Z-type elevator driving device with continuous tensioning mechanism

Abstract

The utility model discloses a Z-type hoister driving device with a continuous tensioning mechanism, which belongs to the technical field of Z-type hoisters and comprises a hoister shell, a plurality of groups of chain wheels are arranged in the hoister shell, the chain wheels on the same side are in transmission connection through chains, a plurality of material conveying boxes are rotatably connected between every two chain wheels, and the material conveying boxes are connected with the hoister shell. A discharging hopper and a feeding hopper are fixedly installed at the upper end and the lower end of the elevator shell respectively, the feeding hopper is located over the material conveying box, an anti-blocking mechanism is arranged in the elevator shell located below the material conveying box, a driving mechanism is fixedly installed on one side of the upper end of the elevator shell, and a first tensioning mechanism is arranged on the driving mechanism. Due to the arrangement of the first tensioning mechanism and the second tensioning mechanism, it can be guaranteed that the chain wheel and the chain are in a tensioning state all the time, normal operation of the elevator is guaranteed, and meanwhile the automatic protection function of the elevator is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of Z-type hoists, and in particular relates to a Z-type hoist driving device with a continuous tensioning mechanism. Background Art

[0002] Z-type elevator is also called bucket elevator. It can transport horizontally and vertically. It can transport various powdery and granular materials. It is widely used in food, cosmetics, chemical and pharmaceutical industries, hardware and electrical materials industries, metallurgical manufacturing, mining and other industries.

[0003] The problems existing in the prior art are: the driving device of the existing Z-type hoist is generally placed at the bottom or top of the hoist, which drives the Z-type hoist sprocket to rotate, thereby achieving the operation of the entire machine, and the number of effective driving contact teeth of the Z-type hoist chain and sprocket is one-fourth of the number of sprocket teeth. The smaller the number of contact teeth, the greater the wear on the sprocket and chain. In addition, the tensioning device of the Z-type hoist is generally a screw tensioning device. After the equipment has been running for a period of time, the chain will become loose. The tensioning chain is generally adjusted by a screw rod, and maintenance personnel are required to frequently check the tightness of the chain, which makes the work cumbersome. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a Z-type hoist drive device with a continuous tensioning mechanism, which has the advantage of automatic protection of the hoist sprocket and chain, and solves the problem that the tensioning device of the existing Z-type hoist is generally a screw tensioning device, and the chain will become loose after the equipment has been running for a period of time. The tensioning chain is generally adjusted by a screw rod, and maintenance personnel are required to frequently check the tightness of the chain, which causes cumbersome work.

[0005] The utility model is implemented as follows: a Z-type elevator drive device with a continuous tensioning mechanism comprises an elevator housing, movable grooves are provided on both sides of the lower end of the elevator housing, a plurality of sprockets are arranged in the elevator housing, and the plurality of sprockets are distributed along the running track of the elevator housing, a plurality of sprockets on the same side are connected by chain transmission, a plurality of material transport boxes are rotatably connected between two sprockets, a discharge hopper and a feed hopper are fixedly installed at the upper and lower ends of the elevator housing respectively, the feed hopper is located directly above the material transport box, an anti-blocking mechanism is provided in the elevator housing located below the material transport box, a driving mechanism is fixedly installed on one side of the upper end of the elevator housing, a first tensioning mechanism is provided on the driving mechanism, and a second tensioning mechanism is provided at the lower end of the elevator housing.

[0006] As a preferred embodiment of the utility model, a support leg is fixedly installed at the lower end of the elevator shell, a perspective window is provided on one side of the lower end of the elevator shell, the perspective window is arranged corresponding to the anti-blocking mechanism, and a cover is rotatably installed on the elevator shell corresponding to the perspective window.

[0007] As a preferred embodiment of the utility model, the anti-blocking mechanism includes a material scale, the material scale is fixedly installed in the elevator casing, a weighing sensor is fixedly installed at the rear end of the material scale, a material receiving box is placed on the material scale, and the material receiving box is located below the material transport box and corresponds to the position of the perspective window.

[0008] As a preferred embodiment of the utility model, the driving mechanism includes a mounting plate, the mounting plate is fixedly mounted on one side of the upper end of the elevator housing, a guide rail is provided on the upper surface of the end of the mounting plate away from the elevator housing, and a slider is slidably connected in the guide rail.

[0009] As a preferred embodiment of the utility model, a base is fixedly mounted on the upper surface of the slider, a driving motor is fixedly mounted on the base, a second pulley is fixedly connected to the output shaft of the driving motor, and one side of the second pulley is rotatably mounted on the mounting plate.

