Roll gap adjusting device of grading crusher

Abstract

The utility model discloses a roll gap adjusting device of grading crusher, relates to crusher technical field, concretely including device body and rotating roll, the inner cavity of device body is movably connected with double-end screw rod, the outer circle of double-end screw rod both ends is threaded connection with threaded block, the threaded block is connected with rotating roll through bearing, and the rotating roll is connected with the device body through bearing. And the two rotating rollers are connected through a transmission structure. According to the roll gap adjusting device of the grading crusher, the double-end screw rod is adopted to drive the two crushing rolls of the grading crusher to move, and the central positions of the two crushing rolls can be kept unchanged, so that incoming materials can vertically enter the space between the two crushing rolls, and the phenomenon that the crushing rolls are abraded intensively due to many single-side material particles can be avoided; and through the arrangement of a first telescopic plate, a sealing plate and a second telescopic plate, the first telescopic plate, the sealing plate and the second telescopic plate can shield the moving groove, dust in the crusher can be prevented from entering the inner cavity of the device body, and the device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a roller gap adjusting device for a grading crusher. Background Art

[0002] In the field of crushing materials such as coal, coke, earth ore, gypsum, and solid waste, grading crushers usually achieve the goal of crushing the materials so that the particles of the materials reach the corresponding size, so as to facilitate the next processing or realize the secondary recycling of the materials. At present, in order to be able to crush materials of different sizes and adapt to different working conditions, the roller gap between a pair of crushing rollers of some grading crushing machines is adjustable. Prior art, some crusher roller gap adjustment devices are disclosed, such as a gap adjustment device for a crusher disclosed in the authorized patent with application number CN202221770759.4, including a bracket, a main body is provided on the upper end surface of the bracket, a feeding frame is provided at the center of the upper end surface of the main body, a drawing groove is provided at the lower end of the inner side wall of the feeding frame, and the front end of the drawing groove passes through the front wall of the feeding frame, and a first crushing roller is provided inside the main body, and a bearing and other components are provided at one end of the first crushing roller.

[0003] When the above scheme is in use, the movable roller is driven to move by the hydraulic device, so that the distance between the movable roller and the fixed roller is changed, thereby realizing the adjustment of the roller gap of the crushing roller. However, the above adjustment method causes the position between the center of the movable roller and the fixed roller and the discharge end of the feed port to change, and the material cannot vertically enter between the two crushing rollers, which may easily cause more particles on one side of the material, uneven pressure on the two crushing rollers, and easy damage to the crushing rollers. When the above scheme is in use, a moving groove for moving the connecting block needs to be opened on the main body. The dust in the crusher will adhere to the hydraulic device through the moving groove, affecting the use of the hydraulic device and making it inconvenient to clean. Based on this, the present application proposes a roller gap adjustment device for a grading crusher. Utility Model Content

[0004] The utility model provides a roller gap adjustment device for a grading crusher, which solves the problems proposed in the above background technology that materials cannot vertically enter between the two crushing rollers, which easily causes more material particles on one side, uneven pressure on the two crushing rollers, and easy damage to the crushing rollers; and dust generated when the crusher is working is easy to adhere to the hydraulic device, affecting the use of the hydraulic device and making it inconvenient to clean.

[0005] The utility model provides the following technical solutions: a roller gap adjustment device for a grading crusher, comprising a device body and a rotating roller, a double-headed screw rod is movably connected in the inner cavity of the device body, the outer rings at both ends of the double-headed screw rod are threadedly connected with thread blocks, the thread blocks are connected with the rotating rollers through bearings, a movable groove is provided on one side of the device body, one end of two rotating rollers extends to the outside of the device body through the movable groove, and one end of the rotating roller is movably connected with a sealing plate, the sealing plate contacts the outer surface of the device body, the two sealing plates are connected through a telescopic plate 1, the sealing plate is connected to the device body through a telescopic plate 2, and the two rotating rollers are connected through a transmission structure;

