Eccentric block type vibration box

Abstract

The utility model discloses an eccentric block type vibration box, relates to the technical field of vibration boxes, and solves the problem that the vibration intensity of a vibration box in the prior art is inconvenient to adjust. The device comprises a box body, a plurality of driving shafts are rotatably arranged on the box body, a bearing plate capable of axially sliding along the driving shafts is arranged in the box body, an adjusting mechanism matched with the bearing plate is arranged on the box body, and the adjusting mechanism is used for adjusting the position of the bearing plate; a main eccentric block is fixedly arranged on the driving shaft, a sliding seat is fixedly arranged on the bearing plate, and a rotatable auxiliary eccentric block is arranged on the sliding seat; an inserting structure is arranged between the auxiliary eccentric block and the main eccentric block in a matched mode, and the auxiliary eccentric block and the main eccentric block can be combined and separated through the inserting structure. According to the device, the overall mass of the eccentric block loaded on the driving shaft can be flexibly adjusted without disassembly, the vibration intensity of the vibration box can be conveniently adjusted, and the downtime during adjustment is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration boxes, in particular to an eccentric block type vibration box. Background Art

[0002] The eccentric block vibrator is a vibration device based on the centrifugal force generated by the rotating eccentric block. Its working principle is to drive the eccentric block to rotate through the motor to generate periodic centrifugal force, thereby causing the vibration box to vibrate. Compared with other types of vibrators, the eccentric block vibrator directly uses rotation to generate centrifugal force, with higher energy conversion efficiency and lower energy consumption. In addition, due to its simple structure, low failure rate and low maintenance cost.

[0003] For example, the Chinese invention patent with publication number CN104416647A discloses a vibration box on a brick-making machine, which includes a box body and two parallel rotating shafts. The rotating shaft arranged in the box body rotates together with the box body wall through a bearing, and the gears fixedly connected to the two rotating shafts are meshed together. The gears on the two rotating shafts are arranged in the box body, and the box body is filled with lubricating oil. The box body and the rotating shaft are connected by a liquid sealing structure. Eccentric blocks are fixedly connected to the two rotating shafts. The right end of a rotating shaft arranged outside the box body is fixedly connected to a transmission wheel, and the eccentric block arranged outside the box body is fixedly connected to the left end of the rotating shaft arranged outside the box body. The eccentric block is fixedly connected to the rotating shaft through a spline. A protective cover is arranged outside the eccentric block.

[0004] This prior art is a conventional vibration box structure. In actual use, the vibration intensity of the vibration box needs to be adjusted by using eccentric blocks of different specifications, so as to flexibly adjust the vibration intensity. However, when replacing eccentric blocks of different specifications in the existing vibration box, the box body and the original eccentric blocks need to be disassembled before replacement. The replacement process is cumbersome, and the adjustment of the vibration intensity is inconvenient, resulting in a long equipment downtime. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned background technology, the utility model proposes an eccentric block type vibration box, which solves the problem of inconvenient adjustment of the vibration intensity of the vibration box in the prior art.

[0006] The technical solution of the utility model is achieved as follows: an eccentric block type vibration box, comprising a box body, a plurality of drive shafts are rotatably provided on the box body, a bearing plate which can slide axially along the drive shaft is provided in the box body, an adjusting mechanism cooperating with the bearing plate is provided on the box body, and the adjusting mechanism is used to adjust the position of the bearing plate; a main eccentric block is fixedly provided on the drive shaft, a sliding seat is fixedly provided on the bearing plate, and a rotatable secondary eccentric block is provided on the sliding seat; a plug-in structure is provided between the secondary eccentric block and the main eccentric block, and the secondary eccentric block and the main eccentric block can be combined and separated through the plug-in structure.

[0007] Preferably, a plurality of optical axes are fixedly provided in parallel in the box body, a plurality of linear bearings are fixedly provided on the bearing plate, and the linear bearings are slidably matched with the optical axes; and a plurality of openings are provided on the bearing plate for the driving shaft to pass through.

[0008] Preferably, the adjustment mechanism includes a screw rotatably arranged in the box body, a screw nut is fixedly provided on the bearing plate, and the screw nut cooperates with the screw transmission, the end of the screw is connected to a rotating shaft, the rotating shaft passes through the box body and a rotating handle is provided at the end.

