Double-roller combined type heavy hammer tensioning device

Abstract

The utility model discloses a double-roller combined type heavy hammer tensioning device, which belongs to the technical field of heavy hammer tensioning devices and comprises a heavy hammer tower, three turnabout rollers arranged at intervals are mounted at the top of the heavy hammer tower, and a heavy hammer tensioning roller capable of sliding and lifting and a belt storage roller capable of being adjusted in a lifting manner are mounted in the heavy hammer tower. A heavy hammer box is connected and mounted on the lower side of the heavy hammer tensioning roller; and the heavy hammer tensioning roller and the belt storage roller are respectively arranged between the two adjacent turnabout rollers. The conveying belt is tensioned through the heavy hammer tensioning roller of the heavy hammer box, and the storage belt is pulled down through the belt storage roller, so that the conveying belt is conveniently and quickly adjusted, the tension of the conveying belt is achieved, and the conveying belt is ensured not to slip during operation; the problem that a long-distance belt type conveying tensioning tower is too high is effectively avoided; compared with a double-roller tensioning type heavy hammer tensioning device, a heavy hammer box is not arranged below the belt storage roller, the height of a heavy hammer tower is greatly reduced, and the requirement that a long-distance belt conveyor uses a vertical heavy hammer tensioning device is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heavy hammer tensioner technical field, specifically a double drum compound heavy hammer tensioner. BACKGROUND

[0002] For belt conveyor, the tensioner is an important part to keep the conveyor belt from slipping. The heavy hammer tensioner is a kind of tensioner widely used in belt conveyor, which mainly realizes the tensioning of the conveyor belt through the weight of the heavy hammer. This device uses the weight of the heavy hammer to generate tensioning force, so as to ensure that the conveyor belt can maintain constant tension under various working conditions.

[0003] The heavy hammer tensioner has the advantages of simple structure, reliable work, and can automatically compensate the elongation change caused by temperature change and conveyor belt wear, so as to maintain constant tension. In addition, the device also has the characteristics of convenient maintenance and fast tensioning, and can buffer the impact force of the belt in time when the tension of the conveying belt changes suddenly, reduce the damage of the belt and prolong its service life.

[0004] The heavy hammer tensioner can be divided into several forms, including vertical heavy hammer tensioner, vehicle type heavy hammer tensioner and tower type heavy hammer tensioner. The vertical heavy hammer tensioner is usually arranged at the lower part of the conveyor, which is installed by using the height space of the belt conveyor corridor or trestle, has the advantages of simple structure, convenient maintenance, can effectively maintain the proper tension of the conveyor belt, ensure the stability and reliability of the conveying process, and is widely used.

[0005] However, for the belt conveyor with long transportation distance, the conventional vertical heavy hammer tensioner is often limited in application because the heavy hammer tower needs to be designed to be very high. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the problem that the conventional vertical heavy hammer tensioner is often limited in application because the heavy hammer tower needs to be designed to be very high for the belt conveyor with long transportation distance, the utility model provides a double drum compound heavy hammer tensioner.

[0007] The utility model is realized through the following technical schemes:

[0008] A double drum compound heavy hammer tensioner, comprising a heavy hammer tower, three redirecting drums are positioned and installed at the top of the heavy hammer tower in transverse interval, a heavy hammer tensioning drum and a belt storage drum which can be lifted and adjusted are installed in the heavy hammer tower, a heavy hammer box is connected and installed at the lower side of the heavy hammer tensioning drum; the heavy hammer tensioning drum and the belt storage drum are respectively arranged between two adjacent redirecting drums.

[0009] The further improvement of the utility model still has, still includes heavy hammer tension frame, heavy hammer tension cylinder is rotationally installed on heavy hammer tension frame through bearing seat, heavy hammer box is installed on the downside of heavy hammer tension frame, heavy hammer tower inside is installed with heavy hammer guide rod that can be to heavy hammer tension frame vertical sliding guide.

[0010] The further improvement of the utility model still has, the upside of heavy hammer tension frame is installed with the protective cover that can cover and protect heavy hammer tension cylinder and the bearing seat of both ends thereof.

[0011] The further improvement of the utility model still has, the protective cover is in herringbone type bending board shape structure, and both ends extend to the above of the bearing seat of heavy hammer tension cylinder.

[0012] The further improvement of the utility model still has, still includes storage belt cylinder installation frame, storage belt cylinder is installed on storage belt cylinder installation frame through bearing seat, and heavy hammer tower is vertically installed with storage belt cylinder guide rod that can be to storage belt cylinder installation frame vertical guide.

