Novel jaw crusher

Abstract

The utility model relates to a novel jaw crusher which comprises a machine frame, a front supporting leg and a rear supporting leg are arranged at the lower end of the machine frame, and the front supporting leg and the rear supporting leg are installed on the machine frame in different positions, so that the lower end face of the machine frame is in the state that the rear end of the lower end face inclines upwards, and the front end of the lower end face of the machine frame inclines downwards. The front end of the rack inclines downwards, the rear end of the rack inclines upwards by adjusting the positions of the front supporting foot and the rear supporting foot on the rack, the stroke of the jaw crusher and the width of a feeding port are successfully increased, the field actual measurement capacity is increased by 18%, the problem is successfully solved, and the expected effect is achieved. Meanwhile, the stroke of the existing jaw crusher and the width of the feed port can be adjusted only by changing the positions of the supporting legs, and the jaw crusher is extremely convenient to operate on site and ingenious in conception.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mine machinery, concretely relates to a novel jaw crusher. BACKGROUND

[0002] As a primary crushing equipment, the jaw crusher is widely used in crushing site.

[0003] The structural principle diagram of the jaw crusher is shown in the figure, wherein 21 is a fixed jaw plate, 22 is a movable jaw plate, 23 is an eccentric shaft, 24 is an elbow plate, and 25 is a rack. Figure 1 In essence, it is a four-bar crank rocker structure with the eccentric shaft 23 as the crank, the elbow plate 24 as the rocker, the movable jaw plate 22 as the connecting rod, and the rack 25 as the fixed rod.

[0004] The structure of the jaw crusher in the prior art is shown in the figure, the rack 25 is supported on the ground base through the legs 26 on both sides, and the lower end surface of the rack is kept parallel to the horizontal plane. Figure 2 The above-mentioned jaw crusher purchased is found to have small feeding particle size and low production capacity during use, so the original jaw crusher needs to be modified to make the modified jaw crusher meet the use requirements. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a jaw crusher to solve the technical problems of small feeding particle size and low production capacity of the existing jaw crusher.

[0006] Therefore, the utility model of a kind of jaw crusher adopts the following technical scheme:

[0007] A novel jaw crusher, comprising a rack, the two sides of the rack are provided with front legs and rear legs, the height of the front legs from the bottom surface of the rack is greater than the height of the rear legs from the bottom surface of the rack, so that the lower end surface of the rack presents a state of the rear end upwardly inclined and the front end downwardly inclined after the front legs and the rear legs are supported on the base.

[0008] Further, the upper end of the fixed jaw plate is machined with an upper end forwardly inclined slope angle.

[0009] Further, the inclination angle of the rack is not greater than 7 degrees.

[0010] Further, the inclination angle of the rack is 6 degrees.

[0011] Compared with the prior art, the utility model has the advantages and beneficial effects:

[0012] The utility model discloses a position of adjusting support foot on the frame makes the frame front end downward, rear end upward inclination, successfully increased the stroke and feed inlet width of jaw crusher, the on -the -spot measurement capacity has increased 18%, successfully solved the problem, reached the expected effect.

[0013] Meanwhile, the utility model discloses only through changing support foot position can complete to the stroke and feed inlet width of jaw crusher of existing adjustment, the on -the -spot operation is extremely convenient, and the conception is ingenious.

[0014] The additional aspects and advantages of the utility model will be partly given in the following description, and some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 It is the mechanism principle diagram of jaw crusher in prior art;

[0017] Figure 2 It is the structure schematic view of a kind of jaw crusher in prior art;

[0018] Figure 3 It is the structure schematic view of one embodiment of a kind of jaw crusher of the utility model;

[0019] Figure 4 It is the structure schematic view at fixed jaw plate and movable jaw plate;

[0020] Figure 5 It is Figure 4 The partial structure schematic view of place A in;

[0021] Figure 6 The partial structure schematic view of place B;

[0022] Figure 7 It is the principle diagram of feed inlet width change.

[0023] Wherein: 1, frame;2, fixed jaw plate;3, movable jaw plate;4, front support foot;5, rear support foot;6, slope angle. DETAILED DESCRIPTION

[0024] The embodiments of the utility model are described in detail below, and the embodiment example is shown in the drawings, wherein the same or similar signs indicate the same or similar elements or elements with the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0025] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication. For ordinary skilled person in the art, can understand the specific meaning of above terms in the utility model according to specific circumstances.

