CN219309333U

CN219309333U - Dual-motor adjusting structure of vibrating screen

Info

Publication number: CN219309333U
Application number: CN202320681074.0U
Authority: CN
Inventors: 刘国祥; 孙捷武; 陶晨; 洪涛
Original assignee: Zhejiang Wujing Machine Manufacture Co ltd
Current assignee: Zhejiang Wujing Machine Manufacture Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-07-07
Anticipated expiration: 2033-03-31

Abstract

The utility model provides a double-motor adjusting structure of a vibrating screen, which relates to the technical field of adjusting structures and comprises a vibrating screen, wherein a double-motor adjusting mechanism is arranged on the side wall of the vibrating screen; the double-motor adjusting mechanism comprises two synchronous wheels which are arranged in parallel, a synchronous belt used for connecting the two synchronous wheels, two driving motors used for driving the two synchronous wheels to rotate, and a pinch roller structure arranged between the two synchronous wheels and used for tensioning the synchronous belt. According to the utility model, the position of the pinch roller on the connecting plate can be changed through the adjustment of the adjusting rod, so that the pinch roller can tension the synchronous belt, the synchronous belt is prevented from slipping and falling from between the two driving motors, and the stable operation of the vibrating screen is ensured; the synchronous belt can be stably clamped in the gear teeth of the driving wheel and enables the two synchronous wheels to synchronously rotate, so that vibration deviation of the synchronous wheels during operation is effectively avoided.

Description

Dual-motor adjusting structure of vibrating screen

Technical Field

The utility model relates to the technical field of adjusting structures, in particular to a double-motor adjusting structure of a vibrating screen.

Background

The vibrating screen is generally composed of a vibrator, a screen box, a vibration isolation device, a transmission device and the like, and is suitable for equipment for screening and grading the granularity of loose materials in industries such as coal, metallurgy, mineral separation, electric power, water conservancy, building materials, light industry, chemical industry and the like. The vibrating screen has a rectangular screen surface (screen mesh) mounted on the screen box. The screen box and the screen surface vibrate in circular, elliptic or linear track under the action of the vibrator. The vibration of the screen surface loosens the material layer on the screen surface and throws the material layer away from the screen surface, so that fine particles can fall through the material layer and are discharged through the screen holes, and particles clamped in the screen holes are vibrated out, so that the material moves forwards except the screening effect.

In the prior vibrating screen equipment, a motor is one of the most important parts of the vibrating screen, is used for driving the vibrating screen to vibrate or adjusting the exciting force of the vibrating screen, the vibrating screen provided with double motors generally enables the motor to be connected with two eccentric shafts inside the vibrating screen, and a synchronous wheel and a synchronous belt are arranged on one side of the eccentric shafts, on which the motor is not arranged, so as to ensure that the rotating speeds of the two eccentric shafts are consistent when the two eccentric shafts work. But hold-in range itself has elasticity, and the elasticity that can the hold-in range can change after using a period, if can not carry out tensioning to the hold-in range and adjust, can make the rotational speed of two eccentric shafts asynchronous when the shale shaker operates, can not only make the shale shaker in-process produce vibration skew like this, influence screening effect, still can lead to the hold-in range slippage, drop when serious to the stable work of shale shaker has been influenced.

Disclosure of Invention

The utility model aims to solve the problems that when the conventional vibrating screen device works, a synchronous belt is easy to loose and slip due to long-time vibration, and provides a double-motor adjusting structure of a vibrating screen.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the double-motor adjusting structure of the vibrating screen comprises the vibrating screen, wherein a double-motor adjusting mechanism is arranged on the side wall of the vibrating screen; the double-motor adjusting mechanism comprises two synchronous wheels which are arranged in parallel, a synchronous belt used for connecting the two synchronous wheels, two driving motors used for driving the two synchronous wheels to rotate, and a pinch roller structure arranged between the two synchronous wheels and used for tensioning the synchronous belt, wherein the synchronous wheels and the driving motors are respectively arranged on two outer side walls of the vibrating screen;

the belt pressing wheel structure comprises two fixing plates used for connecting the side wall of the vibrating screen, a connecting plate connected between the two fixing plates, a belt pressing wheel connected in the center of the connecting plate in a sliding manner and an adjusting rod vertically arranged between the two fixing plates and used for driving the belt pressing wheel to lift and adjust; the regulating rod is parallel to the connecting plate, the pinch roller passes through the connecting plate and is connected with the regulating rod, so that the pinch roller can be driven to slide up and down along the connecting plate and the regulating rod when the regulating rod rotates, and the synchronous belt is pressed between the two synchronous wheels through the pinch roller.

