Vibrating mechanism based on linkage of double-sided tooth synchronous belt

Abstract

The utility model relates to the field of vibrating tables, in particular to a vibrating mechanism based on linkage of a double-sided tooth synchronous belt, which is structurally characterized in that an eccentric block and transmission wheels are arranged on a shaft body of a driving motor of a vibrating part, the transmission wheels are connected through a synchronous belt, and outer teeth are arranged on the surfaces of the two sides, attached to the transmission wheels, of the synchronous belt. According to the improved device, the rotating angle of the transmission wheel is limited through the double-face transmission synchronous belt, the eccentric blocks are thrown oppositely at the same angle, only up-and-down exciting force is generated to counteract left-and-right exciting force, and therefore the vibrating table only conducts vibrating work in the up-and-down direction, and manufactured cement products are firmer and more compact. The equipment is more stable in the operation process, in order to conveniently adjust the gear clearance of the synchronous belt and the angle of the eccentric block, a transmission wheel of the driving motor is of a tensioning sleeve structure, the tensioning sleeve is loosened when the synchronous belt is adjusted and assembled, and the eccentric block droops under the gravity to make the orientation consistent.

Description

Technical Field

[0001] The utility model relates to a vibrating table, in particular to a vibration mechanism based on double-sided toothed synchronous belt linkage. Background Technique

[0002] The vibrating table of the brick machine generates mechanical vibration by the rotation of the motor-driven eccentric block, and these vibrations are transmitted to the concrete or brick blank through the vibrating table board. This vibration causes the particles in the concrete or brick blank to rearrange, fill the voids, reduce the air bubbles, thereby increasing its density and strength.

[0003] The existing vibration mechanism is driven by an external motor with a V-belt to the vibration box at the bottom. The eccentric shafts inside the vibration box achieve synchronous reverse movement through gear transmission. In this structure, the V-belt slips and wears very quickly and needs to be replaced frequently. Moreover, the gears in the vibration box need lubrication and maintenance, and the mechanical oil needs to be replaced frequently. The bearings and gears are all inside the vibration box, and the gear iron filings will enter the bearings, and the bearings are prone to damage. It often needs to be disassembled for maintenance, which is time-consuming and laborious and delays the equipment production.

[0004] Therefore, the purpose of this case is to provide a vibration mechanism based on double-sided toothed synchronous belt linkage to improve the working efficiency of the equipment and reduce the wear of parts. Content of the Utility Model

[0005] The utility model provides a vibration mechanism based on double-sided toothed synchronous belt linkage, which can effectively solve the above problems.

[0006] The utility model is realized as follows:

[0007] A vibration mechanism based on double-sided toothed synchronous belt linkage, its structure includes: a vibrating table, the vibrating table is fixedly connected with a vibrating part, a base is further installed at the bottom of the vibrating table, a buffer sleeve is arranged at the relative position between the vibrating table and the base, and a rubber block is arranged between the buffer sleeves for connection. The vibrating part includes two or more driving motors fixedly arranged in parallel at the bottom of the tabletop of the vibrating table. The driving motor shaft of the vibrating part is provided with an eccentric block and a transmission wheel, and the transmission wheels are connected by a synchronous belt. The two side surfaces of the synchronous belt in contact with the transmission wheel are provided with external teeth, which are meshed with the internal teeth of the transmission wheel. The detection frame of the vibrating part is installed on the bottom surface of the tabletop and is in contact with the synchronous belt. Tensioning wheels for controlling the synchronous belt are further installed on both sides of the synchronous belt, and the tensioning wheels are connected with the support frame at the bottom of the tabletop.

[0008] As a further improvement, the inner groove of the eccentric block and the surface of the rod body of the driving motor are smooth surfaces, and the two are nested and limited by extrusion force.

[0009] As a further improvement, the synchronous belt meshes and drives with the transmission wheel, and the adjacent transmission wheels are respectively in contact with the inner surface and the outer surface of the synchronous belt.

[0010] As a further improvement, the detection frame includes a limit frame installed at the bottom of the table top, an adjusting screw is provided in the slot hole on the side of the limit frame, the adjusting screw is connected to the adjusting motor installed at the bottom of the limit frame, the adjusting motor is nested with the connecting seat through the adjusting screw, and a detection ring is installed in the middle of the connecting seat, the thread of the detection ring is meshed with the external thread of the adjusting screw, a slide plate is installed on the surface of the connecting seat, and a limit rod and a synchronous gear are installed on the surface of the slide plate, and the synchronous belt is located between the synchronous gear and the limit rod.

[0011] As a further improvement, an inner groove is provided on the surface of the limit frame, and the adjusting screw drives the detection ring to drive the slide plate to move the synchronous gear to the top so that the synchronous gear and the inner groove are nested with each other.

