Jaw crusher and jaw plate thereof

Abstract

The utility model relates to the field of jaw crushers, and particularly discloses a jaw crusher and a jaw plate thereof, the jaw crusher comprises a fixed jaw plate and a movable jaw plate, the fixed jaw plate and the movable jaw plate respectively comprise a plate body, a positioning piece and a plurality of jaw teeth, the plurality of jaw teeth are parallel to each other and are distributed at equal intervals along the width direction of the plate body, and the jaw teeth are detachably connected to the plate body. The positioning piece is connected to the upper end of the plate body through a bolt and abuts against the upper end of the jaw tooth, so that the jaw tooth is limited on the plate body. The jaw teeth are detachably connected with the plate body, and when the jaw teeth in the middle of the plate body are seriously abraded, the jaw teeth in the middle can be independently detached and replaced, so that the operation difficulty of jaw tooth replacement is reduced, meanwhile, the utilization rate of other jaw teeth with small abrasion is increased, and the stability of the jaw teeth in the crushing process is ensured through the arrangement of the positioning piece.

Description

Technical Field

[0001] The utility model relates to the field of jaw crushers, in particular to a jaw crusher and a jaw plate thereof. Background Art

[0002] The jaw crusher consists of two jaw plates, the movable jaw and the static jaw, forming a crushing chamber. It is widely used in the crushing of various ores and bulk materials in industries such as mining and smelting, building materials, roads, railways, water conservancy and chemical industry.

[0003] The jaw plate and the jaw teeth on the traditional jaw crusher are mostly formed as one piece. In the process of crushing test blocks by the jaw crusher, the stones are mainly transported by an arc-shaped belt conveyor, and the materials are mainly concentrated in the middle part of the belt conveyor. This causes the materials to be mainly concentrated in the middle part of the crushing chamber when entering the jaw crusher, which causes the jaw teeth in the middle to first contact and crush the materials. Over time, the jaw teeth in the middle of the jaw plate wear more seriously than the jaw teeth on both sides. When it needs to be replaced, the entire jaw plate can only be replaced. The jaw teeth on both sides near the edge of the jaw plate still meet the requirements for crushing operations, so replacing the entire jaw plate leads to unnecessary waste. Utility Model Content

[0004] The purpose of the utility model is to provide a jaw crusher and a jaw plate thereof, so as to overcome the above-mentioned defects in the prior art.

[0005] According to a jaw plate of the utility model, it includes a fixed jaw plate and a movable jaw plate, and the fixed jaw plate and the movable jaw plate both include a plate body, a positioning member and a plurality of jaw teeth, and the plurality of jaw teeth are parallel to each other and equidistantly distributed along the width direction of the plate body, and the jaw teeth are detachably connected to the plate body, and the positioning member is connected to the upper end of the plate body by bolts and abuts against the upper end of the jaw teeth, thereby achieving the purpose of restricting the jaw teeth on the plate body.

[0006] Through the above-mentioned technical solution provided by the utility model, the jaw teeth and the plate body are detachably connected. When the jaw teeth located in the middle part of the plate body are severely worn, the jaw teeth in the middle part can be replaced separately, thereby reducing the difficulty of jaw teeth replacement and improving the utilization rate of other jaw teeth with less wear. The setting of the positioning part ensures the stability of the jaw teeth during the crushing process.

[0007] Furthermore, a jaw tooth cavity for accommodating jaw teeth is provided on the sides of the plate body on the fixed jaw plate and the plate body on the movable jaw plate that are close to each other, the upper end of the jaw tooth cavity is open, the thickness of the jaw teeth is greater than the depth of the jaw tooth cavity, and a plurality of equally distributed mounting grooves aligned with the jaw teeth are provided in the bottom wall of the jaw tooth cavity, and the bottom end of the jaw teeth abuts against the lower side wall of the jaw tooth cavity.

[0008] Through the technical solution provided by the present invention, the bottom end of the jaw tooth abuts against the lower side wall of the jaw tooth cavity, and the matching positioning piece abuts against the upper end of the jaw tooth, which is conducive to fixing the jaw tooth in the jaw tooth cavity.

[0009] Furthermore, a mounting bar is fixedly provided on one side of the jaw tooth close to the mounting groove, the upper end of the mounting groove is opened, and limiting bars are fixedly provided on both side walls of the mounting groove. Limiting grooves that can be slidably connected to the limiting bars are provided on both side surfaces of the mounting bar parallel to the limiting bar, and the mounting bar can be embedded in the mounting groove.

[0010] The technical solution provided by the present invention is helpful to improve the connection firmness between the jaw teeth and the plate body.

[0011] Furthermore, a plurality of support bars equidistantly distributed along the height direction of the jaw teeth are fixed on both side surfaces of the jaw teeth parallel to the limiting groove, and a side of the support bar close to the mounting bar abuts against the bottom wall of the jaw tooth cavity.

[0012] Through the technical solution provided by the present invention, the arrangement of the support bars can improve the bending strength of the jaw teeth on the horizontal plane.

[0013] Furthermore, the support bars are arranged to be tilted downward, and the support bars between two adjacent jaw teeth abut against each other.

