JPH05131153A - Jaw crusher - Google Patents

Abstract

PURPOSE:To provide a jaw crusher equipped with a grease feeder capable of automatically feeding grease to a main bearing and a pitman bearing. CONSTITUTION:A grease tank 52 fitted with a grease pump is vertically provided in the vicinity of the side surface of a pitman 34A subjected to eccentric motion and a connection rod 55 is provided between the operation lever 56 of the grease tank 52 and the pitman 34A so as to be connected to both of them at both ends thereof by pins.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jaw crusher for crushing rocks, and more particularly to a device for automatically lubricating a bearing supporting a rotating portion of the jaw crusher.

[0002]

2. Description of the Related Art A jaw crusher conventionally used for primary crushing is, for example, as shown in FIG. 4, a swing having a movable crushing plate 36 facing a fixed jaw 32 having a fixed crushing plate 35 attached thereto. Eccentric rotary shaft 3
By oscillating with the rotation of 3, both crushing plates 3
The rock supplied between No. 5 and No. 36 is crushed by crushing and crushed. As shown in FIG. 5, the eccentric rotary shaft 33 is supported by a pair of left and right bearings 70, 70 and 72, 72. The grease supplied by a grease pump of a grease supply device (not shown) is supplied to the bearings 70 and 72 through grease pipes 60 and 62, respectively.

[0003]

However, the bearing of the jaw crusher crushes the hard rock interposed between the stationary jaw and the stationary jaw by the pitman and the swing jaw which swing in response to the motion of the eccentrically rotating rotary shaft. Since it supports the electric power required to operate the motor, the operating conditions are harsh, and a manual type device that intermittently lubricates grease by human power is sometimes not sufficient. Needed an automatic greasing device with.

[0004]

In order to solve the above-mentioned problems, in the jaw crusher of the present invention, a fixed jaw fixed to the frame, a swing jaw having an upper portion attached to an eccentric rotation shaft, and a fixed jaw are used. A pitman having an eccentric motion in a jaw crusher that has a fixed crushing plate attached and a movable crushing plate attached to a swing jaw, and supplies a crushed material between the fixed crushing plate and the movable crushing plate to compress and crush it. A structure in which a grease tank is installed and fixed near the side surface of the grease tank, and a connecting rod with both ends joined by pins is provided between the operation lever of the grease tank and the pitman to supply the grease in the grease tank to the pitman bearing. And

[0005]

In the jaw crusher of the present invention, the operation lever of the grease tank automatically swings from the pitman which is eccentrically rotated together with the eccentric rotation shaft by the operation of the jaw crusher through the connecting rod connected with the pin hinges at both ends. By repeating, grease is continuously supplied to the bearing.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 relate to an embodiment of a jaw crusher of the present invention, FIG. 1 is a plan view of the main portion of the jaw crusher, FIG. 2 is a longitudinal sectional view of the main portion of the jaw crusher, and FIG. 3 is a schematic perspective view of the main portion of the jaw crusher. It is a figure. In the figure, 30 is a jaw crusher, 34A is a pitman, 50 is a column, 51 is a U bolt, 52 is a grease tank with a built-in grease pump, 53 is a fork end, 54 is a fork end, 55 is a connecting rod, 56 is an operating lever, Reference numerals 60 and 62 are grease pipes, 70 is a bearing (main bearing), and 72 is a bearing (Pitman bearing) that supports an eccentric rotation shaft.

As shown in FIGS. 1 and 2, the eccentric rotation shaft 33
A horizontal column 50 is bridged near the rear surface of the pitman 34A which eccentrically swings, and a grease tank 52 having a built-in grease pump and containing grease is substantially vertically fixed by a U bolt 52 in the approximate center thereof. One point of the operation lever 56 of the grease tank 52 and the Pitman 34
A connecting rod 55, which is pin-joined by fork ends 53 and 54, is connected between the outer peripheral surface of A and the outer peripheral surface of A, and the operating lever 56 moves the operating angle X by the swing of the pitman 34A.
It reciprocates about the fulcrum (about 20 degrees). Then, from the grease pump discharge port of the grease tank 52 to the main bearing 7
The grease pipes 60 and 62 are connected to the No. 0 and pitman bearings 72 to supply grease. The grease tank 52 with a built-in grease pump may be a commercially available one with a manual lever. With the above construction, as shown in FIG. 3, the grease greasing device in the jaw crusher 30 of the present invention is the Pitman 3
The operating lever 56 is automatically reciprocally oscillated by utilizing the oscillating motion of 4A to continuously supply grease to the bearing during operation.

[0008]

According to the jaw crusher of the present invention,
The operation lever of the grease pump can be automatically reciprocally rotated by the eccentric oscillating motion of the pitman, so the motor of the grease pump is not required, and maintenance by manual operation is not required, and only grease replenishment is required. ， Improves driving operability and maintenance.

[Brief description of drawings]

FIG. 1 is a plan view of a main part of a jaw crusher according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of a jaw crusher according to an embodiment of the present invention.

FIG. 3 is a schematic perspective view of a main part of the jaw crusher according to the embodiment of the present invention.

FIG. 4 is a vertical sectional view of a conventional jaw crusher.

FIG. 5 is a front vertical sectional view of a main part of a conventional jaw crusher.

[Explanation of symbols]

 30 jaw crusher 31 frame 32 fixed jaw 33 eccentric rotary shaft 33a regular rotary shaft 34 swing jaw 34A pitman 35 fixed crush plate 36 movable crush plate 37 toggle plate 38 toggle head 39 compression spring 39a tension rod 39b hydraulic jack 39c bracket 50 column 51 U bolt 52 Grease tank 53 Fork end 54 Fork end 55 Connecting rod 56 Operating lever 60 Grease pipe 62 Grease pipe 70 Bearing (main bearing) 72 Bearing (Pitman bearing) M Normal rotation shaft center N Eccentric rotation shaft center X Working angle

Claims (1)

[Claims] 1. A fixed crushing machine having a fixed jaw fixed to a frame, a swing jaw having an eccentric rotation shaft whose upper part is attached, a fixed crush plate attached to the fixed jaw, and a movable crush plate attached to the swing jaw. In a jaw crusher that compresses and crushes an object to be crushed by supplying an object to be crushed between a plate and a movable crushing plate, a grease tank is erected and fixed near the side surface of the eccentrically moving pitman, and between the operation lever and the pitman of the grease tank. A jaw crusher characterized in that a connecting rod having both ends pin-joined is provided to supply grease in the grease tank to a pitman bearing.