Jaw crusher capable of preventing blockage of machine inlet

Abstract

The utility model discloses a jaw crusher capable of preventing blockage of a machine inlet, which relates to the technical field of jaw crushers and comprises a crusher body, the crusher body is provided with the machine inlet, a movable jaw plate and a fixed jaw plate, the movable jaw plate and the fixed jaw plate are positioned on opposite side walls in the machine inlet, and the movable jaw plate moves close to and away from the fixed jaw plate circularly and alternately. The inserting hole is obliquely formed towards the lower portion of the side away from the fixed jaw plate, and a tamping hammer is inserted into the inserting hole in a sliding mode. The ramming hammer can move in the inserting hole in a reciprocating mode, and the end, located in the machine inlet, of the ramming hammer can conduct crushing operation on one side edge in the machine inlet. According to the utility model, the plurality of ramming hammers are used for ramming upwards in a multi-point inclined manner on the inner side of the machine inlet while the mineral aggregate is crushed, so that the effect of pushing large-particle mineral aggregate upwards to wriggle is achieved, and the situation that the large-particle mineral aggregate is blocked in the machine inlet to cause blockage of the machine inlet is avoided; and meanwhile, a plurality of ramming hammers can be used for crushing large-particle mineral aggregates, a specially-assigned person does not need to be arranged for guarding, the cost is reduced, and the device is simple and practical.

Description

Technical Field

[0001] This utility model relates to the field of jaw crusher technology, specifically a jaw crusher for preventing blockage at the inlet. Background Technology

[0002] Jaw crushers typically have feeding devices installed at the feed hopper, and the equipment is connected by a drop hopper. Due to the large size and varied shape of the ore, and the mixture of stone, granules, and powder, the jaw crusher opening is prone to blockage, making normal crushing impossible. Usually, a dedicated person is needed to observe the feeding status and stop feeding in time to clear the blockage.

[0003] While assigning dedicated personnel to supervise the process can solve the problem of clearing blockages to some extent, human attention is limited. If attention is not focused, blockages can occur, making it difficult to move the blocked ore at the machine inlet due to their interaction with each other. This requires the use of prying equipment to assist in conveying the material, which is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a jaw crusher that prevents blockage at the inlet, thereby solving the problems mentioned in the background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a jaw crusher for preventing blockage of the inlet, comprising a body, the body having an inlet and a movable jaw plate and a fixed jaw plate located on opposite sidewalls inside the inlet, the movable jaw plate moving closer to and further away from the fixed jaw plate in a cyclical alternation.

[0006] Multiple insertion holes are provided on both the side wall of the fixed jaw plate and the side wall of the machine body. The insertion holes on the side wall of the fixed jaw plate and the insertion holes on the side wall of the machine body are coaxially distributed. The insertion holes are inclined downwards to the side away from the fixed jaw plate. A tamping hammer is slidably inserted into the insertion hole.

[0007] One end of the tamping hammer is located inside the machine inlet, and the other end extends outside the machine body. The tamping hammer can move back and forth in the insertion hole, and the end located inside the machine inlet can perform crushing operations on one side inside the machine inlet.

[0008] In a further embodiment, a bracket is horizontally installed at the top of the outer wall of the machine body. Two ear plates are fixed to each other at the upper end of the bracket, and a transmission roller is rotatably arranged between the two ear plates. A motor is also fixed to the upper side of the bracket, and a belt is connected between the output end of the motor and one end of the transmission roller.

[0009] A lever is fixed to the radial side wall of the transmission roller, and a hollow part is opened on the bracket below the transmission roller. The lever can rotate out of the hollow part with the transmission roller as the rotation center.

[0010] In a further embodiment, the bottom wall of the bracket is provided with two inverted T-shaped frames located on both sides of the bottom opening of the hollow part. Multiple plug-in shafts are rotatably provided on the opposite side walls of the bottom ends of the two inverted T-shaped frames. Multiple transmission rods are rotatably sleeved on the outer wall of the plug-in shafts. The dial rotates through the upper end of the transmission rods and can move the transmission rods to swing around the plug-in shafts as the rotation center. The bottom end of the transmission rod is set at the same height as the corresponding tamping hammer located outside the machine body.

