Jaw crusher for mineral separation
By introducing a fixed circular plate and a locking tooth structure into the jaw crusher, combined with an adjustment mechanism, the stability problem of the transmission system under extreme working conditions was solved, enabling continuous operation and extended service life of the equipment.
Patent Information
- Application Number
- CN202520385436.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing jaw crushers lack redundant protection for key transmission components when dealing with complex and ever-changing mineral processing conditions, which leads to easy damage to the eccentric shaft, transmission system failure, and affects equipment stability and service life.
A jaw crusher for mineral processing was designed, which adopts a fixed circular plate and a locking tooth structure, combined with an adjustment mechanism and protective measures to ensure the stability and reliability of the transmission system. The adjustment mechanism includes an inclined locking plate, a threaded shaft and a locking groove to prevent damage to the eccentric shaft and reduce maintenance costs.
This effectively avoids damage to eccentric shafts and bearings, reduces maintenance costs and downtime, ensures continuous operation of the production line, and improves equipment stability and service life.
Smart Images

Figure CN223901917U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of jaw crusher, especially to a jaw crusher for ore dressing. BACKGROUND
[0002] With the acceleration of global industrialization process, the demand for various mineral resources continues to rise, and the ore dressing industry, as a key link of mineral resources development and utilization, is facing increasing production pressure. In many ore dressing processes, ore crushing is the primary and basic step, which aims to crush large chunks of raw ore into a suitable particle size for subsequent grinding and beneficiation processes. The jaw crusher, with its simple structure, reliable operation and large crushing ratio, has become a widely used primary crushing equipment in ore dressing plants, and almost participates in the crushing process of various metal and non-metallic minerals, laying the foundation for subsequent fine processing.
[0003] The mine jaw crusher on the market is mainly composed of a moving jaw of a frame. In actual ore dressing production, the properties of ores are complex and changeable, and large chunks of ore and hard foreign objects are often mixed in. When these abnormal materials enter the crushing cavity of the jaw crusher, they will instantly cause the equipment to withstand impact force and extrusion force far exceeding the design load, resulting in a huge overload risk at the connection between the eccentric shaft and the bearing. Due to the lack of redundant holding devices, the eccentric shaft is prone to displacement and movement under such extreme conditions, which damages the precise fit with the bearing, causes the bearing to bear uneven load, accelerates wear and tear, and even causes the entire transmission system to fail, resulting in sudden shutdown of the crusher. The traditional jaw crusher design mainly focuses on meeting the basic crushing function, pursuing a simple structure and low manufacturing cost, and lacks forward-looking consideration in dealing with complex and variable ore dressing conditions. The protection mechanism design for key transmission components under extreme conditions is weak, and the importance of redundant protection devices in improving the overall stability, reliability and service life of the equipment is not fully realized, so they are not included in the conventional design category. SUMMARY
[0004] To make up for the above shortcomings, the utility model provides a jaw crusher for ore dressing, aiming to improve the problem that the traditional jaw crusher design in the prior art mainly focuses on meeting the basic crushing function, pursues a simple structure and low manufacturing cost, and lacks forward-looking consideration in dealing with complex and variable ore dressing conditions, and the protection mechanism design for key transmission components under extreme conditions is weak, and the importance of redundant protection devices in improving the overall stability of the equipment is not fully realized.
[0005] In order to achieve the above object, the utility model discloses the following technical scheme: A kind of jaw crusher for mineral separation, including crusher box, the top right side of the crusher box is fixedly connected with transmission box, the inside rotation of the transmission box is connected with gear, the inner wall front side of the transmission box is rotatably connected with rotating shaft, the outer wall of the rotating shaft is fixedly connected with fixed circular plate, the outer wall top of the fixed circular plate is fixedly connected with engagement tooth, the outer wall bottom of the fixed circular plate is fixedly connected with push plate, the outer wall front side of the push plate is fixedly connected with spring, the other end of the spring is fixedly connected with fixed shaft two, the inner wall front side of the crusher box is provided with adjusting mechanism, and the adjusting mechanism is used to adjust the size of broken ore.
