Sealing protection type plate chain elevator

Abstract

The utility model discloses a sealing protection type plate chain elevator. The elevator comprises a shell, a transparent middle machine shell, a material conveying assembly, a driving assembly, an overhauling section and the like. And the shell adopts a sealing design, so that dust and materials are effectively prevented from leaking, and the cleanliness of a working environment is guaranteed. An operator can observe the running state of the material conveying assembly in real time through the transparent middle machine shell, faults can be found and processed in time, and the downtime is shortened. The design of the overhaul section facilitates quick disassembly and assembly, and the equipment maintenance efficiency is improved. And the driving assembly is accurately matched with the chain transmission system, so that the conveying efficiency is improved, the equipment abrasion is reduced, and the service life is prolonged. According to the sealing protection type plate chain elevator, through the optimized structural design, the sealing protection type plate chain elevator is high in sealing performance, high in operation convenience and good in operation stability, and is particularly suitable for production places with high environmental sanitation requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of material transportation, in particular to a sealed protection type plate chain elevator. Background Art

[0002] Plate chain elevators are important vertical material conveying equipment, widely used in mining, metallurgy, chemical engineering, and grain processing. Using a chain drive as its core, the equipment connects material-carrying hoppers into a closed loop. The chain's circular motion transports bulk materials from a lower position to a higher one, resulting in high conveying efficiency and a wide range of applications.

[0003] Existing plate chain elevators typically consist of a housing, a drive assembly, and a feed assembly. The housing provides support, protection, and sealing, and is typically divided into a head section, a tail section, and a middle section, all of which work together to convey materials. The feed assembly typically consists of a chain, chain plates, and a hopper. The hopper is driven by the chain, ensuring stable material transport. The drive assembly, consisting of a motor, a reducer, and a transmission mechanism, provides power to the feed assembly.

[0004] With the advancement of industrial technology, the requirements for elevator sealing, smooth operation, and easy maintenance are constantly increasing. For example, in dust-prone material conveying scenarios, the elevator's sealing performance directly affects the cleanliness of the environment and the safety of the equipment. In scenarios requiring frequent maintenance or overhaul, the ease of quick assembly and disassembly of the equipment structure also becomes a key design consideration. Furthermore, the smooth operation of the elevator not only affects the material conveying efficiency but also affects the equipment's service life and energy consumption.

[0005] Based on the above characteristics and requirements, the design of the plate chain hoist needs to take into account structural rationality, operational convenience and operational reliability. In response to these core technical requirements of the hoist, this utility model proposes a sealed protection plate chain hoist, which is optimized and improved on the basis of the existing structure. Utility Model Content

[0006] The purpose of the utility model is to provide a sealed protection type plate chain elevator, which can effectively solve the sealing protection problem in the material transportation process, improve the safety and cleanliness of the working environment, and enhance the stability and service life of the equipment.

[0007] The technical solution adopted by the present invention to solve the above-mentioned problems is: a sealed and protected plate chain elevator, comprising a body, a feed port is provided at the bottom of the body, a discharge port is provided at the top of the body, a feeding assembly is provided in the body, the body also comprises a sealing shell provided on the outside of the feeding assembly, a driving assembly is fixedly installed on the shell, the driving assembly drives the feeding assembly to circulate the material from the feed port to the discharge port, and the feeding assembly comprises a plurality of hoppers connected in sequence by chain plates.

[0008] Preferably: the shell includes a head casing, an intermediate casing, an inspection section and a tail casing from top to bottom, the discharge port is arranged downward on one side of the head casing, and the feed port is arranged upward on the other side of the tail casing. The intermediate casing is made of transparent material, and inspection ports are opened around the inspection section, and the inspection ports are fixed with inspection covers by fixing bolts.

[0009] Preferably: the driving assembly includes a driving motor, a reducer, a head shaft and a tail shaft of a chain transmission mechanism, a driving platform is provided on the outer periphery of the head casing, the discharge port is provided below one side of the driving platform, and a driving device frame is provided above the other side of the driving platform, the driving motor and the reducer are installed and fixed on the driving device frame, and the motor shaft of the driving motor is connected to the input shaft of the reducer, the two ends of the head shaft are rotatably connected to the head casing through the head bearing seat, and the head shaft is sleeved and fixed with a load-bearing sprocket that meshes with the chain plate, the tail shaft is rotatably and slidably set on the tail casing, and the tail shaft is sleeved and fixed with a supporting wheel that fits with the chain plate, the reducer and the head shaft are connected through a chain transmission mechanism, and the driving motor and the input shaft of the reducer are connected through a hydraulic coupling.

