A belt conveyor vertical heavy hammer tensioning roller overhauling device and using method

Abstract

The application provides a belt conveyor vertical weight tensioning roller maintenance device and a use method, which comprises an electric hoist, a steel wire rope set, a fixed pulley set, a counterweight, a counterweight fixing base, a movable support arm, a fixed support arm and a manual push rod. The electric hoist drives the reel inside to release the rope, and the steel wire rope set and the counterweight move downward due to gravity. When the lower end hinge hole of the counterweight falls to coincide with the upper end hinge hole of the counterweight fixing base, the electric hoist stops and stops releasing the rope. At this time, the counterweight and the counterweight fixing base are connected by a pin shaft. Then, the electric hoist is started, and the electric hoist drives the reel inside to wind the rope. At this time, the vertical weight device rises upward with the fixed pulley set on it. When the limit switch is touched, the electric hoist stops. The movable support arm is unfolded and fixed at the working position value. At this time, workers can conveniently and efficiently check, maintain and other operations on the maintenance platform. The application can be applied to the technical field of belt conveyors.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial belt conveyors, and in particular to a belt conveyor vertical weight tensioning roller maintenance device and a use method thereof. Background Art

[0002] Belt conveyors are a versatile type of conveying equipment widely used in modern production. They operate by connecting a conveyor belt into a closed loop and tensioning it with a tensioning device. Vertical weight tensioning devices are widely used on medium-distance belt conveyors. Vertical weight tensioning devices play a crucial role in equipment operation. To ensure the continuous and efficient operation of belt conveyors, regular inspection and maintenance of the tensioning roller, a key component, are essential to improve performance.

[0003] At present, there are many methods for the maintenance of tension drums. The most common maintenance method is to use a hand chain hoist to hang the tension drum on the steel structure to lift the tension drum, and then manually tie the rope to move the tension drum to the designated platform for maintenance. This method has the following problems in actual use:

[0004] (1) It requires a lot of maintenance personnel to cooperate with each other to complete the task, resulting in high labor costs;

[0005] (2) The method of using a hand chain hoist to lift the tensioning drum is time-consuming, labor-intensive, and extremely inefficient;

[0006] (3) During maintenance, accidents such as unhooking are prone to occur after the tensioning drum is lifted, which poses a great safety hazard;

[0007] (4) The hand chain hoist is manually operated, and the action is discontinuous. It has a fluctuating effect on the tension release of the belt during operation, which will reduce the service life of the belt conveyor.

[0008] In view of the above problems, it is urgent to develop a belt conveyor vertical weight tensioning roller maintenance device and a method of use to solve the above problems caused by the traditional maintenance method of the tensioning roller. Summary of the Invention

[0009] In response to the aforementioned technical problems, a belt conveyor vertical weight tensioning drum maintenance device and method for use are provided. This invention primarily utilizes a hoist to raise the tensioning device and a modular support arm to secure the weight box and tensioning drum. This solves the drawbacks of difficult hoisting, low work efficiency, and the susceptibility to safety accidents in daily production, thereby improving the stability of the belt conveyor's tensioning system and extending the service life of the belt conveyor.

[0010] The technical means adopted in the present invention are as follows:

[0011] A belt conveyor vertical weight tensioning roller maintenance device and its use method, comprising: an electric winch, a wire rope group, a fixed pulley group, a counterweight block, a counterweight fixed base, a movable support arm, a fixed support arm, a manual push rod, a positioning rod and a limit switch;

[0012] The electric winch is fixed on the ground frame;

[0013] One end of the wire rope is fixed to the end of the drum of the electric winch, and the other end is fixed to the wire rope counterweight after being wound through 6 sets of fixed pulleys. The 2 sets of fixed pulleys are fixed to the vertical weight tensioning device frame and rise and fall together with the vertical weight tensioning device.

[0014] There are reamed holes on both ends of the counterweight. The upper reamed hole is used to fix the wire rope group, and the lower reamed hole is connected to the ground counterweight fixing base through a pin shaft.

[0015] The movable support arm includes: a rotating arm and a fixed base;

[0016] The lower end of the rotating arm is hinged to the upper end of the fixed base;

[0017] The above-mentioned fixed base is fixed on the steel structure beam;

[0018] The bottom of the fixed support arm is fixed to the steel structure beam, and the fixed support arm rod body is provided with at least two positioning through holes, and the front of the rod body is provided with an oblong through hole for the manual push rod operation space;

[0019] The manual push rod is welded with round steel and round pipe to form an I-shaped structure, one end of which is hinged to the middle of the movable support arm, that is, the manual push rod can rotate around the round steel of the movable support arm through the hinge shaft, and a positioning socket is provided on the manual push rod body;

[0020] The positioning rod is bent into an L shape by round steel, and is inserted into the positioning hole of the manual push rod and the positioning through hole of the fixed support arm to fix the manual push rod to the fixed support arm;

[0021] The limit switch is placed on the tensioning guide rod of the vertical weight tensioning device, and the control signal of the limit switch is interlocked with the electric winch controller.