[0006] As further description of the above technical solution:
[0007] The adjusting mechanism includes inclined clamping plate, the outer wall left and right sides of the inclined clamping plate are slidably connected to the inner wall front side of the crusher box, the bottom of the inclined clamping plate is fixedly connected with fixed shaft one, the inner wall left and right sides of the fixed shaft one are both threadedly connected with threaded shaft, the outer walls of a plurality of threaded shafts are slidably connected with clamping plates, the other ends of the threaded shafts are fixedly connected with rotating plates, the outer walls left and right sides of the crusher box are both provided with clamping grooves, a plurality of clamping plates are clamped with clamping grooves, the top front side left and right ends of the inclined clamping plate are both fixedly connected with limit shafts, and a plurality of limit shafts slide on the top front side of the outer wall of the crusher box.
[0008] As further description of the above technical solution:
[0009] The inside of the gear is fixedly connected with transmission shaft, and the left and right ends of the transmission shaft are both fixedly connected with rotating wheels.
[0010] As further description of the above technical solution:
[0011] The middle part of the transmission shaft is fixedly connected with breaker, and the middle part of the inner wall of the crusher box is provided with broken tooth plate.
[0012] As further description of the above technical solution:
[0013] The top front side of the outer wall of the crusher box is fixedly connected with handle, and the outer wall of the handle is fixedly connected with anti-skid sleeve.
[0014] As further description of the above technical solution:
[0015] The outer wall front and back sides of the transmission box are both fixedly connected with soft pads, and the left and right sides of the outer wall of the crusher box are both fixedly connected with protective strips.
[0016] As further description of the above technical solution:
[0017] The outer wall top of the crusher box is fixedly connected with protective pads on the left and right sides, and the left and right sides of the outer wall of the crusher box are fixedly connected with protective strips near the edges.
[0018] As a further description of the above technical solutions:
[0019] The bottom of the crusher box is fixedly connected with bases at four corners, and the outer wall of the bases is provided with mounting holes.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1、the utility model discloses, when motor drive rotation wheel carries out rotation, the transmission shaft fixedly connected in the inner wall of rotation wheel will drive transmission box internal rotation connecting gear to carry out rotation, simultaneously, the rotation shaft is rotationally connected to the inner wall front side of transmission box, and the fixed circular plate is fixedly connected to the outer wall of rotation shaft, when the crusher breaks down, and the large ore is stuck, and the instantaneous torque of motor increases sharply, because the gear is uneven speed rotation, avoid the expensive eccentric shaft, bearing damage, reduce maintenance cost and downtime, guarantee the continuous operation of production line.
[0022] 2、the utility model discloses, in order to better adjust the size of the ore that needs to be crushed, the inclined clamping plate is slidably connected to the inner wall front side of the crusher box, the fixed shaft one is fixedly connected to the bottom of the inclined clamping plate, and the threaded shaft is threadedly connected to the inner wall left and right sides of the fixed shaft one, and the clamping groove is formed in the outer wall left and right sides of the crusher box, when the distance between the inclined clamping plate and the crushing tooth plate needs to be adjusted, the size of the ore crushed by the crusher is adjusted, so that the use requirement is met. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a front side perspective view of the transmission box of the jaw crusher for mineral separation provided by the utility model;
[0024] Figure 2 It is a partial structure diagram of the clamping groove of the jaw crusher for mineral separation provided by the utility model;
[0025] Figure 3 It is a partial structure diagram of the gear of the jaw crusher for mineral separation provided by the utility model;
[0026] Figure 4 It is a partial structure display diagram of the inclined clamping plate of the jaw crusher for mineral separation provided by the utility model;
[0027] Figure 5 It is a partial structure diagram of the threaded shaft of the jaw crusher for mineral separation provided by the utility model.
