A jaw crusher for crushing silica sand
Patent Information
- Application Number
- CN202520488929.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-03-20
AI Technical Summary
[0004]颚式破碎机主要是通过偏心轴带动动颚板前后上下做往复运动,并向定颚板进行重复挤压,从而实现对硅砂的破碎,由于颚式破碎机破碎后的硅砂呈现为不规则的形状,同时破碎后的硅砂大小不一,导致破碎后的硅砂容易堆积在动颚板与定颚板之间,影响颚式破碎机的下料,需停机由工作人员进行疏通才能继续进行破碎作业,大大影响颚式破碎机的破碎效率
[0016] 1. The device's movable jaw plate moves up and down in a reciprocating motion, which in turn pulls the connecting rod, the adjusting rod, and the sliding sleeve. This, in turn, pulls the unblocking rod, vertically lifting and unblocking the silica sand accumulated between the movable and fixed jaw plates. The up-and-down movement of the unblocking rod directly lifts the accumulated silica sand, breaking its compacted state and making it loose. This improves the flowability of the silica sand between the movable and fixed jaw plates, achieving a preliminary unblocking effect.
Smart Images

Figure CN224656834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silica sand crushing technology, and in particular to a jaw crusher for silica sand crushing. Background Technology
[0002] Silica sand, also known as silica sand, is a non-metallic mineral aggregate with quartz as its main mineral component. It is sand particles made by crushing and processing quartz stone. Its main component is silicon dioxide, and other impurities include oxides of iron, aluminum, calcium and magnesium. Silica sand has relatively high hardness and density, which gives it good wear resistance and chemical stability. These properties make silica sand widely used in many fields.
[0003] The working principle of a jaw crusher is mainly based on compression and shearing. It consists of a fixed jaw plate and a movable jaw plate. The movable jaw plate is connected to the drive device through an eccentric shaft, which enables it to move up and down. When the movable jaw plate moves downward, the silica sand is placed in the crushing chamber and subjected to the extrusion force between the fixed jaw plate and the movable jaw plate. As the gap between the jaw plates gradually narrows, the silica sand is subjected to increasing pressure and is eventually crushed into smaller particles.
[0004] Jaw crushers primarily use an eccentric shaft to drive the moving jaw plate in a reciprocating motion, repeatedly squeezing it against the fixed jaw plate to crush silica sand. However, the silica sand produced by a jaw crusher is irregular in shape and varies in size, causing it to easily accumulate between the moving and fixed jaw plates. This affects the material feeding of the jaw crusher, requiring the machine to be stopped and cleared by staff before crushing operations can resume, significantly impacting the crushing efficiency of the jaw crusher. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the shortcomings of the existing technology, this utility model provides a jaw crusher for crushing silica sand, which solves the technical problems mentioned in the background art.
[0007] Technical solution
[0008] To solve the above technical problems, the present invention provides the following technical solution: a jaw crusher for crushing silica sand, comprising a crusher body, two mounting seats 1 fixedly installed on the top of the crusher body, an eccentric shaft rotatably connected between the two mounting seats 1, a connecting piece rotatably connected to the outer wall of the eccentric shaft, a movable jaw plate fixedly connected to the side of the connecting piece away from the eccentric shaft, a fixed jaw plate fixedly installed on the inner wall of the crusher body, and a dredging component provided inside the crusher body;
[0009] The unblocking component includes an adjusting rod, with connecting rod 1 hinged to both ends of the adjusting rod. The end of connecting rod 1 away from the adjusting rod is hinged to the inner cavity wall of the crusher body. A sliding sleeve is slidably connected to the outer wall of the adjusting rod. Several unblocking rods are fixedly connected to the top of the sliding sleeve. A second connecting rod is hinged to the outer wall of the sliding sleeve. The end of the second connecting rod away from the sliding sleeve is hinged to the inner cavity wall of the crusher body.
[0010] To solve the above technical problems, the present invention provides the following technical solution: a sliding groove is provided through the outer surface of the crusher body, the outer wall of the adjusting rod is slidably connected to the inner wall of the sliding groove, and adjusting plates are fixedly connected to both ends of the adjusting rod.
[0011] To solve the above-mentioned technical problems, the present invention provides the following technical solution: two mounting seats are fixedly connected to the outer surface of the crusher body, and a sliding rod is fixedly connected between the two mounting seats. The inner wall of the adjusting plate is slidably connected to the outer wall of the sliding rod.
[0012] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a drive motor is fixedly installed on the outer surface of the crusher body, a drive wheel is fixedly connected to the output end of the drive motor, a pulley is fixedly connected to one end of the eccentric shaft, and a transmission belt is used to drive the drive wheel and the pulley.
[0013] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a flywheel is fixedly connected to the end of the eccentric shaft away from the pulley, and a vibration damper is fixedly installed on the inner wall of the crusher body.