[0009] Preferably, a sealing ring is provided between the rotating shaft and the box body. The sliding seat comprises a flange seat connected to the bearing plate, a sleeve seat is provided on one side of the flange seat, and the auxiliary eccentric block is rotatably provided on the sleeve seat.

[0010] Preferably, the auxiliary eccentric block and the main eccentric block both include an annular body, and a semi-annular body is arranged outside the annular body; the annular body of the main eccentric block is fixedly connected to the drive shaft, and the annular body of the auxiliary eccentric block is rotatably matched with the sleeve seat. The outer diameter of the semi-annular body of the auxiliary eccentric block is greater than or equal to the outer diameter of the semi-annular body of the main eccentric block.

[0011] Preferably, the plug-in structure comprises a tapered hole and a tapered pin respectively arranged between opposite surfaces of the auxiliary eccentric block and the main eccentric block, and the tapered hole and the tapered pin are plug-fitted with each other.

[0012] Preferably, the box body is provided with a cooling channel, and the inlet and outlet of the cooling channel are both provided on the outer wall of the box body. The end of the drive shaft is provided with a keyway.

[0013] The beneficial effects of the utility model are as follows: when it is necessary to change the vibration intensity, the auxiliary eccentric block and the main eccentric block, a total of two eccentric blocks, are combined into a whole or separated through the plug-in structure. In the combined state, the main eccentric block and the auxiliary eccentric block are combined into a whole and driven by the drive shaft. In the separated state, the drive shaft only drives the main eccentric block to rotate. By changing the mass of the eccentric block loaded on the drive shaft, the vibration intensity generated under the centrifugal rotation can be adjusted. Further, by setting a bearing plate and a slide seat, a rotating support foundation can be provided for the setting of the auxiliary eccentric block. The position of the bearing plate can be adjusted in conjunction with the adjustment mechanism, driving the auxiliary eccentric block to move and thus realize combination and separation with the main eccentric block. This device can flexibly adjust the overall mass of the eccentric block loaded by the drive shaft without disassembly, thereby realizing convenient adjustment of the vibration intensity of the vibration box and shortening the downtime during adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0016] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in a side view;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the utility model in a state of cooperation among the driving shaft, the main eccentric block, the auxiliary eccentric block and the sliding seat;

[0019] Figure 5 It is a three-dimensional structural diagram of the internal components of the box body of the utility model;

[0020] In the figure: 1: box body, 2: driving shaft, 3: bearing plate, 4: main eccentric block, 5: sliding seat, 6: secondary eccentric block, 11: optical axis, 12: linear bearing, 71: screw, 72: screw nut, 73: rotating shaft, 74: rotating handle, 51: flange seat, 52: sleeve seat, 81: ring body, 82: semi-ring body, 91: tapered hole, 92: tapered pin, 13: cooling channel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 , 2As shown, in Example 1, an eccentric block type vibration box comprises a box body 1, on which a plurality of drive shafts 2 are rotatably provided, a bearing plate 3 capable of sliding axially along the drive shaft 2 is provided inside the box body 1, and an adjustment mechanism cooperating with the bearing plate 3 is provided on the box body 1, and the adjustment mechanism is used to adjust the position of the bearing plate 3. A main eccentric block 4 is fixedly provided on the drive shaft 2, a slide seat 5 is fixedly provided on the bearing plate 3, and a rotatable secondary eccentric block 6 is provided on the slide seat 5, and a rotation support foundation can be provided for the setting of the secondary eccentric block through the bearing plate and the slide seat. A plug-in structure is provided between the secondary eccentric block 6 and the main eccentric block 4, and the secondary eccentric block 6 and the main eccentric block 4 can be combined and separated through the plug-in structure. When the vibration intensity needs to be changed, the position of the bearing plate can be adjusted through the adjustment mechanism to drive the secondary eccentric block to move, so that the secondary eccentric block and the main eccentric block can be combined into a whole or separated through the plug-in structure. In the combined state, the main eccentric block and the secondary eccentric block are combined into a whole and driven by the drive shaft. In the separated state, the drive shaft only drives the main eccentric block to rotate. By changing the mass of the eccentric block loaded on the drive shaft, the vibration intensity generated under the rotational centrifugal force can be adjusted.