[0010] As a preferred embodiment of the present invention, a connecting rod is fixedly connected to the outer wall of the upper end of the elevator housing, the inner end of the connecting rod is fixedly connected to the sprocket located at the outermost end, and the outer fixed sleeve of the connecting rod is provided with a first bearing, and the first bearing is fixedly mounted on the elevator housing.

[0011] As a preferred embodiment of the present invention, the outer end of the connecting rod is fixedly connected to a first pulley, and the first pulley is connected to the second pulley through a belt transmission.

[0012] As a preferred embodiment of the utility model, the first tensioning mechanism includes a first bearing plate, the first bearing plate is fixedly mounted on the mounting plate, a first electric push rod is fixedly mounted on the first bearing plate, a first pressure sensor is fixedly connected to the output end of the first electric push rod, and the first pressure sensor is fixedly connected to one side of the machine base.

[0013] As a preferred embodiment of the utility model, the second tensioning mechanism includes two second bearing plates, the two second bearing plates are respectively fixedly mounted on both sides of the lower end of the hoist casing, a second electric push rod is fixedly mounted on each of the second bearing plates, each of the second electric push rod output ends is fixedly connected to a second pressure sensor, each of the second pressure sensors is fixedly connected to a moving block on one side, each of the moving blocks is fixedly sleeved with a second bearing, and the two second bearings are respectively fixedly sleeved on both ends of the rotating shaft of the lower end sprocket.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model can collect splashed and flying materials during the unloading process through the setting of the anti-blocking mechanism, so that the materials fall into the receiving box. Once the receiving box is full of materials and it is detected, the weighing sensor will send a signal, prompting the elevator and the buzzer to jointly alarm, so as to prompt the operator to clean up as soon as possible, thereby ensuring the smooth operation of the elevator.

[0016] 2. The number of teeth contacting the sprocket and the chain in the utility model reaches half of that of the sprocket gear, which conforms to the normal mechanical transmission principle and prolongs the service life of the sprocket and the chain in the Z-type hoist.

[0017] 3. The utility model adopts a driving motor to drive the first pulley to rotate, and then drives the sprocket to rotate. When the elevator fails, such as the sprocket and chain are stuck or the elevator transport box is turned abnormally and causes the elevator to be stuck, when the force required by the driving motor is greater than the normal operating force, the first electric push rod will drive the driving motor to slide in the direction close to the elevator, causing the driving mechanism to slip, which plays a role of automatic protection, thereby avoiding damage to the equipment.

[0018] 4. The utility model can ensure that the sprocket and the chain are always in a tensioned state through the arrangement of the first tensioning mechanism and the second tensioning mechanism, thereby ensuring the normal operation of the elevator and enabling the equipment to play an automatic protection role. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the utility model from a first viewing angle;

[0020] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the utility model from a second viewing angle;

[0021] Figure 3 It is a three-dimensional schematic diagram of the first partial structure of the utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of the second partial structure of the utility model.

[0023] In the figure: 1. hoist housing; 101. movable slot; 2. sprocket; 3. chain; 4. discharge hopper; 5. feed hopper; 6. material transport box; 7. anti-blocking mechanism; 701. material scale; 702. weighing sensor; 703. material receiving box; 8. perspective window; 9. driving mechanism; 901. mounting plate; 9011. guide rail; 902. machine base; 903. driving motor; 904. connecting rod; 905. first bearing; 906 , first pulley; 907, second pulley; 908, belt; 909, slider; 10, first tensioning mechanism; 1001, first bearing plate; 1002, first electric push rod; 1003, first pressure sensor; 11, support leg; 12, second tensioning mechanism; 1201, second bearing plate; 1202, second electric push rod; 1203, second pressure sensor; 1204, moving block; 1205, second bearing. DETAILED DESCRIPTION

[0024] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0025] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 4 As shown, a Z-type elevator drive device with a continuous tensioning mechanism provided by an embodiment of the utility model includes an elevator housing 1, movable grooves 101 are opened on both sides of the lower end of the elevator housing 1, multiple groups of sprockets 2 are arranged in the elevator housing 1, and the multiple groups of sprockets 2 are distributed along the running track of the elevator housing 1, and several sprockets 2 on the same side are connected by a chain 3 for transmission, and several material transport boxes 6 are rotatably connected between the two sprockets 2. A discharge hopper 4 and a feed hopper 5 are fixedly installed at the upper and lower ends of the elevator housing 1 respectively, and the feed hopper 5 is located directly above the material transport box 6. An anti-blocking mechanism 7 is arranged in the elevator housing 1 below the material transport box 6, and a driving mechanism 9 is fixedly installed on one side of the upper end of the elevator housing 1, a first tensioning mechanism 10 is arranged on the driving mechanism 9, and a second tensioning mechanism 12 is arranged at the lower end of the elevator housing 1.

