Limiting device for disassembly and assembly of fixed jaw plate of jaw crusher

Abstract

The utility model relates to the technical field of jaw crushers, in particular to a limiting device for dismounting and mounting a fixed jaw plate of a jaw crusher, which is characterized by comprising a limiting tool and a front frame for mounting the fixed jaw plate, convex blocks are fixedly arranged at the edges of the upper end and the lower end of the back of the fixed jaw plate, and an embedding cavity is formed between the two convex blocks; the front side surface of the front frame is provided with an embedding boss matched with the embedding cavity, the fixed jaw plate is embedded in the embedding boss of the front frame through the embedding cavity, and the limiting tool is used for keeping applying a limiting acting force to the fixed jaw plate to prevent the fixed jaw plate from being separated in the direction away from one side of the front frame. According to the utility model, through the arrangement of the limiting tool and under the cooperation of the front frame, the fixed jaw plate can be correspondingly limited and fixed, so that the fixed jaw plate is prevented from being accidentally separated from and falling off from the front frame in the dismounting and mounting process, and the device is simple in structure and easy and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of jaw crusher, specifically relates to a limiting device for the dismounting of the fixed jaw plate of a jaw crusher. BACKGROUND

[0002] The jaw crusher is composed of a moving jaw plate and a fixed jaw plate to form a crushing cavity for crushing materials, and is widely used in the crushing of various ores and large materials in the mining, smelting, building material, highway, railway, water conservancy and chemical industries. The fixed jaw plate of some existing jaw crushers is installed on a front frame and is pressed against a side lining plate installed on the side plate of the frame, thereby fixing and installing the fixed jaw plate. However, when the fixed jaw plate is installed or replaced, if the side lining plate has not been installed, the fixed jaw plate will not be pressed against the front frame, which may cause the fixed jaw plate to fall off the front frame and cause harm to the operator. Therefore, a limiting device for the dismounting of the fixed jaw plate of a jaw crusher is needed, which is simple in structure, easy to use, and can limit and fix the fixed jaw plate, thereby preventing the fixed jaw plate from falling off the front frame during dismounting. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a limiting device for the dismounting of the fixed jaw plate of a jaw crusher, which is simple in structure, easy to use, and can limit and fix the fixed jaw plate, thereby preventing the fixed jaw plate from falling off the front frame during dismounting.

[0004] To solve the above technical problem, the utility model adopts the following technical scheme: a limiting device for the dismounting of the fixed jaw plate of a jaw crusher, which includes a limiting tool and a front frame for installing the fixed jaw plate. The upper and lower edges of the back surface of the fixed jaw plate are fixed with protrusions, and a fitting cavity is formed between the two protrusions. The front surface of the front frame is provided with a fitting boss compatible with the fitting cavity. The fixed jaw plate is fitted on the fitting boss of the front frame through the fitting cavity. The limiting tool is used to apply a limiting force to the fixed jaw plate to prevent it from moving away from the front frame.

[0005] Further, the limiting tool includes a first limiting tool, which is arranged between the front frame and the fixed jaw plate.

[0006] Further, the first limiting tool comprises a T-shaped bolt and at least one nut, the T-shaped bolt comprises a screw rod and a strip-shaped clamping block fixed at one end of the screw rod, the front frame is provided with a first through hole, the back surface of the fixed jaw plate is provided with at least one mounting groove, the inner surface of the mounting groove is fixedly provided with two symmetrically arranged stop blocks near the opening, the screw rod can pass through the first through hole and extend into the mounting groove at the end provided with the strip-shaped clamping block, and after being rotated by 90 degrees, the strip-shaped clamping block can be clamped inside the two stop blocks, and the other end of the screw rod is threadedly connected with the nut.

[0007] Further, the first limiting tool further comprises a backing plate, the backing plate is provided with a circular hole, and the backing plate is sleeved on the screw rod through the circular hole and located between the nut and the front frame.

[0008] Further, the nut is two.

[0009] Further, the mounting groove is two and is respectively arranged on the upper and lower sides of the back surface of the fixed jaw plate.

[0010] Further, the rack side plate is further included, the limiting tool comprises a second limiting tool, the second limiting tool is two, and the two second limiting tools are respectively arranged between the two rack side plates and the fixed jaw plate.