[0014] Through the technical solution provided by the present invention, the support bars arranged obliquely downward can effectively prevent the broken test blocks from staying on the support bars.

[0015] Furthermore, the upper end of the plate body extends upward to form an extension plate, the thickness of the extension plate is less than the thickness of the plate body, and a step is formed between the extension plate and the upper end surface of the plate body. The positioning piece is in the shape of a "limiting groove" composed of a connecting portion and a supporting portion. A threaded hole is provided on the extension plate, and the connecting portion is fixed to the extension plate by a bolt. A threaded hole is provided on the upper end surface of the plate body, and the supporting portion is fixed to the upper end surface of the plate body by a bolt. A rib plate is fixed between the connecting portion and the supporting portion, and the supporting portion abuts against the upper end of the jaw teeth.

[0016] Through the above-mentioned technical solution provided by the utility model, the positioning part is fixed by the upper end of the bolt plate body, and the support part is abutted against the upper end of the jaw teeth to achieve the limitation of the jaw teeth. The ribs between the support part and the connecting part can effectively improve the supporting strength between the support part and the connecting part.

[0017] The utility model also provides a jaw crusher, comprising the jaw plate;

[0018] The fixed jaw plate is fixed on the frame of the jaw crusher, and the movable jaw plate is fixed on the movable jaw of the jaw crusher and swings back and forth with the movable jaw.

[0019] The beneficial effects of the utility model are as follows: the jaw teeth are detachably connected to the plate body. When the jaw teeth located in the middle part of the plate body are severely worn, the jaw teeth in the middle part can be removed and replaced separately, thereby reducing the difficulty of jaw teeth replacement and improving the utilization rate of other jaw teeth with less wear. The setting of the positioning part ensures the stability of the jaw teeth during the crushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0022] Figure 3 This is a structural diagram of the jaw plate in the utility model;

[0023] Figure 4 It is an exploded view of the jaw plate of the present invention;

[0024] Figure 5 This utility model Figure 4 A in the middle is an enlarged schematic diagram;

[0025] Figure 6 This utility model Figure 4 The enlarged schematic diagram of point B in the middle;

[0026] Figure 7 It is a structural diagram of the jaw gear in the utility model;

[0027] Figure 8 This utility model Figure 7 Enlarged schematic diagram at point C in the middle;

[0028] Figure 9 It is a structural diagram of the plate body in the utility model.

[0029] In the picture:

[0030] 1. Fixed jaw plate; 2. Movable jaw plate; 10. Plate body; 101. Jaw tooth cavity; 102. Mounting groove; 103. Limiting strip; 11. Jaw tooth; 111. Supporting strip; 112. Mounting strip; 113. Limiting slot; 12. Positioning piece; 121. Rib plate; 122. Connecting part; 123. Supporting part; 13. Extension plate. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1The orientation or positional relationship shown is only for the purpose of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0032] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up and down and left and right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human errors. The specific features of the jaw crusher and its jaw plate are described in detail below:

[0033] An embodiment of the present invention:

[0034] Reference Figures 1-9 The utility model provides a jaw plate, including a fixed jaw plate 1 and a movable jaw plate 2. The fixed jaw plate 1 and the movable jaw plate 2 both include a plate body 10, a positioning member 12 and a plurality of jaw teeth 11. The plurality of jaw teeth 11 are parallel to each other and equidistantly distributed along the width direction of the plate body 10. The jaw teeth 11 are detachably connected to the plate body 10. The positioning member 12 is connected to the upper end of the plate body 10 by bolts and abuts against the upper end of the jaw teeth 11, thereby limiting the jaw teeth 11 on the plate body 10.

[0035] Reference Figure 5 、 Figure 6 The plate body 10 on the fixed jaw plate 1 and the plate body 10 on the movable jaw plate 2 are both provided with a jaw tooth cavity 101 for accommodating the jaw teeth 11 on their respective sides. The upper end of the jaw tooth cavity 101 is open, and the thickness of the jaw tooth 11 is greater than the depth of the jaw tooth cavity 101. The bottom wall of the jaw tooth cavity 101 is provided with a number of equally spaced mounting grooves 102 aligned with the jaw teeth 11, and the bottom end of the jaw tooth 11 abuts against the lower side wall of the jaw tooth cavity 101.

[0036] Reference Figure 5 、 Figure 8 A mounting strip 112 is fixedly provided on one side of the jaw tooth 11 close to the mounting groove 102. The upper end of the mounting groove 102 is open, and limiting strips 103 are fixedly provided on both side walls of the mounting groove 102. The mounting strip 112 is parallel to both side surfaces of the limiting strip 103 and is provided with limiting grooves 113 that can be slidably connected to the limiting strip 103. The mounting strip 112 can be embedded in the mounting groove 102.

[0037] Reference Figure 6 、 Figure 7 、 Figure 8A number of support bars 111 are fixed on both sides of the jaw tooth 11 parallel to the limiting groove 113 and are evenly distributed along the height direction of the jaw tooth 11. The side of the support bar 111 close to the mounting bar 112 abuts against the bottom wall of the jaw tooth cavity 101. The support bar 111 is tilted downward, and the support bars 111 between two adjacent jaw teeth 11 abut against each other.

