Crusher with rotating shaft convenient to replace

Abstract

The utility model relates to the technical field of crushers, in particular to a crusher convenient for replacing a rotating shaft, which comprises a toggle plate seat, a front toggle plate, a rear toggle plate, a movable jaw part and an adjusting seat, two ends of the front toggle plate are respectively hinged with the toggle plate seat and the movable jaw part through rotating shafts, and two ends of the rear toggle plate are respectively hinged with the toggle plate seat and the adjusting seat through rotating shafts; limiting sleeves are arranged at the two ends of the rotating shaft, grooves matched with the limiting sleeves are formed in the toggle plate seat, the movable jaw part and the adjusting seat respectively, and the limiting sleeves are fixed in the grooves through fixing pieces. By means of the crusher, the problem that an existing crusher is difficult to maintain can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a crusher with a rotating shaft that is easy to replace. Background Art

[0002] A jaw crusher, commonly known as a jaw crusher or tiger's mouth, consists of two jaw plates, a movable jaw and a stationary jaw, forming a crushing chamber that simulates the movement of an animal's jaws to crush materials. Jaw crushers can be divided into two basic types based on the motion of the movable jaw: simple swing jaw crushers and compound swing jaw crushers. A simple swing jaw crusher is one in which the movable jaw swings in a simple circular arc around a fixed support on the crusher frame.

[0003] The simple swing jaw crusher mainly consists of a frame, an eccentric shaft, a large pulley, a flywheel, a movable jaw, side guards, a toggle plate back seat, a gap adjustment screw, a return spring, a fixed jaw plate, and a movable jaw plate. The eccentric shaft is also connected to a connecting rod, and the left and right sides of the bottom of the connecting rod are fixedly connected to the front and rear toggle plates.

[0004] In the prior art, there are generally two ways to connect the front bracket and the rear bracket:

[0005] 1. Both ends of the toggle plate are supported in U-shaped grooves. For example, the technical solution proposed in the prior art is the Chinese utility model patent document with publication number CN212040603U and publication date December 1, 2020.

[0006] 2. The two ends of the elbow plate are respectively hinged to the remaining components. For example, the Chinese utility model patent document with publication number CN210646539U and publication date June 2, 2020 proposed in the prior art. The technical solution disclosed in this patent document is as follows: a double-acting jaw crusher, wherein the front side of the elbow plate seat is hinged to one end of the front elbow plate, and the other end of the front elbow plate is hinged to the lower end of the first movable jaw; the rear side of the elbow plate seat is hinged to one end of the rear elbow plate, and the other end of the rear elbow plate is hinged to the adapter seat. When the elbow plate is hinged to the movable jaw or the bottom of the connecting rod or the adjustment seat through the rotating shaft, the shaft hole on the movable jaw or the bottom of the connecting rod or the adjustment seat is a full-circular structure. After the rotating shaft is assembled into the shaft hole, the rotating shaft is a closed structure.

[0007] With frequent use, both solutions are prone to wear or damage to the toggle plate or shaft, requiring replacement or repair. This requires disassembly of the entire assembly, a tedious and time-consuming task, sometimes even impossible to repair, increasing equipment downtime and maintenance costs. Summary of the Invention

[0008] In order to solve the above technical problems, the utility model proposes a crusher with an easy-to-replace rotating shaft, which can effectively solve the problem of difficult maintenance of existing crushers.

[0009] The utility model is realized by adopting the following technical solutions:

[0010] A crusher that is easy to replace a rotating shaft, comprising a toggle plate seat, a front toggle plate, a rear toggle plate, a movable jaw and an adjustment seat; the two ends of the front toggle plate are respectively hinged to the toggle plate seat and the movable jaw through a rotating shaft, and the two ends of the rear toggle plate are respectively hinged to the toggle plate seat and the adjustment seat through a rotating shaft; limit sleeves are provided at both ends of the rotating shaft, and grooves matching the limit sleeves are respectively provided on the toggle plate seat, the movable jaw and the adjustment seat, and the limit sleeves are fixed in the grooves by fixing parts.

[0011] The invention also includes a guide portion communicated with the groove.

[0012] It also includes a mounting seat connected to the movable jaw part, and the groove is arranged on the mounting seat.

[0013] The mounting seat is provided with a card slot.

[0014] The frame of the crusher is provided with an avoidance groove for avoiding the front toggle plate.

