CN111776967A

CN111776967A - Electric hoist

Info

Publication number: CN111776967A
Application number: CN202010539562.9A
Authority: CN
Inventors: 林茹仪; 方志华
Original assignee: Taizhou Boneng Hoisting Machinery Co ltd
Current assignee: Zhejiang Boneng Hoisting Technology Co.,Ltd.
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2020-10-16
Anticipated expiration: 2040-06-15
Also published as: CN111776967B

Abstract

The invention discloses an electric hoist, which relates to the field of electric hoists and comprises an electric hoist body and a chain bag, wherein the chain bag comprises a mounting ring, a pair of supporting frames are arranged on the upper end surface of the mounting ring side by side, and a bag body is arranged below the mounting ring; the up end interval of the bag body and evenly be provided with a plurality of installation pieces, the lower terminal surface of collar is provided with the mounting groove that supplies the installation piece embedding to be provided with the locking mechanical system who is used for the fixed mounting piece on the collar. The invention has the following advantages and effects: through setting up the modular chain bag, realize the independent dismantlement of the bag body and maintain alone and change, need not to change whole chain bag, reduced cost of maintenance, also reduced the waste of resource simultaneously.

Description

Electric hoist

Technical Field

The invention relates to the field of electric hoists, in particular to an electric hoist.

Background

The electric hoist is a special hoisting device, is arranged on a crown block and a gantry crane, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used in places such as industrial and mining enterprises, warehouses, docks and the like.

Chinese patent CN204661217U discloses a two electric block, and it includes electric block body and electric trolley, and two electric block bodies are the reverse installation parallel arrangement, and the chain bag passes through bolted connection on the electric block body, and the chain in the chain bag bypasses two electric block body coupling lifting hooks, wholly constitutes two electric block.

The chain bag of the electric hoist is fixed on the electric hoist body through the bolt connection, but when the chain bag is damaged, the whole chain bag needs to be replaced, so that not only is the cost increased, but also the resource waste is caused, and the improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an electric hoist which has the effect of reducing resource waste.

The technical purpose of the invention is realized by the following technical scheme: an electric hoist comprises an electric hoist body and a chain bag, wherein the chain bag comprises a mounting ring, a pair of supporting frames are arranged on the upper end surface of the mounting ring side by side, and a bag body is arranged below the mounting ring; the utility model discloses a bag body, including the installation ring, the installation ring is provided with the installation piece, the last up end interval of the bag body and evenly be provided with a plurality of installation pieces, the lower terminal surface of installation ring is provided with the confession the mounting groove of installation piece embedding, and be provided with on the installation ring and be used for fixing the locking mechanical system of installation piece.

Through adopting above-mentioned technical scheme, when the installation chain bag, earlier be fixed in the electric block body with a pair of support frame on, realize that the installation of collar is fixed. Then the bag body is taken out, the mounting block at the upper end of the bag body is embedded into the mounting groove at the lower end of the mounting ring, and then the mounting block is fixed by using the locking mechanism, so that the whole chain bag can be mounted. When the chain bag appears damaged, directly remove locking mechanical system, then the drive bag body drives the installation piece downstream, after the installation piece breaks away from the mounting hole, can realize the dismantlement of whole bag body. Then take out the new bag body to in with installation piece embedding mounting groove, then utilize locking mechanical system to fix the installation piece, can realize the change and the installation of the bag body. Consequently through setting up the modular chain bag, realize the independent dismantlement of the bag body and maintain alone and change, need not to change whole chain bag, reduced cost of maintenance, also reduced the waste of resource simultaneously.

The present invention in a preferred example may be further configured to: the locking mechanism comprises a plurality of arc-shaped locking rods, the number of the locking rods is the same as that of the mounting blocks, locking holes for the locking rods to slide are formed in the side walls of the same sides of the mounting grooves, and locking grooves for the locking rods to be inserted are formed in the mounting blocks; the locking ring deviates from the vertical regulation pole that is provided with of one end up end of installation piece, the up end of installation pole is provided with the intercommunication the locking hole just supplies the regulation groove that the pole slided, and the locking pole deviates from the one end of installation piece with be provided with the answer spring between the diapire in locking hole.