[0022] The counterweight fixed base is made of welded structural steel plates. The upper end of the vertical connecting plate is reamed and equipped with a pin. The bottom of the counterweight fixed base is fixed to the concrete foundation by anchor bolts.

[0023] The working principle of the present invention adopting the above technical solution is:

[0024] The driving mode of the electric hoist is adopted, the steel wire rope group is wound around the fixed pulley group, the both ends of the counterweight block are hinged to the end of the steel wire rope group and the counterweight fixed base on the ground respectively through the pin shaft, the electric hoist is started to pull up the tension drum, when the limit switch is touched, the electric hoist is stopped, then the four groups of movable supporting arms around the tension drum are unfolded and fixed on the vertical weight tension device frame, the operation of checking and maintaining the tension drum on the maintenance platform is realized.

[0025] The use and operation method are as follows: when the tension drum needs to be maintained and repaired, the electric hoist is started, the electric hoist drives the internal drum to be in the state of releasing the rope, the steel wire rope group is wound through the group pulley, the end is fixed with the counterweight block, the counterweight block drives the steel wire rope group to move downward due to the weight, when the lower hinge hole position of the counterweight block falls to the upper hinge hole of the counterweight fixed base, the electric hoist is stopped, the drum stops releasing the rope, at this time, the pin shaft on the counterweight fixed base is used to connect the counterweight block and the counterweight fixed base together; then the electric hoist is started, the electric hoist drives the internal drum to be in the state of winding the rope, at this time, the vertical weight device is lifted upward together with the fixed pulley group thereon, when the vertical weight device touches the limit switch, the electric hoist is stopped; the positioning plug rod on the fixed supporting arm is manually pulled out, the movable supporting arm is pushed to the clamping groove of the vertical weight tension device by lifting the manual push rod, the positioning plug rod is used to pass through the positioning holes of the manual push rod and the fixed supporting arm, so that the movable supporting arm is fixed in the working position, and the four groups of movable supporting arms around the vertical weight device are fixed in the clamping groove of the working position in the same way; the electric hoist is started, the drum is appropriately released to make the vertical weight tension device completely press on the movable supporting arm, at this time, the electric hoist is stopped, the worker can conveniently and efficiently check and maintain the tension drum on the maintenance platform. When it is not working, the movable supporting arm and the counterweight block are adjusted to the preset position in the reverse order of the above method, and the belt conveyor can return to normal work.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] 1. The mechanism has simple structure, requires fewer maintenance workers, is convenient to operate, safe and stable, the vertical weight tension device is lifted by the electric hoist during maintenance, and the vertical weight tension device is fixed by the combined supporting arm, so that the problems of difficult hoisting of the tension drum, low work efficiency and easy occurrence of safety accidents are solved, and the stability of the belt conveyor system is improved.

[0028] 2. When the belt conveyor is normally operated, the counterweight block of the mechanism automatically tensions the steel wire rope with the upward and downward movement of the vertical weight tension device, so that the tension device continuously and stably operates.

[0029] 3. The mechanism can efficiently and stably release the belt tension, and provides safe and reliable protection for the replacement and vulcanization of the conveyor belt. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0031] Figure 1 It is a schematic diagram of the working state structure of the present application.

[0032] Figure 2 It is a schematic diagram of the A-A sectional structure of the working state of the present application.

[0033] Figure 3 It is a schematic diagram of the non-working state structure of the present application.

[0034] Figure 4 It is a schematic diagram of the B-B sectional structure of the non-working state of the present application.

[0035] Figure 5 It is a schematic diagram of the fixed pulley block steel wire rope winding of the present application.

[0036] In the drawings:

[0037] 1, electric hoist 2, steel wire rope group 3, fixed pulley block 4, counterweight 5, counterweight fixed base 6, movable support arm 61, rotating arm 62, fixed base 7, fixed support arm 8, manual push rod 9, positioning insertion rod 10, limit switch. DETAILED DESCRIPTION

[0038] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort also belong to the protection scope of the present application.

[0040] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0041] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless otherwise specifically stated. It is also to be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale, and that for purposes of convenience and clarity in understanding the present application, common terms have been used for like components throughout. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail but are intended to be part of the scope of the present application. In all examples shown and discussed herein, any numerical value should be interpreted as merely an example, and not a limitation. Thus, other examples of the example embodiments can have different values. It is to be noted that like reference numerals and letters refer to like items in the drawings and, as such, once an item is defined in one drawing, it is not necessary to discuss it further in subsequent drawings.