[0011] In a further embodiment, the multiple hammers are of unequal length.

[0012] In a further embodiment, a counterweight is fixed to the end of the transmission rod facing away from the hammer.

[0013] In a further embodiment, the fixed jaw plate is fixed to the inner wall of the inlet, and the tamping hammer has a pointed end located inside the inlet.

[0014] In a further embodiment, an enlarged disc is fixedly sleeved on the outer wall of one end of the ramming hammer inside the machine inlet, and an enlarged recessed groove is provided at the end of the fixed jaw plate facing the movable jaw plate, and the inner diameter of the enlarged recessed groove is set to be equal to the outer diameter of the enlarged disc.

[0015] In a further embodiment, the hammer has an enlarged head at one end outside the machine body, and a ball is rotatably embedded at the end of the enlarged head.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model relates to a jaw crusher designed to prevent inlet blockage. The movable jaw plate moves in a cyclical alternation relative to the fixed jaw plate, crushing the ore. Simultaneously, multiple hammers strike the ore at multiple points on the inner side of the inlet, pushing large ore particles upwards and preventing them from getting stuck in the inlet and causing blockage. The design also allows for the forward movement of the hammers to crush large ore particles without requiring dedicated personnel, reducing costs and making it simple and practical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the assembly structure of the fixed jaw plate and multiple ramming hammers according to an embodiment of the present invention;

[0020] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of the structure at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the hoisting base and multiple transmission rods in an embodiment of this utility model.

[0022] In the diagram: 1. Body; 11. Movable jaw plate; 12. Fixed jaw plate; 13. Hammer; 14. Enlarged head; 15. Roller ball; 16. Tip; 17. Enlarged disc; 2. Bracket; 21. Drive roller; 22. Paddle plate; 3. Inverted T-shaped frame; 31. Drive rod; 32. Counterweight. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This embodiment provides a jaw crusher to prevent inlet blockage, such as... Figure 1 As shown, the machine includes a body 1, which has an inlet and a movable jaw plate 11 and a fixed jaw plate 12 located on opposite sidewalls inside the inlet. The fixed jaw plate 12 is fixed on the inner sidewall of the inlet, and the movable jaw plate 11 moves closer to and further away from the fixed jaw plate 12 in a cyclical alternation. Specifically, an eccentric shaft is rotatably inserted into the upper end of the body 1. The back sidewall of the movable jaw plate 11 is fixedly connected to the radial sidewall of the eccentric shaft. At the same time, a traction machine is installed on the sidewall of the body 1. Both ends of the eccentric shaft are fixedly connected to transmission discs. A belt is connected between the output end of the traction machine and one of the transmission discs to provide power for the rotation of the eccentric shaft. The movable jaw plate 11 reciprocates periodically around the eccentric shaft relative to the fixed jaw plate 12, sometimes moving closer and sometimes away. When the movable jaw plate 11 approaches the fixed jaw plate 12, the ore between the two jaw plates is crushed by a combination of crushing, splitting and bending; when the movable jaw plate 11 moves away from the fixed jaw plate 12, the crushed ore is discharged through the discharge port of the body 1 under the action of gravity.

[0025] Moreover, such as Figure 1 and Figure 2 As shown, multiple insertion holes are provided on the side wall of the fixed jaw plate 12 and the side wall of the machine body 1. The insertion holes on the side wall of the fixed jaw plate 12 and the insertion holes on the side wall of the machine body 1 are coaxially distributed. The insertion holes are inclined downwards to the side away from the fixed jaw plate 12. A tamping hammer 13 is slidably inserted into the insertion hole. One end of the tamping hammer 13 is located inside the machine inlet, and the other end extends to the outside of the machine body 1.

[0026] The tamping hammer 13 can reciprocate within the insertion hole, and one end located inside the inlet can perform crushing operations on one side of the inlet.