[0012] As a further improvement, the detection ring and the inner groove of the connecting seat move up and down, and pressure sensors are respectively attached to the surfaces opposite to the connecting seat.

[0013] As a further improvement, the synchronous gear is installed on the top of the limiting rod, and the surface of the synchronous gear is provided with external teeth that mesh with the external teeth of the synchronous belt.

[0014] As a further improvement, the eccentric block is mounted on the shaft of the driving motor, and the orientation of the eccentric block is consistent through the cooperation of a synchronous belt.

[0015] As a further improvement, a spring is provided inside the detection frame to control the moving stroke.

[0016] The beneficial effect of the utility model is that the improved device limits the rotation angle of the transmission wheel through the double-sided transmission synchronous belt, so that the eccentric block swings at the same angle, and only generates the exciting force in the up-down direction to offset the exciting force in the left-right direction. Therefore, the vibration table only performs the work of vibration in the up-down direction, and the cement products made are stronger, and the equipment is more stable during operation. In order to facilitate the adjustment of the gear gap of the synchronous belt and the angle of the eccentric block, the transmission wheel of the driving motor adopts a tensioning sleeve structure. When adjusting and assembling the synchronous belt, the tensioning sleeve is loosened, and the eccentric block droops under gravity to make the direction consistent. Then the synchronous belt is tightened through the tensioning wheel, and then the tensioning sleeve structure is used, thereby improving the installation accuracy of the transmission wheel. In addition, due to the compact structure and the use of a softer synchronous belt drive, the noise and wear between parts are greatly reduced.

[0017] By setting up a detection frame to detect the synchronous belt, the detection ring inside the connecting seat can not only reduce the vibration of the synchronous belt during operation and detect it in real time, but also adjust the motor to drive the synchronous gear to press the synchronous belt down again when the pressure decreases and the clearance increases, thereby increasing the tensioning range and giving maintenance personnel time to perform maintenance, avoiding equipment downtime affecting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a vibration mechanism based on a double-sided tooth synchronous belt linkage of the present utility model.

[0020] Figure 2 It is a three-dimensional schematic structural diagram of the vibration part of the present utility model.

[0021] Figure 3 It is an exploded structural schematic diagram of the detection frame of the present utility model.

[0022] Figure 4 It is a schematic structural diagram of the detection frame of the present utility model.

[0023] The reference numerals are as follows:

[0024] 1. Vibration table; 2. Vibration part; 3. Buffer sleeve; 4. Rubber block; 5. Base;

[0025] 11. Tabletop; 12. Support frame;

[0026] 21. Driving motor; 22. Eccentric block; 23. Transmission wheel; 24. Synchronous belt; 25. Tensioning wheel; 26. Detection frame;

[0027] 261. Limiting frame; 262. Inner groove; 263. Adjusting screw; 264. Connecting seat; 265. Detection ring; 266. Adjusting motor; 267. Slide plate; 268. Limiting rod; 269. Synchronous gear. Specific embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0029] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0030] The existing vibration mechanism is driven by an external motor through a V-belt to the vibration box at the bottom. The eccentric shafts inside the vibration box achieve synchronous reverse through gear transmission. In this structure, the V-belt slips and wears very quickly and needs to be replaced frequently. Moreover, the gears in the vibration box need lubrication and maintenance, and the mechanical oil needs to be replaced frequently. The bearings and gears are both inside the vibration box, and gear iron filings will enter the bearings, making the bearings prone to damage. It often needs to be disassembled for maintenance, which is time-consuming and laborious and delays equipment production. Therefore, to solve the above problems, the following technical solutions are proposed in this case:

[0031] Refer to Figures 1 to 4 As shown, a vibration mechanism based on double-sided tooth synchronous belt linkage includes: a vibration table 1, the vibration table 1 is fixedly connected to a vibration part 2, a base 5 is further installed at the bottom of the vibration table 1, buffer sleeves 3 are provided at the relative positions of the vibration table 1 and the base 5, and rubber blocks 4 are provided between the buffer sleeves 3 for connection. The vibration part 2 includes two or more parallelly fixed at the bottom of the table surface 11 of the vibration table 1. The shaft body of the drive motor 21 of the vibration part 2 is provided with an eccentric block 22 and a transmission wheel 23, and the transmission wheels 23 are connected by a synchronous belt 24. Outer teeth are provided on both side surfaces of the synchronous belt 24 that are in contact with the transmission wheels 23 and are meshed with the inner teeth of the transmission wheels 23. The detection frame 26 of the vibration part 2 is installed on the bottom surface of the table surface 11 and is in contact with the synchronous belt 24. Tension wheels 25 for controlling the synchronous belt 24 are further installed on both sides of the synchronous belt 24, and the tension wheels 25 are connected to the support frame 12 at the bottom of the table surface 11.