[0042] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are used only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the outline of the components themselves.

[0043] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "below" other elements or features would then be oriented "below" or "above" other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0044] In addition, it should be pointed out that the use of "first", "second" and the like words to limit parts, only for the convenience of the corresponding parts for the distinction, such as no other declaration, the above words have no special meaning, therefore can not be understood as the limitation of the scope of the present application.

[0045] As shown in Figures 1 to 5 The present application provides a belt conveyor vertical heavy hammer tensioning drum maintenance device and method, comprising: electric hoist 1, steel wire rope group 2, fixed pulley group 3, counterweight 4, counterweight fixed base 5, movable support arm 6, fixed support arm 7, manual push rod 8, positioning plug rod 9, limit switch 10.

[0046] Its structural features are as follows: the electric winch 1 is fixed to the ground frame, one end of the wire rope group 2 is fixed to the drum end of the electric winch 1, and the other end is fixed to the wire rope counterweight 4 after passing through 6 groups of fixed pulley groups 3. The two groups of fixed pulley groups 3 are fixed to the vertical weight tensioning device frame and rise and fall with the vertical weight tensioning device; the counterweight 4 is provided with reaming holes at the upper and lower ends, the upper end reaming hole is used to fix the wire rope group 2, and the lower end reaming hole can be connected to the ground counterweight fixed base 5 through a pin shaft, and the counterweight 4 itself has strong tensile strength; the counterweight fixed base 5 is composed of structural steel plates welded together, the upper end of the vertical connecting plate is reamed and equipped with a pin shaft, and the bottom of the counterweight fixed base 5 is fixed to the concrete foundation by anchor bolts; the movable support arm 6 is made of round steel and steel plates welded into a rotating part (rotating arm 61), and is welded into a fixed base (fixed base 62) by steel plates, which is bolted The fixed base is connected to the steel structure beam; the fixed support arm 7 is composed of a square steel tube and a steel plate welded together, two positioning through holes are set on the side of the square steel tube, and a long round through hole is set on the front of the square steel tube for operating space of the manual push rod 8, and the fixed support arm 7 is fixed to the steel structure beam by bolts; the manual push rod 8 is welded by round steel and round tube to form an I-shaped structure, with small-diameter round steel as a handle and large-diameter round steel as a push rod. The round tube welded at its end is sleeved on the middle round steel of the movable support arm 6, and the manual push rod 8 can rotate around the round steel of the movable support arm 6 through the round tube. The push rod round steel is provided with positioning sockets for different working positions of the movable support arm 6; the positioning plug rod 9 is bent into an L shape by round steel to fix the manual push rod 8 to the fixed support arm 7; the limit switch 10 is placed on the tensioning guide rod and interlocked with the electric winch 1. When the tensioning device touches the limit switch 10, the electric winch 1 stops working.

[0047] Its working principle is: adopt the driving mode of electric winch 1, pass the fixed pulley group 3 through the wire rope group 2, use the pin shaft to connect the holes at both ends of the counterweight block 4 to the ends of the wire rope group 2 and the counterweight fixed base 5 on the ground respectively, start the electric winch 1 to pull the tensioning drum upward, and when it touches the limit switch 10, the electric winch 1 stops, and then unfolds the four groups of movable support arms 6 around the tensioning drum and fixes them on the vertical hammer tensioning device frame A, so that workers can inspect and maintain the tensioning drum on the maintenance platform.

[0048] Its use and operation method is: when the tensioning drum needs maintenance, start the electric hoist 1, make the electric hoist 1 drive its internal reel in the rope state, the steel wire rope group 2 is wound after passing through 6 groups of pulleys, the tail end is fixed with the counterweight 4, the counterweight 4 drives the steel wire rope group 2 to move downward due to gravity, when the lower end hinge hole position of the counterweight 4 falls to coincide with the upper end hinge hole of the counterweight fixed base 5, the electric hoist 1 stops, the reel stops paying out rope, at this time, the counterweight 4 and the counterweight fixed base 5 are connected together by the pin shaft on the counterweight fixed base 5; then start the electric hoist 1, make the electric hoist 1 drive its internal reel in the rope state, at this time, the vertical weight device will be lifted upward with the fixed pulley block 3 on it, when the vertical weight device touches the limit switch 10, the electric hoist 1 stops; manually pull out the positioning plug rod 9 on the fixed support arm 7, lift the manual push rod 8 to push the movable support arm 6 into the clamping groove of the vertical weight tensioning device, pass the positioning plug rod 9 through the positioning hole of the manual push rod 8 and the fixed support arm 7, so that the movable support arm 6 is fixed in the working position, and so on, fix the four movable support arms 6 around the vertical weight device in the clamping groove of the working position; start the electric hoist 1, the reel is appropriately paid out to make the vertical weight tensioning device completely press on the movable support arm 6, at this time, the electric hoist 1 stops, the worker can conveniently and efficiently check, maintain and operate on the maintenance platform. When not working, the movable support arm 6 and the counterweight 4 are adjusted to the position as Figure 3 The belt conveyor can resume normal work.