[0027] like Figure 1 and Figure 4 As shown, a bracket 2 is horizontally installed on the top of the outer wall of the body 1. Two ear plates are fixed to each other on the upper end of the bracket 2. A transmission roller 21 is rotatably installed between the two ear plates. A motor is also fixed on the upper side of the bracket 2. A belt is connected between the output end of the motor and one end of the transmission roller 21. A lever 22 is fixed on the radial side wall of the transmission roller 21. A hollow part is opened on the bracket 2 below the transmission roller 21. The motor provides power and drives the transmission roller 21 to rotate by belt transmission. The lever 22 rotates synchronously with the transmission roller 21. The lever 22 can rotate out of the hollow part with the transmission roller 21 as the rotation center.

[0028] Meanwhile, two inverted T-shaped frames 3 are provided on the bottom wall of the bracket 2, located on both sides of the bottom opening of the hollow section. Multiple plug-in shafts are rotatably provided on the bottom side walls of the two inverted T-shaped frames 3. Multiple transmission rods 31 are rotatably sleeved on the outer wall of the plug-in shafts. Moreover, the bottom end of the transmission rod 31 is set at the same height as the end of the tamping hammer 13 located outside the machine body 1. When the dial plate 22 rotates past the upper end of the transmission rod 31, it can move the transmission rod 31 to swing around the plug-in shaft as the rotation center. When the dial plate 22 rotates past the transmission rod 31, the bottom end of the transmission rod 31 will swing to the highest point, and then rotate in the opposite direction due to its own weight, striking the tamping hammer 13 set at the same height. The tamping hammer 13 will tilt upward along the inclined plug-in hole to perform a tamping action. This corresponds to the side crushing operation of large particles of ore in the machine inlet, and works with the movable jaw plate 11 and the fixed jaw plate 12 to carry out a comprehensive crushing operation.

[0029] The special design feature here is that the multiple tamping hammers 13 are of unequal length. For example... Figure 2 As shown, the purpose of this is that when each transmission rod 31 is flipped to the corresponding height by the lever 22, the lever 22 rotates and disengages from the transmission rod 31. The transmission rod 31 then falls due to its own weight, and its end strikes a tamping hammer 13 at the corresponding height. The tamping hammer 13 slides upwards along the insertion hole, crushing large particles of ore in the inlet. Because each tamping hammer 13 has a different length, the timing of each hammer's impact on the ore is different, resulting in asynchronous impacts at multiple points. This allows the ore to be struck by the tamping hammer 13 at different times and locations, achieving the crushing purpose. A counterweight 32 can also be fixed to the end of the transmission rod 31 facing away from the tamping hammer 13 to increase the impact inertia of the transmission rod 31 striking the tamping hammer 13, thereby increasing the impact force. A pointed tip 16 is provided at the end of the tamping hammer 13 located inside the inlet, and the tamping hammer 13 slides using this pointed tip 16 to crush the ore.

[0030] In summary, the movable jaw plate 11 moves closer and closer to the fixed jaw plate 12 in a cyclical alternation to crush the ore. At the same time, multiple hammers 13 strike the ore at multiple points on the inner side of the inlet, which pushes large ore particles upwards and prevents them from getting stuck in the inlet and causing blockage. This also allows the hammers 13 to move forward and crush large ore particles without the need for dedicated personnel, thus reducing costs.