[0015] The limiting sleeve is stepped and includes a connected connection portion and a pressure plate; the pressure plate is configured to cooperate with the fixing member; a through hole matching the rotating shaft is provided in the limiting sleeve.

[0016] The rotating shaft includes a rotating shaft body and flat square structures located at both ends of the rotating shaft body; the through hole includes a first through hole and a second through hole that are connected to each other, the first through hole matches the rotating shaft body, and the second through hole matches the flat square structure.

[0017] It also includes a driving component for driving the adjustment seat to move back and forth.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In the present invention, both ends of the rotating shaft are set in the groove by a limit sleeve and fixed in the groove by a fixing piece. Due to the groove structure, the rotating shaft can be put in or taken out from the opening of the groove. When the rotating shaft is worn or needs to be replaced, the maintenance personnel only need to remove the fixing piece and can easily take out the rotating shaft from the opening of the groove for replacement or repair. The maintenance or inspection work can be carried out more quickly and accurately without the need to dismantle the entire assembly. The worn parts can be replaced in time, avoiding the problem of complete deformation caused by wear, significantly reducing the complexity and time required for maintenance, and improving the maintenance efficiency of the equipment, thereby reducing the downtime and maintenance costs of the equipment.

[0020] 2. In the present invention, the setting of the guide portion plays a good guiding role in the installation and disassembly of the rotating shaft, making the installation and disassembly more convenient.

[0021] 3. The installation of the mounting seat facilitates the replacement of the entire crusher later. In the prior art, the original structure connected to the movable jaw is difficult to disassemble. The original structure includes a U-shaped groove or a matching rotating shaft and bearings. The installation of the mounting seat can improve the existing crusher by simply installing the mounting seat above the original structure.

[0022] 4. When improving the existing crusher, the position of the groove on the movable jaw plate moves upward, which drives the front toggle plate to move upward to a certain extent. The utility model can avoid the collision between the front toggle plate and the frame by providing an avoidance groove on the frame.

[0023] 5. The limit sleeve is stepped, making installation more convenient.

[0024] 6. The rotating shaft includes a rotating shaft body and flat square structures located at both ends of the rotating shaft body. The second through hole matches the flat square structure, so that the matching relationship between the limit sleeve and the rotating shaft is better.

[0025] 7. The setting of the driving component can drive the adjustment seat to move back and forth, making it easier to control the size of the crusher opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, wherein:

[0027] Figure 1 This is a schematic diagram of the structure of the crusher during modification in this utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of the crusher during modification in this utility model. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the structure of the crusher during modification in this utility model. Figure 3 ;

[0030] Figure 4 This is a structural diagram of the toggle plate seat in the utility model;

[0031] Figure 5 This is a side structural diagram of the toggle plate seat in the present invention;

[0032] Figure 6 This is a schematic structural diagram of the adjustment seat in the utility model;

[0033] Figure 7 This is a schematic structural diagram of the rotating shaft of the utility model;

[0034] Figure 8 It is a schematic diagram of the cross-sectional structure of AA in the present utility model;

[0035] Figure 9 This is a schematic diagram of the cross-sectional structure of the limit sleeve in the utility model;

[0036] Markings in the figure:

[0037] 1. Toggle plate seat, 2. Front toggle plate, 3. Rear toggle plate, 4. Moving jaw, 5. Adjusting seat, 6. Rotating shaft, 7. Limiting sleeve, 8. Groove, 9. Guide part, 10. Mounting seat, 11. First through hole, 12. Second through hole, 13. Pressing plate, 14. Connecting part. DETAILED DESCRIPTION

[0038] Example 1

[0039] As a basic embodiment of the present invention, the present invention includes a crusher that is easy to replace the rotating shaft, including a toggle plate seat 1, a front toggle plate 2, a rear toggle plate 3, a movable jaw 4 and an adjustment seat 5. The two ends of the front toggle plate 2 are hinged to the toggle plate seat 1 and the movable jaw 4 respectively through the rotating shaft 6. The two ends of the rear toggle plate 3 are hinged to the toggle plate seat 1 and the adjustment seat 5 respectively through the rotating shaft 6. A limiting sleeve 7 is provided at both ends of the rotating shaft 6, and a groove 8 matching the limiting sleeve 7 is provided on the toggle plate seat 1, the movable jaw 4 and the adjustment seat 5 respectively. The groove 8 is formed with an opening. After the limiting sleeve 7 is installed at both ends of the rotating shaft 6, the limiting sleeve 7 is placed into the groove 8 from the opening of the groove 8, and then the limiting sleeve 7 is fixed in the groove 8 by a fixing member. When the rotating shaft 6 needs to be replaced or disassembled, the fixing member is removed, the limiting sleeve 7 is taken out along the opening of the groove 8, and then the rotating shaft 6 is replaced.