[0011] Further, the second limiting tool comprises a locking bolt, a mounting plate and a limiting block, the rack side plate is provided with a second through hole, the left and right side surfaces of the fixed jaw plate are both provided with at least one limiting groove, the mounting plate is fixedly arranged at one end of the limiting block, the other end of the limiting block can pass through the second through hole and be clamped into the limiting groove, and the mounting plate is locked and fixed to the outer side surface of the rack side plate through the locking bolt.

[0012] Further, the cross section of the limiting groove is in a wedge shape, a first inclined surface is arranged in the limiting groove near the back surface of the fixed jaw plate, and the width of the limiting groove gradually decreases from outside to inside, the other end of the limiting block is matched with the limiting groove and is provided with a second inclined surface matched with the first inclined surface.

[0013] Further, the left and right side surfaces of the fixed jaw plate are both provided with two limiting grooves and are respectively arranged on the upper and lower sides thereof.

[0014] As described above, the limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher provided by this utility model has the following beneficial effects: By setting the limiting fixture, a limiting force is applied to the fixed jaw plate to prevent it from detaching away from the front frame, thus providing a corresponding limiting and fixing effect on the fixed jaw plate. This prevents the fixed jaw plate from accidentally detaching from the front frame and falling during the disassembly and assembly process, effectively ensuring the personal safety of the operator. During the actual disassembly and assembly of the fixed jaw plate, the first limiting fixture, the second limiting fixture, or the first limiting fixture can be selected as needed. Combined with the second limiting fixture, when the first limiting fixture is used, the locking nut is tightened until the pad is in contact with the front frame, so that the fixed jaw plate can be tightly pulled on the front frame from the rear side of the fixed jaw plate by T-bolts. When the second limiting fixture is used, the mounting plate is locked and fixed to the outer side of the frame side plate by locking bolts, so that the limiting block is stably locked in the limiting groove of the fixed jaw plate. In this way, the fixed jaw plate can be limited and fixed from the left and right sides of the jaw crusher respectively. Moreover, the overall structure of the first and second limiting fixtures is simple, easy to use, and low in manufacturing cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher, according to Embodiment 1 of this utility model.

[0016] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0017] Figure 3 This is a three-dimensional structural diagram of the first limiting fixture.

[0018] Figure 4 This is a schematic diagram of a limiting device for disassembling and assembling the fixed jaw plate of a jaw crusher, as shown in Embodiment 2 of this utility model.

[0019] Figure 5 for Figure 4 A magnified view of a portion of point B in the middle.

[0020] Figure 6 This is a three-dimensional structural diagram of the second limiting fixture.

[0021] Figure 7 This is a schematic diagram of a partial structure of the jaw plate.

[0022] In the figure: 1 - first limit tool; 11 - T-shaped bolt; 111 - screw rod; 112 - strip-shaped clamping block; 12 - nut; 13 - backing plate; 2 - second limit tool; 21 - locking bolt; 22 - mounting plate; 23 - limiting block; 231 - second inclined surface; 3 - fixed jaw plate; 31 - protrusion; 32 - mounting groove; 33 - stop block; 34 - limiting groove; 341 - first inclined surface; 4 - front frame; 41 - fitting boss; 42 - first through hole; 5 - rack side plate; 51 - second through hole. DETAILED DESCRIPTION

[0023] The utility model will be further described below through specific embodiments.

[0024] Example one

[0025] As Figures 1 to 3 shown, a kind of limit device for jaw crusher fixed jaw plate dismounting of the utility model, including limit tool and the front frame 4 for installing fixed jaw plate 3, the upper and lower ends of the back surface of the fixed jaw plate 3 are all fixed with protrusion 31 and form fitting cavity between two protrusions 31, the front side surface of the front frame 4 is equipped with fitting boss 41 with the fitting cavity is adapted, the fixed jaw plate 3 is embedded in the fitting boss 41 of the front frame 4 by the fitting cavity, the limit tool is used to keep the fixed jaw plate 3 and exert a limit force preventing the fixed jaw plate 3 from the direction of the side direction away from the front frame 4 and separate, the fixed jaw plate 3 can be limited and fixed accordingly, to avoid the fixed jaw plate 3 from the front frame 4 accidentally separate and fall during dismounting process, to effectively ensure the personal safety of operator, and avoid causing the damage of equipment, and its use is easy and simple.