[0027] Furthermore, a support leg 11 is fixedly installed at the lower end of the elevator housing 1, and a perspective window 8 is provided on one side of the lower end of the elevator housing 1. The perspective window 8 is provided corresponding to the anti-blocking mechanism 7, and a cover is rotatably installed on the elevator housing 1 corresponding to the perspective window 8.

[0028] In the present application, the setting of the perspective window 8 facilitates the observation of the amount of material in the docking box 703, avoiding the failure of the weighing sensor 702 and the inability to weigh the material in the docking box 703 in time, causing blockage in the Z-type elevator, thereby affecting the material transportation efficiency.

[0029] Furthermore, the anti-blocking mechanism 7 includes a material scale 701, which is fixedly installed in the elevator housing 1. A weighing sensor 702 is fixedly installed at the rear end of the material scale 701. A material receiving box 703 is placed on the material scale 701. The material receiving box 703 is located below the material transport box 6 and corresponds to the position of the perspective window 8.

[0030] In the present application, the material scale 701 and the weighing sensor 702 are provided to facilitate weighing the material in the docking box 703. When the docking box 703 is full of material, the weighing sensor 702 sends a signal to notify the personnel to clean the material in the docking box 703.

[0031] Furthermore, the driving mechanism 9 includes a mounting plate 901, which is fixedly mounted on one side of the upper end of the elevator housing 1. A guide rail 9011 is provided on the upper surface of the end of the mounting plate 901 away from the elevator housing 1, and a slider 909 is slidably connected in the guide rail 9011.

[0032] In the present application, the setting of the guide rail 9011 and the slider 909 facilitates the forward and backward sliding of the drive motor 903, thereby driving the second pulley 907 fixedly connected to the drive motor 903 to move, so as to ensure that the sprocket 2 is in a tensioned state and maintain the normal operation of the Z-type elevator.

[0033] Furthermore, a base 902 is fixedly installed on the upper surface of the slider 909, and a driving motor 903 is fixedly installed on the base 902. The output shaft of the driving motor 903 is fixedly connected to a second pulley 907, and one side of the second pulley 907 is rotatably installed on the mounting plate 901. A connecting rod 904 is fixedly connected to the outer wall of the upper end of the elevator housing 1, and the inner end of the connecting rod 904 is fixedly connected to the sprocket 2 located at the outermost end. A first bearing 905 is fixedly sleeved on the outer side of the connecting rod 904, and the first bearing 905 is fixedly installed on the elevator housing 1. The outer end of the connecting rod 904 is fixedly connected to a first pulley 906, and the first pulley 906 is connected to the second pulley 907 through a belt 908.

[0034] In the present application, a driving motor 903 is provided to drive the second pulley 907 to rotate, and under the transmission of the belt 908, the first pulley 906 is driven to rotate, and the rotation of the first pulley 906 is realized, thereby realizing the rotation of the sprocket 2, and finally realizing the operation of the Z-type elevator. Since the number of effective driving contact teeth of the sprocket 2 and the chain 3 of the traditional Z-type elevator is one-fourth of the number of teeth of the sprocket 2, when the number of contact teeth is small, the load will be concentrated on a few teeth, thereby increasing the pressure on these teeth, and the friction force will increase accordingly, thereby aggravating the wear of the sprocket 2 and the chain 3. Therefore, in this Z-type elevator, the number of contact teeth of the sprocket 2 and the chain 3 reaches one-half of the sprocket 2 gear, which conforms to the normal mechanical transmission principle and improves the service life of the sprocket 2 and the chain 3 in the Z-type elevator.

[0035] Furthermore, the first tensioning mechanism 10 includes a first bearing plate 1001, which is fixedly mounted on the mounting plate 901, on which a first electric push rod 1002 is fixedly mounted, and an output end of the first electric push rod 1002 is fixedly connected to a first pressure sensor 1003, which is fixedly connected to one side of the base 902.