By adopting the technical scheme, when the locking mechanism is unlocked, the driving adjusting rod drives the locking rod to synchronously slide, and the locking rod gradually disengages from the locking groove and presses the return spring to compress. And when the locking rod is completely separated from the locking groove and is embedded into the locking hole, the locking mechanism is released. When the locking mechanism is locked, the adjusting rod is loosened, the return spring extends and drives the locking rod and the adjusting rod to move reversely, and the locking rod is gradually inserted into the locking groove. And when the locking rod is completely inserted into the locking groove, the locking of the locking mechanism can be realized. Therefore, the locking mechanism with simple structure and convenient operation is used for realizing the quick locking and releasing of the mounting block, thereby realizing the quick disassembly, assembly, maintenance and replacement of the bag body.

The present invention in a preferred example may be further configured to: a driving ring is arranged above the mounting ring, and the upper ends of the adjusting rods are fixed on the lower end surface of the driving ring.

Through adopting above-mentioned technical scheme, through setting up a plurality of regulation poles synchronous motion of drive ring control, realize the synchronous locking and the synchronous release of whole installation pieces to realize quick assembly disassembly and the maintenance of the bag body and change.

The present invention in a preferred example may be further configured to: the inner wall of the two-phase inner wall of the mounting ring is horizontally provided with support rods, a support ring for the chain to penetrate through is arranged between the support rods, and the inner wall of the support ring is provided with an oil painting brush.

Through adopting above-mentioned technical scheme, when electric block body during operation, the chain will slide along the support ring inner wall to pile up in the bag internal. Can utilize the fat liquoring brush to carry out the fat liquoring operation to the outer wall of chain this moment, guarantee the lubrication of chain outer wall, avoid the chain card to appear and pause or corrosion phenomenon, smoothness nature and life when improving the chain use.

The present invention in a preferred example may be further configured to: an oil storage box with an opening at the upper end is arranged on the bottom wall of the bag body, a pressing plate is horizontally arranged in the oil storage box, the periphery of the pressing plate is abutted against the peripheral inner wall of the oil storage box, the pressing plate is vertically and slidably connected to the inner wall of the oil storage box, and a plurality of reset springs are arranged between the lower end face of the pressing plate and the bottom wall of the oil storage box; the two opposite outer walls of the oil storage box are provided with communicating oil outlet pipes at the lower end of the oil storage box, the support ring is provided with communicating oil discharge pipes of the oil painting brush, connecting pipes are arranged between the oil outlet pipes, and backflow holes are arranged on the pressing plate in a penetrating mode.

Through adopting above-mentioned technical scheme, when the chain is piled up at the internal time of bag, the gravity of chain self drives the clamp plate and slides downwards automatically, and the clamp plate is pressed and is moved the reset spring compression this moment, and meanwhile, the fluid in the clamp plate will store up the oil box is extruded to fluid after going out oil pipe, connecting pipe and oil extraction pipe in proper order, discharges to in the fat liquoring brush, realizes the automatic oil supplementation and the real-time oil supplementation of fat liquoring brush. When the chain outwards moved gradually, reset spring stretched out and drive clamp plate upward movement, produced the negative pressure in the oil storage box this moment and inhaled the oil liquid remaining on the clamp plate surface in the oil storage box again through the backward flow hole, also inhaled the oil liquid in oil outlet pipe, connecting pipe and the oil extraction pipe in the oil storage box again simultaneously, realized the automatic recovery of unnecessary oil liquid. Therefore, the automatic oil supplementing and real-time oil supplementing of the oil painting brush are realized by arranging the oil storage box for automatically supplementing oil, and the oil painting effect of the oil painting brush is ensured, so that the lubrication of the outer wall of the chain is ensured.