Preferably, the both sides of shale shaker all are equipped with the horizontal stand, and the both ends at horizontal stand top all are equipped with the elastic support seat that is used for connecting the shale shaker, the elastic support seat is one high one low two supporting seats to can incline the setting after making the elastic support seat of shale shaker and two horizontal stands connect.

Preferably, both ends of the vibrating screen are in an opening shape, and at least one layer of screen mesh is arranged in the vibrating screen.

Preferably, the cross section of the horizontal rack is of an I-shaped structure.

Preferably, the synchronous wheel comprises a counterweight wheel and a driving wheel connected with the counterweight wheel on the same eccentric shaft; the center of the outer circumference of the driving wheel is provided with gear teeth for accommodating the synchronous belt; and the eccentric shafts of the two synchronous wheels are respectively and fixedly connected with the output shafts of the two driving motors.

Preferably, the two driving motors comprise motors and connecting components fixed on output shafts of the motors; the two connecting components are used for connecting the output end of the motor on the same axis and the eccentric shaft of the synchronous wheel, so that the synchronous wheel can be driven to synchronously rotate through the connecting components when the motor on the same axis rotates.

Preferably, the connecting assembly comprises a fixed disc, a connecting belt and a flange disc; the fixed disc and the flange disc are arranged at intervals, the fixed disc is sleeved at one end of an eccentric shaft of the synchronous wheel, and the flange disc is fixedly connected with the output end of the motor; the connecting belts are circumferentially arranged and fixed in gaps between the fixed disc and the flange, and each connecting assembly is provided with at least three connecting belts.

Preferably, a chute for vertically sliding and adjusting the pinch roller is arranged in the center of the connecting plate.

Preferably, the pinch roller comprises a connecting column, a wheel body and a connecting block; the spliced pole is connected in the central authorities of wheel body one end, and the spliced pole slides and set up in the spout, the one end of keeping away from the wheel body at the spliced pole is connected to the connecting block for connect the regulation pole, the middle part of wheel body and the one end of keeping away from the spliced pole all are equipped with the bulge loop, so that the wheel body compresses tightly the hold-in range when, the hold-in range can laminate on the wheel body between the bulge loop all the time.

Preferably, the adjusting rod comprises an adjusting button, a rotary table, a screw rod and a spring; the rotary table is rotationally connected to the two fixing plates, the screw is fixed between the two rotary tables and is parallel to the connecting plate, the connecting plate is sleeved on the outer side of the screw, the adjusting knob is sleeved on the outer side of the rotary table of the upper end fixing plate, the spring is sleeved on the outer side of the rotary table below the adjusting knob, so that the adjusting knob is suspended above the upper end rotary table in a normal state, a lug is arranged at the bottom of the adjusting knob, a clamping groove matched with the lug is formed in the top end of the rotary table, the spring can be compressed after the adjusting knob is pressed down, the lug is clamped into the clamping groove, and the adjusting knob drives the rotary table and the screw to rotate synchronously.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the position of the pinch roller on the connecting plate can be changed through the adjustment of the adjusting rod, so that the pinch roller can tension the synchronous belt, the synchronous belt is prevented from slipping and falling from between the two synchronous wheels, and the stable operation of the vibrating screen is ensured.

2. According to the utility model, the synchronous belt can be stably clamped in the gear teeth of the driving wheels of the synchronous wheels and can enable the two synchronous wheels to synchronously rotate, so that vibration deviation of the synchronous wheels during operation is effectively avoided.

3. According to the utility model, the adjusting button can be pressed down and rotated by self stress to drive the turntable and the screw to synchronously rotate, so that the pinch roller is driven to lift along the chute of the connecting plate, the pressing force of the pinch roller on the synchronous belt is changed, the synchronous belt is ensured to be in a tensioning state between the two synchronous wheels, and the whole operation is simple; and when the adjusting knob is not stressed, the adjusting knob can be connected with the clamping groove through the protruding blocks under the action of the spring, so that even if the adjusting knob is impacted by external force to rotate, the adjusting knob can not drive the screw to rotate, and the pressing belt wheel is ensured to stably press the synchronous belt.