[0028] LEGEND:
[0029] 1, crusher box; 2, adjusting mechanism; 201, inclined clamping plate; 202, fixed shaft one; 203, threaded shaft; 204, rotating plate; 205, clamping plate; 206, clamping groove; 207, limiting shaft; 3, transmission box; 4, gear; 5, rotating shaft; 6, fixed circular plate; 7, clamping tooth; 8, actuating plate; 9, spring; 10, fixed shaft two; 11, transmission shaft; 12, crusher; 13, crushing tooth plate; 14, rotating wheel; 15, handle; 16, anti-skid sleeve; 17, protective pad; 18, protective strip; 19, soft pad; 20, protective strip; 21, base; 22, mounting hole. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0031] Please refer to the drawings in the embodiments of the utility model Figure 1 - the drawings in the embodiments of the utility model Figure 3 The utility model provides an embodiment: a jaw crusher for ore dressing, including crusher box 1, the top right side of crusher box 1 is fixedly connected with transmission box 3, the inside rotationally connected with gear 4 of transmission box 3, the inner wall front side of transmission box 3 is rotationally connected with rotating shaft 5, the outer wall of rotating shaft 5 is fixedly connected with fixed circular plate 6, the outer wall top of fixed circular plate 6 is fixedly connected with clamping tooth 7, the outer wall of rotating shaft 5 is fixedly connected with a fixed circular plate 6, and the design of this fixed circular plate 6 makes the structure of the crusher more stable, the outer wall top position of fixed circular plate 6 is fixedly connected with a clamping tooth 7, and the clamping tooth 7 works in cooperation with gear 4, to ensure that the crushing process proceeds smoothly, the outer wall bottom of fixed circular plate 6 is fixedly connected with actuating plate 8, the outer wall front side of actuating plate 8 is fixedly connected with spring 9, the other end of spring 9 is fixedly connected with fixed shaft two 10, the inner wall front side of crusher box 1 is provided with adjusting mechanism 2, and adjusting mechanism 2 is used for adjusting the size of crushed ore.
[0032] Specifically, the top right position of the crusher box 1 is designed to be fixedly connected with a transmission box 3, the transmission box 3 is rotatably connected with a gear 4 inside, the gear 4 is one of the key components of the whole crusher operation, further, the inner wall front side of the transmission box 3 is rotatably connected with a rotating shaft 5, the rotating shaft 5 plays a crucial role in the working process of the crusher, the outer wall bottom position of the fixed circular plate 6 is fixedly connected with a toggle plate 8, the design of the toggle plate 8 enables the crusher to adjust the crushing degree as needed, the outer wall front side of the toggle plate 8 is fixedly connected with a spring 9, the spring 9 provides the necessary elastic support for the crusher, in addition, the other end of the spring 9 is fixedly connected with a fixed shaft two 10, the fixed shaft two 10 works with the transmission box 3 to ensure the stable operation of the crusher, finally, the inner wall front side of the crusher box 1 is provided with an adjusting mechanism 2, the adjusting mechanism 2 allows the operator to adjust according to the type of crushed ore and the size required to be crushed, so as to achieve the best crushing effect.
[0033] Please refer to the attached drawings Figure 4 - attached drawings Figure 5 The adjusting mechanism 2 includes an inclined clamping plate 201, the outer wall left and right sides of the inclined clamping plate 201 are slidably connected to the inner wall front side of the crusher box 1, the bottom of the inclined clamping plate 201 is fixedly connected with a fixed shaft one 202, the inner wall left and right sides of the fixed shaft one 202 are threadedly connected with threaded shafts 203, the outer walls of the plurality of threaded shafts 203 are slidably connected with clamping plates 205, so that the rotating plate 204 can control the position of the clamping plate 205 through the rotation of the threaded shaft 203, on the outer wall left and right sides of the crusher box 1, clamping grooves 206 are respectively formed, the clamping grooves 206 are clamped with the clamping plates 205 to ensure the stable position of the clamping plates 205 on the crusher box 1, the other end of the threaded shaft 203 is fixedly connected with the rotating plate 204, the outer wall left and right sides of the crusher box 1 are provided with clamping grooves 206, a plurality of clamping plates 205 are clamped with the clamping grooves 206, the top front left and right ends of the inclined clamping plate 201 are fixedly connected with limiting shafts 207, and the plurality of limiting shafts 207 slide on the outer wall front side top of the crusher box 1.
[0034] Specifically, the bottom of the inclined clamping plate 201 is designed to be fixedly connected with the fixed shaft one 202, the inner wall left and right sides of the fixed shaft one 202 are provided with threads to be threadedly connected with the threaded shafts 203, the outer walls of the threaded shafts 203 are slidably connected with a plurality of clamping plates 205, so that the clamping plates 205 can move on the threaded shafts 203, in order to further ensure the stability of the inclined clamping plate 201, the top front left and right ends thereof are fixedly connected with limiting shafts 207, the limiting shafts 207 can slide on the outer wall front side top of the crusher box 1, thereby limiting the movement range of the inclined clamping plate 201 and ensuring the correct position thereof in the crusher box 1.
