Plate chain type self-lubricating elevator

Abstract

The utility model discloses a plate chain type self-lubricating elevator. The elevator comprises a machine body, an elevating mechanism and a driving assembly. The lifting mechanism is composed of a plurality of hoppers which are sequentially connected through connecting pieces, and each connecting piece comprises an outer chain link and an inner chain link which are hinged. In order to solve the problem of insufficient lubrication of chains and chain links in the prior art, a shell is arranged on the outer side of the elevator, and an automatic lubrication system is installed in the shell and comprises a liquid storage box, an output pump, a lubrication bin, a backflow bin and the like. Lubricating agents are sprayed to the connecting portions of the chain links through the output pipeline, friction and abrasion are reduced, and the backflow bin recycles the redundant lubricating agents into the storage box through the backflow pipeline to form a closed loop. According to the automatic lubricating system, the working efficiency of the elevator is effectively improved, the service life of equipment is prolonged, and waste of lubricating agents is avoided. The elevator is simple in structure and stable in operation, and has high practicability and economic value.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to a plate chain type automatic lubrication lifting machine. Background Technology

[0002] Existing elevators typically use mechanical transmission to lift materials. However, during prolonged use, the chains, chain links, and other moving parts in the lifting mechanism are prone to wear due to friction, leading to equipment failure and increased maintenance costs. Therefore, current technologies often rely on manual lubrication to reduce friction. However, this method is not automated and requires regular manual inspection and lubrication, causing inconvenience to production. To improve the efficiency and service life of elevators, the introduction of automatic lubrication systems has become a significant improvement in elevator technology.

[0003] In plate chain elevators, the lifting mechanism is similar to that of chain drives. The lack of lubrication at the hinges between chain links can easily lead to jamming or excessive friction, thus affecting material conveying efficiency and equipment lifespan. Therefore, designing a plate chain elevator capable of automatic lubrication is urgently needed and has become a trend in elevator technology development. Utility Model Content

[0004] The purpose of this utility model is to provide a plate chain type automatic lubrication hoist, which can effectively solve the problem of insufficient lubrication in the chain and chain links of existing hoists, thereby reducing friction, reducing wear, and improving the working efficiency and service life of the equipment.

[0005] The technical solution adopted by this utility model to solve the above problems is: a plate chain type automatic lubrication lifting machine, including a machine body, the machine body including a lifting mechanism and a drive component for driving the lifting mechanism to lift in a cyclic manner, the lifting mechanism including a number of hoppers connected in sequence by connecting members, the connecting members including an outer chain link and an inner chain link hinged by a pin, the outer chain link including a chain plate and a side plate fixed to one side of the hopper, the inner chain link consisting of two chain plates, the machine body also including a housing disposed outside the lifting mechanism, the housing being fitted with a lubrication unit, the lubrication unit including a liquid storage box, the liquid storage box storing lubricant and equipped with an output pump, the output pump being connected to a lubrication chamber disposed in the housing through an output pipeline, the lubrication chamber being used to lubricate the connecting members, and a return chamber being disposed below it, the return chamber being connected to the return pump of the storage box through a return pipeline.

[0006] Preferably, the drive assembly includes a drive platform fixed to the housing, a drive motor on one side of the drive platform, the drive motor being connected to the input end of the reducer via a coupling, a head shaft being rotatably mounted on the housing, and a pair of sprockets meshing with the chain links being mounted on the head shaft, one end of the head shaft being connected to the output end of the reducer via a chain drive mechanism, the drive assembly also includes a tail shaft, the tail shaft being rotatably and slidingly mounted on the housing, and a pair of pressure rollers being mounted on the tail shaft, and a counterweight frame for driving the tail shaft to press down being connected above the bearing seats at both ends of the tail shaft, with several sets of counterweight blocks stacked on the counterweight frame.

[0007] Preferably, the output port of the output pump and the input port of the return pump are both connected to a tee, and two sets of output pipelines and two sets of return pipelines are respectively connected through the tee. The end of the output pipeline is connected to a nozzle set in the liquid storage box, and the end of the return pipeline is connected to a suction nozzle set in the storage box.

