Gravity type lifting belt tensioning device of bucket elevator

Abstract

The utility model discloses a gravity type lifting belt tensioning device of a bucket elevator, which comprises an elevator main body and a lifting belt tensioning device arranged on the elevator main body, and the lifting belt tensioning device comprises a tensioning box component, a counterweight box and a connecting beam component which are arranged on two sides of the elevator main body; the counterweight box is arranged at the upper end of the connecting beam assembly; the connecting beam assembly is arranged at the upper end of the elevator body and connected with the two sides of the tensioning box assembly. Guide frames are arranged on the elevator body along the two sides of the tensioning box assembly. A guide rail is arranged on the lead frame; the tensioning box assembly is matched with the guide rail to move up and down through the balance weight box and the supporting beam assembly. The elevator is reasonable in structural design, the tensioning box assembly, the balance weight box and the connecting beam assembly are arranged on the two sides of the elevator body, the guide frame and the guide rail are arranged on the elevator body, and therefore the tensioning box assembly can be matched with the guide rail to move up and down through the balance weight box and the supporting beam assembly. Therefore, automatic adjustment of the belt tensioning force is achieved.

Description

Technical Field

[0001] The utility model relates to the field of elevators, in particular to a gravity-type lifting belt tensioning device of a bucket elevator. Background Art

[0002] In existing technology, the tension of an elevator is typically adjusted manually by adjusting the screw in the tensioning mechanism. During bucket elevator operation, the tension of the lifting belt, also known as the belt, significantly impacts its performance and stability. Existing tensioning mechanisms have several deficiencies in their structural design and operating principles. Some tensioning mechanisms lack flexibility, making it difficult to effectively adjust the belt tension in real time based on actual operating conditions. The complex structures of some tensioning mechanisms lead to high installation and maintenance costs and are prone to failure. Furthermore, the stability and reliability of some tensioning mechanisms over long periods of use need to be improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a gravity-type lifting belt tensioning device for a bucket elevator in view of the current status of the existing technology.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a gravity-type lifting belt tensioning device of a bucket elevator, including an elevator body and a lifting belt tensioning device arranged on the elevator body, the lifting belt tensioning device including a tensioning box assembly, a counterweight box and a connecting beam assembly arranged on both sides of the elevator body; the counterweight box is provided at the upper end of the connecting beam assembly; the connecting beam assembly is provided at the upper end of the elevator body and connects both sides of the tensioning box assembly; guide frames are provided on both sides of the tensioning box assembly along the upper edge of the elevator body; guide rails are provided on the wire frame; the tensioning box assembly cooperates with the guide rails to move up and down through the counterweight box and the support beam assembly.

[0005] Preferably, the tensioning box assembly includes a box body and an axle seat arranged in the box body; the box body includes an upper support plate, a lower support plate, a back plate and two side plates; a fixed support plate is provided in the box body; the axle seat is arranged on the back plate through the fixed support plate; the box body moves up and down in cooperation with the guide rail through the side plates arranged on both sides of the box body.

[0006] Preferably, the connecting beam assembly includes a fixed support and a fixed beam; the counterweight box is arranged on the fixed support; the fixed beam is arranged at the lower end of the fixed support to connect the side plates on both sides of the box body.

[0007] Preferably, a rotating shaft and a roller arranged on the rotating shaft are provided in the elevator body; a guide opening is provided on the elevator body to cooperate with the up and down movement of the rotating shaft; and both ends of the rotating shaft pass through the box body through the guide opening and are connected to the shaft seat.

[0008] Preferably, a limiting unit is provided on the hoist body; the limiting unit includes a first limiting support plate and a second limiting support plate; the first limiting support plate is provided at the upper end of the box body, and the second limiting support plate is provided at the lower end of the box body.

[0009] Preferably, a screw is passed through the upper support plate; a limiting nut and a tensioning support plate arranged between the fixed beams are provided on the screw; the box body is adjusted up and down by the screw, the limiting nut and the tensioning support plate.