[0014] To solve the above-mentioned technical problems, the present invention provides the following technical solution: the end of the shock absorber away from the inner cavity wall of the crusher body is fixedly connected to the side of the moving jaw plate away from the fixed jaw plate, and the bottom of the inner cavity of the crusher body is provided with a discharge port.
[0015] The beneficial effects of this utility model are:
[0016] 1. The device's movable jaw plate moves up and down in a reciprocating motion, which in turn pulls the connecting rod, the adjusting rod, and the sliding sleeve. This, in turn, pulls the unblocking rod, vertically lifting and unblocking the silica sand accumulated between the movable and fixed jaw plates. The up-and-down movement of the unblocking rod directly lifts the accumulated silica sand, breaking its compacted state and making it loose. This improves the flowability of the silica sand between the movable and fixed jaw plates, achieving a preliminary unblocking effect.
[0017] 2. As the adjusting rod of the device moves up and down, the connecting rod at the bottom of the sliding sleeve pulls the sliding sleeve on the adjusting rod, thereby causing the unblocking rod on the sliding sleeve to move laterally between the moving jaw plate and the fixed jaw plate. This allows for lateral sliding unblocking of the silica sand accumulated between the moving jaw plate and the fixed jaw plate, further loosening and dispersing the accumulated silica sand, enhancing the unblocking effect, and ensuring smooth flow of the crushed silica sand between the moving jaw plate and the fixed jaw plate. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0019] Figure 1 This is a schematic diagram of the overall structure of a jaw crusher for crushing silica sand according to this utility model.
[0020] Figure 2 This is a schematic diagram of the fixed jaw plate structure of a jaw crusher for crushing silica sand according to this utility model.
[0021] Figure 3 This is a schematic diagram of the internal structure of a jaw crusher for crushing silica sand according to this utility model.
[0022] Figure 4 This is a schematic diagram of the unblocking component of a jaw crusher for crushing silica sand according to this utility model.
[0023] Figure 5 This utility model relates to a jaw crusher for crushing silica sand. Figure 1 Enlarged structural diagram at point A in the middle.
[0024] In the diagram: 1. Crusher body; 2. Pulley; 3. Eccentric shaft; 4. Connecting piece; 5. Mounting seat one; 6. Flywheel; 7. Fixed jaw plate; 8. Moving jaw plate; 9. Drive belt; 10. Vibration damper; 11. Adjusting rod; 12. Adjusting plate; 13. Sliding sleeve; 14. Connecting rod one; 15. Unblocking rod; 16. Connecting rod two; 17. Mounting seat two; 18. Sliding rod; 19. Slide groove; 20. Discharge port. Detailed Implementation
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] Example 1
[0027] Reference Figure 1-5This is the first embodiment of the present invention, which provides a jaw crusher for crushing silica sand, including a crusher body 1. Two mounting seats 5 are fixedly installed on the top of the crusher body 1. An eccentric shaft 3 is rotatably connected between the two mounting seats 5. A connecting piece 4 is rotatably connected to the outer wall of the eccentric shaft 3. A movable jaw plate 8 is fixedly connected to the side of the connecting piece 4 away from the eccentric shaft 3. A fixed jaw plate 7 is fixedly installed on the inner wall of the crusher body 1. A clearing component is provided inside the crusher body 1. The clearing component includes an adjusting rod 11. Both ends of the adjusting rod 11 are hinged to a connecting rod 14. The end of the connecting rod 14 away from the adjusting rod 11 is hinged to the inner wall of the crusher body 1.
[0028] A sliding sleeve 13 is slidably connected to the outer wall of the adjusting rod 11. Several unblocking rods 15 are fixedly connected to the top of the sliding sleeve 13. A connecting rod 16 is hinged to the outer wall of the sliding sleeve 13. The end of the connecting rod 16 away from the sliding sleeve 13 is hinged to the inner wall of the crusher body 1. A sliding groove 19 is opened through the outer surface of the crusher body 1. The outer wall of the adjusting rod 11 is slidably connected to the inner wall of the sliding groove 19. Adjusting plates 12 are fixedly connected to both ends of the adjusting rod 11. Two mounting seats 17 are fixedly connected to the outer surface of the crusher body 1. A sliding rod 18 is fixedly connected between the two mounting seats 17. The inner wall of the adjusting plate 12 is slidably connected to the outer wall of the sliding rod 18.
