Jaw crusher and feed hopper thereof

Abstract

The utility model relates to crushing equipment in the industries of mines, building materials, metallurgy and the like, in particular to a jaw crusher and a feed hopper thereof. According to the technical scheme, the feeding hopper of the jaw crusher comprises a fixed frame, a material cavity is defined by three faces, and a discharging opening communicating with the material cavity is formed in the bottom of the fixed frame; the flow guide bottom plate and the two flow guide side plates are arranged in the notch of the fixed frame to form a feeding hole; the two flow guide side plates are hinged to the two sides of the notch of the fixed frame respectively and can rotate relative to the fixed frame so as to adjust the caliber of the discharging port. The flow guide bottom plate is located between the two flow guide side plates, and the pitching angle can be adjusted relative to the fixed frame so that the feeding inclination of the discharging opening can be controlled. According to the scheme, the design that the feeding hopper can be flexibly adjusted in multiple dimensions is achieved, so that the equipment performance and the process adaptation capacity are improved.

Description

Technical Field

[0001] This utility model relates to crushing equipment in industries such as mining, building materials, and metallurgy, and particularly to a jaw crusher and its feed hopper. Background Technology

[0002] Jaw crushers are widely used in mining, building materials, and metallurgy industries for medium and coarse crushing, and their performance directly affects production efficiency and equipment lifespan. The feed hopper, as a crucial component of the jaw crusher, plays a key role in guiding material evenly into the crushing chamber. However, existing jaw crusher feed hoppers generally suffer from the following problems:

[0003] Limited adjustment function: Existing guide plates are mostly designed with a fixed angle, which cannot flexibly adjust the material's drop trajectory according to material characteristics or crushing requirements. This causes material to concentrate and impact localized areas of the jaw plate, accelerating jaw plate wear and shortening equipment life. At the same time, the diameter and inlet angle of the feed port are difficult to adapt to different models of feeders or working conditions, limiting the equipment's versatility.

[0004] The aforementioned limitation of limited adjustment functions makes it difficult for existing jaw crushers to adapt to diverse material handling needs. There is an urgent need for a feed hopper design that can achieve multi-dimensional and flexible adjustment in order to improve equipment performance and process adaptability. Summary of the Invention

[0005] To address the aforementioned issues, the present invention aims to provide a jaw crusher and its feed hopper, featuring a feed hopper design that enables multi-dimensional and flexible adjustment, thereby enhancing equipment performance and process adaptability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This application provides a feed hopper for a jaw crusher, the technical solution of which is as follows: it includes a fixed frame, which is enclosed by three sides to form a material cavity, and a discharge port at the bottom that communicates with the material cavity; a guide bottom plate and two guide side plates are set in the notch of the fixed frame to form a feed port; the two guide side plates are respectively hinged to both sides of the notch of the fixed frame and can rotate relative to the fixed frame to adjust the diameter of the discharge port; the guide bottom plate is located between the two guide side plates and can adjust the pitch angle relative to the fixed frame to control the feed inclination of the discharge port.

[0008] Furthermore, this application also proposes that the fixed frame includes two base plates on both sides; side plates fixed to the two base plates on both sides respectively; and a rear panel fixed to the rear end of the two side plates.

[0009] Furthermore, this application also proposes that the flow guide side plate is hinged to both sides of the notch of the fixed frame, and a first sliding groove is provided on the bottom plate at the lower end of the flow guide side plate, and a first sliding component is slidably disposed in the first sliding groove; the inner side of the flow guide side plate is pressed against the flow guide bottom plate, and the outer side is pressed against by the first sliding component to limit its position.

[0010] Furthermore, this application also proposes that the first sliding assembly includes a first pressure block; a fastening assembly passing through the first pressure block and the first sliding groove; and that by tightening or loosening the fastening assembly, the first pressure block is controlled to lock or slide along the first sliding groove to adjust the opening and closing angle of the guide side plate.

[0011] Furthermore, this application also proposes that the inner end of the flow guide plate is hinged to the base plate, and a pad is provided below the flow guide plate; a second sliding groove is provided on the base plate on the outer side of the pad, and a second sliding component is slidably provided in the second sliding groove; the second sliding component presses against the pad, and the pad supports the flow guide plate to adjust its pitch angle.