[0026] The limiting tool comprises a first limiting tool 1 arranged between the front frame 4 and the fixed jaw plate 3, the first limiting tool 1 comprises a T-shaped bolt 11 and at least one nut 12, the T-shaped bolt 11 comprises a screw rod 111 and a strip-shaped clamping block 112 fixed at one end of the screw rod 111, the front frame 4 is provided with a first through hole 42, the back surface of the fixed jaw plate 3 is provided with at least one mounting groove 32, the inner surface of the mounting groove 32 is fixedly provided with two symmetrically arranged stop blocks 33 near the opening, the screw rod 111 can pass through the first through hole 42 and extend into the mounting groove 32 at one end provided with the strip-shaped clamping block 112, and after rotating 90 degrees, the strip-shaped clamping block 112 can be clamped inside the two stop blocks 33, and the other end of the screw rod 111 is threadedly connected with the nut 12, in addition, the first limiting tool 1 further comprises a backing plate 13, the backing plate 13 is provided with a circular hole, the backing plate 13 is sleeved on the screw rod 111 through the circular hole and located between the nut 12 and the front frame 4, thereby by locking the nut 12 until the backing plate 13 is attached to the front frame 4, so that the fixed jaw plate 3 can be tightly pulled by the T-shaped bolt 11 from the rear side of the fixed jaw plate 3 on the front frame 4, effectively preventing the fixed jaw plate 3 from accidentally separating from the front frame 4 and falling off during disassembly, and the whole structure is simple, easy to use, and low in manufacturing cost.

[0027] Preferably, the nut 12 is two, thereby further playing a loosening prevention role.

[0028] Preferably, the mounting groove 32 is two and arranged on the upper and lower sides of the back surface of the fixed jaw plate 3, when one end of the broken surface of the fixed jaw plate 3 is worn out and turned over, the first limiting tool 1 can also conveniently play a corresponding limiting and fixing role on the fixed jaw plate 3.

[0029] Example two

[0030] As Figures 4 to 7As shown, the difference between the embodiment and the embodiment one is that the limiting device further comprises rack side plates 5, the limiting tool comprises second limiting tools 2, the second limiting tools 2 are two, the two second limiting tools 2 are respectively arranged between the two rack side plates 5 and the fixed jaw plate 3, the second limiting tool 2 comprises locking bolts 21, mounting plates 22 and limiting blocks 23, the rack side plate 5 is provided with a second through hole 51, the left and right side surfaces of the fixed jaw plate 3 are both provided with at least one limiting groove 34, the mounting plate 22 is fixedly arranged at one end of the limiting block 23, the other end of the limiting block 23 can pass through the second through hole 51 and be clamped into the limiting groove 34, the mounting plate 22 is locked and fixed on the outer side surface of the rack side plate 5 through the locking bolt 21, in addition, the locking bolt 21 can be further sleeved with a gasket, correspondingly, the locking bolt 21 is two, the mounting plate 22 is provided with two locking holes through which the locking bolt 21 passes, when the front end of the front frame 4 is blocked by an obstacle, the space is narrow and inconvenient to operate, through the arrangement of the second limiting tool 2, it is convenient to operate from the left and right sides of the jaw crusher, the mounting plate 22 is locked and fixed on the outer side surface of the rack side plate 5 through the locking bolt 21, that is, the limiting block 23 can be stably clamped in the limiting groove 34 of the fixed jaw plate 3, in this way, the fixed jaw plate 3 can be fixed and limited from the left and right sides of the jaw crusher, which effectively prevents the fixed jaw plate 3 from accidentally separating from the front frame 4 and falling off during disassembly, and the whole structure is simple, easy to use, and low in manufacturing cost.

[0031] Preferably, the cross section of the limiting groove 34 is wedge-shaped, the limiting groove 34 is provided with a first inclined surface 341 on the side close to the back surface of the fixed jaw plate 3 and the width of the limiting groove 34 gradually decreases from outside to inside, and the other end of the limiting block 23 is adapted to the limiting groove 34 and is provided with a second inclined surface 231 abuttingly matched with the first inclined surface 341.