[0008] Preferably, the liquid storage box has a channel that is wider at the top and narrower at the bottom, the nozzle has a baffle at the front end, a flexible cotton brush is provided below the baffle, the flexible cotton brush is located on the front side of the nozzle and has a wavy edge, and the connector is located between the two sets of flexible cotton brushes.

[0009] Preferably, the suction nozzle is located in the storage tank at the bottom of the return chamber, and a filter plate is provided above the storage tank.

[0010] Preferably, the reflux chamber has a slot, the filter plate is slidably disposed in the slot, and the reflux chamber is provided with a sliding groove adapted to the slidable connection of the filter plate, and one end of the filter plate is provided with an L-shaped handle.

[0011] Preferably, the machine body includes a lubrication section with an installation port, and both the liquid storage box and the storage box are provided with a cover. The outer periphery of the cover is fixed to the installation port by fixing bolts.

[0012] Preferably, a heating device is provided below the reflux chamber.

[0013] Compared with the prior art, this utility model has the following advantages and effects:

[0014] This invention solves the problem of insufficient lubrication at chain link connections in traditional plate chain hoists by introducing an automatic lubrication system. This effectively reduces friction and wear on the chain, chain links, and other moving parts, extending the equipment's service life. Simultaneously, the automated lubrication process not only saves on manual maintenance costs but also avoids the instability and inconvenience of manually adding lubricant. The automatic lubrication system, through a closed-loop reflux design, achieves efficient lubricant utilization, avoids waste, and improves lubrication effectiveness. The heating device in the reflux chamber ensures the normal flowability of the lubricant at low temperatures, further enhancing lubrication performance. The overall design effectively improves the hoist's working efficiency and stability, reduces the equipment failure rate caused by excessive wear, and possesses high economic benefits and application value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the body of an embodiment of this utility model.

[0016] Figure 2 This is a structural schematic diagram of the connector in an embodiment of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the driving component in an embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the driving component in an embodiment of this utility model.

[0019] Figure 5 This is a schematic diagram of the lubrication unit in an embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the internal structure of the lubrication chamber in an embodiment of this utility model.

[0021] Figure 7 This is a schematic diagram of the internal structure of the reflux chamber in an embodiment of this utility model.

[0022] Figure Numbers: 11. Body, 12. Lifting Mechanism, 13. Drive Component, 14. Lubrication System, 15. Housing, 21. Connector, 22. Hopper, 23. Pin, 24. Outer Link, 25. Inner Link, 26. Chain Plate, 27. Side Plate, 3. Lubrication Unit, 31. Liquid Storage Box, 32. Output Pump, 33. Output Pipeline, 34. Lubrication Chamber, 35. Return Chamber, 36. Return Pipeline, 37. Return Pump, 41. Drive Platform, 42. Drive Motor, 43. Coupling, 44. Reducer 4. Chain drive mechanism 45, head shaft 46, sprocket 461, tail shaft 47, pressure roller 471, bearing seat 51, counterweight frame 52, counterweight block 53, tee 54, nozzle 55, suction nozzle 56, lubrication section 6, mounting port 61, cover 62, fixing bolt 63, heating device 64, channel 71, baffle 72, flexible cotton brush 73, wavy edge 74, storage tank 75, filter plate 76, slot 77, slide 78, handle 79. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0024] Example: See Figure 1 - Figure 5 This embodiment relates to a plate chain type automatic lubrication elevator, specifically used for the automated lifting of materials. The main components of the elevator include a body 11, a lifting mechanism 12, a drive assembly 13, and an automatic lubrication system 14. The body 11 includes the lifting mechanism 12 and the drive assembly 13 that drives the lifting mechanism 12 to circulate and lift materials. The lifting mechanism 12 includes several sets of hoppers 22 connected sequentially by connectors 21. The connectors 21 include outer chain links 24 and inner chain links 25. The outer chain link 24 consists of chain plates 26 and side plates 27, wherein the side plates 27 are fixedly connected to one side of the hopper 22. The inner chain link 25 consists of two chain plates 26.