The present invention in a preferred example may be further configured to: the backflow hole is arranged in a tapered shape from top to bottom.

Through adopting above-mentioned technical scheme, because the backward flow hole is the convergent shape by last to setting up, consequently when fluid is outwards extruded, the tension of fluid will carry out the shutoff with the lower extreme of backward flow hole automatically, avoids unnecessary fluid to arrange outward along the backward flow hole. When negative pressure is generated in the oil storage box, the oil on the pressing plate can flow back to the oil storage box at an accelerated speed by utilizing the backflow holes which are gradually reduced from top to bottom, so that the oil can be quickly recovered and stably recovered, and meanwhile, the waste of oil resources is reduced.

The present invention in a preferred example may be further configured to: the backflow hole is located at the center of the pressing plate, the upper end face of the pressing plate is arranged in a concave shape, and the middle of the backflow hole is lower than the periphery of the backflow hole.

Through adopting above-mentioned technical scheme, because the up end of clamp plate is the concave shape setting, consequently can accelerate oil flow to the backward flow downthehole, realize the quick recovery of fluid, improve the recovery effect of fluid simultaneously, reduce the waste of fluid resource.

The present invention in a preferred example may be further configured to: one end of each pair of the support rods, which is close to each other, is provided with an oil scraping brush, and the oil scraping brushes are positioned right below the support rings.

Through adopting above-mentioned technical scheme, when the chain outwards moved gradually, the chain was earlier through scraping the oil brush, can utilize this moment to scrape unnecessary fluid on the chain with scraping the oil brush, under the prerequisite of guaranteeing the smooth work of chain, reduces the waste of fluid resource.

The present invention in a preferred example may be further configured to: the oil scraping brush is rotatably connected to the supporting rod.

Through adopting above-mentioned technical scheme, because the chain forms for a plurality of rings body links up, consequently when chain during operation, a plurality of rings bodies are different angles and scrape the oil brush, will drive the oil brush autogiration of scraping this moment, realize thoroughly scraping of unnecessary fluid in the chain to reduce the waste of fluid resource.

In conclusion, the invention has the following beneficial effects:

1. by arranging the modularized chain bag, the independent disassembly and the independent maintenance and replacement of the bag body are realized, the whole chain bag does not need to be replaced, the maintenance cost is reduced, and the waste of resources is reduced;

2. the locking mechanism which is simple in structure and easy and convenient to operate is arranged, so that the mounting block is quickly locked and unlocked, and the bag body is quickly disassembled, assembled, maintained and replaced;

3. the outer wall of the chain is oiled by the oiling brush, so that the lubrication of the outer wall of the chain is ensured, the phenomenon of blocking or rusting of the chain is avoided, and the smoothness and the service life of the chain in use are improved;

4. the automatic oil supplement and real-time oil supplement of the oil painting brush are realized by arranging the oil storage box with automatic oil supplement, and the oil painting effect of the oil painting brush is ensured, so that the lubrication of the outer wall of the chain is ensured;

5. through setting up the oil scraping brush, strike off unnecessary fluid on the chain, under the prerequisite of guaranteeing the smooth work of chain, reduce the waste of fluid resource.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic structural view of a chain pocket of an embodiment;

FIG. 3 is a schematic view of the internal structure of the chain pocket of the embodiment;

FIG. 4 is a schematic view showing the connection relationship of the chain pocket of the embodiment;

FIG. 5 is a schematic structural view of a locking mechanism of an embodiment;

fig. 6 is a schematic view of a structural return spring of an embodiment.