[0036] In the present application, when the Z-type hoist is in use, the first pressure sensor 1003 is driven by the first electric push rod 1002 to move in a direction away from the Z-type hoist, and the movement of the first pressure sensor 1003 synchronously drives the movement of the drive motor 903, thereby driving the movement of the second pulley 907, thereby achieving the effect of tensioning the belt 908. After the tensioning force is adjusted, the Z-type hoist sprocket 2 and the chain 3 are kept in a tensioned state to ensure the normal operation of the hoist. By setting the first tensioning mechanism 10, the sprocket 2 and the chain 3 can be kept in a tensioned state at all times to ensure the normal operation of the elevator. In this case, the drive motor 903 is used to drive the first pulley 906 to rotate, and then drive the sprocket 2 to rotate. When the elevator fails, such as the sprocket 2 and the chain 3 are stuck or the elevator material box 6 is turned abnormally and causes the elevator to be stuck, when the force required by the drive motor 903 is greater than the normal operating force, the first electric push rod 1002 will drive the drive motor 903 to slide in the direction close to the elevator, causing the drive mechanism 9 to slip, which plays a role of automatic protection, thereby avoiding damage to the equipment.

[0037] Furthermore, the second tensioning mechanism 12 includes two second bearing plates 1201, which are respectively fixedly mounted on both sides of the lower end of the hoist casing 1, and a second electric push rod 1202 is fixedly mounted on each second bearing plate 1201. The output end of each second electric push rod 1202 is fixedly connected to a second pressure sensor 1203, and one side of each second pressure sensor 1203 is fixedly connected to a moving block 1204. A second bearing 1205 is fixedly sleeved in each moving block 1204, and the two second bearings 1205 are respectively fixedly sleeved on both ends of the rotating shaft of the lower sprocket 2.

[0038] In the present application, two second electric push rods 1202 are synchronously set to drive the two second pressure sensors 1203 to move forward, thereby driving the two second bearings 1205 to move. Through the movement of the two second bearings 1205, the rotating shaft fixed therein is synchronously driven to move, thereby driving the sprockets 2 at both ends of the rotating shaft to move, and finally achieving the purpose of tightening the chain 3, thereby ensuring the normal operation of the equipment.

[0039] The working principle of this utility model:

[0040] When in use, first start the first electric push rod 1002 and the two second electric push rods 1202 at the same time. At this time, the first electric push rod 1002 drives the first pressure sensor 1003 to move in the direction away from the Z-type elevator. The movement of the first pressure sensor 1003 synchronously drives the movement of the drive motor 903, and then drives the movement of the second pulley 907, thereby achieving the effect of tensioning the belt 908. Under the drive of the two second electric push rods 1202, the two sprocket wheels 2 on the outermost rotating shaft at the lower end of the elevator housing 1 move, and finally achieve the purpose of tightening the chain 3. When the tensioning force is adjusted, it drives the motor 903 to make the elevator operate normally, and then pours the material into the feed hopper 5, and then the material enters a plurality of material transport boxes 6. Under the drive of the elevator, the material is transported to the top of the elevator and finally falls from the discharge hopper 4;

[0041] During transportation, in order to prevent splashing or flying materials from falling into the elevator and causing the elevator to jam, the material receiving box 703 can collect the materials through the setting of the anti-blocking mechanism 7. Once the material is full of the receiving box 703 and it is detected, the weighing sensor 702 will send a signal, prompting the elevator and the buzzer to jointly alarm, so as to prompt the operator to clean up as soon as possible, thereby ensuring the smooth operation of the elevator;

[0042] When the sprocket 2 and chain 3 in the elevator are stuck or the material transport box 6 flips abnormally and causes the elevator to get stuck, the force required to drive the motor 903 is greater than the normal operating force. The two second pressure sensors 1203 both detect pressure changes. At this time, the control device controls the start of the two second electric push rods 1202 to drive the sprocket 2 to move back, causing the drive mechanism 9 to slip, which plays an automatic protection role to avoid damage to the equipment.