[0035] Please refer to the attached Figure 1 - attached Figure 3 The inside of the gear 4 is fixedly connected with a transmission shaft 11, the left and right ends of the transmission shaft 11 are fixedly connected with rotating wheels 14, the middle part of the transmission shaft 11 is fixedly connected with a crusher 12, the inner wall of the crusher box 1 is provided with a crushing tooth plate 13, the outer wall of the crusher box 1 is fixedly connected with a handle 15 on the top front side, the crushing tooth plate 13 and the crusher 12 work together to efficiently crush the materials entering the crusher box 1. In order to facilitate operation, the outer wall of the crusher box 1 is fixedly connected with a handle 15 on the top front side, the user can move or operate the crusher by holding the handle 15, the outer wall of the handle 15 is fixedly connected with a non-slip sleeve 16;
[0036] Specifically, the gear 4 is designed to be fixedly connected with a transmission shaft 11 inside, which ensures stable connection between the gear 4 and the transmission shaft 11, the left and right ends of the transmission shaft 11 are fixedly connected with rotating wheels 14, which can effectively transmit power to the transmission shaft 11, the middle part of the transmission shaft 11 is fixedly connected with a crusher 12, which is a key component for crushing materials, in order to improve safety and comfort during use, the outer wall of the handle 15 is also fixedly connected with a non-slip sleeve 16, which can effectively prevent the user's hand from slipping during operation, thereby ensuring the safety of operation.
[0037] Please refer to the attached Figure 1 - attached Figure 3 The outer wall of the transmission box 3 is fixedly connected with soft pads 19 on the front and rear sides, the outer wall of the crusher box 1 is fixedly connected with protective strips 18 on the left and right sides, the outer wall of the crusher box 1 is fixedly connected with protective pads 17 on the top left and right sides, the outer wall of the crusher box 1 is fixedly connected with protective strips 20 near the edges on the left and right sides, the bottom of the crusher box 1 is fixedly connected with bases 21 at the four corners, in order to further enhance the protection performance of the crusher box 1, the outer wall of the crusher box 1 is fixedly connected with protective strips 20 near the edges on the left and right sides, which can effectively protect the edges of the crusher box 1 from being damaged, in order to ensure the stability and durability of the crusher box 1, the bottom of the crusher box 1 is fixedly connected with bases 21 at the four corners, which can support the entire crusher box 1 and prevent it from tilting or moving during work, the outer wall of the bases 21 is provided with mounting holes 22;
[0038] Specifically, the soft pads 19 are fixedly connected to the front and rear sides of the outer wall of the transmission box 3, which can reduce the vibration and noise generated during the operation of the transmission box 3, and can also protect the transmission box 3 from being impacted by external hard objects. In addition, the protective strips 18 are fixedly connected to the left and right sides of the outer wall of the crusher box 1, which can effectively prevent the debris generated during the operation of the crusher from splashing, thereby protecting the safety of the operators. In order to facilitate installation and maintenance, the mounting holes 22 are formed in the outer wall of the plurality of bases 21, through which the crusher box 1 can be firmly installed on the ground to ensure stable operation.
[0039] Working principle: when the motor drives the rotating wheel 14 to rotate, the transmission shaft 11 fixedly connected to the inner wall of the rotating wheel 14 drives the rotatingly connected gear 4 in the transmission box 3 to rotate, and the rotating shaft 5 is rotatingly connected to the front side of the inner wall of the transmission box 3, and the fixed circular plate 6 is fixedly connected to the outer wall of the rotating shaft 5. When the crusher fails, the large ore is stuck, and the instantaneous torque of the motor increases sharply, due to the uneven rotation of the gear 4, the spring 9 pulls the clamping teeth 7 on the top of the fixed circular plate 6, so that the clamping teeth 7 can be firmly clamped on the outer wall of the rotating shaft 5, avoiding damage to the expensive eccentric shaft and bearing, reducing maintenance cost and downtime, and ensuring continuous operation of the production line.