Reference numerals: 1. a gourd body; 2. a chain pocket; 21. a mounting ring; 22. a support frame; 23. a bag body; 24. mounting blocks; 25. mounting grooves; 26. a locking hole; 27. a locking groove; 28. an adjustment groove; 29. a drive ring; 3. a support bar; 31. a support ring; 32. coating an oil brush; 33. scraping the oil brush; 34. an oil discharge pipe; 4. an oil storage box; 41. pressing a plate; 42. a return spring; 43. an oil outlet pipe; 44. a connecting pipe; 45. a return orifice; 5. a locking mechanism; 51. a locking lever; 52. adjusting a rod; 53. a return spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the electric hoist includes an electric hoist body 1 and a chain pocket 2. The chain bag 2 comprises a mounting ring 21, a pair of supporting frames 22 are arranged on the upper end face of the mounting ring 21 side by side, the upper ends of the supporting frames 22 are fixedly connected to the electric hoist body 1 through bolts, and a bag body 23 is arranged below the mounting ring 21.

When the chain bag 2 is installed, the pair of support frames 22 are fixed to the electric block body 1 by using bolts, so that the installation and fixation of the installation ring 21 are realized. Then the bag body 23 is fixed on the mounting ring 21, and the chain bag 2 can be mounted and fixed.

And when chain bag 2 during operation, the chain can be stored in chain bag 2 automatically, can avoid the chain to block or the adhesion impurity when the whereabouts, makes the chain be in completely clean smooth state simultaneously, guarantees the normal work of chain.

As shown in fig. 2 and 3, the two opposite inner walls of the mounting ring 21 are horizontally provided with support rods 3, a support ring 31 through which a chain passes is provided between the pair of support rods 3, and an oil brush 32 is provided on the inner wall of the support ring 31.

As shown in fig. 2 and 3, one end of each of the pair of support rods 3 close to each other is provided with an oil wiper 33, the oil wiper 33 is located right below the support ring 31, and the oil wiper 33 is rotatably connected to the support rods 3.

As shown in fig. 2 and 3, an oil storage box 4 with an opening at the upper end is arranged on the bottom wall of the bag body 23, a pressing plate 41 is horizontally arranged in the oil storage box 4, and the periphery of the pressing plate 41 abuts against the peripheral inner wall of the oil storage box 4.

As shown in fig. 2 and 3, the pressure plate 41 is vertically slidably connected to the inner wall of the cartridge 4, and a plurality of return springs 42 are provided between the lower end surface of the pressure plate 41 and the bottom wall of the cartridge 4.

As shown in fig. 2 and 3, the oil outlet pipe 43 communicating with the lower end of the oil storage box 4 is provided on both opposite outer walls of the oil storage box 4, the oil discharge pipe 34 communicating with the oil painting brush 32 is provided on the support ring 31, and the connecting pipe 44 is provided between the oil outlet pipe 43 and the oil discharge pipe 34.

As shown in fig. 2 and 3, a backflow hole 45 is formed in the pressing plate 41 in a penetrating manner, the backflow hole 45 is gradually tapered from top to bottom, the backflow hole 45 is located at the center of the pressing plate 41, the upper end surface of the pressing plate 41 is concave, and the middle position of the backflow hole is lower than the periphery of the pressing plate.

When the electric hoist body 1 works, the chain slides along the inner wall of the support ring 31 and is accumulated in the bag body 23. At this time, the outer wall of the chain can be oiled by the oiling brush 32, so that the lubrication of the outer wall of the chain is ensured.

And when the chain is piled up in the bag body 23, the pressing plate 41 is driven by the self gravity of the chain to automatically slide downwards, and the pressing plate 41 presses the return spring 42 to compress. Meanwhile, the pressing plate 41 extrudes the oil in the oil storage box 4, and the oil is discharged into the oil coating brush 32 after sequentially passing through the oil outlet pipe 43, the connecting pipe 44 and the oil discharge pipe 34, so that the automatic oil supplement and the real-time oil supplement of the oil coating brush 32 are realized.

When the chain gradually moves outwards, the return spring 42 extends out and drives the pressing plate 41 to move upwards, negative pressure is generated in the oil storage box 4 at the moment, oil liquid remained on the surface of the pressing plate 41 is sucked into the oil storage box 4 again through the return hole 45, and meanwhile, the oil liquid in the oil outlet pipe 43, the connecting pipe 44 and the oil discharge pipe 34 is sucked into the oil storage box 4 again, so that the automatic recovery of redundant oil liquid is realized.