[0006] The transmission structure includes a driving gear, a synchronous wheel 1 fixedly connected to the driving gear, a driven gear ring meshing with the driving gear, a tension wheel, a synchronous wheel 2, a synchronous wheel 3 and a synchronous belt, wherein the synchronous wheel 3 is fixedly connected to the other end of a rotating roller, the other end of the other rotating roller is fixedly connected to the driven gear ring, the synchronous wheel 1 is movably connected to a threaded block connected to the other rotating roller, the synchronous wheel 1, the synchronous wheel 2 and the synchronous wheel 3 are connected through a synchronous belt transmission, the tension wheel contacts the top of the inner side of the synchronous belt, the tension wheel is connected to the device body through an electric telescopic rod, the synchronous wheel 2 is connected to the device body through a power input shaft, and the other end of the power input shaft extends to the outside of the device body.

[0007] Preferably, a servo motor is fixedly connected to one end of the inner cavity of the device body, the end of the output shaft of the servo motor is fixedly connected to the end of the double-headed screw, and the threaded block contacts the inner wall of the device body.

[0008] Preferably, one end of the synchronous wheel away from the driving gear is movably connected to a connecting frame, and the other end of the connecting frame is fixedly connected to the threaded block.

[0009] Preferably, the bottom of the electric telescopic rod is fixedly connected to the inner wall of the device body, the top of the electric telescopic rod is fixedly connected to a connecting block, and one end of the connecting block close to the synchronous belt is movably connected to a tensioning wheel.

[0010] Preferably, the bottom end of the device body away from the movable groove is movably connected to two limiting wheels, the second synchronous wheel is located below the middle of the two limiting wheels, and the limiting wheels are in contact with the outer surface of the synchronous belt.

[0011] Preferably, the second synchronous wheel is fixedly connected to the power input shaft, and the power input shaft is movably connected to the device body.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The roller gap adjustment device of the grading crusher adopts a double-headed screw to drive the two crushing rollers of the grading crusher to move, and the center positions of the two crushing rollers can remain unchanged, so that the incoming materials can vertically enter between the two crushing rollers, which can avoid the phenomenon of aggravated wear of the crushing rollers due to more material particles on one side; through the arrangement of the telescopic plate 1, the sealing plate and the telescopic plate 2, the telescopic plate 1, the sealing plate and the telescopic plate 2 can block the moving groove, which can prevent the dust in the crusher from entering the inner cavity of the device body, and facilitate the use of the device.

[0014] 2. The roller gap adjustment device of the grading crusher can drive the two rotating rollers to rotate by using the same driving source through the setting of the transmission structure, thereby saving the accessories cost of the grading crusher, and when the position between the two rotating rollers changes, the synchronous belt can be kept in a tensioned state by adjusting the position of the tensioning wheel in the vertical direction, so that the synchronous belt can drive the synchronous wheel one and the synchronous wheel three to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the structure of the utility model;

[0016] Figure 2 The utility model structure Figure 1 Back side diagram;

[0017] Figure 3 The utility model structure Figure 1 Internal schematic diagram;

[0018] Figure 4 The utility model structure Figure 3 Front view schematic diagram;

[0019] Figure 5 The utility model structure Figure 3 Explosion diagram.

[0020] In the figure: 1. device body; 2. moving groove; 3. rotating roller; 4. connecting block; 5. synchronous wheel three; 6. threaded block; 7. double-headed screw; 8. servo motor; 9. driven gear ring; 10. synchronous wheel one; 11. driving gear; 12. connecting frame; 13. synchronous wheel two; 14. synchronous belt; 15. limiting wheel; 16. tensioning wheel; 17. electric telescopic rod; 18. power input shaft; 19. sealing plate; 20. telescopic plate one; 21. telescopic plate two. 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] The utility model provides a roller gap adjustment device for a grading crusher, comprising a device body 1 and a rotating roller 3, wherein a movable groove 2 is arranged on one side of the device body 1, and two rotating rollers 3 are movably connected in the inner cavity of the movable groove 2, and one end of the rotating roller 3 extends to the outside of the device body 1, and the other end of the rotating roller 3 is located in the inner cavity of the device body. When the device is in use, the rotating roller 3 is fixedly connected to the crushing roller of the grading crusher, and when the rotating roller 3 rotates, the crushing roller of the decomposition crusher can be driven to rotate.