4. In the utility model, the fixed disc and the flange of the connecting component are connected through the connecting belt, and the connecting belt is not in traditional hard connection, and can be used as a buffer piece to eliminate the conduction of vibration force when the vibrating screen works, so that the vibration force can not be transmitted to the motor when the vibrating screen vibrates, the rotating force can be guided to the synchronous wheel through the motor, the synchronous wheel can stably rotate to work, the motor can be effectively prevented from vibrating along with the vibrating screen, and the influence on the motor when the vibrating screen works is reduced.

Drawings

FIG. 1 is a schematic perspective view of the present utility model at a first view angle;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic view of a partial side sectional structure of the pinch roller structure of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3B according to the present utility model;

FIG. 5 is a schematic perspective view of the second view of the present utility model;

fig. 6 is an enlarged view of fig. 5C according to the present utility model.

Legend description:

1. a vibrating screen; 11. a screen; 2. an elastic support seat; 3. a horizontal frame; 4. a synchronizing wheel; 41. a counterweight wheel; 42. a driving wheel; 421. gear teeth; 5. a synchronous belt; 6. a pinch roller structure; 61. a fixing plate; 62. a connecting plate; 621. a chute; 63. a pinch roller; 631. a connecting column; 632. a wheel body; 633. a convex ring; 634. a connecting block; 64. an adjusting rod; 641. an adjusting knob; 6411. a bump; 642. a turntable; 6421. a clamping groove; 643. a screw; 644. a spring; 7. a driving motor; 71. a motor; 72. a connection assembly; 721. a fixed plate; 722. a connecting belt; 723. a flange plate; 73. a fixing seat.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

The embodiment 1, as shown in fig. 1-4, provides a dual-motor adjusting structure of a vibrating screen, which comprises a vibrating screen 1, wherein a dual-motor adjusting mechanism is arranged on the side wall of the vibrating screen 1; the double-motor adjusting mechanism comprises two synchronizing wheels 4 which are arranged in parallel, a synchronous belt 5 used for connecting the two synchronizing wheels 4, two driving motors 7 used for driving the two synchronizing wheels 4 to rotate, and a pinch roller structure 6 arranged between the two synchronizing wheels 4 and used for tensioning the synchronous belt 5; wherein the synchronizing wheel 4 comprises a counterweight wheel 41 and a driving wheel 42 connected with the counterweight wheel 41 on the same eccentric shaft; the outer circumference center of the driving wheel 42 is provided with gear teeth 421 for accommodating the synchronous belt 5; the eccentric shafts of the two synchronous wheels 4 are respectively and fixedly connected with the output shafts of the two driving motors 7; in this embodiment, the two driving motors 7 each include a motor 71 and a connection assembly 72 fixed on an output shaft of the motor 71; the two connecting components 72 are used for connecting the output end of the motor 71 on the same axis and the eccentric shaft of the synchronous wheel 4, so that the synchronous wheel 4 can be driven to synchronously rotate by the connecting components 72 when the motor 71 on the same axis rotates; in this embodiment, the connection assembly 72 includes a fixed disk 721, a connection belt 722, and a flange 723; the fixed disk 721 and the flange 723 are arranged at intervals, the fixed disk 721 is sleeved at one end of an eccentric shaft of the synchronous wheel 4, and the flange 723 is fixedly connected with the output end of the motor 71; the connecting belts 722 are circumferentially arranged and fixed in the gap between the fixed disc 721 and the flange 723, and four connecting belts 722 are fixed on each connecting assembly 72;

the pinch roller structure 6 comprises two fixed plates 61 for connecting the side wall of the vibrating screen 1, a connecting plate 62 connected between the two fixed plates 61, a pinch roller 63 slidingly connected in the center of the connecting plate 62, and an adjusting rod 64 vertically arranged between the two fixed plates 61 for driving the pinch roller 63 to adjust in a lifting manner; the adjusting rod 64 is parallel to the connecting plate 62, the pinch roller 63 passes through the connecting plate 62 and is connected with the adjusting rod 64, so that the pinch roller 63 can be driven to slide up and down along the connecting plate 62 and the adjusting rod 64 when the adjusting rod 64 rotates, and the synchronous belt 5 is pressed between the two synchronous wheels 4 through the pinch roller 63;