[0040] Example 2

[0041] As a preferred embodiment of the present invention, the present invention includes a crusher that facilitates shaft replacement, comprising a toggle plate seat 1, a front toggle plate 2, a rear toggle plate 3, a movable jaw 4, and an adjustment seat 5. The ends of the front toggle plate 2 are hingedly connected to the toggle plate seat 1 and the movable jaw 4 via a rotational shaft 6, respectively. The ends of the rear toggle plate 3 are hingedly connected to the toggle plate seat 1 and the adjustment seat 5 via a rotational shaft 6. Limiting sleeves 7 are provided at both ends of the rotational shaft 6. Grooves 8 that match the limiting sleeves 7 are provided on the toggle plate seat 1, the movable jaw 4, and the adjustment seat 5, respectively. The limiting sleeves 7 are secured within the grooves 8 via a fixing member.

[0042] In order to facilitate the installation and disassembly of the limit sleeve 7 and the rotating shaft 6, the toggle plate seat 1, the movable jaw part 4 and the adjustment seat 5 are respectively provided with a guide part 9 connected to the groove 8, so that the limit sleeve 7 and the rotating shaft 6 can be pushed into the groove 8 or withdrawn from the groove 8 along the shape of the guide part 9.

[0043] Example 3

[0044] As another preferred embodiment of the present invention, the present invention includes a crusher that facilitates shaft replacement, comprising a toggle plate seat 1, a front toggle plate 2, a rear toggle plate 3, a movable jaw 4, and an adjustment seat 5. The front toggle plate 2 is hingedly connected to the toggle plate seat 1 and the movable jaw 4 at both ends via a shaft 6, and the rear toggle plate 3 is hingedly connected to the toggle plate seat 1 and the adjustment seat 5 at both ends via a shaft 6. A limiting sleeve 7 is provided at each end of the shaft 6. The limiting sleeve 7 is stepped and includes a connected connecting portion 14 and a pressure plate 13. The pressure plate 13 is larger than the connecting portion 14. The limiting sleeve 7 is provided with a through hole that matches the shaft 6.

[0045] The toggle plate seat 1, movable jaw 4, and adjustment seat 5 are each provided with a groove 8 that matches the stop sleeve 7 and a guide portion 9 that communicates with the groove 8. The connecting portions 14 of the stop sleeve 7 at both ends of the rotating shaft 6 slide along the guide portion 9 into the groove 8, and then the wall of the groove 8 and the pressure plate 13 are connected together by fixings. The fixings may be screws, studs, bolts, etc.

[0046] Example 4

[0047] As the best embodiment of this utility model, refer to the attached Figure 1 ~Instruction manual attached Figure 3 The present invention includes a crusher with an easily replaceable rotating shaft, comprising a frame, a front toggle plate 2, a rear toggle plate 3, a toggle plate seat 1, a movable jaw 4, and an adjustment seat 5 mounted on the frame. The two ends of the front toggle plate 2 are hingedly connected to the toggle plate seat 1 and the movable jaw 4 via a rotating shaft 6, and the two ends of the rear toggle plate 3 are hingedly connected to the toggle plate seat 1 and the adjustment seat 5 via a rotating shaft 6.

[0048] The two ends of the rotating shaft 6 are provided with limiting sleeves 7. Figure 7 and instructions attached Figure 8 The shaft 6 includes a shaft body and flat square structures at both ends of the shaft body. Figure 9 The limiting sleeve 7 is stepped and includes a connecting portion 14 and a pressure plate 13. The size of the connecting portion 14 is smaller than that of the pressure plate 13. A through hole matching the rotating shaft 6 is provided in the limiting sleeve 7. More specifically, a first through hole 11 matching the rotating shaft body is provided in the connecting portion 14, and a second through hole 12 matching the flat square structure is provided in the pressure plate 13. The first through hole 11 is connected to the second through hole 12.