[0023] One end of the rotating roller 3 is movably connected with a sealing plate 19, the two sealing plates 19 are connected by a telescopic plate 1 20, the sealing plate 19 and the device body 1 are connected by a telescopic plate 21, the telescopic plate 1 20, the sealing plate 19 and the telescopic plate 2 21 are all in contact with the outer surface of the device body 1, through the arrangement of the telescopic plate 1 20, the sealing plate 19 and the telescopic plate 2 21, the telescopic plate 1 20, the sealing plate 19 and the telescopic plate 2 21 can shield the movable groove 2, and can prevent dust from entering the inner cavity of the device body 1 when the grading crusher is in use.

[0024] The outer surfaces of the telescopic plate 1 20 , the sealing plate 19 and the telescopic plate 2 21 are all fixed with sealing sheets, and the sealing sheet material can be rubber, so as to improve the sealing effect of the telescopic plate 1 20 , the sealing plate 19 and the telescopic plate 2 21 .

[0025] In some embodiments of the present application, the structures of the telescopic plate 1 20 and the telescopic plate 2 21 are the same as the telescopic shield structure disclosed in the authorized patent with application number CN202321461558.0.

[0026] A double-headed screw 7 is movably connected in the inner cavity of the device body 1, and the outer rings at both ends of the double-headed screw 7 are threadedly connected to the threaded blocks 6, and the threaded blocks 6 are in contact with the inner wall of the device body 1. The threaded blocks 6 are connected to the rotating roller 3 through the bearing, and the rotating roller 3 and the threaded blocks 6 are in a state of active connection. Through the setting of the double-headed screw 7, the rotation of the double-headed screw 7 can make the threaded block 6 threadedly connected thereto move in the direction where the double-headed screw 7 is located, and the moving directions of the two threaded blocks 6 are opposite, and the threaded block 6 can drive the rotating roller 3 connected thereto to move, thereby changing the distance between the two rotating rollers 3.

[0027] A servo motor 8 is fixedly connected to one end of the inner cavity of the device body 1, and the end of the output shaft of the servo motor 8 is fixedly connected to the end of the double-headed screw 7 through a reducer. Through the setting of the servo motor 8, the rotation of the servo motor 8 can drive the double-headed screw 7 fixedly connected thereto to rotate, thereby realizing the adjustment of the position between the two rotating rollers 3.

[0028] The two rotating rollers 3 are connected by a transmission structure, and the transmission structure is located in the inner cavity of the device body 1. In some embodiments of the present application, the transmission structure includes a driving gear 11, a synchronous wheel 10 fixedly connected to the driving gear 11, a driven gear ring 9 meshing with the driving gear 11, a tensioning wheel 16, a synchronous wheel 2 13, a synchronous wheel 3 5 and a synchronous belt 14.

[0029] The synchronous wheel three 5 is fixedly connected to the other end of a rotating roller 3, and the end of the synchronous wheel 10 away from the driving gear 11 is movably connected to the connecting frame 12, the other end of the connecting frame 12 is fixedly connected to the threaded block 6 connected to the other rotating roller 3, and the other end of the other rotating roller 3 is fixedly connected to the driven gear ring 9.

[0030] It can be known from the above description that when the rotating roller 3 moves, the driving gear 11 and the driven gear ring 9 are always in a meshing state.