[0010] Preferably: the tail casing is symmetrically provided with two groups of side sealing plates, the side sealing plates are slidably connected to the sliding plates up and down, a heavy hammer frame is connected and fixed above the sliding plate, the heavy hammer frame is slidably set on the tail casing and several groups of heavy hammer blocks are placed on the heavy hammer frame, the sliding plate is fixedly installed with the tail bearing seat, the side sealing plates are vertically provided with sliding grooves, and the two ends of the tail shaft pass through the sliding grooves and are rotatably connected to the tail bearing seat.

[0011] Preferably: a side pressure plate is provided at the connection between the head shaft and the head housing, and the side pressure plate and the side sealing plate are both connected and fixed with a sealing box through a threaded connection, the sealing box includes a sealing gasket and a sealing cover, and a sealing rubber ring is provided for the rotating pair between the sealing cover and the head shaft or the tail shaft, and the threaded connection includes a stud fixed on the side pressure plate and the side sealing plate and a nut adapted to be threadedly connected with the stud.

[0012] Preferably, both ends of the weight frame are provided with a cylinder for driving it to press downward, the cylinder body of the cylinder is fixed on the tail casing, and the piston rod of the cylinder is connected and fixed to the end of the weight frame through an elastic block.

[0013] Preferably: an observation port is provided on the side of the tail casing opposite to the feed port, the observation port is fixed with an observation cover through a clamping handle, and fixing frames are provided on both sides of the observation port, the fixing frames are provided with long holes and locking bolts are screwed on the ends, and the pin shafts at both ends of the clamping handle are passed through the long holes and locked and fixed by locking bolts.

[0014] Compared with the prior art, the present invention has the following advantages and effects:

[0015] The sealed protection plate chain elevator of the present invention effectively solves the problems of traditional elevators in terms of sealing, maintenance convenience and operational stability by optimizing the structural design. First, the sealing design of the shell can prevent dust and material leakage, ensure the cleanliness of the working environment, and meet the requirements of industrial clean production. Secondly, the transparent intermediate casing enables the operator to observe the operating status of the feeding component in real time, promptly discover and handle faults, and reduce downtime and maintenance costs. In addition, the design of the maintenance section facilitates quick disassembly and assembly, improves the maintenance efficiency of the equipment, and ensures long-term and efficient operation. The precise coordination of the drive assembly and the chain transmission system not only improves the conveying efficiency, but also reduces equipment wear and extends the service life. The improved closedness of the overall structure and the reliability of the drive give the utility model significant advantages in dust control, ease of operation and equipment stability, and is particularly suitable for production sites with high requirements for environmental hygiene. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a sealed protection type plate chain elevator according to an embodiment of the present utility model.

[0017] Figure 2 It is a structural schematic diagram of the feeding assembly of an embodiment of the utility model.

[0018] Figure 3 It is a structural diagram of the drive assembly of an embodiment of the utility model.

[0019] Figure 4 It is a structural diagram of the maintenance section of an embodiment of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the tail casing of an embodiment of the utility model.

[0021] Figure 6 It is a schematic diagram of the assembly structure of the head shaft of an embodiment of the utility model.

[0022] Body 11, feed inlet 12, discharge outlet 13, material conveying assembly 14, shell 15, drive assembly 16, chain plate 17, hopper 18, head casing 21, intermediate casing 22, maintenance section 23, maintenance opening 231, maintenance cover 232, fixing bolt 233, tail casing 24, observation opening 241, pressing handle 242, observation cover 243, fixing frame 244, locking bolt 245, tail cleaning door 246, handle 247, drive platform 31, drive device frame 32, drive motor 33, speed reducer 34, chain transmission mechanism 35, head shaft 36, load sprocket 361, head bearing seat 362, embedded transparent cover 363, embedded cover 364, side pressing plate 365, tail shaft 37, carrier wheel 371, tail bearing seat 372, fluid coupling 38, weight frame 41, weight block 42, sliding plate 43, cylinder 44, cylinder body 441, piston rod 442, elastic block 45, side sealing plate 46, sliding groove 461, sealing box 51, sealing gasket 52, sealing cover 53, sealing rubber ring 54, stud 55, nut 56. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail below by combining with the drawings and through examples, the following examples are the explanation of the utility model and the utility model is not limited to the following examples.