[0013] The further improvement of the utility model still has, a plurality of groups of adjusting installation holes that can be connected with storage belt cylinder installation frame installation are vertically spaced apart on storage belt cylinder guide rod.

[0014] The further improvement of the utility model still has, two oil cylinders that are connected with the upper portion of storage belt cylinder installation frame installation are vertically installed on the upper portion of heavy hammer tower.

[0015] The further improvement of the utility model still has, storage belt cylinder guide rod is installed with belt tension detection device that can be to belt state detection.

[0016] The further improvement of the utility model still has, the bottom of storage belt cylinder guide rod is equipped with bottom limiting rod that can be to storage belt cylinder limiting.

[0017] The further improvement of the utility model still has, heavy hammer tower is in frame structure, including a plurality of horizontal, vertical connection's connecting beam, the symmetrical setting of diagonal brace is equipped with in the rectangular frame of each vertical formation.

[0018] From the above technical scheme, the beneficial effects of the utility model are:

[0019] In use, the conveying belt sequentially passes through the first redirection roller, the heavy hammer tensioning roller, the second redirection roller, the belt storage roller and the third redirection roller, the heavy hammer tensioning roller of the belt hammer box is used to tension the conveying belt, the belt storage roller is used to pull down the belt storage, so that the conveying belt is conveniently and quickly adjusted, the tension of the conveying belt is achieved, the running conveying belt is prevented from slipping, the tensioning stroke of the conventional heavy hammer tensioning device is shortened to two and a half of the original, the height of the original tensioning tower is reduced to half of the original, and the problem of the long distance belt type conveying tensioning tower being too high is effectively avoided, and compared with the double roller tensioning type heavy hammer tensioning device, the available stroke of the heavy hammer is further improved while the effective tensioning force is ensured, since the heavy hammer box is not arranged below the belt storage roller, the belt storage roller can fall to the lowest position according to the requirement, so that the height of the heavy hammer tower is greatly reduced, the demand of the long distance belt type conveyor for the vertical heavy hammer tensioning device is met, and the device can be used in multiple groups side by side according to the actual engineering condition in actual application. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the present application, the drawings required to be used in the description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0021] Figure 1 It is a structural schematic diagram of the embodiment of the present application.

[0022] Figure 2 It is a tensioning principle schematic diagram of the embodiment of the present application.

[0023] Figure 3 It is a top view schematic diagram of the embodiment of the present application.

[0024] Figure 4 It is a belt storage roller installation schematic diagram in an embodiment of the embodiment of the present application.

[0025] Figure 5 It is a belt storage roller structure schematic diagram of the embodiment of the present application.

[0026] Figure 6 It is a belt storage roller installation schematic diagram in another embodiment of the embodiment of the present application.

[0027] Figure 7 It is a side view structure schematic diagram of the embodiment of the present application. Figure 6

[0028] Figure 8 It is a heavy hammer tensioning roller structure schematic diagram of the embodiment of the present application. ​

[0029] Figure 9 It is a side view schematic diagram of a heavy hammer tensioning roller according to a specific embodiment of the present utility model.

[0030] In the attached drawings: 1. Weight tower, 11. Connecting beam, 12. Diagonal brace, 2. Weight box, 3. Weight tensioning roller, 31. Protective cover, 4. Weight tensioning frame, 5. Storage roller guide rod, 51. Adjustment mounting hole, 6. Storage roller, 61. Storage roller mounting frame, 7. Redirection roller, 8. Oil cylinder, 9. Belt tensioning detection device. DETAILED DESCRIPTION

[0031] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0032] like Figures 1-3 As shown, the utility model discloses a double-drum composite weight tensioning device, including a weight tower 1, three redirecting rollers 7 arranged at laterally intervals are positioned and installed on the top of the weight tower 1, a slidable and liftable weight tensioning roller 3 and a liftable and adjustable belt storage roller 6 are installed in the weight tower 1, and a weight box 2 is connected to the lower side of the weight tensioning roller 3; the weight tensioning roller 3 and the belt storage roller 6 are respectively arranged between two adjacent redirecting rollers 7.

[0033] When using, such as Figures 1-2 As shown, the conveyor belt passes through the first redirecting roller 7, the weight tensioning roller 3, the second redirecting roller 7, the belt storage roller 6, and the third redirecting roller 7 in sequence. The weight tensioning roller 3 with the weight box 2 tensions the conveyor belt, and the belt storage roller 6 pulls down the belt, allowing for convenient and rapid adjustment of the conveyor belt tension to achieve the desired belt tension and prevent the conveyor belt from slipping. Compared to a dual-roller weight tensioning device, this device not only maintains effective tension but also increases the available weight travel. Since there is no weight box below the belt storage roller 6, the belt storage roller 6 can be lowered to the lowest position as needed, significantly reducing the weight tower height and meeting the requirements for vertical weight tensioning devices used on long-distance belt conveyors. In actual applications, multiple groups of this device can be used side by side, depending on the actual project situation. The overall structure is simple, easy to use, and highly practical.