[0043] To sum up: this Z-type elevator drive device with a continuous tensioning mechanism, through the number of contact teeth between the sprocket 2 and the chain 3 reaches one-half of the sprocket 2 gear, conforms to the normal mechanical transmission principle, and improves the service life of the sprocket 2 and the chain 3 in the Z-type elevator; the drive motor 903 is used to drive the first pulley 906 to rotate, and then drives the sprocket 2 to rotate. When the elevator fails, such as the sprocket 2 and the chain 3 are stuck or the elevator material box 6 is turned abnormally and causes the elevator to be stuck, at this time when the force required by the drive motor 903 is greater than the normal operating force, the first electric push rod 1002 will drive the drive motor 903 to slide in the direction close to the elevator, causing the drive mechanism 9 to slip, which plays a role of automatic protection, thereby avoiding damage to the equipment.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Z-type hoist drive device with a continuous tensioning mechanism, comprising a hoist housing (1), characterized in that: Both sides of the lower end of the elevator housing (1) are provided with movable grooves (101), and a plurality of groups of sprockets (2) are arranged in the elevator housing (1). The plurality of groups of sprockets (2) are arranged along the running track of the elevator housing (1), and a plurality of sprockets (2) on the same side are connected by a chain (3) for transmission, and a plurality of material transport boxes (6) are rotatably connected between two sprockets (2). A discharge hopper (4) and a feed hopper (5) are respectively fixedly installed at the upper and lower ends of the elevator housing (1), and the feed hopper (5) is located directly above the material transport box (6). An anti-blocking mechanism (7) is arranged in the elevator housing (1) below the material transport box (6), and a driving mechanism (9) is fixedly installed on one side of the upper end of the elevator housing (1). A first tensioning mechanism (10) is arranged on the driving mechanism (9), and a second tensioning mechanism (12) is arranged at the lower end of the elevator housing (1).

2. A Z-type hoist drive device with a continuous tensioning mechanism as claimed in claim 1, characterized in that: A support leg (11) is fixedly mounted on the lower end of the elevator housing (1), a perspective window (8) is arranged on one side of the lower end of the elevator housing (1), the perspective window (8) is arranged corresponding to the anti-blocking material mechanism (7), and a cover is rotatably mounted on the elevator housing (1) corresponding to the perspective window (8).

3. A Z-type hoist drive device with a continuous tensioning mechanism as claimed in claim 2, characterized in that: The anti-blocking mechanism (7) comprises a material scale (701), the material scale (701) is fixedly mounted in the elevator housing (1), a weighing sensor (702) is fixedly mounted at the rear end of the material scale (701), a material receiving box (703) is placed on the material scale (701), and the material receiving box (703) is located below the material transport box (6) and corresponds to the position of the perspective window (8).

4. A Z-type hoist drive device with a continuous tensioning mechanism as claimed in claim 1, characterized in that: The driving mechanism (9) comprises a mounting plate (901), wherein the mounting plate (901) is fixedly mounted on one side of the upper end of the elevator housing (1), and a guide rail (9011) is provided on the upper surface of an end of the mounting plate (901) away from the elevator housing (1), wherein a slider (909) is slidably connected inside the guide rail (9011).

5. A Z-type hoist driving device with a continuous tensioning mechanism as claimed in claim 4, characterized in that: The upper surface of the slider (909) is fixedly mounted with a base (902), the base (902) is fixedly mounted with a drive motor (903), the output shaft of the drive motor (903) is fixedly connected with a second pulley (907), and one side of the second pulley (907) is rotatably mounted on the mounting plate (901).

6. A Z-type hoist driving device with a continuous tensioning mechanism as claimed in claim 5, characterized in that: A connecting rod (904) is fixedly connected to the outer wall of the upper end of the elevator housing (1); the inner end of the connecting rod (904) is fixedly connected to the sprocket (2) located at the outermost end; a first bearing (905) is provided on the outer fixed sleeve of the connecting rod (904); and the first bearing (905) is fixedly mounted on the elevator housing (1).

7. A Z-type hoist drive device with a continuous tensioning mechanism as claimed in claim 6, characterized in that: The outer end of the connecting rod (904) is fixedly connected to a first pulley (906), and the first pulley (906) is connected to the second pulley (907) via a belt (908).

8. A Z-type hoist driving device with a continuous tensioning mechanism as claimed in claim 4, characterized in that: The first tensioning mechanism (10) comprises a first bearing plate (1001), the first bearing plate (1001) being fixedly mounted on a mounting plate (901), a first electric push rod (1002) being fixedly mounted on the first bearing plate (1001), a first pressure sensor (1003) being fixedly connected to an output end of the first electric push rod (1002), and the first pressure sensor (1003) being fixedly connected to one side of the machine base (902).

9. A Z-type hoist driving device with a continuous tensioning mechanism as claimed in claim 1, characterized in that: The second tensioning mechanism (12) comprises two second bearing plates (1201), the two second bearing plates (1201) are respectively fixedly mounted on both sides of the lower end of the hoist casing (1), a second electric push rod (1202) is fixedly mounted on each of the second bearing plates (1201), the output end of each of the second electric push rods (1202) is fixedly connected to a second pressure sensor (1203), one side of each of the second pressure sensors (1203) is fixedly connected to a moving block (1204), each of the moving blocks (1204) is fixedly sleeved with a second bearing (1205), and the two second bearings (1205) are respectively fixedly sleeved on both ends of the rotating shaft of the lower sprocket (2).

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