Efficient plate chain bucket elevator

Abstract

The utility model belongs to the technical field of elevators, and discloses an efficient plate chain bucket elevator which comprises a shell frame, a driving device, a plate chain assembly and a hopper, the driving device comprises a driving chain wheel and a driven chain wheel, and the driving chain wheel and the driven chain wheel adopt an asymmetric tooth-shaped design; the plate chain assembly comprises a plurality of connected sub-plate chains, the sub-plate chains are symmetrically connected with the two sides of the hopper through fixing structures, a feeding port is formed in one side of the bottom of the shell frame, a discharging port is formed in the other side of the top of the shell frame, the discharging port is located at the bottom of a fixing frame on the driving device, and a curved-surface flow guide plate is arranged on the discharging port. The curvature radius R of the curved flow guide plate is 1.2-1.5 times the projection length of the hopper, the tooth surfaces of the driving chain wheel and the driven chain wheel are each provided with a tungsten carbide-cobalt hard alloy layer, the alloy layer thickness of the tungsten carbide-cobalt hard alloy layers is larger than or equal to 3 mm, and the hardness of the tungsten carbide-cobalt hard alloy layers is larger than or equal to HRC60. According to the utility model, not only can the lifting bearing capacity and the stability of the whole structure of the machine be improved, but also the abrasion rate and the loss of no-load power can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to a high-efficiency plate chain bucket elevator. Background Technology

[0002] The high-efficiency plate chain bucket elevator is a continuous conveying equipment used for vertically conveying powdery, granular, or small block materials. Its core feature is the combination of high-strength metal plate chains and buckets to achieve stable lifting under high load and great height. It also has high efficiency characteristics such as low energy consumption, stable operation, and simple maintenance.

[0003] Traditional plate chain bucket elevators have the following technical defects:

[0004] 1) The connection structure between the chain and the hopper is not rigid enough, and it is prone to deformation under heavy load conditions, resulting in large vibration during operation;

[0005] 2) The sprocket tooth design did not take into account the material characteristics, resulting in a high wear rate. Therefore, we proposed a high-efficiency plate chain bucket elevator. Utility Model Content

[0006] In view of the problems of insufficient rigidity of the connection structure between the chain and the bucket in the existing chain bucket elevator, which makes it prone to deformation under heavy load conditions, resulting in large vibration during operation, and the high wear rate caused by the failure of the chain wheel tooth design to take into account the material characteristics, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a high-efficiency plate chain bucket elevator, which aims to improve the load-bearing capacity and reduce no-load power loss by adopting a fixed structure and an asymmetrical double-row sprocket design.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A high-efficiency plate chain bucket elevator includes a frame, a drive unit, a plate chain assembly, and buckets. The drive unit includes a drive sprocket and a driven sprocket, and the drive sprocket and the driven sprocket adopt an asymmetrical tooth profile design.

[0010] The plate chain assembly includes several interconnected sub-plate chains, which are symmetrically connected to both sides of the hopper via a fixed structure.

[0011] As a technical solution of the high-efficiency plate chain bucket elevator of this utility model, the bottom side of the shell frame is provided with a feed inlet for feeding, the top side of the shell frame is provided with a discharge outlet for discharging, and the discharge outlet is located at the bottom of the fixed frame on the drive device.

[0012] As a technical solution of the high-efficiency plate chain bucket elevator of this utility model, the discharge port is provided with a curved guide plate, and the radius of curvature R of the curved guide plate is 1.2-1.5 times the projected length of the bucket.

[0013] As a technical solution of the high-efficiency plate chain bucket elevator of this utility model, the tooth surfaces of the driving sprocket and the driven sprocket are provided with tungsten carbide-cobalt hard alloy layers, and the alloy layer thickness of the tungsten carbide-cobalt hard alloy layer is ≥3mm and the hardness is ≥HRC60.

[0014] As a technical solution of the high-efficiency plate chain bucket elevator of this utility model, the working side pressure angle α1 of the driving sprocket and the driven sprocket 202 is 25°±1°, and the non-working side pressure angle α2 is 20°±1°.

[0015] As a technical solution of the high-efficiency plate chain bucket elevator of this utility model, the fixing structure includes a fixing seat symmetrically arranged and installed on the inner side of the sub-plate chain. The fixing seat is symmetrically arranged with two sets of fixing holes. The fixing seat is installed on the bucket through the fixing holes and fixing bolts. A nylon wear-resistant pad is provided between the contact surface of the fixing seat and the bucket.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. This utility model, through the symmetrically arranged fixed structure connecting the chain plate assembly and the bucket, can improve the load-bearing capacity and overall structural stability of the elevator, while avoiding chain plate wear caused by uneven loading.

[0018] 2. This utility model, by adopting an asymmetric design for the driving sprocket and the driven sprocket, and by overlaying a tungsten carbide-cobalt hard alloy layer on the tooth surfaces of the driving sprocket and the driven sprocket, can reduce the wear rate and reduce the loss of no-load power, while also reducing operating noise and improving transmission efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall main structure of this utility model.

[0021] Figure 2 This is a schematic side view of the overall structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the assembly structure of the sub-plate chain of this utility model, which is connected to the hopper through a fixed structure.