[0034] The heavy hammer tower 1 is in a frame structure, comprising a plurality of transversely and vertically connected connecting beams 11; each vertically formed rectangular frame is provided with symmetrically arranged inclined braces 12. The inclined braces 12 are connected from the middle of the upper transverse connecting beam 11 to the bottom of the two side vertical connecting beams 11. The structural strength and load bearing capacity of the heavy hammer tower 1 are ensured.

[0035] As shown in Figure 1 , 2 , 8, 9, the double-drum composite heavy hammer tensioning device further comprises a heavy hammer tensioning frame 4, the heavy hammer tensioning drum 3 is rotatably installed on the heavy hammer tensioning frame 4 through a bearing seat, and the heavy hammer box 2 is installed on the lower side of the heavy hammer tensioning frame 4; the heavy hammer guide rod capable of vertically sliding guiding the heavy hammer tensioning frame 4 is installed in the heavy hammer tower 1. The heavy hammer tensioning drum 3 is vertically slidably guided by the heavy hammer guide rod, and the counterweight of the heavy hammer box 2 is used, so that the tensioning function of the heavy hammer tensioning drum 3 on the conveying belt is realized.

[0036] Further, the upper side of the heavy hammer tensioning frame 4 is provided with the protective cover 31 capable of covering and protecting the heavy hammer tensioning drum 3 and the bearing seats at both ends thereof. The heavy hammer tensioning drum 3 and the bearing seats at both sides thereof are covered and protected by the protective cover 31, so that the influence on the rotation of the heavy hammer tensioning drum 3 is effectively avoided.

[0037] As shown in Figures 8-9 , the protective cover 31 is in a herringbone-shaped bent plate structure, and the both ends extend above the two bearing seats of the heavy hammer tensioning drum 3. The heavy hammer tensioning drum 3 and the bearing seats at both sides thereof are effectively covered and protected, and the falling objects at the upper part can be guided to the lower part.

[0038] As shown in Figure 3 , 5 , the double-drum composite heavy hammer tensioning device further comprises a belt storage drum mounting frame 61, and the belt storage drum 6 is installed on the belt storage drum mounting frame 61 through a bearing seat; the belt storage drum guide rod 5 capable of vertically guiding the belt storage drum mounting frame 61 is vertically installed in the heavy hammer tower 1. The bottom of the belt storage drum guide rod 5 is connected with the embedded foundation, the top is connected with the top transverse connecting beam 11 of the heavy hammer tower 1 through bolts, and the side is connected with the connecting beam 11 of the heavy hammer tower 1 through welding. The vertical position of the belt storage drum 6 is adjusted, and the following two embodiments are given:

[0039] For the vertical position adjustment of the belt storage drum 6, the following two embodiments are given:

[0040] In one embodiment, as shown in Figure 4As shown, a plurality of groups of adjusting mounting holes 51 capable of being connected and mounted with the storage belt drum mounting frame 61 are vertically spaced apart on the storage belt drum guide rod 5. By passing bolts through the storage belt drum mounting frame 61 and connecting with different adjusting mounting holes 51, the vertical position of the storage belt drum 6 is conveniently adjusted and reliably fixed.

[0041] In another embodiment, as shown in the figure, Figure 6 , 7 As shown, two oil cylinders 8 are vertically mounted on the upper part of the heavy hammer tower 1 and are connected and mounted with the upper part of the storage belt drum mounting frame 61. By controlling the extension and retraction of the oil cylinder 8, the storage belt drum mounting frame 61 is downwardly supported, thereby conveniently adjusting the vertical position of the storage belt drum 6. The constant tension is ensured by the oil cylinder 8, and the pressure and displacement state of the oil cylinder 8 is monitored. The relevant information should be displayed on the on-site control box touch screen, CMS, and remote control platform. Each oil cylinder 8 can realize single-cylinder control function, and the tension control must realize on-site, remote (driver's room and remote control platform), and automatic adjustment control functions.

[0042] As shown in the figure, Figure 7 The belt tension detection device 9 capable of detecting the state of the belt is mounted on the storage belt drum guide rod 5. The tightness of the conveyor belt is detected by the belt tension detection device 9, thereby adjusting the vertical position of the storage belt drum 6.