When the chain moves outwards gradually, the chain passes through the oil scraping brush 33 firstly, the oil scraping brush 33 is driven to rotate automatically, and at the moment, redundant oil on the chain can be scraped by the oil scraping brush 33, so that scraping and recycling of the redundant oil are realized on the premise of ensuring smooth work of the chain, and waste of oil resources is reduced.

As shown in fig. 4 and 5, the upper end surface of the bag body 23 is provided with a plurality of mounting blocks 24 at intervals and uniformly, the lower end surface of the mounting ring 21 is provided with mounting grooves 25 into which the mounting blocks 24 are fitted, and the mounting ring 21 is provided with a locking mechanism 5 for fixing the mounting blocks 24.

When the bag body 23 is installed, the installation block 24 at the upper end of the bag body 23 is embedded into the installation groove 25 at the lower end of the installation ring 21, and then the installation block 24 is fixed by the locking mechanism 5, so that the installation of the whole bag body 23 can be realized. And when the chain bag 2 is operated, the bag body 23 is mainly used for storing the chain.

When the bag body 23 is damaged, the locking mechanism 5 is directly unlocked, then the bag body 23 is driven to drive the mounting block 24 to move downwards, and the whole bag body 23 can be detached independently until the mounting block 24 is separated from the mounting hole. Then, the new bag body 23 is taken out, the mounting block 24 is inserted into the mounting groove 25, and then the mounting block 24 is fixed by the locking mechanism 5, so that the bag body 23 can be independently replaced and mounted.

As shown in fig. 4 and 5, the lock mechanism 5 includes a plurality of arc-shaped lock levers 51, and the number of the lock levers 51 is the same as the number of the mounting blocks 24. The same side wall of the plurality of mounting grooves 25 is provided with a locking hole 26 for the locking rod 51 to slide, and the mounting block 24 is provided with a locking groove 27 for the locking rod 51 to be inserted.

As shown in fig. 5 and 6, an upper end surface of one end of the locking rod 51 facing away from the mounting block 24 is vertically provided with an adjusting rod 52, the upper end surface of the mounting rod is provided with an adjusting groove 28 communicating with the locking hole 26 and allowing the adjusting rod 52 to slide, and a return spring 53 is arranged between one end of the locking rod 51 facing away from the mounting block 24 and the bottom wall of the locking hole 26.

As shown in fig. 5 and 6, a drive ring 29 is provided above the mount ring 21, and upper ends of a plurality of adjustment rods 52 are fixed to a lower end surface of the drive ring 29.

When the lock mechanism 5 is released, the control drive ring 29 drives the plurality of adjustment levers 52 to move synchronously, at which time the adjustment levers 52 drive the lock lever 51 to slide synchronously, and the lock lever 51 gradually disengages from the lock groove 27 and presses the return spring 53 to compress. The lock lever 51 is completely disengaged from the lock groove 27 and fitted into the lock hole 26, and the lock mechanism 5 is released.

When the locking mechanism 5 is locked, the adjustment lever 52 is released, the return spring 53 expands and drives the locking lever 51 and the adjustment lever 52 to move reversely, and the locking lever 51 is gradually inserted into the locking groove 27. The locking mechanism 5 is locked until the locking lever 51 is completely inserted into the locking groove 27.

The working principle is as follows: when the chain bag 2 is installed, the pair of supporting frames 22 are fixed on the electric hoist body 1 to realize the installation and fixation of the installation ring 21. Then, the bag body 23 is taken out, the mounting block 24 at the upper end of the bag body 23 is inserted into the mounting groove 25 at the lower end of the mounting ring 21, and then the mounting block 24 is fixed by the locking mechanism 5, so that the whole chain bag 2 can be mounted. When the electric hoist body 1 works, the chain slides along the inner wall of the support ring 31 and is accumulated in the bag body 23. At this time, the outer wall of the chain can be oiled by the oiling brush 32, so that the lubrication of the outer wall of the chain is ensured. Meanwhile, the pressing plate 41 is controlled to move downwards by the gravity of the chain, oil in the oil storage box 4 is extruded into the oiling brush 32, automatic oil supplement and real-time oil supplement of the oiling brush 32 are achieved, and lubrication of the chain is guaranteed.