[0023] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the diagram: 1. Frame; 101. Inlet; 102. Outlet; 103. Curved guide plate; 2. Drive unit; 201. Drive sprocket; 202. Driven sprocket; 301. Sub-plate chain; 4. Hopper; 501. Fixing seat; 502. Fixing hole; 503. Nylon wear-resistant pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0029] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] Reference Figures 1-4A high-efficiency plate chain bucket elevator is provided. This high-efficiency plate chain bucket elevator includes a frame 1, a drive unit 2, a plate chain assembly and a bucket 4. The drive unit 2 includes a drive sprocket 201 and a driven sprocket 202. The drive sprocket 201 and the driven sprocket 202 adopt an asymmetrical tooth profile design. In application, the asymmetrical design of the drive sprocket 201 and the driven sprocket 202 can reduce the loss of no-load power, while reducing operating noise and improving transmission efficiency.

[0031] The plate chain assembly includes several connected sub-plate chains 301. The sub-plate chains 301 are symmetrically connected to both sides of the hopper 4 through a fixed structure. In application, the symmetrical fixed structure connecting the plate chain assembly and the hopper 4 can improve the load-bearing capacity and overall structural stability of the elevator, while avoiding wear of the chain plates caused by uneven loading.

[0032] Reference Figure 1 and Figure 2 The bottom side of the housing 1 is provided with a feed inlet 101 for feeding, and the top side of the housing 1 is provided with a discharge outlet 102 for discharging. The discharge outlet 102 is located at the bottom of the fixed frame on the drive device 2. In application, the feed inlet 101 and the discharge outlet 102 are designed to be staggered, which can optimize the material lifting path and reduce the risk of backflow and blockage. At the same time, the discharge outlet 102 is located below the drive device 2, which can use gravity to assist in discharging, thereby reducing energy consumption.

[0033] Reference Figure 1 and Figure 2 A curved guide plate 103 is provided on the discharge port 102, and the radius of curvature R of the curved guide plate 103 is 1.2-1.5 times the projected length of the hopper 4, so as to ensure that the material is smoothly discharged along the curved surface of the curved guide plate 103, thereby reducing impact and residue and improving discharge efficiency.

[0034] Reference Figure 1 and Figure 2 Both the drive sprocket 201 and the driven sprocket 202 have tungsten carbide-cobalt hard alloy layers on their tooth surfaces. The thickness of the tungsten carbide-cobalt hard alloy layer is ≥3mm and the hardness is ≥HRC60, so as to enhance the wear resistance of the sprockets and extend their service life.

[0035] Reference Figure 1 and Figure 2 The working side pressure angle α1 of the driving sprocket 201 and the driven sprocket 202 is 25°±1°, and the non-working side pressure angle α2 is 20°±1°. In application, the design of the asymmetric pressure angle can optimize the force distribution on the tooth surface, thereby reducing friction loss on the non-working side and reducing energy consumption.

[0036] Reference Figure 1 , Figure 3 as well as Figure 4The fixing structure includes a fixing seat 501 symmetrically arranged and installed on the inner side of the sub-plate chain 301. The fixing seat 501 has two sets of fixing holes 502 symmetrically arranged. The fixing seat 501 is installed on the hopper 4 through the fixing holes 502 and fixing bolts. A nylon wear-resistant pad 503 is provided between the contact surface of the fixing seat 501 and the hopper 4. In application, the symmetrical fixing hole 502 design facilitates installation and adjustment. The nylon wear-resistant pad 503 buffers vibration and reduces wear on the metal contact surface, thereby extending the service life of the connection between the hopper 4 and the sub-plate chain 301.

[0037] This utility model provides a high-efficiency plate chain bucket elevator. Through material strengthening (such as hard alloy layer), structural optimization (asymmetric tooth shape, guide plate curvature) and detail improvement (wear-resistant pad, fixing hole layout), the elevator can achieve high efficiency, low consumption and long service life performance improvement, and is suitable for high-load and continuous operation industrial scenarios.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high efficiency apron chain bucket elevator comprising a housing frame (1), a drive device (2), an apron chain assembly and a hopper (4), characterized in that: The drive device (2) includes a drive sprocket (201) and a driven sprocket (202), and the drive sprocket (201) and the driven sprocket (202) adopt an asymmetrical tooth profile design; The plate chain assembly includes several connected sub-plate chains (301), which are symmetrically connected to both sides of the hopper (4) through a fixed structure.

2. The high efficiency apron chain bucket elevator of claim 1, wherein: The bottom side of the housing (1) is provided with a feed inlet (101) for feeding, and the top side of the housing (1) is provided with a discharge outlet (102) for discharging, and the discharge outlet (102) is located at the bottom of the fixed frame on the drive device (2).

3. The high performance apron chain bucket elevator of claim 2, wherein: The discharge port (102) is provided with a curved guide plate (103), and the radius of curvature R of the curved guide plate (103) is 1.2-1.5 times the projected length of the hopper (4).

4. The high efficiency slat bucket elevator of claim 1, wherein: Both the driving sprocket (201) and the driven sprocket (202) have tungsten carbide-cobalt hard alloy layers on their tooth surfaces, and the alloy layer thickness of the tungsten carbide-cobalt hard alloy layer is ≥3mm and the hardness is ≥HRC60.

5. The high performance apron conveyor as claimed in claim 4, characterized in that: The working side pressure angle α1 of the driving sprocket (201) and the driven sprocket (202) is 25°±1°, and the non-working side pressure angle α2 is 20°±1°.

6. The high efficiency slat bucket elevator of claim 1, wherein: The fixing structure includes a fixing seat (501) symmetrically arranged and installed on the inner side of the sub-plate chain (301). The fixing seat (501) has two sets of fixing holes (502) symmetrically arranged. The fixing seat (501) is installed on the hopper (4) through the fixing holes (502) and fixing bolts. A nylon wear-resistant pad (503) is provided between the contact surface of the fixing seat (501) and the hopper (4).

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