[0024] Example: see Figure 1 Figure 3 In this embodiment, a sealed protection type plate chain elevator is involved, which is specifically used for conveying granular or powdery materials, solves the deficiencies of the existing lifting equipment in the aspects of sealing, maintenance convenience and driving reliability, and the elevator comprises a body 11, the lower portion of the body 11 is provided with a feed inlet 12, the upper portion of the body 11 is provided with a discharge outlet 13, the body 11 is provided with a material conveying assembly 14, and the body 11 further comprises a sealing shell 15 arranged outside the material conveying assembly 14.The drive assembly 16 is installed and fixed on the shell 15, the drive assembly 16 drives the material conveying assembly 14 to circularly convey the materials from the feed inlet 12 to the discharge outlet 13.

[0025] Specifically, in this embodiment, the elevator is installed at a predetermined position and the body 11 is fixed. Ensure that the feed port 12 and the discharge port 13 of the body 11 are connected to the corresponding material conveying system (material conveying line). The material to be lifted is poured into the feed port 12 below the body 11, and the material is introduced into the hopper 18 of the feeding component 14 by its own weight or external equipment. The hoppers 18 are connected end to end in sequence to form a continuous conveying chain, and the material is lifted step by step under the drive component 16. The power of the drive component 16 is transmitted to each group of hoppers 18 in sequence through the chain plate 17. The hoppers 18 move along the internal trajectory of the body 11 from the direction of the feed port 12 to the direction of the discharge port 13. At the discharge port 13, the hopper 18 flips down, and the material is automatically unloaded into the external system by gravity, realizing continuous material transportation. During operation, the feeding component 14 is covered by the shell 15 to form a seal. The shell 15 effectively isolates the dust, particulate matter or leaked materials during the lifting process to avoid contamination of the external environment or contamination of the internal materials. The utility model forms a continuous conveying device through the hopper 18 connected by the chain plate 17. Under the action of the drive component 16, the material is transferred from the feed port 12 to the discharge port 13 smoothly and quickly, with high conveying efficiency. The setting of the shell 15 completely covers the feeding component 14, eliminating the pollution of the environment caused by dust leakage during the lifting process, meeting the requirements of industrial clean production. The overall lifting process is closed and operates, avoiding pollution to the outside world during the material conveying process. It is particularly suitable for production scenarios with strict requirements on factory environmental hygiene (dust emissions).

[0026] The structural design of the shell 15 of the present invention includes a head shell 21, an intermediate shell 22, an inspection section 23 and a tail shell 24 from beginning to end. The head shell 21 is located at the upper end of the shell 15, and is mainly used to accommodate the top part of the feeding component 14. The discharge port 13 is downwardly arranged on one side of the head shell 21, so that the material can be discharged from the discharge port 13 by gravity after being lifted to the top. The intermediate shell 22 is made of transparent material, which can intuitively observe the operating status of the feeding component 14 and the material transportation situation, so that the operator can find the possible jamming, blockage or other abnormal conditions that may occur during the transportation process in time, and reduce the losses caused by shutdown due to faults. The inspection section 23 is located in the middle of the shell 15, and inspection ports 231 are evenly opened around it for daily inspection, maintenance and troubleshooting of the equipment. Each access port 231 is secured with an access cover 232 via bolts 233. The covers 232 can be quickly removed and installed, allowing operators to access the equipment interior to inspect the chain plates 17 and hopper 18 or remove residual material. The tail housing 24, located at the lower end of the housing 15, supports the bottom of the feed assembly 14 and is directly connected to the feed port 12. The feed port 12 is positioned upward on one side of the tail housing 24, facilitating material delivery via external conveying equipment or manual input.

[0027] See also Figure 4 In this embodiment, an observation port 241 is provided on the side of the tail housing 24 opposite the feed port 12. The observation port 241 is connected to an observation cover 243 via a clamping handle 242. The observation cover 243 can be made of a transparent material, allowing the operator to directly view the operating status of the tail feed assembly 14, particularly the material feeding status, the running trajectory of the chain plate 17, and any possible jamming. Mounting brackets 244 are provided on either side of the observation port 241. The mounting brackets 244 have elongated holes and are threaded with locking bolts 245 at their ends. Pins at both ends of the clamping handle 242 pass through the elongated holes and are then secured by the locking bolts 245. This ensures the stability of the connection of the observation cover 243 and prevents it from loosening and detaching due to vibration during operation of the machine body 11, resulting in material spillage.