The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides an electric block, includes electric block body (1) and chain bag (2), its characterized in that: the chain bag (2) comprises a mounting ring (21), a pair of supporting frames (22) are arranged on the upper end face of the mounting ring (21) side by side, and a bag body (23) is arranged below the mounting ring (21);

the upper end face interval of bag body (23) just evenly is provided with a plurality of installation pieces (24), the lower terminal surface of collar (21) is provided with the confession installation groove (25) that collar (24) inlayed, and be provided with on collar (21) and be used for fixing locking mechanical system (5) of installation piece (24).

2. An electric hoist according to claim 1, characterized in that: the locking mechanism (5) comprises a plurality of arc-shaped locking rods (51), the number of the locking rods (51) is the same as that of the mounting blocks (24), locking holes (26) for the locking rods (51) to slide are formed in the side wall of the same side of the mounting grooves (25), and locking grooves (27) for the locking rods (51) to be inserted are formed in the mounting blocks (24);

an adjusting rod (52) is vertically arranged on the upper end face of one end, deviating from the mounting block (24), of the locking rod (51), an adjusting groove (28) which is communicated with the locking hole (26) and used for the adjusting rod (52) to slide is formed in the upper end face of the mounting ring (21), and a return spring (53) is arranged between one end, deviating from the mounting block (24), of the locking rod (51) and the bottom wall of the locking hole (26).

3. An electric hoist according to claim 2, characterized in that: a driving ring (29) is arranged above the mounting ring (21), and the upper ends of the adjusting rods (52) are fixed on the lower end surface of the driving ring (29).

4. An electric hoist according to claim 1, characterized in that: the chain-driven chain scraper is characterized in that two opposite inner walls of the mounting ring (21) are horizontally provided with support rods (3), a support ring (31) for a chain to penetrate is arranged between the support rods (3), and an oil coating brush (32) is arranged on the inner wall of the support ring (31).

5. An electric block according to claim 4, characterized in that: an oil storage box (4) with an opening at the upper end is arranged on the bottom wall of the bag body (23), a pressing plate (41) is horizontally arranged in the oil storage box (4), the periphery of the pressing plate (41) is abutted against the peripheral inner wall of the oil storage box (4), the pressing plate (41) is vertically and slidably connected to the inner wall of the oil storage box (4), and a plurality of reset springs (42) are arranged between the lower end face of the pressing plate (41) and the bottom wall of the oil storage box (4);

two relative outer walls of oil storage box (4) all are provided with the intercommunication oil outlet pipe (43) of oil storage box (4) lower extreme, be provided with the intercommunication on support ring (31) oil extraction pipe (34) of scribbling oil brush (32), oil outlet pipe (43) with be provided with connecting pipe (44) between oil extraction pipe (34), and it is provided with backward flow hole (45) to run through on clamp plate (41).

6. An electric block according to claim 5, characterized in that: the backflow hole (45) is arranged in a tapered mode from top to bottom.

7. An electric block according to claim 6, characterized in that: the backflow hole (45) is located at the center of the pressing plate (41), the upper end surface of the pressing plate (41) is concave, and the middle of the backflow hole is lower than the periphery of the backflow hole.

8. An electric block according to claim 4, characterized in that: one end of each pair of the support rods (3) close to each other is provided with an oil scraping brush (33), and the oil scraping brushes (33) are located under the support rings (31).

9. An electric hoist according to claim 8, characterized in that: the oil scraping brush (33) is rotationally connected with the supporting rod (3).