[0012] Furthermore, this application also proposes that the second sliding assembly includes a second pressure block; a screw assembly passing through the second pressure block and the second slide groove; and that by tightening or loosening the screw assembly, the second pressure block is controlled to lock or slide along the second slide groove to adjust the position of the pad.

[0013] Furthermore, this application also proposes that the top of the side plate is provided with lifting lugs for hoisting the feed hopper.

[0014] Furthermore, this application also proposes that the rear panel, side panels and two flow guide side panels are provided with reinforcing ribs to improve the overall structural strength.

[0015] Furthermore, this application also proposes that the lower end of the base plate is provided with a base connecting plate, and the base connecting plate is provided with a connecting hole; the base connecting plate is used to extend into the inlet of the jaw crusher and is fixed to the jaw crusher through the connecting hole.

[0016] Furthermore, this application also proposes a jaw crusher including the aforementioned feed hopper, which is installed at the inlet of the jaw crusher.

[0017] As can be seen from the above, the jaw crusher and its feed hopper provided in this application, through the flexible adjustment design of the fixed frame, guide bottom plate and guide side plate, can flexibly adjust the material drop trajectory according to the material characteristics or crushing requirements, avoid the concentrated impact of material on the local area of ​​the jaw plate, reduce jaw plate wear, extend equipment life, and adapt to different models of feeders or working conditions, thereby improving the versatility of the equipment. It has a feed hopper design that can realize multi-dimensional and flexible adjustment to improve equipment performance and process adaptability. Attached Figure Description

[0018] Figure 1 A three-dimensional schematic diagram of the feed hopper of a jaw crusher provided in this application. Figure 1 .

[0019] Figure 2 A three-dimensional schematic diagram of the feed hopper of a jaw crusher provided in this application. Figure 2 .

[0020] Figure 3 A three-dimensional schematic diagram of the feed hopper of a jaw crusher provided in this application. Figure 3 .

[0021] Figure 4 A side view of the feed hopper of a jaw crusher provided in this application.

[0022] Figure 5 This is a schematic diagram of a jaw crusher with a feed hopper installed in Example 2. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example 1

[0028] like Figures 1-4 As shown, this embodiment relates to a feed hopper for a jaw crusher, including a fixed frame 1, a guide bottom plate 2, and two guide side plates 3. The fixed frame 1 is enclosed on three sides to form a material cavity, and a discharge port 4 communicating with the material cavity is provided at the bottom. The guide bottom plate 2 and the two guide side plates 3 are disposed within the notch of the fixed frame 1 to form a feed inlet 5. The two guide side plates 3 are respectively hinged to both sides of the notch of the fixed frame 1 and can rotate relative to the fixed frame 1 to adjust the diameter of the discharge port 4. The guide bottom plate 2 is located between the two guide side plates 3 and can adjust its pitch angle relative to the fixed frame 1 to control the feed inclination of the discharge port 4.

[0029] The fixed frame 1 can be welded from steel to ensure its structural strength and stability. The guide plate 2 and guide side plate 3 can be made of wear-resistant materials to extend their service life. The rotation adjustment of the guide side plate 3 can be achieved through a hinge connection, which can be made of stainless steel to ensure its corrosion resistance and durability. Specifically, the three-sided enclosure structure of the fixed frame 1 can effectively prevent material overflow during the feeding process, ensuring that the material enters the material chamber smoothly. The rotation adjustment function of the guide side plate 3 can flexibly adjust the diameter of the discharge port 4 according to different feeder models or working conditions, thereby improving the versatility of the equipment. The pitch angle adjustment function of the guide plate 2 can flexibly adjust the material drop trajectory according to the material characteristics or crushing requirements, avoiding concentrated material impact on local areas of the jaw plate and reducing jaw plate wear. Furthermore, the rotation adjustment of the guide side plate 3 and the pitch angle adjustment of the guide plate 2 can be coordinated to achieve multi-dimensional adjustment functions, thereby further improving the process adaptability of the equipment. For example, when the material has high hardness, the pitch angle of the guide plate 2 can be adjusted to allow the material to enter the crushing chamber at a gentler angle, reducing the impact force on the jaw plate. When the material particle size is large, the rotation angle of the guide plate 3 can be adjusted to enlarge the diameter of the discharge port 4, ensuring that the material enters the crushing chamber smoothly.