[0028] See also Figure 3 The drive assembly 16 includes a drive motor 33, a reducer 34, a chain transmission mechanism 35, a head shaft 36, and a tail shaft 37. A drive platform 31 is provided on the periphery of the head housing 21. The drive platform 31 is provided on the periphery of the head housing 21, providing a stable support base. The discharge port 13 is provided below one side of the drive platform 31, and a drive device frame 32 is provided above the other side of the drive platform 31. The drive motor 33 and the reducer 34 are mounted and fixed on the drive device frame 32, and the motor shaft of the drive motor 33 is connected to the input shaft of the reducer 34. The two ends of the head shaft 36 are rotatably connected to the head housing 15 through the head bearing seat 362, and the head shaft 36 is sleeved and fixed with a load-bearing sprocket 361 that meshes with the chain plate 17. The tail shaft 37 is rotatably and slidably provided on the tail housing 24, and the tail shaft 37 is sleeved and fixed with a supporting roller 371 that fits the chain plate 17. The reducer 34 and the head shaft 36 are connected by a chain transmission mechanism 35. The reducer 34 is used to convert the high-speed rotation of the drive motor 33 into a low-speed, high-torque output suitable for the chain drive mechanism 35, thereby optimizing the operating efficiency of the hoist. In this embodiment, the drive motor 33 and the input shaft of the reducer 34 are connected via a hydraulic coupling 38, and the drive motor 33 and the input shaft of the reducer 34 are connected via a hydraulic coupling 38. The hydraulic coupling 38 provides a torque buffering function, reducing impact forces during startup and operation, thereby extending the service life of the drive assembly 16.

[0029] See also Figure 5In this embodiment, the tail housing 24 is symmetrically provided with two sets of side sealing plates 46. These side sealing plates 46 are slidably connected to a sliding plate 43. A weight rack 41 is fixedly attached to the upper portion of the sliding plate 43. The weight rack 41 is slidably mounted on the tail housing 24 and carries a plurality of weight blocks 42. The sliding plate 43 is fixedly mounted to the weight rack 41. The tail bearing seat 372 is fixedly mounted to the sliding plate 43. Vertical slots 461 are defined in the side sealing plates 46. Both ends of the tail shaft 37 pass through the slots 461 and are rotatably connected to the tail bearing seat 372. The weight rack 41 presses the sliding plates 43 downwardly through the weight of the weight blocks 42, thereby adjusting the tension of the feed assembly 14 (chain plate 17). This facilitates the downward separation of material accumulated in the tail housing 24 by the pressure-driven hopper 18, allowing for the subsequent circulation of the material. In addition, a tail material clearing door 246 is provided on both sides of the bottom of the tail casing 24, and a pair of handles 247 are provided on the tail material clearing door 246, which makes it convenient for the operator to open the tail material clearing door 246 through the handles 247 and clean up the materials remaining in the tail casing 24 that have not been transported away by the feeding component 14.

[0030] In this embodiment, both ends of the weight frame 41 are provided with a cylinder 44 for driving it downward. The cylinder body 441 of the cylinder 44 is fixed to the tail housing 24. The cylinder body 441 of the cylinder 44 is fixed to the outside of the tail housing 24 and is fixed to the tail housing 24 by bolts or welding. The piston rod 442 of the cylinder 44 is connected and fixed to the end of the weight frame 41 through an elastic block 45. The elastic block 45 plays a role in buffering and shock absorption. Under the drive of the cylinder 44, the piston rod 442 pushes the weight frame 41 downward. At the same time, the elasticity of the elastic block 45 can prevent excessive impact force from being directly transmitted to the weight frame 41 and the tail housing 24. By uniformly pressing down the two ends of the weight frame 41 by the cylinder 44 in this embodiment, the problem caused by uneven accumulation of materials in the tail housing 24 is effectively solved. Specifically, when the material accumulates in the rear housing 24 with one side higher and the other lower, the hopper 18 cannot evenly flatten the material simply by relying on the weight of the weight block 42, resulting in uneven distribution of the material within the hopper 18. This uneven distribution can cause the overall center of gravity of the feed assembly 14 to shift, resulting in inconsistent pressure on both ends of the head shaft 36 during operation, further leading to uneven variations in the spacing between the chain plates 17, and even potentially causing the chain plates 17 to stretch and wear more severely, affecting the conveying effect and the long-term stability of the equipment. Therefore, in this embodiment, the cylinder 44 drives both ends of the weight frame 41 to evenly press down, allowing the weight frame 41 to evenly and stably act on the material during operation, thereby maintaining balance in the material within the hopper 18 during conveying.