[0023] As a further specific implementation, Figure 1 , 5 As shown, a plurality of optical axes 11 are fixedly arranged in parallel in the housing 1, and a plurality of linear bearings 12 are fixedly arranged on the bearing plate 3, and the linear bearings 12 slide in cooperation with the optical axes 11. In this embodiment, the optical axes are evenly distributed in the housing, and the axes are parallel to the axes of the drive shafts, thereby providing support for the bearing plate and satisfying its sliding. In addition, a plurality of openings are provided on the bearing plate 3 to satisfy the penetration of the drive shaft 2, and the slide seats correspond to the openings respectively.

[0024] As an optional solution, a main eccentric block and a secondary eccentric block can be correspondingly arranged on each driving shaft, and a set of adjustment mechanisms can be used to drive the bearing plate to move, so as to realize the selection and adjustment of two-level vibration intensity. In this embodiment, secondary eccentric blocks are arranged on both sides of the main eccentric block, and corresponding bearing plates are arranged on both sides, and two sets of adjustment mechanisms are arranged in cooperation, so that the positions of the secondary eccentric blocks on both sides are adjusted respectively by using the two sets of adjustment mechanisms. When it is necessary to adjust the vibration intensity, the secondary eccentric block on one side can be optionally combined or separated with the main eccentric block for adjustment, or the secondary eccentric blocks on both sides can be optionally combined or separated with the main eccentric block for adjustment, so as to realize the adjustment of vibration intensity, so as to realize the selection of three-level vibration intensity according to the demand.

[0025] The device can flexibly adjust the overall mass of the eccentric block loaded on the drive shaft without disassembly during adjustment, thereby realizing convenient adjustment of the vibration intensity of the vibration box and shortening the downtime during adjustment.

[0026] Embodiment 2, an eccentric block type vibration box, based on embodiment 1, as Figure 2 ,5 As shown, the adjustment mechanism includes a lead screw 71 that is rotatably arranged in the housing 1, a lead screw nut 72 is fixedly arranged on the bearing plate 3, and the lead screw nut 72 is coupled with the lead screw 71 through transmission, and a rotating shaft 73 is connected to the end of the lead screw 71, and the rotating shaft 73 passes through the housing 1 and a rotary handle 74 is arranged at the end. Specifically in this embodiment, a bearing seat is fixedly arranged on the top of the housing by bolts, and the two ends of the lead screw are respectively connected to the two bearing seats to realize rotation, and the axis of the lead screw is parallel to the axis of the optical axis, so that the bearing plate can be driven to move along the optical axis through the lead screw nut during the rotation of the lead screw. One end of the lead screw passes through the bearing seat, and a coupling is arranged at the end, which is coaxially connected to the rotating shaft through the coupling. The coupling adopts a conventional coupling. A through hole is arranged on the housing to meet the requirement of the rotating shaft passing through. When the position of the bearing plate needs to be adjusted, the rotary handle at the outer end of the rotating shaft is rotated to drive the lead screw to rotate, thereby driving the bearing plate to move.

[0027] Furthermore, a sealing ring is provided between the rotating shaft 73 and the box body 1 , and the sealing ring can be a conventional rubber sealing ring to achieve sealing between the rotating shaft and the box body.

[0028] Embodiment 3, an eccentric block type vibration box, based on embodiment 2, as Figure 4 , 5 As shown, the slide seat 5 includes a flange seat 51 connected to the bearing plate 3, a sleeve seat 52 is provided on one side of the flange seat 51, and the secondary eccentric block 6 is rotatably arranged on the sleeve seat 52. In this embodiment, the sleeve seat and the flange seat are integrally formed and coaxially arranged, and correspond to the openings on the bearing plate. The axes of the sleeve seat and the flange seat are coaxial with the axis of the drive shaft. The flange seat can be optionally connected to the bearing plate by welding or bolts to achieve fixation, forming a supporting base for the secondary eccentric block. In addition, a gap is left between the inner wall of the sleeve seat and the flange seat and the drive shaft to avoid affecting the rotation of the drive shaft.