[0032] Preferably, the left and right side surfaces of the fixed jaw plate 3 are both provided with two limiting grooves 34 and are respectively located on the upper and lower sides, when one end of the fixed jaw plate 3 is worn out and turned over, the second limiting tool 2 can also be used to limit and fix the fixed jaw plate 3.

[0033] The other technical features are the same as those of the embodiment one.

[0034] The above is only some specific embodiments of the utility model, but the design concept of the utility model is not limited to this, any non-essential change of the utility model by using this concept should belong to the behavior of infringing the protection range of the utility model.

Claims

1. A limiting device for jaw crusher fixed jaw plate disassembly, characterized in that: The device comprises a limiting tool and a front frame for mounting a fixed jaw plate, wherein protrusions are fixed on the upper and lower edges of the back of the fixed jaw plate, and a fitting cavity is formed between the two protrusions, the front surface of the front frame is provided with a fitting boss matching the fitting cavity, the fixed jaw plate is fitted on the fitting boss of the front frame through the fitting cavity, and the limiting tool is used to apply a limiting force to the fixed jaw plate to prevent the fixed jaw plate from moving away from the front frame.

2. The limiting device for dismounting the fixed jaw plate of the jaw crusher according to claim 1, characterized in that: The limiting tool comprises a first limiting tool, which is arranged between the front frame and the fixed jaw plate.

3. The limiting device for the jaw plate dismounting of the jaw crusher according to claim 2, characterized in that: The first limiting tool comprises a T-shaped bolt and at least one nut, the T-shaped bolt comprises a screw rod and a strip-shaped clamping block fixed on one end of the screw rod, the front frame is provided with a first through hole, the back of the fixed jaw plate is provided with at least one mounting groove, the inner surface of the mounting groove is provided with two symmetrically arranged stop blocks near the opening, the screw rod can pass through the first through hole and extend into the mounting groove at one end provided with the strip-shaped clamping block, and the strip-shaped clamping block can be clamped in the two stop blocks after being rotated by 90 degrees, and the other end of the screw rod is threadedly connected with the nut.

4. The limiting device for the jaw plate dismounting of the jaw crusher according to claim 3, characterized in that: The first limiting tool further comprises a backing plate, the backing plate is provided with a circular hole, and the backing plate is sleeved on the screw rod through the circular hole and located between the nut and the front frame.

5. The limiting device for dismounting the fixed jaw plate of the jaw crusher according to claim 3, characterized in that: The nut is two.

6. The limiting device for the jaw plate dismounting of the jaw crusher according to claim 3, characterized in that: The mounting groove is two and arranged on the upper and lower sides of the back of the fixed jaw plate.

7. The limiting device for dismounting the fixed jaw plate of a jaw crusher according to claim 1, characterized in that: The device further comprises a rack side plate, the limiting tool comprises a second limiting tool, and the second limiting tool is two, which are arranged between the rack side plate and the fixed jaw plate.

8. The limiting device for the jaw plate dismounting of the jaw crusher according to claim 7, characterized in that: The second limiting tool comprises a locking bolt, a mounting plate and a limiting block, the rack side plate is provided with a second through hole, the left and right side surfaces of the fixed jaw plate are provided with at least one limiting groove, the mounting plate is fixed on one end of the limiting block, the other end of the limiting block can pass through the second through hole and be clamped into the limiting groove, and the mounting plate is locked and fixed on the outer side surface of the rack side plate through the locking bolt.

9. The stop device for dismounting the fixed jaw plate of the jaw crusher according to claim 8, characterized in that: The cross section of the limiting groove is wedge-shaped, a first inclined surface is arranged on the side close to the back of the fixed jaw plate in the limiting groove, and the width of the limiting groove gradually decreases from outside to inside, the other end of the limiting block is matched with the limiting groove and provided with a second inclined surface matched with the first inclined surface.

10. The limiting device for dismounting the fixed jaw plate of a jaw crusher according to claim 8, characterized in that: The left and right side surfaces of the fixed jaw plate are provided with two limiting grooves respectively arranged on the upper and lower sides.

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