Chain wheel tensioning device of elevator

Abstract

The utility model discloses a chain wheel tensioning device of an elevator, relates to the technical field of elevator tensioning devices, and aims to solve the problems that when equipment is restarted, the load is too large, the equipment can not be normally started, a chain wheel is generally manually adjusted, errors exist, and a shaft can be broken. The head section is connected to the upper portion of the lower section, a discharging port used for outputting materials is formed in the head section, a feeding port and a maintenance port are formed in the lower section, and the maintenance port is located below the discharging port; a driving rolling shaft is arranged on the head section and is controlled by a driving motor; a driven rolling shaft is arranged in the lower section, the driving rolling shaft is connected with the driven rolling shaft through a synchronous belt, and a plurality of groups of hoppers are arranged on the synchronous belt; tensioning devices used for adjusting the chain wheels are arranged on the two sides of the lower section, and the adjacent tensioning devices are connected through leveling mechanisms. A material plate used for assisting material cleaning is arranged below the synchronous belt, and the equipment can detect whether the tensioning devices on the two sides are horizontal or not after tensioning the chain wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator tensioning devices, in particular to a sprocket tensioning device for an elevator. Background Art

[0002] Existing material conveying equipment typically uses a transmission system consisting of rollers and synchronous belts to complete material conveying, which has a certain degree of automation. However, after the equipment is shut down, residual material often remains, resulting in excessive load when the equipment is restarted. This condition can easily cause wear of the transmission device and even prevent the equipment from starting normally, affecting the equipment's restart efficiency.

[0003] After long-term operation, the tightness of the synchronous belt and roller will change, and the staff needs to manually adjust the tensioning device. However, manual adjustment may have errors, resulting in uneven force on both ends of the roller, causing equipment wear or reduced transmission efficiency, and may even cause the roller to break.

[0004] Therefore, the present application provides a sprocket tensioning device for an elevator to meet the demand. Utility Model Content

[0005] The purpose of this application is to provide a sprocket tensioning device for an elevator, which aims to solve the problem that residual materials are often retained after the equipment is shut down, resulting in excessive load when the equipment is restarted. This situation can easily cause wear of the transmission device or even failure of the equipment to start normally, affecting the restart efficiency of the equipment. The staff needs to manually adjust the tensioning device, but manual adjustment may have errors, resulting in uneven force on both ends of the roller, thereby causing wear of the equipment or reduced transmission efficiency, and may even cause the roller to break.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a sprocket tensioning device for an elevator, comprising a head section and a lower section, the head section being connected above the lower section, the head section being provided with a discharge port for discharging materials, the lower section being provided with a feed port and a maintenance port, the maintenance port being located below the discharge port; an active roller is provided on the head section, and the active roller is controlled by a drive motor; a driven roller is provided in the lower section, and the active roller and the driven roller are connected by a synchronous belt, and a plurality of hoppers are provided on the synchronous belt; tensioning devices for adjusting the sprocket are provided on both sides of the lower section, and adjacent tensioning devices are connected by a leveling mechanism; a material plate for assisting in clearing the material is provided below the synchronous belt, and through the cooperation between the above-mentioned parts, the equipment can detect whether the tensioning devices on both sides are level after the sprocket is tensioned.

[0007] Preferably, a first locking block and a stopper are provided on the lower section, the first locking block is arranged on both sides of the maintenance port, the first locking blocks are connected by a stopper rod, a stopper is provided at the bottom of the maintenance port, and a baffle is sliding at the maintenance port, and the baffle is limited at the maintenance port by the baffle rod, making it easier to clean up residual materials in the equipment.

[0008] Preferably, the tensioning device also includes a screw rod, a return spring and a sliding plate. The two ends of the driven roller are installed on the sliding plate. A sliding groove for the driven roller to slide up and down is opened on the lower section. The sliding plate is engaged with the screw rod through the mounting block. The screw rod is installed on the lower section through the fixed plate. The return spring is mounted on the screw rod, so that the equipment can tension the sprocket.

[0009] Preferably, the leveling mechanism also includes connecting rods and horizontal rods. There are multiple groups of connecting rods. The connecting rods are provided with waist-shaped holes for connecting to the driven rollers. Adjacent connecting rods are connected by horizontal rods. The lower section is also provided with a second locking block for placing the horizontal rod, so that the equipment can detect whether the tensioning devices are at the same height.

[0010] Preferably, a measuring block is further provided on the sliding plate, and the measuring block is used to support the connecting rod.

