Protective device for jaw crusher

Abstract

The protective device comprises a crusher body, a feed hopper is fixed at a feed port of the crusher body, the feed hopper and the crusher body are detachably connected, the feed hopper is obliquely arranged towards the upper left portion, a movable baffle capable of rotating downwards is installed on the inner side of the feed hopper, and the movable baffle is detachably connected with the crusher body. According to the crusher disclosed by the utility model, the movable baffle capable of rotating is arranged in the feeding hopper and rotates downwards under the gravity action of raw materials when the feeding hopper is charged, so that the raw materials enter the crusher body to be crushed; and when feeding is not carried out, the movable baffle rebounds and resets for shielding, so that raw materials are prevented from bursting out, protection is better achieved, and meanwhile the crushing treatment effect is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of jaw crushers, and particularly relates to a protection device for a jaw crusher. Background Art

[0002] A jaw crusher forms a crushing cavity (working cavity) that is large at the top and small at the bottom through a movable jaw plate and a fixed jaw plate. The movable jaw plate makes periodic reciprocating motions towards the fixed jaw plate, and the materials between the two jaw plates are crushed under the actions of extrusion, bending, and splitting. When processing large stones, the broken large stones are prone to having fragments pop out to the outside, posing a threat to the operators.

[0003] Chinese Patent with the publication number of CN215744062U discloses a safety protection device for a jaw crusher used in traditional Chinese medicine processing, which is convenient for protecting the operators. It includes a jaw crusher body, and the jaw crusher body includes a machine shell. Two belt pulleys are rotatably connected to the machine shell. The machine shell is connected with a protective shell, and the protective shell is connected with two protective covers. The belt pulleys are located inside the protective covers. The protective shell and the machine shell are connected with a feed hopper. A baffle cover is rotatably connected to the protective shell. A plurality of rotating rings are connected to the protective shell. A plurality of rotating grooves matching the rotating rings are formed on the baffle cover. The rotating rings are located inside the rotating grooves, and a locking assembly is connected to the baffle cover. The locking assembly includes a plurality of locking plates. The locking plates are connected to the baffle cover. Slide holes are formed on the locking plates. Locking rods are slidably connected inside the slide holes. The locking rods are connected with pull plates. Locking springs are connected between the pull plates and the locking plates. Locking grooves matching the locking rods are formed on the feed hopper.

[0004] The above-mentioned jaw crusher avoids the raw materials from popping out and causing harm to the operators by setting the baffle cover to block the feed inlet of the feed hopper. However, each time the material is fed, the baffle cover needs to be opened, and then closed after the feeding. The operation is rather cumbersome, and although it plays a protective role, it affects the efficiency of the crushing process. Summary of the Utility Model

[0005] In order to solve the problem that the use of the protection structure of the above-mentioned jaw crusher affects the efficiency of the crushing process, the present application provides a protection device for a jaw crusher, and adopts the following technical solutions:

[0006] A protection device for a jaw crusher includes a crusher body. A feed hopper is fixed at the feed inlet of the crusher body, and the feed hopper is detachably connected to the crusher body. The feed hopper is inclined upwards to the left, and a movable baffle that can rotate downwards is installed inside the feed hopper. The movable baffle can rotate back and forth for reset.

[0007] Preferably, the upper end of the movable baffle is rotatably connected to the upper side wall inside the feed hopper, and a connecting rod that passes upward through the side wall of the feed hopper is fixed to the upper end of the movable baffle, a tension spring is provided on the lower side of the connecting rod, and a hanging column fixed to the outside of the feed hopper is provided at the lower end of the tension spring, and both ends of the tension spring are respectively hung on the connecting rod and the hanging column.

[0008] Preferably, a crushing chamber is arranged at a position inside the crusher body corresponding to the feed port, a fixed jaw plate is arranged on the left side of the crushing chamber, and a movable jaw plate is arranged on the right side of the crushing chamber.