[0026] An embodiment of the jaw crusher of the utility model:

[0027] The specific structure of the jaw crusher of the utility model is shown in Figures 3 to 7 The utility model discloses a jaw crusher, which comprises a rack 1, a fixed jaw plate 2 and a movable jaw plate 3 are installed on the rack 1, the movable jaw plate 3 reciprocates under the driving of a movable jaw eccentric shaft. When the movable jaw plate 3 rises, the movable jaw plate 3 and the fixed jaw plate 2 extrude and rub the materials between them, so that the materials are crushed. When the movable jaw plate 3 descends, the movable jaw plate 3 is pulled by an elbow plate, and the crushed materials flow out from the lower end of the cavity between the movable jaw plate 3 and the fixed jaw plate 2.

[0028] The side where the fixed jaw plate 2 is located is the front end, and the side where the movable jaw plate 3 is located is the rear end. Front legs 4 and rear legs 5 are installed on the two sides of the rack 1. The front legs 4 are installed on the side close to the fixed jaw plate 2, and the rear legs 5 are installed on the side close to the movable jaw plate 3. The height of the front legs 4 from the bottom surface of the rack 1 is greater than the height of the rear legs 5 from the bottom surface of the rack 1. Therefore, after the rack 1 is supported on the ground foundation by the front legs 4 and the rear legs 5, the lower end of the rack 1 is not parallel to the horizontal plane, but is inclined upward at the rear end and inclined downward at the front end.

[0029] The width W of the feeding port of the jaw crusher is the horizontal distance between the movable jaw plate 3 and the fixed jaw plate 2. When the lower end of the rack 1 is parallel to the horizontal plane, a horizontal line L1 drawn from the upper end of the movable jaw plate 3 is located above a vertical line L2 of the upper end of the movable jaw plate 3 and the fixed jaw plate 2. When the rear end of the rack 1 is inclined upward and the front end is inclined downward, with the change of the inclination angle of the movable jaw plate 3, the angle α in the figure increases, and the length of the inclined side L1 extending horizontally also increases naturally. Since W=L1, the width W of the feeding port of the jaw crusher increases accordingly.

[0030] In this embodiment, an upper end of the fixed jaw plate 2 is processed with a slope angle 6 inclined forward, and when the fixed jaw plate 2 moves upward to the highest point, the upper end of the movable jaw plate 3 is lower than the lower edge of the slope angle 6. Therefore, when the rear end of the rack 1 is inclined upward and the front end is inclined downward, the intersection point of the horizontal line drawn from the upper end of the movable jaw plate 3 and the fixed jaw plate 2 is closer to the upper side of the slope angle 6, so that the width W of the feeding port of the jaw crusher increases more greatly.

[0031] The stroke L of the jaw crusher is the maximum displacement of the lower end of the movable jaw plate 3 in the horizontal direction when the movable jaw plate 3 reciprocates and faces the fixed movable jaw plate 2. When the lower end of the frame 1 is parallel to the horizontal plane, the movement track of the lower end of the movable jaw plate 2 is an ellipse, and the upper end of the vertical axis of the ellipse is inclined backward. The L is the projection of the horizontal axis of the ellipse on the horizontal plane. When the rear end of the frame 1 is inclined upward and the front end is inclined downward, the angle between the vertical axis of the ellipse and the horizontal plane is increased, and the projection of the horizontal axis on the horizontal plane is naturally increased, so the stroke L of the jaw crusher is increased.

[0032] In this embodiment, the rear end of the frame 1 is inclined upward by 6 degrees. The width W of the feed inlet of the jaw crusher is increased from 569.1 mm to 578.5 mm, the stroke L is increased from 23.1 mm to 28 mm, and the eccentricity is increased by (28-23.1) / 28*100%=21%. The actual measured production capacity is increased by 18%, the problem is successfully solved, and the expected effect is achieved.

Claims

1. A novel jaw crusher, characterized in that: The frame includes a front support leg and a rear support leg on both sides. The height of the front support leg from the bottom surface of the frame is greater than the height of the rear support leg from the bottom surface of the frame, so that when the front and rear support legs are supported on the foundation, the lower end of the frame is tilted upward at the rear end and downward at the front end.

2. The novel jaw crusher according to claim 1, characterized in that: A fixed jaw plate is mounted on the frame, and the upper end of the fixed jaw plate is cast with a forward-sloping angle.

3. A novel jaw crusher according to claim 1, characterized in that: The tilt angle of the frame is no greater than 7 degrees.

4. A novel jaw crusher according to claim 3, characterized in that: The rack is tilted at an angle of 6 degrees.

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