JPH0624746U - Mobile concrete crusher - Google Patents

Abstract

(57) [Summary] [Purpose] If the straight concrete rebar is contained in the concrete debris sent into the crushing chamber of the jaw crusher, it is assumed that the rebar will penetrate vertically through the crushing chamber. (EN) Provided is a movable concrete debris crushing device which can be prevented in advance and does not damage the belt conveyor without the tip of the reinforcing bar protruding downward from the drop opening at the lower end of the crushing chamber. [Construction] A jaw crusher 1 is supported on a vehicle body frame 3 suspended from a traveling device such as a caterpillar 2, and a belt conveyor 12 is provided below the jaw crusher 1 to carry a crushed concrete block out of the vehicle. In the mobile concrete crusher, a strip plate-shaped tongue piece 7 in a horizontal state or in a front descending state is projected and integrated forward from the lower end of the swing jaw 6 in the jaw crusher 1, and the drop port 11 of the crushing chamber 10 is directed forward. It is a musical composition.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mobile concrete crushing device.

[0002]

[Prior art]

 Conventionally, at the site of dismantling a concrete building, when attempting to crush concrete debris generated by the dismantling of a building into concrete lumps within a specified size, a jaw crusher is supported on a body frame suspended by a caterpillar, At the lower part of the joe crusher, a mobile concrete crusher of a basic structure is used, which is provided with a base end of a belt conveyor for carrying out crushed concrete blocks to the outside of the vehicle.

However, in this type of conventional movable concrete crusher for crushing concrete, the jaw crusher and the belt conveyor located below it must be arranged close to each other due to the regulation of the vertical height. . Therefore, if the concrete slag sent through the hopper into the crushing chamber of the jaw crusher contains straight rebar, the tip of the rebar penetrates the crushing chamber in the vertical direction and falls at the lower end of the crushing chamber. There is a risk that it may directly project downward from the mouth and stick into the belt conveyor, damaging it.

[0004]

[Problems to be solved by the device]

 The present invention was devised to solve the above-mentioned problems in the conventional mobile concrete crushing device, in which the linear reinforcing bars are included in the concrete slag fed into the crushing chamber of the jaw crusher. Even if it is present, it is possible to prevent the reinforcing bar from penetrating the inside of the crushing chamber in the vertical direction, and the belt conveyor can be prevented without the tip of the reinforcing bar directly protruding downward from the drop opening at the lower end of the crushing chamber. It is an object of the present invention to provide a mobile concrete debris crushing device that does not damage it.

[0005]

[Means for Solving the Problems]

 A configuration of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments. A jaw crusher 1 is supported by a vehicle body frame 3 suspended by a traveling device such as a caterpillar 2, and the jaw crusher is supported. In the moving concrete crusher crushing device, in which the base end of the belt conveyor 12 for unloading the crushed concrete lumps to the outside of the vehicle is arranged in the lower part of 1, the lower end of the swing jaw 6 in the jaw crusher 1 is horizontally oriented forward. The strip-shaped tongue piece 7 in the state of falling or the state of falling forward is integrally formed by projecting, and the drop port 11 of the crushing chamber 10 is bent forward.

[0006]

[Action]

 When the straight rebar is included in the concrete debris sent into the crushing chamber 10 of the jaw crusher 1 by the above-mentioned means, the tip of the rebar projects forward from the lower end of the swing jaw 6 and is integrated. Since it is locked to the tongue piece 7 that is made into a solid, it is possible to completely prevent the downward projection from the drop port 11 of the crushing chamber 10 as it is.

[0007] The rebar is gradually bent while intermingling with the concrete debris in the crushing chamber 10 by continuing the crushing motion of the swing jaw 6, and finally bent forward together with the crushed concrete mass. As it is pushed out from the dropped opening 11, it is dropped out onto the base end portion of the belt conveyor 12.

[0008]

【Example】

 The present invention will be described below with reference to the illustrated embodiment. Reference numeral 1 is a jaw crusher supported on a vehicle body frame 3 suspended by a caterpillar 2, and the upper end of the jaw crusher 1 is eccentric to a rotating shaft 4. The lower end of the swing jaw 6 having a tooth plate mounted on the front surface, which is configured to perform a crushing motion that is a combination of rocking motion and up-and-down reciprocating motion by being pressed and supported by the toggle plate 5 on the back face of the lower end. A strip-shaped tongue piece 7 is projected and integrated in the forward direction over the entire width, whereby it is formed between the swing wall 6 and the inner surface 9 of the front wall on which the tooth plate of the crusher frame 8 is mounted. The falling port 11 of the crushing chamber 10 that becomes narrower toward the bottom is bent forward.

The tongue piece 7 preferably has its surface set in a horizontal state or a front downward state in order to smoothly guide the crushed material to the outside from the forwardly bent drop port 11. Yes.

Reference numeral 12 denotes a belt conveyor, the base end portion of which is arranged directly below the drop opening 11 at the bottom of the jaw crusher 1 and which carries out the crushed concrete mass discharged from the drop opening 11 to the outside of the vehicle in front. is there. Reference numeral 13 denotes a flywheel fixed to a rotating shaft, which is rotationally driven by a prime mover 15 via a belt 14. 16 is a hopper.

[0011]

[Effect of device]

 The present invention has been described above, and the lower end of the swing jaw 6 of the jaw crusher 1 is projectingly integrated with the tongue piece 7 in the form of a strip plate, and the drop port 11 of the crushing chamber 10 is bent forward. Even if a concrete rebar fed into the crushing chamber 10 contains a straight rebar, the tip of the rebar can be locked to the tongue 7 by a simple means. It is unlikely that the lower end of the crushing chamber 10 projects downward from the drop port 11 as it is, and therefore, there is no possibility of damaging the belt conveyor 12 and it has a practical effect that it is extremely easy to manufacture and can be provided at a low cost.

[Brief description of drawings]

FIG. 1 is an overall schematic view.

FIG. 2 is a vertical sectional view of a main part. 1 jaw crusher 2 caterpillar 3 body frame 4 rotating shaft 5 toggle plate 6 swing jaw 7 tongue piece 8 crusher frame 9 front wall inner surface 10 crushing chamber 11 drop port 12 belt conveyor 13 flywheel 14 belt 15 prime mover 16 hopper

Claims (2)

[Scope of utility model registration request] 1. A jaw crusher 1 is supported on a vehicle body frame 3 suspended from a traveling device such as a caterpillar 2.
In a movable concrete debris crushing device, in which a base end portion of a belt conveyor 12 for carrying out crushed concrete lumps to the outside of the vehicle is arranged below the jaw crusher 1,
A movable concrete crusher for crushing a swing jaw 6 in a jaw crusher 1, characterized in that a strip-shaped tongue piece 7 is projectingly integrated forward of a lower end of a swing jaw 6, and a drop port 11 of a crushing chamber 10 is bent forward. 2. The movable concrete debris crushing device according to claim 1, wherein the surface of the tongue piece 7 is set in a horizontal state or a front downward state.