[0011] Preferably, the material plate also includes a shock-absorbing block and a support rod. The support rod is installed on the side wall of the lower section through a bearing seat. One end of the support rod passes through the side wall of the lower section and is connected to a rotating handwheel. The support rod is provided with two groups of threaded sections with opposite rotation directions. The support rod is engaged with a connecting block. There are multiple groups of connecting blocks. The connecting blocks are hinged with a linkage rod. Adjacent linkage rods are connected by a top plate. The linkage rod and the top plate are hinged. The bottom of the material plate is connected with a telescopic rod. The telescopic rod is installed on the inner bottom surface of the lower section. The shock-absorbing blocks are located on both sides of the support rod, so that when the staff cleans the materials, they can clean the materials deep in the equipment more conveniently and quickly.

[0012] Preferably, a mounting groove is provided in the shock-absorbing block, a support block slides in the mounting groove, and a shock-absorbing spring is provided between the support block and the shock-absorbing block.

[0013] In summary, the technical effects and advantages of the utility model are:

[0014] In the utility model, a material plate for auxiliary material cleaning is added under the driven roller, and a support structure with a shock-absorbing spring is provided, so that the material plate can move downward when too much material is added in a short period of time, avoiding the overload problem caused by material accumulation. At the same time, the material inside the equipment can be cleaned through the maintenance port, and the material plate can be lifted upward by the support rod and the top plate, so that the staff can clean the material at deep depth more conveniently, which significantly reduces the load on the equipment when restarting and extends its service life.

[0015] In the utility model, a leveling mechanism is added to the leveling device so that the heights of both ends of the roller can be measured, thereby avoiding the problem of uneven force on the roller due to different heights. This design ensures that the force on the roller is uniform, avoids broken shafts and unnecessary wear, thereby improving the transmission efficiency of the equipment, reducing maintenance requirements, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a side structural diagram of the present utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 4 This is an enlarged view of the material plate of the present utility model;

[0021] Figure 5 This is an enlarged structural diagram of the support rod of the utility model;

[0022] Figure 6 This is an enlarged view of the leveling mechanism of the present utility model.

[0023] In the figure: 1. head section; 2. lower section; 3. feed port; 4. discharge port; 5. drive motor; 6. active roller; 7. tensioning device; 8. maintenance port; 9. synchronous belt; 10. hopper; 11. driven roller; 12. leveling mechanism; 13. material plate; 71. screw rod; 72. return spring; 73. sliding plate; 74. fixed plate; 75. measuring block; 81. first locking block; 82. block; 83. baffle; 84. baffle rod; 121. connecting rod; 122. horizontal rod; 123. second locking block; 131. shock-absorbing block; 132. support rod; 133. rotating hand wheel; 134. support block; 136. connecting block; 137. linkage rod; 138. top plate; 139. telescopic rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0025] refer to Figure 1-6 The sprocket tensioning device of the elevator shown includes a head section 1 and a lower section 2. The head section 1 is installed above the lower section 2. The head section 1 is provided with a discharge port 4 for discharging materials. The lower section 2 is provided with a feed port 3 and a maintenance port 8 for maintenance. The maintenance port 8 is located directly below the discharge port 4, and an active roller 6 is provided in the head section 1. The active roller 6 is controlled by a drive motor 5. The active roller 6 is also connected to a driven roller 11 through a synchronous belt 9, so that while the active roller 6 rotates, the driven roller 11 can rotate synchronously. The driven roller 11 is arranged in the lower section 2, and tensioning devices 7 for adjusting the height of the driven roller 11 are also provided on both sides of the lower section 2, and the two adjacent tensioning devices 7 are connected by a leveling mechanism 12. In order to prevent the equipment from being overloaded due to material storage when restarting, a material plate 13 for assisting in clearing the material is also provided under the synchronous belt 9.

[0026] As an implementation method in this embodiment, the lower section 2 also includes a first locking block 81, a stopper 82 and a baffle 83. The first locking block 81 is provided in four groups and is evenly distributed on both sides of the maintenance port 8. The stopper 82 is set on the bottom edge of the maintenance port 8 to support the baffle 83. The first locking block 81 fixes the baffle 83 at the maintenance port 8 through the baffle rod 84, so that the maintenance port 8 is blocked when the equipment is working.