[0032] The main structure of this device includes a vibration table 1. A vibration part 2 that generates vibration is installed at the bottom of the vibration table 1. The bottom of the vibration table 1 is connected to the rubber block 4 and the base 5 through the buffer sleeve 3 to reduce the vibration transmitted from the vibration part 2 to the equipment frame when mechanical vibration is generated.

[0033] A support frame 12 is provided at the bottom of the table surface 11 of the vibration part 2. The support frame 12 is used to support the tension wheels 25 for tensioning installed on both sides of the synchronous belt 24. The synchronous belt 24 is wound around the transmission wheels 23 on the surface of the drive motor 21 in an S shape. Since the synchronous belt 24 adopts a double-sided belt structure, the eccentric block 22 on the main shaft of the drive motor 21 can be kept facing the same angle. The number of motors provided is a multiple of the vibration part 2, which can balance the vibration force and make the swing more linear, reducing the loss of the equipment.

[0034] The double-sided belt is used for S-shaped winding to make the eccentric block 22 in the same direction. When rotating, the motor turns forward and backward. The symmetrical rotation method makes the overall structure generate vibration force while reducing the damage of parts caused by disordered vibration force due to the balance of force.

[0035] When the synchronous belt 24 is working for a long time, it is inevitable that it will be extended due to frictional heat generation and material fatigue. When it exceeds the tensioning range of the tensioning wheel 25, it is easy to fall off and cause damage.

[0036] In this regard, the present application is further optimized by setting a detection frame 26. The limit frame 261 of the detection frame 26 is fixed at the bottom of the table 11 and cooperates with the synchronous belt 24. The synchronous belt 24 passes between the limit rod 268 and the synchronous gear 269 at the front end of the slide plate 267. The limit rod 268 adopts a light rod structure. There is a gap between the limit rod 268 and the synchronous belt 24 during operation. The synchronous gear 269 at the top is connected to the synchronous belt 24 and rotates synchronously. The movement stroke between the limit rod 268 and the synchronous gear 269 is driven by the adjusting motor 266 to rotate the adjusting screw 263 to move the connecting seat 264 and then drive the slide plate 267 to perform linkage. The displacement stroke can be better controlled by adjusting the screw 263 to perform further tensioning.

[0037] In order to detect the working status of the synchronous belt 24 in time, a movable detection ring 265 is arranged in the middle of the connecting seat 264, and the detection ring 265 cooperates with the connecting seat 264. There is a clearance between the detection ring 265 and the connecting seat 264. When the synchronous gear 269 contacts the synchronous belt 24, the synchronous belt 24 lifts the synchronous gear 269 upward, thereby changing the signal of the pressure sensor of the detection ring 265. When it is at the set threshold but the pressure is reduced, the abnormality can be detected. The surface of the limit frame 261 is also provided with an inner groove 262, which can enable the synchronous gear 269 to be nested to increase the detection stroke.

[0038] The specific detection method is as follows: after the synchronous belt 24 is installed, the adjusting motor 266 drives the adjusting screw 263 to move the slide plate 267, and the synchronous gear 269 presses down the synchronous belt 24. At this time, the pressure of the detection ring 265 increases, and when it reaches the set threshold, the adjusting motor 266 stops working.

[0039] In daily use, the operation of the synchronous belt 24 will have certain fluctuations. When the detection ring 265 detects that the fluctuation is within a normal level, no alarm is generated. When the fluctuation is too severe, the system slows down the drive motor 21 until it stops.

[0040] The detection ring 265 determines whether the pressure clearance between the current synchronous gear 269 and the synchronous belt 24 is large. Once the pressure is too small, the adjusting motor 266 drives the adjusting screw 263 to make the synchronous gear 269 press against the synchronous belt 24 again, and gives the management personnel a signal to prepare for maintenance. Similarly, when the position of the adjusting motor 266 reaches the threshold, it is necessary to stop working and replace parts in order to achieve better working conditions.

[0041] During the vibration forming process of cement products on the vibration table, only the exciting force in the up and down directions is required, and there cannot be the exciting and whole vibration force in the left and right directions, because the vibration force in the up and down directions can make the cement products dense, while the vibration force in the left and right directions will vibrate cracks in the cement products.

[0042] The improved device limits the rotation angle of the driving wheel 23 through the double-sided transmission synchronous belt 24, so that the eccentric block 22 swings in the opposite direction at the same angle, only generating the vertical exciting force to offset the horizontal exciting force. As a result, the vibration table only performs the work of vertical vibration, making the cement products stronger and the equipment more stable during operation.

[0043] In order to facilitate the adjustment of the gear clearance of the synchronous belt 24 and the angle of the eccentric block 22, the transmission wheel 23 of the driving motor 21 adopts a tension sleeve structure. When adjusting and assembling the synchronous belt 24, the tension sleeve is loosened, and the eccentric block 22 sags under gravity to make the direction consistent. Then the synchronous belt is tightened by the tensioning wheel 25, and then the tension sleeve structure is tightened, thereby improving the installation accuracy of the transmission wheel 23.