[0040] In order to better adjust the size of the ore to be crushed, the inclined clamping plate 201 is slidingly connected to the front side of the inner wall of the crusher box 1, the fixed shaft one 202 is fixedly connected to the bottom of the inclined clamping plate 201, the threaded shaft 203 is threadedly connected to the left and right sides of the inner wall of the fixed shaft one 202, and the clamping grooves 206 are formed in the left and right sides of the outer wall of the crusher box 1. When it is necessary to adjust the distance between the inclined clamping plate 201 and the crushing tooth plate 13, the clamping plate 205 slidingly connected to the outer wall of the threaded shaft 203 is clamped on the different clamping grooves 206 formed in the left and right sides of the outer wall of the crusher box 1 by rotating the rotating plate 204, so as to adjust the size of the crushed ore, thereby meeting the use requirements.
[0041] Finally, it should be pointed out that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.
Claims
1. A jaw crusher for beneficiation, comprising a crusher housing (1), characterized in that: The top right side of the crusher box (1) is fixedly connected with a transmission box (3), the inside of the transmission box (3) is rotatably connected with a gear (4), the inner wall of the transmission box (3) is rotatably connected with a rotating shaft (5), the outer wall of the rotating shaft (5) is fixedly connected with a fixed circular plate (6), the outer wall top of the fixed circular plate (6) is fixedly connected with a clamping tooth (7), the outer wall bottom of the fixed circular plate (6) is fixedly connected with a push plate (8), the outer wall front side of the push plate (8) is fixedly connected with a spring (9), the other end of the spring (9) is fixedly connected with a fixed shaft two (10), the inner wall front side of the crusher box (1) is provided with an adjusting mechanism (2), and the adjusting mechanism (2) is used for adjusting the size of the crushed ore.
2. A jaw crusher for mineral processing according to claim 1, characterized in that The adjusting mechanism (2) comprises an inclined clamping plate (201), the outer wall left and right sides of the inclined clamping plate (201) are slidably connected to the inner wall front side of the crusher box (1), the bottom of the inclined clamping plate (201) is fixedly connected with a fixed shaft one (202), the inner wall left and right sides of the fixed shaft one (202) are both threadedly connected with a threaded shaft (203), the outer wall of a plurality of threaded shafts (203) is slidably connected with a clamping plate (205), the other end of the threaded shaft (203) is fixedly connected with a rotating plate (204), the outer wall left and right sides of the crusher box (1) are both provided with a clamping groove (206), a plurality of clamping plates (205) and clamping grooves (206) are clamped, the top front side left and right ends of the inclined clamping plate (201) are both fixedly connected with a limiting shaft (207), and a plurality of limiting shafts (207) slide on the outer wall front side top of the crusher box (1).
3. A jaw crusher for mineral processing according to claim 1, characterized in that: The inside of the gear (4) is fixedly connected with a transmission shaft (11), and the left and right ends of the transmission shaft (11) are both fixedly connected with a rotating wheel (14).
4. A jaw crusher for mineral processing according to claim 3, characterized in that: The middle part of the transmission shaft (11) is fixedly connected with a crusher (12), and the inner wall middle part of the crusher box (1) is provided with a crushing tooth plate (13).
5. A jaw crusher for mineral processing according to claim 1, characterized in that: The outer wall top front side of the crusher box (1) is fixedly connected with a handle (15), and the outer wall of the handle (15) is fixedly connected with an anti-skid sleeve (16).
6. A jaw crusher for mineral processing according to claim 1, characterized in that: The outer wall front and back sides of the transmission box (3) are both fixedly connected with a soft pad (19), and the outer wall left and right sides of the crusher box (1) are both fixedly connected with a protection strip (18).
7. A mineral processing jaw crusher as claimed in claim 1, characterized in that: The outer wall top left and right sides of the crusher box (1) are both fixedly connected with a protection pad (17), and the outer wall left and right sides of the crusher box (1) are both fixedly connected with a protection strip (20) near the edge.
8. A jaw crusher for mineral processing according to claim 1, characterized in that: The bottom four corners of the crusher box (1) are both fixedly connected with a base (21), and the outer wall of a plurality of bases (21) is both provided with a mounting hole (22).