Jaw plate of jaw crusher

Abstract

The utility model discloses a jaw plate of a jaw crusher, and relates to the technical field of jaw crushers. The jaw plate comprises a static jaw plate and a movable jaw plate, pressing plates are fixed to the inner side wall of the static jaw plate and the inner side wall of the movable jaw plate, and connecting insertion grooves are symmetrically formed in the inner side wall of the static jaw plate and the inner side wall of the movable jaw plate. The screw is rotated clockwise to drive the driving seat to move upwards and drive the two herringbone movable frames on the two sides of the driving seat to rotate outwards, the movable plates can be pushed to move outwards through the herringbone movable frames, the movable plates are made to compress the springs, the protrusions are inserted into the grooves, and then the springs are fixed. The pressing plate can be quickly fixed on the static jaw plate and the movable jaw plate by rotating the screw anticlockwise to drive the driving seat to move downwards, and the movable plate can be driven to reset inwards under the action of the elastic force of the spring, so that the bulge is moved out of the groove, and the pressing plate can be quickly detached from the static jaw plate and the movable jaw plate. And a worker can conveniently replace the pressing plate which is seriously abraded.

Description

Technical Field

[0001] The utility model belongs to the technical field of jaw crushers, in particular to a jaw plate of a jaw crusher. Background Art

[0002] Jaw crusher, commonly known as jaw crusher, consists of two jaw plates, a movable jaw and a static jaw, forming a crushing chamber. It simulates the movement of the two jaws of an animal to complete the material crushing operation. It is widely used in the crushing of various ores and bulk materials in industries such as mining and smelting, building materials, roads, railways, water conservancy and chemicals. After searching, the patent with application number 202121287444.X discloses a jaw plate of a jaw crusher, which relates to the technical field of jaw crushers, including a static jaw plate and a moving jaw plate. The static jaw plate and the moving jaw plate are provided with a main mounting groove and a secondary mounting groove on the opposite sides. The main mounting groove and the secondary mounting groove are both arranged horizontally, with the main mounting groove in the middle and the secondary mounting grooves on both sides. The first jaw block is fixed in the main mounting groove, and the second jaw block is fixed in the secondary mounting groove.

[0003] However, during actual use, the applicant found that when replacing the pressure plates on the inner walls of the stationary jaw plate and the moving jaw plate, personnel were required to unscrew the bolts arranged on the side of the stationary jaw plate and the moving jaw plate away from the pressure plates from the corresponding pressure plates. Since the side of the stationary jaw plate and the moving jaw plate away from the pressure plates are mostly in contact with or close to the inner wall of the crusher, it is inconvenient for personnel to unscrew the bolts, and therefore it is inconvenient for personnel to disassemble and replace the pressure plates. In view of this, we propose a jaw plate for a jaw crusher. Utility Model Content

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The utility model is a jaw plate of a jaw crusher, comprising a stationary jaw plate and a moving jaw plate, wherein pressure plates are fixed on the inner side walls of the stationary jaw plate and the moving jaw plate, and connecting slots are symmetrically provided on the inner side walls of the stationary jaw plate and the moving jaw plate, and the interiors of the stationary jaw plate and the moving jaw plate are elastically connected to movable plates through springs, and protrusions are fixedly provided on the outer walls of the movable plates, and the middle parts of the stationary jaw plate and the moving jaw plate are rotatably connected to screws through bearings, and the stationary jaw plate and the moving jaw plate between the two movable plates are slidably connected to a drive seat, and guide rails are symmetrically provided on the side walls of the drive seat. The guide inclined surface, the lower end thread of the screw rod passes through the middle of the driving seat, the upper ends of the two screw rods extend to the outside of the stationary jaw plate and the movable jaw plate and are fixedly provided with an adjusting handle, the stationary jaw plate and the movable jaw plate between the movable plate and the screw rod are rotatably connected to the herringbone movable frame through a rotating shaft, one end of the herringbone movable frame abuts on the movable plate, and the other end of the herringbone movable frame abuts on the guide inclined surface, and connecting strips are symmetrically fixed on the inner side wall of the pressure plate, the connecting strips are matched with the connecting slots, and a groove is provided on the connecting strip, and the groove is matched with the protrusion.

[0006] Preferably, both ends of the movable plate inside the stationary jaw plate slide along guide grooves provided inside the stationary jaw plate.

[0007] Preferably, both ends of the movable plate inside the moving jaw plate slide along the guide grooves provided inside the moving jaw plate.

[0008] Preferably, three protrusions are arranged side by side and at equal intervals on the outer wall of the movable plate, and three grooves are arranged side by side and at equal intervals on the connecting strip.