[0030] Therefore, the technical solution of this application, through the combined design of the fixed frame 1, the guide bottom plate 2, and the guide side plate 3, achieves a multi-dimensional and flexibly adjustable feed hopper structure, effectively solving the technical problem of the single adjustment function of the jaw crusher feed hopper. Compared with the prior art, the technical solution of this application has higher versatility and process adaptability, and can flexibly adjust the material drop trajectory and the diameter of the discharge port 4 according to different material characteristics and crushing requirements, thereby improving equipment performance and extending equipment service life.

[0031] In a specific implementation, the fixed frame 1 includes two base plates 1a, side plates 1b fixed to the base plates 1a, and a rear panel 1c fixed to the rear ends of the two side plates 1b. The base plates 1a support the entire fixed frame 1, the side plates 1b are fixedly connected to the base plates 1a to form the two side structures of the frame, and the rear panel 1c is connected to the rear ends of the side plates 1b to complete the enclosure of the frame. Specifically, the base plates 1a can be fixed to the side plates 1b by welding or bolting, and the side plates 1b and rear panel 1c can be connected in a similar manner to ensure the stability and reliability of the structure. As a preferred embodiment, the base plates 1a, side plates 1b, and rear panel 1c can be made of high-strength steel to enhance the load-bearing capacity and durability of the frame. This technical solution, by clearly defining the components of the fixed frame 1, makes the overall structure of the feed hopper clearer and more stable. The combination of the base plates 1a, side plates 1b, and rear panel 1c ensures the stability and reliability of the frame during installation and use. Thus, the structure of fixed frame 1 is clearly defined, solving the technical problem of unclear fixed frame structure in the prior art. Compared with the prior art, this solution achieves the stability and reliability of the frame through simple structural design, avoiding installation and use problems caused by unclear structure, thereby improving the overall performance of the feed hopper.

[0032] like Figure 1-3 As shown, the flow guide side plate 3 is hinged to both sides of the notch in the fixed frame 1. A first sliding groove 6 is provided on the bottom plate 1a at the lower end of the flow guide side plate 3, and a first sliding component 7 is slidably disposed within the first sliding groove 6. The inner surface of the flow guide side plate 3 presses against the flow guide bottom plate 2, and the outer surface is pressed against by the first sliding component 7 to restrict its position. Specifically, the first sliding groove 6 can be designed as a straight line or an arc to adapt to different adjustment requirements. The first sliding component 7 can adopt other forms of locking mechanisms, such as spring clamping devices or snap-fit ​​structures, to provide different adjustment methods. In this way, the technical solution achieves flexible adjustment of the position of the flow guide side plate 3 through the combination of hinge and sliding component 7. The flow guide side plate 3 is connected to both sides of the notch in the fixed frame 1 by hinge, allowing the flow guide side plate 3 to rotate and adjust its position. The first sliding groove 6 and the first sliding component 7 provided on the bottom plate 1a further restrict and adjust the position of the flow guide side plate 3 through sliding and pressing. This design allows for more flexible adjustment of the guide plate 3, enabling precise adjustments based on actual needs, thus solving the technical problem of inflexible adjustment of the guide plate position. Compared with existing technologies, this solution not only improves the flexibility and accuracy of adjustment but also simplifies the operation steps, enhancing the practicality and adaptability of the equipment.