[0031] See also Figure 6The connection between the head shaft 36 and the head housing 21 is provided with a side pressure plate 365. The side pressure plate 365 and the side sealing plate 46 are both connected and fixed with a sealing box 51 via threaded connectors. The sealing box 51 includes a sealing gasket 52 and a sealing cover 53. The rotating pair between the sealing cover 53 and the head shaft 36 or the tail shaft 37 is provided with a sealing rubber ring 54. The threaded connector includes a stud 55 fixed to the side pressure plate 365 and the side sealing plate 46 and a nut 56 threadedly adapted to the stud 55. The double sealing design of the sealing box 51 through the sealing gasket 52 and the sealing rubber ring 54 can effectively prevent material from leaking from the connection between the head shaft 36 and the head housing 21, ensuring the cleanliness of the conveying process. In addition, the ends of the head bearing seat 362 and the tail bearing seat 372 are provided with an embedded transparent cover 363 or an embedded blind cover 364, wherein the embedded transparent cover 363 can pass through the head shaft 36 or the tail shaft 37 to form an oil seal so that the head shaft 36 and the tail shaft 37 remain lubricated during rotation.

[0032] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. A sealed and protected plate chain hoist, characterized in that: The machine body comprises a machine body, a feed port is provided at the bottom of the machine body, a discharge port is provided at the top of the machine body, a feeding assembly is provided in the machine body, the machine body further comprises a sealing shell provided on the outside of the feeding assembly, a driving assembly is fixedly mounted on the shell, the driving assembly drives the feeding assembly to circulate the material from the feed port to the discharge port, and the feeding assembly comprises a plurality of hoppers connected in sequence end to end by chain plates; The housing includes, from top to bottom, a head housing, an intermediate housing, an inspection section, and a tail housing. The discharge port is downwardly arranged on one side of the head housing, and the feed port is upwardly arranged on the other side of the tail housing. The intermediate housing is made of transparent material. Inspection openings are provided around the inspection section, and the inspection openings are fixed with inspection covers by fixing bolts. The driving assembly includes a driving motor, a reducer, a head shaft and a tail shaft of a chain transmission mechanism. A driving platform is provided on the outer periphery of the head casing, the discharge port is provided below one side of the driving platform, and a driving device frame is provided above the other side of the driving platform. The driving motor and the reducer are installed and fixed on the driving device frame, and the motor shaft of the driving motor is connected to the input shaft of the reducer. The two ends of the head shaft are rotatably connected to the head casing through the head bearing seat, and the head shaft is sleeved and fixed with a load-bearing sprocket that meshes with the chain plate. The tail shaft is rotatably and slidably set on the tail casing, and the tail shaft is sleeved and fixed with a supporting wheel that fits the chain plate. The reducer and the head shaft are connected by a chain transmission mechanism, and the driving motor and the input shaft of the reducer are connected by a hydraulic coupling.

2. The sealed and protected plate chain hoist according to claim 1, characterized in that: The tail casing is symmetrically provided with two groups of side sealing plates, which are slidably connected to the sliding plates up and down, and a heavy hammer frame is connected and fixed above the sliding plate. The heavy hammer frame is slidably set on the tail casing and several groups of heavy hammer blocks are placed on the heavy hammer frame. The sliding plate is fixed with a tail bearing seat, and a sliding groove is vertically opened on the side sealing plate. The two ends of the tail shaft pass through the sliding groove and are rotatably connected to the tail bearing seat.

3. The sealed and protected plate chain hoist according to claim 1, characterized in that: A side pressure plate is provided at the connection between the head shaft and the head housing. The side pressure plate and the side sealing plate are both connected and fixed with a sealing box through a threaded connection. The sealing box includes a sealing gasket and a sealing cover. The rotating pair between the sealing cover and the head shaft or the tail shaft is provided with a sealing rubber ring. The threaded connection includes a stud fixed on the side pressure plate and the side sealing plate and a nut adapted to be threaded with the stud.

4. The sealed and protected plate chain hoist according to claim 2, characterized in that: Both ends of the weight frame are provided with cylinders for driving it to press downward, the cylinder body of the cylinder is fixed on the tail casing, and the piston rod of the cylinder is connected and fixed to the end of the weight frame through an elastic block.

5. The sealed and protected plate chain hoist according to claim 1, characterized in that: An observation port is provided on the side of the tail casing opposite to the feed port, and the observation port is fixed with an observation cover through a clamping handle. Fixed frames are provided on both sides of the observation port, and the fixed frames are provided with long holes and locking bolts are screwed on the ends. The pin shafts at both ends of the clamping handle pass through the long holes and are locked and fixed by locking bolts.

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