[0025] The machine body 11 also includes a housing 15 disposed outside the lifting mechanism 12. An automatic lubrication system 14 is installed on the housing 15. The automatic lubrication system 14 consists of two sets of lubrication units 3 symmetrically disposed on both sides of the housing 15. The lubrication units 3 are correspondingly disposed at the positions where the chain links of the lifting mechanism 12 move downward. The lubrication unit 3 includes a liquid storage box 31, which stores lubricant and is equipped with an output pump 32. The output pump 32 is connected to a lubrication chamber 34 inside the housing 15 through an output pipe 33. The lubrication chamber 34 is used to lubricate the connecting parts 21 in the lifting mechanism 12. During the operation of the machine body 11, the chain links of the lifting mechanism 12 pass through the lubrication chamber 34 sequentially from top to bottom. The lubricant is sprayed through the lubrication chamber 34, mainly lubricating the hinges (rotating pairs of pins 23) between the chain links to maintain the lubrication effect of the connecting parts 21 and reduce wear and jamming caused by friction.

[0026] To achieve more efficient lubrication, a return chamber 35 is installed below the lubrication chamber 34. The return chamber 35 is connected to the return pump 37 in the storage box via a return pipe 36. The return chamber 35 is used to collect excess lubricant and return it to the storage box, forming a closed-loop lubrication system 14. This system enables lubricant recovery, avoids lubricant waste, and prevents material contamination caused by excessive lubricant filling, thus comprehensively improving the service life of the machine body 11.

[0027] See Figure 3 and Figure 4 The drive assembly 13 includes a drive platform 41 fixed to the housing 15, with a drive motor 42 mounted on one side of the drive platform 41. The drive motor 42 is connected to the input end of a reducer 44 via a coupling 43. The output end of the reducer 44 is connected to a head shaft 46 via a chain drive mechanism 45. A pair of sprockets 461 meshing with the chain links are mounted on the head shaft 46. When the head shaft 46 rotates, the sprockets 461 drive the chain of the lifting mechanism 12 to rotate cyclically. To ensure the tension and stability of the chain, the drive assembly 13 also includes a tail shaft 47. The tail shaft 47 is rotatably and slidably mounted on the housing 15, and a pair of pressure rollers 471 in contact with the connecting member 21 are mounted on the tail shaft 47. A counterweight frame 52 for driving the tail shaft 47 to press down is connected above the bearing seats 51 at both ends of the tail shaft 47, and several sets of counterweight blocks 53 are stacked on the counterweight frame 52. The weight of the counterweight block 53 enables the tail shaft 47 to maintain appropriate downward pressure, facilitating the downward pressing and material removal by the hopper 22 below, thereby ensuring the stability of the lifting mechanism 12 during the material lifting process.

[0028] See Figure 5The lubrication system 14 achieves automatic lubrication through the following structure: the output port of the output pump 32 and the input port of the return pump 37 are both connected to a tee 54, and two sets of output pipes 33 and two sets of return pipes 36 are respectively connected through the tee 54. The end of the output pipe 33 is connected to the nozzle 55 in the liquid storage box 31, and the end of the return pipe 36 is connected to the suction nozzle 56 in the storage box to provide lubricant. Through this pipe structure, the lubricant can be evenly sprayed onto the chain link connecting parts in the lifting mechanism 12, while excess lubricant can flow back to the storage box through the return pipe 36, ensuring efficient utilization of the lubricant.

[0029] The body 11 includes a lubrication section 6, which has an installation port 61. Both the liquid storage box 31 and the storage box are equipped with a cover 62. The outer periphery of the cover 62 is fixed to the installation port 61 by fixing bolts 63. This facilitates the installation and maintenance of the lubrication unit 3 and also ensures the airtightness of the body 11.

[0030] A heating device 64 is provided below the reflux chamber 35. In this embodiment, the heating device 64 can be an infrared heating device 64, which uses infrared radiation to heat the lubricant in a non-contact manner, maintains the lubricating performance of the lubricant, and avoids the lubricant viscosity from being too high due to low temperature, which would affect the lubrication effect.