[0049] Refer to the instruction manual Figure 4 ~Instruction manual attached Figure 6 The toggle plate seat 1, the movable jaw portion 4 and the adjustment seat 5 are respectively provided with a groove 8 and a guide portion 9 which is connected to the groove 8 and is arranged obliquely. The groove 8 matches the connecting portion 14 of the limiting sleeve 7.

[0050] Furthermore, the invention also includes a driving assembly for driving the adjustment seat 5 to reciprocate to control the opening size of the crusher. The driving assembly can be a conventional linear driving mechanism in the art, such as a cylinder, a ball screw mechanism, etc.

[0051] After the limiting sleeves 7 at both ends of the rotating shaft 6 slide along the guide portion 9 into the groove 8, the walls of the groove 8 can be connected to the pressure plate 13 via fixings. The walls of the groove 8 can be the toggle plate seat 1, the movable jaw 4, and the adjustment seat 5, and the fixings can be bolts. When the rotating shaft 6 needs to be replaced, the bolts are removed, and the limiting sleeves 7 and the rotating shaft 6 can be slid out of the groove 8 along the guide portion 9.

[0052] In this embodiment, the above structure can be used not only to manufacture new crushers but also to retrofit existing crushers. Specifically, during the retrofit, the toggle plate and adjustment seat of the existing crusher are removed, while retaining the original rotating shaft and other components on the movable jaw 4. A mounting seat 10 is then installed above the existing rotating shaft, with the groove 8 provided on this mounting seat 10. The toggle plate and adjustment seat of the new structure are then installed in their corresponding positions.

[0053] The mounting base 10 is connected to the movable jaw 4. To improve the stability of the connection between the movable jaw 4 and the mounting base 10, a slot can be provided on the mounting base 10. The slot can be matched with the outwardly protruding structure on the movable jaw 4. The number of the slots can also be multiple, and the slots can also be used to be clamped on the existing rotating shaft.

[0054] Furthermore, since the position of the groove 8 is moved upward, in order to avoid interference between the front toggle plate 2 and the frame, an avoidance groove is also provided on the frame.

[0055] To sum up, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.

Claims

1. A crusher with an easily replaceable rotating shaft, comprising a toggle plate seat (1), a front toggle plate (2), a rear toggle plate (3), a movable jaw (4), and an adjustment seat (5); the two ends of the front toggle plate (2) are respectively hinged to the toggle plate seat (1) and the movable jaw (4) via a rotating shaft (6), and the two ends of the rear toggle plate (3) are respectively hinged to the toggle plate seat (1) and the adjustment seat (5) via a rotating shaft (6); the characteristics are: Limiting sleeves (7) are provided at both ends of the rotating shaft (6); grooves (8) matching the limiting sleeves (7) are respectively provided on the toggle plate seat (1), the movable jaw portion (4) and the adjusting seat (5); and the limiting sleeves (7) are fixed in the grooves (8) by fixing members.

2. A crusher with easy shaft replacement according to claim 1, characterized in that: It also includes a guide portion (9) communicating with the groove (8).

3. A crusher with easy shaft replacement according to claim 2, characterized in that: It also includes a mounting seat (10) connected to the movable jaw (4), and the groove (8) is provided on the mounting seat (10).

4. A crusher with easy shaft replacement according to claim 3, characterized in that: A card slot is provided on the mounting seat (10).

5. The crusher with easy shaft replacement according to claim 2, characterized in that: The crusher frame is provided with an avoidance groove for avoiding the front toggle plate (2).

6. A crusher with easy shaft replacement according to any one of claims 1 to 5, characterized in that: The limiting sleeve (7) is stepped and comprises a connected connecting portion (14) and a pressing plate (13); the pressing plate (13) is configured to cooperate with the fixing member; and a through hole matching the rotating shaft (6) is provided in the limiting sleeve (7).

7. The crusher with easy shaft replacement according to claim 6, characterized in that: The rotating shaft (6) comprises a rotating shaft body and flat square structures located at both ends of the rotating shaft body; the through hole comprises a first through hole (11) and a second through hole (12) that are connected to each other, the first through hole (11) matches the rotating shaft body, and the second through hole (12) matches the flat square structure.

8. The crusher with easy shaft replacement according to claim 6, characterized in that: It also includes a driving assembly for driving the adjustment seat (5) to reciprocate.

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