 408 rotates, the fan blades 403 will accelerate the airflow outside the first barrel 408, thereby assisting the heat dissipation of the oil and helping to ensure the lubrication effect.

[0030] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lubrication device for traveling crane, comprising a lubrication box assembly (400) arranged outside a wheel axle (500), wherein the outer end of the lubrication box assembly (400) is connected to a traveling wheel (300), characterized in that: The lubrication box assembly (400) comprises a second box barrel (410) and a first box barrel (408); a support bearing (407) matching the walking wheel (300) is provided at the center of the second box barrel (410) and the first box barrel (408); a bearing sealing ring (424) is provided on the outside of the support bearing (407); a gap exists between the second box barrel (410) and the first box barrel (408); a center ring plate (409) is rotatably provided at the gap position; the center ring plate (409), the second box barrel (410) and the first box barrel (408) constitute A lubrication chamber for storing lubricating oil is formed, a heat dissipation component for cooling the lubricating oil is provided on the outer side of the first box tube (408), the outer side of the center ring plate (409) is connected to the lifting body (600) via a positioning cross bar (104), a feeding port (402) is provided on the upper end of the center ring plate (409), a movable cover (401) is detachably provided on the upper end of the feeding port (402), a connecting pipe (103) is provided on the top of the movable cover (401), and the connecting pipe (103) is connected to an automatic oil filling component for replenishing lubricating oil therein.

2. The lubrication device for traveling crane according to claim 1, characterized in that: The automatic oil filling assembly comprises a main oil pipe (101), a branch pipe (102) is arranged outside the main oil pipe (101), a buoyancy throttling unit is arranged between the branch pipe (102) and the connecting pipe (103), the main oil pipe (101) is connected to the oil outlet end of the storage oil tank (100), and the storage oil tank (100) and the main oil pipe (101) are fixedly arranged on the lifting body (600).

3. The lubrication device for traveling crane according to claim 2, characterized in that: The buoyancy throttling unit comprises a connecting box (200) for connecting the main oil pipe (101) and the connecting pipe (103); an isolation block (201) is provided inside the connecting box (200); a blocking chute (202) is provided at the bottom of the isolation block (201); a movable baffle (205) is slidably provided in the blocking chute (202); the upper end of the movable baffle (205) is connected to the top of the blocking chute (202) via a blocking spring (203); a movable opening (207) is provided on the movable baffle (205); a fixed baffle (204) is provided at the lower end of the isolation block (201) and is fitted with the movable baffle (205); a fixed opening (206) corresponding to the movable opening (207) is provided on the fixed baffle (204); and the lower end of the movable baffle (205) is connected to the buoyancy traction member.

4. The lubrication device for traveling crane according to claim 3, characterized in that: The buoyancy traction member comprises a floating guide sleeve (422) arranged at the bottom position of the center ring plate (409), a vertical rod is slidably arranged in the floating guide sleeve (422), a floating ball (417) is arranged at the upper end of the vertical rod, the lower end of the floating ball (417) is connected to the traction block (419), the traction block (419) is connected to one end of the traction wire (405), the other end of the traction wire (405) passes through the first guide ring (418) and the second guide ring (421) in sequence and is connected to the bottom of the movable partition (205), the first guide ring (418) and the second guide ring (421) are fixed on the auxiliary positioning rod (406), and the end of the auxiliary positioning rod (406) is connected to the lifting body (600).

5. The lubrication device for traveling crane according to claim 4, characterized in that: A scale (420) is fixedly provided on the auxiliary positioning rod (406), an indication bar (423) is slidably provided on the scale (420), and an end of the indication bar (423) is connected to the traction wire (405) via an indication connecting rod (425).

6. The lubrication device for traveling crane according to claim 1, characterized in that: The automatic oil filling assembly further comprises an oil guide member for delivering oil to the lubrication area of ​​the support bearing (407), the oil guide member comprising a filter box (413) arranged below the feeding port (402), a sliding notch being arranged on the outside of the filter box (413), a filter drawer plate (412) for filtering the lubricating oil being slidably arranged at the position of the sliding notch, a cross bar being arranged at the upper end of the filter box (413), the cross bar being connected to a hanging pipe (411), the top of the hanging pipe (411) being connected to the movable cover (401), the inside of the hanging pipe (411) being provided with a connecting pipe (103), the filter box (413) has oil outlets symmetrically arranged on both sides of the lower end, a guide hose (414) is fixedly arranged at the oil outlet to guide the oil toward the oil filling groove ring (416) of the support bearing (407), the guide hose (414) is made of elastic rubber, a plurality of oil filling cylinders (415) are arranged in an array on the inner sides of the first box cylinder (408) and the second box cylinder (410), and a loading port is arranged on the side of the oil filling cylinder (415) facing the filter box (413), and the loading port is arranged to be inclined upward.

7. The lubrication device for traveling crane according to claim 6, characterized in that: The oil storage inner cavity of the oil filling cylinder (415) is a tapered chamber with a wide interior and a small end.

8. The lubrication device for traveling crane according to claim 1, characterized in that: The heat dissipation component comprises a plurality of heat dissipation fins (404) distributed on the outer side of a first box tube (408), the heat dissipation fins (404) being used to increase the heat dissipation surface, and a plurality of fan blades (403) for guiding airflow are distributed in an array on the first box tube (408) outside the heat dissipation fins (404).

9. The lubrication device for traveling crane according to claim 1, characterized in that: A sealing ring matching the second casing (410) and the first casing (408) is provided on the outer side of the central ring plate (409).

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