[0010] Preferably, a pressure block corresponding to the fixed support is also provided on the hoist body.

[0011] Compared with the existing technology, the advantages of the present invention are: by arranging the tensioning box assembly, counterweight box, and connecting beam assembly on both sides of the hoist body, and providing a guide frame and guide rails on the hoist body, the tensioning box assembly can move up and down in coordination with the guide rails through the counterweight box and support beam assembly. This achieves automatic adjustment of the belt tension, ensuring that the belt tension level of the hoist is always at an appropriate level under different operating conditions, and improving the stability and reliability of the hoist operation. Furthermore, screws installed in the box bodies on both sides cause the box bodies to move downward along the guide rails, thereby manually adjusting the belt tension in the hoist body 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a structural diagram of the belt tensioning device of the utility model;

[0014] Figure 3 It is a structural diagram of the main body of the hoist of the utility model;

[0015] Figure 4 It is a structural sectional view of the present utility model.

[0016] Figure numerals: 1. Hoist body; 2. Belt tensioning device; 3. Tensioning box assembly; 4. Counterweight box; 5. Connecting beam assembly; 6. Guide frame; 7. Guide rail; 8. Box body; 9. Axle seat; 81. Upper support plate; 82. Lower support plate; 83. Back plate; 84. Side plate; 10. Fixed support plate; 11. Fixed support; 12. Fixed beam; 13. Roller; 14. Rotating shaft; 15. Guide opening; 16. Limiting unit; 17. First limiting support plate; 18. Second limiting support plate; 19. Screw; 20. Limiting nut; 21. Tensioning support plate; 22. Pressure block. DETAILED DESCRIPTION

[0017] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0018] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] Moreover, some of the above-mentioned terms may be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For ordinary technicians in this field, the specific meanings of these terms in this utility model can be understood according to the specific circumstances.

[0020] Furthermore, the terms "installed," "disposed," "equipped with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal connections between two devices, elements, or components. The connection methods discussed herein are prior art and are common knowledge to those skilled in the art without modification. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0021] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] In this embodiment 1,

[0023] like Figures 1 to 4 As shown, the utility model provides a gravity belt tensioning mechanism of a bucket elevator, comprising an elevator body 1 and a belt tensioning device 2 arranged on the elevator body 1, the belt tensioning device 2 comprising a tensioning box assembly 3, a counterweight box 4 and a connecting beam assembly 5 arranged on both sides of the elevator body 1; the counterweight box 4 is provided with the upper end of the connecting beam assembly 5; the connecting beam assembly 5 is provided at the upper end of the elevator body 1 and connected to both sides of the tensioning box assembly 3; guide frames 6 are provided on both sides of the tensioning box assembly 3 along the upper edge of the elevator body 1; guide rails 7 are provided on the wire frame; the tensioning box assembly 3 moves up and down in cooperation with the guide rails 7 through the counterweight box 4 and the support beam assembly.

[0024] By arranging the tensioning box assembly 3, the counterweight box 4, and the connecting beam assembly 5 on both sides of the hoist body 1, and providing the guide frame 6 and the guide rail 7 on the hoist body 1, the tensioning box assembly 3 can move up and down in coordination with the guide rail 7 through the counterweight box 4 and the supporting beam assembly. This achieves automatic adjustment of the belt tension, ensuring that the belt tension is always in an appropriate state under different working conditions of the hoist, and improving the stability and reliability of the hoist operation.

[0025] The tensioning box assembly 3 includes a box body 8 and an axle seat 9 arranged in the box body 8; the box body 8 includes an upper support plate 81, a lower support plate 82, a back plate 83 and side plates 84 on both sides; a fixed support plate 10 is provided in the box body 8; the axle seat 9 is set on the back plate 83 through the fixed support plate 10; the box body 8 cooperates with the guide rail 7 to move up and down through the side plates 84 arranged on both sides of the box body 8.