[0049] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A belt conveyor vertical weight tensioning roller maintenance device, characterized by: include: Electric winch (1), wire rope assembly (2), fixed pulley assembly (3), counterweight (4), counterweight fixed base (5), movable support arm (6), fixed support arm (7), manual push rod (8), positioning rod (9) and limit switch (10); The electric winch (1) is fixed to the ground frame; one end of the wire rope group (2) is fixed to the end of the drum of the electric winch (1), and the other end is fixed to the wire rope counterweight (4) after winding through 6 sets of fixed pulley groups (3); the two sets of fixed pulley groups (3) are fixed to the vertical weight tensioning device frame (A) and rise and fall together with the vertical weight tensioning device; the counterweight (4) is provided with reaming holes at both ends, the upper end reaming hole is used to fix the wire rope group (2), and the lower end reaming hole is connected to the ground counterweight fixed base (5) through a pin shaft; the movable support arm (6) includes: a rotating arm (61) and a fixed base (62); the lower end of the rotating arm (61) is hinged to the upper end of the fixed base (62); the fixed base (62) is fixed to the steel structure beam (B); the bottom of the fixed support arm (7) is fixed to the steel structure beam (B ), and the fixed support arm (7) rod body is provided with at least two positioning through holes, and the front of the rod body is provided with a long round through hole for the manual push rod (8) to operate; the manual push rod (8) is welded by round steel and round tube to form an I-shaped structure, one end of which is hinged to the middle of the movable support arm (6), that is, the manual push rod (8) can rotate around the round steel of the movable support arm (6) through the hinge shaft, and a positioning socket is provided on the rod body of the manual push rod (8); the positioning plug rod (9) is bent into an L shape by round steel, and the positioning socket of the manual push rod (8) and the positioning through hole of the fixed support arm (7) are inserted to fix the manual push rod (8) to the fixed support arm (7); the limit switch (10) is placed on the tensioning guide rod (C) of the vertical weight tensioning device, and the control signal of the limit switch (10) is connected to the electric winch (1) controller; The movable support arm (6) is welded from round steel and steel plates into a rotating arm (61), and the fixed base (62) is welded from steel plates, and the fixed base (62) is connected to the steel structure beam (B) by bolts; The fixed support arm (7) is formed by welding a square steel tube and a steel plate. Two positioning through holes are set on the side of the square steel tube. An oblong through hole for the manual push rod operation space is set on the front of the square steel tube. The fixed support arm (7) is fixed to the steel structure beam by bolts. The manual push rod (8) is formed by welding round steel and round tube to form an I-shaped structure, with the small-diameter round steel as the handle and the large-diameter round steel as the push rod. The round tube welded at the end thereof is sleeved onto the middle round steel of the movable support arm. The manual push rod (8) can rotate around the round steel of the movable support arm through the round tube. Positioning sockets for different working positions of the movable support arm are provided on the push rod round steel.

2. The method for using the vertical weight tensioning roller maintenance device for a belt conveyor according to claim 1 is characterized in that: The following steps are involved: Step 1: Confirm that the drum needs maintenance and repair; Step 2: Start the electric winch and put the drum of the electric winch in the rope-releasing state. The wire rope group moves downward with the counterweight. When the reaming hole at the lower end of the counterweight drops to coincide with the reaming hole at the upper end of the counterweight fixed base, the electric winch stops and the counterweight is connected to the counterweight fixed base with a pin shaft. Step 3: Then start the electric winch and put the drum of the electric winch into the rope-retracting state. At this time, the vertical weight device will rise upward together with the fixed pulley group on it. When the vertical weight device touches the limit switch, the electric winch stops; Step 4: Lift the manual push rod and push the four sets of movable support arms into the slots of the vertical weight tensioning device to fix the movable support arms in the working position. Start the electric winch and properly release the rope from the drum to fully press the vertical weight tensioning device onto the movable support arms. At this time, the electric winch stops and workers can inspect and maintain the tensioning drum. Step 5: When not in operation, follow the reverse order of the above method to adjust the movable support arm and counterweight block to the preset position, and the belt conveyor can resume normal operation.

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