[0033] In the specific design, the first sliding assembly 7 includes a first pressing block 7a and a fastening assembly passing through the first pressing block 7a and the first sliding groove 6. By tightening or loosening the fastening assembly, the first pressing block 7a is controlled to lock or slide along the first sliding groove 6 to adjust the opening angle of the guide side plate 3. The design of the first pressing block 7a allows it to slide freely within the first sliding groove 6, while tightening or loosening the fastening assembly locks or releases the first pressing block 7a. The fastening assembly can use common fasteners such as bolts and nuts. By tightening the bolt, the first pressing block 7a is pressed into a specific position in the first sliding groove 6, thereby fixing the guide side plate 3; by loosening the bolt, the first pressing block 7a can slide within the first sliding groove 6, thereby adjusting the position of the guide side plate 3. Furthermore, the shape and size of the first sliding groove 6 can be designed according to actual needs to ensure that the first pressing block 7a can slide smoothly and will not disengage from the groove. In a preferred embodiment, the first slide groove 6 can be designed as a straight line to facilitate the linear movement of the first pressure block 7a, thereby achieving precise adjustment of the opening and closing angle of the guide side plate 3. To this end, the technical solution of this application achieves flexible adjustment of the opening and closing angle of the guide side plate 3 through the cooperation of the first pressure block 7a and the screw assembly. The sliding and locking function of the first pressure block 7a along the first slide groove 6 allows the position of the guide side plate 3 to be precisely adjusted as needed, thus solving the problem of inconvenient adjustment of the opening and closing angle of the guide side plate. Compared with the prior art, this design not only improves the convenience of operation but also enhances the applicability and adjustment accuracy of the equipment. By tightening or loosening the screw assembly, users can quickly and accurately adjust the angle of the guide side plate 3 to adapt to different material characteristics and crushing requirements, thereby effectively extending the service life of the equipment and improving production efficiency.

[0034] like Figure 1-3As shown, the inner end of the guide plate 2 is hinged to the base plate 1a, and a pad 8 is provided below the guide plate 2. A second sliding groove 9 is provided on the base plate 1a outside the pad 8, and a second sliding component 10 is slidably disposed within the second sliding groove 9. The second sliding component 10 presses against the pad 8, and the pad 8 supports the guide plate 2 to adjust its pitch angle. The pad 8, in cooperation with the second sliding component 10, supports and adjusts the guide plate 2. The positional change of the pad 8 directly affects the pitch angle of the guide plate 2; therefore, by adjusting the position of the second sliding component 10, precise control of the angle of the guide plate 2 can be achieved. Specifically, the inner end of the guide plate 2 is hinged to the base plate 1a, allowing the guide plate 2 to adjust its pitch angle around the hinge point. A pad 8 is provided below the guide plate 2, and a second sliding groove 9 is provided on the base plate 1a outside the pad 8, within which the second sliding component 10 is slidably disposed. The second sliding component 10 presses against the pad 8, which in turn supports the guide plate 2, thereby adjusting the pitch angle of the guide plate 2. This technical solution, through the cooperation of the hinge, the pad 8, the slide groove 9, and the sliding component 10, solves the problem of inconvenient pitch angle adjustment of the guide plate, making the adjustment of the guide plate 2 more flexible and convenient. Compared with the prior art, the technical solution of this application, by introducing the pad 8 and the second sliding component 10, makes the pitch angle adjustment of the guide plate 2 simpler and more precise. In the prior art, the adjustment of the guide plate usually requires complex mechanical structures or manual operation, while this application, through the simple cooperation of the sliding component 10 and the pad 8, achieves fast and precise angle adjustment, significantly improving the convenience of operation and the accuracy of adjustment.

[0035] In a specific implementation, the second sliding assembly 10 includes a second pressure block 10a and a fastening assembly passing through the second pressure block 10a and the second slide groove 9. By tightening or loosening the fastening assembly, the second pressure block 10a is controlled to lock or slide along the second slide groove 9 to adjust the position of the pad 8. The second pressure block 10a is a component capable of moving along the slide groove 9, and its material can be metal or a high-strength composite material to ensure it does not deform under pressure. The fastening assembly typically includes a bolt and a nut; tightening the bolt fixes the position of the second pressure block 10a, while loosening the bolt allows the second pressure block 10a to slide along the slide groove 9. The second slide groove 9 is designed as a long strip, and its length and width are customized according to actual needs to ensure that the second pressure block 10a can slide smoothly and be precisely positioned.

[0036] This solution uses a screw-on fastening assembly to fix the second pressure block 10a at a certain position in the slide groove 9, thereby supporting the pad 8 and maintaining the pitch angle of the guide plate 2. When it is necessary to adjust the pitch angle of the guide plate 2, the screw-on fastening assembly is loosened, and the second pressure block 10a slides along the slide groove 9, causing the pad 8 to move, thereby changing the support position of the guide plate 2 and achieving precise adjustment of the pitch angle. Thus, the technical solution of this application, through the design of the second sliding assembly 10, achieves flexible adjustment of the pitch angle of the guide plate 2. Compared with the prior art, this solution is simple to operate, has high adjustment accuracy, can quickly adapt to different material characteristics and crushing requirements, and improves the versatility and efficiency of the equipment.