[0031] In this embodiment, further, such as Figure 3 As shown, an enlarged disc 17 is fixedly fitted onto the outer wall of one end of the tamping hammer 13 located inside the inlet. The end opening of the fixed jaw plate 12's insertion hole facing the movable jaw plate 11 also has an enlarged recessed groove, and the inner diameter of the enlarged recessed groove is equal to the outer diameter of the enlarged disc 17. In this way, when the tamping hammer 13 slides down the inclined insertion hole under its own weight, the enlarged disc 17 will eventually be housed within the enlarged recessed groove, preventing the entire tamping hammer 13 from detaching from the insertion hole. Figure 2 As shown, the tamping hammer 13 is provided with an enlarged head 14 at one end outside the machine body 1. The purpose of the enlarged head 14 is that after the tamping hammer 13 is struck by the transmission rod 31, the enlarged head 14 will press against the outer opening of the insertion hole, preventing the entire tamping hammer 13 from passing through the insertion hole and completely entering the machine inlet due to the striking force. At the same time, a ball bearing 15 is rotatably embedded in the end of the enlarged head 14. The ball bearing 15 rolls and contacts the side wall of the end of the transmission rod 31, which can reduce the contact friction.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jaw crusher for preventing inlet blockage, characterized in that, include: The body (1) has an inlet and a movable jaw plate (11) and a fixed jaw plate (12) located on opposite sidewalls inside the inlet. The movable jaw plate (11) moves closer to and further away from the fixed jaw plate (12) in a cyclical alternation. Multiple insertion holes are provided on the side wall of the fixed jaw plate (12) and the side wall of the body (1). The insertion holes on the side wall of the fixed jaw plate (12) and the insertion holes on the side wall of the body (1) are coaxially distributed. The insertion holes are inclined downwards to the side away from the fixed jaw plate (12). A tamping hammer (13) is slidably inserted into the insertion hole. One end of the ramming hammer (13) is located inside the machine inlet, and the other end extends outside the machine body (1). The ramming hammer (13) can move back and forth in the insertion hole, and the end located inside the machine inlet can perform crushing operations on one side inside the machine inlet.

2. The jaw crusher for preventing inlet blockage according to claim 1, characterized in that, A bracket (2) is horizontally installed on the top of the outer wall of the body (1). Two ear plates are fixed at the upper end of the bracket (2). A transmission roller (21) is rotatably provided between the two ear plates. A motor is also fixed on the upper side of the bracket (2). A belt is connected between the output end of the motor and one end of the transmission roller (21). A lever plate (22) is fixed to the radial side wall of the transmission roller (21). A hollow part located below the transmission roller (21) is provided on the bracket (2). The lever plate (22) can rotate out of the hollow part with the transmission roller (21) as the rotation center.

3. The jaw crusher for preventing inlet blockage according to claim 2, characterized in that, The bracket (2) has two inverted T-shaped frames (3) located on both sides of the bottom opening of the hollow part. The bottom of the two inverted T-shaped frames (3) has multiple plug-in shafts rotatably mounted on the opposite side walls. Multiple transmission rods (31) are rotatably mounted on the outer wall of the plug-in shaft. The lever (22) rotates through the upper end of the transmission rod (31) and can move the transmission rod (31) to swing around the plug-in shaft as the rotation center. The bottom end of the transmission rod (31) is set at the same height as the end of the tamping hammer (13) located outside the machine body (1).

4. The jaw crusher for preventing inlet blockage according to claim 3, characterized in that, The lengths of the multiple tamping hammers (13) are not equal.

5. The jaw crusher for preventing inlet blockage according to claim 3, characterized in that, A counterweight (32) is fixed to the end of the transmission rod (31) facing away from the tamping hammer (13).

6. The jaw crusher for preventing inlet blockage according to claim 1, characterized in that, The fixed jaw plate (12) is fixed on the inner wall of the inlet, and the hammer (13) is located inside the inlet with a pointed end (16).

7. The jaw crusher for preventing inlet blockage according to claim 1, characterized in that, The ramming hammer (13) is fixedly fitted with an enlarged disc (17) on the outer wall of one end inside the machine inlet. The insertion hole of the fixed jaw plate (12) facing the movable jaw plate (11) is also provided with an enlarged recessed groove, and the inner diameter of the enlarged recessed groove is set to be equal to the outer diameter of the enlarged disc (17).

8. The jaw crusher for preventing inlet blockage according to claim 1, characterized in that, The hammer (13) is provided with an enlarged head (14) at one end outside the body (1), and the end of the enlarged head (14) is fitted with a ball (15) for rotation.

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