[0031] The synchronous wheel 10, the synchronous wheel 2 13, and the synchronous wheel 3 5 are connected through the synchronous belt 14 transmission, and the end of the synchronous wheel 2 13 away from the moving groove 2 is fixedly connected with a power input shaft 18, the other end of the power input shaft 18 penetrates the device body 1 and extends to the outside of the device body 1, and the power input shaft 18 is movably connected to the device body 1. Through the setting of the power input shaft 18, when the power input shaft 18 is driven by a driving source such as a motor to rotate, the power input shaft 18 can drive the synchronous wheel 2 13 fixedly connected thereto to rotate, the synchronous wheel 2 13 drives the synchronous belt 14 to rotate, the synchronous belt 14 drives the synchronous wheel 10 and the synchronous wheel 3 5 to rotate, the synchronous wheel 10 drives the driven gear ring 9 to rotate through the driving gear 11, the driven gear ring 9 drives another rotating roller 3 connected thereto to rotate, and the synchronous wheel 3 5 drives the rotating roller 3 fixedly connected thereto to rotate, that is, through the setting of the transmission structure, the driving source of the grading crusher can simultaneously drive the two crushing rollers to rotate, and the rotation directions of the two crushing rollers are opposite.

[0032] The tensioning wheel 16 contacts the top of the inner side of the synchronous belt 14, and the end of the tensioning wheel 16 away from the movable groove 2 is movably connected to the connecting block 4, and the bottom of the connecting block 4 is fixedly connected to the electric telescopic rod 17, and the bottom of the electric telescopic rod 17 is fixedly connected to the inner wall of the device body 1. Through the setting of the electric telescopic rod 17, the extension and retraction of the electric telescopic rod 17 can change the position of the tensioning wheel 16. When the position of the tensioning wheel 16 changes, the tension of the synchronous belt 14 can be adjusted, so that when the position between the two rotating rollers 3 changes, the synchronous belt 14 can always be in a tensioned state, which is convenient for the synchronous belt 14 to drive the synchronous wheel 10 and the synchronous wheel 3 5 to rotate.

[0033] When the device is in use, when the distance between the two rotating rollers 3 is reduced, the electric telescopic rod 17 drives the tension wheel 16 to move upward, and when the distance between the two rotating rollers 3 is increased, the electric telescopic rod 17 drives the tension wheel 16 to move downward.

[0034] In some embodiments of the present application, a pressure detector is provided on the tensioning wheel 16, and the staff sets the pressure value of the tensioning wheel 16 when the synchronous belt 14 is in a tensioned state according to the needs. During the use of the device, the pressure detector detects the pressure value of the synchronous belt 14 on the tensioning wheel 16 to determine whether the synchronous belt 14 is in a tensioned state.

[0035] Two limiting wheels 15 are movably connected to the bottom end of the device body 1 on the side away from the movable groove 2, and the synchronous wheel 13 is located below the middle of the two limiting wheels 15, and the limiting wheel 15 is in contact with the outer surface of the synchronous belt 14, and under the action of the limiting wheel 15, the wrap angle between the synchronous wheel 13 and the synchronous belt 14 is not less than 120°, so that the synchronous wheel 13 can drive the synchronous belt 14 to rotate.

[0036] The electrical components involved in this application are all prior art, and technicians in this field are familiar with their connection methods. Through these technicians, all the electrical components in this application are connected to their compatible power supplies through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence are described below. The electrical connection is completed in a sequential working order, and the detailed connection means are well known in the art. The following mainly introduces the working principle and process, and no further explanation of the electrical control is given.

[0037] In summary, when the roller gap adjustment device for a grading crusher is used, the device body 1 is embedded in the body of the grading crusher, the rotating roller 3 is fixedly connected to the crushing roller of the grading crusher, and when the driving source of the grading crusher drives the power input shaft 18 to rotate, the power input shaft 18 can drive the synchronous wheel 2 13 fixedly connected thereto to rotate, the synchronous wheel 2 13 drives the synchronous belt 14 to rotate, the synchronous belt 14 drives the synchronous wheel 1 10 and the synchronous wheel 3 5 to rotate, the synchronous wheel 3 5 drives the rotating roller 3 fixedly connected thereto to rotate, the rotating roller 3 drives the crushing roller fixedly connected thereto to rotate, the synchronous wheel 10 drives the driving gear 11 fixedly connected thereto to rotate, the driving gear 11 drives the other rotating roller 3 to rotate through the driven gear ring 9 meshing therewith, the other rotating roller 3 drives the crushing roller fixedly connected thereto to rotate, and the rotation directions of the two crushing rollers are opposite, and one driving source can simultaneously drive the two crushing rollers in the grading crusher to rotate, which is convenient for the operation of the grading crusher.