[0037] Furthermore, a lifting lug 11 is provided on the top of the side plate 1b for lifting the feed hopper. The lifting lug 11 can be implemented in the following ways: it can be fixed to the top of the side plate 1b by welding or bolting; the shape of the lifting lug 11 can be ring-shaped, hook-shaped, or other shapes suitable for lifting; the material of the lifting lug 11 can be high-strength steel to ensure its load-bearing capacity and durability during lifting. The design of the lifting lug 11 allows the feed hopper to be fixed during lifting, thereby improving stability during the lifting process. The presence of the lifting lug 11 makes the feed hopper safer and more reliable during transportation and installation, reducing the risk of equipment damage or safety accidents caused by unstable lifting. During jaw crusher maintenance, the jaw crusher feed hopper can also be lifted out using the lifting lug 11 for maintenance. This technical means effectively solves the problem of insufficient stability of the jaw crusher feed hopper during lifting. Therefore, compared with the prior art, the technical solution of this application significantly improves the stability and safety of the feed hopper during lifting by adding the lifting lug 11 design. The installation of lifting lug 11 not only simplifies the lifting operation but also reduces the risks that may occur during the lifting process, thereby improving the overall efficiency and reliability of the equipment.

[0038] like Figure 1-3As shown, reinforcing ribs 12 are provided on the rear panel 1c, side panels 1b, and two guide side panels 3 of the feed hopper. The reinforcing ribs 12 can be installed in various ways, such as by welding, riveting, or bolting, to fix them to the corresponding panels. The shape of the reinforcing ribs 12 can be straight, wavy, or other geometric shapes; the specific design can be optimized according to the actual stress conditions. Furthermore, the material of the reinforcing ribs 12 can be the same as the panel material, or a higher-strength material can be selected to further enhance the structural strength. By increasing the structural strength of these key components, the overall stability of the feed hopper is effectively improved. This design can withstand greater material impact forces, reducing deformation or damage caused by long-term use, thereby extending the service life of the equipment. Compared with the prior art, the technical solution of this application significantly enhances the durability and reliability of the feed hopper while maintaining its function, solving the problem of insufficient structural strength in the prior art.

[0039] like Figure 4 As shown, a base connecting plate 13 is provided at the lower end of the base plate 1a, and the base connecting plate 13 has connecting holes 14. The base connecting plate 13 is used to extend into the inlet of the jaw crusher and is fixed to the jaw crusher through the connecting holes 14. Specifically, the design of the base connecting plate 13 allows the feed hopper to be stably connected to the jaw crusher through the connecting holes 14. The shape and size of the base connecting plate 13 can be adjusted according to the specific structure of the jaw crusher inlet to ensure that it can be smoothly extended and fixed. The number and position of the connecting holes 14 can be designed according to actual needs, for example, multiple connecting holes 14 can be used to enhance the stability of the connection, or symmetrically distributed connecting holes 14 can be used to achieve uniform force distribution. In addition, the connecting holes 14 can be in the form of threaded holes or through holes, and can be fixed by bolts or other fasteners to ensure the firmness and detachability of the connection. In this regard, the technical solution solves the technical problem of fixing the feed hopper to the jaw crusher through the design of the base connecting plate 13 and the connecting holes 14. The base connecting plate 13 extends into the inlet of the jaw crusher and is fixed through the connecting hole 14, ensuring a stable connection between the feed hopper and the jaw crusher. This fixing method not only improves the overall stability of the equipment but also allows the feed hopper to effectively guide material into the crushing chamber, thereby enhancing the performance and reliability of the equipment. Compared with existing technologies, this design simplifies the installation process, enhances the reliability of the connection, and reduces the risk of equipment failure due to unstable connections. Example 2