[0029] In addition, the secondary eccentric block 6 and the main eccentric block 4 both include an annular body 81, and a semi-annular body 82 is provided outside the annular body 81. The annular body 81 of the main eccentric block 4 is fixedly connected to the drive shaft 2, and the annular body 81 of the secondary eccentric block 6 is rotatably matched with the sleeve seat 52. Specifically in this embodiment, a bearing is provided on the sleeve seat, the inner ring of the bearing is fixed to the sleeve seat, and the outer ring of the bearing is fixedly connected to the annular body of the secondary eccentric block, so that the secondary eccentric block can rotate relative to the sleeve seat under the action of the bearing.

[0030] As an optional solution, the annular body 81 of the main eccentric block 4 can be welded and fixed to the drive shaft, or keyways can be provided on the drive shaft and the annular body respectively, and keys can be provided in the keyways to fix the relative positions.

[0031] In addition, as a further optional implementation, in order to further improve the overall mass of the main eccentric block and the auxiliary eccentric block after combination, and further increase the vibration intensity, in this embodiment, the outer diameter of the semi-ring body 82 of the auxiliary eccentric block 6 is greater than or equal to the outer diameter of the semi-ring body 82 of the main eccentric block 4, thereby increasing the overall size and mass of the auxiliary eccentric block by changing the rotation radius of the center of gravity of the auxiliary eccentric block, thereby increasing the vibration intensity, and avoiding the problem of limited increase in vibration intensity after combination due to the small mass and size of the auxiliary eccentric block.

[0032] As a further specific implementation, the plug-in structure includes a tapered hole 91 and a tapered pin 92 respectively arranged between the opposite surfaces of the secondary eccentric block 6 and the main eccentric block 4, and the tapered hole 91 and the tapered pin 92 are plugged in. In this embodiment, two pairs of tapered holes and tapered pins are provided. When the handle is rotated to drive the lead screw to rotate, and then the bearing plate is driven to move, the secondary eccentric block of the slide seat on the bearing plate moves, and stops moving when the tapered hole and the tapered pin are matched. The secondary eccentric block is combined with the main eccentric block. When the driving shaft drives the main eccentric block to rotate, the main eccentric block can drive the secondary eccentric block to rotate synchronously with the tapered hole and the tapered pin. The tapered hole and the tapered pin can be set to guide the tapered pin to be inserted into the tapered hole even if it is not completely aligned, thereby reducing the difficulty of plug-in matching.

[0033] Embodiment 4, an eccentric block type vibration box, based on embodiment 3, as Figure 2 As shown, the box 1 is provided with a cooling channel 13, and the inlet and outlet of the cooling channel 13 are both provided on the outer wall of the box 1. By providing the cooling channel, it can be connected to a conventional cooling system to achieve heat dissipation of the box. When the equipment is in long-term operation, the heat generated by the rotational friction can be dissipated under the action of the cooling system. In actual use, as an optional solution, the cooling channel 13 is directly opened on the box, and pipe joints are provided at the inlet and outlet of the cooling channel, which are respectively connected to the water inlet pipe and the water outlet pipe. The water inlet pipe is connected to the water pump, the water outlet pipe is connected to the water tank, and the water inlet end of the water pump is connected to the water tank, so that the cooling water can be pumped out from the water tank and pumped into the cooling channel by the water pump, and the heat on the box is taken away and returned to the water tank. The water tank is provided with a heat sink to achieve heat dissipation and cooling of the water tank and the cooling water therein.

[0034] In addition, a keyway is provided at the end of the drive shaft 2. In this embodiment, both ends of the drive shaft pass through the box, and a through hole is provided on the box to meet the passing of the drive shaft, and a sealing ring is provided between the inner wall of the through hole and the drive shaft to achieve sealing. The keyway is provided at the outer end of the drive shaft. In actual use, a total of four drive shafts are provided. The drive shaft ends on one side of the box are provided with gears, and the gears and the keyways at the drive shaft ends are matched by keys, and the adjacent gears are meshed, so as to achieve the synchronous rotation of the four drive shafts. A pulley is provided at the end of one of the drive shafts on the other side of the box, and the pulley and the keyway at the drive shaft end are matched by keys. A drive motor is fixed on the box, and a pulley is provided at the end of the drive motor. The pulley at the output end of the drive motor is connected to the pulley at the end of the drive shaft by a belt. When the drive motor is working, it can drive the drive shaft to rotate, thereby synchronously driving the four drive shafts to rotate. When the four drive shafts rotate, the main eccentric blocks thereon rotate to achieve the vibration effect.