[0038] When the distance between the two crushing rollers needs to be adjusted, the servo motor 8 is started. The servo motor 8 drives the double-headed screw 7 fixedly connected thereto to rotate. The rotation of the double-headed screw 7 changes the distance between the two rotating rollers 3, thereby realizing the roller gap adjustment of the two crushing rollers. During the rotation of the servo motor 8, the electric telescopic rod 17 drives the tensioning wheel 16 to move, so that the synchronous belt 14 is always in a tensioned state, which is convenient for the transmission structure to drive the crushing roller to rotate.

[0039] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A roller gap adjustment device for a grading crusher, comprising a device body and a rotating roller, characterized in that: A double-headed screw is movably connected in the inner cavity of the device body, and the outer rings at both ends of the double-headed screw are threadedly connected with thread blocks, and the thread blocks are connected to rotating rollers through bearings. A movable groove is provided on one side of the device body, and one end of the two rotating rollers extends to the outside of the device body through the movable groove, and one end of the rotating roller is movably connected with a sealing plate, and the sealing plate contacts the outer surface of the device body. The two sealing plates are connected through a telescopic plate 1, and the sealing plate is connected to the device body through a telescopic plate 2, and the two rotating rollers are connected through a transmission structure; The transmission structure includes a driving gear, a synchronous wheel 1 fixedly connected to the driving gear, a driven gear ring meshing with the driving gear, a tension wheel, a synchronous wheel 2, a synchronous wheel 3 and a synchronous belt, wherein the synchronous wheel 3 is fixedly connected to the other end of a rotating roller, the other end of the other rotating roller is fixedly connected to the driven gear ring, the synchronous wheel 1 is movably connected to a threaded block connected to the other rotating roller, the synchronous wheel 1, the synchronous wheel 2 and the synchronous wheel 3 are connected through a synchronous belt transmission, the tension wheel contacts the top of the inner side of the synchronous belt, the tension wheel is connected to the device body through an electric telescopic rod, the synchronous wheel 2 is connected to the device body through a power input shaft, and the other end of the power input shaft extends to the outside of the device body.

2. A roller gap adjustment device for a grading crusher according to claim 1, characterized in that: A servo motor is fixedly connected to one end of the inner cavity of the device body, the end of the output shaft of the servo motor is fixedly connected to the end of the double-headed screw, and the threaded block contacts the inner wall of the device body.

3. The roller gap adjustment device for a grading crusher according to claim 1, characterized in that: One end of the synchronous wheel away from the driving gear is movably connected to a connecting frame, and the other end of the connecting frame is fixedly connected to the threaded block.

4. The roller gap adjustment device for a grading crusher according to claim 1, characterized in that: The bottom of the electric telescopic rod is fixedly connected to the inner wall of the device body, the top of the electric telescopic rod is fixedly connected to a connecting block, and one end of the connecting block close to the synchronous belt is movably connected to a tensioning wheel.

5. The roller gap adjustment device for a grading crusher according to claim 1, characterized in that: The bottom end of the device body away from the moving groove is movably connected with two limiting wheels, the second synchronous wheel is located below the middle of the two limiting wheels, and the limiting wheel contacts the outer surface of the synchronous belt.

6. The roller gap adjustment device for a grading crusher according to claim 1, characterized in that: The second synchronous wheel is fixedly connected to the power input shaft, and the power input shaft is movably connected to the device body.

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