Split type spindle head nut structure of crusher

Abstract

The utility model discloses a split type spindle head nut structure of a crusher, which comprises a head nut body, two wear-resistant lining plates are symmetrically arranged on two sides of the upper end of the head nut body, and two rebound plates are symmetrically arranged on two sides of the upper end of each wear-resistant lining plate. The head nut has the beneficial effects that the two detachable and replaceable wear-resistant lining plates for protection are symmetrically mounted on the upper side of the head nut body, and the detachable and replaceable rebound plate is independently mounted on each wear-resistant lining plate; when the main shaft head nut structure is used, the main shaft head nut structure can be prevented from being in direct contact with materials fed into the cone crusher under the action of the rebound plate and the wear-resistant lining plate, so that frictional wear generated when the head nut body is used is effectively reduced, and the service life of the head nut body is prolonged; the defect that the head nut body needs to be replaced frequently during use is overcome, and the fixing cost of the movable cone lining plate of the cone crusher is reduced.

Description

Technical Field

[0001] The utility model relates to the field of the main shaft head nut structure of a cone crusher, in particular to a split main shaft head nut structure of a crusher. Background Art

[0002] The main shaft head nut of a crusher is an important component for pressing the moving cone liner in a cone crusher, and can realize the reliable fixation of the moving cone liner on the main shaft of the cone crusher.

[0003] At present, the main shaft head nut of a cone crusher is mainly composed of an integral pressing ring. Although the main shaft head nut of this structure can press and fix the moving cone liner after the cone crushing during use, due to the feeding principle of the cone crusher, the main shaft head nut of the crusher will be worn by the impact of ore. With the need for cutting and maintenance during each replacement of the liner, after 2 - 4 times of liner replacement, the process, technical requirements and installation dimensions of the main shaft head nut do not meet the standards, resulting in a short service life of the main shaft head nut and the need for frequent replacement, increasing the fixed cost of the moving cone liner of the cone crusher. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a split main shaft head nut structure of a crusher in view of the current situation of the prior art.

[0005] The utility model is realized by the following technical solutions: The utility model provides a split main shaft head nut structure of a crusher, including a head nut body. Two wear-resistant liners are symmetrically installed on both sides of the upper end of the head nut body. Two rebound plates are symmetrically installed on both sides of the upper end of each wear-resistant liner. Two T-shaped plug platforms are symmetrically installed on both sides of the bottom end of the rebound plate. T-shaped slots are opened at the positions of the wear-resistant liners that cooperate with the T-shaped plug platforms.

[0006] By adopting the above technical solutions, under the action of the rebound plates and the wear-resistant liners, the direct contact between the head nut body and the materials fed into the cone crusher during use can be avoided, thereby effectively reducing the friction and wear generated by the head nut body during use and improving the service life of the head nut body.

[0007] Furthermore, a countersunk head groove is opened on one side of each wear-resistant liner corresponding to the two rebound plates at the upper end. A countersunk head bolt one is installed in the countersunk head groove. The countersunk head bolt one penetrates through the countersunk head groove and is slidably connected with the countersunk head groove.

[0008] By adopting the above technical solutions, the convenient penetration of the countersunk head bolt one in the countersunk head groove can be realized when installing the rebound plate.

[0009] Further, a first screw hole is provided on the head nut body opposite to the countersunk bolt, and the size of the first screw hole matches the size of the countersunk bolt 1.

[0010] By adopting the above technical solution, after the countersunk bolt 1 is screwed with the first screw hole, the reliable installation and fixation of the wear-resistant lining plate on the head nut body can be realized.

[0011] Further, a through hole is provided in the middle of the T-shaped plug, and a countersunk bolt 2 passes through the through hole.

[0012] By adopting the above technical solution, the through hole can facilitate the countersunk bolt 2 to pass through the T-shaped plug conveniently, so as to facilitate the efficient installation of the rebound plate.

[0013] Further, a second screw hole is provided on the head nut body opposite to the countersunk bolt 2, and a lifting platform is welded at the upper end of the head nut body at the ends of the two wear-resistant lining plates.

[0014] By adopting the above technical solution, the lifting platform enables the head nut body to have a force application part during use, which is convenient for the installation and fixation of the head nut body on the main shaft of the cone crusher.

[0015] Further, the upper end of the rebound plate is of an inclined surface structure, and both the rebound plate and the wear-resistant lining plate are made of wear-resistant steel plates.

[0016] By adopting the above technical solution, the rebound plate can rebound the material falling on the upper side of the head nut body through the inclined surface rebound effect during use, and the wear-resistant lining plate directly contacts the material to avoid the direct impact of the material on the head nut body.

