Eccentric mass block structure for adjusting exciting force of vibration exciter

Abstract

The utility model discloses an eccentric mass block structure for adjusting the exciting force of a vibration exciter, which comprises an eccentric block, the eccentric block is provided with a mounting hole mounted on an external driving shaft, the side surface of the eccentric block is provided with a plurality of uniformly distributed strip-shaped holes, eccentric adjusting blocks are rotatably arranged in the strip-shaped holes, and the eccentric adjusting blocks are arranged in the strip-shaped holes. A groove corresponding to the strip-shaped hole is formed in the arc-shaped face of the eccentric block, a balance weight adjusting bolt is in threaded connection with the interior of a screw hole of the groove, an inserting hole is formed in the eccentric adjusting block, and the balance weight adjusting bolt can be inserted into the inserting hole in a penetrating mode. The eccentric mass block structure for adjusting the exciting force of the vibration exciter is simple in structure, the exciting force can be directly adjusted by adjusting the weight distribution on the eccentric block, steel balls do not need to be additionally inlaid or dismantled, the adjusting mode is simple, the working efficiency can be effectively improved, operation is easy, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrators, in particular to an eccentric mass block structure for adjusting the exciting force of a vibrator. Background Art

[0002] The vibrator is a device attached to certain machines and equipment to generate excitation force. It is an important component for utilizing mechanical vibration. It can be used as an excitation component to form a vibrating machine to achieve tasks such as conveying, screening, compacting, shaping of materials or objects, and tamping of soil and sand.

[0003] The inertial vibrator uses the rotation of the eccentric block to generate the required excitation force. Among them, the mass of the vibrator is an important factor affecting the magnitude of the exciting force. The greater the mass, the greater the exciting force; therefore, the magnitude of the motor exciting force can be adjusted by changing the mass of the vibrator. The specific method commonly used in the prior art is to embed a certain number of steel balls on the surface of the eccentric block or to use heavy materials to make the eccentric block. This method of adjusting the exciting force is complicated to operate, and it is necessary to embed or remove steel balls to adjust the mass of the eccentric block. The exciting force cannot be adjusted directly by adjusting the weight distribution on the eccentric block, which is inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an eccentric mass block structure for adjusting the exciting force of the exciter. The structure is simple, and the exciting force can be adjusted directly by adjusting the weight distribution on the eccentric block. There is no need to additionally embed or remove steel balls. The adjustment method is simple, which can effectively improve work efficiency. The operation is simple and easy to use, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an eccentric mass block structure for adjusting the exciting force of an exciter, comprising an eccentric block, the eccentric block being provided with a mounting hole for mounting on an external driving shaft, the side of the eccentric block being provided with a plurality of evenly distributed strip holes, an eccentric adjustment block being rotatably arranged inside the strip holes, the arcuate surface of the eccentric block being provided with a groove corresponding to the strip holes, and a counterweight adjustment bolt being threadedly connected to the screw hole of the groove, and the eccentric adjustment block being provided with a socket so that the counterweight adjustment bolt can be inserted into the socket.

[0006] As a preferred technical solution of the utility model, there are no less than two eccentric adjustment blocks inside each strip-shaped hole.

[0007] As a preferred technical solution of the present utility model, there are no less than three strip-shaped holes.

[0008] As a preferred technical solution of the utility model, a rotating shaft is provided on the side of the eccentric adjustment block, the rotating shaft is rotatably connected to the inner wall of the strip hole, and the rotating shaft is staggered up and down with respect to the middle part of the height direction of the eccentric adjustment block.

[0009] As a preferred technical solution of the utility model, the head of the counterweight adjustment bolt can be completely stuck into the groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The eccentric mass block structure for adjusting the exciting force of the vibrator in the example of the utility model has a simple structure, and the exciting force can be adjusted directly by adjusting the weight distribution on the eccentric block, without the need for additional embedding or removal of steel balls. The adjustment method is simple, which can effectively improve work efficiency, and the operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the eccentric adjustment block in the utility model;

[0014] Figure 3 It is a schematic diagram comparing the structures before and after the eccentric adjustment block is flipped around the rotation axis.