the effect that its whole embodiment 1 reaches is, the motor 71 of driving motor 7 during operation, can give the synchronizing wheel 4 and drive counter weight wheel 41 and drive wheel 42 rotation through coupling assembling 72 with the rotation force, hold-in range 5 can stabilize the card and make two synchronizing wheels 4 synchronous rotation in the teeth 421 of drive wheel 42, effectively avoid vibrating screen 1 during operation, the vibrations that hold-in range 5 produced when synchronizing wheel 4 operates deviate, and pinch roller structure 6 can be through adjusting the regulation pole 64, change the position of pinch roller 63 on connecting plate 62, make pinch roller 63 can tighten hold-in range 5, avoid hold-in range 5 from between two synchronizing wheels 4, slip, the stable work of vibrating screen 1 has been guaranteed, and be connected through connecting belt 722 between connecting assembling 72's the fixed disk 721 and the ring flange 723, and not traditional hard connection, connecting belt 722 can be as the conduction of vibration force when vibrating screen 1 during operation, therefore vibration force transmission to motor 71 can not be given to vibrating screen 1 during operation, effectively reduce the influence to motor 71 during vibrating screen 1 operation.

In the embodiment 2, as shown in fig. 1, horizontal frames 3 are respectively arranged at two sides of the vibrating screen 1, elastic supporting seats 2 for connecting the vibrating screen 1 are respectively arranged at two ends of the top of the horizontal frames 3, and the elastic supporting seats 2 are two supporting seats which are higher and lower, so that the vibrating screen 1 and the elastic supporting seats 2 of the two horizontal frames 3 can be obliquely arranged after being connected; both ends of the vibrating screen 1 are open, and at least one layer of screen 11 is arranged in the vibrating screen 1; the cross sections of the horizontal frame 3 are all in an I-shaped structure.

In order to facilitate the fixation of the driving motor 7, a fixing seat 73 for supporting the motor 71 is further fixed on the horizontal frame 3, so that the motor 71 can be stably assembled on the horizontal frame 3, and the connecting assembly 72 is matched for use, so that the rotating force can be guided to the synchronizing wheel 4 through the motor 71, the synchronizing wheel 4 can stably rotate to work, the motor 71 can be effectively prevented from vibrating along with the vibrating screen 1, and the influence on the motor 71 during the working of the vibrating screen 1 is reduced.

The effect that its whole embodiment 2 reached is, the setting of horizontal frame 3 can make things convenient for the fixed of elastic support seat 2, and horizontal frame 3 of "worker" style of calligraphy structure has better stability, through setting up elastic support seat 2 to one high one low two supporting seats, can make vibrating screen 1 and elastic support seat 2 after being connected both can carry out steady placing through horizontal frame 3 and use, can guarantee again that vibrating screen 1 during operation is in the inclined state, makes things convenient for vibrating screen 1 to carry out classified collection along inclined screen cloth 11 after screening the material.

In embodiment 3, as shown in fig. 3 and 4, a chute 621 for vertically sliding and adjusting the pinch roller 63 is provided in the center of the connecting plate 62; the pinch roller 63 includes a connecting post 631, a wheel body 632, and a connecting block 634; the connecting column 631 is connected to the center of one end of the wheel body 632, the connecting column 631 is slidably disposed in the chute 621, the connecting block 634 is connected to one end of the connecting column 631 away from the wheel body 632, and is used for connecting the adjusting rod 64, and the middle part of the wheel body 632 and one end of the connecting column 631 away from the connecting column 631 are both provided with the convex rings 633, so that when the wheel body 632 compresses the synchronous belt 5, the synchronous belt 5 can be always attached to the wheel body 632 between the convex rings 633; the adjusting lever 64 includes an adjusting knob 641, a dial 642, a screw 643, and a spring 644; the turnplate 642 is rotatably connected to the two fixed plates 61, the screw 643 is fixed between the two turnplates 642 and is parallel to the connecting plate 62, the connecting block 634 is sleeved outside the screw 643, the adjusting knob 641 is sleeved outside the turnplate 642 of the upper fixed plate 61, the spring 644 is sleeved outside the turnplate 642 below the adjusting knob 641, so that the adjusting knob 641 is suspended above the upper turnplate 642 in a normal state, the bottom of the adjusting knob 641 is provided with a bump 6411, the top end of the upper turnplate 642 is provided with a clamping groove 6421 matched with the bump 6411, so that the spring 644 can be compressed after the adjusting knob 641 is pressed down and the bump 6411 is clamped into the clamping groove 6421, and the adjusting knob drives the turnplate 642 and the screw 643 to synchronously rotate; the adjustment knob 641 may be any one of a "one" shape, a "cross" shape, a "chevron" shape, and a "x" shape.