[0038] Reference Figure 3 、 Figure 4 、 Figure 9 The upper end of the plate body 10 extends upward to form an extension plate 13. The thickness of the extension plate 13 is less than the thickness of the plate body 10. A step is formed between the extension plate 13 and the upper end surface of the plate body 10. The positioning member 12 is in the shape of a "limiting groove 113" composed of a connecting portion 122 and a supporting portion 123. A threaded hole is provided on the extension plate 13. The connecting portion 122 is fixed to the extension plate 13 by bolts. A threaded hole is provided on the upper end surface of the plate body 10. The supporting portion 123 is fixed to the upper end surface of the plate body 10 by bolts. A rib 121 is fixed between the connecting portion 122 and the supporting portion 123, and the supporting portion 123 abuts against the upper end of the jaw tooth 11.

[0039] The utility model also provides a jaw crusher, comprising the jaw plate;

[0040] The fixed jaw plate 1 is fixed to the frame of the jaw crusher by bolts, and the movable jaw plate 2 is fixed to the movable jaw of the jaw crusher by bolts and swings back and forth with the movable jaw.

[0041] When the jaw tooth 11 needs to be replaced, the jaw plate is first removed from the jaw crusher, and then the positioning piece 12 is removed from the extension plate 13. The jaw tooth 11 to be replaced together with the mounting strip 112 thereon is slid upward out of the jaw tooth cavity 101, and then the new jaw tooth 11 is inserted into the jaw tooth cavity 101. The positioning piece 12 is fixed to the extension plate 13 by bolts, and then the jaw plate is reinstalled on the jaw crusher.

[0042] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All such modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims appended hereto.

Claims

1. A jaw plate, comprising a fixed jaw plate (1) and a movable jaw plate (2), characterized in that: The fixed jaw plate (1) and the movable jaw plate (2) both include a plate body (10), a positioning member (12) and a plurality of jaw teeth (11), wherein the plurality of jaw teeth (11) are parallel to each other and are equidistantly distributed along the width direction of the plate body (10), and the jaw teeth (11) are detachably connected to the plate body (10). The positioning member (12) is connected to the upper end of the plate body (10) by bolts and abuts against the upper end of the jaw teeth (11), thereby restricting the jaw teeth (11) on the plate body (10).

2. A jaw plate according to claim 1, characterized in that: A jaw tooth cavity (101) for accommodating the jaw teeth (11) is provided on a side of the plate body (10) on the fixed jaw plate (1) and a side of the plate body (10) on the movable jaw plate (2) that are close to each other. The upper end of the jaw tooth cavity (101) is open. The thickness of the jaw teeth (11) is greater than the depth of the jaw tooth cavity (101). A plurality of mounting grooves (102) that are equidistantly distributed and aligned with the jaw teeth (11) are provided in the bottom wall of the jaw tooth cavity (101). The bottom end of the jaw teeth (11) abuts against the lower side wall of the jaw tooth cavity (101).

3. A jaw plate according to claim 2, characterized in that: A mounting strip (112) is fixedly provided on one side of the jaw tooth (11) close to the mounting groove (102); the upper end of the mounting groove (102) is opened; limiting strips (103) are fixedly provided on both side walls of the mounting groove (102); limiting slots (113) that can be slidably connected to the limiting strip (103) are provided on both side surfaces of the mounting strip (112) parallel to the limiting strip (103); and the mounting strip (112) can be embedded in the mounting groove (102).

4. A jaw plate according to claim 3, characterized in that: A plurality of support bars (111) are fixedly provided on both sides of the jaw tooth (11) parallel to the limiting groove (113) and are distributed equidistantly along the height direction of the jaw tooth (11). A side of the support bar (111) close to the mounting bar (112) abuts against the bottom wall of the jaw tooth cavity (101).

5. The jaw plate according to claim 4, characterized in that: The support bars (111) are arranged to be tilted downward, and the support bars (111) between two adjacent jaw teeth (11) abut against each other.

6. The jaw plate according to claim 1, characterized in that: The upper end of the plate body (10) extends upward to form an extension plate (13), the thickness of the extension plate (13) is less than the thickness of the plate body (10), and a step is formed between the extension plate (13) and the upper end surface of the plate body (10). The positioning member (12) is in the shape of a "limiting groove (113)" consisting of a connecting portion (122) and a supporting portion (123). A threaded hole is provided on the extension plate (13), and the connecting portion (122) is fixed to the extension plate (13) by a bolt. A threaded hole is provided on the upper end surface of the plate body (10), and the supporting portion (123) is fixed to the upper end surface of the plate body (10) by a bolt. A rib plate (121) is fixed between the connecting portion (122) and the supporting portion (123), and the supporting portion (123) abuts against the upper end of the jaw tooth (11).

7. A jaw crusher, characterized in that: The jaw plate comprises any one of claims 1 to 6; The fixed jaw plate (1) is fixed on the frame of the jaw crusher, and the movable jaw plate (2) is fixed on the movable jaw of the jaw crusher and swings back and forth with the movable jaw.

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