[0015] In the figure: 1 eccentric block, 2 bar-shaped holes, 3 eccentric adjustment block, 31 rotating shaft, 4 counterweight adjustment bolt, 5 groove. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-3The utility model provides a technical solution: an eccentric mass block structure for adjusting the exciting force of an exciter, comprising an eccentric block 1, a mounting hole for mounting on an external driving shaft is provided on the eccentric block 1, a plurality of evenly distributed strip holes 2 are provided on the side of the eccentric block 1, an eccentric adjustment block 3 is rotatably arranged inside the strip hole 2, a groove 5 corresponding to the strip hole 2 is provided on the arc surface of the eccentric block 1, and a counterweight adjustment bolt 4 is threadedly connected to the screw hole of the groove 5, an insertion hole is provided on the eccentric adjustment block 3, so that the counterweight adjustment bolt 4 can be inserted into the insertion hole, the eccentric adjustment block 3 is rotated, and then the counterweight adjustment bolt 4 is rotated to be inserted into the insertion hole of the eccentric adjustment block 3.

[0018] Furthermore, there are at least two eccentric adjustment blocks 3 inside each strip-shaped hole 2, which can increase the adjustment range of the exciting force of the exciter.

[0019] Furthermore, there are no less than three strip holes 2, and the eccentric adjustment blocks 3 inside the three strip holes can be adjusted individually or in multiples at the same time, thereby increasing the adjustment range of the exciting force of the exciter.

[0020] Furthermore, a rotating shaft 31 is provided on the side of the eccentric adjustment block 3, and the rotating shaft 31 is rotatably connected to the inner wall of the strip hole 2, and the rotating shaft 31 is staggered up and down with respect to the middle part of the height direction of the eccentric adjustment block 3, so that the weight distribution of the eccentric block 1 can be changed after the eccentric adjustment block 3 is rotated.

[0021] Furthermore, the head of the counterweight adjusting bolt 4 can be completely stuck into the groove 5, so that the head of the counterweight adjusting bolt 4 can be hidden.

[0022] When using:

[0023] Adjustment method 1:

[0024] The eccentric adjustment block 3 is rotated around the rotating shaft 31, so that the positions of the eccentric adjustment blocks 3 on the upper and lower sides of the rotating shaft 31 are changed, thereby changing the center of gravity of the eccentric block 1;

[0025] Rotate the counterweight adjusting bolt 4 to insert the counterweight adjusting bolt 4 into the insertion hole of the eccentric adjusting block 3, so that the counterweight adjusting bolt 4 positions the eccentric adjusting block 3;

[0026] Adjustment method 2:

[0027] On the basis of adjustment method 1, the counterweight adjustment bolt 4 is rotated to adjust the head position of the counterweight adjustment bolt 4 while ensuring that the counterweight adjustment bolt 4 positions all eccentric adjustment blocks 3, thereby adjusting the center of gravity of the entire eccentric block 1.

[0028] The utility model has a simple structure, and can directly adjust the exciting force by adjusting the weight distribution on the eccentric block, without the need to additionally inlay or remove steel balls. The adjustment method is simple, and can effectively improve work efficiency. The operation is simple and the use is convenient.

[0029] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. An eccentric mass block structure for adjusting the exciting force of an exciter, comprising an eccentric block (1), the eccentric block (1) being provided with a mounting hole for mounting on an external drive shaft, characterized in that: The side surface of the eccentric block (1) is provided with a plurality of evenly distributed strip holes (2), an eccentric adjustment block (3) is rotatably arranged inside the strip hole (2), a groove (5) corresponding to the strip hole (2) is provided on the arc surface of the eccentric block (1), and a counterweight adjustment bolt (4) is threadedly connected inside the screw hole of the groove (5), and an insertion hole is provided on the eccentric adjustment block (3) so that the counterweight adjustment bolt (4) can be inserted into the insertion hole.

2. The eccentric mass block structure for adjusting the excitation force of the exciter according to claim 1, characterized in that: There are no less than two eccentric adjustment blocks (3) inside each strip-shaped hole (2).

3. The eccentric mass block structure for adjusting the excitation force of the exciter according to claim 1, characterized in that: The number of the strip-shaped holes (2) is no less than three.

4. The eccentric mass block structure for adjusting the excitation force of the exciter according to claim 1, characterized in that: A rotating shaft (31) is provided on the side of the eccentric adjustment block (3), the rotating shaft (31) is rotatably connected to the inner wall of the strip hole (2), and the rotating shaft (31) is staggered up and down with respect to the middle part of the eccentric adjustment block (3) in the height direction.

5. The eccentric mass block structure for adjusting the exciting force of the exciter according to claim 1, characterized in that: The head of the counterweight adjustment bolt (4) can be completely inserted into the groove (5).

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