[0035] In the initial state, the secondary eccentric block is separated from the main eccentric block, and the secondary eccentric block droops naturally. When the vibration intensity needs to be increased, rotate the drive shaft to move the main eccentric block to the drooping position, align the main eccentric block with the secondary eccentric block, rotate the handle to rotate the lead screw, and then push the secondary eccentric block to move toward the main eccentric block, so that the plug-in structure between the two is plugged in, and finally the main eccentric block and the secondary eccentric block are combined. A transparent window can be optionally provided on the box body to observe the matching state of the main eccentric block and the secondary eccentric block. It is also optional to set a mark on the drive shaft to mark the position of the main eccentric block. When the mark is rotated to the downward direction, thanks to the convenience of plugging in the tapered hole and the tapered pin, the secondary eccentric block and the main eccentric block can be combined by directly rotating the handle.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An eccentric block type vibration box, characterized in that: The invention comprises a box body (1), a plurality of drive shafts (2) are rotatably provided on the box body (1), a bearing plate (3) capable of sliding along the axial direction of the drive shaft (2) is provided in the box body (1), an adjustment mechanism cooperating with the bearing plate (3) is provided on the box body (1), and the adjustment mechanism is used to adjust the position of the bearing plate (3); a main eccentric block (4) is fixedly provided on the drive shaft (2), a sliding seat (5) is fixedly provided on the bearing plate (3), and a rotatable secondary eccentric block (6) is provided on the sliding seat (5); a plug-in structure is provided between the secondary eccentric block (6) and the main eccentric block (4), and the secondary eccentric block (6) and the main eccentric block (4) can be combined and separated by the plug-in structure.

2. The eccentric block type vibration box according to claim 1, characterized in that: A plurality of optical axes (11) are fixedly arranged in parallel in the box body (1), a plurality of linear bearings (12) are fixedly arranged on the bearing plate (3), and the linear bearings (12) are slidably matched with the optical axes (11); and a plurality of openings are provided on the bearing plate (3) for the driving shaft (2) to pass through.

3. The eccentric block type vibration box according to claim 2, characterized in that: The adjustment mechanism comprises a lead screw (71) rotatably arranged in the box body (1), a lead screw nut (72) fixedly arranged on the bearing plate (3) and drivingly matched with the lead screw (71) through the lead screw nut (72), a rotating shaft (73) connected to the end of the lead screw (71), the rotating shaft (73) passing through the box body (1) and having a rotating handle (74) at the end thereof.

4. The eccentric block type vibration box according to claim 3, characterized in that: A sealing ring is provided between the rotating shaft (73) and the box body (1).

5. The eccentric block type vibration box according to any one of claims 1 to 4, characterized in that: The slide seat (5) comprises a flange seat (51) connected to the bearing plate (3), a sleeve seat (52) is provided on one side of the flange seat (51), and the secondary eccentric block (6) is rotatably disposed on the sleeve seat (52).

6. The eccentric block type vibration box according to claim 5, characterized in that: The auxiliary eccentric block (6) and the main eccentric block (4) both comprise an annular body (81), with a semi-annular body (82) provided outside the annular body (81); the annular body (81) of the main eccentric block (4) is fixedly connected to the drive shaft (2), and the annular body (81) of the auxiliary eccentric block (6) is rotatably matched with the sleeve seat (52).

7. The eccentric block type vibration box according to claim 6, characterized in that: The outer diameter of the semi-ring body (82) of the auxiliary eccentric block (6) is greater than or equal to the outer diameter of the semi-ring body (82) of the main eccentric block (4).

8. The eccentric block type vibration box according to any one of claims 1 to 4, 6 and 7, characterized in that: The plug-in structure comprises a tapered hole (91) and a tapered pin (92) respectively arranged between opposite surfaces of the auxiliary eccentric block (6) and the main eccentric block (4), and the tapered hole (91) and the tapered pin (92) are plug-fitted.

9. The eccentric block type vibration box according to claim 8, characterized in that: The box body (1) is provided with a cooling channel (13), and the inlet and outlet of the cooling channel (13) are both provided on the outer wall of the box body (1).

10. The eccentric block type vibration box according to claim 9, characterized in that: The end of the drive shaft (2) is provided with a keyway.

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