[0040] like Figure 5As shown, this embodiment also relates to a jaw crusher, including the feed hopper described in Embodiment 1, which is installed at the inlet of the jaw crusher. The technical solution of this application solves the problem of the feed hopper's limited adjustment function by applying it to the jaw crusher. The guide side plate 3 and guide bottom plate 2 of the feed hopper can respectively adjust the diameter and feed inclination of the discharge port 4, thereby adapting to different material characteristics and crushing requirements, reducing local impact of materials on the jaw plates, and extending equipment life. Furthermore, the installation method of the feed hopper allows it to be adapted to different types of feeders or operating conditions, improving the equipment's versatility and process adaptability. Compared with the prior art, the technical solution of this application has higher flexibility and adaptability, and can effectively improve the performance and lifespan of the jaw crusher.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A feed hopper for a jaw crusher, characterized in that, include: - Fixed frame (1), which is enclosed by three sides to form a material cavity, and has a discharge port (4) at the bottom that communicates with the material cavity. - The bottom guide plate (2) and two side guide plates (3) are set in the notch of the fixed frame (1) to form the feed inlet (5); - The two guide side plates (3) are respectively hinged to the two sides of the notch of the fixed frame (1) and can rotate relative to the fixed frame (1) to adjust the diameter of the outlet (4); - The guide plate (2) is located between two guide side plates (3) and can adjust the pitch angle relative to the fixed frame (1) to control the feed inclination of the outlet (4).

2. The feed hopper of the jaw crusher according to claim 1, characterized in that, The fixed frame (1) includes: - The bottom plates on both sides (1a); - Side plates (1b) are fixed to the bottom plates (1a) on both sides respectively; - The rear panel (1c) is fixed to the rear end of the two side panels (1b).

3. The feed hopper of the jaw crusher according to claim 2, characterized in that, The flow guide side plate (3) is hinged to the two sides of the notch of the fixed frame (1). The bottom plate (1a) at the lower end of the flow guide side plate (3) is provided with a first sliding groove (6), and a first sliding component (7) is slidably provided in the first sliding groove (6). - The inner side of the flow guide plate (3) is pressed against the flow guide bottom plate (2), and the outer side is pressed against by the first sliding component (7) to restrict its position.

4. The feed hopper of the jaw crusher according to claim 3, characterized in that, The first sliding component (7) includes: -First pressing block (7a); - A screw assembly passing through the first pressure block (7a) and the first groove (6); - By tightening or loosening the screw assembly, the first pressure block (7a) is controlled to lock or slide along the first slide groove (6) to adjust the opening and closing angle of the guide side plate (3).

5. The feed hopper of the jaw crusher according to claim 2, characterized in that, The inner end of the flow guide plate (2) is hinged to the base plate (1a), and a pad plate (8) is provided below the flow guide plate (2). - A second sliding groove (9) is provided on the bottom plate (1a) on the outer side of the pad (8), and a second sliding component (10) is slidably provided in the second sliding groove (9); - The second sliding component (10) presses against the pad (8), and the pad (8) supports the guide plate (2) to adjust its pitch angle.

6. The feed hopper of the jaw crusher according to claim 5, characterized in that, The second sliding component (10) includes: -Second pressing block (10a); - The screw assembly passing through the second pressure block (10a) and the second slide (9); - By tightening or loosening the screw assembly, the second pressure block (10a) is controlled to lock or slide along the second groove (9) to adjust the position of the pad (8).

7. The feed hopper of the jaw crusher according to claim 2, characterized in that, The top of the side plate (1b) is provided with a lifting lug (11) for lifting the feed hopper.

8. The feed hopper of the jaw crusher according to claim 2, characterized in that, The rear panel (1c), the two side panels (1b) and the two flow guide side panels (3) are all provided with reinforcing ribs (12) to improve the overall structural strength.

9. The feed hopper of the jaw crusher according to claim 2, characterized in that, The lower end of the base plate (1a) is provided with a base connecting plate (13), and the base connecting plate (13) is provided with a connecting hole (14). - The base connecting plate (13) is used to extend into the inlet of the jaw crusher and is fixed to the jaw crusher through the connecting hole (14).

10. A jaw crusher, characterized in that, Includes the feed hopper as described in any one of claims 1 to 9, wherein the feed hopper is installed at the inlet of the jaw crusher.

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