[0026] The tension box assembly 3 includes a box body 8 comprising an upper support plate 81, a lower support plate 82, a back plate 83, and side plates 84. A shaft seat 9 and a fixed support plate 10 are provided within the box body 8, allowing the box body 8 to move up and down in coordination with the guide rails 7 via the side plates 84. This design makes the tension box assembly 3 more stable, operates more smoothly, and can accurately respond to changes in tension, thereby improving accuracy and reliability.

[0027] The connecting beam assembly 5 includes a fixed support 11 and a connecting beam; the counterweight box 4 is arranged on the fixed support 11; the fixed beam 12 is arranged at the lower end of the fixed support 11 and connects the side plates 84 on both sides of the box body 8.

[0028] The fixed support 11 is provided to provide a fixed platform for the counterweight box 4. The installation of the counterweight box 4 is more stable, and the fixed beam 12 can effectively transmit force and movement, ensuring the stable up and down movement of the tensioning box assembly 3, thereby enhancing stability and reliability.

[0029] The elevator body 1 is provided with a rotating shaft 14 and a roller 13 arranged on the rotating shaft 14; the elevator body 1 is provided with a guide opening 15 for cooperating with the up and down movement of the rotating shaft 14; the two ends of the rotating shaft 14 pass through the box body 8 through the guide opening 15 and are connected to the shaft seat 9.

[0030] A roller 13 and a rotating shaft 14 mounted on the roller 13 are disposed within the elevator body 1. A guide opening 15 is provided on the elevator body 1 to coordinate with the up and down movement of the rotating shaft 14. The two ends of the rotating shaft 14 pass through the guide opening 15 and pass through the box body 8 to connect to the shaft seat 9. This arrangement effectively connects and coordinates the internal components of the elevator with the tensioning box assembly 3, allowing the belt tension adjustment to closely coordinate with the operating state of the elevator, thereby improving overall operating efficiency and stability.

[0031] A limiting unit 16 is provided on the hoist body 1 ; the limiting unit 16 includes a first limiting support plate 17 and a second limiting support plate 18 ; the first limiting support plate 17 is provided at the upper end of the box body 8 , and the second limiting support plate 18 is provided at the lower end of the box body 8 .

[0032] A limiting unit 16 comprising a first limiting support plate 17 and a second limiting support plate 18 is provided on the hoist body 1, respectively disposed at the upper and lower ends of the box body 8. This effectively limits the range of movement of the tensioning box assembly 3, preventing malfunction or damage caused by excessive movement, ensuring that tensioning adjustment is performed within a safe and reliable range, and improving the safety and stability of the equipment.

[0033] The upper support plate 81 is provided with a screw 19 ; the screw 19 is provided with a limiting nut 20 and a tensioning support plate 21 arranged between the fixed beams 12 ; the box body 8 is adjusted up and down by the screw 19 in conjunction with the limiting nut 20 and the tensioning support plate 21 .

[0034] By inserting a screw rod 19 through the upper support plate 81, and providing a limit nut 20 and a tension support plate 21 on the screw rod 19, the box body 8 can be moved up and down by manually adjusting the screw rod 19. At the same time, the tension support plate 21 and the limit nut 20 limit the position of the screw rod 19. This adjustable design increases the flexibility and precision of the tension adjustment, allowing for more precise adjustment of the tension force according to actual needs to adapt to different working requirements and conditions.

[0035] The hoist body 1 is further provided with a pressing block 22 corresponding to the fixed support 11 .

[0036] A pressure block 22 corresponding to the fixed support 11 is provided on the hoist body 1. This effectively prevents the fixed support 11 from compressing and deforming the hoist body 1 when it descends, further improving the reliability and stability of the entire tensioning mechanism.