The effect achieved by the whole embodiment 3 is that the convex rings 633 can ensure that the synchronous belt 5 can be limited when the pinch roller 63 contacts with the synchronous belt 5, so that the synchronous belt 5 is always positioned on the wheel body 632 between the two convex rings 633, and the pinch roller 63 is ensured to stably compress the synchronous belt 5; the arrangement of the connecting column 631 and the connecting block 634 can ensure that the pinch roller 63 is stably connected with the connecting plate 62 and the adjusting rod 64, so that the pinch roller 63 can be driven to slide up and down along the connecting plate 62 for adjustment when the adjusting rod 64 works; when the adjusting knob 641 of the adjusting lever 64 is pressed down by force, the spring 644 is pressed, the protruding block 6411 of the adjusting knob 641 is clamped into the clamping groove 6421 of the turntable 642, so that the turntable 642 and the screw 643 can be driven to rotate synchronously when the adjusting knob 641 rotates, at the moment, the pinch roller 63 can lift along the screw 643 and the chute 621 of the connecting plate 62 under the action of the connecting block 634 and the connecting column 631, so that the actual use height of the pinch roller 63 on the connecting plate 62 is adjusted, the synchronous belt 5 is pressed by the adjustment of the pinch roller 63, the synchronous belt 5 can be kept in a tensioning state between the two synchronous wheels 4, and the whole operation is simple; when the adjusting knob 641 is not stressed, the adjusting knob 641 releases the connection between the bump 6411 and the slot 6421 under the action of the spring 644, so that the screw 643 is not driven to rotate even if the adjusting knob 641 is impacted by external force, thereby ensuring stable compression of the pinch roller 63 to the synchronous belt 5.

Working principle: firstly, according to the tightness of the synchronous belt 5 between two synchronous wheels 4, the adjusting knob 641 of the adjusting rod 64 is pressed to enable the lug 6411 of the adjusting knob 641 to be clamped into the clamping groove 6421 of the turntable 642, then the adjusting knob 641 is rotated to drive the turntable 642 and the screw 643 to synchronously rotate, at this time, the pinch roller 63 can lift along the screw 643 and the chute 621 of the connecting plate 62 under the action of the connecting block 634 and the connecting column 631, and the actual use height of the pinch roller 63 on the connecting plate 62 is changed, so that the pinch roller 63 can compress the synchronous belt 5, the synchronous belt 5 can be ensured to be stably tensioned between the two synchronous wheels 4, the synchronous belt 5 is prevented from falling off from between the two synchronous wheels 4, and the stable operation of the vibrating screen 1 is ensured.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. The double-motor adjusting structure of the vibrating screen comprises the vibrating screen (1), wherein a double-motor adjusting mechanism is arranged on the side wall of the vibrating screen (1); the method is characterized in that: the double-motor adjusting mechanism comprises two synchronous wheels (4) which are arranged in parallel, a synchronous belt (5) used for connecting the two synchronous wheels (4), two driving motors (7) used for driving the two synchronous wheels (4) to rotate, and a pinch roller structure (6) arranged between the two synchronous wheels (4) and used for tensioning the synchronous belt (5), wherein the synchronous wheels (4) and the driving motors (7) are respectively arranged on two outer side walls of the vibrating screen (1);

the pinch roller structure (6) comprises two fixed plates (61) used for connecting the side wall of the vibrating screen (1), a connecting plate (62) connected between the two fixed plates (61), a pinch roller (63) connected in the center of the connecting plate (62) in a sliding manner, and an adjusting rod (64) vertically arranged between the two fixed plates (61) and used for driving the pinch roller (63) to lift and adjust; the adjusting rod (64) is parallel to the connecting plate (62), the pinch roller (63) penetrates through the connecting plate (62) and is connected with the adjusting rod (64), so that the pinch roller (63) can be driven to slide up and down along the connecting plate (62) and the adjusting rod (64) when the adjusting rod (64) rotates, and the synchronous belt (5) is pressed between the two synchronous wheels (4) through the pinch roller (63).