[0009] Preferably, a connecting edge protruding outward is fixed to the edge of the feed inlet of the crusher body, and a plurality of positioning holes are evenly arranged on the connecting edge.

[0010] Preferably, a side wall on the upper side of the feed hopper is provided with a clearance opening for the connecting rod to movably make way, and a rotating bracket for rotatably installing the movable baffle is fixed to the upper side wall in the feed hopper.

[0011] Preferably, a mounting edge protruding outward is fixed to the edge of the lower port of the feed hopper, a plurality of pins inserted in the positioning holes are fixed to the lower side of the mounting edge, and a plurality of buckle plates buckled on the edge of the connecting edge are also fixed to the lower side of the mounting edge.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a rotatable movable baffle plate in the feed hopper. When the feed hopper is fed with materials, the movable baffle plate rotates downward under the action of the gravity of the raw materials so that the raw materials enter the crusher body for crushing. When no materials are fed, the movable baffle plate rebounds and resets to block and prevent the raw materials from bursting out, thereby better protecting the materials without affecting the efficiency of the crushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of a protective device for a jaw crusher of the utility model;

[0016] Figure 2 It is a schematic diagram of a movable baffle of a protective device for a jaw crusher shown in the utility model;

[0017] Figure 3It is a schematic diagram of a crusher body of a protective device for a jaw crusher shown in the utility model;

[0018] Figure 4 The utility model is a schematic diagram of a feed hopper of a protective device for a jaw crusher.

[0019] In the figure: 1. Crusher body; 11. Connecting edge; 12. Fixed jaw plate; 13. Crushing chamber; 14. Movable jaw plate; 15. Positioning hole; 2. Feed hopper; 21. Rotating bracket; 22. Clearance opening; 23. Buckle plate; 24. Insert column; 25. Mounting edge; 3. Movable baffle; 31. Connecting rod; 32. Tension spring; 33. Hanging column. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0021] Please refer to Figure 1 As shown, a protective device for a jaw crusher includes a crusher body 1, a feed hopper 2 is fixed at the feed port of the crusher body 1, and the feed hopper 2 and the crusher body 1 are detachably connected, the feed hopper 2 is inclined to the upper left, and a movable baffle 3 that can rotate downward is installed on the inner side of the feed hopper 2, and the movable baffle 3 can be reset and rebounded. When the feed hopper 2 is fed with materials, the movable baffle 3 that can rotate downward is rotated under the gravity of the raw materials so that the raw materials enter the crusher body 1 for crushing. When no materials are fed, the movable baffle 3 rebounds and resets to block and prevent the raw materials from bursting out, thereby better realizing protection without affecting the efficiency of the crushing process.

[0022] Please refer to Figure 2 and Figure 4As shown, the upper end of the movable baffle 3 is rotatably connected to the upper side wall in the feed hopper 2, and the upper end of the movable baffle 3 is fixed with a connecting rod 31 that passes upward through the side wall of the feed hopper 2, and a clearance opening 22 for the connecting rod 31 to make way for the movable position is provided on the side wall on the upper side of the feed hopper 2. The feed hopper 2 makes way and guides the connecting rod 31 when it moves through the clearance opening 22, and a rotating bracket 21 for rotatably installing the movable baffle 3 is fixed to the upper side wall in the feed hopper 2, and the rotating bracket 21 rotatably installs the movable baffle 3, a tension spring 32 is provided on the lower side of the connecting rod 31, and a hanging column 33 fixed to the outer side of the feed hopper 2 is provided at the lower end of the tension spring 32, and the two ends of the tension spring 32 are respectively hung on the connecting rod 31 and the hanging column 33, and the tension spring 32 elastically pulls and rotates the connecting rod 31 so that the movable baffle 3 rotates back, thereby realizing the resetting of the movable baffle 3.