[0027] As an implementation method in this embodiment, in order to allow the equipment to work for a long time and the sprocket to be stretched, resulting in low operating efficiency, the tensioning device 7 also includes a screw rod 71, a return spring 72 and a sliding plate 73. The sliding plate 73 slides on the lower section 2. The lower section 2 is also provided with a fixed plate 74. The screw rod 71 is engaged in the fixed plate 74. The sliding plate 73 is engaged on the screw rod 71 through the mounting block, so that the staff can adjust the height of the sliding plate 73 by rotating the screw rod 71. A sliding groove for the driven roller 11 to slide up and down is provided on the lower section 2. The sliding plate 73 moves while driving the driven roller 11 to move synchronously. In order to avoid the adjustment of the tensioning devices 7 on both sides The different degrees of joints cause the driven roller 11 to tilt in the lower section 2, and the uneven force at both ends of the driven roller 11 causes the broken shaft problem. The leveling mechanism 12 also includes a connecting rod 121 and a horizontal rod 122. The lower section 2 is also provided with a second locking block 123 for placing the horizontal rod 122. There are two groups of connecting rods 121, and the two groups of connecting rods 121 are respectively hinged at both ends of the horizontal rod 122. The connecting rod 121 is also provided with a waist-shaped hole for connecting to the driven roller 11, and a measuring block 75 for supporting the connecting rod 121 is provided on the sliding plate 73, so that after the tensioning degree of the equipment sprocket is adjusted, the leveling mechanism 12 can be used to detect whether the two ends of the driven roller 11 are level.

[0028] As an implementation method in this embodiment, in order to avoid the problem of equipment overload caused by residual materials when the equipment is shut down and restarted, the material plate 13 also includes a shock-absorbing block 131 and a support rod 132. The support rod 132 is provided with two groups of threaded sections with opposite rotation directions. Two groups of connecting blocks 136 are engaged with the support rod 132. The connecting block 136 is hinged with a linkage rod 137. The support rod 132 is connected to the side wall of the lower section 2 through a bearing seat, and one end of the support rod 132 passes through the lower section 2 and is connected to the rotating handwheel 133. The two groups of linkage rods 137 are connected through a top plate 138, and the connection between the linkage rod 137 and the top plate 138 is hinged. The bottom of the top plate 138 is also provided with a telescopic rod 1 39. The telescopic rod 139 is fixed on the bottom surface of the lower section 2. The output end of the telescopic rod 139 is connected to the top plate 138, so that the staff can rotate the hand wheel 133 to rotate the support rod 132. The connecting block 136 on the support rod 132 moves toward or away from each other, driving the top plate 138 to move upward or downward, and the telescopic rod 139 is used to limit the moving direction of the top plate 138. The shock-absorbing block 131 is arranged on both sides of the support rod 132, and an installation groove is opened in the shock-absorbing block 131. The installation groove of the shock-absorbing block 131 is connected to the support block 134 through a shock-absorbing spring, so that when the equipment feeds too much material in a short time, the material will press the material plate 13 downward to prevent the material height from exceeding the synchronous belt 9.

[0029] The working principle of this utility model is as follows: when in use, the staff first observes whether there is any residual material on the material plate 13 from the last shutdown, then removes the baffle 84 on the first locking block 81, and then removes the horizontal rod 122 from the second locking block 123, and pulls the horizontal rod 122, which drives the connecting rod 121 to move, so that the connecting rod 121 moves on the driven roller 11 through the waist-shaped hole, and then the baffle 83 on the maintenance port 8 is taken out, and then the material on the material plate 13 is cleaned through the maintenance port 8. After cleaning, check whether the sprocket and synchronous belt 9 need to be tightened. If no adjustment is required, The horizontal rod 122, the baffle 84 and the baffle 83 can be reset. When the equipment is tensioned, the screw rod 71 in the tensioning device 7 is rotated to drive the sliding plate 73 to slide up and down on the lower section 2 through the connecting block 136. After adjusting to the required position, the horizontal rod 122 is taken out from the second locking block 123. By pulling the horizontal rod 122, the horizontal rod 122 drives the connecting rod 121 to move, so that the connecting rod 121 rotates around the driven roller 11 through the waist-shaped hole, so that the connecting rod 121 is placed on the measuring block 75. Then, the horizontal rod 1 on the connecting rod 121 is rotated. 22 detects whether the two ends of the driven roller 11 are flush, and then fixes the return spring 72 on the screw rod 71 by the locking nut, and locks the screw rod 71 on the fixing plate 74 by rotating the fixing nut, so that the two ends of the driven roller 11 are at the same horizontal height, avoiding the problem that the load on one end is larger due to the different heights of the two ends of the driven roller 11, resulting in faster wear of one end of the driven roller 11, and then rotates the hand wheel 133 to rotate the support rod 132, and the connecting block 136 on the support rod 132 moves toward or away from each other, and drives the top plate 138 to move to the left or right through the linkage rod 137. The height of the top plate 138 can be adjusted by moving it up or down to achieve the effect of limiting the minimum height of the material plate 13. Then, the driving motor 5 on the head section 1 can be turned on, and the driving motor 5 drives the active roller 6 to rotate. The active roller 6 drives the driven roller 11 to rotate through the synchronous belt 9, and the synchronous belt 9 drives the hopper 10 to move. The material is then put into the equipment through the feed port 3, and the hopper 10 on the synchronous belt 9 conveys the material to the discharge port 4. When excessive material is put in a short time, the material presses the material plate 13 downward under the action of gravity to prevent the material from covering the synchronous belt 9 and the driven roller 11.