[0009] Preferably, both ends of the rotating shaft inside the stationary jaw plate are rotatably connected to the stationary jaw plate via bearings, and both ends of the rotating shaft inside the moving jaw plate are rotatably connected to the moving jaw plate via bearings.

[0010] Preferably, the herringbone movable frame is sleeved and fixed on the middle part of the rotating shaft.

[0011] The utility model has the following beneficial effects:

[0012] The utility model relates to a jaw crusher, which drives a driving seat to move upward by rotating a screw rod clockwise, and can drive two herringbone-shaped movable frames on both sides of the driving seat to rotate outward, and can push the movable plate to move outward through the herringbone-shaped movable frame, and make the movable plate compress the spring so that the protrusion is inserted into the groove, so that the pressure plate can be quickly fixed on the stationary jaw plate and the moving jaw plate, and drives the driving seat to move downward by rotating the screw rod counterclockwise, and can drive the movable plate to reset inward under the elastic force of the spring, so that the protrusion is moved out of the groove, so that the pressure plate can be quickly disassembled from the stationary jaw plate and the moving jaw plate, and the operation is convenient, and personnel are convenient to replace the pressure plate that is severely worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of a jaw plate of a jaw crusher according to the present invention;

[0015] Figure 2 This is a structural diagram of a stationary jaw plate in a jaw crusher according to the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of a stationary jaw plate in a jaw crusher jaw plate of the utility model;

[0017] Figure 4 The utility model is a structural schematic diagram of the middle pressure plate of the jaw plate of a jaw crusher.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0019] 1. Stationary jaw; 11. Connecting slot; 2. Moving jaw; 3. Pressing plate; 31. Connecting strip; 32. Groove; 4. Movable plate; 41. Protrusion; 5. Rotating shaft; 6. Herringbone movable frame; 7. Spring; 8. Screw; 81. Adjusting handle; 9. Drive seat; 91. Guide slope. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 As shown, the utility model provides a technical solution:

[0022] A jaw crusher jaw plate includes a stationary jaw plate 1 and a moving jaw plate 2. Pressure plates 3 are fixed on the inner side walls of the stationary jaw plate 1 and the moving jaw plate 2. Connecting slots 11 are symmetrically opened on the inner side walls of the stationary jaw plate 1 and the moving jaw plate 2. The interiors of the stationary jaw plate 1 and the moving jaw plate 2 are elastically connected to movable plates 4 by springs 7. The two ends of the movable plate 4 inside the stationary jaw plate 1 slide along the guide grooves opened inside the stationary jaw plate 1, and the two ends of the movable plate 4 inside the moving jaw plate 2 slide along the guide grooves opened inside the moving jaw plate 2. A convex groove is fixed on the outer wall of the movable plate 4. The protrusions 41 on the outer wall of the movable plate 4 are arranged side by side with equal intervals. The middle parts of the stationary jaw plate 1 and the moving jaw plate 2 are rotatably connected with screw rods 8 through bearings. The stationary jaw plate 1 and the moving jaw plate 2 between the two movable plates 4 are slidably connected with a drive seat 9. The front and rear sides of the drive seat 9 slide along the inner side walls of the stationary jaw plate 1 and the moving jaw plate 2 where they are located. The side walls of the drive seat 9 are symmetrically provided with guide slopes 91. The lower end thread of the screw rod 8 passes through the middle part of the drive seat 9. The upper ends of the two screw rods 8 extend to the outside of the stationary jaw plate 1 and the moving jaw plate 2 and are fixed. There is an adjusting handle 81. The stationary jaw plate 1 and the moving jaw plate 2 between the movable plate 4 and the screw 8 are both rotatably connected to the herringbone movable frame 6 through the rotating shaft 5. The two ends of the rotating shaft 5 inside the stationary jaw plate 1 are rotatably connected to the stationary jaw plate 1 through bearings. The two ends of the rotating shaft 5 inside the moving jaw plate 2 are rotatably connected to the moving jaw plate 2 through bearings. The herringbone movable frame 6 is sleeved and fixed on the middle part of the rotating shaft 5. One end of the herringbone movable frame 6 abuts on the movable plate 4, and the other end of the herringbone movable frame 6 abuts on the guide inclined surface 91. By manually rotating the adjusting handle 81 clockwise to drive the screw 8 to rotate, it can It can drive the driving seat 9 to move upward along the screw rod 8. At this time, the herringbone movable frame 6 slides along the guide inclined surface 91, which can drive the herringbone movable frames 6 on both sides of the driving seat 9 to rotate outward around the rotating shaft 5 on which they are located, and can push the movable plate 4 to move outward through the herringbone movable frame 6 to compress the spring 7. By rotating the adjusting handle 81 counterclockwise to drive the screw rod 8 to rotate, the driving seat 9 can be driven to move downward. At this time, the movable plate 4 can move inward under the elastic force of the spring 7, and can push the herringbone movable frame 6 to rotate inward around the rotating shaft 5 through the movable plate 4 to gradually reset.