[0023] Please refer to Figure 3 As shown, a crushing chamber 13 is provided at a position corresponding to the feed port on the inner side of the crusher body 1, a fixed jaw plate 12 is provided on the left side of the crushing chamber 13, and a movable jaw plate 14 is provided on the right side of the crushing chamber 13. The movable jaw plate 14 cooperates with the fixed jaw plate 12 to crush the raw materials in the crushing chamber 13.

[0024] Please refer to Figure 3 and Figure 4 As shown, a connecting edge 11 protruding outward is fixed to the edge of the feed port of the crusher body 1, and the crusher body 1 is connected to the feed hopper 2 through the connecting edge 11. A plurality of positioning holes 15 are evenly arranged on the connecting edge 11. The connecting edge 11 is positioned when connected to the feed hopper 2 through the positioning holes 15. A mounting edge 25 protruding outward is fixed to the edge of the lower port of the feed hopper 2. A plurality of plug posts 24 inserted in the positioning holes 15 are fixed to the lower side of the mounting edge 25. The feed hopper 2 is positioned by inserting the plug posts 24 on the mounting edge 25 into the positioning holes 15. A plurality of buckle plates 23 buckled on the edge of the connecting edge 11 are also fixed to the lower side of the mounting edge 25, and the buckle plates 23 are buckled on the connecting edge 11 for fixing.

[0025] Working principle: When crushing stones or other raw materials, put the raw materials into the feed hopper 2, the raw materials will roll downward and push the movable baffle 3 to rotate downward and open, so that the raw materials enter the crusher body 1 for crushing. When there is no raw material entering, the movable baffle 3 will rotate back and reset under the drive of the tension spring 32, thereby completing the blocking of the broken raw material fragments.

[0026] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protective device for a jaw crusher, comprising a crusher body (1), characterized in that: A feed hopper (2) is fixed at the feed inlet of the crusher body (1), and the feed hopper (2) and the crusher body (1) are detachably connected. The feed hopper (2) is tilted toward the upper left, and a movable baffle (3) that can rotate downward is installed on the inner side of the feed hopper (2), and the movable baffle (3) can be reset and rebounded.

2. A protective device for a jaw crusher according to claim 1, characterized in that: The upper end of the movable baffle (3) is rotatably connected to the upper side wall inside the feed hopper (2), and a connecting rod (31) that passes upward through the side wall of the feed hopper (2) is fixed to the upper end of the movable baffle (3), a tension spring (32) is provided on the lower side of the connecting rod (31), and a hanging column (33) fixed to the outer side of the feed hopper (2) is provided at the lower end of the tension spring (32), and the two ends of the tension spring (32) are respectively hung on the connecting rod (31) and the hanging column (33).

3. A protective device for a jaw crusher according to claim 1, characterized in that: A crushing chamber (13) is arranged at a position inside the crusher body (1) corresponding to the feed port, a fixed jaw plate (12) is arranged on the left side of the crushing chamber (13), and a movable jaw plate (14) is arranged on the right side of the crushing chamber (13).

4. A protective device for a jaw crusher according to claim 3, characterized in that: The crusher body (1) is fixed with a connecting edge (11) protruding outward at the edge of the feed inlet, and a plurality of positioning holes (15) are evenly arranged on the connecting edge (11).

5. A protective device for a jaw crusher according to claim 2, characterized in that: The upper side wall of the feed hopper (2) is provided with a clearance opening (22) for the connection rod (31) to movably make way for the connection rod (31), and a rotating bracket (21) for rotatably mounting the movable baffle (3) is fixed to the upper side wall inside the feed hopper (2).

6. A protective device for a jaw crusher according to claim 4, characterized in that: A mounting edge (25) protruding outward is fixed to the edge of the lower port of the feed hopper (2), a plurality of plug posts (24) inserted into the positioning holes (15) are fixed to the lower side of the mounting edge (25), and a plurality of buckle plates (23) buckled on the edge of the connecting edge (11) are also fixed to the lower side of the mounting edge (25).

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