[0043] Further, the bottom part of the storage belt drum guide rod 5 is provided with a bottom limiting rod capable of limiting the storage belt drum 6. The safety in use is ensured by effectively preventing the storage belt drum 6 from colliding with the bottom.

[0044] The double-drum composite heavy hammer tensioning device, in use, as shown in the figure, Figures 1-2 The conveyor belt passes through the first redirection drum 7, the heavy hammer tensioning drum 3, the second redirection drum 7, the storage belt drum 6, and the third redirection drum 7 in sequence. The conveyor belt is tensioned by the heavy hammer tensioning drum 3 of the heavy hammer box 2, and the storage belt is pulled down by the storage belt drum 6, thereby conveniently and quickly adjusting the conveyor belt, achieving the tension of the conveyor belt, and ensuring that the running conveyor belt does not slip. Compared with the double-drum tensioning type heavy hammer tensioning device, while ensuring the effective tensioning force, the available stroke of the heavy hammer is further improved. Since the heavy hammer box is not arranged below the storage belt drum 6, the storage belt drum 6 can fall to the lowest position as needed, thereby greatly reducing the height of the heavy hammer tower and meeting the needs of long-distance belt conveyors using vertical heavy hammer tensioning devices. In actual application, the device can be used in multiple groups side by side according to the actual engineering situation. The overall structure is simple, convenient to use, and good in practicability.

[0045] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0046] The terms "upper", "lower", "outer" "inner" and the like in the description and the claims of the present utility model and the above drawings, if any, are used to distinguish relative positions, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0047] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dual-drum compound weight tensioner characterized by, The device comprises a heavy hammer tower (1), three redirection rollers (7) are arranged transversely and spaced apart on the top of the heavy hammer tower (1), a heavy hammer tensioning roller (3) and a storage belt roller (6) are installed in the heavy hammer tower (1) and can be slidably lifted, a heavy hammer box (2) is connected and installed on the lower side of the heavy hammer tensioning roller (3), and the heavy hammer tensioning roller (3) and the storage belt roller (6) are arranged between two adjacent redirection rollers (7) respectively.

2. The dual-drum compound weight tensioner of claim 1, wherein, The device further comprises a heavy hammer tensioning frame (4), the heavy hammer tensioning roller (3) is rotatably installed on the heavy hammer tensioning frame (4) through a bearing seat, and the heavy hammer box (2) is installed on the lower side of the heavy hammer tensioning frame (4); the heavy hammer tower (1) is internally provided with a heavy hammer guide rod capable of vertically sliding and guiding the heavy hammer tensioning frame (4).

3. The dual-drum compound weight tensioner of claim 2, wherein, A protective cover (31) capable of covering and protecting the heavy hammer tensioning roller (3) and the bearing seats at both ends thereof is installed on the upper side of the heavy hammer tensioning frame (4).

4. The dual-drum compound weight tensioner of claim 3, wherein, The protective cover (31) is in the shape of a herringbone bending plate and extends to above the two bearing seats of the heavy hammer tensioning roller (3) at both ends.

5. The dual-drum compound weight tensioner of claim 1, wherein, The device further comprises a storage belt roller mounting frame (61), the storage belt roller (6) is installed on the storage belt roller mounting frame (61) through a bearing seat; the heavy hammer tower (1) is vertically installed with a storage belt roller guide rod (5) capable of vertically guiding the storage belt roller mounting frame (61).

6. The dual drum compound weight tensioner of claim 5, wherein, A plurality of groups of adjustment mounting holes (51) capable of being connected and installed with the storage belt roller mounting frame (61) are vertically and spaced apart on the storage belt roller guide rod (5).

7. The dual drum compound weight tensioner of claim 5, wherein, Two oil cylinders (8) connected and installed with the upper part of the storage belt roller mounting frame (61) are vertically installed on the upper part of the heavy hammer tower (1).

8. The dual drum compound weight tensioner of claim 7, wherein, A belt tensioning detection device (9) capable of detecting the state of the belt is installed on the storage belt roller guide rod (5).

9. The dual drum compound weight tensioner of claim 7, wherein, A bottom limiting rod capable of limiting the bottom of the storage belt roller (6) is arranged on the bottom of the storage belt roller guide rod (5).

10. The dual-drum compound weight tensioner of claim 1, wherein, The heavy hammer tower (1) is in a frame structure and comprises a plurality of transversely and vertically connected connecting beams (11); each vertically formed rectangular frame is provided with symmetrically arranged diagonal braces (12).

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