[0031] See Figure 6 The liquid storage box 31 has a channel 71 that is wider at the top and narrower at the bottom. The channel 71 guides the connector 21 to slide downwards into the liquid storage box 31. A baffle 72 is provided at the front end of the nozzle 55. A flexible cotton brush 73 is provided below the baffle 72. The flexible cotton brush 73 is located in front of the nozzle 55 and has a wavy edge 74. The connector 21 is located between two sets of flexible cotton brushes 73 to ensure that the sprayed lubricant can be evenly distributed on the surface of the connector 21, and the lubricant can be further diffused by the flexible cotton brushes 73 to achieve a better lubrication effect.

[0032] See Figure 7 The suction nozzle 56 is disposed within the storage groove 75 at the bottom of the return chamber 35, and a filter plate 76 is disposed above the storage groove 75. The filter plate 76 is used to filter impurities in the returned lubricant, ensuring the cleanliness of the lubricant and preventing impurities from affecting the lubrication effect. Furthermore, the return chamber 35 has a slot 77, within which the filter plate 76 is slidably disposed. The return chamber 35 also has a sliding groove 78 adapted to the sliding connection of the filter plate 76, and one end of the filter plate 76 is provided with an L-shaped handle 79. Operators can easily pull the filter plate 76 to clean or replace it.

[0033] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A plate chain type automatic lubrication lifting machine, comprising a machine body, said machine body including a lifting mechanism and a drive assembly for driving the lifting mechanism to cyclically lift, characterized in that, The lifting mechanism includes several sets of hoppers connected in sequence by connectors. The connectors include outer and inner chain links hinged by pins. The outer chain link includes a chain plate and a side plate fixed to one side of the hopper. The inner chain link consists of two chain plates. The machine body also includes a housing located outside the lifting mechanism. A lubrication unit is installed and fixed in the housing. The lubrication unit includes a liquid storage box containing lubricant and an output pump. The output pump is connected to a lubrication chamber located in the housing via an output pipeline. The lubrication chamber is used to lubricate the connectors. A return chamber is located below the lubrication chamber and is connected to a return pump in the storage box via a return pipeline.

2. The automatic lubrication and lifting machine of plate chain type according to claim 1, characterized in that: The drive assembly includes a drive platform fixed to the housing, a drive motor on one side of the drive platform, the drive motor being connected to the input end of the reducer via a coupling, a head shaft rotatably mounted on the housing, and a pair of sprockets meshing with the chain links on the head shaft, one end of the head shaft being connected to the output end of the reducer via a chain drive mechanism. The drive assembly also includes a tail shaft, which is rotatably and slidably mounted on the housing, and a pair of pressure rollers are mounted on the tail shaft. A counterweight frame for driving the tail shaft to press down is connected above the bearing seats at both ends of the tail shaft, and several sets of counterweight blocks are stacked on the counterweight frame.

3. The automatic lubrication and lifting machine of plate chain type according to claim 1, characterized in that: The output port of the output pump and the input port of the return pump are both connected to a T-junction, and two sets of output pipelines and two sets of return pipelines are respectively connected through the T-junction. The end of the output pipeline is connected to a nozzle set in the liquid storage box, and the end of the return pipeline is connected to a suction nozzle set in the storage box.

4. The automatic lubrication and lifting machine of plate chain type according to claim 3, characterized in that: The liquid storage box has a channel that is wider at the top and narrower at the bottom. The nozzle has a baffle at the front end and a flexible cotton brush below the baffle. The flexible cotton brush is located on the front side of the nozzle and has a wavy edge. A connector is located between the two sets of flexible cotton brushes.

5. The automatic lubrication and lifting machine of plate chain type according to claim 4, characterized in that: The suction nozzle is located in the storage tank at the bottom of the return chamber, and a filter plate is installed above the storage tank.

6. The automatic lubrication and lifting machine of plate chain type according to claim 5, characterized in that: The reflux chamber has a slot, the filter plate is slidably disposed in the slot, and the reflux chamber is provided with a sliding groove adapted to the sliding connection of the filter plate. One end of the filter plate is provided with an L-shaped handle.

7. A plate chain type automatic lubrication hoist according to claim 6, characterized in that: The machine body includes a lubrication section with an installation port. Both the liquid storage box and the storage box are equipped with caps, and the outer periphery of the caps is fixed to the installation port by fixing bolts.

8. A plate chain type automatic lubrication hoist according to claim 6, characterized in that: A heating device is installed below the reflux chamber.

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