[0037] like Figures 1 to 4As shown, the working principle of the present invention is as follows: when the belt is in a loose state, the counterweight box 4 is pressed downward by gravity, driving the fixed support 11 and the connecting beam connected to the fixed support 11 to move downward, and the box body 8 moves downward through the connecting beam, and then the side plates 84 on both sides of the box body 8 cooperate with the guide rails 7 on both sides of the guide frame 6 to move downward. At the same time, the two ends of the rotating shaft 14 are respectively connected to the shaft seats 9 in the box body 8 on both sides of the elevator body 1, so that the rotating shaft 14 moves downward along the guide opening 15. The belt is set on the rotating shaft 14 and is pressed downward by gravity, thereby realizing self-adjustment of the belt tension, ensuring that the belt tension of the elevator is always in an appropriate state under different working conditions, thereby improving the stability and reliability of the elevator operation.

[0038] In this embodiment 2, Figures 1 to 4 As shown, when the belt is in a loose state, the box body 8 can be moved downward along the guide rail 7 by adjusting the screws 19 on both sides, and then the belt in the elevator body 1 can be manually tensioned by tightening the limit nut 20 and the tensioning support plate 21.

[0039] In the description of this specification, reference is made to the terms "one embodiment", "some embodiments", "examples", "specific examples", etc.

[0040] Descriptions such as "example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0041] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, and bonding in the existing technology, which will not be described in detail here.

[0042] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scope based on the concept of the present invention. The content of this specification should not be understood as a limitation of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A gravity-type lifting belt tensioning device for a bucket elevator, comprising an elevator body and a lifting belt tensioning device provided on the elevator body, characterized in that: The lifting belt tensioning device includes a tensioning box assembly, a counterweight box and a connecting beam assembly arranged on both sides of the hoist body; the counterweight box is arranged on the upper end of the connecting beam assembly; the connecting beam assembly is arranged on the upper end of the hoist body and connects the two sides of the tensioning box assembly; guide frames are arranged on both sides of the tensioning box assembly along the upper edge of the hoist body; guide rails are provided on the guide frames; the tensioning box assembly moves up and down in cooperation with the guide rails through the counterweight box and the support beam assembly.

2. The gravity-type lifting belt tensioning device for a bucket elevator according to claim 1, characterized in that: The tensioning box assembly includes a box body and an axle seat arranged in the box body; the box body includes an upper support plate, a lower support plate, a back plate and side plates on both sides; a fixed support plate is provided in the box body; the axle seat is arranged on the back plate through the fixed support plate; the box body moves up and down in cooperation with the guide rail through the side plates arranged on both sides of the box body.

3. The gravity-type lifting belt tensioning device for a bucket elevator according to claim 2, characterized in that: The connecting beam assembly includes a fixed support and a fixed beam; the counterweight box is arranged on the fixed support; the fixed beam is arranged at the lower end of the fixed support and connects the side plates on both sides of the box body.

4. The gravity-type lifting belt tensioning device for a bucket elevator according to claim 3, characterized in that: A rotating shaft and a roller arranged on the rotating shaft are arranged in the hoist body; a guide opening is opened on the hoist body to cooperate with the up and down movement of the rotating shaft; both ends of the rotating shaft pass through the box body through the guide opening and are connected to the shaft seat.

5. The gravity-type lifting belt tensioning device for a bucket elevator according to claim 4, characterized in that: A limiting unit is provided on the hoist body; the limiting unit includes a first limiting support plate and a second limiting support plate; the first limiting support plate is provided at the upper end of the box body, and the second limiting support plate is provided at the lower end of the box body.

6. The gravity-type lifting belt tensioning device for a bucket elevator according to claim 5, characterized in that: The upper support plate is provided with a screw rod; the screw rod is provided with a limit nut and a tension support plate arranged between the fixed beams; the box body is adjusted up and down by the screw rod, the limit nut and the tension support plate.

7. The gravity-type lifting belt tensioning device for a bucket elevator according to claim 6, characterized in that: The hoist body is also provided with a pressure block corresponding to the fixed support.

Images