[0023] The cam 32 is connected with the cam 31 on the inner wall of the pressure plate 3, and the cam 31 is connected with the cam 31 by the groove 32. The cam 32 is connected with the groove 32 at equal intervals. The groove 32 is connected with the protrusion 41 by the groove 32. The cam 32 is connected with the cam 31 by the groove 32. The cam 32 is connected with the cam 31 by the groove 32. The cam 32 is connected with the cam 31 by the groove 32. The cam 32 is connected with the cam 31.

[0024] Working principle: When in use, by inserting the connecting strip 31 into the connecting slot 11 and manually turning the adjusting handle 81 clockwise to drive the screw 8 to rotate, the driving seat 9 can be driven to move upward along the screw 8. At this time, the herringbone movable frame 6 slides along the guide inclined surface 91, which can drive the herringbone movable frames 6 on both sides of the driving seat 9 to rotate outward around the rotating shaft 5 where they are located, and can push the movable plate 4 to move outward through the herringbone movable frame 6, compressing the spring 7 so that the protrusion 41 is inserted into the groove 32, which can fix the pressure plate 3 on the stationary jaw plate 1 and the moving jaw plate 2. When the pressure plate 3 is severely worn and needs to be replaced, the adjusting handle 81 can be manually turned counterclockwise to drive the screw 8 to rotate, which can drive the driving seat 9 to move downward. At this time, the movable plate 4 can be reset inwardly under the elastic force of the spring 7, and the protrusion 41 is removed from the groove 32, so that the pressure plate 3 can be removed from the stationary jaw plate 1 and the moving jaw plate 2, and the severely worn pressure plate 3 can be removed and replaced.

[0025] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0026] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein fall within the scope of protection of the present invention.

Claims

1. A jaw crusher jaw plate, comprising a stationary jaw plate (1) and a moving jaw plate (2), characterized in that: A pressure plate (3) is fixed on the inner side wall of the stationary jaw plate (1) and the moving jaw plate (2), and a connecting slot (11) is symmetrically provided on the inner side wall of the stationary jaw plate (1) and the moving jaw plate (2). The interior of the stationary jaw plate (1) and the moving jaw plate (2) are elastically connected to the movable plate (4) through a spring (7), and a protrusion (41) is fixedly provided on the outer wall of the movable plate (4). The middle part of the stationary jaw plate (1) and the moving jaw plate (2) are rotatably connected to a screw rod (8) through a bearing. A driving seat (9) is slidably connected in the stationary jaw plate (1) and the moving jaw plate (2) between the two movable plates (4), and a guide slope (91) is symmetrically provided on the side wall of the driving seat (9). The lower end thread of the screw rod (8) passes through the driving seat. (9), the upper ends of the two screw rods (8) extend to the outside of the stationary jaw plate (1) and the movable jaw plate (2) and are fixedly provided with an adjusting handle (81), and the stationary jaw plate (1) and the movable jaw plate (2) between the movable plate (4) and the screw rod (8) are both rotatably connected to a herringbone movable frame (6) through a rotating shaft (5), one end of the herringbone movable frame (6) abuts on the movable plate (4), and the other end of the herringbone movable frame (6) abuts on the guide inclined surface (91), and a connecting strip (31) is symmetrically fixed on the inner side wall of the pressure plate (3), and the connecting strip (31) is connected with the connecting slot (11), and a groove (32) is provided on the connecting strip (31), and the groove (32) is connected with the protrusion (41).

2. The jaw plate of a jaw crusher according to claim 1, characterized in that: The two ends of the movable plate (4) inside the stationary jaw plate (1) slide along the guide grooves provided inside the stationary jaw plate (1).

3. The jaw plate of a jaw crusher according to claim 1, characterized in that: The two ends of the movable plate (4) inside the moving jaw plate (2) slide along the guide grooves provided inside the moving jaw plate (2).

4. The jaw plate of a jaw crusher according to claim 1, characterized in that: Three protrusions (41) are arranged side by side at equal intervals on the outer wall of the movable plate (4), and three grooves (32) are arranged side by side at equal intervals on the connecting strip (31).

5. The jaw plate of a jaw crusher according to claim 1, characterized in that: The two ends of the rotating shaft (5) inside the stationary jaw plate (1) are rotatably connected to the stationary jaw plate (1) through bearings, and the two ends of the rotating shaft (5) inside the moving jaw plate (2) are rotatably connected to the moving jaw plate (2) through bearings.

6. The jaw plate of a jaw crusher according to claim 5, characterized in that: The herringbone movable frame (6) is sleeved and fixed on the middle part of the rotating shaft (5).

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