[0017] Further, the wear-resistant lining plate is of an arc-shaped stepped structure, and the rebound plate is of an arc-shaped structure.

[0018] By adopting the above technical solution, the tight installation of the rebound plate on the wear-resistant lining plate can be ensured.

[0019] Further, both the countersunk bolt 1 and the countersunk bolt 2 are internal hexagonal bolts, and the size of the countersunk bolt 2 matches the size of the second screw hole.

[0020] By adopting the above technical solution, the convenient screwing and disassembly of the countersunk bolt 1 and the countersunk bolt 2 can be facilitated.

[0021] The utility model has the following beneficial effects compared with the prior art:

[0022] The utility model symmetrically installs two detachable and replaceable wear-resistant liners for protection on the upper side of the head nut body, and separately installs detachable and replaceable rebound plates on each wear-resistant liner, so that the spindle head nut structure can avoid direct contact with the fed materials in the cone crusher under the action of the rebound plates and the wear-resistant liners during use. Therefore, the friction and wear generated by the head nut body during use are effectively reduced, the service life of the head nut body is improved, the drawback of frequent replacement of the head nut body during use is avoided, and the fixed cost of the movable cone liner of the cone crusher is reduced. Brief Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of a split spindle head nut structure of a crusher according to the utility model;

[0024] Figure 2 is a schematic structural diagram of a rebound plate and a T-shaped socket in a split spindle head nut structure of a crusher according to the utility model;

[0025] Figure 3 is a schematic structural diagram of a wear-resistant liner in a split spindle head nut structure of a crusher according to the utility model;

[0026] Figure 4 is a schematic structural diagram of a head nut body in a split spindle head nut structure of a crusher according to the utility model;

[0027] Figure 5 is in a split spindle head nut structure of a crusher according to the utility model Figure 1 and is an enlarged view of part A therein.

[0028] The description of the reference numerals is as follows:

[0029] 1. Head nut body; 2. Picking table; 3. T-shaped socket; 4. Countersunk bolt II; 5. T-shaped slot; 6. Wear-resistant liner; 7. Countersunk bolt I; 8. Countersunk head groove; 9. Rebound plate; 10. Through hole; 11. Second screw hole; 12. First screw hole. Detailed Description of the Preferred Embodiment

[0030] In order to make the objectives, technical solutions and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, but not to limit the utility model.

[0031] As Figures 1 - 3As shown in the figure, a split spindle head nut structure of a crusher in this embodiment includes a head nut body 1. Two wear-resistant liners 6 are symmetrically installed on both sides of the upper end of the head nut body 1. Two rebound plates 9 are symmetrically installed on both sides of the upper end of each wear-resistant liner 6. When in use, the rebound plates 9 can rebound the materials falling on the upper side of the head nut body 1 through the inclined plane rebound effect. The wear-resistant liners 6 directly contact the materials to avoid the direct impact of the materials on the head nut body 1. Two T-shaped inserts 3 are symmetrically installed on both sides of the bottom end of the rebound plates 9. T-shaped slots 5 are provided at the parts of the wear-resistant liners 6 that cooperate with the T-shaped inserts 3. The cooperation between the T-shaped inserts 3 and the T-shaped slots 5 can make the rebound plates 9 more stable after being installed on the wear-resistant liners 6.

[0032] Among them, under the action of the rebound plates 9 and the wear-resistant liners 6, the direct contact between the head nut body 1 and the materials put into the cone crusher during use can be avoided, thereby effectively reducing the friction and wear generated by the head nut body 1 during use, and improving the service life of the head nut body 1.

[0033] As Figure 1 、 Figure 3 and Figure 5 shown in the figure, in this embodiment, a countersunk head groove 8 is provided on the upper end of each wear-resistant liner 6 on one side of the corresponding two rebound plates 9. A countersunk head bolt 7 is installed in the countersunk head groove 8. The countersunk head bolt 7 penetrates through the countersunk head groove 8 and is slidably connected to the countersunk head groove 8, which can facilitate the countersunk head bolt 7 to pass through the countersunk head groove 8 conveniently when installing the rebound plates 9.

[0034] As Figure 1 Figure 3 and Figure 4 shown in the figure, in this embodiment, a first screw hole 12 is provided on the head nut body 1 opposite to the countersunk head bolt 7. The size of the first screw hole 12 matches the size of the countersunk head bolt 7. After the countersunk head bolt 7 is screwed into the first screw hole 12, the reliable installation and fixation of the wear-resistant liner 6 on the head nut body 1 can be realized.