[0029] Example 2
[0030] Reference Figure 1-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a drive motor is fixedly installed on the outer surface of the crusher body 1, a drive wheel is fixedly connected to the output end of the drive motor, a pulley 2 is fixedly connected to one end of the eccentric shaft 3, a transmission belt 9 is connected between the drive wheel and the pulley 2, and a flywheel 6 is fixedly connected to the end of the eccentric shaft 3 away from the pulley 2. The function of the flywheel 6 is to store energy in the idle state when the moving jaw plate 8 moves backward away from the fixed jaw plate 7, and to release the stored energy during the working stroke of crushing silica sand, thereby making the load of the motor more uniform, improving working efficiency and reducing energy consumption;
[0031] A vibration damper 10 is fixedly installed on the inner wall of the crusher body 1. The vibration damper 10 is mainly composed of a piston and a buffer spring to form a buffer. Under the action of the piston and the spring, when the piston moves, it will dynamically change through the spring and eliminate vibration through the damping fluid. The vibration damper can effectively convert the impact force into heat energy, thereby reducing the kinetic energy of the vibration, thus greatly reducing the amplitude of the vibration of the moving jaw plate 8, and reducing the impact and vibration generated during the crushing process. The end of the vibration damper 10 away from the inner wall of the crusher body 1 is fixedly connected to the side of the moving jaw plate 8 away from the fixed jaw plate 7. The bottom of the inner cavity of the crusher body 1 is provided with a discharge port 20.
[0032] The remaining structure is the same as that in Example 1.
[0033] During use, the operator first puts the silica sand into the crusher body 1 between the fixed jaw plate 7 and the movable jaw plate 8, starts the drive motor, and the drive wheel at the output end of the drive motor starts to rotate. The drive wheel drives the pulley 2 to rotate through the transmission belt 9, which in turn drives the eccentric shaft 3 to rotate. While the eccentric shaft 3 rotates, it drives the movable jaw plate 8 to make a back-and-forth, up-and-down reciprocating motion and repeatedly squeezes it against the fixed jaw plate 7. The reciprocating motion of the movable jaw plate 8, together with the fixed jaw plate 7, repeatedly squeezes the silica sand until it is crushed. The crushed silica sand falls downward and is discharged from the discharge port 20. A collection frame or conveying component can be set at the bottom of the discharge port 20 to collect the crushed silica sand or process it for the next step.
[0034] During use, the moving jaw plate 8 reciprocates up and down, which in turn pulls the connecting rod 14 to reciprocate up and down, pulls the adjusting rod 11 to reciprocate up and down, pulls the sliding sleeve 13 to reciprocate up and down, and thus pulls the unblocking rod 15 to reciprocate up and down. This vertically lifts and unblocks the silica sand accumulated between the moving jaw plate 8 and the fixed jaw plate 7. While the adjusting rod 11 reciprocates up and down, it works in conjunction with the connecting rod 16 hinged at the bottom of the sliding sleeve 13 to pull the sliding sleeve 13 to move on the adjusting rod 11. This causes the unblocking rod 15 on the sliding sleeve 13 to move laterally between the moving jaw plate 8 and the fixed jaw plate 7, thus sliding and unblocking the silica sand accumulated between the moving jaw plate 8 and the fixed jaw plate 7.
[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A jaw crusher for crushing silica sand, characterized in that: The crusher includes a crusher body, on the top of which two mounting seats are fixedly installed. An eccentric shaft is rotatably connected between the two mounting seats. A connecting piece is rotatably connected to the outer wall of the eccentric shaft. A movable jaw plate is fixedly connected to the side of the connecting piece away from the eccentric shaft. A fixed jaw plate is fixedly installed on the inner wall of the crusher body. A dredging component is provided inside the crusher body. The unblocking assembly includes an adjusting rod, with connecting rod 1 hinged to both ends of the adjusting rod. The end of the connecting rod 1 away from the adjusting rod is hinged to the inner cavity wall of the crusher body. A sliding sleeve is slidably connected to the outer wall of the adjusting rod. Several unblocking rods are fixedly connected to the top of the sliding sleeve. A second connecting rod is hinged to the outer wall of the sliding sleeve. The end of the second connecting rod away from the sliding sleeve is hinged to the inner cavity wall of the crusher body.
2. The jaw crusher for silica sand crushing according to claim 1, characterized in that: A sliding groove is provided through the outer surface of the crusher body, and the outer wall of the adjusting rod is slidably connected to the inner wall of the sliding groove. Adjusting plates are fixedly connected to both ends of the adjusting rod.
3. The jaw crusher for silica sand crushing according to claim 2, characterized in that: Two mounting seats are fixedly connected to the outer surface of the crusher body, and a sliding rod is fixedly connected between the two mounting seats. The inner wall of the adjusting plate is slidably connected to the outer wall of the sliding rod.
4. The jaw crusher for silica sand crushing according to claim 1, characterized in that: A drive motor is fixedly installed on the outer surface of the crusher body. A drive wheel is fixedly connected to the output end of the drive motor. A pulley is fixedly connected to one end of the eccentric shaft. A transmission belt is connected between the drive wheel and the pulley.
5. The jaw crusher for silica sand crushing according to claim 1, characterized in that: A flywheel is fixedly connected to the end of the eccentric shaft away from the pulley, and a vibration damper is fixedly installed on the inner wall of the crusher body.
6. The jaw crusher for silica sand crushing according to claim 5, characterized in that: The end of the shock absorber away from the inner cavity wall of the crusher body is fixedly connected to the side of the moving jaw plate away from the fixed jaw plate, and the bottom of the inner cavity of the crusher body is provided with a discharge port.