2. The dual motor adjustment structure of a vibrating screen according to claim 1, wherein: the vibrating screen is characterized in that horizontal frames (3) are arranged on two sides of the vibrating screen (1), elastic supporting seats (2) used for connecting the vibrating screen (1) are arranged at two ends of the top of the horizontal frames (3), and the elastic supporting seats (2) are two supporting seats which are higher and lower, so that the vibrating screen (1) can be obliquely arranged after being connected with the elastic supporting seats (2) of the two horizontal frames (3).

3. The dual motor adjustment structure of a vibrating screen according to claim 2, wherein: both ends of the vibrating screen (1) are in an opening shape, and at least one layer of screen (11) is arranged in the vibrating screen (1).

4. The dual motor adjustment structure of a vibrating screen according to claim 2, wherein: the cross sections of the horizontal machine frames (3) are of I-shaped structures.

5. The dual motor adjustment structure of a vibrating screen according to claim 1, wherein: the synchronous wheel (4) comprises a counterweight wheel (41) and a driving wheel (42) connected with the counterweight wheel (41) on the same eccentric shaft; the center of the outer circumference of the driving wheel (42) is provided with gear teeth (421) for accommodating the synchronous belt (5); the eccentric shafts of the two synchronous wheels (4) are respectively and fixedly connected with the output shafts of the two driving motors (7).

6. The dual motor adjustment structure of a vibrating screen as recited in claim 5, wherein: the two driving motors (7) comprise motors (71) and connecting assemblies (72) fixed on output shafts of the motors (71); the two connecting components (72) are used for connecting the output end of the motor (71) on the same axis and the eccentric shaft of the synchronous wheel (4), so that the synchronous wheel (4) can be driven to synchronously rotate through the connecting components (72) when the motor (71) on the same axis rotates.

7. The dual motor adjustment structure of a vibrating screen as recited in claim 6, wherein: the connecting assembly (72) comprises a fixed disc (721), a connecting belt (722) and a flange plate (723); the fixed disc (721) and the flange disc (723) are arranged at intervals, the fixed disc (721) is sleeved at one end of an eccentric shaft of the synchronous wheel (4), and the flange disc (723) is fixedly connected with the output end of the motor (71); the connecting belts (722) are circumferentially arranged and fixed in a gap between the fixing plate (721) and the flange plate (723), and each connecting assembly (72) is provided with at least three connecting belts (722).

8. The dual motor adjustment structure of a vibrating screen according to claim 1, wherein: the center of the connecting plate (62) is provided with a chute (621) for vertically sliding and adjusting the pinch roller (63).

9. The dual motor adjustment structure of a vibrating screen according to claim 8, wherein: the pinch roller (63) comprises a connecting column (631), a wheel body (632) and a connecting block (634); the connecting column (631) is connected in the center of wheel body (632) one end, and connecting column (631) slides and sets up in spout (621), connecting block (634) are connected in the one end that wheel body (632) was kept away from to connecting column (631) for connect regulation pole (64), the middle part of wheel body (632) and the one end that keeps away from connecting column (631) all are equipped with bulge loop (633), so that wheel body (632) compresses tightly hold-in range (5) when, hold-in range (5) can laminate on wheel body (632) between bulge loop (633) all the time.

10. The dual motor adjustment structure of a vibrating screen according to claim 9, wherein: the adjusting rod (64) comprises an adjusting button (641), a rotary table (642), a screw (643) and a spring (644); the rotary table (642) is rotationally connected to the two fixing plates (61), the screw rod (643) is fixed between the two rotary tables (642) and is parallel to the connecting plate (62), the connecting block (634) is sleeved on the outer side of the screw rod (643), the adjusting knob (641) is sleeved on the outer side of the rotary table (642) of the upper end fixing plate (61), the spring (644) is sleeved on the outer side of the rotary table (642) below the adjusting knob (641), so that the adjusting knob (641) is suspended above the upper end rotary table (642) in a normal state, a lug (6411) is arranged at the bottom of the adjusting knob (641), a clamping groove (6421) matched with the lug (6411) is formed in the top end of the rotary table (642), the spring (644) can be compressed after the adjusting knob (641) is pressed down, the lug (6411) is clamped into the clamping groove (6421), and the rotary table (642) and the screw rod (643) are driven to rotate synchronously through the adjusting knob (641).