[0035] As Figures 1 - 2 shown in the figure, in this embodiment, a through hole 10 is provided in the middle of the T-shaped insert 3. A countersunk head bolt 4 penetrates through the through hole 10. The through hole 10 can facilitate the countersunk head bolt 4 to pass through the T-shaped insert 3 conveniently, so as to facilitate the efficient installation of the rebound plates 9.

[0036] As Figure 3 shown in the figure, in this embodiment, a second screw hole 11 is provided on the head nut body 1 opposite to the countersunk head bolt 4. A dial 2 is also welded at the ends of the two wear-resistant liners 6 on the upper end of the head nut body 1. The dial 2 makes the head nut body 1 have a force application part during use, which is convenient for the installation and fixation of the head nut body 1 on the main shaft of the cone crusher.

[0037] As Figure 1, Figure 2 and Figure 5 As shown, in this embodiment, the upper end of the rebound plate 9 is of an inclined surface structure. Both the rebound plate 9 and the wear-resistant lining plate 6 are made of wear-resistant steel plates. The wear-resistant lining plate 6 is of an arc-shaped stepped structure, and the rebound plate 9 is of an arc-shaped structure, which can ensure the tight installation of the rebound plate 9 on the wear-resistant lining plate 6. The countersunk head bolt one 7 and the countersunk head bolt two 4 are both hexagon socket head cap screws, and the size of the countersunk head bolt two 4 matches the size of the screw hole two 11, which can facilitate the convenient screwing and disassembly of the countersunk head bolt one 7 and the countersunk head bolt two 4.

[0038] The specific implementation process of this embodiment is as follows: During use, first install the rebound plate 9 on the wear-resistant support plate, then install the wear-resistant lining plate 6 on the head nut body 1, and then just install the head nut body 1 on the main shaft of the cone crusher through the dial platform 2, so that the main shaft head nut structure of the crusher can be put into use. During the use process, through the cooperative design of the wear-resistant lining plate 6 and the rebound plate 9, the main shaft head nut structure can avoid direct contact with the materials fed into the cone crusher under the action of the rebound plate 9 and the wear-resistant lining plate 6 during use, thereby effectively reducing the friction and wear generated by the head nut body 1 during use, improving the service life of the head nut body 1, avoiding the drawback of frequent replacement of the head nut body 1 during use, and reducing the fixed cost of the moving cone lining plate of the cone crusher.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A split spindle head nut structure for a crusher, characterized in that: It includes a head nut body (1), and two wear-resistant liners (6) are symmetrically installed on both sides of the upper end of the head nut body (1). Two rebound plates (9) are symmetrically installed on both sides of the upper end of each wear-resistant liner (6). Two T-shaped sockets (3) are symmetrically installed on both sides of the bottom end of the rebound plate (9). A T-shaped slot (5) is provided at the position of the wear-resistant liner (6) that cooperates with the T-shaped socket (3).

2. The split main shaft head nut structure of a crusher according to claim 1, wherein: A countersunk head groove (8) is provided on one side of the corresponding two rebound plates (9) at the upper end of each wear-resistant liner (6). A countersunk head bolt one (7) is installed in the countersunk head groove (8). The countersunk head bolt one (7) penetrates through the countersunk head groove (8) and is slidably connected to the countersunk head groove (8).

3. The split spindle head nut structure of a crusher according to claim 2, wherein: A screw hole one (12) is provided on the head nut body (1) opposite to the countersunk head bolt one (7). The size of the screw hole one (12) matches the size of the countersunk head bolt one (7).

4. A split spindle head nut structure of a crusher according to claim 2, characterized in that: A through hole (10) is provided in the middle of the T-shaped socket (3). A countersunk head bolt two (4) penetrates through the through hole (10).

5. A split spindle head nut structure of a crusher according to claim 4, characterized in that: A screw hole two (11) is provided on the head nut body (1) opposite to the countersunk head bolt two (4). A dial platform (2) is also welded at the end parts of the two wear-resistant liners (6) at the upper end of the head nut body (1).

6. A split main shaft head nut structure of a crusher according to claim 1, characterized in that: The upper end of the rebound plate (9) is of an inclined plane structure. Both the rebound plate (9) and the wear-resistant liner (6) are made of wear-resistant steel plate material.

7. A split spindle head nut structure of a crusher according to claim 1, characterized in that: The wear-resistant liner (6) is of an arc-shaped stepped structure, and the rebound plate (9) is of an arc-shaped structure.

8. A split spindle head nut structure of a crusher according to claim 5, characterized in that: Both the countersunk head bolt one (7) and the countersunk head bolt two (4) are hexagon socket head cap screws, and the size of the countersunk head bolt two (4) matches the size of the screw hole two (11).

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