[0044] The detection frame 26 is set to detect the synchronous belt 24. The detection ring 265 inside the connecting seat 264 can not only reduce the jumping of the synchronous belt 24 during operation and detect it in real time, but also adjust the motor 266 to drive the synchronous gear 269 to press the synchronous belt 24 down again when the pressure decreases and the clearance increases, thereby increasing the tensioning range and giving maintenance personnel time to perform maintenance, thereby avoiding equipment downtime affecting production.

[0045] The above only describes the basic principles and preferred implementations of the present utility model. Those skilled in the art can make many changes and improvements based on the above description, and these changes and improvements should fall within the protection scope of the present utility model.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vibration mechanism based on double-sided toothed synchronous belt linkage, the structure of which includes: A vibration table (1), wherein the vibration table (1) is fixedly connected to a vibration part (2), a base (5) is also installed at the bottom of the vibration table (1), a buffer sleeve (3) is provided at a relative position between the vibration table (1) and the base (5), and a rubber block (4) is provided between the buffer sleeves (3) for connection, characterized in that: The vibration part (2) comprises two or more driving motors (21) fixed in parallel to the bottom of the table top (11) of the vibration table (1); the shaft of the driving motor (21) of the vibration part (2) is provided with an eccentric block (22) and a transmission wheel (23); and the transmission wheels (23) are connected by a synchronous belt (24); the surfaces of the synchronous belt (24) and the transmission wheel (23) on both sides thereof are provided with external teeth, which mesh with the internal teeth of the transmission wheel (23); the detection frame (26) of the vibration part (2) is installed on the bottom surface of the table top (11) and is in contact with the synchronous belt (24); and tensioning wheels (25) for controlling the synchronous belt (24) are also installed on both sides of the synchronous belt (24); the tensioning wheels (25) are connected to the support frame (12) at the bottom of the table top (11).

2. A vibration mechanism based on double-sided toothed synchronous belt linkage as claimed in claim 1, characterized in that: The inner groove of the eccentric block (22) and the rod body surface of the driving motor (21) are smooth surfaces, and the two are nested and limited by extrusion force.

3. A vibration mechanism based on double-sided toothed synchronous belt linkage as claimed in claim 1, characterized in that: The synchronous belt (24) is meshed with the transmission wheel (23) for transmission, and adjacent transmission wheels (23) are in contact with the inner surface and the outer surface of the synchronous belt (24) respectively.

4. A vibration mechanism based on double-sided toothed synchronous belt linkage as claimed in claim 1, characterized in that: The detection frame (26) comprises a limit frame (261) installed at the bottom of the table (11), an adjusting screw (263) is provided in a slot hole on the side of the limit frame (261), the adjusting screw (263) is connected to an adjusting motor (266) installed at the bottom of the limit frame (261), the adjusting motor (266) is nested with a connecting seat (264) through the adjusting screw (263), and a detection ring (265) is installed in the middle of the connecting seat (264), the thread of the detection ring (265) and the external thread of the adjusting screw (263) are meshed with each other, a slide plate (267) is installed on the surface of the connecting seat (264), and a limit rod (268) and a synchronous gear (269) are installed on the surface of the slide plate (267), and the synchronous belt (24) is located between the synchronous gear (269) and the limit rod (268).

5. A vibration mechanism based on double-sided toothed synchronous belt linkage as claimed in claim 4, characterized in that: An inner groove (262) is provided on the surface of the limit frame (261), and the adjusting screw (263) drives the detection ring (265) to drive the slide plate (267) to move the synchronous gear (269) to the top so that the synchronous gear (269) and the inner groove (262) are mutually nested.

6. A vibration mechanism based on double-sided toothed synchronous belt linkage as claimed in claim 5, characterized in that: The detection ring (265) moves up and down with the inner groove of the connection seat (264), and pressure sensors are respectively attached to the surfaces opposite to the connection seat (264).

7. A vibration mechanism based on double-sided toothed synchronous belt linkage as claimed in claim 5, characterized in that: The synchronous gear (269) is mounted on the top of the limiting rod (268), and the surface of the synchronous gear (269) is provided with external teeth that mesh with the external teeth of the synchronous belt (24).

8. A vibration mechanism based on double-sided toothed synchronous belt linkage as claimed in claim 1, characterized in that: The eccentric block (22) is mounted on the shaft of the driving motor (21) and is coordinated with a synchronous belt (24) so ​​that the orientation of the eccentric block (22) is consistent.

9. A vibration mechanism based on double-sided toothed synchronous belt linkage as claimed in claim 1, characterized in that: A spring is arranged inside the detection frame (26) to control the movement stroke.

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