[0030] The electromechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.

[0031] Components not described in detail herein are prior art.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sprocket tensioning device for an elevator, characterized in that: The invention comprises a head section (1) and a lower section (2), wherein the head section (1) is connected to the upper part of the lower section (2), the head section (1) is provided with a discharge port (4) for discharging materials, and the lower section (2) is provided with a feed port (3) and a maintenance port (8), and the maintenance port (8) is located below the discharge port (4); The head section (1) is provided with an active roller (6), and the active roller (6) is controlled by a drive motor (5); A driven roller (11) is provided in the lower section (2), the driving roller (6) and the driven roller (11) are connected via a synchronous belt (9), and a plurality of hoppers (10) are provided on the synchronous belt (9); Tensioning devices (7) for adjusting the sprocket are provided on both sides of the lower section (2), and adjacent tensioning devices (7) are connected via a leveling mechanism (12); A material plate (13) for assisting material clearing is provided below the synchronous belt (9).

2. The sprocket tensioning device for an elevator according to claim 1, characterized in that: The lower section (2) is provided with a first locking block (81) and a stopper (82), the first locking block (81) being arranged on both sides of the maintenance opening (8), the first locking blocks (81) being connected to each other via a stopper (84), a stopper (82) being provided at the bottom of the maintenance opening (8), a stopper (83) being slidably provided at the maintenance opening (8), and the stopper (83) being limited at the maintenance opening (8) by the stopper (84).

3. The sprocket tensioning device for an elevator according to claim 2, characterized in that: The tensioning device (7) further includes a screw rod (71), a return spring (72) and a sliding plate (73), both ends of the driven roller (11) are mounted on the sliding plate (73), a sliding groove for the driven roller (11) to slide up and down is provided on the lower section (2), the sliding plate (73) is engaged with the screw rod (71) through a mounting block, the screw rod (71) is mounted on the lower section (2) through a fixing plate (74), and the return spring (72) is sleeved on the screw rod (71).

4. The sprocket tensioning device for an elevator according to claim 3, characterized in that: The leveling mechanism (12) further comprises connecting rods (121) and horizontal rods (122). The connecting rods (121) are provided in multiple groups. The connecting rods (121) are provided with waist-shaped holes for connecting to the driven rollers (11). Adjacent connecting rods (121) are connected via the horizontal rods (122). The lower section (2) is further provided with a second locking block (123) for placing the horizontal rods (122).

5. The sprocket tensioning device for an elevator according to claim 4, characterized in that: A measuring block (75) is also provided on the sliding plate (73), and the measuring block (75) is used to support the connecting rod (121).

6. The sprocket tensioning device for an elevator according to claim 1, characterized in that: The material plate (13) further includes a shock absorbing block (131) and a support rod (132), wherein the support rod (132) is mounted on the side wall of the lower section (2) via a bearing seat, one end of the support rod (132) passes through the side wall of the lower section (2) and is connected to a rotating hand wheel (133), the support rod (132) is provided with two groups of threaded sections with opposite rotation directions, the support rod (132) is engaged with a connecting block (136), and the connecting block (136) is engaged with the connecting block (136). 36) is provided with multiple groups, the connecting block (136) is hinged with a linkage rod (137), adjacent linkage rods (137) are connected through a top plate (138), the linkage rod (137) and the top plate (138) are hinged, the bottom of the material plate (13) is connected with a telescopic rod (139), the telescopic rod (139) is installed on the inner bottom surface of the lower section (2), and the shock absorbing block (131) is located on both sides of the support rod (132).

7. The sprocket tensioning device for an elevator according to claim 6, characterized in that: A mounting groove is provided in the shock-absorbing block (131), a support block (134) slides in the mounting groove, and a shock-absorbing spring is provided between the support block (134) and the shock-absorbing block (131).

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